CN211718731U

CN211718731U - Curtain-drawing motor

Info

Publication number: CN211718731U
Application number: CN202020167402.1U
Authority: CN
Inventors: 吴平和
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-13
Filing date: 2020-02-13
Publication date: 2020-10-20
Anticipated expiration: 2030-02-13

Abstract

The utility model provides a draw curtain motor, include: the motor controller is arranged in a mounting groove preset in the motor body; the motor controller comprises a singlechip, a reversing circuit, a voltage transformation circuit, a memory, a phase measurement and control circuit, a digital display circuit, a remote controller circuit and a key circuit; the reversing circuit is connected with the single chip microcomputer and used for controlling the motor to generate a reversing magnetic field to control the motor to reverse when the motor needs to be reversed; the voltage transformation circuit is connected with the single chip microcomputer, and the phase measurement and control circuit is connected with the single chip microcomputer and used for detecting whether the phase of the externally input alternating current is open; the memory is connected with the singlechip and used for storing control instructions; the digital display circuit is connected with the singlechip and is used for displaying the output data of the singlechip; the remote controller circuit is connected with the single chip microcomputer. The key circuit is connected with the single chip microcomputer.

Description

Curtain-drawing motor

Technical Field

The utility model relates to the technical field of motors, in particular to draw curtain motor.

Background

At present, in the planting and breeding process of a greenhouse, because the length of the greenhouse is longer, the growth period of the greenhouse can be prolonged and the yield can be increased in seasons unsuitable for plant growth, the greenhouse is mainly used for cultivating or breeding plants such as vegetables, flowers and trees which are warm in low-temperature seasons, the variety of the greenhouse is multiple, and the greenhouse can be divided into a great variety according to different roof truss materials, lighting materials, shapes, heating conditions and the like, such as a glass greenhouse and a plastic greenhouse; single-span greenhouses and multi-span greenhouses; single-roof greenhouses, double-roof greenhouses; a warm greenhouse, a non-warm greenhouse, etc. The greenhouse structure should be sealed and insulated, but should be convenient for ventilation and cooling. Greenhouse need pull open greenhouse's covering when the photosynthesis of ventilation, sunshade and plant is carried out again in-service use, if use artifical pulling open covering waste time and energy, consequently, use motor control among the prior art to pull open the covering more. Moreover, the existing curtain pulling motor is mainly connected by seven lines and consists of a power line and a stroke control line, and the curtain pulling motor is manually controlled in the aspect of control, so that time and labor are wasted.

SUMMERY OF THE UTILITY MODEL

The utility model provides a draw curtain motor for the covering that solves warmhouse booth is pulled open and is covered up the use manual work, the condition that wastes time and energy.

A curtain drawing motor, comprising: the motor controller is arranged in a mounting groove preset in the motor body;

the motor controller comprises a singlechip, a reversing circuit, a voltage transformation circuit, a memory, a phase measurement and control circuit, a digital display circuit, a remote controller circuit and a key circuit; wherein the content of the first and second substances,

the reversing circuit is connected with the single chip microcomputer and the three-phase alternating current power supply, and is configured to: when the single chip microcomputer sends a steering instruction, the motor body is controlled to generate a reversing magnetic field so as to control the motor to reverse;

the voltage transformation circuit is connected with the single chip microcomputer, and the voltage transformation circuit is configured to: the voltage transformation circuit is connected with the three-phase alternating current power supply and converts alternating current of the three-phase alternating current power supply into direct current for driving the single chip microcomputer to operate;

the phase measurement and control circuit is connected with the single chip microcomputer, and the phase measurement and control circuit is configured to: the phase measurement and control circuit is connected with the three-phase alternating current power supply, and detects whether the three-phase alternating current power supply is in phase failure or not through a control instruction of the single chip microcomputer;

the memory is connected with the singlechip and used for storing a control instruction for controlling the operation of the motor;

the digital display circuit is connected with the singlechip and is used for displaying the output data of the singlechip;

the remote controller circuit is connected with the single chip microcomputer and used for being externally connected with remote control equipment, and the remote control equipment controls the running condition of the motor through the remote controller circuit and the single chip microcomputer;

the key circuit is connected with the single chip microcomputer and used for controlling the single chip microcomputer to send out a control instruction through the key circuit.

As an embodiment of the present invention: the reversing circuit comprises a first relay and a second relay, the first relay is externally connected with a three-phase power supply, and the first relay is also connected with the second relay; wherein the content of the first and second substances,

one phase of the three-phase power supply is connected with a first relay through a first fuse, and the other phase of the three-phase power supply is connected with a first relay through a second fuse;

the first relay and the second relay are connected with an auxiliary circuit connected with the single chip microcomputer, and the auxiliary circuit is connected with the single chip microcomputer;

the auxiliary circuit of the first relay includes: the circuit comprises a first diode, a first triode, a first resistor and a second resistor; wherein the content of the first and second substances,

the positive electrode and the negative electrode of the first diode are respectively connected to two ends of the first relay, the positive electrode of the first diode is connected with the collector electrode of the first triode, and the emitting set and the base electrode of the first triode are connected through a first resistor and a second resistor which are connected in series;

the auxiliary circuit of the second relay includes: the second diode, the second triode, the third resistor and the fourth resistor; wherein the content of the first and second substances,

the anode and the cathode of the second diode are respectively connected to two ends of the second relay, the anode of the second diode is connected with the collector of the second triode, and the emitter and the base of the second triode are connected through a third resistor and a fourth resistor which are connected in series;

the first relay is provided with three normally open contacts, the second relay is provided with two normally open contacts, the first diode and the second diode are fast recovery diodes, and the first triode and the second triode are N-channel enhanced network field effect transistors.

As an embodiment of the present invention: the voltage transformation circuit comprises: the device comprises a transformer, a rectifier bridge, a voltage stabilizer and a first photoelectric coupler; wherein the content of the first and second substances,

the output end of the transformer is connected with the input end of the rectifier bridge, and the output end of the rectifier bridge is respectively connected with the voltage stabilizer and the first photoelectric coupler;

the rectifier bridge is connected with the voltage stabilizer through a third fuse, and a third fuse, a Zener diode and a fifth resistor are connected between the rectifier bridge and the first photoelectric coupler; the output end of the rectifier bridge is connected with a first capacitor and a first fine tuning capacitor in parallel;

the output end of the voltage stabilizer is also grounded through a direct connection Schottky diode, and the output end of the voltage stabilizer is respectively connected with the second fine tuning capacitor and the third fine tuning capacitor through the first inductor and grounded; the output end of the voltage stabilizer is connected with a seventh resistor and an eighth resistor which are connected in series through a first inductor and is grounded, wherein the eighth resistor is connected with a third capacitor in parallel;

and the output end of the first photoelectric coupler is connected with a sixth resistor and a second capacitor.

As an embodiment of the present invention: the phase measurement and control circuit comprises: the second photoelectric coupler, the third diode, the ninth resistor, the tenth resistor, the fourth diode, the thirteenth resistor, the fourth capacitor, the fifth capacitor, the third photoelectric coupler, the fifth diode, the sixth diode, the twelfth resistor, the eleventh resistor and the fourteenth resistor; wherein the content of the first and second substances,

the positive input end of the second photoelectric coupler is connected with a third diode and a ninth resistor which are connected in series, the negative input end of the second photoelectric coupler is connected with a tenth resistor, and the positive input end and the negative input end of the second photoelectric coupler are connected with a fourth diode in parallel; the output end of the second photoelectric coupler is connected with a thirteenth resistor and a fourth capacitor;

the positive input end of the third photoelectric coupler is connected with a fifth diode and a twelfth resistor which are connected in series, the negative input end of the third photoelectric coupler is connected with an eleventh resistor, and the positive input end and the negative input end of the third photoelectric coupler are connected with a sixth diode in parallel; and the output end of the third photoelectric coupler is connected with a fourteenth resistor and a fifth capacitor.

As an embodiment of the present invention: the digital display circuit comprises a nixie tube, a current limiting resistor and an auxiliary circuit, wherein the current limiting resistor and the auxiliary circuit are connected with the nixie tube,

the input end and the output end of the nixie tube are both connected with a current limiting resistor;

the nixie tube further comprises a plurality of DIG output ends, and the plurality of DIG output ends are respectively connected with the NPN type silicon tubes; wherein the content of the first and second substances,

the base electrode and the emitting electrode of the NPN type silicon tube are connected through two resistors connected in series.

As an embodiment of the present invention: the remote controller circuit includes: the decoder, the MOS field effect transistor, the wire connector, the fifteenth resistor and the sixteenth resistor; wherein the content of the first and second substances,

the source electrode and the grid electrode of the MOS field effect transistor are connected with a fifteenth resistor and a sixteenth resistor in series;

and the fifteenth resistor and the sixteenth resistor are also connected with an NPN type silicon tube, and the base electrode and the emitter electrode of the NPN type silicon tube are connected through resistors connected in series.

The drain electrode of the MOS field effect transistor is connected with a wire connector, and the wire connector is also connected with the base electrodes of a plurality of NPN type silicon transistors through resistors.

As an embodiment of the present invention: the key circuit includes: a key extender and an auxiliary circuit; wherein the content of the first and second substances,

the key expander is connected with a plurality of auxiliary circuits, each auxiliary circuit comprises a plurality of NPN type silicon tubes, and bases and emitters of the NPN type silicon tubes are connected through resistors connected in series; the collector electrodes of the NPN type silicon tubes are connected with the single chip microcomputer, and the collector electrodes of the NPN type silicon tubes are grounded through resistors.

As an embodiment of the present invention: the single chip microcomputer, the reversing circuit, the voltage transformation circuit, the memory, the phase measurement and control circuit, the digital display circuit, the remote controller circuit and the key circuit are sealed through glue pouring.

The beneficial effects of the utility model reside in that: the utility model discloses be used in warmhouse booth, mainly used control pulls open warmhouse booth's covering or cover the covering on the greenhouse strong breeze. Have energy-concerving and environment-protective effect, the utility model discloses use 7 line limit control with traditional control and compare this motor and only need 3 power cords, 1 grounding wire has still saved special electrical control box, has practiced thrift the cost for vast customers greatly.

The debugging is convenient and labor-saving: in the past, 2 electrical engineers are required to be matched up and down for debugging the motor, the debugging can be carried out by only holding a remote controller by 1 hand, the debugging is convenient and visual (direct display of a nixie tube), and a lot of mechanical operations are omitted.

The whole glue filling and sealing treatment of the control circuit is high in safety and reliability, and is more reliable compared with a traditional limit switch.

Three 380V power cords need not survey the direct access of phase sequence, and the default output phase sequence of circuit, and the motor can not appear reversing the phenomenon of drawing the net because the wiring problem, and is safer.

The system can be incorporated into the Internet of things, and is convenient for the mobile phone end of an owner to control in real time.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

The technical solution of the present invention is further described in detail by the accompanying drawings and examples.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic diagram of an embodiment of the present invention;

fig. 2 is a commutation circuit in an embodiment of the present invention;

fig. 3 is a voltage transformation circuit according to an embodiment of the present invention;

FIG. 4 shows an embodiment of a memory and its peripheral circuits;

fig. 5 is a phase measurement and control circuit in the embodiment of the present invention;

FIG. 6 is a digital display circuit according to an embodiment of the present invention;

fig. 7 is a circuit of the remote controller according to an embodiment of the present invention;

fig. 8 is a key circuit according to an embodiment of the present invention.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

As shown in figure 1: a curtain drawing motor includes: the motor controller is arranged in a mounting groove preset in the motor body; the mounting groove of the motor body is arranged to be the same as a rectangular groove of a motor controller in the prior art, and the shape of the mounting groove can be designed to be circular, rectangular or prismatic according to actual requirements based on the design of the motor controller.

the singlechip can be connected with the internet, and the whole curtain drawing motor is controlled through the intelligent mobile terminal.

The reversing circuit is connected with the single chip microcomputer and the three-phase alternating current power supply, and is configured to: when the single chip microcomputer sends a steering instruction, the motor is controlled to generate a reversing magnetic field so as to control the motor to reverse;

as shown in fig. 4, the memory is connected to the single chip for storing control instructions; the memory is a volatile memory FM, and a data storage end of the volatile memory FM is externally connected with a resistor and a voltage which are connected in parallel.

As an embodiment of the present invention: as shown in fig. 2, the reversing circuit comprises a first relay KA1 and a second relay KA2, the first relay KA1 is externally connected with a three-phase power supply P1, and the first relay KA1 is also connected with the second relay KA 2; wherein the content of the first and second substances,

the first relay KA1 and the second relay KA2 are both connected with an auxiliary circuit connected with the single chip microcomputer, and the auxiliary circuit is used for receiving a control instruction of the single chip microcomputer.

The auxiliary circuit of the first relay KA1 includes: the circuit comprises a first diode D1, a first triode Q1, a first resistor R1 and a second resistor R2; wherein the content of the first and second substances,

the positive electrode and the negative electrode of the first diode D1 are respectively connected to two ends of the first relay KA1, the positive electrode of the first diode D1 is connected with the collector electrode of a first triode Q1, and the emitting set and the base electrode of the first triode Q1 are connected through a first resistor R1 and a second resistor R2 which are connected in series; the first relay KA1 outputs a phase power supply through the control instruction of the single chip microcomputer. The first relay KA1 receives a first control signal of the single chip microcomputer.

The auxiliary circuit of the second relay KA2 includes: the second diode D2, the second triode Q2, the third resistor R3 and the fourth resistor R4; wherein the content of the first and second substances,

the anode and the cathode of the second diode D2 are respectively connected to two ends of the second relay KA2, the anode of the second diode D2 is connected to the collector of the second triode Q2, and the emitter and the base of the second triode Q2 are connected through a third resistor R3 and a fourth resistor R4 which are connected in series. And the second relay KA2 receives a second control signal of the singlechip.

The first relay KA1 has three normally open contacts, the second relay KA2 has two normally open contacts, the first diode D1 and the second diode D2 are fast recovery diodes, and the first triode Q1 and the second triode Q2 are N-channel enhanced network field effect transistors. The first relay KA1 and the second relay KA2 realize the reversing control of the motor through different control signals and different contact modes;

when the first relay KA1 is externally connected with a three-phase power supply P1, a two-phase power supply in the three-phase power supply is connected with a second fuse FU2 through a first fuse FU 1. To prevent current overflow or circuit damage due to excessive voltage.

The principle of the utility model lies in: the reversing circuit realizes the reversing of the motor through the control instruction of the singlechip; first relay KA1 passes through the first relay control signal of auxiliary circuit's receipt in the switching-over circuit, and second relay KA2 passes through auxiliary circuit's receipt second relay control signal, and first relay KA1 and second relay KA2 are connected, and the switching-over of motor is realized to the mutually supporting effect.

The beneficial effects of the utility model reside in that: when the reversing control is realized by the two relays, the first relay KA1 only has three input ends, so that the limiting control of the motor can be realized by three power supply wires and one grounding wire; compared with the prior art, the number of lines connected with the input end is reduced, and meanwhile, two relays are matched to realize reversing without installing a plurality of travel switches. In view of the synthesis, the electric wire and the travel switch are saved, and the control reversing of the relay is controlled by the single chip microcomputer, so that the control reversing is more stable.

As an embodiment of the present invention: as shown in fig. 3, the transformer circuit includes: the transformer L, the rectifier bridge A, the voltage stabilizer U and the first photoelectric coupler OP 1; wherein the content of the first and second substances,

the output end of the transformer L is connected with the input end of the rectifier bridge A, and the output end of the rectifier bridge A is respectively connected with the voltage stabilizer U and the first photoelectric coupler OP 1;

the rectifier bridge A is connected with the voltage stabilizer U through a third fuse FU3, and a third fuse FU3, a Zener diode DT and a fifth resistor R5 are connected between the rectifier bridge A and the first photoelectric coupler OP; the output end of the rectifier bridge A is connected with a first capacitor C1 and a first trimming capacitor CT1 in parallel;

the output end of the voltage stabilizer U is also grounded through a direct connection Schottky diode DX, and the output end of the voltage stabilizer U is respectively connected with the second trimming capacitor CT2 and the third trimming capacitor CT3 through a first inductor I and grounded; the output end of the voltage stabilizer U is connected with a seventh resistor R7 and an eighth resistor R8 which are connected in series through a first inductor I and is grounded, wherein a third capacitor C3 is connected in parallel to the eighth resistor R8;

and the output end of the first photoelectric coupler OP1 is connected with a sixth resistor R6 and a second capacitor R2 for realizing filtering and current limiting.

The principle of the utility model lies in: the transformation circuit of the utility model firstly transforms the voltage through the transformer L, and the alternating current after transformation is rectified through the rectifier bridge A to obtain the direct current; the direct current is connected with a voltage stabilizer U through a third fuse FU3 to realize the voltage stabilization; the output end of the rectifier bridge A is connected with a first capacitor C1 and a first trimming capacitor CT1 in parallel to realize filtering and adjustment of resonant frequency; the stabilized voltage is limited through a first inductor I, a seventh resistor R7 and an eighth resistor R8; and the resonant frequency of the current behind the first inductor I is adjusted through the second trimming capacitor CT2 and the third trimming capacitor CT 3. The output end of the first photoelectric coupler OP1 is connected with a sixth resistor R6 and a second capacitor R2 for realizing filtering and current limiting.

The beneficial effects of the utility model reside in that: the utility model discloses a pass through the alternating current to the input operation steps such as vary voltage, rectification, steady voltage, filtering, resonant frequency fine setting, but the alternating current adjustment of input is the stable direct current of exportable for realize the work of drive singlechip and other devices.

As an embodiment of the present invention: as shown in fig. 5, the phase measurement and control circuit includes: a second photo coupler OP2, a third diode D3, a ninth resistor R9, a tenth resistor R10, a fourth diode D4, a thirteenth resistor R13, a fourth capacitor C4, a fifth capacitor C5, a third photo coupler OP3, a fifth diode D5, a sixth diode D6, a twelfth resistor R12, an eleventh resistor R11, and a fourteenth resistor R14; wherein the content of the first and second substances,

a third diode D3 and a seventh resistor R7 which are connected in series are connected to the positive input end of the second photoelectric coupler OP2, an eighth resistor R8 is connected to the negative input end of the second photoelectric coupler OP2, and a fourth diode D4 is connected in parallel to the positive input end and the negative input end of the second photoelectric coupler OP 2; the output end of the second photocoupler OP2 is connected with a ninth resistor R9 and a fourth capacitor C4. Second photocoupler OP2

A fifth diode D5 and a tenth resistor R10 which are connected in series are connected to the positive input end of the third photocoupler OP3, an eleventh resistor R11 is connected to the negative input end of the third photocoupler OP3, and a sixth diode D6 is connected in parallel to the positive input end and the negative input end of the third photocoupler OP 3; the output end of the third photocoupler OP3 is connected with a twelfth resistor R12 and a fifth capacitor C5.

The principle of the utility model lies in: through two photoelectric couplers, one of three alternating current power supplies of a three-phase power supply is used as a reference input power supply, the positive input ends of the two photoelectric couplers are respectively connected, the other two alternating current power supplies are respectively connected to the negative input ends of the two photoelectric couplers, amplification of the three-phase power supply is realized, and meanwhile, phase-missing detection and phase testing of phases can be realized through input comparison of the three-phase power supply.

The beneficial effects of the utility model reside in that: the utility model realizes real-time monitoring of the phase of the three-phase power supply through phase testing and phase loss detection formed by two photoelectric couplers; and then the monitored information is input into the singlechip, and the singlechip outputs display information to obtain the result of whether the three-phase power supply is in phase failure or not, so that phase supplement is carried out.

As an embodiment of the present invention: as shown in fig. 6, the digital display circuit includes: a nixie tube S; wherein the content of the first and second substances,

the input end and the output end of the nixie tube S are both connected with a current-limiting resistor;

the nixie tube S also comprises a plurality of DIG1 output ends, and the NPN-type silicon tubes are connected to the plurality of DIG1 output ends; wherein the content of the first and second substances,

the base electrode and the emitting electrode of the NPN type silicon tube are connected through resistors connected in series.

The principle of the utility model lies in: the utility model realizes current limiting through the connecting resistance of the input end and the output end of the nixie tube, so as to prolong the service life of the nixie tube; and the determination of the static operating point is realized by connecting a plurality of DIG1 output terminals to the auxiliary circuit.

The beneficial effects of the utility model reside in that: the utility model realizes the stable control of the digital tube by the single chip microcomputer through the determination of the static working electricity of the digital tube; the control information can be displayed in real time when the curtain drawing motor is used.

As an embodiment of the present invention: as shown in fig. 7, the remote controller circuit includes: the decoder AU, the MOS field effect transistor MS, the connector H, a thirteenth resistor R13 and a fourteenth resistor R14; wherein the content of the first and second substances,

the source and the gate of the MOS field effect transistor MS are connected with a thirteenth resistor R13 and a fourteenth resistor 14 in series;

the thirteenth resistor 13 and the fourteenth resistor 14 are further connected to an NPN-type silicon transistor, and a base and an emitter of the NPN-type silicon transistor are connected through resistors connected in series to determine a static operating point.

The drain electrode of the MOS field effect transistor MS is connected with a wire connector H, and the wire connector H is also connected with the base electrodes of a plurality of NPN type silicon transistors through resistors.

The principle of the utility model lies in: the source and the grid of the MOS field effect transistor MS are connected with the bases of a plurality of NPN type silicon transistors through a connector H to receive input signals through a thirteenth resistor R13 and a fourteenth resistor 14 which are connected in series to serve as remote control electronic switches. And the decoder AU is used for decoding an input signal of an external remote control device to realize remote control.

The beneficial effects of the utility model reside in that: and the remote control of the curtain drawing motor is realized through a remote controller circuit. In the prior art, 2 electrical engineers are required to be matched up and down for debugging the motor, the remote controller can be carried out by only holding 1 hand, the debugging is convenient and visual (nixie tube direct display), and a lot of mechanical operations are omitted.

As an embodiment of the present invention: as shown in fig. 8, the key circuit includes: a key expander K; wherein the content of the first and second substances,

the key expander K is connected with a plurality of NPN type silicon tubes, and bases and emitters of the NPN type silicon tubes are connected through resistors connected in series; the collector electrodes of the NPN type silicon tubes are connected with the single chip microcomputer, and the collector electrodes of the NPN type silicon tubes are grounded through resistors.

The principle of the utility model lies in: the key expander K realizes input instruction standardization of the curtain drawing motor, the case expander is connected with a plurality of NPN type silicon tubes, the determination of the static working point of the key circuit is realized, and then the curtain drawing motor is controlled through keys.

The beneficial effects of the utility model reside in that: through the design of the key circuit, the stable mechanical instruction control of the curtain drawing motor is realized. Making the control more quasi-deterministic.

As an embodiment of the present invention: the single chip microcomputer, the reversing circuit, the voltage transformation circuit, the memory, the phase measurement and control circuit, the digital display circuit, the remote controller circuit and the key circuit are sealed through glue pouring. Through to the whole encapsulating of control circuit sealing treatment, fail safe nature is high, and is more reliable than traditional limit switch.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A curtain drawing motor, comprising: the motor controller is arranged in a mounting groove preset in the motor body;

the reversing circuit is connected with the single chip microcomputer and the three-phase alternating current power supply and is used for controlling the motor body to reverse;

the voltage transformation circuit is connected with the single chip microcomputer and is used for obtaining direct current for driving the single chip microcomputer;

the phase measurement and control circuit is connected with the single chip microcomputer and is used for carrying out phase test and open-phase detection on the power supply;

the memory is connected with the single chip microcomputer and used for storing a control instruction for controlling the operation of the motor;

the digital display circuit is connected with the singlechip and is used for displaying output data of the singlechip;

the remote controller circuit is connected with the single chip microcomputer and is used for being externally connected with remote control equipment;

2. The curtain drawing motor as claimed in claim 1, wherein: the reversing circuit comprises a first relay (KA1) and a second relay (KA2), the first relay (KA1) is externally connected with a three-phase power supply (P1), and the first relay (KA1) is also connected with the second relay (KA 2); wherein the content of the first and second substances,

one phase of the three-phase power supply (P1) is connected with a first fuse (FU1) and a first relay (KA1), and the other phase of the three-phase power supply (P1) is connected with a second fuse (FU2) and a first relay (KA 1);

the first relay (KA1) and the second relay (KA2) are both connected with an auxiliary circuit, and the auxiliary circuit is connected with the single chip microcomputer;

the auxiliary circuit of the first relay (KA1) comprises: a first diode (D1), a first triode (Q1), a first resistor (R1) and a second resistor (R2); wherein the content of the first and second substances,

the positive electrode and the negative electrode of the first diode (D1) are respectively connected to two ends of the first relay (KA1), the positive electrode of the first diode (D1) is connected with the collector electrode of a first triode (Q1), and the emitter and the base of the first triode (Q1) are connected through a first resistor (R1) and a second resistor (R2) which are connected in series;

the auxiliary circuit of the second relay (KA2) comprises: a second diode (D2), a second triode (Q2), a third resistor (R3) and a fourth resistor (R4); wherein the content of the first and second substances,

the anode and the cathode of the second diode (D2) are respectively connected to two ends of the second relay (KA2), the anode of the second diode (D2) is connected with the collector of a second triode (Q2), and the emitter and the base of the second triode (Q2) are connected through a third resistor (R3) and a fourth resistor (R4) which are connected in series;

the first relay (KA1) is provided with three normally open contacts, the second relay (KA2) is provided with two normally open contacts, the first diode (D1) and the second diode (D2) are fast recovery diodes, and the first triode (Q1) and the second triode (Q2) are N-channel enhanced network field effect transistors.

3. The curtain drawing motor as claimed in claim 1, wherein: the voltage transformation circuit comprises: the rectifier comprises a transformer (L), a rectifier bridge (A), a voltage stabilizer (U) and a first photoelectric coupler (OP 1); wherein the content of the first and second substances,

the output end of the transformer (L) is connected with the input end of the rectifier bridge (A), and the output end of the rectifier bridge (A) is respectively connected with the voltage stabilizer (U) and the first photoelectric coupler (OP 1);

the rectifier bridge (A) and the voltage stabilizer (U) are connected through a third fuse (FU3), and a third fuse (FU3), a Zener Diode (DT) and a fifth resistor (R5) are connected between the rectifier bridge (A) and the first photoelectric coupler (OP 1); the output end of the rectifier bridge (A) is connected with a first capacitor (C1) and a first trimming capacitor (CT1) in parallel;

the output end of the voltage stabilizer (U) is also grounded through a direct connection Schottky Diode (DX), and the output end of the voltage stabilizer (U) is respectively connected with a second trimming capacitor (CT2) and a third trimming capacitor (CT3) through a first inductor (I) and grounded; the output end of the voltage stabilizer (U) is connected with a seventh resistor (R7) and an eighth resistor (R8) which are connected in series through a first inductor (I) and is grounded, wherein the eighth resistor (R8) is connected with a third capacitor (C3) in parallel;

the output end of the first photoelectric coupler (OP1) is connected with a sixth resistor (R6) and a second capacitor (C2).

4. The curtain drawing motor as claimed in claim 1, wherein: the phase measurement and control circuit comprises: a second photo coupler (OP2), a third diode (D3), a ninth resistor (R9), a tenth resistor (R10), a fourth diode (D4), a thirteenth resistor (R13), a fourth capacitor (C4), a fifth capacitor (C5), a third photo coupler (OP3), a fifth diode (D5), a sixth diode (D6), a twelfth resistor (R12), an eleventh resistor (R11) and a fourteenth resistor (R14); wherein the content of the first and second substances,

a third diode (D3) and a ninth resistor (R9) which are connected in series are connected to the positive input end of the second photoelectric coupler (OP2), a tenth resistor (R10) is connected to the negative input end of the second photoelectric coupler (OP2), and a fourth diode (D4) is connected in parallel to the positive input end and the negative input end of the second photoelectric coupler (OP 2); the output end of the second photoelectric coupler (OP2) is connected with a thirteenth resistor (R13) and a fourth capacitor (C4);

a fifth diode (D5) and a twelfth resistor (R12) which are connected in series are connected to the positive input end of the third photoelectric coupler (OP3), an eleventh resistor (R11) is connected to the negative input end of the third photoelectric coupler (OP3), and a sixth diode (D6) is connected in parallel to the positive input end and the negative input end of the third photoelectric coupler (OP 3); the output end of the third photoelectric coupler (OP3) is connected with a fourteenth resistor (R14) and a fifth capacitor (C5).

5. The curtain drawing motor as claimed in claim 1, wherein: the digital display circuit comprises a nixie tube (S), and a current-limiting resistor and an auxiliary circuit which are connected with the nixie tube (S); wherein the content of the first and second substances,

the input end and the output end of the nixie tube (S) are both connected with a current limiting resistor;

6. The curtain drawing motor as claimed in claim 1, wherein: the remote controller circuit includes: a decoder (AU), a MOS field effect transistor (MS), a connector (H), a fifteenth resistor (R15) and a sixteenth resistor (R16); wherein the content of the first and second substances,

the source electrode and the gate electrode of the MOS field effect transistor (MS) are connected with a fifteenth resistor (R15) and a sixteenth resistor (R16) in series;

the fifteenth resistor (R15) and the sixteenth resistor (R16) are also connected with an NPN type silicon tube, and the base electrode and the emitter electrode of the NPN type silicon tube are connected through resistors connected in series;

the drain electrode of the MOS field effect transistor (MS) is connected with a wire connector (H), and the wire connector (H) is also connected with the base electrodes of a plurality of NPN type silicon transistors through resistors.

7. The curtain drawing motor as claimed in claim 1, wherein: the key circuit includes: a key expander (K) and an auxiliary circuit; wherein the content of the first and second substances,

the key expander (K) is connected with a plurality of auxiliary circuits, each auxiliary circuit comprises a plurality of NPN type silicon tubes, and bases and emitters of the NPN type silicon tubes are connected through resistors connected in series; the collector electrodes of the NPN type silicon tubes are connected with the single chip microcomputer, and the collector electrodes of the NPN type silicon tubes are grounded through resistors.

8. The curtain drawing motor as claimed in claim 1, wherein: the single chip microcomputer, the reversing circuit, the voltage transformation circuit, the memory, the phase measurement and control circuit, the digital display circuit, the remote controller circuit and the key circuit are sealed through integral glue pouring.