Motor control circuit of garbage disposer
阅读说明：本技术 垃圾处理器电机控制电路 (Motor control circuit of garbage disposer ) 是由 邓愿球 齐彪 侍凤林 于 2019-10-09 设计创作，主要内容包括：本发明公开了一种垃圾处理器电机控制电路,包括L端、N端和电容C6、电机主线圈和电机副线圈,所述电容C6一端连接电机主线圈,所述电容C6另一端连接电机副线圈,还包括ULN2003A芯片、STM集成电路IC2、ACDC12V电源、电流互感器T2、继电器线圈J1、继电器线圈J2、继电器线圈J3、继电器线圈J4、电阻R4、电阻R5、电阻R6、电阻R7、电容C1、发光二极管LED1、二极管V1、二极管V2、二极管V3、二极管V4、程序、启动继电器K1、主电源继电器K2、反转继电器K3和正转继电器K4,该电路能在刀盘被堵时控制电机反转,若多次改变电机运转方向而无法解决堵塞问题,则控制电机停机,避免电机被损坏,提高垃圾处理器电机使用的寿命,提高垃圾处理器的整体可靠性。(The invention discloses a motor control circuit of a garbage disposer, which comprises an L end, an N end, a capacitor C6, a motor main coil and a motor auxiliary coil, wherein one end of the capacitor C6 is connected with the motor main coil, the other end of the capacitor C6 is connected with the motor auxiliary coil, the motor control circuit also comprises an ULN2003A chip, an STM integrated circuit IC2, an ACDC12V power supply, a current transformer T2, a relay coil J1, a relay coil J2, a relay coil J3, a relay coil J4, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a capacitor C1, a light emitting diode LED1, a diode V1, a diode V2, a diode V3, a diode V4, a program, a starting relay K1, a main power relay K2, a reverse relay K3 and a relay K4, the circuit can control the motor to reversely rotate when a cutterhead is blocked, the operation direction of the motor cannot be blocked and the problem of the motor can not be solved, the service life of the motor of the garbage disposer is prolonged, and the overall reliability of the garbage disposer is improved.)
1. A garbage processor motor control circuit comprises an L end, an N end, a capacitor C6, a motor main coil and a motor auxiliary coil, wherein one end of the capacitor C6 is connected with the motor main coil, and the other end of the capacitor C6 is connected with the motor auxiliary coil, and the garbage processor motor control circuit is characterized by further comprising an ULN2003A chip, an STM integrated circuit IC2, an ACDC12V power supply, a current transformer T2, a relay coil J1, a relay coil J2, a relay coil J3, a relay coil J4, a resistor R4, a resistor R5, a capacitor C5, a light emitting diode LED 5, a diode V5, a program, a starting relay K5, a main power relay K5, a reverse relay K5 and a forward relay K5, wherein a pin 1 of the ULN 2003N 5 chip is connected with a pin 20 of the STM integrated circuit IC 5, a pin 2 pin is connected with a pin 19 of the STM integrated circuit IC 5, and a pin of the STM integrated circuit, The 4 pin is connected with the 16 pin of the STM integrated circuit IC2, the 5 pin is connected with the 15 pin of the STM integrated circuit IC2, the 6 pin is connected with the 14 pin of the STM integrated circuit IC2, the 8 pin is connected with the capacitor C1, the 9 pin is connected with an ACDC12V power supply, the 11 pin is connected with the relay coil J1, the 12 pin is connected with the relay coil J2, the 13 pin is connected with the relay coil J3, the 14 pin is connected with the relay coil J4, the 15 pin is connected with the resistor R5, the 16 pin is connected with the cathode of the light emitting diode LED1, the STM integrated circuit IC2 comprises a processor, the 2 pin of the STM integrated circuit IC2 is connected with the cathode of a diode V1, one end of the current transformer T2 is connected with the anode of the diode V1, the other end of the current transformer T2 is connected with the anode of the diode V4, the cathode of the diode V6324 is connected with the anode of the diode V1 and the capacitor C5928, the cathode of the diode V3 is connected between the diode V4 and the current transformer T2, the anode of the diode V3 is connected between the diode V2 and the capacitor C1, the cathode of the diode V4 is connected between the diode V1 and the pin 2 of the STM integrated circuit IC2, the current transformer T2 is connected in parallel with the resistor R7, the current induced by the current transformer T2 comes from the connection line of the main coil of the motor and the N terminal, the anode of the light emitting diode LED1 is connected to the resistor R4, the other end of the resistor R4 is connected to the ACDC12V power supply, the relay coils J1, J2, J3 and J3 are connected to the ACDC12 3 power supply, the resistor R3 is connected to the resistor R3, the other end of the resistor ACDC 3 is connected to the ACDC12 3 power supply, and the capacitor C3 is connected to the ACDC12 3 power supply;
the starting relay K1 is connected with the N end, the other end of the starting relay K1 is connected with the reverse rotation relay K3, one end of the main power relay K2 is connected with the main motor coil, the other end of the main power relay K2 is connected with the N end, one end of the reverse rotation relay K3 is connected with one end of the auxiliary motor coil, the other end of the reverse rotation relay K3 is connected with the N end, one end of the forward rotation relay K4 is connected with the other end of the auxiliary motor coil, and the other end of the forward rotation relay K4 is connected with the N end;
the program is stored in the STM integrated circuit IC2, and when the program is executed by the processor, the program can realize the following steps that whether the current sensed by the current transformer T2 exceeds a set value or not is judged, if the current exceeds the set value, a switching signal is output to the ULN2003A chip to control the action of a relay, the motor is reversed, and if the current does not exceed the set value, no signal is output.
2. The garbage disposer motor control circuit according to claim 1, wherein the current transformer T2 senses current and supplies the current to the STM IC2 after ballast filtering, the program judges that the current lasts for more than 500ms when being executed by the processor, and outputs a switching signal to the ULN2003A chip, the main power relay K2 releases the shutdown, after 2 seconds of stopping, the open and close states of the reverse relay K3 and the forward relay K4 are reversed, and the main power relay K2 and the start relay K1 are attracted again to control the motor to rotate reversely.
3. The garbage disposer motor control circuit of claim 1, wherein the program when executed by the disposer determines that the current lasts for more than 500ms, and controls the motor to reverse after stopping for 2 seconds, and then the cycle is repeated 3 times without stopping the motor if the overcurrent is not released.
Technical Field
The invention relates to the field of motors, in particular to a motor control circuit of a garbage disposer.
Background
The kitchen garbage disposer is a kitchen household appliance, which is usually installed below a kitchen sink, the inlet of the disposer is connected with a water outlet at the bottom of the sink, the treated garbage is discharged with waste water through a drainage pipeline, a rotatable cutter disc is arranged in the garbage disposer, a motor drives the cutter disc in the disposer to rotate, food garbage in a grinding cavity is ground and ground by utilizing centrifugal force, a 360-degree rotary impact head is arranged on the cutter disc, and the kitchen garbage disposer has the advantages of safety and durability, can conveniently grind the food garbage such as vegetable heads, vegetable tails, leftovers and the like and then discharge the food garbage into a sewer, the ground particles can not block the drainage pipeline and the sewer, and can easily realize instant, convenient and quick kitchen cleaning, and avoid the food garbage from breeding germs, mosquitoes, peculiar smells and the like due to the residual food garbage in the drainage pipeline, thereby creating healthy operation, A clean kitchen environment.
When the garbage disposer disposes food garbage in a kitchen, if food flowing into the garbage disposer is soft food such as rice and vegetables, the garbage disposer can finish disposal quickly, but the garbage flowing into the garbage disposer is hard garbage such as hard bones, which may cause the garbage disposer to work abnormally, cause the motor to run at a normal speed, and even cause the motor to be locked and rotate, which may not only affect normal disposal of the kitchen garbage, but also may damage the motor, greatly affect the service life of the motor, and affect the reliability of the garbage disposer.
However, in the prior art, when the cutter head in the garbage disposer is in normal operation, the cutter head may be blocked by food garbage which is hard or irregular in shape, so that the garbage disposer cannot work normally, and a motor in the garbage disposer is blocked, so that the service life of the motor is shortened, and the reliability of the garbage disposer is affected.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a motor control circuit of a garbage disposer, which can control a motor to rotate reversely when a cutter is blocked, so that the garbage disposer can normally dispose garbage after the operation direction of the motor is changed for many times, and if the problem that the cutter is blocked by the garbage cannot be solved by changing the operation direction of the motor for many times, the motor is controlled to stop, the motor is prevented from being damaged, the service life of the motor of the garbage disposer is prolonged, and the overall reliability of the garbage disposer is improved.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a garbage processor motor control circuit comprises an L end, an N end, a capacitor C6, a motor main coil and a motor auxiliary coil, wherein one end of the capacitor C6 is connected with the motor main coil, the other end of the capacitor C6 is connected with the motor auxiliary coil, the garbage processor motor control circuit further comprises an ULN2003A chip, an STM integrated circuit IC2, an ACDC12V power supply, a current transformer T2, a relay coil J1, a relay coil J2, a relay coil J3, a relay coil J4, a resistor R4, a resistor R5, a capacitor C5, a light
the starting relay K1 is connected with the N end, the other end of the starting relay K1 is connected with the reverse rotation relay K3, one end of the main power relay K2 is connected with the main motor coil, the other end of the main power relay K2 is connected with the N end, one end of the reverse rotation relay K3 is connected with one end of the auxiliary motor coil, the other end of the reverse rotation relay K3 is connected with the N end, one end of the forward rotation relay K4 is connected with the other end of the auxiliary motor coil, and the other end of the forward rotation relay K4 is connected with the N end;
the program is stored in the STM integrated circuit IC2, and when the program is executed by the processor, the program can realize the following steps that whether the current sensed by the current transformer T2 exceeds a set value or not is judged, if the current exceeds the set value, a switching signal is output to the ULN2003A chip to control the action of a relay, the motor is reversed, and if the current does not exceed the set value, no signal is output.
Preferably, the current transformer T2 senses that current is supplied to the STM IC2 after ballast filtering, when the program is executed by the processor, the current lasting for more than 500ms is determined, a switching signal is output to the ULN2003A chip, the main power relay K2 releases shutdown, after 2 seconds of stopping, the opening and closing states of the reverse relay K3 and the forward relay K4 are reversed, and the main power relay K2 and the starting relay K1 attract each other again to control the motor to rotate reversely.
Preferably, the program is executed by the processor to judge that the current lasts for more than 500ms, the motor is controlled to rotate reversely after the processor is stopped for 2 seconds, the motor is not started if the current still exceeds 500ms after the process is circulated for 3 times, and the garbage processor needs to be cleaned after the motor is stopped and not started.
By adopting the technical scheme, because the motor control circuit of the garbage disposer controls the rotation of the motor in the garbage disposer, when the cutter head is blocked, the control motor rotates reversely for many times, so that the blocked motor can work normally, and the motor can not rotate normally after being rotated for many times, so that the motor is controlled to stop, the motor is prevented from being damaged, the service life of the motor can be prolonged, the garbage disposer can be improved in garbage disposal capacity, and the reliability of the garbage disposer is improved.
Drawings
FIG. 1 is a schematic diagram of a garbage disposer motor control circuit of the present invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, which is a schematic diagram of a garbage disposer motor control circuit of the present invention, the garbage disposer motor control circuit includes an L terminal, an N terminal, a capacitor C6, a main motor coil and a sub-motor coil, one terminal of the capacitor C6 is connected to the main motor coil, the other terminal of the capacitor C6 is connected to the sub-motor coil, an ULN2003A chip, an STM integrated circuit IC2, an ACDC12V power supply, a current transformer T2, a relay coil J1, a relay coil J2, a relay coil J3, a relay coil J4, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a capacitor C1, a light emitting diode LED1, a diode V1, a program, a start relay K1, a main relay K1, a reverse relay K1, and a forward relay K1, the ULN2003 1 is a 7-way reverse relay circuit, that is a high input terminal and a low terminal 2003 input terminal, and an ULN2003 output terminal are high level, since ULN2003A is open collector output, in order to make this diode play freewheeling role, COM pin must be connected to load power supply, only then it can form freewheeling loop, COM pin in this circuit is connected to ACDC12V through capacitor C1,
the starting relay K1 is connected with the N end, the other end of the starting relay K1 is connected with the reverse rotation relay K3, one end of the main power relay K2 is connected with the main motor coil, the other end of the main power relay K2 is connected with the N end, one end of the reverse rotation relay K3 is connected with one end of the auxiliary motor coil, the other end of the reverse rotation relay K3 is connected with the N end, one end of the forward rotation relay K4 is connected with the other end of the auxiliary motor coil, and the other end of the forward rotation relay K4 is connected with the N end;
the program is stored in the STM integrated circuit IC2, and when the program is executed by a processor, the program can realize the following steps that whether the current sensed by a current transformer T2 exceeds a set value or not is judged, if the current exceeds the set value, a switching signal is output to the ULN2003A chip to control the action of a relay, the motor reversal is completed, and if the current does not exceed the set value, no signal is output;
the current transformer T2 senses current and supplies the current to an STM integrated circuit IC2 after ballast filtering, when the program is executed by a processor, the current lasting for more than 500ms is judged, a switching signal is output to the ULN2003A chip, the main power relay K2 is released and stopped, after a motor of the garbage processor stops working for 2 seconds, the opening and closing states of the reverse relay K3 and the forward relay K4 are turned over, the main power relay K2 and the starting relay K1 are attracted again, and as the reverse relay K3 and the forward relay K4 are switched, the phase of a motor coil is reversed, and the motor is controlled to be reversed;
when the program is executed by the processor, the current lasting for more than 500ms is judged, the motor is controlled to rotate reversely after the machine is stopped for 2 seconds, the motor is not started if the current still exceeds 500ms after the circulation is carried out for 3 times, the garbage processor needs to be cleaned after the motor is stopped and not started, and the motor is started to work after the processing is finished.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.
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