Energy-saving control circuit of washing machine controller

Abstract

The present invention discloses an energy-saving control circuit of a washing machine controller, which relates to the technical field of washing machine control, and includes a power bidirectional control module for bidirectional regulation and transmission of electric energy; a washing machine motor module for forward and reverse rotation and generating regenerative electric energy during braking; an intelligent control module for signal reception and module control; a first energy storage module and a second energy storage module for alternately storing electric energy during braking; a connection control module for controlling the first energy storage module and the second energy storage module to supply power in series; an electric quantity detection module for fully charging the first energy storage module and the second energy storage module; and an energy-saving power supply module for releasing the electric energy output in series of the first energy storage module and the second energy storage module when the first energy storage module and the second energy storage module are both fully charged and braking. The energy-saving control circuit of the washing machine controller of the present invention realizes the energy-saving operation of the washing machine, improves the energy storage efficiency and the power supply efficiency, and improves the voltage range during energy-saving power supply.

Description

Technical Field

[0001] The invention relates to the technical field of washing machine control, in particular to an energy-saving control circuit of a washing machine controller. Background Art

[0002] A washing machine is a very common household appliance. Since it is used very frequently, it is one of the household appliances with the highest power consumption. Washing machines in the prior art generally use an H-bridge motor and a microcontroller to complete washing, drying and other tasks. When the H-bridge motor is driven, the H-bridge motor rotates forward and reversely, and when the forward rotation changes to the reverse rotation or the reverse rotation changes to the forward rotation, the microcontroller will brake the H-bridge motor. To avoid energy waste, the regenerative electric energy generated during braking is stored in a battery. However, since multiple braking states may occur during a washing process, the battery is frequently charged and discharged. Using one battery for charging and discharging is likely to increase the battery usage burden and reduce the battery life, and the voltage range that can be provided is limited, so there is room for improvement. Summary of the invention

[0003] The embodiment of the present invention provides an energy-saving control circuit of a washing machine controller to solve the problems raised in the above background technology.

[0004] According to an embodiment of the present invention, there is provided an energy-saving control circuit of a washing machine controller, comprising: a power bidirectional control module, a washing machine motor module, an intelligent control module, a first energy storage module, a second energy storage module, a connection control module, a power detection module and an energy-saving power supply module;

[0005] A power bidirectional control module, connected to the intelligent control module, the washing machine motor module and the energy-saving control module, for receiving the mains power and performing rectification and filtering on the mains power, and when receiving the first pulse signal output by the intelligent control module, performing voltage reduction processing on the rectified and filtered power and outputting the first power, and when receiving the second pulse signal output by the intelligent control module, performing voltage increase processing on the regenerated power generated by the washing machine motor module and outputting the second power, and transmitting the power output by the energy-saving control module to the washing machine motor module;

[0006] A washing machine motor module is connected to the intelligent control module and is used to receive the electric energy output by the power bidirectional control module, and performs forward rotation when receiving the first driving signal output by the intelligent control module, and performs reverse rotation when receiving the second driving signal output by the intelligent control module, and generates regenerative electric energy during the period when the forward rotation is converted to the reverse rotation or the reverse rotation is converted to the forward rotation;

[0007] an intelligent control module, connected to the energy-saving power supply module, for outputting a first pulse signal when controlling the washing machine motor module to rotate forward or reverse, outputting a first brake signal and a second pulse signal during the period when the forward rotation is converted to the reverse rotation or the reverse rotation is converted to the forward rotation, outputting a first drive signal and controlling the forward rotation of the washing machine motor module, outputting a second drive signal and controlling the reverse rotation of the washing machine motor module, and stopping outputting the first pulse signal when receiving the first control signal output by the energy-saving power supply module;

[0008] a first energy storage module, connected to the intelligent control module and the power bidirectional control module, and configured to output a first level signal and store second electric energy when receiving a first driving signal and a first braking signal, so as to release the stored electric energy;

[0009] a second energy storage module, connected to the intelligent control module and the power bidirectional control module, for outputting a second level signal and storing second electric energy when receiving a second driving signal and a first braking signal, and for releasing the stored electric energy;

[0010] A connection control module, connected to the first energy storage module, the second energy storage module and the energy-saving power supply module, and configured to control the first energy storage module and the second energy storage module to be connected in series upon receiving a first control signal output by the energy-saving power supply module;

[0011] A power detection module, connected to the first energy storage module and the second energy storage module, used to set a first full-power threshold and a second full-power threshold, sample the power of the first energy storage module and output a first detection signal, sample the power of the second energy storage module and output a second detection signal, when the first detection signal is greater than the first full-power threshold, reduce the voltage value of the first full-power threshold and output a third control signal, when the second detection signal is greater than the second full-power threshold, reduce the voltage value of the second full-power threshold and output a fourth control signal, and when the third control signal and the fourth control signal are output simultaneously, output a fifth control signal;

[0012] The energy-saving power supply module is connected to the first energy storage module and the power detection module, and is used to output the first control signal and transmit the electric energy released by the first energy storage module to the power bidirectional control module when receiving the fifth control signal and the first braking signal.

[0013] As a further solution of the present invention: the power bidirectional control module includes a mains interface, a first rectifier, a first capacitor, a first power tube, a second power tube, a first inductor and a second capacitor; the intelligent control module includes a first controller;

[0014] Preferably, the first end and the second end of the AC power interface are respectively connected to the first end and the second end of the first rectifier, the third end of the first rectifier is connected to the drain of the first power tube and is connected to the fourth end of the first rectifier, the source of the second power tube and one end of the second capacitor through the first capacitor, the source of the first power tube is connected to the drain of the second power tube and the first end of the first inductor, the second end of the first inductor is connected to the other end of the second capacitor, and the gate of the first power tube and the gate of the second power tube are respectively connected to the IO1 end and IO2 end of the first controller.

[0015] As a further solution of the present invention: the washing machine motor module includes a first transistor, a second transistor, a third transistor, a fourth transistor and a first motor;

[0016] Preferably, the collector of the first transistor is connected to the collector of the third transistor and the second end of the first inductor, the emitter of the first transistor is connected to the first end of the first motor and the collector of the second transistor, the emitter of the third transistor is connected to the collector of the fourth transistor and the second end of the first motor, the emitter of the fourth transistor and the emitter of the second transistor are both grounded, and the gate of the first transistor, the gate of the second transistor, the gate of the third transistor and the gate of the fourth transistor are respectively connected to the IO4 terminal, IO3 terminal, IO5 terminal and IO6 terminal of the first controller.

[0017] As a further solution of the present invention: the first energy storage module includes a second diode, a fourth power tube, a first energy storage device, a first logic chip and a third diode;

[0018] Preferably, the anode of the second diode is connected to the source of the first power tube, the cathode of the second diode is connected to the drain of the fourth power tube, the source of the fourth power tube is connected to the first end of the first energy storage device, the gate of the fourth power tube is connected to the F end of the first logic chip, the A end of the first logic chip is connected to the IO7 end of the first controller, the B end of the first logic chip is connected to the cathode of the third diode, and the anode of the third diode is connected to the IO3 end of the first controller.

[0019] As a further solution of the present invention: the second energy storage module includes a first diode, a third power tube, a second energy storage device, a second logic chip and a fourth diode;

[0020] Preferably, the anode of the first diode is connected to the source of the first power tube, the cathode of the first diode is connected to the drain of the third power tube, the source of the third power tube is connected to the second energy storage device, the second end of the second energy storage device is grounded, the gate of the third power tube is connected to the F end of the second logic chip, the A end and the B end of the second logic chip are respectively connected to the IO7 end of the first controller and the cathode of the fourth diode, and the anode of the fourth diode is connected to the IO4 end of the first controller.

[0021] As a further solution of the present invention: the connection control module includes a fifth power tube, a first resistor and a sixth power tube;

[0022] Preferably, the drain of the fifth power tube is connected to the second energy storage device, the source of the fifth power tube is connected to the second end of the first energy storage device and the source of the sixth power tube, the gate of the sixth power tube is connected to the gate of the fifth power tube and the energy-saving power supply module and the drain of the sixth power tube is connected to the ground through the first resistor.

[0023] As a further solution of the present invention: the power detection module includes a second resistor, a third resistor, a first power supply, a fourth resistor, a fifth resistor, a first switch tube, a sixth resistor, a first comparator, a power detection device and a third logic chip;

[0024] Preferably, the in-phase end of the first comparator is connected to one end of the third resistor and to the first end of the first energy storage device through the second resistor, the other end of the third resistor is connected to the second end of the first energy storage device, the inverting end of the first comparator is connected to the collector of the first switching tube and one end of the fifth resistor and to the first power supply through the fourth resistor, the emitter of the first switching tube is connected to the other end of the fifth resistor and the ground through the sixth resistor, the output end of the first comparator is connected to the A end of the third logic chip and the base of the first switching tube, the B end of the first logic chip is connected to the output end of the power detection device, the first input end and the second input end of the power detection device are respectively connected to the first end and the second end of the second energy storage device, and the F end of the third logic chip is connected to the energy-saving power supply module.

[0025] As a further solution of the present invention: the energy-saving power supply module includes a first inverter, a fourth logic chip, a seventh power tube and a fifth diode;

[0026] Preferably, the input end of the first inverter is connected to the IO7 end of the first controller, the output end of the first inverter is connected to the A end of the fourth logic chip, the B end of the fourth logic chip is connected to the F end of the third logic chip, the F end of the fourth logic chip is connected to the IO8 end of the first controller, the gate of the seventh power tube and the gate of the sixth power tube, the drain of the seventh power tube is connected to the first end of the first energy storage device, the source of the seventh power tube is connected to the anode of the fifth diode, and the cathode of the fifth diode is connected to the first end of the first inductor.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows: the energy-saving control circuit of the washing machine controller of the present invention controls the forward rotation, reverse rotation and braking operation of the washing machine motor module by the intelligent control module, and during the braking period, controls the first energy storage module and the second energy storage module to alternately store the regenerated electric energy generated by the washing machine motor module according to the forward and reverse rotation states, and the electric power detection module detects the electric power states of the first energy storage module and the second electric energy module respectively, and when the first energy storage module and the second electric energy module are both in a fully charged state and the washing machine motor module is in forward rotation or reverse rotation, the connection control module controls the first energy storage module and the second energy storage module to discharge in series to meet the power supply control of the washing machine motor module, and during braking, alternate energy storage is performed again to achieve energy-saving operation of the washing machine, improve energy storage efficiency and power supply efficiency, increase the voltage range during energy-saving power supply, and meet power supply requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0029] Figure 1 A schematic block diagram of an energy-saving control circuit of a washing machine controller provided by an embodiment of the present invention.

[0030] Figure 2 A circuit diagram of an energy-saving control circuit of a washing machine controller provided by an embodiment of the present invention.

[0031] Figure 3 A circuit diagram of a power detection module provided in an embodiment of the present invention.

[0032] Figure 4 A circuit diagram of an energy-saving power supply module provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In one embodiment, see Figure 1, an energy-saving control circuit of a washing machine controller, comprising: a power bidirectional control module 1, a washing machine motor module 2, an intelligent control module 3, a first energy storage module 4, a second energy storage module 5, a connection control module 6, a power detection module 7 and an energy-saving power supply module 8;

[0035] Specifically, the power bidirectional control module 1 is connected to the intelligent control module 3, the washing machine motor module 2 and the energy-saving control module, and is used to access the mains power and perform rectification and filtering on the mains power. When receiving the first pulse signal output by the intelligent control module 3, the rectified and filtered power is stepped down and the first power is output. When receiving the second pulse signal output by the intelligent control module 3, the regenerated power generated by the washing machine motor module 2 is stepped up and the second power is output, and the power output by the energy-saving control module is transmitted to the washing machine motor module 2.

[0036] The washing machine motor module 2 is connected to the intelligent control module 3 and is used to receive the electric energy output by the power bidirectional control module 1. When receiving the first driving signal output by the intelligent control module 3, the motor module 2 rotates forward, and when receiving the second driving signal output by the intelligent control module 3, the motor module 2 rotates reversely, and generates regenerative electric energy during the period when the forward rotation is converted to the reverse rotation or the reverse rotation is converted to the forward rotation;

[0037] The intelligent control module 3 is connected to the energy-saving power supply module 8, and is used to output a first pulse signal when controlling the washing machine motor module 2 to rotate forward or reverse, output a first brake signal and a second pulse signal during the period when the forward rotation is converted to the reverse rotation or the reverse rotation is converted to the forward rotation, output a first drive signal and control the forward rotation of the washing machine motor module 2, output a second drive signal and control the reverse rotation of the washing machine motor module 2, and stop outputting the first pulse signal when receiving the first control signal output by the energy-saving power supply module 8;

[0038] A first energy storage module 4 is connected to the intelligent control module 3 and the power bidirectional control module 1, and is used to output a first level signal and store second electric energy when receiving a first driving signal and a first braking signal, so as to release the stored electric energy;

[0039] A second energy storage module 5, connected to the intelligent control module 3 and the power bidirectional control module 1, is used to output a second level signal and store second electric energy when receiving a second driving signal and a first braking signal, so as to release the stored electric energy;

[0040] A connection control module 6 connected to the first energy storage module 4, the second energy storage module 5 and the energy-saving power supply module 8, and configured to control the first energy storage module 4 and the second energy storage module 5 to be connected in series upon receiving a first control signal output by the energy-saving power supply module 8;

[0041] A power detection module 7, connected to the first energy storage module 4 and the second energy storage module 5, for setting a first full-power threshold and a second full-power threshold, sampling the power of the first energy storage module 4 and outputting a first detection signal, sampling the power of the second energy storage module 5 and outputting a second detection signal, when the first detection signal is greater than the first full-power threshold, reducing the voltage value of the first full-power threshold and outputting a third control signal, when the second detection signal is greater than the second full-power threshold, reducing the voltage value of the second full-power threshold and outputting a fourth control signal, and when the third control signal and the fourth control signal are output at the same time, outputting a fifth control signal;

[0042] The energy-saving power supply module 8 is connected to the first energy storage module 4 and the power detection module 7, and is used to output the first control signal and transmit the electric energy released by the first energy storage module 4 to the power bidirectional control module 1 when receiving the fifth control signal and the first braking signal.

[0043] In a specific embodiment, the power bidirectional control module 1 can adopt a power bidirectional control circuit composed of a mains interface, a rectifier, a field effect transistor and a capacitor, can access the mains power and perform rectification, filtering and voltage reduction processing on the mains power, receive the regenerated power and perform voltage boost and filtering processing on the regenerated power; the washing machine motor module 2 can adopt a washing machine motor circuit composed of four groups of IGBTs and a DC motor. The DC motor is the main component of the washing machine, and the four groups of IGBTs are used for forward, reverse and braking control; the intelligent control module 3 can adopt an intelligent control circuit composed of a single-chip microcomputer, which integrates many components such as an operator, a controller, a memory, and an input and output device to realize signal processing, data storage, module control, timing control and other functions; the first energy storage module 4 can adopt a first energy storage circuit composed of a diode, a field effect transistor, an energy storage device, a logic chip, etc., to perform logical calculations on the input signal, and store the regenerated power released by the washing machine motor module 2 when braking occurs; the second energy storage module 5 can adopt a diode , field effect tubes, energy storage devices, logic chips, etc., perform logic calculations on input signals, and store the regenerative electric energy released by the washing machine motor module 2 when braking occurs; the connection control module 6 can adopt a connection control circuit composed of field effect tubes and resistors to control the first energy storage module 4 and the second energy storage module 5 to be connected in series; the power detection module 7 can adopt a power detection circuit composed of resistors, comparators, triodes, logic chips, etc., can set a first full-charge threshold and a second full-charge threshold, perform power detection and full-charge detection on the first energy storage module 4 and the second energy storage module 5, and when the first energy storage module 4 is fully charged, reduce the voltage value of the first full-charge threshold, and when the second energy storage module 5 is fully charged, reduce the voltage value of the second full-charge threshold; the energy-saving power supply module 8 can adopt an energy-saving power supply circuit composed of inverters, logic chips, field effect tubes, etc., and can transmit the electric energy released by the first energy storage module 4 to the power bidirectional control module 1 when the first energy storage module 4 and the second energy storage module 5 are both fully charged and no braking is performed.

[0044] In another embodiment, see Figure 1 , Figure 2 , Figure 3 and Figure 4 The power bidirectional control module 1 includes a mains interface, a first rectifier T1, a first capacitor C1, a first power tube Q1, a second power tube Q2, a first inductor L1 and a second capacitor C2; the intelligent control module 3 includes a first controller U1;

[0045] Specifically, the first end and the second end of the AC power interface are respectively connected to the first end and the second end of the first rectifier T1, the third end of the first rectifier T1 is connected to the drain of the first power tube Q1 and is connected to the fourth end of the first rectifier T1, the source of the second power tube Q2 and one end of the second capacitor C2 through the first capacitor C1, the source of the first power tube Q1 is connected to the drain of the second power tube Q2 and the first end of the first inductor L1, the second end of the first inductor L1 is connected to the other end of the second capacitor C2, and the gate of the first power tube Q1 and the gate of the second power tube Q2 are respectively connected to the IO1 end and IO2 end of the first controller U1.

[0046] In a specific embodiment, the first power tube Q1 and the second power tube Q2 can both be N-channel field effect tubes, wherein the first power tube Q1 cooperates with the first inductor L1 to perform voltage reduction, and the second power tube Q2 cooperates with the first inductor L1 to perform voltage increase; the first controller U1 can be an STM32 microcontroller.

[0047] Further, the washing machine motor module 2 includes a first transistor G1, a second transistor G2, a third transistor G3, a fourth transistor G4 and a first motor M1;

[0048] Specifically, the collector of the first transistor G1 is connected to the collector of the third transistor G3 and the second end of the first inductor L1, the emitter of the first transistor G1 is connected to the first end of the first motor M1 and the collector of the second transistor G2, the emitter of the third transistor G3 is connected to the collector of the fourth transistor G4 and the second end of the first motor M1, the emitter of the fourth transistor G4 and the emitter of the second transistor G2 are both grounded, and the gate of the first transistor G1, the gate of the second transistor G2, the gate of the third transistor G3 and the gate of the fourth transistor G4 are respectively connected to the IO4 terminal, IO3 terminal, IO5 terminal and IO6 terminal of the first controller U1.

[0049] In a specific embodiment, the first transistor G1, the second transistor G2, the third transistor G3 and the fourth transistor G4 can all be IGBTs, wherein the first transistor G1 and the fourth transistor G4 control the forward rotation of the first motor M1, and the second transistor G2 and the third transistor G3 control the reverse rotation of the first motor M1; the first motor M1 can be a DC motor.

[0050] Further, the first energy storage module 4 includes a second diode D2, a fourth power tube Q4, a first energy storage device, a first logic chip J1 and a third diode D3;

[0051] Specifically, the anode of the second diode D2 is connected to the source of the first power tube Q1, the cathode of the second diode D2 is connected to the drain of the fourth power tube Q4, the source of the fourth power tube Q4 is connected to the first end of the first energy storage device, the gate of the fourth power tube Q4 is connected to the F end of the first logic chip J1, the A end of the first logic chip J1 is connected to the IO7 end of the first controller U1, the B end of the first logic chip J1 is connected to the cathode of the third diode D3, and the anode of the third diode D3 is connected to the IO3 end of the first controller U1.

[0052] In a specific embodiment, the fourth power tube Q4 can be an N-channel field effect tube, and the first energy storage device can be a battery pack; the first logic chip J1 can be an AND gate chip, and the third diode D3 rectifies the signal output from the IO3 terminal of the first controller U1; the IO7 terminal of the first controller U1 outputs the first braking signal, that is, the signal output during the process of converting forward to reverse.

[0053] Further, the second energy storage module 5 includes a first diode D1, a third power tube Q3, a second energy storage device, a second logic chip J2 and a fourth diode D4;

[0054] Specifically, the anode of the first diode D1 is connected to the source of the first power tube Q1, the cathode of the first diode D1 is connected to the drain of the third power tube Q3, the source of the third power tube Q3 is connected to the second energy storage device, the second end of the second energy storage device is grounded, the gate of the third power tube Q3 is connected to the F end of the second logic chip J2, the A end and the B end of the second logic chip J2 are respectively connected to the IO7 end of the first controller U1 and the cathode of the fourth diode D4, and the anode of the fourth diode D4 is connected to the IO4 end of the first controller U1.

[0055] In a specific embodiment, the third power tube Q3 can be an N-channel field effect tube, and the second energy storage device can be a battery pack; the second logic chip J2 can be an AND gate chip, and the fourth diode D4 rectifies the signal output from the IO4 terminal of the first controller U1.

[0056] Further, the connection control module 6 includes a fifth power tube Q5, a first resistor R1 and a sixth power tube Q6;

[0057] Specifically, the drain of the fifth power tube Q5 is connected to the second energy storage device, the source of the fifth power tube Q5 is connected to the second end of the first energy storage device and the source of the sixth power tube Q6, and the gate of the sixth power tube Q6 is connected to the gate of the fifth power tube Q5 and the energy-saving power supply module 8 and connected to the drain of the sixth power tube Q6 and the ground terminal through the first resistor R1.

[0058] In a specific embodiment, the fifth power tube Q5 can be an N-channel field effect tube, the sixth power tube Q6 can be a P-channel field effect tube, the fifth power tube Q5 controls the series connection of the first energy storage device and the second energy storage device, and the sixth power tube Q6 controls the grounding of the first energy storage device.

[0059] Furthermore, the power detection module 7 includes a second resistor R2, a third resistor R3, a first power supply VCC1, a fourth resistor R4, a fifth resistor R5, a first switch tube V1, a sixth resistor R6, a first comparator A1, a power detection device and a third logic chip J3;

[0060] Specifically, the in-phase end of the first comparator A1 is connected to one end of the third resistor R3 and is connected to the first end of the first energy storage device through the second resistor R2, the other end of the third resistor R3 is connected to the second end of the first energy storage device, the inverting end of the first comparator A1 is connected to the collector of the first switch tube V1 and one end of the fifth resistor R5 and is connected to the first power supply VCC1 through the fourth resistor R4, the emitter of the first switch tube V1 is connected to the other end of the fifth resistor R5 and the ground through the sixth resistor R6, the output end of the first comparator A1 is connected to the A end of the third logic chip J3 and the base of the first switch tube V1, the B end of the first logic chip J1 is connected to the output end of the power detection device, the first input end and the second input end of the power detection device are respectively connected to the first end and the second end of the second energy storage device, and the F end of the third logic chip J3 is connected to the energy-saving power supply module 8.

[0061] In a specific embodiment, the second resistor R2 and the third resistor R3 perform power sampling; the first power supply VCC1, the fourth resistor R4 and the fifth resistor R5 set the first full power threshold, the first switch tube V1 can select an NPN transistor, and when the first switch tube V1 is turned on, it cooperates with the sixth resistor R6 to reduce the voltage value of the first full power threshold; the first comparator A1 can select an LM358 comparator; the third logic chip J3 can select an AND gate chip; the circuit composition structure of the power detection device is the same as the circuit composition structure of the second resistor R2, the third resistor R3, the first power supply VCC1, the fourth resistor R4, the fifth resistor R5, the first switch tube V1, the sixth resistor R6 and the first comparator A1, and the second full power threshold can be set, the voltage value of the second full power threshold can be adjusted, and the second energy storage device can be sampled and fully charged.

[0062] Further, the energy-saving power supply module 8 includes a first inverter J5, a fourth logic chip J4, a seventh power tube Q7 and a fifth diode D5;

[0063] Specifically, the input end of the first inverter J5 is connected to the IO7 end of the first controller U1, the output end of the first inverter J5 is connected to the A end of the fourth logic chip J4, the B end of the fourth logic chip J4 is connected to the F end of the third logic chip J3, the F end of the fourth logic chip J4 is connected to the IO8 end of the first controller U1, the gate of the seventh power tube Q7 and the gate of the sixth power tube Q6, the drain of the seventh power tube Q7 is connected to the first end of the first energy storage device, the source of the seventh power tube Q7 is connected to the anode of the fifth diode D5, and the cathode of the fifth diode D5 is connected to the first end of the first inductor L1.

[0064] In a specific embodiment, the first inverter J5 may be a NOT gate chip; the fourth logic chip J4 may be an AND gate chip; and the seventh power tube Q7 may be an N-channel field effect tube.

[0065] In the energy-saving control circuit of a washing machine controller of the present embodiment, the mains interface is connected to the mains power supply, the mains power is connected, the first rectifier T1 and the first capacitor C1 perform rectification and filtering processing, when the IO1 end of the first controller U1 controls the first power tube Q1 to be turned on, the first inductor L1 and the second power tube Q2 are cooperated to step down the rectified and filtered power, and power is supplied to the washing machine motor module 2, the IO4 end and the IO6 end of the first controller U1 respectively control the conduction of the first transistor G1 and the fourth transistor G4, so that the first motor M1 rotates forward, and when it is necessary to control the first motor M1 to reverse, there is a braking process for a certain period of time, that is, the IO4 end and the IO6 end of the first controller U1 stop controlling the first transistor The first controller U1 controls the conduction of the second transistor G2 and the third transistor G3, and the IO3 and IO5 terminals of the first controller U1 respectively control the conduction of the second transistor G2 and the third transistor G3. By changing the transmission direction of the electric energy, the first motor M1 is braked. During the braking process, the IO7 terminal of the first controller U1 will output a first braking signal. At the same time, the first controller U1 stops controlling the conduction of the first power tube Q1 and controls the conduction of the second power tube Q2 by the IO2 terminal of the first controller U1. In addition, the F terminal of the first logic chip J1 outputs a high level to control the conduction of the fourth power tube Q4, so that the first motor M1 generates regenerative electric energy that is boosted by the first inductor L1, the second power tube Q2 and the second diode D2, and then transmitted through the fourth power tube Q4. The first energy storage device stores the energy of the first motor M1. After the braking is completed, the first braking signal is stopped, and the first motor M1 is reversed. Similarly, when the reverse rotation is changed to the forward rotation, the IO7 terminal of the first controller U1 outputs the first braking signal again. At this time, the F terminal of the second logic chip J2 controls the third power tube Q3 to be turned on. At this time, the second energy storage device stores the regenerative electric energy generated by the first motor M1. This is repeated. The second resistor R2 and the third resistor R3 sample the electric quantity of the first energy storage device. When the sampled signal is greater than the first full-charge threshold set by the first power supply VCC1, the fourth resistor R4 and the fifth resistor R5, the first comparator A1 outputs a high level and controls the first switch tube V1 to be turned on, so that the sixth resistor R6 and the fifth resistor R5 are connected. The resistor R5 is connected in parallel to reduce the voltage value of the first full-charge threshold value, and the first energy storage device can be discharged. At the same time, after the power detection device detects that the second energy storage device is fully charged, the F end of the third logic chip J3 will control the B end of the fourth logic chip J4 to become a high level. If the IO7 end of the first controller U1 does not output the first braking signal at this time, it means that the first motor M1 is in a forward or reverse state at this time. After being inverted by the first inverter J5, the F end of the fourth logic chip J4 will output a high level and control the seventh power tube Q7 and the fifth power tube Q5 to be turned on, and the sixth power tube Q6 to be turned off, so that the first energy storage device and the second energy storage device are connected in series and the seventh power tube Q7 is used to power the washing machine motor module 2. At this time, the first power tube Q1 is turned off. Similarly,During the process of the first energy storage device and the second energy storage device supplying power in series, braking occurs, and the first energy storage device and the second energy storage device continue to perform alternating energy storage work.

[0066] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0067] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An energy-saving control circuit for a washing machine controller, characterized in that: The energy-saving control circuit of the washing machine controller includes: a power bidirectional control module, a washing machine motor module, an intelligent control module, a first energy storage module, a second energy storage module, a connection control module, a power detection module and an energy-saving power supply module; The power bidirectional control module is connected to the intelligent control module, the washing machine motor module and the energy-saving control module, and is used to access the mains power and perform rectification and filtering on the mains power, and when receiving the first pulse signal output by the intelligent control module, the rectified and filtered power is stepped down and the first power is output, and when receiving the second pulse signal output by the intelligent control module, the regenerated power generated by the washing machine motor module is stepped up and the second power is output, and the power output by the energy-saving control module is transmitted to the washing machine motor module; The washing machine motor module is connected to the intelligent control module, and is used to receive the electric energy output by the power bidirectional control module, and performs forward rotation when receiving the first driving signal output by the intelligent control module, and performs reverse rotation when receiving the second driving signal output by the intelligent control module, and generates regenerative electric energy during the period when the forward rotation is converted to the reverse rotation or the reverse rotation is converted to the forward rotation; The intelligent control module is connected to the energy-saving power supply module, and is used to output a first pulse signal when controlling the washing machine motor module to rotate forward or reverse, output a first brake signal and a second pulse signal during the period when the forward rotation is converted to reverse rotation or the reverse rotation is converted to forward rotation, output a first drive signal and control the forward rotation of the washing machine motor module, output a second drive signal and control the reverse rotation of the washing machine motor module, and stop outputting the first pulse signal when receiving the first control signal output by the energy-saving power supply module; The first energy storage module is connected to the intelligent control module and the power bidirectional control module, and is used to output a first level signal and store second electric energy when receiving a first driving signal and a first braking signal, so as to release the stored electric energy; The second energy storage module is connected to the intelligent control module and the power bidirectional control module, and is used to output a second level signal and store second electric energy when receiving the second driving signal and the first braking signal, so as to release the stored electric energy; The connection control module is connected to the first energy storage module, the second energy storage module and the energy-saving power supply module, and is used to control the first energy storage module and the second energy storage module to be connected in series upon receiving a first control signal output by the energy-saving power supply module; The power detection module is connected to the first energy storage module and the second energy storage module, and is used to set a first full-power threshold and a second full-power threshold, perform power sampling on the first energy storage module and output a first detection signal, perform power sampling on the second energy storage module and output a second detection signal, when the first detection signal is greater than the first full-power threshold, reduce the voltage value of the first full-power threshold and output a third control signal, when the second detection signal is greater than the second full-power threshold, reduce the voltage value of the second full-power threshold and output a fourth control signal, and when the third control signal and the fourth control signal are output simultaneously, output a fifth control signal; The energy-saving power supply module is connected to the first energy storage module and the power detection module, and is used to output the first control signal and transmit the electric energy released by the first energy storage module to the power bidirectional control module when receiving the fifth control signal and the first braking signal.

2. The energy-saving control circuit of a washing machine controller according to claim 1, characterized in that: The power bidirectional control module includes a mains interface, a first rectifier, a first capacitor, a first power tube, a second power tube, a first inductor and a second capacitor; the intelligent control module includes a first controller; The first end and the second end of the AC power interface are respectively connected to the first end and the second end of the first rectifier, the third end of the first rectifier is connected to the drain of the first power tube and is connected to the fourth end of the first rectifier, the source of the second power tube and one end of the second capacitor through the first capacitor, the source of the first power tube is connected to the drain of the second power tube and the first end of the first inductor, the second end of the first inductor is connected to the other end of the second capacitor, and the gate of the first power tube and the gate of the second power tube are respectively connected to the IO1 end and IO2 end of the first controller.

3. The energy-saving control circuit of a washing machine controller according to claim 2, characterized in that: The washing machine motor module includes a first transistor, a second transistor, a third transistor, a fourth transistor and a first motor; The collector of the first transistor is connected to the collector of the third transistor and the second end of the first inductor, the emitter of the first transistor is connected to the first end of the first motor and the collector of the second transistor, the emitter of the third transistor is connected to the collector of the fourth transistor and the second end of the first motor, the emitter of the fourth transistor and the emitter of the second transistor are both grounded, and the gate of the first transistor, the gate of the second transistor, the gate of the third transistor and the gate of the fourth transistor are respectively connected to the IO4 terminal, IO3 terminal, IO5 terminal and IO6 terminal of the first controller.

4. The energy-saving control circuit of a washing machine controller according to claim 2, characterized in that: The first energy storage module includes a second diode, a fourth power tube, a first energy storage device, a first logic chip and a third diode; The anode of the second diode is connected to the source of the first power tube, the cathode of the second diode is connected to the drain of the fourth power tube, the source of the fourth power tube is connected to the first end of the first energy storage device, the gate of the fourth power tube is connected to the F end of the first logic chip, the A end of the first logic chip is connected to the IO7 end of the first controller, the B end of the first logic chip is connected to the cathode of the third diode, and the anode of the third diode is connected to the IO3 end of the first controller.

5. The energy-saving control circuit of a washing machine controller according to claim 4, characterized in that: The second energy storage module includes a first diode, a third power tube, a second energy storage device, a second logic chip and a fourth diode; The anode of the first diode is connected to the source of the first power tube, the cathode of the first diode is connected to the drain of the third power tube, the source of the third power tube is connected to the second energy storage device, the second end of the second energy storage device is grounded, the gate of the third power tube is connected to the F end of the second logic chip, the A end and the B end of the second logic chip are respectively connected to the IO7 end of the first controller and the cathode of the fourth diode, and the anode of the fourth diode is connected to the IO4 end of the first controller.

6. The energy-saving control circuit of a washing machine controller according to claim 5, characterized in that: The connection control module includes a fifth power tube, a first resistor and a sixth power tube; The drain of the fifth power tube is connected to the second energy storage device, the source of the fifth power tube is connected to the second end of the first energy storage device and the source of the sixth power tube, the gate of the sixth power tube is connected to the gate of the fifth power tube and the energy-saving power supply module and connected to the drain of the sixth power tube and the ground terminal through the first resistor.

7. The energy-saving control circuit of a washing machine controller according to claim 6, characterized in that: The power detection module includes a second resistor, a third resistor, a first power supply, a fourth resistor, a fifth resistor, a first switch tube, a sixth resistor, a first comparator, a power detection device and a third logic chip; The in-phase end of the first comparator is connected to one end of the third resistor and to the first end of the first energy storage device through the second resistor, the other end of the third resistor is connected to the second end of the first energy storage device, the inverting end of the first comparator is connected to the collector of the first switch tube and one end of the fifth resistor and to the first power supply through the fourth resistor, the emitter of the first switch tube is connected to the other end of the fifth resistor and the ground through the sixth resistor, the output end of the first comparator is connected to the A end of the third logic chip and the base of the first switch tube, the B end of the first logic chip is connected to the output end of the power detection device, the first input end and the second input end of the power detection device are respectively connected to the first end and the second end of the second energy storage device, and the F end of the third logic chip is connected to the energy-saving power supply module.

8. The energy-saving control circuit of a washing machine controller according to claim 7, characterized in that: The energy-saving power supply module includes a first inverter, a fourth logic chip, a seventh power tube and a fifth diode; The input end of the first inverter is connected to the IO7 end of the first controller, the output end of the first inverter is connected to the A end of the fourth logic chip, the B end of the fourth logic chip is connected to the F end of the third logic chip, the F end of the fourth logic chip is connected to the IO8 end of the first controller, the gate of the seventh power tube and the gate of the sixth power tube, the drain of the seventh power tube is connected to the first end of the first energy storage device, the source of the seventh power tube is connected to the anode of the fifth diode, and the cathode of the fifth diode is connected to the first end of the first inductor.

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