CN201839250U - Single-phase permanent magnet synchronous motor with steering control circuit and steering control circuit - Google Patents
Single-phase permanent magnet synchronous motor with steering control circuit and steering control circuit Download PDFInfo
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- CN201839250U CN201839250U CN2010205434930U CN201020543493U CN201839250U CN 201839250 U CN201839250 U CN 201839250U CN 2010205434930 U CN2010205434930 U CN 2010205434930U CN 201020543493 U CN201020543493 U CN 201020543493U CN 201839250 U CN201839250 U CN 201839250U
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Abstract
A single-phase permanent magnet synchronous motor with a steering control circuit comprises a DC regulated power supply module, a dephased current detection module, a permanent magnet rotor magnetic field polarity detection module, a logic circuit processing module, a power switch of a stator exciting winding, a drive circuit module of the stator exciting winding, and the steering control circuit of an AC power supply. The dephased current detection module and the permanent magnet rotor magnetic field polarity detection module are used for supplying various logic signals, the logic circuit processing module conducts logic processing on the logic signals and outputs control signals to the power switch and the drive circuit module of the stator exciting winding, and the power switch and the drive circuit module of the stator exciting winding control the single-phase permanent magnet synchronous motor to move in a set direction. The adoption of the steering control circuit ensures the single-phase permanent magnet synchronous motor to move in the set direction; and the utility model has the advantages that the control circuit is simple, the cost is low, the reliability and the anti-interference performance are high, and noise of a thyristor switch can be reduced effectively.
Description
[technical field]
The utility model includes the synchronous motor of permanent magnet, particularly includes the synchronous motor of stationary armature and rotary magnet, relates in particular to the control circuit of single-phase permanent body synchronous motor direction of rotation.
[background technology]
As is generally known, single phase alternating current (A.C.) synchronously or asynchronous motor because have only a phase power supply, generation be pulsating field, this pulsating field can be broken down into equal and opposite in direction, two rotating magnetic field components that direction is opposite, thereby does not have starting torque.For small-sized or miniature single-phase permanent body synchronous motor, in fact so long as the shake of stator excitation winding powered on moment rotor, just can allow it change down always along a certain direction, because the rotating magnetic field that rotor rotation produces weakens, until the opposite direction component of offsetting stator field, thereby make rotor rotate always forward, be pulled at last synchronously.Obviously, this start mode of giving free rein to, the direction of rotor rotation is uncertain, this does not allow in many application scenarios.
The rotating direction control method of prior art single-phase permanent body synchronous motor comprises:
1, adopts the method for machinery, make single-phase permanent body synchronous motor realize one-directional rotation by increasing catch.But it is should machinery way complex structure, and not too reliable;
2,, control the one-directional rotation of single-phase permanent body synchronous motor by the method for software detection control.Yet this method anti-interference and reliability are not high, the performance requirement height of key components, and the cost of Shi Xianing is also than higher comparatively speaking.
[utility model content]
The technical problems to be solved in the utility model is to avoid above-mentioned the deficiencies in the prior art part and a kind of single-phase permanent body synchronous motor and steering controling circuit thereof that is provided with steering controling circuit is provided, this steering controling circuit has solved described synchronous motor by each hardware module dexterously and has turned to uncertain problem, can guarantee described synchronous motor reliably by the operation of the direction set, have that control circuit is also simple, with low cost, reliability is high, a strong interference immunity and can effectively reduce advantage such as thyristor switch noise.
The technical scheme that the utility model solve the technical problem employing is:
A kind of single-phase permanent body synchronous motor that is provided with steering controling circuit is provided, comprises the permanent magnet rotor and the stator that is wound with excitation winding of a pair of magnetic pole; Described single-phase permanent body synchronous motor also comprises the steering controling circuit that guarantees that reliably described single-phase permanent body synchronous motor rotates by direction initialization, described steering controling circuit comprises the mains switch and the drive circuit module thereof of D.C. regulated power supply module, dephased current detection module, permanent magnet rotor polarity of the magnetic field detection module, logical circuit processing module and stator excitation winding, and inputs to the mains switch of described D.C. regulated power supply module, dephased current detection module and stator excitation winding and the AC power of drive circuit module thereof;
The described AC power that described D.C. regulated power supply module will be imported is converted to galvanic current and presses V
CC, and output to described each module as the control power supply;
Obtain the logical signal of the real-time positive and negative half cycle of phase shift after-current by described dephased current detection module; Obtaining described permanent magnet rotor by described permanent magnet rotor polarity of the magnetic field detection module is N or the logical signal of S in assigned address real-time magnetic field polarity;
Described each logical signal that provides by described dephased current detection module and permanent magnet rotor polarity of the magnetic field detection module, after described logical circuit processing module is carried out logical process, output a control signal to the mains switch and the drive circuit module thereof of described stator excitation winding, control described single-phase permanent body synchronous motor by the direction operation of having set by the mains switch and the drive circuit module thereof of described stator excitation winding.
Described dephased current detection module comprises resistance R 2, diode D3, triode Q2, capacitor C 4 and resistance R 4; Described AC power is after capacitor C 1 phase shift of described D.C. regulated power supply module, be connected to the base stage of described triode Q2 again through series resistance R2 and diode D3, wherein the negative electrode of diode D3 connects the base stage of described triode Q2, and the collector electrode of triode Q2 is connected to the output voltage V of described D.C. regulated power supply module by resistance R 4
CC, the collector electrode of described triode Q2 also is electrically connected with described logical circuit processing module, and the emitter of described triode Q2 is connected to the isopotential point of circuit; Capacitor C 4 is connected in parallel between the isopotential point of the base stage of triode Q2 and circuit.
Described permanent magnet rotor polarity of the magnetic field detection module detects by the Hall element that is arranged between the described stator bipolar shoe and get close to permanent magnet rotor, comprises resistance R 5 and Hall element U6; First pin of described Hall element U6 is connected to described galvanic current and presses V
CC, second pin of described Hall element U6 is electrically connected with described logical circuit processing module, and the 3rd pin of described Hall element U6 is connected to the isopotential point of described circuit; Described resistance R 5 is connected in parallel between first pin and second pin of described Hall element U6.
Described logical circuit processing module adopts integrated six not gates and integrated double D trigger logical circuit, comprises three not gate U3B～U3D of use, two d type flip flop U2A and U2B, resistance R 6, capacitor C 5, and diode OR gate D4, D5; Described permanent magnet rotor polarity of the magnetic field detection module obtains described permanent magnet rotor and output to the input pin of described not gate U3B and the D input of d type flip flop U2A behind the logical signal of assigned address real-time magnetic field polarity, and the output pin of this not gate U3B connects with the D input of described d type flip flop U2B; Described dephased current detection module obtains the logical signal of the real-time positive and negative half cycle of leading current after the phase shift, output to the input pin of described not gate U3C and the clock signal input terminal CLK of d type flip flop U2A again, the output pin of this not gate U3C connects with the clock signal input terminal CLK of described d type flip flop U2B; The Q output pin of described two d type flip flop U2A and U2B is connected with the anode of described two diode D4 and D5 respectively, the negative electrode of this two diodes D4 and D5 all connects with the input pin of described not gate U3D, the input pin of this not gate U3D also is connected to the isopotential point of described circuit after parallel resistor R6 and capacitor C 5, the output pin of this not gate U3D outputs to the mains switch and the drive circuit module thereof of described stator excitation winding; The isopotential point that each the RESET input RST of described two d type flip flop U2A and U2B and set input SET all are connected to described circuit, described two d type flip flop U2A and U2B's
Output pin is unsettled.
The mains switch of described stator excitation winding and drive circuit module thereof comprise bidirectional thyristor Q1, optical coupler U5, capacitor C 6 and three resistance R 8, R10, R12; Described logical circuit processing module output signal is connected to the negative electrode of the light-emitting diode of described optical coupler U5, and described galvanic current is pressed V
CCThe anode that connects the light-emitting diode of described optical coupler U5 through resistance R 8, the output of described optical coupler U5 is electrically connected the gate electrode G of described bidirectional thyristor Q1, another output of described optical coupler U5 by series connection two resistance R 10 and R12 after be electrically connected to the main electrode T of described bidirectional thyristor Q1
2, this main electrode T
2And be connected another main electrode T of described bidirectional thyristor Q1 with described stator excitation winding one end
1Be electrically connected with the output terminals A C2 of described AC power, this output terminals A C2 is electrically connected to being connected in series a little of described two resistance R 10 and R12 simultaneously after described capacitor C 6; The other end of described excitation winding is electrically connected another output terminals A C1 of described AC power.
Described steering controling circuit also comprises motor operation direction selection module, and it is double-point double-throw switch SW1, is electrically connected with described permanent magnet rotor polarity of the magnetic field detection module and logical circuit processing module respectively; Can select described single-phase permanent body synchronous motor by clockwise or counterclockwise either direction running by this double-point double-throw switch SW1.
A kind of steering controling circuit that is used for single-phase permanent body synchronous motor also is provided, can guarantee reliably that described single-phase permanent body synchronous motor is by direction initialization rotation, comprise the mains switch and the drive circuit module thereof of D.C. regulated power supply module, dephased current detection module, permanent magnet rotor polarity of the magnetic field detection module, logical circuit processing module and stator excitation winding, and input to the mains switch of described D.C. regulated power supply module, dephased current detection module and stator excitation winding and the AC power of drive circuit module thereof;
The described AC power that described D.C. regulated power supply module will be imported is converted to galvanic current and presses V
CC, and output to described each module as the control power supply;
Obtain the logical signal of the real-time positive and negative half cycle of phase shift after-current by described dephased current detection module; Obtaining described permanent magnet rotor by described permanent magnet rotor polarity of the magnetic field detection module is N or the logical signal of S in assigned address real-time magnetic field polarity;
Described each logical signal that provides by described dephased current detection module and permanent magnet rotor polarity of the magnetic field detection module, after described logical circuit processing module is carried out logical process, output a control signal to the mains switch and the drive circuit module thereof of described stator excitation winding, control described single-phase permanent body synchronous motor by the direction operation of having set by the mains switch and the drive circuit module thereof of described stator excitation winding.
Compare with prior art, the utility model is provided with the single-phase permanent body synchronous motor of steering controling circuit and the beneficial effect of steering controling circuit is:
1, utilizes the synchronous working principle of single-phase permanent body synchronous motor, adopt ripe logical circuit, utilize leading current signal after the phase shift as clock pulse signal, and utilize Hall element to detect the direction of polarity of the magnetic field of the permanent magnet rotor of single-phase permanent body synchronous motor in real time, judge by trigger whether the direction that single-phase permanent body synchronous motor rotates is consistent with the direction of setting, if unanimity then open control switch; If continuous several cycle is inconsistent, closing control switch then restarts and detects; Till direction that single-phase permanent body synchronous motor rotates is consistent with direction initialization; Guarantee turning to of single-phase permanent-magnet synchronous electric motor with this by the direction operation of having set;
2, use hardware circuit to realize control, have that circuit is simple, with low cost, reliability is high, a strong interference immunity and can effectively reduce the advantage of thyristor switch noise.
[description of drawings]
Fig. 1 is the electric principle logic diagram that the utility model is provided with the single-phase permanent body synchronous motor preferred embodiment one of steering controling circuit;
Fig. 2 is the basic circuit diagram of described preferred embodiment one, the single-phase permanent body synchronous motor M that this steering controling circuit that drawn among the figure is controlled;
Fig. 3 be described single-phase permanent body synchronous motor when turning clockwise rotor at flashy magnetic pole geometric position schematic diagram;
Fig. 4 be described single-phase permanent body synchronous motor when being rotated counterclockwise rotor at flashy magnetic pole geometric position schematic diagram;
Fig. 5 is the logic true value table that the Hall element of synchronous motor p-m rotor polarity of the magnetic field detection module 400 of the steering controling circuit of described single-phase permanent body synchronous motor detects the p-m rotor position;
Fig. 6 is the logic true value table of the corresponding input and output pin with U2B of trigger U2A position of the logical circuit processing module 600 of described steering controling circuit;
Fig. 7 is supply voltage u
Net, stator excitation winding current i
ExWith phase shift after-current i
cAs the dephased current i of clock pulse signal
C1The polar diagram that concerns between each rotating vector;
Fig. 8 is described single-phase permanent body synchronous motor supply voltage u when rotating by direction initialization
Net, stator excitation winding current i
Ex, as the dephased current i of clock pulse signal
C1, the logical signal of rotor field polarity and the timing diagram of the relevant input and output pin of trigger U2A with U2B;
Supply voltage u when Fig. 9 is described single-phase permanent body synchronous motor and direction initialization reverse rotation
Net, stator excitation winding current i
Ex, as the dephased current i of clock pulse signal
C1, the logical signal of rotor field polarity and the timing diagram of the relevant input and output pin of trigger U2A with U2B;
Figure 10 is the described electric principle logic diagram that is provided with the single-phase permanent body synchronous motor preferred embodiment two of steering controling circuit;
Figure 11 is the basic circuit diagram of described preferred embodiment two, the single-phase permanent body synchronous motor M that this steering controling circuit that drawn among the figure is controlled;
Figure 12 is that the rotor of described single-phase permanent body synchronous motor remains static, during hall element output signal 1, and the timing diagram of the relevant input and output pin of trigger U2A with U2B;
Figure 13 is that the rotor of described single-phase permanent body synchronous motor remains static, during hall element output signal 0, and the timing diagram of the relevant input and output pin of trigger U2A with U2B.
[embodiment]
Below in conjunction with each accompanying drawing the utility model is described in further detail.
Referring to Fig. 1, Fig. 2, Figure 10 and Figure 11, a kind of single-phase permanent body synchronous motor that is provided with steering controling circuit includes the permanent magnet rotor 800 of a pair of magnetic pole and is wound with the stator 900 of excitation winding; Described single-phase permanent body synchronous motor also comprises the steering controling circuit that guarantees that reliably described single-phase permanent body synchronous motor rotates by direction initialization, described steering controling circuit comprises D.C. regulated power supply module 200, dephased current detection module 300, permanent magnet rotor polarity of the magnetic field detection module 400, the mains switch of logical circuit processing module 600 and stator excitation winding and drive circuit module 700 thereof, and input to described D.C. regulated power supply module 200, the AC power 100 of the mains switch of dephased current detection module 300 and stator excitation winding and drive circuit module 700 thereof;
The described AC power 100 that described D.C. regulated power supply module 200 will be imported is converted to galvanic current and presses V
CC, and output to described each module 300,400,600,700 as the control power supply;
Obtain the logical signal of the real-time positive and negative half cycle of phase shift after-current by described dephased current detection module 300; Obtaining described permanent magnet rotor 800 by described permanent magnet rotor polarity of the magnetic field detection module 400 is N or the logical signal of S in assigned address real-time magnetic field polarity;
Described each logical signal that provides by described dephased current detection module 300 and permanent magnet rotor polarity of the magnetic field detection module 400, after described logical circuit processing module 600 is carried out logical process, output a control signal to the mains switch and the drive circuit module 700 thereof of described stator excitation winding, control described single-phase permanent body synchronous motor by the direction operation of having set by the mains switch and the drive circuit module 700 thereof of described stator excitation winding.
Preferred embodiment one:
Referring to Fig. 1 and Fig. 2, a kind of single-phase permanent body synchronous motor that is provided with steering controling circuit, system makes by the convenient method of above-mentioned control single-phase permanent body synchronous motor rotation direction, includes the permanent magnet rotor 800 and the stator 900 that is wound with excitation winding of a pair of magnetic pole; Described single-phase permanent body synchronous motor also comprises the steering controling circuit that guarantees that reliably described single-phase permanent body synchronous motor rotates by direction initialization, described steering controling circuit comprises D.C. regulated power supply module 200, dephased current detection module 300, permanent magnet rotor polarity of the magnetic field detection module 400, the mains switch of logical circuit processing module 600 and stator excitation winding and drive circuit module 700 thereof, and input to described D.C. regulated power supply module 200, the AC power 100 of the mains switch of dephased current detection module 300 and stator excitation winding and drive circuit module 700 thereof.
Referring to Fig. 1 and Fig. 2, described D.C. regulated power supply module 200 comprises resistance R 1, three capacitor C 1～C3, four diode D11～D14, resistance R 3 and voltage stabilizing didoe D2; Described AC power 100 is after the described resistance R 1 and capacitor C 1 step-down phase shift of parallel connection, the bridge circuit rectification of forming through described diode D11～D14 again, press VCC by on described voltage stabilizing didoe D2, producing galvanic current after described resistance R 3 step-downs, and output to the mains switch of described dephased current detection module 300, permanent magnet rotor polarity of the magnetic field detection module 400, logical circuit processing module 600 and stator excitation winding and drive circuit module 700 thereof as the control power supply.Capacitor C 1 mainly plays phase shift and step-down, and capacitor C 2 and C3 mainly play filtering, and wherein capacitor C 2 is an electrochemical capacitor.
Referring to Fig. 1 and Fig. 2, described dephased current detection module 300 comprises resistance R 2, diode D3, triode Q2 and resistance R 4; Described AC power 100 is after capacitor C 1 phase shift of described D.C. regulated power supply module 200, be connected to the base stage of described triode Q2 again through series resistance R2 and diode D3, wherein the negative electrode of diode D3 connects the base stage of described triode Q2, and the collector electrode of triode Q2 is connected to the output voltage V of described D.C. regulated power supply module 200 by resistance R 4
CCThe collector electrode of described triode Q2 also is electrically connected with described logical circuit processing module 600, the collector electrode of triode Q2 is that another input pin 3 is electrically connected with the input pin 5 of the not gate U3C of described logical circuit processing module 600 and the clock signal input terminal CLK of d type flip flop U2A also as described, and the emitter of described triode Q2 is connected to the isopotential point of circuit.
Described dephased current detection module 300 also comprises the capacitor C 4 that is connected in parallel on triode Q2 base circuit.
Referring to Fig. 1 to Fig. 4, described permanent magnet rotor polarity of the magnetic field detection module 400 detects by the Hall element that is arranged between described stator 900 bipolar shoes and get close to permanent magnet rotor 800, comprises resistance R 5 and Hall element U6; First pin 1 of described Hall element U6 is connected to described galvanic current and presses V
CC Second pin 2 of described Hall element U6 is electrically connected with described logical circuit processing module 600, second of Hall element U6 pin 2 is that input pin 5 is electrically connected with the input pin 3 of the not gate U3B of described logical circuit processing module 600 and the D input of d type flip flop U2A as described, and the 3rd pin 3 of described Hall element U6 is connected to the isopotential point of described circuit; Described resistance R 5 is connected in parallel between first pin 1 and first pin 2 of described Hall element U6; Described Hall element U6 model is US2881 or US1881.The permanent magnet rotor 800 of the corresponding described single-phase permanent body synchronous motor in each pin position of described Hall element U6 in the relation of the logical signal of assigned address real-time magnetic field polarity N, S utmost point position as shown in Figure 5.
Referring to Fig. 3 and Fig. 4, label 910 is the magnetic gap breach that described stator 900 pole shoe tips or root are provided with.
Referring to Fig. 1 and Fig. 2, described logical circuit processing module 600 adopts integrated six not gates and integrated double D trigger logical circuit, comprise three not gate U3B～U3D of use, two d type flip flop U2A and U2B, resistance R 6, capacitor C 5, and diode OR gate D4, D5; Described permanent magnet rotor polarity of the magnetic field detection module 400 obtains that described permanent magnet rotor 800 outputs to the input pin 3 of described not gate U3B behind the logical signal of assigned address real-time magnetic field polarity and the D input of d type flip flop U2A is an input pin 5, second pin 2 of the Hall element U6 of permanent magnet rotor polarity of the magnetic field detection module 400 is that input pin 5 is electrically connected with the input pin 3 of the not gate U3B of described logical circuit processing module 600 and the D input of d type flip flop U2A as described, and the output pin 4 of this not gate U3B is that input pin 9 connects with the D input of described d type flip flop U2B; Described dephased current detection module 300 obtain leading current after the phase shift in real time just, the logical signal of negative half period, outputing to the input pin 5 of described not gate U3C and the clock signal input terminal CLK of d type flip flop U2A again is another input pin 3, the collector electrode of the triode Q2 of dephased current detection module 300 is that another input pin 3 is electrically connected with the input pin 5 of the not gate U3C of described logical circuit processing module 600 and the clock signal input terminal CLK of d type flip flop U2A as described, and the output pin 6 of this not gate U3C is that another input pin 11 connects with the clock signal input terminal CLK of described d type flip flop U2B; The Q output pin 1 of described two d type flip flop U2A and U2B, 13 are connected with the anode of described two diode D4 and D5 respectively, the negative electrode of this two diodes D4 and D5 all connects with the input pin 9 of described not gate U3D, the input pin 9 of this not gate U3D also is connected to the isopotential point of described circuit after parallel resistor R6 and capacitor C 5, the output pin 8 of this not gate U3D outputs to the mains switch and the drive circuit module 700 thereof of described stator excitation winding, as the output pin 8 of not gate U3D with as described in the cathodic electricity of light-emitting diode of optical coupler U5 of the mains switch of stator excitation winding and drive circuit module 700 thereof be connected; Each the RESET input RST and the set input SET of described two d type flip flop U2A and U2B, be the isopotential point that two input pins 10,8 in addition of in addition two input pins 4,6 of described d type flip flop U2A and d type flip flop U2B all are connected to described circuit, described two d type flip flop U2A and U2B's
Output pin 2,12 is unsettled.The relation of the logic true value table signal of the corresponding input and output pin with U2B of described trigger U2A position as shown in Figure 6.
Referring to Fig. 1 and Fig. 2, the mains switch of described stator excitation winding and drive circuit module 700 thereof comprise bidirectional thyristor Q1, optical coupler U5, capacitor C 6 and three resistance R 8, R10, R12; Described logical circuit processing module 600 output signals are connected to the negative electrode of the light-emitting diode of described optical coupler U5, as the output pin 8 of the not gate U3D of logical circuit processing module 600 with as described in the cathodic electricity of light-emitting diode of optical coupler U5 be connected, described galvanic current is pressed V
CCThe anode that connects the light-emitting diode of described optical coupler U5 through resistance R 8, the output of described optical coupler U5 is electrically connected the gate electrode G of described bidirectional thyristor Q1, another output of described optical coupler U5 by series connection two resistance R 10 and R12 after be electrically connected to the main electrode T of described bidirectional thyristor Q1
2, this main electrode T
2And be connected another main electrode T of described bidirectional thyristor Q1 with described stator 900 excitation winding one end
1Be electrically connected with the output terminals A C2 of described AC power 100, this output terminals A C2 is electrically connected to being connected in series a little of described two resistance R 10 and R12 simultaneously after described capacitor C 6; The other end of described excitation winding is electrically connected another output terminals A C1 of described AC power 100.
Preferred embodiment two:
Referring to Figure 10 and Figure 11, basic identical with preferred embodiment one, difference is:
Increased the motor operation direction and selected module 500, it is double-point double-throw switch SW1, is electrically connected with described permanent magnet rotor polarity of the magnetic field detection module 400 and logical circuit processing module 600 respectively.
Referring to Figure 11, the moving contact 1 of double-point double-throw switch SW1 is that input pin 5 is electrically connected with the D input of the d type flip flop U2A of described logical circuit processing module 600, and its another moving contact 2 is that input pin 9 is electrically connected with the D input of the d type flip flop U2B of described logical circuit processing module 600; Corresponding with moving contact 1 is two fixed contacts 3 and 4, and corresponding with moving contact 2 be two fixed contacts 5 and 6, wherein fixed contact 3 back that is connected with 6 is electrically connected with second pin 2 of the Hall element U6 of described permanent magnet rotor polarity of the magnetic field detection module 400, and fixed contact 4 is connected with 5 afterwards and is electrically connected with the output pin 4 of the not gate U3B of described logical circuit processing module 600.
Can exchange the signal of the D input of described two d type flip flop U2A and U2B by this double-point double-throw switch SW1, to select described single-phase permanent body synchronous motor by clockwise or counterclockwise either direction running.
The supply frequency 60Hz or the 50Hz of the rotary speed of the permanent magnet rotor 800 of single-phase permanent body synchronous motor and its stator 900 excitation winding adapt, and are 3600 or 3000rpm in each embodiment of the utility model.
Referring to Fig. 7 to Fig. 9, u
NetBe the mains voltage waveform figure of described single-phase permanent body synchronous motor; i
C1Be the dephased current oscillogram that after described capacitor C 1 phase shift, is used as clock pulse signal, be used as the dephased current i of clock pulse signal after this phase shift
cWith respect to described supply voltage u
NetWant leading α angle; i
ExBe the excitation current waveform figure of the stator excitation winding of described single-phase permanent body synchronous motor, this exciting current i
ExWith respect to described supply voltage u
NetFall behind the β angle, the situation when this β angle can be because of described single-phase permanent body synchronous motor real work is different to be changed to some extent.Referring to Fig. 2 and Figure 11, the current i after described capacitor C 1 phase shift
cComprise dephased current i as clock pulse signal
C1With the dephased current i that flows into bridge rectifier D11～D14
C2Should be as the dephased current i of clock pulse signal
C1With the current i after the power supply phase shift
cBasic synchronization.
Referring to Fig. 2, Fig. 8 and Fig. 9, dephased current i
C1From t0 to t1 constantly after, through described resistance R 2 step-downs, diode D3 is become by conducting and ends, described triode Q2 is also become by conducting and ends, the collector electrode that is engraved in triode Q2 when t1 produces one by the rising edge step of low level " 0 " to high level " 1 ", and this is the clock signal input terminal U2A-CLK of the d type flip flop on Fig. 8 and Fig. 9; As dephased current i
C1During from t2 to t3, through described resistance R 2 step-downs, diode D3 becomes conducting by ending, and described triode Q2 also becomes conducting by ending, and the collector electrode that is engraved in triode Q2 when t2 produces one by the trailing edge step of high level " 1 " to low level " 0 "; The base capacity C4 of triode Q2 strobes on Fig. 2.
Single-phase permanent body synchronous motor might not be realized run-in synchronism in the cycle at a supply voltage when starting, may need swinging back and forth of a plurality of supply voltage cycles just can reach run-in synchronism.Referring to Fig. 3 and Fig. 4, described single-phase permanent body synchronous motor is under all identical situation of direction, stator coil and the rotor of stator, stator, and as the control of obstructed oversampling circuit, this motor opposite two kinds of rotation directions after reaching run-in synchronism are all possible.
The rotation direction that is setting with the clockwise rotation direction CW of Fig. 3 below, and be example with the basic circuit diagram of Fig. 2 preferred embodiment one, in conjunction with other each accompanying drawing control procedure of the present utility model is described in further detail.
Suppose to be kept in motion when described single-phase permanent body synchronous motor powers on, and for clockwise rotating; Referring to Fig. 3 and Fig. 8, the polarity of the magnetic field that stator 900 excitation winding of this motor produce is consistent with the polarity in permanent magnet rotor 800 magnetic fields, under two magnetic field repulsive interactions, clockwise rotate if promote rotor, the exciting current direction of the polarity of the magnetic field of this permanent magnet rotor 800 and this stator 900 excitation winding changes meeting constantly near synchronous at this moment, identical at the polarity of the magnetic field that stator 900 left side pole shoes produce at t1 with polarity of the magnetic field and this stator 900 excitation winding of detected this permanent magnet rotor 800 of t 2 moment Hall element U6, d type flip flop U2A and U2B all export the signal of high level " 1 " simultaneously, keep the mains switch bidirectional thyristor Q1 of these stator 900 excitation winding to be in opening always, continue to keep clockwise rotating.
Suppose to be kept in motion when described single-phase permanent body synchronous motor powers on, but, do not meet the rotation direction that the user sets for rotating counterclockwise; Referring to Fig. 4 and Fig. 9, the polarity of the magnetic field that stator 900 excitation winding of this motor produce is opposite with the polarity of the magnetic field of described permanent magnet rotor 800; This situation, as under the very little state of permanent magnet rotor 800 initial velocity static or permanent magnet rotor 800, under two magnetic fields attracted each other the effect of power, permanent magnet rotor 800 can be held and can not be rotated; If but this permanent magnet rotor 800 just had the maximum field of the maximum field of certain initial velocity and this permanent magnet rotor 800 and described stator 900 excitation winding originally not at same axis, there is certain included angle, motor can be under two magnetic fields attract each other the effect of power, the running of pulling in; But because be to rotate counterclockwise, the N utmost point of permanent magnet rotor 800 has arrived Hall element U6 place, and is just opposite at the polarity of the magnetic field that stator 900 left side pole shoes produce with stator 900 excitation winding with the polarity of the magnetic field of the detected permanent magnet rotor 800 of t2 moment Hall element U6 at t1; Like this, with reference to Fig. 2 and Fig. 9, the signal of the equal output low level of d type flip flop U2A and U2B " 0 ", because two d type flip flop U2A and U2B are when clock signal input terminal CLK rising edge separately, its equal reset of data-signal input D separately, so their Q output is the signal of output low level " 0 " all,, just turn-off the mains switch bidirectional thyristor Q1 of stator excitation winding behind resistance R 6 and capacitor C 5 time-delay discharge offs; Wait and satisfy the condition that d type flip flop U2A or U2B are output as high level " 1 " signal, again trigger bidirectional thyristor Q1 again, make described single-phase permanent body synchronous motor restart to start, so repeatedly, described permanent magnet rotor 800 swings back and forth, consistent until the polarity of the magnetic field that stator 900 excitation winding of this motor produce with the polarity of the magnetic field of permanent magnet rotor 800, make two d type flip flop U2A and U2B output be the signal of high level " 1 ", continue to keep the permanent magnet rotor 800 realization clockwise direction run-in synchronisms of this motor.
After described single-phase permanent body synchronous motor powered on, referring to Fig. 2, its steering controling circuit had just had the control power supply, thereby two d type flip flop U2A and U2B have also had clock signal clk.If at this moment the permanent magnet rotor 800 of this motor remains static, then no matter Hall element U6 detects these permanent magnet rotor 800 magnetic poles is the S utmost point or the N utmost point, that is its output logic true value is " 1 " or " 0 ", it is the signal of high level " 1 " that described two d type flip flop U2A and U2B have a data-signal input D at least, this signal " 1 " is fixed this moment, because described permanent magnet rotor 800 is static, and described two d type flip flop U2A are opposite mutually with the clock signal clk phase place of U2B, so under the effect of clock signal clk, just having a Q output at least is the signal of high level " 1 ", behind diode OR gate D4 and D5, again through not gate U3D output low level " 0 " signal, finally make optical coupler U5 drive bidirectional thyristor Q1 conducting, these motor stator 900 excitation winding flow through exciting current i
Ex, its permanent magnet rotor 800 breaks away from inactive state then.
The rotor of described single-phase permanent body synchronous motor remains static, and during hall element output signal 1, the sequential relationship of the relevant input and output pin with U2B of trigger U2A is seen Figure 12;
The rotor of described single-phase permanent body synchronous motor remains static, and during hall element output signal 0, the sequential relationship of the relevant input and output pin with U2B of trigger U2A is seen Figure 13.
Figure 11 preferred embodiment two, just by a double-point double-throw switch SW1, switch two d type flip flop U2A and U2B detection signal in t 1, t2 moment permanent magnet rotor 800, matching relationship with the polarity of the magnetic field that changes polarity of the magnetic field that stator 900 excitation winding produce and permanent magnet rotor 800, thereby reach the purpose of control permanent magnet rotor 800 different rotation directions, operation principle is identical with the control procedure of above-mentioned single-phase permanent body synchronous motor.In addition, realize the switching of permanent magnet rotor 800 rotation directions, the signal of clock signal input pin CLK that can also be by switching two d type flip flop U2A and U2B realizes, also can be by switching the exciting current i of stator 900 excitation winding
ExDirection realize.
The utility model is provided with the used electronic component list of single-phase permanent body synchronous motor preferred embodiment of steering controling circuit:
| The components and parts title | Numbering | Model |
| Hall element | U6? | US2881? |
| Double D trigger | U2? | CD4013? |
| Optical coupler U5 | U5? | MOC3021? |
| Triode | Q2? | 9014? |
| Bidirectional thyristor | Q1? | BT136? |
Through evidence many times, the single-phase permanent body synchronous motor of two preferred embodiments of the present utility model can both be by the direction operation of having set.
The above embodiment has only expressed preferred implementation of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim; Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection range of the present utility model; Therefore, all equivalents and modifications of being done with the utility model claim scope all should belong to the covering scope of the utility model claim.
Claims (10)
1. single-phase permanent body synchronous motor that is provided with steering controling circuit includes the permanent magnet rotor (800) of a pair of magnetic pole and is wound with the stator (900) of excitation winding; It is characterized in that:
Also comprise the steering controling circuit that guarantees that reliably described single-phase permanent body synchronous motor rotates by direction initialization, described steering controling circuit comprises D.C. regulated power supply module (200), dephased current detection module (300), permanent magnet rotor polarity of the magnetic field detection module (400), the mains switch of logical circuit processing module (600) and stator excitation winding and drive circuit module (700) thereof, and input to described D.C. regulated power supply module (200), the AC power (100) of the mains switch of dephased current detection module (300) and stator excitation winding and drive circuit module (700) thereof;
The described AC power (100) that described D.C. regulated power supply module (200) will be imported is converted to galvanic current and presses VCC, and outputs to described each module (300,400,600,700) as the control power supply;
Obtain the logical signal of the real-time positive and negative half cycle of phase shift after-current by described dephased current detection module (300); Obtaining described permanent magnet rotor (800) by described permanent magnet rotor polarity of the magnetic field detection module (400) is N or the logical signal of S in assigned address real-time magnetic field polarity;
Described each logical signal that provides by described dephased current detection module (300) and permanent magnet rotor polarity of the magnetic field detection module (400), after described logical circuit processing module (600) is carried out logical process, output a control signal to the mains switch and the drive circuit module (700) thereof of described stator excitation winding, control described single-phase permanent body synchronous motor by the direction operation of having set by the mains switch and the drive circuit module (700) thereof of described stator excitation winding.
2. the single-phase permanent body synchronous motor that is provided with steering controling circuit according to claim 1 is characterized in that:
Described dephased current detection module (300) comprises resistance R 2, diode D3, triode Q2, capacitor C 4 and resistance R 4; Described AC power (100) is after capacitor C 1 phase shift of described D.C. regulated power supply module (200), be connected to the base stage of described triode Q2 again through series resistance R2 and diode D3, wherein the negative electrode of diode D3 connects the base stage of described triode Q2, and the collector electrode of triode Q2 is connected to the output voltage V of described D.C. regulated power supply module (200) by resistance R 4
CC, the collector electrode of described triode Q2 also is electrically connected with described logical circuit processing module (600), and the emitter of described triode Q2 is connected to the isopotential point of circuit; Capacitor C 4 is connected in parallel between the isopotential point of the base stage of triode Q2 and circuit.
3. the single-phase permanent body synchronous motor that is provided with steering controling circuit according to claim 1 is characterized in that:
Described permanent magnet rotor polarity of the magnetic field detection module (400) detects by the Hall element that is arranged between described stator (900) bipolar shoe and get close to permanent magnet rotor (800), comprises resistance R 5 and Hall element U6; First pin (1) of described Hall element U6 is connected to described galvanic current and presses V
CC, second pin (2) of described Hall element U6 is electrically connected with described logical circuit processing module (600), and the 3rd pin (3) of described Hall element U6 is connected to the isopotential point of described circuit; Described resistance R 5 is connected in parallel between first pin (1) and second pin (2) of described Hall element U6.
4. the single-phase permanent body synchronous motor that is provided with steering controling circuit according to claim 1 is characterized in that:
Described logical circuit processing module (600) adopts integrated six not gates and integrated double D trigger logical circuit, comprises three not gate U3B～U3D of use, two d type flip flop U2A and U2B, resistance R 6, capacitor C 5, and diode OR gate D4, D5; Described permanent magnet rotor polarity of the magnetic field detection module (400) obtains that described permanent magnet rotor (800) outputs to the input pin (3) of described not gate U3B behind the logical signal of assigned address real-time magnetic field polarity and the D input of d type flip flop U2A is input pin (5), and the output pin (4) of this not gate U3B is that input pin (9) connects with the D input of described d type flip flop U2B; Described dephased current detection module (300) obtains the logical signal of the real-time positive and negative half cycle of leading current after the phase shift, outputing to the input pin (5) of described not gate U3C and the clock signal input terminal CLK of d type flip flop U2A again is another input pin (3), and the output pin (6) of this not gate U3C is that another input pin (11) connects with the clock signal input terminal CLK of described d type flip flop U2B; The Q output pin (1,13) of described two d type flip flop U2A and U2B is connected with the anode of described two diode D4 and D5 respectively, the negative electrode of this two diodes D4 and D5 all connects with the input pin (9) of described not gate U3D, the input pin (9) of this not gate U3D also is connected to the isopotential point of described circuit after parallel resistor R6 and capacitor C 5, the output pin (8) of this not gate U3D outputs to the mains switch and the drive circuit module (700) thereof of described stator excitation winding; Each the RESET input RST and the set input SET of described two d type flip flop U2A and U2B, be the isopotential point that other two input pins (10,8) of in addition two input pins (4,6) of described d type flip flop U2A and d type flip flop U2B all are connected to described circuit, described two d type flip flop U2A and U2B's
Output pin (2,12) is unsettled.
5. the single-phase permanent body synchronous motor that is provided with steering controling circuit according to claim 1 is characterized in that:
The mains switch of described stator excitation winding and drive circuit module thereof (700) comprise bidirectional thyristor Q1, optical coupler U5, capacitor C 6 and three resistance R 8, R10, R12; Described logical circuit processing module (600) output signal is connected to the negative electrode of the light-emitting diode of described optical coupler U5, and described galvanic current is pressed V
CCThe anode that connects the light-emitting diode of described optical coupler U5 through resistance R 8, the output of described optical coupler U5 is electrically connected the gate electrode G of described bidirectional thyristor Q1, another output of described optical coupler U5 by series connection two resistance R 10 and R12 after be electrically connected to the main electrode T of described bidirectional thyristor Q1
2, this main electrode T
2And be connected another main electrode T of described bidirectional thyristor Q1 with described stator (900) excitation winding one end
1Be electrically connected with the output terminals A C2 of described AC power (100), this output terminals A C2 is electrically connected to being connected in series a little of described two resistance R 10 and R12 simultaneously after described capacitor C 6; The other end of described excitation winding is electrically connected another output terminals A C1 of described AC power (100).
6. according to each described single-phase permanent body synchronous motor that is provided with steering controling circuit of claim 1 to 5, it is characterized in that:
Described steering controling circuit also comprises motor operation direction selection module (500), and it is double-point double-throw switch SW1, is electrically connected with described permanent magnet rotor polarity of the magnetic field detection module (400) and logical circuit processing module (600) respectively; Can select described single-phase permanent body synchronous motor by clockwise or counterclockwise either direction running by this double-point double-throw switch SW1.
7. steering controling circuit that is used for single-phase permanent body synchronous motor can guarantee reliably that described single-phase permanent body synchronous motor rotates by direction initialization, is characterized in that:
Comprise the mains switch and the drive circuit module (700) thereof of D.C. regulated power supply module (200), dephased current detection module (300), permanent magnet rotor polarity of the magnetic field detection module (400), logical circuit processing module (600) and stator excitation winding, and the AC power (100) that inputs to the mains switch and the drive circuit module (700) thereof of described D.C. regulated power supply module (200), dephased current detection module (300) and stator excitation winding;
The described AC power (100) that described D.C. regulated power supply module (200) will be imported is converted to galvanic current and presses V
CC, and output to described each module (300,400,600,700) as the control power supply;
Obtain the logical signal of the real-time positive and negative half cycle of phase shift after-current by described dephased current detection module (300); Obtaining permanent magnet rotor (800) by described permanent magnet rotor polarity of the magnetic field detection module (400) is N or the logical signal of S in assigned address real-time magnetic field polarity;
Described each logical signal that provides by described dephased current detection module (300) and permanent magnet rotor polarity of the magnetic field detection module (400), after described logical circuit processing module (600) is carried out logical process, output a control signal to the mains switch and the drive circuit module (700) thereof of described stator excitation winding, control described single-phase permanent body synchronous motor by the direction operation of having set by the mains switch and the drive circuit module (700) thereof of described stator excitation winding.
8. the steering controling circuit that is used for single-phase permanent body synchronous motor according to claim 7 is characterized in that:
Described permanent magnet rotor polarity of the magnetic field detection module (400) detects by the Hall element that is arranged between described stator (900) bipolar shoe and get close to permanent magnet rotor (800), comprises resistance R 5 and Hall element U6; First pin (1) of described Hall element U6 is connected to described galvanic current and presses V
CC, second pin (2) of described Hall element U6 is electrically connected with described logical circuit processing module (600), and the 3rd pin (3) of described Hall element U6 is connected to the isopotential point of described circuit; Described resistance R 5 is connected in parallel between first pin of pin (1) and second pin (2) of described Hall element U6.
9. the steering controling circuit that is used for single-phase permanent body synchronous motor according to claim 7 is characterized in that:
Described logical circuit processing module (600) adopts integrated six not gates and integrated double D trigger logical circuit, comprises three not gate U3B～U3D of use, two d type flip flop U2A and U2B, resistance R 6, capacitor C 5, and diode OR gate D4, D5; Described permanent magnet rotor polarity of the magnetic field detection module (400) obtains that described permanent magnet rotor (800) outputs to the input pin (3) of described not gate U3B behind the logical signal of assigned address real-time magnetic field polarity and the D input of d type flip flop U2A is input pin (5), and the output pin (4) of this not gate U3B is that input pin (9) connects with the D input of described d type flip flop U2B; Described dephased current detection module (300) obtains the logical signal of the real-time positive and negative half cycle of leading current after the phase shift, outputing to the input pin (5) of described not gate U3C and the clock signal input terminal CLK of d type flip flop U2A again is another input pin (3), and the output pin (6) of this not gate U3C is that another input pin (11) connects with the clock signal input terminal CLK of described d type flip flop U2B; The Q output pin (1,13) of described two d type flip flop U2A and U2B is connected with the anode of described two diode D4 and D5 respectively, the negative electrode of this two diodes D4 and D5 all connects with the input pin (9) of described not gate U3D, the input pin (9) of this not gate U3D also is connected to the isopotential point of described circuit after parallel resistor R6 and capacitor C 5, the output pin (8) of this not gate U3D outputs to the mains switch and the drive circuit module (700) thereof of described stator excitation winding; Each the RESET input RST and the set input SET of described two d type flip flop U2A and U2B, be the isopotential point that other two input pins (10,8) of in addition two input pins (4,6) of described d type flip flop U2A and d type flip flop U2B all are connected to described circuit, described two d type flip flop U2A and U2B's
Output pin (2,12) is unsettled.
10. the steering controling circuit that is used for single-phase permanent body synchronous motor according to claim 7 is characterized in that:
The mains switch of described stator excitation winding and drive circuit module thereof (700) comprise bidirectional thyristor Q1, optical coupler U5, capacitor C 6 and three resistance R 8, R10, R12; Described logical circuit processing module (600) output signal is connected to the negative electrode of the light-emitting diode of described optical coupler U5, and described galvanic current is pressed V
CCThe anode that connects the light-emitting diode of described optical coupler U5 through resistance R 8, the output of described optical coupler U5 is electrically connected the gate electrode G of described bidirectional thyristor Q1, another output of described optical coupler U5 by series connection two resistance R 10 and R12 after be electrically connected to the main electrode T of described bidirectional thyristor Q1
2, this main electrode T
2And be connected another main electrode T of described bidirectional thyristor Q1 with described stator (900) excitation winding one end
1Be electrically connected with the output terminals A C2 of described AC power (100), this output terminals A C2 is electrically connected to being connected in series a little of described two resistance R 10 and R12 simultaneously after described capacitor C 6; The other end of described excitation winding is electrically connected another output terminals A C1 of described AC power (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205434930U CN201839250U (en) | 2010-01-21 | 2010-09-13 | Single-phase permanent magnet synchronous motor with steering control circuit and steering control circuit |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020056691 | 2010-01-21 | ||
| CN201020056691.4 | 2010-01-21 | ||
| CN2010205434930U CN201839250U (en) | 2010-01-21 | 2010-09-13 | Single-phase permanent magnet synchronous motor with steering control circuit and steering control circuit |
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| Publication Number | Publication Date |
|---|---|
| CN201839250U true CN201839250U (en) | 2011-05-18 |
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ID=44009351
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102931211A Expired - Fee Related CN102075130B (en) | 2010-01-21 | 2010-09-13 | Convenient method for controlling direction of rotation of synchronous motor of single-phase permanent magnet and motor using same |
| CN2010205434930U Expired - Lifetime CN201839250U (en) | 2010-01-21 | 2010-09-13 | Single-phase permanent magnet synchronous motor with steering control circuit and steering control circuit |
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| CN2010102931211A Expired - Fee Related CN102075130B (en) | 2010-01-21 | 2010-09-13 | Convenient method for controlling direction of rotation of synchronous motor of single-phase permanent magnet and motor using same |
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| CN (2) | CN102075130B (en) |
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| CN2046289U (en) * | 1989-04-01 | 1989-10-18 | 邓秀英 | Directional start single phase permanent-magnet synchronous motor |
| JP4030571B1 (en) * | 2006-10-26 | 2008-01-09 | 有限会社ケイ・アールアンドデイ | Single-phase AC synchronous motor |
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- 2010-09-13 CN CN2010205434930U patent/CN201839250U/en not_active Expired - Lifetime
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| CN102075130B (en) | 2013-09-25 |
| CN102075130A (en) | 2011-05-25 |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110518 Effective date of abandoning: 20130925 |
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| RGAV | Abandon patent right to avoid regrant |