CN203933487U - A kind of commutation control module - Google Patents
A kind of commutation control module Download PDFInfo
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- CN203933487U CN203933487U CN201420356543.2U CN201420356543U CN203933487U CN 203933487 U CN203933487 U CN 203933487U CN 201420356543 U CN201420356543 U CN 201420356543U CN 203933487 U CN203933487 U CN 203933487U
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Abstract
A commutation control module, belongs to electric machines control technology field.Controlled device is controlled and is connected and does teamwork with switching device, comprise electronic control circuit and inverting module change over contact, electronic control circuit comprises microprocessor, signal sample circuit, bistable electro-magnet drive circuit, bistable electro-magnet, forward and reverse auxiliary contact, power supply sample circuit and power-switching circuit, microprocessor and signal sample circuit, power-switching circuit, bistable electro-magnet drive circuit and power supply sample circuit connect, power-switching circuit is connected with bistable electro-magnet drive circuit, bistable electro-magnet drive circuit is connected with bistable electro-magnet, power supply sample circuit and the common connecting switch of forward and reverse auxiliary contact, forward and reverse auxiliary contact, signal sample circuit, power-switching circuit and bistable electro-magnet drive circuit are connected with control device respectively.Advantage: simple in structure, can prevent that bistable electro-magnet from repeating energising, major loop response time closing is short.
Description
Technical field
The utility model belongs to electric machines control technology field, is specifically related to a kind of commutation control module, for the commutation to motor, controls.
Background technology
At present; for the commutation of motor, control great majority both at home and abroad and adopt two contactors, two control and protective switching devices or two other device for switching to install electrical interlock and mechanical interlocking additional, and realize in conjunction with the mode of outside forward, reversion and shutdown control command.In above-mentioned commutation control program, two electrical equipment are installed side by side the size that causes equipment on Width are increased and is twice, and are unfavorable for installing.French Patent (FRP) Granted publication FR2818006B1 has introduced a kind of switch module, specifically refers to Fig. 5, and described switch module 1 is combined with switching device 30, realizes the forward and backward of motor M and controls.Switch module 1 comprises control circuit 2 and multipole switch 3.Multipole switch 3 is controlled for realizing forward and backward; Control circuit 2 comprises the first excitation 4, power circuit 5, the second excitation 6, bistable electro-magnet 15, forward and reverse auxiliary contact 18 and microprocessor 17.Described microprocessor 17 is according to the forward and backward instruction receiving from C1, C ' 1 signal input part, by the first excitation 4, controlling bistable electro-magnet 15 moves as forward and backward, by the electromagnet 31 in 6 pairs of switching devices 30 of the second excitation, power, make 15 of bistable electro-magnets in the situation that auxiliary contact 33 closures associated with electromagnet 31 just start action.Switch module 1 described in this design is single device for switching, small volume, but still there is following defect: first, known according to description, when switch module 1 is in forward position and switching device 30 during in open position, if access positive rotaring signal at C1 signal input part, will cause bistable electro-magnet 15 action of again switching on, there is the anxiety that design is unreasonable; Secondly, auxiliary contact 33 in switching device 30 is associated with the first excitation 4 and the microprocessor 17 of switch module 1, when switching device 30 is in off-state, switch module 1 only could be realized forward and backward operation when auxiliary contact 33 being detected in closure state; And when switching device 30 is in closure state, if switch module 1 detects auxiliary contact 33 in off-state, now will not respond forward and backward operational order, this has caused the complicated of circuit design; Finally, control device 40 is connected to the electromagnet 31 of switching device 30 after forward and reverse auxiliary contact 18 and the second excitation 6, microprocessor 17 needs first to controlling the break-make of the second excitation 6 after auxiliary contact 33 detections of switching device 30, therefore when switch module 1 is when forward position, control command are positive operation, it is long that control command control switch module 1 realizes time of major loop closure.
In view of above-mentioned prior art, be necessary the structure of the control device for reversing of existing motor to be improved, for this reason, the applicant has done useful design, and technical scheme described below produces under this background.
Summary of the invention
The purpose of this utility model is to overcome the defect of background technology, provide a kind of wiring easily, reliable in action, internal circuit is simple, with low cost and can prevent that bistable electro-magnet from making the commutation control module of coil electricity again.
The purpose of this utility model reaches like this, a kind of commutation control module, the controlled device of described commutation control module is controlled and is connected and does teamwork with switching device, the multipole switch contact that described switching device comprises electromagnet and is subject to magnet control, the input of described multipole switch contact connects external power source, the inverting module change over contact that described commutation control module comprises electronic control circuit and controlled by electronic control circuit, the input of described inverting module change over contact is connected with the output of the multipole switch contact of switching device, the output of inverting module change over contact is connected to motor M, it is characterized in that: described electronic control circuit comprises microprocessor, for conversion control device, just send, reverse control signal is also delivered to the signal sample circuit of microprocessor by the signal after conversion, the bistable electro-magnet drive circuit that controlled by microprocessor, the bistable electro-magnet being driven by bistable electro-magnet drive circuit, the forward and reverse auxiliary contact that is subject to bistable electro-magnet control and links with inverting module change over contact, for changing the power supply signal of forward and reverse auxiliary contact output and the signal after conversion being delivered to the power supply sample circuit of microprocessor and for microprocessor and bistable electro-magnet drive circuit being provided to the power-switching circuit of power supply, described microprocessor respectively with signal sample circuit, power-switching circuit, bistable electro-magnet drive circuit and power supply sample circuit connect, power-switching circuit is connected with bistable electro-magnet drive circuit, bistable electro-magnet drive circuit is connected with bistable electro-magnet, power supply sample circuit is connected to one end of the electromagnet of switching device jointly after being connected with the common port of forward and reverse auxiliary contact, after the other end of electromagnet is connected with power-switching circuit to the reference ground terminals N of the control module that commutates, forward and reverse auxiliary contact just, anti-output, signal sample circuit, power-switching circuit and bistable electro-magnet drive circuit are connected with control device respectively.
In a specific embodiment of the present utility model, described control device consists of change over switch, described change over switch has a common port, one forward starting end, one stops end and a back-to-back starting end, described common port connects power supply, the positive output end of described forward starting end and described forward and reverse auxiliary contact, signal sample circuit, power-switching circuit and bistable electro-magnet drive circuit connect, described back-to-back starting end and the anti-output of forward and reverse auxiliary contact, signal sample circuit, power-switching circuit and bistable electro-magnet drive circuit connect, described stop holding unsettled.
In another specific embodiment of the present utility model, described power-switching circuit comprises rectifier bridge B1, power supply chip IC1, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the first capacitor C 1, the first electrochemical capacitor E1, the second electrochemical capacitor E2, the first diode D1, the second diode D2, the first inductance L 1 and power conversion chip U1, described power supply chip IC1 adopts LNK305, power conversion chip U1 adopts L78L05, two inputs of described rectifier bridge B1 connect AC230V AC power, the positive output end of rectifier bridge B1 connects 5 pin of power supply chip IC1,1 pin of power supply chip IC1 and 2 pin, 7 pin and 8 pin connect, and one end of common and the first capacitor C 1, one end of the second resistance R 2, the negative pole of the second electrochemical capacitor E2, the negative pole of one end of the first inductance L 1 and the first diode D1 connects, and the other end of the first capacitor C 1 connects 3 pin of power supply chip IC1,4 pin of the other end of the second resistance R 2 and power supply chip IC1, one end of the negative pole of the first electrochemical capacitor E1 and the first resistance R 1 connects, the other end of the positive pole of the first electrochemical capacitor E1 and the first resistance R 1, the negative pole of anodal and the second diode D2 of the second electrochemical capacitor E2 connects, the other end of the positive pole of the second diode D2 and the first inductance L 1, 3 pin of one end of the 3rd resistance R 3 and power conversion chip U1 connect, and output+24V DC power supply, the 1 pin output+5V DC power supply of power conversion chip U1, the negative output terminal of rectifier bridge B1, the positive pole of the first diode D1, the 2 pin common grounds of the other end of the 3rd resistance R 3 and power conversion chip U1.
In another specific embodiment of the present utility model, described bistable electro-magnet drive circuit comprises driving chip O1, transistor Q1 and the 4th resistance R 4, described driving chip O1 is TLP701, described transistor Q1 is MOSFET, drive 1 pin of chip O1 to connect described microprocessor, drive the 6 pin connection+24V DC power supply of chip O1, drive 5 pin of chip O1 to be connected with one end of the 4th resistance R 4, the other end of the 4th resistance R 4 connects the grid of transistor Q1, the drain electrode of transistor Q1 connects described bistable electro-magnet, the source ground of transistor Q1, described bistable electro-magnet drive circuit also comprises the 3rd diode D3 and the 4th diode D4, the negative pole of the negative pole of the 3rd diode D3 and the 4th diode D4 is connected respectively bistable electro-magnet, the positive pole of the positive pole of the 3rd diode D3 and the 4th diode D4 is connected respectively described control device.
In another specific embodiment of the present utility model, described bistable electro-magnet is two coil configuration, comprise forward electromagnet coil L2 and reverse electromagnet coil L3, one end of described forward electromagnet coil L2 and oppositely one end of electromagnet coil L3 are connected to the drain electrode of the transistor Q1 of described bistable electro-magnet drive circuit jointly, the other end of forward electromagnet coil L2 is connected with the negative pole of the 4th diode D4 of bistable electro-magnet drive circuit, and oppositely the other end of electromagnet coil L3 is connected with the negative pole of the 3rd diode D3.
Of the present utility model, also have in a specific embodiment, described signal sample circuit comprises the 5th diode D5, the 5th resistance R 5 and the 6th resistance R 6, the positive pole of the 5th described diode D5 connects described control device, the negative pole of the 5th diode D5 connects one end of the 6th resistance R 6, the other end of the 6th resistance R 6 connects one end of the 5th resistance R 5 and described microprocessor, the other end ground connection of the 5th resistance R 5.
More of the present utility model and in a specific embodiment, the circuit structure of described power supply sample circuit is identical with the circuit structure of described signal sample circuit.
The utility model has been owing to having adopted said structure, compared with prior art, and the beneficial effect having: the 1. commutation control module circuit design described in is simple; 2. when commutation control module is in forward position, and during control device input forward control signal, commutation control module can identify current forward position by power supply sample circuit and forbid that bistable electro-magnet moves, thereby can prevent that bistable electro-magnet from making the phenomenon of coil electricity occur again, can extend thus product useful life; 3. because forward and reverse auxiliary contact is connected with the electromagnet of switching device, when commutation control module is during in forwards/reverse position, the forwards/reverse control signal that control device provides can make switching device without time delay move, thereby shortened, send the time that controls signal to major loop closure.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present utility model.
Fig. 2 is the electrical schematic diagram of power-switching circuit.
Fig. 3 is the electrical connection schematic diagram of bistable electro-magnet drive circuit and bistable electro-magnet.
Fig. 4 is the electrical schematic diagram of signal sample circuit.
Fig. 5 is the theory diagram of prior art.
Embodiment
Applicant will describe in detail embodiment of the present utility model below by reference to the accompanying drawings; but applicant is not the restriction to technical scheme to the description of embodiment, anyly according to the utility model design, changes in the form rather than substance all and should be considered as protection range of the present utility model.
Refer to Fig. 1, a kind of commutation control module, the inlet wire side of described commutation control module 10 is connected with switching device 30, and the outgoing line side of commutation control module 10 is connected with motor M and control device 40 respectively.The controlled device 40 of commutation control module 10 controls and 30 couples of motor M of union switch device implement switch operation.Switching device 30 for connecting, the electric current of carrying and disjunction inflow motor M, commutation control module 10 is for the forward and reverse of switching motor M.The multipole switch contact 32 that described switching device 30 comprises electromagnet 31 and controlled by electromagnet 31, the input of described multipole switch contact 32 connects outside three phase mains.The inverting module change over contact 19 that described commutation control module 10 comprises electronic control circuit 11 and controlled by electronic control circuit 11, the input of described inverting module change over contact 19 is connected with the output of the multipole switch contact 32 of switching device 30, and the output of inverting module change over contact 19 is connected to motor M.Described electronic control circuit 11 comprises microprocessor 17, for conversion control device 40, just send, reverse control command the signal after conversion is delivered to the signal sample circuit 12 of microprocessor 17, the bistable electro-magnet drive circuit 14 that controlled by microprocessor 17, the bistable electro-magnet 15 being driven by bistable electro-magnet drive circuit 14, the forward and reverse auxiliary contact 18 that is subject to bistable electro-magnet 15 controls and links with inverting module change over contact 19, for changing the power supply signal of forward and reverse auxiliary contact 18 outputs and the signal after conversion being delivered to the power supply sample circuit 16 of microprocessor 17 and for microprocessor 17 and bistable electro-magnet drive circuit 14 being provided to the power-switching circuit 13 of power supply.Described microprocessor 17 can be single-chip microcomputer R8C/1B, its in this embodiment control program used can from prior art, obtain, specific implementation is circumscribed not, omits herein and repeats.Described microprocessor 17 respectively with the output of signal sample circuit 12, the signal input part of an output of power-switching circuit 13, bistable electro-magnet drive circuit 14 and the output of power supply sample circuit 16 be connected.Another output of power-switching circuit 13 is connected with bistable electro-magnet drive circuit 14, and the output of bistable electro-magnet drive circuit 14 is connected with bistable electro-magnet 15.The input of power supply sample circuit 16 is connected with the common port of forward and reverse auxiliary contact 18, the one end that forms the commutation A13 terminals of control module 10 and the electromagnet 31 of switching device 30 is connected, the other end of electromagnet 31 is connected with the earth terminal of power-switching circuit 13, form the reference ground terminals N of commutation control module 10, the N line (zero line) of the power-supply system that in the present embodiment, described reference ground terminals N accesses with control device 40 is connected.Forward and reverse auxiliary contact 18 is used to electromagnet 31 that power supply is provided.The positive output end of forward and reverse auxiliary contact 18 is connected with a power input of a signal input part of signal sample circuit 12, a power input of power-switching circuit 13 and bistable electro-magnet drive circuit 14, form the A1 terminals of commutation control module 10, and be connected with described control device 40 as forward control end; The anti-output of forward and reverse auxiliary contact 18 is connected with another power input of another signal input part of signal sample circuit 12, power-switching circuit 13 and another power input of bistable electro-magnet drive circuit 14, form the A3 terminals of commutation control module 10, and be connected with control device 40 as reverse control end.Described control device 40 consists of change over switch 41, and described change over switch 41 has a common port, a forward starting end, stops end and a back-to-back starting end.Described common port connects power supply L line (live wire), described forward starting end is connected with the A1 terminals of described commutation control module 10, for carrying power supply signal and forward control signal to commutation control module 10, described back-to-back starting end is connected with the A3 terminals of commutation control module 10, for delivery of power supply signal and reverse control signal, described stopping held unsettled.
Refer to Fig. 2, described power-switching circuit 13 comprises rectifier bridge B1, power supply chip IC1, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the first capacitor C 1, the first electrochemical capacitor E1, the second electrochemical capacitor E2, the first diode D1, the second diode D2, the first inductance L 1 and power conversion chip U1, wherein, described power supply chip IC1 adopts LNK305, and power conversion chip U1 adopts L78L05.Two input 1,2 pin of described rectifier bridge B1 connect AC230V AC power, and in the present embodiment, an input of rectifier bridge B1 connects described control device 40, another input connects power supply N line, can obtain AC230V AC power thus.Positive output end 3 pin of rectifier bridge B1 connect 5 pin of power supply chip IC1, 1 pin of power supply chip IC1 and 2 pin, 7 pin and 8 pin connect, and one end of common and the first capacitor C 1, one end of the second resistance R 2, the negative pole of the second electrochemical capacitor E2, the negative pole of one end of the first inductance L 1 and the first diode D1 connects, the other end of the first capacitor C 1 connects 3 pin of power supply chip IC1, 4 pin of the other end of the second resistance R 2 and power supply chip IC1, one end of the negative pole of the first electrochemical capacitor E1 and the first resistance R 1 connects, the other end of the positive pole of the first electrochemical capacitor E1 and the first resistance R 1, the negative pole of anodal and the second diode D2 of the second electrochemical capacitor E2 connects, the other end of the positive pole of the second diode D2 and the first inductance L 1, 3 pin of one end of the 3rd resistance R 3 and power conversion chip U1 connect, 1 pin of power conversion chip U1 is as an output output+5V DC power supply of power-switching circuit 13, negative output terminal 4 pin of rectifier bridge B1, the positive pole of the first diode D1, the 2 pin common grounds of the other end of the 3rd resistance R 3 and power conversion chip U1.Wherein, power supply chip IC1, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the first capacitor C 1, the first electrochemical capacitor E1, the second electrochemical capacitor E2, the first diode D1, the second diode D2 and and the first inductance L 1 form a Switching Power Supply, to provide+24V of the 3 pin DC power supply of power conversion chip U1, described+24V DC power supply is another output of power-switching circuit 13.The first described capacitor C 1 is shunt capacitance, the first diode D1 is fly-wheel diode, the 3rd resistance R 3 is dummy load, the first resistance R 1 is feedback resistance, the first electrochemical capacitor E1 is soft electric capacity, the second resistance R 2 is feedback reference resistance, and the second diode D2 is feedback diode, and the second electrochemical capacitor E2 is feedback capacity.+ 5V DC power supply is microprocessor 17 power supplies, and+24V DC power supply is 14 power supplies of bistable electro-magnet drive circuit.
Refer to Fig. 3, described bistable electro-magnet drive circuit 14 comprises driving chip O1, transistor Q1 and the 4th resistance R 4, and wherein, described driving chip O1 is TLP701, and described transistor Q1 is MOSFET.Drive 1 pin of chip O1 as the described microprocessor 17 of signal input part connection of bistable electro-magnet drive circuit 14, drive the 6 pin connection+24V DC power supply of chip O1, drive 5 pin of chip O1 to be connected with one end of the 4th resistance R 4, the other end of the 4th resistance R 4 connects the grid of transistor Q1, the drain electrode of transistor Q1 connects described bistable electro-magnet 15, the source ground of transistor Q1 as the output of bistable electro-magnet drive circuit 14.In the present embodiment, described bistable electro-magnet 15 is two coil configuration, comprises forward electromagnet coil L2 and reverse electromagnet coil L3.The drain electrode of transistor Q1 is connected with one end of forward electromagnet coil L2 and one end of reverse electromagnet coil L3.Described bistable electro-magnet drive circuit 14 also comprises the 3rd diode D3 and the 4th diode D4, the negative pole of the 3rd diode D3 connects the other end of the reverse electromagnet coil L3 of bistable electro-magnet 15, the negative pole of the 4th diode D4 connects the other end of forward electromagnet coil L2, and the positive pole of the positive pole of the 3rd diode D3 and the 4th diode D4 is connected with described control device 40 as two power inputs of bistable electro-magnet drive circuit 14 respectively.Particularly, the positive pole of the 3rd diode D3 connects the back-to-back starting end of change over switch 41, the positive pole of the 4th diode D4 connects the forward starting end of change over switch 41, forward and reverse control power supply after the 3rd diode D3, the 4th diode D4 halfwave rectifier for bistable electro-magnet 15 provides DC power supply.Microprocessor 17 sends pwm signal, through drive chip O1 by+5V voltage transitions for+24V voltage inputs to the grid of transistor Q1, realize the copped wave of bistable electro-magnet 15 coil voltages controlled, the 4th resistance R 4 is current-limiting resistance.
Refer to Fig. 4, described signal sample circuit 12 is for gathering forward and reverse control signal, and this sentences and gathers forward control signal is that example describes.Signal adopts circuit 12 to comprise the 5th diode D5, the 5th resistance R 5 and the 6th resistance R 6, the positive pole of the 5th described diode D5 connects the forward starting end of the change over switch 41 in described control device 40 as a signal input part of signal sample circuit 12, the negative pole of the 5th diode D5 connects one end of the 6th resistance R 6, the other end of the 6th resistance R 6 connects one end of the 5th resistance R 5 and as the output of signal sample circuit 12, connects the other end ground connection of described microprocessor 17, the five resistance R 5.The forward control signal of control device 40 output is exported an analog voltage sampled signal and is sent to microprocessor 17 after the 5th diode D5 one-way commutation and the 5th resistance R 5, the 6th resistance R 6 dividing potential drops.The circuit structure and the principle that gather reverse control signal are identical with said process, and omission repeats.In the present embodiment, the circuit structure of described power supply sample circuit 16 and principle are also identical with signal sample circuit 12.
Please continue to refer to Fig. 1, and in conjunction with Fig. 2 to Fig. 4, operation principle of the present utility model is described.Suppose that commutation control module 10 is in reverse position, if the common port of change over switch 41 is connected with forward starting end, power supply is by A1 terminals input commutation control module 10, microprocessor 17 detects forward control signal by signal sample circuit 12, simultaneously because forward and reverse auxiliary contact 18 is in reverse position, therefore the A13 terminals that microprocessor 17 detects commutation control module 10 by power supply sample circuit 16 are non-transformer now, thereby controlling bistable electro-magnet drive circuit 14 drives bistable electro-magnet 15 to make forward coil electricity, bistable electro-magnet 15 is controlled inverting module change over contact 19 and is switched to forward position from reverse position, realize thus forward and reverse position handover operation of commutation control module 10.On the other hand, now forward and reverse auxiliary contact 18 also switches to forward position from reverse position, and power supply exports the electromagnet 31 of switching device 30 to through forward and reverse auxiliary contact 18 from A1 terminals, and electromagnet 31 obtains electric adhesive, control multipole switch contact 32 closures, motor M starts forward running; Power supply is electromagnet 31 power supplies by forward and reverse auxiliary contact 18.When commutation control module 10 is in forward position, it is similar to the above that control device 40 sends the operation principle of reverse control signal, repeats no more.
Again, suppose that commutation control module 10 is in forward position, if the common port of change over switch 41 is connected with forward starting end, power supply is by A1 terminals input commutation control module 10, microprocessor 17 detects forward control signal by signal sample circuit 12, simultaneously because forward and reverse auxiliary contact 18 is in forward position, therefore the A13 terminals that microprocessor 17 detects commutation control module 10 by power supply sample circuit 16 now have power supply, then by bistable electro-magnet drive circuit 14, forbid bistable electro-magnet 15 actions, the forward position of control module 10 of making to commutate remains unchanged, thereby can prevent that bistable electro-magnet 15 from making the phenomenon of coil electricity occur again.On the other hand, now power supply exports the electromagnet 31 of switching device 30 to through forward and reverse auxiliary contact 18 from A1 terminals, and electromagnet 31 obtains electric adhesive, controls multipole switch contact 32 closures, and motor M does forward running; Power supply is electromagnet 31 power supplies by forward and reverse auxiliary contact 18.When commutation control module 10 is in reverse position, it is similar to the above that control device 40 sends the operation principle of reverse control signal, repeats no more.Commutation control module 10 is connected with the electromagnet 31 of switching device 30 by forward and reverse auxiliary contact 18, when commutation control module 10 is during in forwards/reverse position, control device 40 input forwards/reverse control signals, can make switching device 30 without time delay move, thereby shortened, send the time that controls signal to major loop closure.
It should be noted that in addition: 10 couples of motor M of commutation control module carry out forward and backward and switch and need in the situation that switching device 30 disconnects, just can carry out.Suppose that commutation control module 10 is in forward position, the controlled device 40 of switching device 30 is controlled in closure state, and the common port of change over switch 41 is connected with forward starting end, and now motor M is in forward running status.If now need motor M to carry out inverted running, need by change over switch 41 common ports with stop end being connected, 10 power-off of commutation control module, electromagnet 31 dead electricity of Simultaneous Switching device 30, be subject to after multipole switch contact 32 disconnections of electromagnet 31 controls, again the common port of change over switch 41 is connected with back-to-back starting end, carries out back-to-back starting control.Otherwise cannot switch to inverted running.
Claims (7)
1.
a kind of commutation control module, the described controlled device of commutation control module (10) (40) is controlled and is connected and does teamwork with switching device (30), the multipole switch contact (32) that described switching device (30) comprises electromagnet (31) and controlled by electromagnet (31), the input of described multipole switch contact (32) connects external power source, the inverting module change over contact (19) that described commutation control module (10) comprises electronic control circuit (11) and controlled by electronic control circuit (11), the input of described inverting module change over contact (19) is connected with the output of the multipole switch contact (32) of switching device (30), the output of inverting module change over contact (19) is connected to motor M, it is characterized in that: described electronic control circuit (11) comprises microprocessor (17), for conversion control device (40), just send, reverse control signal is also delivered to the signal sample circuit (12) of microprocessor (17) by the signal after conversion, the bistable electro-magnet drive circuit (14) that controlled by microprocessor (17), the bistable electro-magnet (15) being driven by bistable electro-magnet drive circuit (14), the forward and reverse auxiliary contact (18) that is subject to bistable electro-magnet (15) control and links with inverting module change over contact (19), be used for changing the power supply signal of forward and reverse auxiliary contact (18) output and the signal after conversion delivered to the power supply sample circuit (16) of microprocessor (17) and for microprocessor (17) and bistable electro-magnet drive circuit (14) being provided to the power-switching circuit (13) of power supply, described microprocessor (17) respectively with signal sample circuit (12), power-switching circuit (13), bistable electro-magnet drive circuit (14) and power supply sample circuit (16) connect, power-switching circuit (13) is connected with bistable electro-magnet drive circuit (14), bistable electro-magnet drive circuit (14) is connected with bistable electro-magnet (15), power supply sample circuit (16) is connected to one end of the electromagnet (31) of switching device (30) jointly after being connected with the common port of forward and reverse auxiliary contact (18), after the other end of electromagnet (31) is connected with power-switching circuit (13) to the reference ground terminals N of the control module that commutates (10), forward and reverse auxiliary contact (18) just, anti-output, signal sample circuit (12), power-switching circuit (13) and bistable electro-magnet drive circuit (14) are connected with control device (40) respectively.
2.
a kind of commutation control module according to claim 1, it is characterized in that described control device (40) consists of change over switch (41), described change over switch (41) has a common port, one forward starting end, one stops end and a back-to-back starting end, described common port connects power supply, the positive output end of described forward starting end and described forward and reverse auxiliary contact (18), signal sample circuit (12), power-switching circuit (13) and bistable electro-magnet drive circuit (14) connect, the anti-output of described back-to-back starting end and forward and reverse auxiliary contact (18), signal sample circuit (12), power-switching circuit (13) and bistable electro-magnet drive circuit (14) connect, described stop holding unsettled.
3.
a kind of commutation control module according to claim 1, is characterized in that described power-switching circuit (13) comprises rectifier bridge B1, power supply chip IC1, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the first capacitor C 1, the first electrochemical capacitor E1, the second electrochemical capacitor E2, the first diode D1, the second diode D2, the first inductance L 1 and power conversion chip U1, described power supply chip IC1 adopts LNK305, power conversion chip U1 adopts L78L05, two inputs of described rectifier bridge B1 connect AC power, the positive output end of rectifier bridge B1 connects 5 pin of power supply chip IC1,1 pin of power supply chip IC1 and 2 pin, 7 pin and 8 pin connect, and one end of common and the first capacitor C 1, one end of the second resistance R 2, the negative pole of the second electrochemical capacitor E2, the negative pole of one end of the first inductance L 1 and the first diode D1 connects, and the other end of the first capacitor C 1 connects 3 pin of power supply chip IC1,4 pin of the other end of the second resistance R 2 and power supply chip IC1, one end of the negative pole of the first electrochemical capacitor E1 and the first resistance R 1 connects, the other end of the positive pole of the first electrochemical capacitor E1 and the first resistance R 1, the negative pole of anodal and the second diode D2 of the second electrochemical capacitor E2 connects, the other end of the positive pole of the second diode D2 and the first inductance L 1, 3 pin of one end of the 3rd resistance R 3 and power conversion chip U1 connect, and output+24V DC power supply, the 1 pin output+5V DC power supply of power conversion chip U1, the negative output terminal of rectifier bridge B1, the positive pole of the first diode D1, the 2 pin common grounds of the other end of the 3rd resistance R 3 and power conversion chip U1.
4.
a kind of commutation control module according to claim 1, it is characterized in that described bistable electro-magnet drive circuit (14) comprises driving chip O1, transistor Q1 and the 4th resistance R 4, described driving chip O1 is TLP701, described transistor Q1 is MOSFET, drive 1 pin of chip O1 to connect described microprocessor (17), drive the 6 pin connection+24V DC power supply of chip O1, drive 5 pin of chip O1 to be connected with one end of the 4th resistance R 4, the other end of the 4th resistance R 4 connects the grid of transistor Q1, the drain electrode of transistor Q1 connects described bistable electro-magnet (15), the source ground of transistor Q1, described bistable electro-magnet drive circuit (14) also comprises the 3rd diode D3 and the 4th diode D4, the negative pole of the negative pole of the 3rd diode D3 and the 4th diode D4 is connected respectively bistable electro-magnet (15), the positive pole of the positive pole of the 3rd diode D3 and the 4th diode D4 is connected respectively described control device (40).
5.
a kind of commutation control module according to claim 4, it is characterized in that described bistable electro-magnet (15) is two coil configuration, comprise forward electromagnet coil L2 and reverse electromagnet coil L3, one end of described forward electromagnet coil L2 and oppositely one end of electromagnet coil L3 are connected to the drain electrode of the transistor Q1 of described bistable electro-magnet drive circuit (14) jointly, the other end of forward electromagnet coil L2 is connected with the negative pole of the 4th diode D4 of bistable electro-magnet drive circuit (14), oppositely the other end of electromagnet coil L3 is connected with the negative pole of the 3rd diode D3.
6.
a kind of commutation control module according to claim 1, it is characterized in that described signal sample circuit (12) comprises the 5th diode D5, the 5th resistance R 5 and the 6th resistance R 6, the positive pole of the 5th described diode D5 connects described control device (40), the negative pole of the 5th diode D5 connects one end of the 6th resistance R 6, the other end of the 6th resistance R 6 connects one end of the 5th resistance R 5 and described microprocessor (17), the other end ground connection of the 5th resistance R 5.
7.
a kind of commutation control module according to claim 1, the circuit structure of the power supply sample circuit (16) described in it is characterized in that is identical with the circuit structure of described signal sample circuit (12).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420356543.2U CN203933487U (en) | 2014-06-30 | 2014-06-30 | A kind of commutation control module |
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| CN201420356543.2U CN203933487U (en) | 2014-06-30 | 2014-06-30 | A kind of commutation control module |
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| CN203933487U true CN203933487U (en) | 2014-11-05 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110198163A (en) * | 2019-05-23 | 2019-09-03 | 宁波华元机械科技有限公司 | It is a kind of can self-test magnetic induction electronic bistable switch |
| CN110635743A (en) * | 2018-06-25 | 2019-12-31 | 建准电机工业股份有限公司 | Steering control system for three-phase motor |
| CN113433842A (en) * | 2021-06-24 | 2021-09-24 | 威海新北洋技术服务有限公司 | Unlocking control circuit and equipment |
-
2014
- 2014-06-30 CN CN201420356543.2U patent/CN203933487U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110635743A (en) * | 2018-06-25 | 2019-12-31 | 建准电机工业股份有限公司 | Steering control system for three-phase motor |
| CN110198163A (en) * | 2019-05-23 | 2019-09-03 | 宁波华元机械科技有限公司 | It is a kind of can self-test magnetic induction electronic bistable switch |
| CN110198163B (en) * | 2019-05-23 | 2023-06-27 | 宁波华元机械科技有限公司 | Magnetic induction electronic bistable switch capable of self-checking |
| CN113433842A (en) * | 2021-06-24 | 2021-09-24 | 威海新北洋技术服务有限公司 | Unlocking control circuit and equipment |
| CN113433842B (en) * | 2021-06-24 | 2022-03-25 | 威海新北洋技术服务有限公司 | Unlocking control circuit and equipment |
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