CN206727915U

CN206727915U - A kind of positive and reverse rotation control circuit of AC-DC brushless motor

Info

Publication number: CN206727915U
Application number: CN201720488114.4U
Authority: CN
Inventors: 陈小阳; 李光明
Original assignee: SHENZHEN HONGFEI ELECTROMECHANICAL TECHNOLOGY Co Ltd
Current assignee: SHENZHEN HONGFEI ELECTROMECHANICAL TECHNOLOGY Co Ltd
Priority date: 2017-05-04
Filing date: 2017-05-04
Publication date: 2017-12-08
Anticipated expiration: 2027-05-04

Abstract

It the utility model is related to a kind of control circuit technical field, especially a kind of positive and reverse rotation control circuit of AC-DC brushless motor, include prograde circuit, circuit for reversing, the composition of the prograde circuit and circuit for reversing is identical with connected mode, the prograde circuit includes current rectifying and wave filtering circuit, drive circuit, the prograde circuit also include reduction voltage circuit, and the reduction voltage circuit includes diode D2, diode D1, BP6513G chip U1.Prograde circuit of the present utility model is equipped with current rectifying and wave filtering circuit, reduction voltage circuit and drive circuit with circuit for reversing, it is depressured by reduction voltage circuit, drive circuit is set to run well, it is simple in construction, operation is simple, the rotation direction of motor is controlled without pass through signal, it is only necessary to which switching on power can be to realize the forward and reverse of motor.In addition, voltage of the present utility model can realize the forward and reverse of motor from the direct current between 12V 260V or alternating current, voltage range is wide.

Description

A kind of positive and reverse rotation control circuit of AC-DC brushless motor

Technical field

A kind of control circuit technical field is the utility model is related to, especially a kind of rotating control of AC-DC brushless motor Circuit processed.

Background technology

Existing alternating current generator, is adapted to carry out mechanical energy and machinery that AC energy is mutually changed, due to alternating electromotive force system The great development of system, alternating current generator turn into the most frequently used motor.

Alternating current generator is compared with direct current generator, due to no commutator, therefore it is simple in construction, it is easily manufactured, than stronger, But traditional AC motor is to operate motor using the mode of switching frequency, such rotating speed will be limited substantially in 2600RPM Left and right.

A kind of existing ac fan of condenser type 12038, realizes positive and negative rotating function, still by the way of start-up capacitance is added It is this at present to realize that positive and negative rotating function has following defect by the way of start-up capacitance using adding：

1：Power consumption is big, and efficiency is low, and addition condenser type, which starts, can be such that cost accordingly improves, it is necessary to use multiple-grooved silicon steel sheet next life Production, and need to prick enamel-covered wire.

2：Production trouble, because cause coiling to bother to produce using the silicon steel sheet of multiple-grooved, and the stator silicon of d.c. motor Steel disc is larger to cause weight larger, it is necessary to which the mode of silicon steel mortice lock screw is fixed, and the rotating of d.c. motor then needs list Only control signal come control inside drive circuit realize rotating.

3 costs are high, and shell raw material are expensive using aluminium alloy making, and are provided with lacquer spraying technique in shell table side.

The content of the invention

To solve the above problems, the utility model provides a kind of positive and reverse rotation control circuit of AC-DC brushless motor, make Cost is low, and exchange can be used with direct current, and voltage range is wide, and service efficiency is high, simple in construction, effectively reduces labor intensity.

To achieve the above object, the technical solution adopted in the utility model is：A kind of rotating of AC-DC brushless motor Control circuit, including prograde circuit, circuit for reversing, the composition of the prograde circuit and circuit for reversing is identical with connected mode, The prograde circuit includes current rectifying and wave filtering circuit, drive circuit, and the prograde circuit also includes reduction voltage circuit, the decompression Circuit includes diode D2, diode D1, BP6513G chip U1, and the positive pole of the diode D1 is connected with drive circuit, institute The negative pole for stating diode D1 is connected by resistance R7 with chip U1 No. 1 pin, and the negative pole of the diode D1 also passes through electric capacity C4 is connected with chip U1 No. 4 pins, and No. 4 pins of the chip U1 pass through resistance R6, resistance R5 and chip U1 No. 3 pins Connection, No. 4 pins of the chip U1 are also connected by resistance R6, inductance L1 with drive circuit, the both ends point of the inductance L1 It is not grounded by diode D2, electric capacity C2, No. 3 pins of the chip U1 are connected by resistance R4 with diode D1 positive pole, No. 8 pins of the chip U1 are connected by electric capacity C3, resistance R3 with rectification filter circuit output end, No. 5 of the chip U1 Pin, No. 6 pins are connected with rectification filter circuit output end.

Preferably, the current rectifying and wave filtering circuit includes MB6S chips Z1, electric capacity C1, the chip Z1 No. 1 pin, 2 Number pin is connected respectively as connection end CW, connection end COM, No. 4 pins of the chip Z1 with reduction voltage circuit input, chip Z1 No. 4 pins are also grounded by electric capacity C1.Similarly, the current rectifying and wave filtering circuit in circuit for reversing includes MB6S chip Z2, and it 1 Number pin, No. 2 pins are respectively as connection end CCW, connection end COM.Wherein, prograde circuit chip Z1 No. 2 pins and reversion Circuit chip Z2 No. 2 pins are used as public connecting end COM by resistance RU exits.

Preferably, the drive circuit includes electric capacity C5, resistance R14, resistance R8, SDC477 chip, coil coil, No. 1 of the SDC477 chips is connected by resistance R8 with reduction voltage circuit, and No. 1 pin of the SDC477 chips also passes through respectively Electric capacity C5, resistance R14 are grounded, and No. 2 pins with SDC477 chips, No. 3 pins are connected respectively at the both ends of the coil coil.

The beneficial effects of the utility model are：

Prograde circuit of the present utility model is equipped with current rectifying and wave filtering circuit, reduction voltage circuit and drive circuit with circuit for reversing, It is depressured by reduction voltage circuit, drive circuit is run well, the connection end of the current rectifying and wave filtering circuit in prograde circuit When CW connects composition loop with connection end COM, realize that motor rotates forward, circuit for reversing does not have loop, in static inoperative state； Similarly, when composition loop is connected with the connection end CCW in prograde circuit structure identical circuit for reversing and connection end COM, realize Motor inverts, and prograde circuit is in static inoperative state, simple in construction, and operation is simple, without controlling motor by signal Rotation direction, it is only necessary to which switching on power can be to realize the forward and reverse of motor.In addition, voltage of the present utility model is from 12V- Direct current or alternating current between 260V can realize the forward and reverse of motor, and voltage range is wide, and service efficiency is high.

Brief description of the drawings

Fig. 1 is the circuit theory diagrams of utility model

Fig. 2 is the structural representation of this specific embodiment

Drawing reference numeral explanation：1：Prograde circuit；2：Circuit for reversing；3：Current rectifying and wave filtering circuit；4：Reduction voltage circuit；5：Driving electricity Road.

Embodiment

Refer to shown in Fig. 1, the utility model on：A kind of positive and reverse rotation control circuit of AC-DC brushless motor, including There are prograde circuit 1, circuit for reversing 2, the composition of the prograde circuit 1 and circuit for reversing 2 is identical with connected mode, described to rotate forward electricity Road 1 includes current rectifying and wave filtering circuit 3, drive circuit 5, and the prograde circuit 1 also includes reduction voltage circuit 4, the reduction voltage circuit 4 Include diode D2, diode D1, BP6513G chip U1, the positive pole of the diode D1 is connected with drive circuit 5, described Diode D1 negative pole is connected by resistance R7 with chip U1 No. 1 pin, and the negative pole of the diode D1 also passes through electric capacity C4 It is connected with chip U1 No. 4 pins, No. 4 pins of the chip U1 are connected by resistance R6, resistance R5 and chip U1 No. 3 pins Connect, No. 4 pins of the chip U1 are also connected by resistance R6, inductance L1 with drive circuit 5, the both ends difference of the inductance L1 It is grounded by diode D2, electric capacity C2, No. 3 pins of the chip U1 are connected by resistance R4 with diode D1 positive pole, institute No. 8 pins for stating chip U1 are connected by electric capacity C3, resistance R3 with the output end of current rectifying and wave filtering circuit 3, and No. 5 of the chip U1 are drawn Pin, No. 6 pins are connected with the output end of current rectifying and wave filtering circuit 3.

Specifically, the current rectifying and wave filtering circuit 3 includes MB6S chips Z1, electric capacity C1, the chip Z1 No. 1 pin, 2 Number pin is connected respectively as connection end CW, connection end COM, No. 4 pins of the chip Z1 with the input of reduction voltage circuit 4, core Piece Z1 No. 4 pins are also grounded by electric capacity C1.Similarly, the current rectifying and wave filtering circuit in circuit for reversing 2 includes MB6S chip Z2, Its No. 1 pin, No. 2 pins are respectively as connection end CCW, connection end COM.Wherein, the chip Z1 of prograde circuit 1 No. 2 pins and The chip Z2 of circuit for reversing 2 No. 2 pins are used as public connecting end COM by resistance RU exits.

Specifically, the drive circuit 5 includes electric capacity C5, resistance R14, resistance R8, SDC477 chip, coil coil, No. 1 of the SDC477 chips is connected by resistance R8 with reduction voltage circuit 4, and No. 1 pin of the SDC477 chips also leads to respectively Electric capacity C5, resistance R14 ground connection are crossed, No. 2 pins with SDC477 chips, No. 3 pins are connected respectively at the both ends of the coil coil.

For existing technology, prograde circuit 1 of the present utility model is equipped with reduction voltage circuit 4 with circuit for reversing 2, It is depressured by reduction voltage circuit 4, drive circuit 5 is run well, is only needed during use prograde circuit 1 and reversion electricity Connection end CW, connection end COM and the connection end CCW on road 2 are connected with motor, it is not necessary to other control signals, it is described to rotate forward electricity When the connection end CW and connection end COM of current rectifying and wave filtering circuit 3 in road 1 connect composition loop, circuit for reversing 2 does not have loop, place In static inoperative state；Similarly, with the connection end CCW and connection end COM in the structure identical circuit for reversing 2 of prograde circuit 1 When connecting composition loop, prograde circuit 1 is in static inoperative state, simple in construction, and operation is simple, without being controlled by signal The rotation direction of motor, it is only necessary to which switching on power can be to realize the forward and reverse of motor.In addition, voltage of the present utility model The forward and reverse of motor can be realized from the direct current between 12V-260V or alternating current, voltage range is wide, service efficiency It is high.

The existing ac fan maximum speed of condenser type 12308 is up to 2650PRM, and maximum quantity of wind is up to 88.34CFM, most Big blast 10.21mmH2Oo, power reach 22.9W, using multiple-grooved coiling, and want binding, maximum production capacity 200PCS/ hours, outside Shell is made using aluminium alloy and carries lacquer spraying technique, and total material is about 20RMB.And the rotating speed of this specific embodiment is reachable 3200RPM, maximum quantity of wind only have 6.5W up to 116.66CFM, maximum wind pressure up to 10.91mmH2o, power, using pcb board, And the groove of 90%SMT operations coiling four uses plastic frame leaf one-shot forming without binding, production capacity 650PCS/ hours, shell on pcb board, Total material cost about 15RMB, exchange commutation rely on supply frequency and are generally 50HZ, contrasted by both, and the utility model uses Frequency is low, the use significantly reduced costs, can be operated simultaneously in the environment of direct current, exchange, adaptation use environment is extensive, thus It can be seen that the positive and reverse rotation control circuit of this AC-DC brushless motor lifts about 30% effect, assembly relative to conventional AC fan delivery This decline about 30%.

Refer to shown in Fig. 2, in this specific embodiment, drive circuit 5 is circumscribed with the coil holder made of silicon steel sheet, online Frame is provided with 4 pins, is L1, L2, L3, L4 respectively.Realize the coil holder in the principle of rotating by silicon steel sheet four PIN needle, coil is met come coiling, right later group enamel-covered wire with two enamel-covered wires, be left that group and meet enamel-covered wire reverse drive coil-1. When line is started to exchange fire with zero line in COM ends and CWW ends respectively, then connection end CW is hanging, and circuit for reversing 2 does not have loop, therefore instead Shifting circuit 2 does not work.When line is started to exchange fire with zero line in COM ends respectively with connection end CW, then CWW ends are hanging, and prograde circuit 1 does not have Loop, therefore prograde circuit 1 does not work；When voltage is DC voltage, operation principle is identical, and can when voltage is less than 60V Not need reduction voltage circuit 4, only retain current rectifying and wave filtering circuit 3 and drive circuit 5 it is achieved that because the driving of single-phase motor As long as the wiring that winding is changed in the case of fixation can be achieved with rotating, reduce raw material and use, when L2 connects No. 2 of IC1 Pin, L1 connect IC1 No. 3 pins, and now to rotate forward, as long as L1 to be connected on to IC2 No. 2 pins, L2 is connected on IC1 No. 3 pins Can becomes to invert.

Embodiment of above is only that preferred embodiment of the present utility model is described, not to the utility model Scope be defined, on the premise of the utility model design spirit is not departed from, this area ordinary skill technical staff is to reality The various modifications made with new technical scheme and improvement, the protection that claims of the present utility model determine all should be fallen into In the range of.

Claims

1. a kind of positive and reverse rotation control circuit of alternating current-direct current AC-DC brushless motor, include prograde circuit, circuit for reversing, it is described just The composition of shifting circuit and circuit for reversing is identical with connected mode, and the prograde circuit includes current rectifying and wave filtering circuit, driving Circuit, it is characterised in that the prograde circuit also includes reduction voltage circuit, and the reduction voltage circuit includes diode D2, two poles Pipe D1, BP6513G chip U1, the positive pole of the diode D1 are connected with drive circuit, and the negative pole of the diode D1 passes through electricity Resistance R7 is connected with chip U1 No. 1 pin, and the negative pole of the diode D1 is also connected by electric capacity C4 and chip U1 No. 4 pins Connect, No. 4 pins of the chip U1 are connected by resistance R6, resistance R5 with chip U1 No. 3 pins, No. 4 of the chip U1 Pin is also connected by resistance R6, inductance L1 with drive circuit, and the both ends of the inductance L1 pass through diode D2, electric capacity C2 respectively Ground connection, No. 3 pins of the chip U1 are connected by resistance R4 with diode D1 positive pole, and No. 8 pins of the chip U1 lead to Cross electric capacity C3, resistance R3 is connected with rectification filter circuit output end, No. 5 pins of the chip U1, No. 6 pins are filtered with rectification Wave circuit output end connects.

2. the positive and reverse rotation control circuit of a kind of AC-DC brushless motor according to claim 1, it is characterised in that described whole Stream filter circuit includes MB6S chips Z1, electric capacity C1, the chip Z1 No. 1 pin, No. 2 pins respectively as connection end CW, connection end COM, No. 4 pins of the chip Z1 are connected with reduction voltage circuit input, and chip Z1 No. 4 pins also pass through electricity Hold C1 ground connection.

A kind of 3. positive and reverse rotation control circuit of AC-DC brushless motor according to claim 1, it is characterised in that the drive Dynamic circuit includes electric capacity C5, resistance R14, resistance R8, SDC477 chip, coil coil, and No. 1 of the SDC477 chips is logical Cross resistance R8 to be connected with reduction voltage circuit, No. 1 pin of the SDC477 chips is also grounded by electric capacity C5, resistance R14 respectively, institute Stating coil coil both ends, No. 2 pins with SDC477 chips, No. 3 pins are connected respectively.