CN107769590B

CN107769590B - Water purifier circuit with adapter power supply

Info

Publication number: CN107769590B
Application number: CN201711193331.1A
Authority: CN
Inventors: 汪军; 方桦; 杜兆麟
Original assignee: Guangdong Real Design Intelligent Technology Co Ltd
Current assignee: Guangdong Real Design Intelligent Technology Co Ltd
Priority date: 2017-11-24
Filing date: 2017-11-24
Publication date: 2024-04-05
Anticipated expiration: 2037-11-24
Also published as: CN107769590A

Abstract

The invention discloses a water purifier circuit with an adapter power supply, which comprises a micro-processing chip circuit, a power supply circuit and a detection circuit, wherein the power supply circuit has the function of supplying power; the detection circuit detects components of the water purifier; the power supply circuit and the detection circuit are integrated into one circuit board; the power supply circuit comprises a first power supply sub-circuit and a second power supply sub-circuit, and the first power supply sub-circuit provides 24V direct current for a booster pump and an electromagnetic valve of the water purifier; the output stage of the first power supply sub-circuit is electrically connected with the input stage of the second power supply sub-circuit; the second power supply sub-circuit provides 5V direct current for the micro-processing chip of the water purifier. According to the invention, the 24V adapter and the control panel are integrated on the same circuit panel, so that the manual installation cost and the shell material cost of the power adapter are saved, and the power wire cost of the control panel is also saved; the whole water purifier has smaller volume, and is beneficial to the design of manufacturers of the water purifier and the assembly of the whole water purifier.

Description

Water purifier circuit with adapter power supply

Technical Field

The invention relates to the field of water purifier design, in particular to a water purifier circuit with an adapter power supply.

Background

At present, with the attention of people on water quality safety and physical health, the household water purifier is vigorously developed in the household appliance industry in China, and particularly the development of the reverse osmosis water purifier is promoted. The cost of the reverse osmosis water purifier is high, so that the cost of the reverse osmosis household water purifier on the market is high. In the current water purifier industry, the water purifier electrical control design generally comprises: a power adapter with a shell for outputting 24VDC at 100V-240V-50/60 HZ and a control panel for supplying 24 VDC. The design results in the large whole volume of the water purifier, and the wire cost and the installation cost are high, which is not beneficial to the design of manufacturers and the assembly of the whole machine.

Disclosure of Invention

The invention overcomes the design mode of the traditional water purifier and provides a novel water purifier circuit with an adapter power supply. According to the invention, the 24V adapter and the control panel are integrated on the same circuit panel, so that the manual installation cost and the shell material cost of the power adapter are saved, and the power wire cost of the control panel is also saved; the whole water purifier has smaller volume, and is beneficial to the design of manufacturers of the water purifier and the assembly of the whole water purifier.

In order to solve the technical problems, the technical scheme of the invention is as follows:

A water purifier circuit with an adapter power supply comprises a micro-processing chip circuit, a power supply circuit and a detection circuit,

the power supply circuit has the function of supplying power;

the detection circuit detects components of the water purifier;

the power supply circuit and the detection circuit are integrated into a circuit board;

the power supply circuit comprises a first power supply sub-circuit and a second power supply sub-circuit, wherein,

the first power supply sub-circuit provides 24V direct current for a booster pump and an electromagnetic valve of the water purifier;

the output stage of the first power supply sub-circuit is electrically connected with the input stage of the second power supply sub-circuit;

the second power supply sub-circuit provides 5V direct current for a micro-processing chip of the water purifier.

In a preferred embodiment, the first power sub-circuit includes a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, a first diode, a second diode, a third diode, a fourth diode, a fifth diode, a sixth diode, a seventh diode, an eighth diode, a first zener diode, a second zener diode, a first light emitting diode, a first NPN triode, a first electrolytic capacitor, a second electrolytic capacitor, a third electrolytic capacitor, a varistor, a fuse, a common mode inductor, a three winding transformer, a first N-channel MOS diode, and a first voltage chip,

The input stage of the first power supply sub-circuit comprises two input ends ACL and ACN;

the output stage of the first power supply sub-circuit comprises two output ends C1.1 and C1.2;

the first voltage chip comprises 6 pins, namely RI, FB, GND, SENSE, VDD and GATA respectively;

the ACL is electrically connected with one end of the fuse;

the other end of the fuse is electrically connected with one end of the first capacitor;

the ACN is electrically connected with the other end of the first capacitor;

one end of the first capacitor is electrically connected with one end of the first resistor;

the other end of the first resistor is electrically connected with one end of the second resistor;

the other end of the first capacitor is electrically connected with the other end of the second resistor;

the other end of the first resistor is electrically connected with one end of the first zener diode;

the other end of the first resistor is electrically connected with one end of the seventh capacitor;

the other end of the first voltage stabilizing diode is electrically connected with the other end of the seventh capacitor;

the other end of the first resistor is electrically connected with the anode of the first electrolytic capacitor;

the cathode of the first electrolytic capacitor is grounded in a digital manner;

the other end of the first resistor is connected with a power supply;

The other end of the first resistor is electrically connected with the cathode of the first diode;

the anode of the first diode is electrically connected with the first end of the first winding of the three-winding transformer;

the second end of the first winding of the three-winding transformer is connected with digital ground;

one end of the first capacitor is electrically connected with one end of the piezoresistor;

the other end of the piezoresistor is electrically connected with the other end of the first capacitor;

one end of the first capacitor is electrically connected with the first input end of the common-mode inductor;

the other end of the first capacitor is electrically connected with the second input end of the common-mode inductor;

the first output end of the common-mode inductor is electrically connected with the anode of the second diode;

the first output end of the common-mode inductor is electrically connected with the cathode of the fourth diode;

the second output end of the common mode inductor is electrically connected with the anode of the third diode;

the second output end of the common mode inductor is electrically connected with the cathode of the fifth diode;

the cathode of the second diode is electrically connected with the cathode of the third diode;

the anode of the fourth diode is electrically connected with the anode of the fifth diode;

the cathode of the second diode is electrically connected with the anode of the second electrolytic capacitor;

The anode of the fourth diode is electrically connected with the cathode of the second electrolytic capacitor;

the cathode of the second electrolytic capacitor is grounded in number;

the anode of the second electrolytic capacitor is electrically connected with one end of the third resistor;

the anode of the second electrolytic capacitor is electrically connected with one end of the second capacitor;

the other end of the third resistor is electrically connected with the other end of the second capacitor;

the other end of the second capacitor is electrically connected with the cathode of the seventh diode;

the anode of the second electrolytic capacitor is electrically connected with one end of the third capacitor;

the other end of the third capacitor is electrically connected with the anode of the seventh diode;

one end of the third capacitor is electrically connected with the first output end of the second winding of the three-winding transformer;

the other end of the third capacitor is electrically connected with the second output end of the second winding of the three-winding transformer;

the other end of the third capacitor is electrically connected with the drain electrode of the first N-channel MOS tube;

the source electrode of the first N-channel MOS tube is electrically connected with one end of the ninth resistor;

the other end of the ninth resistor is connected with digital ground;

the grid electrode of the first N-channel MOS tube is electrically connected with one end of the fifth resistor;

The other end of the fifth resistor is electrically connected with the anode of the sixth diode;

the cathode of the sixth diode is electrically connected with the GATA pin of the first voltage chip;

the grid electrode of the first N-channel MOS tube is electrically connected with one end of the sixth resistor;

the other end of the sixth resistor is electrically connected with the cathode of the sixth diode;

the grid electrode of the first N-channel MOS tube is electrically connected with one end of the seventh resistor;

the source electrode of the first N-channel MOS tube is electrically connected with the other end of the seventh resistor;

the SENSE pin of the first voltage chip is electrically connected with one end of the eighth resistor;

the other end of the eighth resistor is electrically connected with one end of the ninth resistor;

the SENSE pin of the first voltage chip is electrically connected with one end of the fifth capacitor;

the other end of the fifth capacitor is connected with digital ground;

the GND pin of the first voltage chip is grounded in a digital mode;

the VCC pin of the first voltage chip is connected with a power supply;

the RI pin of the first voltage chip is electrically connected with one end of the tenth resistor;

the other end of the tenth resistor is connected with digital ground;

the FB pin of the first voltage chip is electrically connected with one end of the sixth capacitor;

The other end of the sixth capacitor is connected with digital ground;

the FB pin of the first voltage chip is electrically connected with the collector electrode of the first photosensitive NPN triode;

the emitting stage of the first photosensitive NPN triode is grounded digitally;

the first photosensitive NPN triode is in signal connection with the first light-emitting diode in a photoelectric isolation mode;

the anode of the first light-emitting diode is electrically connected with one end of the eleventh resistor;

one end of the eleventh resistor is electrically connected with one end of the twelfth resistor;

the other end of the twelfth resistor is electrically connected with the cathode of the first light-emitting diode;

the cathode of the first light-emitting diode is electrically connected with the cathode of the second zener diode;

the anode of the first light-emitting diode is grounded in an analog mode;

the first input end of the third winding of the three-winding transformer is electrically connected with the anode of the eighth diode;

the anode of the eighth diode is electrically connected with one end of the fourth capacitor;

the other end of the fourth capacitor is electrically connected with one end of the fourth resistor;

the other end of the fourth resistor is electrically connected with the cathode of the eighth diode;

the cathode of the eighth diode is electrically connected with the anode of the third electrolytic capacitor;

The second input end of the third winding of the three-winding transformer is electrically connected with the cathode of the third electrolytic capacitor;

the cathode of the third electrolytic capacitor is grounded and is used as an output end C1.2 of the first power supply subcircuit;

the anode of the third electrolytic capacitor is used as the output end C1.1 of the first power supply subcircuit.

In a preferred embodiment, the second power supply sub-circuit includes a second voltage chip, a thirteenth resistor, an eighth capacitor, a ninth capacitor, a fourth electrolytic capacitor, a ninth diode, and an inductor, wherein,

the input stage of the second power supply sub-circuit comprises two input ends R1.1 and R1.2;

the output stage of the second power supply sub-circuit comprises two output ends C2.1 and C2.2;

the second voltage chip comprises 8 pins, namely 4 pins GND, VIN, VOUT, FB and ON/OFF;

the R1.1 is electrically connected with the C1.1;

the R1.2 is electrically connected with the C1.2;

the R1.1 is electrically connected with one end of the thirteenth resistor;

the R1.2 is electrically connected with the other end of the thirteenth resistor;

the R1.1 is electrically connected with one end of the eighth capacitor;

the R1.2 is electrically connected with the other end of the eighth capacitor;

The R1.1 is electrically connected with the VIN pin of the second voltage chip;

the R1.2 is electrically connected with 4 GND pins of the second voltage chip;

the R1.2 is electrically connected with an ON/OFF pin of the second voltage chip;

the R1.2 is electrically connected with the anode of the ninth diode;

the cathode of the ninth diode is electrically connected with the VOUT pin of the second voltage chip;

the VOUT pin of the second voltage chip is electrically connected with one end of the inductor;

the other end of the inductor is electrically connected with the FB pin of the second voltage chip;

the other end of the inductor is electrically connected with the anode of the fourth electrolytic capacitor;

the cathode of the fourth electrolytic capacitor is electrically connected with the anode of the ninth diode;

the anode of the fourth electrolytic capacitor is electrically connected with one end of the ninth capacitor;

the cathode of the fourth electrolytic capacitor is electrically connected with the other end of the ninth capacitor;

the anode of the fourth electrolytic capacitor is used as an output end C2.1 of the second power supply subcircuit;

the cathode of the fourth electrolytic capacitor is grounded in an analog mode, and serves as an output end C2.2 of the second power supply subcircuit.

In a preferred scheme, the detection circuit comprises a low-voltage switch detection sub-circuit, a high-voltage switch detection sub-circuit, a floating ball monitoring sub-circuit and a water leakage detection sub-circuit, wherein,

The low-voltage switch detection sub-circuit is used for detecting the on/off state of a low-voltage switch of the water purifier;

the high-voltage switch detection sub-circuit is used for detecting the on/off state of a high-voltage switch of the water purifier;

the floating ball monitoring sub-circuit is used for detecting the positions of a high floating ball and a low floating ball of the water tank of the water purifier;

the water leakage detection sub-circuit is used for detecting whether the water purifier leaks or not.

In a preferred embodiment, the low voltage switch detection sub-circuit includes a low voltage switch detection module, a fourteenth resistor, a fifteenth resistor, and a tenth capacitor, wherein,

the output end LS of the low-voltage switch detection sub-circuit is electrically connected with the first input end of the micro-processing chip circuit;

the output stage of the low-voltage switch detection module comprises two pins, namely a low-voltage switch 1 pin and a low-voltage switch 2 pin;

the pin 1 of the low-voltage switch is electrically connected with one end of a fourteenth resistor;

the pin 1 of the low-voltage switch is electrically connected with one end of the fifteenth resistor;

the other end of the fifteenth resistor is connected with a 5V power supply;

the other end of the fourteenth resistor is electrically connected with one end of the tenth capacitor;

the other end of the tenth capacitor is electrically connected with the pin 2 of the low-voltage switch;

The other end of the tenth capacitor is connected with analog ground;

the other end of the fourteenth resistor is used as an output end LS of the low-voltage switch detection subcircuit;

the high voltage switch detection subcircuit includes a high voltage switch detection module, a sixteenth resistor, a seventeenth resistor, and an eleventh capacitor, wherein,

the output end HS of the high-voltage switch detection sub-circuit is electrically connected with the second input end of the micro-processing chip circuit;

the output stage of the high-voltage switch detection module comprises two pins, namely a high-voltage switch 1 pin and a high-voltage switch 2 pin;

the pin 1 of the high-voltage switch is electrically connected with one end of the sixteenth resistor;

the pin 1 of the low-voltage switch is electrically connected with one end of a seventeenth resistor;

the other end of the seventeenth resistor is connected with a 5V power supply;

the other end of the sixteenth resistor is electrically connected with one end of the eleventh capacitor;

the other end of the eleventh capacitor is electrically connected with the pin 2 of the high-voltage switch;

the other end of the eleventh capacitor is connected with analog ground;

the other end of the sixteenth resistor is used as an output end HS of the high-voltage switch detection subcircuit.

In a preferred scheme, the water leakage detection sub-circuit comprises a water leakage detection module, an eighteenth resistor, a nineteenth resistor, a twentieth resistor, a twelfth capacitor, a thirteenth capacitor, a fourteenth capacitor and a first NPN triode, wherein,

The output end WATER of the WATER leakage detection sub-circuit is electrically connected with the third input end of the micro-processing chip circuit;

the output stage of the water leakage detection module comprises two pins, namely a pin 1 of the water leakage detection module and a pin 2 of the water leakage detection module;

the water leakage detection module 1 is connected with a 24V power supply through a pin;

the pin 1 of the water leakage detection module is electrically connected with one end of the twelfth capacitor;

the pin 2 of the water leakage detection module is electrically connected with the other end of the twelfth capacitor;

the pin 2 of the water leakage detection module is electrically connected with one end of the twentieth resistor;

the other end of the twentieth resistor is electrically connected with the base electrode of the first NPN triode;

the pin 2 of the water leakage detection module is electrically connected with one end of the thirteenth capacitor;

the other end of the thirteenth capacitor is connected with analog ground;

the other end of the twentieth resistor is electrically connected with one end of the nineteenth resistor;

the other end of the nineteenth resistor is connected with analog ground;

the emitter of the first NPN triode is grounded in an analog mode;

the collector electrode of the first NPN triode is electrically connected with one end of the eighteenth resistor;

the other end of the eighteenth resistor is connected with a 5V power supply;

the collector electrode of the first NPN triode is electrically connected with one end of the fourteenth capacitor;

The emitter of the first NPN triode is electrically connected with the other end of the fourteenth capacitor;

the collector electrode of the first NPN triode is used as an output end WATER of the WATER leakage detection subcircuit.

In a preferred embodiment, the floating ball monitoring sub-circuit includes a floating ball monitoring module, a twenty-first resistor, a twenty-second resistor, a twenty-third resistor, a twenty-fourth resistor, a fifteenth capacitor, a sixteenth capacitor, wherein,

the output stage of the floating ball monitoring sub-circuit comprises 2 output ends HI_SW and LO_SW, and the HI_SW is electrically connected with a third input end of the micro-processing chip circuit; the LO_SW is electrically connected with a fourth input end of the micro-processing chip circuit;

the output stage of the floating ball monitoring module comprises three pins, namely a pin 1 of the floating ball monitoring module, a pin 2 of the floating ball monitoring module and a pin 3 of the floating ball monitoring module;

the pin 1 of the floating ball monitoring module is electrically connected with one end of a twenty-first resistor;

the other end of the twenty-first resistor is connected with a 5V power supply;

the pin 1 of the floating ball monitoring module is electrically connected with one end of a twenty-second resistor;

the other end of the twenty-second resistor is electrically connected with one end of the fifteenth capacitor;

The other end of the fifteenth capacitor is connected with analog ground;

the foot of the floating ball monitoring module 2 is connected with the analog ground;

the pin 3 of the floating ball monitoring module is electrically connected with one end of a twenty-fourth resistor;

the other end of the twenty-fourth resistor is connected with a 5V power supply;

the pin 3 of the floating ball monitoring module is electrically connected with one end of a twenty-third resistor;

the other end of the twenty-third resistor is electrically connected with one end of the sixteenth capacitor;

the other end of the sixteenth capacitor is connected with analog ground;

the other end of the twenty-second resistor is used as an output end HI_SW of the floating ball monitoring subcircuit;

the other end of the twenty-third resistor is used as an output end LO_SW of the floating ball monitoring subcircuit.

In a preferred scheme, the water purifier circuit further comprises a 24V transmission circuit, the 24V transmission circuit transmits 24V direct current to a booster pump and a solenoid valve of the water purifier, the 24V transmission circuit comprises a twenty-fifth resistor, a twenty-sixth resistor, a twenty-seventh resistor, a twenty-eighth resistor, a twenty-ninth resistor, a thirty-first resistor, a thirty-second resistor, a thirty-third resistor, a thirty-fourth resistor, a thirty-fifth resistor, a twelfth pole tube, an eleventh diode, a twelfth diode, a thirteenth diode, a fourteenth diode, a fifteenth diode, a second N-channel MOS tube, a third N-channel MOS tube, a fourth N-channel MOS tube, a fifth N-channel MOS tube, a sixth N-channel MOS tube and a seventh N-channel MOS tube, wherein,

The 24V transmission circuit comprises 6 input ends, which are respectively defined as IN_ V, CL _ V, HEAT _ V, COLD _ V, PU and EX_PU;

the 24V transmission circuit comprises 6 output ends, which are respectively defined as IN_OUT, CX_OUT, HEAT_OUT, COLD_OUT, PU_OUT and EX_OUT;

the IN_V is electrically connected with one end of the twenty-fifth resistor;

the other end of the twenty-fifth resistor is electrically connected with the grid electrode of the second N channel MOS;

the other end of the twenty-fifth resistor is electrically connected with one end of the twenty-sixth resistor;

the other end of the twenty-sixth resistor is connected with analog ground;

the source electrode of the second N channel MOS is grounded in an analog mode;

the drain electrode of the second N channel MOS is electrically connected with the anode of the twelfth electrode tube;

the cathode of the twelfth electrode tube is connected with a 24V power supply;

the drain electrode of the second N channel MOS is used as an output end IN_OUT of the 24V transmission circuit;

the CL_V is electrically connected with one end of the twenty-seventh resistor;

the other end of the twenty-seventh resistor is electrically connected with the grid electrode of the third N channel MOS;

the other end of the twenty-seventh resistor is electrically connected with one end of the twenty-eighth resistor;

the other end of the twenty-eighth resistor is connected with analog ground;

The source electrode of the third N channel MOS is grounded in an analog mode;

the drain electrode of the third N channel MOS is electrically connected with the anode of the eleventh diode;

the cathode of the eleventh diode is connected with a 24V power supply;

the drain electrode of the third N channel MOS is used as an output end CX_OUT of the 24V transmission circuit;

the HEAT_V is electrically connected with one end of the twenty-ninth resistor;

the other end of the twenty-ninth resistor is electrically connected with the grid electrode of the fourth N channel MOS;

the other end of the twenty-ninth resistor is electrically connected with one end of the thirty-eighth resistor;

the other end of the thirty-second resistor is connected with analog ground;

the source electrode of the fourth N channel MOS is grounded in an analog mode;

the drain electrode of the fourth N channel MOS is electrically connected with the anode of the twelfth diode;

the cathode of the twelfth diode is connected with a 24V power supply;

the drain electrode of the fourth N channel MOS is used as an output end HEAT_OUT of the 24V transmission circuit;

the COLD_V is electrically connected with one end of the thirty-first resistor;

the other end of the thirty-first resistor is electrically connected with the grid electrode of the fifth N channel MOS;

the other end of the thirty-first resistor is electrically connected with one end of the thirty-second resistor;

the other end of the thirty-second resistor is connected with analog ground;

The source electrode of the fifth N channel MOS is grounded in an analog mode;

the drain electrode of the fifth N channel MOS is electrically connected with the anode of the thirteenth diode;

the cathode of the thirteenth diode is connected with a 24V power supply;

the drain electrode of the fifth N channel MOS is used as an output end COLD_OUT of the 24V transmission circuit;

the PU is electrically connected with one end of the thirty-third resistor;

the other end of the thirty-third resistor is electrically connected with the grid electrode of the sixth N-channel MOS;

the other end of the thirty-third resistor is electrically connected with one end of the thirty-fourth resistor;

the other end of the thirty-fourth resistor is connected with analog ground;

the source electrode of the sixth N channel MOS is grounded in an analog mode;

the drain electrode of the sixth N channel MOS is electrically connected with the anode of the fourteenth diode;

the cathode of the fourteenth diode is connected with a 24V power supply;

the drain electrode of the sixth N channel MOS is used as an output end PU_OUT of the 24V transmission circuit;

the EX_PU is electrically connected with one end of the thirty-fifth resistor;

the other end of the thirty-fifth resistor is electrically connected with the grid electrode of the seventh N-channel MOS;

the other end of the thirty-fifth resistor is electrically connected with one end of the thirty-sixth resistor;

the other end of the thirty-sixth resistor is connected with analog ground;

The source electrode of the seventh N channel MOS is grounded in an analog mode;

the drain electrode of the seventh N channel MOS is electrically connected with the anode of the fifteenth diode;

the cathode of the fifteenth diode is connected with a 24V power supply;

the drain electrode of the seventh N channel MOS is used as the output end EX_OUT of the 24V transmission circuit.

In a preferred scheme, the water purifier circuit further comprises a relay circuit, the relay circuit is used for controlling the starting of the heating body, the relay circuit comprises a thirty-seventh resistor, a thirty-eighth resistor, a thirty-ninth resistor, a forty-first resistor, a second NPN triode, a sixteenth diode, a seventeenth diode, a second light emitting diode, a second phototriode, a relay, HEAT1 and HEAT2, wherein,

the HEAT1 is positioned at the common end of the heating body and the temperature control sensor;

the HEAT2 is positioned at the independent end of the temperature control sensor;

the relay circuit has two ports, defined as HEAT and WKQ;

one end of the thirty-seventh resistor is used as one end HEAT of the relay circuit, and the other end of the thirty-seventh resistor is electrically connected with one end of the thirty-eighth resistor;

the other end of the thirty-eighth resistor is connected with analog ground;

The other end of the thirty-eighth resistor is electrically connected with the emitter of the second NPN triode;

the collector electrode of the second NPN triode is electrically connected with the anode of the seventeenth diode;

the collector electrode of the second NPN triode is electrically connected with the first input end of the relay;

the cathode of the seventeenth diode is electrically connected with the second input end of the relay;

the HEAT2 is electrically connected with one end of the thirty-ninth resistor;

the other end of the thirty-ninth resistor is electrically connected with the cathode of the second light-emitting diode;

the anode of the second light-emitting diode is electrically connected with the cathode of the sixteenth diode;

the anode of the sixteenth diode is electrically connected with one end of the forty resistor;

the other end of the forty resistor is electrically connected with HEAT 1;

the second photosensitive NPN triode is in signal connection with the second light-emitting diode in a photoelectric isolation mode;

the emitter of the second photosensitive NPN triode is grounded in an analog mode;

the collector electrode of the second photosensitive NPN triode is electrically connected with one end of the forty-first resistor;

the other end of the forty-first resistor is connected with a 5V power supply;

the collector of the second photo NPN transistor serves as one end WKQ of the relay circuit.

In a preferred embodiment, the micro-processing chip circuit includes a micro-processing chip, a forty-two resistor, a forty-three resistor, a forty-four resistor, a forty-five resistor, a seventeenth capacitor, an eighteenth capacitor, a nineteenth capacitor, a twentieth capacitor, a twenty first capacitor, a twenty second capacitor, a buzzer, an LCD display screen, wherein,

the buzzer is provided with two ports, which are defined as a buzzer 1 and a buzzer 2;

the LCD display screen comprises 4 ports, which are defined as LCD1, LCD2, LCD3 and LCD4;

the microprocessor chip includes 19 ports, defined as VSS, LS, WATER, N/MRST, LO_SW, HI_ SW, WKQ, HEAT, BUZ, PU, IN _ V, CL _ V, HEAT _ V, COLD _ V, EX _ PU, HS, RX, TX and VDD,

the same ports are electrically connected with each other;

the VSS port is grounded in an analog mode;

the N/MRST port is electrically connected with one end of the twenty-second capacitor;

the other end of the twenty-second capacitor is connected with analog ground;

the N/MRST port is electrically connected with one end of the forty-second resistor;

the other end of the forty-second resistor is connected with a 5V power supply;

the BUZ port is electrically connected with one end of the forty-third resistor;

The other end of the forty-third resistor is electrically connected with the port of the buzzer 1;

the 2 port of the buzzer is connected with a 5V power supply;

the RX port is electrically connected with one end of the forty-fourth resistor;

the other end of the forty-fourth resistor is electrically connected with the LCD 4;

the other end of the forty-fourth resistor is electrically connected with one end of the twentieth capacitor;

the other end of the twentieth capacitor is connected with analog ground;

the TX port is electrically connected with one end of the forty-fifth resistor;

the other end of the forty-fifth resistor is electrically connected with the LCD 3;

the other end of the forty-fifth resistor is electrically connected with one end of the nineteenth capacitor;

the other end of the nineteenth capacitor is connected with analog ground;

the LCD2 is grounded in an analog mode;

the LCD1 is connected with a 5V power supply;

the LCD1 is electrically connected with one end of the eighteenth capacitor;

the other end of the eighteenth capacitor is connected with analog ground.

Compared with the prior art, the technical scheme of the invention has the beneficial effects that:

according to the invention, the 24V adapter and the control panel are integrated on the same circuit panel, so that the manual installation cost and the shell material cost of the power adapter are saved, and the power wire cost of the control panel is also saved; the whole water purifier has smaller volume, and is beneficial to the design of manufacturers of the water purifier and the assembly of the whole water purifier.

Drawings

Fig. 1 is a block diagram of the present embodiment.

Fig. 2 is a power circuit diagram of the present embodiment.

Fig. 3 is a diagram of a low/high voltage switch detection circuit according to the present embodiment.

Fig. 4 is a circuit diagram of the water leakage detection of the present embodiment.

Fig. 5 is a circuit diagram of the floating ball monitoring in this embodiment.

Fig. 6 is a 24V transmission circuit diagram of the present embodiment.

Fig. 7 is a circuit diagram of the relay according to the present embodiment.

Fig. 8 is a circuit diagram of the RD8F01AS1004 of the present embodiment.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the present patent;

for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions;

it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The technical scheme of the invention is further described below with reference to the accompanying drawings and examples.

As shown in FIG. 1, the water purifier circuit with the adapter power supply comprises a micro-processing chip circuit, a power supply circuit, a low-voltage switch detection circuit, a high-voltage switch detection circuit, a floating ball monitoring circuit, a water leakage detection circuit, a 24V transmission circuit and a relay circuit,

the power supply circuit plays a role of supplying power;

the low-voltage switch detection circuit, the high-voltage switch detection circuit, the floating ball monitoring circuit, the water leakage detection circuit, the 24V transmission circuit and the relay circuit are respectively and electrically connected with the micro-processing chip circuit;

The low-voltage switch detection circuit is used for detecting the on/off state of a low-voltage switch of the water purifier;

the high-voltage switch detection circuit is used for detecting the on/off state of a high-voltage switch of the water purifier;

the floating ball monitoring circuit is used for detecting the positions of a high floating ball and a low floating ball of the water tank of the water purifier;

the water leakage detection circuit is used for detecting whether water leakage occurs in the water purifier or not;

the relay circuit is used for controlling the starting of the heating element;

the 24V transmission circuit transmits 24V direct current to a booster pump and an electromagnetic valve of the water purifier;

all circuits are integrated into the same circuit board.

As shown in fig. 2, the power supply circuits include a first power supply circuit and a second power supply circuit, wherein,

the first power supply circuit provides 24V direct current for a booster pump and an electromagnetic valve of the water purifier;

the output stage of the first power supply circuit is electrically connected with the input stage of the second power supply circuit;

the second power supply circuit provides 5V direct current for the micro-processing chip of the water purifier,

the first power supply circuit includes a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, a first diode, a second diode, a third diode, a fourth diode, a fifth diode, a sixth diode, a seventh diode, an eighth diode, a first zener diode, a second zener diode, a first light emitting diode, a first NPN transistor, a first electrolytic capacitor, a second electrolytic capacitor, a third electrolytic capacitor, a varistor, a fuse, a common mode inductor, a three-winding transformer, a first N-channel MOS transistor, and a PR6865 voltage chip,

The input stage of the first power supply circuit comprises two input ends ACL and ACN;

the output stage of the first power supply circuit comprises two output terminals C1.1 and C1.2;

the PR6865 voltage chip includes 6 pins, RI, FB, GND, SENSE, VDD and GATA respectively;

the ACL is electrically connected with one end of the fuse;

the ACN is electrically connected with the other end of the first capacitor;

the cathode of the first electrolytic capacitor is grounded digitally;

the other end of the first resistor is connected with a power supply;

The second end of the first winding of the three-winding transformer is digitally grounded;

the first output end of the common mode inductor is electrically connected with the anode of the second diode;

the first output end of the common mode inductor is electrically connected with the cathode of the fourth diode;

the cathode of the second electrolytic capacitor is grounded digitally;

the other end of the third capacitor is electrically connected with a second output end of a second winding of the three-winding transformer;

the other end of the ninth resistor is connected with digital ground;

the grid electrode of the first N channel MOS tube is electrically connected with one end of the fifth resistor;

the grid electrode of the first N channel MOS tube is electrically connected with one end of the seventh resistor;

the source electrode of the first N channel MOS tube is electrically connected with the other end of the seventh resistor;

the other end of the fifth capacitor is connected with digital ground;

the GND pin of the first voltage chip is grounded;

the VCC pin of the first voltage chip is connected with a power supply;

the other end of the tenth resistor is connected with digital ground;

the other end of the sixth capacitor is connected with digital ground;

the emitter of the first photosensitive NPN triode is grounded digitally;

The anode of the first light-emitting diode is grounded in an analog mode;

the cathode of the third electrolytic capacitor is grounded and is used as an output end C1.2 of the first power supply circuit;

the anode of the third electrolytic capacitor serves as the output terminal C1.1 of the first power supply circuit.

The second power supply circuit comprises an XL1509 voltage chip, a thirteenth resistor, an eighth capacitor, a ninth capacitor, a fourth electrolytic capacitor, a ninth diode and an inductor, wherein,

the input stage of the second power supply circuit comprises two input terminals R1.1 and R1.2;

the output stage of the second power supply circuit comprises two output terminals C2.1 and C2.2;

the XL1509 voltage chip comprises 8 pins, namely 4 pins GND, VIN, VOUT, FB and ON/OFF;

R1.1 is electrically connected with C1.1;

r1.2 is electrically connected with C1.2;

r1.1 is electrically connected with one end of the thirteenth resistor;

r1.2 is electrically connected with the other end of the thirteenth resistor;

r1.1 is electrically connected with one end of the eighth capacitor;

r1.2 is electrically connected with the other end of the eighth capacitor;

r1.1 is electrically connected with the VIN pin of the second voltage chip;

r1.2 is electrically connected with 4 GND pins of the second voltage chip;

r1.2 is electrically connected with an ON/OFF pin of the second voltage chip;

r1.2 is electrically connected to the anode of the ninth diode;

the anode of the fourth electrolytic capacitor is used as an output end C2.1 of the second power supply circuit;

the cathode of the fourth electrolytic capacitor is grounded and is used as the output end C2.2 of the second power supply circuit.

As shown in fig. 3, the low voltage switch detection circuit includes a low voltage switch detection module, a fourteenth resistor, a fifteenth resistor, and a tenth capacitor, wherein,

the output end LS of the low-voltage switch detection circuit is electrically connected with the first input end of the micro-processing chip circuit;

the pin 1 of the low-voltage switch is electrically connected with one end of the fourteenth resistor;

the other end of the fifteenth resistor is connected with a 5V power supply;

the other end of the tenth capacitor is connected with analog ground;

the other end of the fourteenth resistor is used as an output end LS of the low-voltage switch detection circuit;

the high voltage switch detection circuit comprises a high voltage switch detection module, a sixteenth resistor, a seventeenth resistor and an eleventh capacitor, wherein,

the output end HS of the high-voltage switch detection circuit is electrically connected with the second input end of the micro-processing chip circuit;

the pin 1 of the low-voltage switch is electrically connected with one end of the seventeenth resistor;

the other end of the seventeenth resistor is connected with a 5V power supply;

the other end of the eleventh capacitor is connected with analog ground;

the other end of the sixteenth resistor is used as the output end HS of the high-voltage switch detection circuit.

As shown in fig. 4, the water leakage detection circuit includes a water leakage detection module, an eighteenth resistor, a nineteenth resistor, a twentieth resistor, a twelfth capacitor, a thirteenth capacitor, a fourteenth capacitor, a first NPN triode, wherein,

the output end WATER of the WATER leakage detection circuit is electrically connected with the third input end of the micro-processing chip circuit;

the output stage of the water leakage detection module comprises two pins, namely a 1 pin of the water leakage detection module and a 2 pin of the water leakage detection module;

the other end of the thirteenth capacitor is connected with analog ground;

the other end of the nineteenth resistor is connected with analog ground;

the emitter of the first NPN triode is grounded in an analog mode;

the collector of the first NPN triode is electrically connected with one end of the eighteenth resistor;

the other end of the eighteenth resistor is connected with a 5V power supply;

the collector electrode of the first NPN triode is used as an output end WATER of the WATER leakage detection circuit.

As shown in fig. 5, the floating ball monitoring circuit includes a floating ball monitoring module, a twenty-first resistor, a twenty-second resistor, a twenty-third resistor, a twenty-fourth resistor, a fifteenth capacitor, a sixteenth capacitor, wherein,

the output stage of the floating ball monitoring circuit comprises 2 output ends HI_SW and LO_SW, and the HI_SW is electrically connected with the third input end of the micro-processing chip circuit; the LO_SW is electrically connected with a fourth input end of the micro-processing chip circuit;

the other end of the twenty-first resistor is connected with a 5V power supply;

the other end of the fifteenth capacitor is connected with analog ground;

the other end of the sixteenth capacitor is connected with analog ground;

the other end of the twenty-second resistor is used as an output end HI_SW of the floating ball monitoring circuit;

the other end of the twenty-third resistor is used as an output end LO_SW of the floating ball monitoring circuit.

As shown in fig. 6, the 24V transmission circuit includes a twenty-fifth resistor, a twenty-sixth resistor, a twenty-seventh resistor, a twenty-eighth resistor, a twenty-ninth resistor, a thirty-fourth resistor, a thirty-first resistor, a thirty-second resistor, a thirty-third resistor, a thirty-fourth resistor, a thirty-fifth resistor, a twelfth diode, an eleventh diode, a twelfth diode, a thirteenth diode, a fourteenth diode, a fifteenth diode, a second N-channel MOS, a third N-channel MOS, a fourth N-channel MOS, a fifth N-channel MOS, a sixth N-channel MOS, and a seventh N-channel MOS, wherein,

The 24V transmission circuit includes 6 inputs, defined as in_ V, CL _ V, HEAT _ V, COLD _ V, PU and ex_pu, respectively;

the 24V transmission circuit comprises 6 output ends, which are respectively defined as IN_OUT, CX_OUT, HEAT_OUT, COLD_OUT, PU_OUT and EX_OUT; cold_out is used for a water purifier COLD water valve; heat_out is used for a water purifier hot water valve; IN_OUT is used for a water inlet valve of the water purifier; PU_OUT is used for a water valve of the water purifier; ex_out is used for a clean water flush valve.

In_v is electrically connected to one end of the twenty-fifth resistor;

the other end of the twenty-fifth resistor is electrically connected with the grid electrode of the second N-channel MOS;

the other end of the twenty-sixth resistor is connected with analog ground;

the source electrode of the second N channel MOS is grounded in an analog mode;

the cathode of the twelfth pole tube is connected with a 24V power supply;

cl_v is electrically connected to one end of the twenty-seventh resistor;

the other end of the twenty-seventh resistor is electrically connected with the grid electrode of the third N-channel MOS;

the other end of the twenty-eighth resistor is connected with analog ground;

The source electrode of the third N channel MOS is grounded in an analog mode;

the drain electrode of the third N channel MOS is electrically connected with the anode electrode of the eleventh diode;

the cathode of the eleventh diode is connected with a 24V power supply;

heat_v is electrically connected to one end of the twenty-ninth resistor;

the other end of the twenty-ninth resistor is electrically connected with the grid electrode of the fourth N-channel MOS;

the other end of the twenty-ninth resistor is electrically connected with one end of the thirty-first resistor;

the other end of the thirty-second resistor is connected with analog ground;

the source electrode of the fourth N channel MOS is grounded in an analog mode;

the drain electrode of the fourth N channel MOS is electrically connected with the anode electrode of the twelfth diode;

the cathode of the twelfth diode is connected with a 24V power supply;

cold_v is electrically connected to one end of the thirty-first resistor;

the other end of the thirty-second resistor is connected with analog ground;

the source electrode of the fifth N channel MOS is grounded in an analog mode;

the drain electrode of the fifth N channel MOS is electrically connected with the anode electrode of the thirteenth diode;

The cathode of the thirteenth diode is connected with a 24V power supply;

the PU is electrically connected with one end of the thirty-third resistor;

the other end of the thirty-fourth resistor is connected with analog ground;

the source electrode of the sixth N channel MOS is grounded;

the drain electrode of the sixth N channel MOS is electrically connected with the anode electrode of the fourteenth diode;

the cathode of the fourteenth diode is connected with a 24V power supply;

EX_PU is electrically connected with one end of the thirty-fifth resistor;

the other end of the thirty-sixth resistor is connected with analog ground;

the source electrode of the seventh N channel MOS is grounded;

the drain electrode of the seventh N channel MOS is electrically connected with the anode electrode of the fifteenth diode;

the cathode of the fifteenth diode is connected with a 24V power supply;

the drain of the seventh N-channel MOS serves as the output terminal ex_out of the 24V transmission circuit.

As shown in fig. 7, the relay circuit includes a thirty-seventh resistor, a thirty-eighth resistor, a thirty-ninth resistor, a forty-first resistor, a second NPN triode, a sixteenth diode, a seventeenth diode, a second light emitting diode, a second phototransistor, a relay, HEAT1, and HEAT2, wherein,

HEAT1 is positioned at the public end of the heating body and the temperature control sensor;

HEAT2 is positioned at the independent end of the temperature control sensor;

the relay circuit has two ports, defined as HEAT and WKQ;

the other end of the thirty-eighth resistor is connected with analog ground;

the collector of the second NPN triode is electrically connected with the anode of the seventeenth diode;

HEAT2 is electrically connected with one end of the thirty-ninth resistor;

the other end of the forty resistor is electrically connected with HEAT 1;

the collector electrode of the second photosensitive NPN triode is electrically connected with one end of a forty-first resistor;

the other end of the forty-first resistor is connected with a 5V power supply;

AS shown in fig. 8, the RD8F01AS1004 circuit includes a microprocessor chip, a forty-two resistor, a forty-three resistor, a forty-four resistor, a forty-five resistor, a seventeenth capacitor, an eighteenth capacitor, a nineteenth capacitor, a twentieth capacitor, a twenty first capacitor, a twenty second capacitor, a buzzer, an LCD display screen, among others,

the buzzer is provided with two ports, namely a buzzer 1 and a buzzer 2;

the LCD display screen includes 4 ports, defined as LCD1, LCD2, LCD3, and LCD4;

RD8F01AS1004 includes 19 ports, defined AS VSS, LS, WATER, N/MRST, LO_SW, HI_ SW, WKQ, HEAT, BUZ, PU, IN _ V, CL _ V, HEAT _ V, COLD _ V, EX _ PU, HS, RX, TX and VDD,

The same ports are electrically connected to each other;

the VSS port is grounded in an analog mode;

the other end of the twenty-second capacitor is connected with analog ground;

the other end of the forty-second resistor is connected with a 5V power supply;

the port of the buzzer 2 is connected with a 5V power supply;

the other end of the twentieth capacitor is connected with analog ground;

the TX port is electrically connected with one end of the forty-fifth resistor;

the other end of the nineteenth capacitor is connected with analog ground;

the LCD2 is grounded to analog ground;

the LCD1 is connected with a 5V power supply;

the LCD1 is electrically connected with one end of the eighteenth capacitor;

the other end of the eighteenth capacitor is connected with analog ground.

The same or similar reference numerals correspond to the same or similar components;

the terms describing the positional relationship in the drawings are merely illustrative, and are not to be construed as limiting the present patent;

It is to be understood that the above examples of the present invention are provided by way of illustration only and not by way of limitation of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.

Claims

1. The water purifier circuit with the adapter power supply comprises a micro-processing chip circuit and is characterized by also comprising a power supply circuit and a detection circuit, wherein the power supply circuit has a power supply function; the detection circuit detects components of the water purifier; the power supply circuit and the detection circuit are integrated into a circuit board; the power supply circuit comprises a first power supply sub-circuit and a second power supply sub-circuit, wherein the first power supply sub-circuit provides 24V direct current for a booster pump and an electromagnetic valve of the water purifier; the output stage of the first power supply sub-circuit is electrically connected with the input stage of the second power supply sub-circuit; the second power supply sub-circuit provides 5V direct current for a micro-processing chip of the water purifier;

The first power supply sub-circuit comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, a first diode, a second diode, a third diode, a fourth diode, a fifth diode, a sixth diode, a seventh diode, an eighth diode, a first zener diode, a second zener diode, a first light emitting diode, a first photosensitive NPN triode, a first electrolytic capacitor, a second electrolytic capacitor, a third electrolytic capacitor, a voltage dependent resistor, a fuse, a common mode inductor, a three-winding transformer, a first N-channel MOS tube and a first voltage chip, wherein the input stage of the first power supply sub-circuit comprises two input ends ACL and ACN; the output stage of the first power supply sub-circuit comprises two output ends C1.1 and C1.2; the first voltage chip comprises 6 pins, namely RI, FB, GND, SENSE, VDD and GATA respectively; the ACL is electrically connected with one end of the fuse; the other end of the fuse is electrically connected with one end of the first capacitor; the ACN is electrically connected with the other end of the first capacitor; one end of the first capacitor is electrically connected with one end of the first resistor; the other end of the first resistor is electrically connected with one end of the second resistor; the other end of the first capacitor is electrically connected with the other end of the second resistor; the other end of the first resistor is electrically connected with one end of the first zener diode; the other end of the first resistor is electrically connected with one end of the seventh capacitor; the other end of the first voltage stabilizing diode is electrically connected with the other end of the seventh capacitor; the other end of the first resistor is electrically connected with the anode of the first electrolytic capacitor; the cathode of the first electrolytic capacitor is grounded in a digital manner; the other end of the first resistor is connected with a power supply; the other end of the first resistor is electrically connected with the cathode of the first diode; the anode of the first diode is electrically connected with the first end of the first winding of the three-winding transformer; the second end of the first winding of the three-winding transformer is connected with digital ground; one end of the first capacitor is electrically connected with one end of the piezoresistor; the other end of the piezoresistor is electrically connected with the other end of the first capacitor; one end of the first capacitor is electrically connected with the first input end of the common-mode inductor; the other end of the first capacitor is electrically connected with the second input end of the common-mode inductor; the first output end of the common-mode inductor is electrically connected with the anode of the second diode; the first output end of the common-mode inductor is electrically connected with the cathode of the fourth diode; the second output end of the common mode inductor is electrically connected with the anode of the third diode; the second output end of the common mode inductor is electrically connected with the cathode of the fifth diode; the cathode of the second diode is electrically connected with the cathode of the third diode; the anode of the fourth diode is electrically connected with the anode of the fifth diode; the cathode of the second diode is electrically connected with the anode of the second electrolytic capacitor; the anode of the fourth diode is electrically connected with the cathode of the second electrolytic capacitor; the cathode of the second electrolytic capacitor is grounded in number; the anode of the second electrolytic capacitor is electrically connected with one end of the third resistor; the anode of the second electrolytic capacitor is electrically connected with one end of the second capacitor; the other end of the third resistor is electrically connected with the other end of the second capacitor; the other end of the second capacitor is electrically connected with the cathode of the seventh diode; the anode of the second electrolytic capacitor is electrically connected with one end of the third capacitor; the other end of the third capacitor is electrically connected with the anode of the seventh diode; one end of the third capacitor is electrically connected with the first output end of the second winding of the three-winding transformer; the other end of the third capacitor is electrically connected with the second output end of the second winding of the three-winding transformer; the other end of the third capacitor is electrically connected with the drain electrode of the first N-channel MOS tube; the source electrode of the first N-channel MOS tube is electrically connected with one end of the ninth resistor; the other end of the ninth resistor is connected with digital ground; the grid electrode of the first N-channel MOS tube is electrically connected with one end of the fifth resistor; the other end of the fifth resistor is electrically connected with the anode of the sixth diode; the cathode of the sixth diode is electrically connected with the GATA pin of the first voltage chip; the grid electrode of the first N-channel MOS tube is electrically connected with one end of the sixth resistor; the other end of the sixth resistor is electrically connected with the cathode of the sixth diode; the grid electrode of the first N-channel MOS tube is electrically connected with one end of the seventh resistor; the source electrode of the first N-channel MOS tube is electrically connected with the other end of the seventh resistor; the SENSE pin of the first voltage chip is electrically connected with one end of the eighth resistor; the other end of the eighth resistor is electrically connected with one end of the ninth resistor; the SENSE pin of the first voltage chip is electrically connected with one end of the fifth capacitor; the other end of the fifth capacitor is connected with digital ground; the GND pin of the first voltage chip is grounded in a digital mode; the VCC pin of the first voltage chip is connected with a power supply; the RI pin of the first voltage chip is electrically connected with one end of the tenth resistor; the other end of the tenth resistor is connected with digital ground; the FB pin of the first voltage chip is electrically connected with one end of the sixth capacitor; the other end of the sixth capacitor is connected with digital ground; the FB pin of the first voltage chip is electrically connected with the collector electrode of the first photosensitive NPN triode; the emitting stage of the first photosensitive NPN triode is grounded digitally; the first photosensitive NPN triode is in signal connection with the first light-emitting diode in a photoelectric isolation mode; the anode of the first light-emitting diode is electrically connected with one end of the eleventh resistor; one end of the eleventh resistor is electrically connected with one end of the twelfth resistor; the other end of the twelfth resistor is electrically connected with the cathode of the first light-emitting diode; the cathode of the first light-emitting diode is electrically connected with the cathode of the second zener diode; the anode of the first light-emitting diode is grounded in an analog mode; the first input end of the third winding of the three-winding transformer is electrically connected with the anode of the eighth diode; the anode of the eighth diode is electrically connected with one end of the fourth capacitor; the other end of the fourth capacitor is electrically connected with one end of the fourth resistor; the other end of the fourth resistor is electrically connected with the cathode of the eighth diode; the cathode of the eighth diode is electrically connected with the anode of the third electrolytic capacitor; the second input end of the third winding of the three-winding transformer is electrically connected with the cathode of the third electrolytic capacitor; the cathode of the third electrolytic capacitor is grounded and is used as an output end C1.2 of the first power supply subcircuit; the anode of the third electrolytic capacitor is used as an output end C1.1 of the first power supply subcircuit;

The second power supply sub-circuit comprises a second voltage chip, a thirteenth resistor, an eighth capacitor, a ninth capacitor, a fourth electrolytic capacitor, a ninth diode and an inductor, wherein the input stage of the second power supply sub-circuit comprises two input ends R1.1 and R1.2; the output stage of the second power supply sub-circuit comprises two output ends C2.1 and C2.2; the second voltage chip comprises 8 pins, namely 4 pins GND, VIN, VOUT, FB and ON/OFF; the R1.1 is electrically connected with the C1.1; the R1.2 is electrically connected with the C1.2; the R1.1 is electrically connected with one end of the thirteenth resistor; the R1.2 is electrically connected with the other end of the thirteenth resistor; the R1.1 is electrically connected with one end of the eighth capacitor; the R1.2 is electrically connected with the other end of the eighth capacitor; the R1.1 is electrically connected with the VIN pin of the second voltage chip; the R1.2 is electrically connected with 4 GND pins of the second voltage chip; the R1.2 is electrically connected with an ON/OFF pin of the second voltage chip; the R1.2 is electrically connected with the anode of the ninth diode; the cathode of the ninth diode is electrically connected with the VOUT pin of the second voltage chip; the VOUT pin of the second voltage chip is electrically connected with one end of the inductor; the other end of the inductor is electrically connected with the FB pin of the second voltage chip; the other end of the inductor is electrically connected with the anode of the fourth electrolytic capacitor; the cathode of the fourth electrolytic capacitor is electrically connected with the anode of the ninth diode; the anode of the fourth electrolytic capacitor is electrically connected with one end of the ninth capacitor; the cathode of the fourth electrolytic capacitor is electrically connected with the other end of the ninth capacitor; the anode of the fourth electrolytic capacitor is used as an output end C2.1 of the second power supply subcircuit; the cathode of the fourth electrolytic capacitor is grounded and is used as an output end C2.2 of the second power supply subcircuit;

The low-voltage switch detection sub-circuit comprises a low-voltage switch detection module, a fourteenth resistor, a fifteenth resistor and a tenth capacitor, wherein the output end LS of the low-voltage switch detection sub-circuit is electrically connected with the first input end of the micro-processing chip circuit; the output stage of the low-voltage switch detection module comprises two pins, namely a low-voltage switch 1 pin and a low-voltage switch 2 pin; the pin 1 of the low-voltage switch is electrically connected with one end of a fourteenth resistor; the pin 1 of the low-voltage switch is electrically connected with one end of the fifteenth resistor; the other end of the fifteenth resistor is connected with a 5V power supply; the other end of the fourteenth resistor is electrically connected with one end of the tenth capacitor; the other end of the tenth capacitor is electrically connected with the pin 2 of the low-voltage switch; the other end of the tenth capacitor is connected with analog ground; the other end of the fourteenth resistor is used as an output end LS of the low-voltage switch detection subcircuit; the high-voltage switch detection sub-circuit comprises a high-voltage switch detection module, a sixteenth resistor, a seventeenth resistor and an eleventh capacitor, wherein the output end HS of the high-voltage switch detection sub-circuit is electrically connected with the second input end of the micro-processing chip circuit; the output stage of the high-voltage switch detection module comprises two pins, namely a high-voltage switch 1 pin and a high-voltage switch 2 pin; the pin 1 of the high-voltage switch is electrically connected with one end of the sixteenth resistor; the pin 1 of the low-voltage switch is electrically connected with one end of a seventeenth resistor; the other end of the seventeenth resistor is connected with a 5V power supply; the other end of the sixteenth resistor is electrically connected with one end of the eleventh capacitor; the other end of the eleventh capacitor is electrically connected with the pin 2 of the high-voltage switch; the other end of the eleventh capacitor is connected with analog ground; the other end of the sixteenth resistor is used as an output end HS of the high-voltage switch detection subcircuit.

2. The WATER purifier circuit of claim 1 wherein the WATER leakage detection subcircuit comprises a WATER leakage detection module, an eighteenth resistor, a nineteenth resistor, a twentieth resistor, a twelfth capacitor, a thirteenth capacitor, a fourteenth capacitor, and a first NPN triode, wherein an output terminal WATER of the WATER leakage detection subcircuit is electrically connected with a third input terminal of the microprocessor chip circuit; the output stage of the water leakage detection module comprises two pins, namely a pin 1 of the water leakage detection module and a pin 2 of the water leakage detection module; the water leakage detection module 1 is connected with a 24V power supply through a pin; the pin 1 of the water leakage detection module is electrically connected with one end of the twelfth capacitor; the pin 2 of the water leakage detection module is electrically connected with the other end of the twelfth capacitor; the pin 2 of the water leakage detection module is electrically connected with one end of the twentieth resistor; the other end of the twentieth resistor is electrically connected with the base electrode of the first NPN triode; the pin 2 of the water leakage detection module is electrically connected with one end of the thirteenth capacitor; the other end of the thirteenth capacitor is connected with analog ground; the other end of the twentieth resistor is electrically connected with one end of the nineteenth resistor; the other end of the nineteenth resistor is connected with analog ground; the emitter of the first NPN triode is grounded in an analog mode; the collector electrode of the first NPN triode is electrically connected with one end of the eighteenth resistor; the other end of the eighteenth resistor is connected with a 5V power supply; the collector electrode of the first NPN triode is electrically connected with one end of the fourteenth capacitor; the emitter of the first NPN triode is electrically connected with the other end of the fourteenth capacitor; the collector electrode of the first NPN triode is used as an output end WATER of the WATER leakage detection subcircuit.

3. The water purifier circuit of claim 2 wherein the float monitoring sub-circuit comprises a float monitoring module, a twenty-first resistor, a twenty-second resistor, a twenty-third resistor, a twenty-fourth resistor, a fifteenth capacitor, a sixteenth capacitor, wherein the output stage of the float monitoring sub-circuit comprises 2 output terminals hi_sw and lo_sw, and the hi_sw is electrically connected with the third input terminal of the micro-processing chip circuit; the LO_SW is electrically connected with a fourth input end of the micro-processing chip circuit; the output stage of the floating ball monitoring module comprises three pins, namely a pin 1 of the floating ball monitoring module, a pin 2 of the floating ball monitoring module and a pin 3 of the floating ball monitoring module; the pin 1 of the floating ball monitoring module is electrically connected with one end of a twenty-first resistor; the other end of the twenty-first resistor is connected with a 5V power supply; the pin 1 of the floating ball monitoring module is electrically connected with one end of a twenty-second resistor; the other end of the twenty-second resistor is electrically connected with one end of the fifteenth capacitor; the other end of the fifteenth capacitor is connected with analog ground; the foot of the floating ball monitoring module 2 is connected with the analog ground; the pin 3 of the floating ball monitoring module is electrically connected with one end of a twenty-fourth resistor; the other end of the twenty-fourth resistor is connected with a 5V power supply; the pin 3 of the floating ball monitoring module is electrically connected with one end of a twenty-third resistor; the other end of the twenty-third resistor is electrically connected with one end of the sixteenth capacitor; the other end of the sixteenth capacitor is connected with analog ground; the other end of the twenty-second resistor is used as an output end HI_SW of the floating ball monitoring subcircuit; the other end of the twenty-third resistor is used as an output end LO_SW of the floating ball monitoring subcircuit.

4. The water purifier circuit of claim 3 further comprising a 24V transmission circuit, the 24V transmission circuit transmitting 24V direct current to a booster pump and a solenoid valve of the water purifier, the 24V transmission circuit comprising a twenty-fifth resistor, a twenty-sixth resistor, a twenty-seventh resistor, a twenty-eighth resistor, a twenty-ninth resistor, a thirty-first resistor, a thirty-second resistor, a thirty-third resistor, a thirty-fourth resistor, a thirty-fifth resistor, a twelfth diode, an eleventh diode, a twelfth diode, a thirteenth diode, a fourteenth diode, a fifteenth diode, a second N-channel MOS, a third N-channel MOS, a fourth N-channel MOS, a fifth N-channel MOS, a sixth N-channel MOS, and a seventh N-channel MOS, wherein the 24V transmission circuit comprises 6 inputs defined as in_ V, CL _ V, HEAT _ V, COLD _ V, PU and ex_pu, respectively; the 24V transmission circuit comprises 6 output ends, which are respectively defined as IN_OUT, CX_OUT, HEAT_OUT, COLD_OUT, PU_OUT and EX_OUT; the IN_V is electrically connected with one end of the twenty-fifth resistor; the other end of the twenty-fifth resistor is electrically connected with the grid electrode of the second N channel MOS; the other end of the twenty-fifth resistor is electrically connected with one end of the twenty-sixth resistor; the other end of the twenty-sixth resistor is connected with analog ground; the source electrode of the second N channel MOS is grounded in an analog mode; the drain electrode of the second N channel MOS is electrically connected with the anode of the twelfth electrode tube; the cathode of the twelfth electrode tube is connected with a 24V power supply; the drain electrode of the second N channel MOS is used as an output end IN_OUT of the 24V transmission circuit; the CL_V is electrically connected with one end of the twenty-seventh resistor; the other end of the twenty-seventh resistor is electrically connected with the grid electrode of the third N channel MOS; the other end of the twenty-seventh resistor is electrically connected with one end of the twenty-eighth resistor; the other end of the twenty-eighth resistor is connected with analog ground; the source electrode of the third N channel MOS is grounded in an analog mode; the drain electrode of the third N channel MOS is electrically connected with the anode of the eleventh diode; the cathode of the eleventh diode is connected with a 24V power supply; the drain electrode of the third N channel MOS is used as an output end CX_OUT of the 24V transmission circuit; the HEAT_V is electrically connected with one end of the twenty-ninth resistor; the other end of the twenty-ninth resistor is electrically connected with the grid electrode of the fourth N channel MOS; the other end of the twenty-ninth resistor is electrically connected with one end of the thirty-eighth resistor; the other end of the thirty-second resistor is connected with analog ground; the source electrode of the fourth N channel MOS is grounded in an analog mode; the drain electrode of the fourth N channel MOS is electrically connected with the anode of the twelfth diode; the cathode of the twelfth diode is connected with a 24V power supply; the drain electrode of the fourth N channel MOS is used as an output end HEAT_OUT of the 24V transmission circuit; the COLD_V is electrically connected with one end of the thirty-first resistor; the other end of the thirty-first resistor is electrically connected with the grid electrode of the fifth N channel MOS; the other end of the thirty-first resistor is electrically connected with one end of the thirty-second resistor; the other end of the thirty-second resistor is connected with analog ground; the source electrode of the fifth N channel MOS is grounded in an analog mode; the drain electrode of the fifth N channel MOS is electrically connected with the anode of the thirteenth diode; the cathode of the thirteenth diode is connected with a 24V power supply; the drain electrode of the fifth N channel MOS is used as an output end COLD_OUT of the 24V transmission circuit; the PU is electrically connected with one end of the thirty-third resistor; the other end of the thirty-third resistor is electrically connected with the grid electrode of the sixth N-channel MOS; the other end of the thirty-third resistor is electrically connected with one end of the thirty-fourth resistor; the other end of the thirty-fourth resistor is connected with analog ground; the source electrode of the sixth N channel MOS is grounded in an analog mode; the drain electrode of the sixth N channel MOS is electrically connected with the anode of the fourteenth diode; the cathode of the fourteenth diode is connected with a 24V power supply; the drain electrode of the sixth N channel MOS is used as an output end PU_OUT of the 24V transmission circuit; the EX_PU is electrically connected with one end of the thirty-fifth resistor; the other end of the thirty-fifth resistor is electrically connected with the grid electrode of the seventh N-channel MOS; the other end of the thirty-fifth resistor is electrically connected with one end of the thirty-sixth resistor; the other end of the thirty-sixth resistor is connected with analog ground; the source electrode of the seventh N channel MOS is grounded in an analog mode; the drain electrode of the seventh N channel MOS is electrically connected with the anode of the fifteenth diode; the cathode of the fifteenth diode is connected with a 24V power supply; the drain electrode of the seventh N channel MOS is used as the output end EX_OUT of the 24V transmission circuit.

5. The water purifier circuit of claim 4 further comprising a relay circuit for controlling the start of the heater, the relay circuit comprising a thirty-seventh resistor, a thirty-eighth resistor, a thirty-ninth resistor, a fortieth-first resistor, a second NPN triode, a sixteenth diode, a seventeenth diode, a second light emitting diode, a second phototransistor, a relay, HEAT1, and HEAT2, wherein HEAT1 is located at a common terminal of the heater and the temperature control sensor; the HEAT2 is positioned at the independent end of the temperature control sensor; the relay circuit has two ports, defined as HEAT and WKQ; one end of the thirty-seventh resistor is used as one end HEAT of the relay circuit, and the other end of the thirty-seventh resistor is electrically connected with one end of the thirty-eighth resistor; the other end of the thirty-eighth resistor is connected with analog ground; the other end of the thirty-eighth resistor is electrically connected with the emitter of the second NPN triode; the collector electrode of the second NPN triode is electrically connected with the anode of the seventeenth diode; the collector electrode of the second NPN triode is electrically connected with the first input end of the relay; the cathode of the seventeenth diode is electrically connected with the second input end of the relay; the HEAT2 is electrically connected with one end of the thirty-ninth resistor; the other end of the thirty-ninth resistor is electrically connected with the cathode of the second light-emitting diode; the anode of the second light-emitting diode is electrically connected with the cathode of the sixteenth diode; the anode of the sixteenth diode is electrically connected with one end of the forty resistor; the other end of the forty resistor is electrically connected with HEAT 1; the second photosensitive NPN triode is in signal connection with the second light-emitting diode in a photoelectric isolation mode; the emitter of the second photosensitive NPN triode is grounded in an analog mode; the collector electrode of the second photosensitive NPN triode is electrically connected with one end of the forty-first resistor; the other end of the forty-first resistor is connected with a 5V power supply; the collector of the second photo NPN transistor serves as one end WKQ of the relay circuit.

6. The water purifier circuit of claim 5 wherein the microprocessor chip circuit comprises a microprocessor chip, a forty-two resistor, a forty-three resistor, a forty-four resistor, a forty-five resistor, a seventeenth capacitor, an eighteenth capacitor, a nineteenth capacitor, a twentieth capacitor, a twenty first capacitor, a twenty second capacitor, a buzzer, an LCD display screen, wherein the buzzer has two ports defined as a buzzer 1 and a buzzer 2; the LCD display screen comprises 4 ports, which are defined as LCD1, LCD2, LCD3 and LCD4; the micro-processing chip comprises 19 ports, namely VSS, LS, WATER, N/MRST, LO_SW, HI_ SW, WKQ, HEAT, BUZ, PU, IN _ V, CL _ V, HEAT _ V, COLD _ V, EX _ PU, HS, RX, TX and VDD, wherein the same ports are electrically connected with each other; the VSS port is grounded in an analog mode; the N/MRST port is electrically connected with one end of the twenty-second capacitor; the other end of the twenty-second capacitor is connected with analog ground; the N/MRST port is electrically connected with one end of the forty-second resistor; the other end of the forty-second resistor is connected with a 5V power supply; the BUZ port is electrically connected with one end of the forty-third resistor; the other end of the forty-third resistor is electrically connected with the port of the buzzer 1; the 2 port of the buzzer is connected with a 5V power supply; the RX port is electrically connected with one end of the forty-fourth resistor; the other end of the forty-fourth resistor is electrically connected with the LCD4; the other end of the forty-fourth resistor is electrically connected with one end of the twentieth capacitor; the other end of the twentieth capacitor is connected with analog ground; the TX port is electrically connected with one end of the forty-fifth resistor; the other end of the forty-fifth resistor is electrically connected with the LCD 3; the other end of the forty-fifth resistor is electrically connected with one end of the nineteenth capacitor; the other end of the nineteenth capacitor is connected with analog ground; the LCD2 is grounded in an analog mode; the LCD1 is connected with a 5V power supply; the LCD1 is electrically connected with one end of the eighteenth capacitor; the other end of the eighteenth capacitor is connected with analog ground.