A fully automatic self-cleaning drum washing machine

Abstract

A fully automatic self-cleaning drum washing machine. The inner drum of the washing machine is installed inside the outer drum of the washing machine and is connected by the inner drum transmission shaft of the washing machine. It is combined with a washing machine drainage motor, a self-cleaning control circuit, a self-cleaning water supply solenoid valve, a water supply solenoid valve water inlet pipe, a self-cleaning water supply solenoid valve water outlet pipe, a self-cleaning water inlet pipe, three sets of self-cleaning water supply pipes, multiple self-cleaning water supply branch pipes, and multiple water spray heads. After the washing machine enters the dehydration program, the self-cleaning control circuit is started by the starting power supply of the washing machine drainage motor to control an independent water inlet solenoid valve to provide water flow to the self-cleaning spray device arranged in the outer drum structure of the washing machine, and the residual dirt and harmful bacteria in various parts of the interlayer between the inner drum and the outer drum of the washing machine are cleaned and discharged to the outside of the washing machine through the drainage pipe of the washing machine, so as to achieve the purpose of self-cleaning of the washing machine, and completely change the current situation of sewage washing and secondary pollution of clothes in the existing fully automatic drum washing machine.

Description

Technical Field

[0001] The invention relates to a fully automatic self-cleaning drum washing machine, in particular to a washing machine capable of automatically removing dirt and harmful bacteria on the surface of an inner barrel and an outer barrel of the fully automatic drum washing machine. Background Art

[0002] At present, with the increase of the use time of the known fully automatic drum washing machine, a large amount of dirt and harmful bacteria will accumulate on the surface of the inner and outer barrels of the washing machine, which is difficult for non-professionals to remove. Although some fully automatic drum washing machines are currently equipped with a self-cleaning function, the self-cleaning program must be started separately, which is energy-consuming, water-consuming and time-consuming. The key is that the self-cleaning function is easily ignored, the utilization rate of the self-cleaning function is low, and the cleaning effect is not thorough. When washing clothes again, the dirt and harmful bacteria on the surface of the inner and outer barrels will cause secondary pollution to the clothes, which is very harmful to people's health. Summary of the invention

[0003] In order to overcome the shortcomings of existing fully automatic drum washing machines, as the use time increases, a large amount of dirt and harmful bacteria will accumulate in the interlayer of the inner and outer barrels of the washing machine, and the self-cleaning function is easily ignored, the usage rate is low, the cleaning effect is not thorough, and the clothes will be secondary polluted when the washing machine is used for the second time.

[0004] The present invention provides a washing machine comprising an outer barrel, an inner barrel, a washing machine body, a detergent box, a round door knocker, a transparent glass viewing hole, a door seal, a drain pump connecting pipe, a filter, a foot adjusting screw, a small transmission belt wheel, a washing motor, a transmission belt, a drain pipe, a heater, a large transmission belt wheel, an outer barrel bracket, a conical surface of the outer barrel, a horizontal part of the outer barrel, a bottom of the outer barrel, an outer wall of the conical surface of the outer barrel, an inner wall of the conical surface of the outer barrel, an outer wall of the horizontal part of the outer barrel, an inner wall of the horizontal part of the outer barrel, an outer wall of the bottom of the outer barrel, an inner wall of the bottom of the outer barrel, a washing machine The fully automatic self-cleaning drum washing machine is composed of the outer wall of the inner drum, the transmission shaft of the inner drum of the washing machine, the inner and outer drum interlayers of the washing machine, the conical self-cleaning water supply pipe, the horizontal self-cleaning water supply pipe, the vertical self-cleaning water supply pipe, the water spray head, the self-cleaning water inlet pipe, the self-cleaning water supply solenoid valve outlet pipe, the water supply solenoid valve, the washing drum water supply pipe solenoid valve, the self-cleaning water supply solenoid valve, the detergent box water supply solenoid valve, the water supply solenoid valve inlet pipe, the self-cleaning control circuit, the washing machine drainage motor or drainage pump, the self-cleaning water supply branch pipe, the washing drum water supply pipe, the fully automatic washing machine program control circuit, and the detergent box water supply pipe. The fully automatic self-cleaning drum washing machine does not change the existing fully automatic drum washing machine's way of washing clothes, and can automatically and effectively remove the residual dirt and harmful bacteria on various parts of the surface of the inner drum and the outer drum interlayer of the washing machine, which completely changes the current situation of "wastewater washing and secondary pollution" of the existing fully automatic drum washing machine, and provides a guarantee for people's health.

[0005] The technical solution adopted by the present invention to solve its technical problems is: in a washing machine box, an inner drum of the washing machine is installed inside an outer drum of the washing machine and is connected by a transmission shaft of the inner drum of the washing machine, and is combined with a washing tub water supply solenoid valve, a detergent box water supply solenoid valve, a program control circuit, a washing machine drainage motor, a self-cleaning control circuit, a self-cleaning water supply solenoid valve, a water supply solenoid valve outlet pipe, a self-cleaning water inlet pipe, three groups of self-cleaning water supply pipes, multiple self-cleaning water supply branch pipes, and multiple water spray heads; a fully automatic washing machine self-cleaning control system composed of a self-cleaning control circuit, a self-cleaning water supply solenoid valve, a water supply solenoid valve outlet pipe, a self-cleaning water inlet pipe, three groups of self-cleaning water supply pipes, multiple self-cleaning water supply branch pipes, and multiple water spray heads. In the self-cleaning control circuit, the 3rd and 4th pins of the starting coil of the relay J1 are respectively connected to the 1st and 2nd pins of the power input terminal of the washing machine drainage motor, the 1st and 2nd pins of the relay J1 are connected to the AC 220V power supply of the washing machine, the 1st and 5th pins of the relay J1, the switch J1-1 of the relay J1, and one end of the primary coil L1 of the 12V transformer B are connected to each other, the 2nd and 6th pins of the relay J1, the switch J1-2 of the relay J1, and the other end of the primary coil L1 of the 12V transformer B are connected to each other, the two ends of the secondary coil L2 of the 12V transformer B are connected to the AC input terminal of the rectifier circuit composed of D1-D4, the DC output terminal of D1-D4 is connected to the 1st pin of the power input terminal of the 8V three-terminal voltage regulator integrated circuit IC1 7808, and the 8V three-terminal voltage regulator integrated circuit IC1 Pin 3 of the power output terminal of 7808 is connected to the power supply of the first-stage delay circuit composed of the timing integrated circuit IC2NE555, C2, R1, C3, and relay J2. Pin 1 of the start coil of relay J2 is connected to pin 3 of IC2, and pin 2 is connected to the negative pole of the power supply. One end of the switches J2-1 and J2-2 of relay J2 is respectively connected to the positive pin 3 and negative pin 2 of the power output terminal of the 8V three-terminal voltage regulator integrated circuit IC1 7808. The other ends of the switches J2-1 and J2-2 of relay J2 are respectively connected to the power supply of the second-stage delay circuit composed of C4, R2, C5, timing integrated circuit IC3NE555, and relay J3. Pin 1 of the start coil of relay J3 is connected to IC3 Pin 3 and pin 2 of NE555 are connected to the positive pole of the power supply, one end of the switches J3-1 and J3-2 of relay J3 are connected to the AC 220V power supply of the washing machine, and the other end of the switches J3-1 and J3-2 of relay J3 are connected to pins 1 and 2 of the start coil of the water inlet solenoid valve.An independent self-cleaning water supply solenoid valve is arranged in the structure of the washing machine, one end of the water supply solenoid valve water inlet pipe is connected to the water supply solenoid valve water inlet, the other end of the water supply solenoid valve water inlet pipe is connected to the washing machine water supply pipeline, the water supply solenoid valve adopts a single water inlet and three water outlets model, the first water outlet of the water supply solenoid valve is connected to the washing tub water supply pipe, the second water outlet of the water supply solenoid valve is connected to the detergent box water supply pipe, the third water outlet of the water supply solenoid valve is connected to one end of the self-cleaning water supply solenoid valve water outlet, the other end of the self-cleaning water supply solenoid valve water outlet is connected to one end of the self-cleaning water inlet pipe, and the other end of the self-cleaning water inlet pipe is connected to three groups of self-cleaning water supply pipes arranged in the outer barrel structure of the washing machine. A plurality of self-cleaning water supply branch pipes are connected through the structure of the three groups of self-cleaning water supply pipes, and each self-cleaning water supply branch pipe is connected to a water spray head. A self-cleaning water inlet pipe, three groups of self-cleaning water supply pipes, multiple self-cleaning water supply branch pipes, and multiple water spray heads are arranged in the outer barrel structure of the washing machine. The self-cleaning water inlet pipe, three groups of self-cleaning water supply pipes, multiple self-cleaning water supply branch pipes, and multiple water spray heads are interconnected to form a self-cleaning spray device for the washing machine. Self-cleaning water supply pipes are arranged at three locations in the outer barrel structure of the washing machine, a conical self-cleaning water supply pipe is installed on the conical surface of the outer barrel of the washing machine, a horizontal self-cleaning water supply pipe is installed on the horizontal part of the outer barrel of the washing machine, and a vertical self-cleaning water supply pipe is installed at the bottom of the outer barrel of the washing machine. The conical self-cleaning water supply pipe, the horizontal self-cleaning water supply pipe, and the vertical self-cleaning water supply pipe are sequentially connected to form a group of self-cleaning water supply pipes. Three groups of self-cleaning water supply pipes are arranged in the structure of the outer barrel of the washing machine, and the positions of the three groups of self-cleaning water supply pipes are respectively at the top of the outer barrel of the washing machine, the left side of the outer barrel of the washing machine, and the right side of the outer barrel of the washing machine.After the washing machine enters the dehydration program, the power supply of the washing machine drainage motor is used to start the self-cleaning control circuit. After the starting coil of the relay J1 in the self-cleaning control circuit is energized, the switches J1-1 and J1-2 of the relay J1 are closed, and the 1st and 5th pins of the relay J1, the switch J1-1 of the relay J1 and the 2nd and 6th pins of the relay J1, the switch J1-2 of the relay J1 respectively transmit the 220V AC power supply of the washing machine to the two ends of the primary coil L1 of the 12V transformer B. The 12V transformer B converts the 220V AC power supply voltage of the washing machine into a 12V AC voltage, which is transmitted to the rectifier circuit composed of D1-D4 by the secondary coil L2. After rectification, a 12V DC voltage is obtained, and the residual AC component is filtered out by the capacitor C1 to obtain a pure 12V DC voltage, which is transmitted to the 1st pin of the three-terminal voltage regulator integrated circuit IC1 7808, and the 8V DC voltage is output from the 3rd pin of IC1 and transmitted to the timing integrated circuit IC2 The power input end of the first-stage delay circuit composed of NE555, C2, R1, C3, and relay J2, pin 1 of relay J2 is connected to pin 3 of the timing integrated circuit IC2 NE555, and pin 2 is connected to the negative pole. At this moment, pin 3 of the timing integrated circuit IC2 NE555 is at a low voltage, no current is generated in the starting coil of relay J2, and switches J2-1 and J2-2 of relay J2 are disconnected.At this time, R1 charges C2. As the charging time increases, when the voltages at pins 2 and 6 of the timing integrated circuit IC2NE555 reach 2 / 3 of the power supply voltage, the voltage at pin 3 of the timing integrated circuit IC2NE555 suddenly changes, and a potential difference is formed between pins 1 and 2 of the start coil of relay J2, generating current in the start coil of relay J2. At the same time, switches J2-1 and J2-2 of relay J2 are closed, and 8V DC voltage is transmitted to the second-stage delay circuit composed of C4, R2, C5, timing integrated circuit IC3NE555, and relay J3. Pin 1 of the start coil of relay J3 is connected to pin 3 of IC3, and pin 2 is connected to the positive electrode of 8V voltage. At this moment, the timing integrated circuit IC3 Pin 3 of NE555 is at low voltage, and pins 1 and 2 of the starting coil of relay J3 form a potential difference, generating current in the starting coil of relay J3. Switches J3-1 and J3-2 of relay J3 are closed, and the AC 220V power supply of the washing machine is transmitted to the starting coil of a separate water inlet solenoid valve. After the water inlet solenoid valve is started, the clean water in the water supply pipeline of the washing machine passes through the water inlet solenoid valve inlet pipe, the water inlet solenoid valve, and the water inlet solenoid valve outlet pipe to provide water flow to the washing machine self-cleaning spray device composed of a self-cleaning water inlet pipe, three sets of self-cleaning water supply pipes, multiple self-cleaning water supply branch pipes, and multiple water spray heads arranged in the outer barrel structure of the washing machine. The water flows through the water inlet solenoid valve inlet pipe, the water inlet solenoid valve, and the water inlet solenoid valve outlet pipe. The washing machine is equipped with a self-cleaning water inlet pipe, three sets of self-cleaning water supply pipes, multiple self-cleaning water supply branch pipes, and multiple water spray heads to spray the outer wall of the inner barrel of the washing machine. At this time, a water flow will be formed on the outer wall of the inner barrel of the washing machine to clean the residual dirt and harmful bacteria on the outer wall of the inner barrel of the washing machine. Since the inner barrel of the washing machine is in a high-speed rotating state at this time, according to the principle of centrifugal force, the water flow on the outer wall of the inner barrel of the washing machine will be reflected to the inner wall of the outer barrel of the washing machine, and a water flow will also be formed on the inner wall of the outer barrel of the washing machine, and the residual dirt and harmful bacteria on the inner wall of the outer barrel of the washing machine will be cleaned at the same time. Through the above process, the residual dirt and harmful bacteria in various parts of the inner and outer barrels of the washing machine are completely removed, and the residual dirt and harmful bacteria are discharged outside the washing machine through the drain pipe of the washing machine along with the water flow. As the charging time of C4 by R2 increases, when the voltage of pins 2 and 6 of the timing integrated circuit IC3 NE555 reaches 2 / 3 of the power supply voltage, the voltage of pin 3 of the timing integrated circuit IC3 NE555 suddenly changes, and there is no potential difference between pins 1 and 2 of the starting coil of relay J3. The starting coil of relay J3 loses current, and switches J3-1 and J3-2 of relay J3 are disconnected, cutting off the AC 220V power supply of the starting coil of the water inlet solenoid valve. The water inlet solenoid valve immediately closes the water flow and stops supplying water to the washing machine self-cleaning spray device composed of a self-cleaning water inlet pipe, three sets of self-cleaning water supply pipes, multiple self-cleaning water supply branch pipes, and multiple water spray heads arranged in the outer barrel structure of the washing machine, thereby automatically achieving the purpose of self-cleaning of the washing machine.After the washing machine enters the dehydration program, the starting power supply of the washing machine drainage motor is used to start the washing machine self-cleaning control circuit. The washing machine self-cleaning control circuit starts an independent water supply solenoid valve to provide water flow to the self-cleaning spray device in the outer barrel structure of the washing machine, so as to clean the residual dirt and harmful bacteria in various parts of the inner barrel and outer barrel interlayer of the washing machine, and ensure the internal cleanliness of the washing machine. Since the structure of the existing fully automatic drum washing machine is well known in the washing machine technology industry, in order to make the abstract, specification, specification drawings, and claims more concise, the present invention only describes and marks the components related to the present invention in the existing fully automatic drum washing machine structure in the abstract, specification, specification drawings, and claims. A fully automatic self-cleaning drum washing machine is a fully automatic drum washing machine self-cleaning control system composed of a washing machine self-cleaning control circuit, a self-cleaning water supply solenoid valve, a self-cleaning water inlet pipe, a self-cleaning water supply pipe, a self-cleaning water supply branch pipe, and a water spray head on the structure of the existing fully automatic drum washing machine. The self-cleaning control system of the fully automatic drum washing machine consists of two parts: 1. The washing machine self-cleaning control circuit; 2. The washing machine self-cleaning spray device.

[0006] 1. Washing machine self-cleaning control circuit: A washing machine self-cleaning control circuit and a self-cleaning water supply solenoid valve are added to the program control circuit of the existing fully automatic drum washing machine.

[0007] 2. Washing machine self-cleaning spray device: A self-cleaning water inlet pipe, three sets of self-cleaning water supply pipes, multiple self-cleaning water supply branch pipes, and multiple water spray heads are arranged at different positions on the outer barrel structure of the existing fully automatic drum washing machine. The self-cleaning water inlet pipe, the self-cleaning water supply pipe, and the self-cleaning water supply branch pipe are arranged on the outer wall of the outer barrel of the washing machine, and the water spray head is arranged on the inner wall of the outer barrel of the washing machine. One end of the self-cleaning water inlet pipe is respectively connected to the three sets of self-cleaning water supply pipes, and the three sets of self-cleaning water supply pipes, the multiple self-cleaning water supply branch pipes, and the multiple water spray heads are interconnected to form a washing machine self-cleaning spray device.

[0008] The program control circuit of the fully automatic drum washing machine enters the dehydration program, starts the drainage motor or drainage pump of the washing machine to discharge sewage, and at the same time, the starting power of the drainage motor or drainage pump of the washing machine starts the self-cleaning control circuit of the washing machine. The self-cleaning control circuit of the washing machine starts the self-cleaning water supply solenoid valve within a certain period of time. After the self-cleaning water supply solenoid valve is started, water flows through the washing machine water inlet pipe, self-cleaning water supply solenoid valve, self-cleaning water inlet pipe, self-cleaning water supply pipe, self-cleaning water supply branch pipe, and water spray head to spray water to multiple parts of the inner and outer walls of the washing machine, and the residual water at various parts of the inner and outer walls of the washing machine is removed. The remaining dirt and harmful bacteria are thoroughly cleaned. At this time, since the inner barrel of the washing machine is in a high-speed rotating state, the water flow sprayed by the water spray head to the inner barrel of the washing machine is reflected to multiple parts of the inner wall of the outer barrel of the washing machine through the outer wall of the high-speed rotating inner barrel of the washing machine, forming a water flow on the inner wall of the outer barrel. The water flow also cleans the residual dirt and harmful bacteria on various parts of the inner wall surface of the outer barrel at the same time, automatically realizing the automatic cleaning of the residual dirt and harmful bacteria in various parts of the interlayer between the inner barrel and the outer barrel of the washing machine, and the residual dirt and harmful bacteria are discharged outside the washing machine through the drain pipe of the washing machine along with the water flow.

[0009] The water supply solenoid valve adopts a single water inlet and three water outlets model. The three water outlets of the water supply solenoid valve supply water to the washing machine washing tub, detergent box, and washing machine self-cleaning spray device respectively. The outlet of the self-cleaning water supply solenoid valve is connected to the self-cleaning water inlet pipe.

[0010] The beneficial effect of the present invention is that when the fully automatic self-cleaning drum washing machine enters the dehydration program, there is no need to separately turn on the self-cleaning function of the washing machine. Only a small amount of water is needed to automatically and thoroughly remove the residual dirt and harmful bacteria in various parts of the inner barrel and the outer barrel interlayer of the washing machine, thereby achieving the purpose of self-cleaning of the fully automatic drum washing machine, and completely changing the current situation of "wastewater washing and secondary pollution of clothes" of the existing fully automatic drum washing machines, providing a guarantee for people's health. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0012] Figure 1 The figure is a schematic diagram of the overall structure of the fully automatic self-cleaning drum washing machine of the present invention.

[0013] Figure 2 It is an overall structural diagram of the fully automatic self-cleaning drum washing machine of the present invention.

[0014] Figure 3 The diagram is a schematic diagram of the principle of a self-cleaning control system of a fully automatic self-cleaning drum washing machine of the present invention.

[0015] Figure 4 The invention discloses a self-cleaning control circuit schematic diagram of a fully automatic self-cleaning drum washing machine.

[0016] Figure 5 The invention discloses a self-cleaning spray device and a schematic diagram of the inner and outer barrel structures of a fully automatic self-cleaning drum washing machine.

[0017] Figure 6 The invention discloses a self-cleaning spray device and an outer drum structure schematic diagram of a fully automatic self-cleaning drum washing machine.

[0018] Figure 1 , Figure 3 , Figure 5 , Figure 6 1. Washing machine outer barrel, 2. Washing machine inner barrel, 3. Washing machine outer barrel conical surface, 4. Washing machine outer barrel horizontal part, 5. Washing machine outer barrel bottom, 6. Washing machine outer barrel conical outer wall, 6.1. Washing machine outer barrel conical inner wall, 7. Washing machine outer barrel horizontal part outer wall, 7.1. Washing machine outer barrel horizontal part inner wall, 8. Washing machine outer barrel bottom outer wall, 8.1. Washing machine outer barrel bottom inner wall, 9. Washing machine inner barrel outer wall, 10. Washing machine inner barrel drive shaft, 11. Washing machine inner and outer barrel interlayer, 12. Conical self-cleaning water supply pipe, 13. Horizontal self-cleaning water supply pipe, 14. Vertical self-cleaning water supply pipe, 15. Spray head, 16. Self-cleaning water inlet pipe, 17. Self-cleaning water supply solenoid valve outlet pipe, 18. Water supply solenoid valve, 18.1. Washing machine Tub water supply pipe solenoid valve, 18.2 Self-cleaning water supply solenoid valve, 18.3 Detergent box water supply solenoid valve, 19. Water supply solenoid valve inlet pipe, 20. Self-cleaning control circuit, 21. Washing machine drainage motor or drainage pump, 22. Self-cleaning water supply branch pipe, 23. Washing tub water supply pipe, 24. Currently available fully automatic washing machine program control circuit, 25. Detergent box water supply pipe, 26. Washing machine body, 27. Detergent box, 28. Round door knocker, 29. Transparent glass viewing hole, 30. Door seal, 31. Drain pump connecting pipe, 32. Filter, 33. Bottom foot adjustment screw, 34. Drive belt small wheel, 35. Washing motor, 36. Drive belt, 37. Drain pipe, 38. Heater, 39. Drive belt large wheel, 40. Outer barrel bracket.

[0019] Figure 4 The self-cleaning control circuit of the washing machine is composed of three parts: 1. The power supply circuit is composed of the washing machine program control circuit 24, the washing machine drainage motor or drainage pump 21, the relay J1, the transformer B, the rectifier circuit D1-D4, C1, and the three-terminal voltage regulator integrated circuit IC1 7808; 2. The first-stage delay circuit is composed of C2, C3, R1, IC2 time base circuit NE555, and relay J2; 3. The second-stage delay circuit is composed of C4, R2, C5, IC3 time base circuit NE555, relay J3, and water supply solenoid valve 18.

[0020] Figure 4In the program control circuit 24, A and B are power output terminals, providing starting power to the power input terminals 1 and 2 of the drainage motor or drainage pump 21. The 3rd and 4th pins of the relay J1 are the starting coils, the 1st and 2nd pins are the 220v AC power input, the 5th and 6th pins are the 220v AC power output, and J1-1 and J1-2 are the two contacts of the relay J1. B is a 12v power transformer, L1 is the primary, and L2 is the secondary. D1-D4 are 4 rectifier diodes, C1 is a capacitor of 25v / 1000uf, ICl is a three-terminal voltage regulator integrated circuit 7808, C2 is a capacitor of 25v / 1000uf, R1 is a resistor of 240k, IC2 is an integrated circuit NE555, C3 is a capacitor of 0.01uf, J2 is a relay, J2-1 and J2-2 are the two contacts of relay J2 respectively, C4 is a capacitor of 25v / 1000uf, R2 is a resistor of 50k, IC3 is an integrated circuit NE555, C5 is a capacitor of 0.01uf, J3 is a relay, J3-1 and J3-2 are the two contacts of relay J3 respectively, and the C and D feet are the starting coils of the self-cleaning water supply solenoid valve 18.2. DETAILED DESCRIPTION

[0021] Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6In the embodiment of the present invention, after the program control circuit 24 of the fully automatic self-cleaning drum washing machine enters the dehydration program, power is supplied to the 1st and 2nd feet of the washing machine's drainage motor or drainage pump 21 and the 3rd and 4th feet of the coil of the relay J1 through the A and B lines at the same time, and the washing machine's drainage motor or drainage pump 21 starts to discharge the washing sewage. At the same time, current is generated at both ends of the coil 3rd and 4th feet of the relay J1. At this time, J1-1 and J1-2 are closed, and the 220V voltage of the 1st and 2nd feet of the relay J1 is transmitted to the primary coil L1 of the 12V transformer B through the 5th and 6th feet. The 220V AC voltage is converted into a 12V AC voltage by the 12V transformer B, and is transmitted to the rectifier circuit composed of D1-D4 by the secondary coil L2. After rectification, a 12V DC voltage is obtained, and the residual AC component is filtered out by the capacitor C1 to obtain a pure 12V DC voltage, which is transmitted to the 1st foot of the three-terminal voltage regulator integrated circuit IC1 7808, and the 8V DC voltage is output from the 3rd foot of IC1 and transmitted to the rectifier circuit composed of IC2 The first-stage delay circuit consists of NE555, C2, R1, C3, and relay J2. Pin 1 of relay J2 is connected to pin 3 of IC2, and pin 2 of J2 is connected to the negative pole of the power supply. At this time, pin 3 of IC2 is at low voltage, and pins 1 and 2 of J2 coil do not generate current. J2-1 and J2-2 are disconnected. At this time, R1 charges C2. As the charging time increases, when the voltage of pins 2 and 6 of IC2 reaches 2 / 3 of the power supply voltage, the voltage of pin 3 of IC2 suddenly changes, and the coil of relay J2 generates current. At the same time, J2-1 and J2-2 are closed, and the 8V voltage is transmitted to C4, R2, C5, and IC3. The second-stage delay circuit is composed of NE555 and relay J3. Pin 1 of relay J3 is connected to pin 3 of IC3, and pin 2 is connected to the positive pole of 8V voltage. At this time, pin 3 of IC3 is at low voltage, and potential difference is formed at both ends of pins 1 and 2 of the coil of relay J3 to generate current. J3-1 and J3-2 are closed to transmit 220V AC voltage to the starting coil of self-cleaning water supply solenoid valve 18.2. After the self-cleaning water supply solenoid valve 18.2 is started, water flows through the water supply solenoid valve inlet pipe 19, the self-cleaning water supply solenoid valve 18.2, and the self-cleaning water supply solenoid valve outlet pipe 17 to supply water to the self-cleaning water inlet pipe 16, and the self-cleaning water inlet pipe 16 supplies water to the cone surface self-cleaning water supply. The water pipe 12, the horizontal self-cleaning water supply pipe 13, and the vertical self-cleaning water supply pipe 14 supply water, and the water flows through multiple self-cleaning water supply branch pipes 22 to supply water to multiple water spray heads 15 respectively, and the multiple water spray heads 15 then spray water to the corresponding parts of the outer wall 9 of the inner barrel of the washing machine, so that the residual dirt and harmful bacteria in the corresponding parts of the outer wall 9 of the inner barrel of the washing machine are thoroughly cleaned. At this time, since the inner barrel 2 of the washing machine is in a high-speed rotation state, water flow will be formed on the surface of the inner and outer barrel interlayer 11 of the washing machine, and the residual dirt and harmful bacteria in the inner and outer barrel interlayer 11 of the washing machine will be thoroughly cleaned, and the residual dirt and harmful bacteria are discharged outside the washing machine through the drain pipe of the washing machine along with the water flow.As the charging time of C4 by R2 increases, when the voltage of pins 2 and 6 of IC3 reaches 2 / 3 of the power supply voltage, the voltage of pin 3 of IC3 suddenly changes, there is no potential difference between the two ends of pins 1 and 2 of the coil of relay J3 and the current is lost, J3-1 and J3-2 are disconnected, and pins 1 and 2 of the self-cleaning water supply solenoid valve 18.2 lose current and the water flow is immediately shut down, stopping the water supply to the self-cleaning spray device of the washing machine, and the self-cleaning process of the washing machine ends.

[0022] Figure 1 , Figure 3 , Figure 4 In the embodiment of the present invention, after the program control circuit 24 of the fully automatic drum washing machine enters the dehydration program, power is provided to the drainage motor or drainage pump 21 and the self-cleaning control circuit 20 of the washing machine at the same time. The self-cleaning control circuit 20 starts the self-cleaning water supply solenoid valve 18.2 within a certain period of time, and the water flows through the water supply solenoid valve inlet pipe 19, the self-cleaning water supply solenoid valve 18.2, and the self-cleaning water supply solenoid valve outlet pipe 17 to supply water to the self-cleaning spray device of the washing machine. By changing the resistance of R1 and the capacity of C2, the time when the self-cleaning water supply solenoid valve 18.2 starts supplying water to the self-cleaning spray device of the washing machine can be set. By changing the resistance of R2 and the capacity of C4, the time when the self-cleaning water supply solenoid valve 18.2 stops supplying water to the self-cleaning spray device of the washing machine can be set.

[0023] Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 In the embodiment, a conical self-cleaning water supply pipe 12 and a plurality of self-cleaning water supply branch pipes 22 are installed on the conical outer wall 6 of the outer barrel of the washing machine, and a plurality of water spray heads 15 are installed on the conical inner wall 6.1 of the outer barrel of the washing machine. The plurality of self-cleaning water supply branch pipes 22 pass through the conical surface 3 of the outer barrel of the washing machine and are interconnected with the plurality of water spray heads 15. The plurality of water spray heads 15 are at equal distances from each other. The number of the plurality of water spray heads 15 is determined by the length of the conical surface 3 of the outer barrel of the washing machine. The corresponding parts of the conical inner wall 6.1 of the outer barrel of the washing machine and the outer wall 9 of the inner barrel of the washing machine should be fully in contact with the water flow sprayed by the plurality of water spray heads 15. The plurality of water spray heads 15 face the outer wall 9 of the inner barrel of the washing machine. The plurality of water spray heads 15 are in the same plane with the conical inner wall 6.1 of the outer barrel of the washing machine, and there should be no concave or convex parts. The self-cleaning water inlet pipe 16, the conical self-cleaning water supply pipe 12, the plurality of self-cleaning water supply branch pipes 22, and the plurality of water spray heads 15 are interconnected.

[0024] Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6In the embodiment, a horizontal self-cleaning water supply pipe 13 and a plurality of self-cleaning water supply branch pipes 22 are installed on the outer wall 7 of the horizontal part of the outer barrel of the washing machine, and a plurality of water spray heads 15 are installed on the inner wall 7.1 of the horizontal part of the outer barrel of the washing machine. The plurality of self-cleaning water supply branch pipes 22 pass through the outer wall 7 of the horizontal part of the outer barrel of the washing machine and are interconnected with the plurality of water spray heads 15. The plurality of water spray heads 15 are equidistant from each other. The number of the plurality of water spray heads 15 is determined by the length of the horizontal part 4 of the outer barrel of the washing machine. The corresponding parts of the inner wall 7.1 of the horizontal part of the outer barrel of the washing machine and the outer wall 9 of the inner barrel of the washing machine should be fully in contact with the water flow sprayed by the plurality of water spray heads 15. The plurality of water spray heads 15 face the outer wall 9 of the inner barrel of the washing machine. The plurality of water spray heads 15 and the inner wall 7.1 of the horizontal part of the outer barrel of the washing machine are in the same plane without any concave or convex parts. The self-cleaning water inlet pipe 16, the horizontal self-cleaning water supply pipe 13, the plurality of self-cleaning water supply branch pipes 22, and the plurality of water spray heads 15 are interconnected.

[0025] Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 In the embodiment, a vertical self-cleaning water supply pipe 14 and a plurality of self-cleaning water supply branch pipes 22 are installed on the outer wall 8 at the bottom of the outer barrel of the washing machine, and a plurality of water spray heads 15 are installed on the inner wall 8.1 at the bottom of the outer barrel of the washing machine. The plurality of self-cleaning water supply branch pipes 22 pass through the outer wall 8 at the bottom of the outer barrel of the washing machine and are interconnected with the plurality of water spray heads 15. The plurality of water spray heads 15 are equidistant from each other. The number of the plurality of water spray heads 15 is determined by the radius length of the outer wall 8 at the bottom of the outer barrel of the washing machine. The inner wall 7.1 at the horizontal part of the outer barrel of the washing machine and the corresponding part of the outer wall 9 of the inner barrel of the washing machine should be fully in contact with the water flow sprayed by the plurality of water spray heads 15. The plurality of water spray heads 15 face the outer wall 9 of the inner barrel of the washing machine. The plurality of water spray heads 15 are in the same plane with the inner wall 8.1 at the bottom of the outer barrel of the washing machine, and there should be no concave or convex parts. The self-cleaning water inlet pipe 16, the vertical self-cleaning water supply pipe 14, the plurality of self-cleaning water supply branch pipes 22, and the plurality of water spray heads 15 are interconnected.

[0026] Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5In the process, after the program control circuit 24 of the fully automatic drum washing machine enters the dehydration program, power is provided to the drainage motor or drainage pump 21 and the self-cleaning control circuit 20 of the washing machine through the A and B lines at the same time, and the self-cleaning control circuit 20 starts the self-cleaning water supply solenoid valve 18.2, and the water flows through the water supply solenoid valve inlet pipe 19, the self-cleaning water supply solenoid valve 18.2, and the self-cleaning water supply solenoid valve outlet pipe 17 to supply water to the self-cleaning water inlet pipe 16, and the self-cleaning water inlet pipe 16 supplies water to the conical self-cleaning water supply pipe 12, the horizontal self-cleaning water supply pipe 13, the vertical self-cleaning water supply pipe 14, and the multiple self-cleaning water supply pipes 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75 The cleaning water supply branch pipe 22 and multiple water spray heads 15 supply water. The multiple water spray heads 15 spray water to various parts of the outer wall 9 of the inner barrel of the washing machine to clean the residual dirt and harmful bacteria on the surface of each part. At this time, since the inner barrel 2 of the washing machine is in a high-speed rotating state, the water flow sprayed by the multiple water spray heads 15 and the high-speed rotating outer wall 9 of the inner barrel of the washing machine will form a water flow on the surface of the inner and outer barrel interlayers 11 of the washing machine, and the residual dirt and harmful bacteria on the surface of the inner and outer barrel interlayers 11 of the washing machine will be thoroughly cleaned. The residual dirt and harmful bacteria are discharged to the outside of the washing machine through the drain pipe of the washing machine with the water flow. By changing the resistance of R1 and the capacity of C2, the time when the self-cleaning water supply solenoid valve 18.2 starts to supply water to the self-cleaning spray device of the washing machine can be set, and by changing the resistance of R2 and the capacity of C4, the time when the self-cleaning water supply solenoid valve 18.2 stops supplying water to the self-cleaning spray device of the washing machine can be set.

[0027] Figure 6 In the figure, the conical self-cleaning water supply pipe 12, the horizontal self-cleaning water supply pipe 13, and the vertical self-cleaning water supply pipe 14 are sequentially connected to form a group of self-cleaning water supply pipes. Three groups of self-cleaning water supply pipes are arranged in the structure of the washing machine outer barrel 1. The positions of the three groups of self-cleaning water supply pipes are respectively at the top of the washing machine outer barrel 1, the left side of the washing machine outer barrel 1, and the right side of the washing machine outer barrel 1, and are connected to the self-cleaning water inlet pipe 16.

[0028] Figure 6 In the structure of the outer barrel 1 of the washing machine, the conical self-cleaning water supply pipe 12, the horizontal self-cleaning water supply pipe 13, the vertical self-cleaning water supply pipe 14, the water spray head 15, the self-cleaning water supply branch pipe 22, and the self-cleaning water inlet pipe 16 are interconnected to form a self-cleaning spray device for the washing machine.

[0029] Figure 1 , Figure 5 , Figure 6 In the process, the water spray head 15 sprays water toward the outer wall 9 of the inner barrel of the washing machine, so that the outer wall 9 of the inner barrel of the washing machine is fully in contact with the water flow during the self-cleaning process. While the inner barrel 2 of the washing machine rotates at a high speed, the inner and outer barrel interlayers 11 of the washing machine are fully in contact with the water flow, and the residual dirt and harmful bacteria on the surface of the inner and outer barrel interlayers 11 of the fully automatic drum washing machine are completely removed, thereby achieving the purpose of self-cleaning of the fully automatic drum washing machine.

Claims

1. A fully automatic self-cleaning drum washing machine, in which the inner drum of the washing machine is installed inside the outer drum of the washing machine in the washing machine box and is connected by the inner drum transmission shaft of the washing machine, and is combined with a washing tub water supply solenoid valve, a detergent box water supply solenoid valve, a program control circuit, a washing machine drainage motor, a self-cleaning control circuit, a self-cleaning water supply solenoid valve, a water supply solenoid valve outlet pipe, a self-cleaning water inlet pipe, three groups of self-cleaning water supply pipes, a plurality of self-cleaning water supply branch pipes, and a plurality of water spray heads. The fully automatic washing machine self-cleaning control system composed of the self-cleaning control circuit, the self-cleaning water supply solenoid valve, the water supply solenoid valve outlet pipe, the self-cleaning water inlet pipe, three groups of self-cleaning water supply pipes, a plurality of self-cleaning water supply branch pipes, and a plurality of water spray heads is characterized in that: In the self-cleaning control circuit, the 3rd and 4th pins of the starting coil of the relay J1 are respectively connected to the 1st and 2nd pins of the power input terminal of the washing machine drainage motor, the 1st and 2nd pins of the relay J1 are connected to the AC 220V power supply of the washing machine, the 1st and 5th pins of the relay J1, the switch J1-1 of the relay J1, and one end of the primary coil L1 of the 12V transformer B are connected to each other, the 2nd and 6th pins of the relay J1, the switch J1-2 of the relay J1, and the other end of the primary coil L1 of the 12V transformer B are connected to each other, the two ends of the secondary coil L2 of the 12V transformer B are connected to the AC input terminal of the rectifier circuit composed of D1-D4, the DC output terminal of D1-D4 is connected to the 1st pin of the power input terminal of the 8V three-terminal voltage regulator integrated circuit IC1 7808, and the 8V three-terminal voltage regulator integrated circuit IC1 Pin 3 of the power output terminal of 7808 is connected to the power supply of the first-stage delay circuit composed of the timing integrated circuit IC2NE555, C2, R1, C3, and relay J2. Pin 1 of the start coil of relay J2 is connected to pin 3 of IC2, and pin 2 is connected to the negative pole of the power supply. One end of the switches J2-1 and J2-2 of relay J2 is respectively connected to the positive pin 3 and negative pin 2 of the power output terminal of the 8V three-terminal voltage regulator integrated circuit IC1 7808. The other ends of the switches J2-1 and J2-2 of relay J2 are respectively connected to the power supply of the second-stage delay circuit composed of C4, R2, C5, timing integrated circuit IC3NE555, and relay J3. Pin 1 of the start coil of relay J3 is connected to IC3 Pin 3 and pin 2 of NE555 are connected to the positive pole of the power supply. One end of the switches J3-1 and J3-2 of relay J3 are connected to the AC 220V power supply of the washing machine respectively. The other ends of the switches J3-1 and J3-2 of relay J3 are connected to the two ends of the starting coil of the water inlet solenoid valve, 1 and 2. An independent self-cleaning water supply solenoid valve is set in the structure of the washing machine. One end of the water inlet pipe of the water supply solenoid valve is connected to the water inlet of the water supply solenoid valve, and the other end of the water inlet pipe of the water supply solenoid valve is connected to the water supply pipeline of the washing machine. The water supply solenoid valve adopts a single water inlet and three water outlet model. The first water outlet of the water supply solenoid valve is connected to the water supply pipe of the washing tub, the second water outlet of the water supply solenoid valve is connected to the water supply pipe of the detergent box, the third water outlet of the water supply solenoid valve is connected to one end of the water outlet of the self-cleaning water supply solenoid valve, the other end of the water outlet of the self-cleaning water supply solenoid valve is connected to one end of the self-cleaning water inlet pipe, the other end of the self-cleaning water inlet pipe is interconnected with three groups of self-cleaning water supply pipes, and a plurality of self-cleaning water supply branch pipes are connected through the structure of the three groups of self-cleaning water supply pipes, each of the self-cleaning water supply branch pipes is connected to a water spray head, and the water spray head is connected to the inner wall of the outer barrel of the washing machine.

2. A fully automatic self-cleaning drum washing machine according to claim 1, characterized in that: A self-cleaning water inlet pipe, three groups of self-cleaning water supply pipes, multiple self-cleaning water supply branch pipes, and multiple water spray heads are arranged in the outer drum structure of the washing machine. The self-cleaning water inlet pipe, three groups of self-cleaning water supply pipes, multiple self-cleaning water supply branch pipes, and multiple water spray heads are interconnected to form a self-cleaning spray device.

3. A fully automatic self-cleaning drum washing machine according to claim 1, characterized in that: Self-cleaning water supply pipes are respectively arranged at three positions in the outer barrel structure of the washing machine. A conical self-cleaning water supply pipe (12) is installed on the conical surface of the outer barrel of the washing machine, a horizontal self-cleaning water supply pipe (13) is installed at the horizontal position of the outer barrel of the washing machine, and a vertical self-cleaning water supply pipe (14) is installed at the bottom of the outer barrel of the washing machine. The conical self-cleaning water supply pipe (12), the horizontal self-cleaning water supply pipe (13), and the vertical self-cleaning water supply pipe (14) are sequentially connected to form a group of self-cleaning water supply pipes.

4. The fully automatic self-cleaning drum washing machine according to claim 1, characterized in that: Three groups of self-cleaning water supply pipes are arranged in the structure of the washing machine outer barrel, and the positions of the three groups of self-cleaning water supply pipes are respectively at the top of the washing machine outer barrel, the left side of the washing machine outer barrel, and the right side of the washing machine outer barrel.

5. The fully automatic self-cleaning drum washing machine according to claim 1, characterized in that: After the washing machine enters the dehydration program, the starting power of the washing machine's drainage motor is used to start the washing machine's self-cleaning control circuit. The washing machine's self-cleaning control circuit starts an independent water supply solenoid valve to provide water flow to the self-cleaning spray device in the washing machine's outer barrel structure, thereby cleaning the remaining dirt and harmful bacteria in various parts of the interlayer between the inner and outer barrels of the washing machine, ensuring the cleanliness of the inside of the washing machine.

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