CN109730605B

CN109730605B - Dish washer cleaning method and dish washer

Info

Publication number: CN109730605B
Application number: CN201910189296.9A
Authority: CN
Inventors: 魏松涛; 谢静静; 栗婷芳; 李沿; 雷利; 魏贝贝; 李亚龙; 魏京涛; 王云飞; 张凯
Original assignee: Feixiang Semiconductor Co ltd
Current assignee: Feixiang Semiconductor Co ltd
Priority date: 2019-03-13
Filing date: 2019-03-13
Publication date: 2023-07-07
Anticipated expiration: 2039-03-13
Also published as: CN109730605A; WO2020182022A1

Abstract

The invention provides a dish washing method and a dish washing machine, and relates to the technical field of dish washing machines, wherein the dish washing method comprises the following steps: s1, washing an article to be cleaned; s2, detecting the PH value and/or conductivity value of the effusion in the cleaning cavity; s3, discharging the accumulated liquid in the cleaning cavity when the PH value and/or the conductivity value of the accumulated liquid exceeds a preset range, and repeatedly executing the steps S1-S2; s4, discharging the accumulated liquid in the cleaning cavity and stopping flushing when the PH value and/or the conductivity value of the accumulated liquid are/is in a preset range. Judging whether the water in the cleaning cavity is seriously polluted or not by detecting the PH value and/or the conductivity value, discharging the seriously polluted water, and reducing the probability of cross pollution in the cleaning process.

Description

Dish washer cleaning method and dish washer

Technical Field

The invention relates to the technical field of dish washers, in particular to a dish washer cleaning method and a dish washer.

Background

With the development of science and technology and the improvement of living standard of people, various household appliances gradually enter home, and the degree of automation is also higher and higher. Such as a household dishwasher, to free people from the complicated household after entering the household, and to allow more time to engage in some other activities. However, most dish washers in the prior art adopt circulating water to wash the articles to be washed in the dish washer, and when the articles to be washed are seriously polluted, the articles to be washed can be repeatedly washed by sewage, so that cross pollution is caused. Along with the continuous pursuit of people on food materials and food quality, the influence of cleaning liquid, water quality and cleaning effect is avoided, water, electricity and time costs are saved, and a novel dish washer is needed.

Disclosure of Invention

The invention aims to provide a dish washing method and a dish washing machine, so as to solve the technical problem that the existing dish washing machine is poor in dish washing effect.

Embodiments of the present invention are implemented as follows:

in a first aspect, an embodiment of the present invention provides a method for cleaning a dishwasher, including the steps of:

s1, washing an article to be cleaned;

s2, detecting the PH value and/or conductivity value of the effusion in the cleaning cavity;

s3, discharging the accumulated liquid in the cleaning cavity when the PH value and/or the conductivity value of the accumulated liquid exceeds a preset range, and repeatedly executing the steps S1-S2;

s4, discharging the accumulated liquid in the cleaning cavity and stopping flushing when the PH value and/or the conductivity value of the accumulated liquid are/is in a preset range.

Further, the step S1 includes the steps of:

s11, washing the articles to be cleaned by using a heated gas-liquid mixture, wherein the gas-liquid mixture comprises air and water.

Further, the step S1 includes the step performed after the step S11:

s12, washing the articles to be cleaned by using the unheated gas-liquid mixture.

Further, the step S1 includes the step performed before the step S11:

s10, softening the water in the gas-liquid mixture.

Further, the dishwasher cleaning method further includes the step of, after S4:

s5, drying the articles to be cleaned by using the heated air.

Further, the dishwasher cleaning method further includes the step of, after S5:

s6, cooling the articles to be cleaned by using air.

In a second aspect, an embodiment of the present invention provides a dishwasher, comprising: a cleaning chamber for accommodating articles to be cleaned, and a spray device capable of spraying a cleaning solution toward the inside of the cleaning chamber; a drainage mechanism is arranged in the cleaning cavity and used for draining accumulated liquid in the cleaning cavity;

the dishwasher further comprises a pH sensor and/or a conductivity sensor for detecting the pH value and/or the conductivity value of the liquid accumulation in the washing cavity; and a control main board electrically connected with the PH sensor and/or the conductivity sensor respectively;

the control main board is also electrically connected with the drainage mechanism and the spraying device respectively, and is used for controlling the drainage mechanism to drain the effusion in the cleaning cavity and controlling the spraying device to flush the cleaning cavity when the PH value and/or the conductivity value of the effusion in the cleaning cavity exceed the preset range; and the control main board is used for controlling the drainage mechanism to drain the accumulated liquid in the cleaning cavity and controlling the spraying device to stop flushing when the PH value and/or the conductivity value of the accumulated liquid are/is in a preset range.

Further, the spraying device comprises an air inlet mechanism, a water inlet mechanism, a heating mechanism and a spraying mechanism, wherein the air inlet mechanism and the water inlet mechanism are respectively connected with an inlet of the heating mechanism, and the spraying mechanism is connected with an outlet of the heating mechanism so that the spraying mechanism can spray the mixture of heated water and air.

Further, a first shelf and a second shelf are arranged in the cleaning cavity up and down; the spray mechanism comprises an upper spray header, a middle spray header and a lower spray header which can be used for spraying at least one of water, air and a mixture of water and air; the upper spray header is positioned above the first shelf and the spraying direction is downward, the lower spray header is positioned below the second shelf and the spraying direction is upward, the middle spray header is positioned between the first shelf and the second shelf and the spraying direction is respectively towards the first shelf and the second shelf.

Further, the water inlet mechanism comprises a water inlet pipe, a water pump, a soft water processor and a first flow sensor, wherein the water inlet pipe, the water pump and the soft water processor are sequentially communicated from outside to inside, and the first flow sensor is used for detecting flow information of water processed by the soft water processor.

Further, the air inlet mechanism comprises an air filter, an air pump and a second flow sensor, wherein the air filter, the air pump and the second flow sensor are sequentially communicated from outside to inside, and the second flow sensor is used for detecting flow information of air in an air pipeline.

Further, the heating mechanism comprises a heating pipe for heating water and/or air, and a third flow sensor for detecting the flow in the heating pipe; a heating tube temperature sensor for detecting the temperature of the heating tube.

Further, the heating pipe is made of metal, and the heating mechanism comprises an electromagnetic coil wound on the outer wall of the heating pipe and is used for heating the heating pipe through high-frequency electromagnetic waves.

Further, the heating pipe is made of metal, and comprises an inner pipe wall, an outer pipe wall, a first end wall and a second end wall, wherein the inner pipe wall is sleeved with the outer pipe wall, and a gap is reserved between the inner pipe wall and the outer pipe wall; the first end wall is in sealing connection with the inner pipe wall and the outer pipe wall at one end of the heating pipe, the second end wall is in sealing connection with the inner pipe wall and the outer pipe wall at the other end of the heating pipe, and the inner pipe wall, the outer pipe wall, the first end wall and the second end wall form a heating cavity; the first end wall is provided with an inlet communicated with the heating cavity, and the second end wall is provided with an outlet communicated with the heating cavity; the heating mechanism comprises an electromagnetic coil arranged on the inner side of the inner pipe wall and is used for heating the heating pipe through high-frequency electromagnetic waves.

The embodiment of the invention has the following beneficial effects:

the dish washer cleaning method provided by the embodiment of the invention comprises the following steps: the object to be cleaned is washed, so that the aim of accelerating the dissolution of stains in water can be fulfilled; after washing for a period of time, the PH value and/or the conductivity value of the effusion in the washing cavity are detected, so that the pollution degree in the washing cavity is judged, and whether the washing cavity is washed cleanly or not is judged. When the PH value and/or the conductivity value of the effusion exceed the range, severe pollution is indicated, effusion in the cleaning cavity is discharged, and the articles to be cleaned are cleaned again, so that the pollution of the effusion to the articles to be cleaned can be avoided; when the PH value and/or the conductivity value of the effusion are/is within a preset range, the effusion is cleaned, the effusion is discharged, the flushing is stopped, whether the water in the cleaning cavity is seriously polluted or not is judged by a method for detecting the PH value and/or the conductivity value, the seriously polluted water is discharged, and the probability of cross pollution in the cleaning process is reduced.

According to the dish washer provided by the embodiment of the invention, the PH value and/or the conductivity value of the effusion are detected through the PH sensor and/or the conductivity sensor, so that the pollution degree in the cleaning cavity is judged, whether the cleaning is clean is judged, when the PH value and/or the conductivity value of the effusion in the cleaning cavity exceeds a preset range, serious pollution is indicated, the main board is controlled to control the drainage mechanism to drain the effusion in the cleaning cavity, and the spraying device is controlled to flush the cleaning cavity; when the PH value and/or the conductivity value of the effusion are/is in a preset range, the effusion is cleaned, the main board is controlled to control the drainage mechanism to discharge the effusion in the cleaning cavity, and the spraying device is controlled to stop flushing. Judging whether the water in the cleaning cavity is seriously polluted or not by detecting the PH value and/or the conductivity value, discharging the seriously polluted water, and reducing the probability of cross pollution in the cleaning process.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the related art, the drawings that are required to be used in the description of the embodiments or the related art will be briefly described, and it is apparent that the drawings in the description below are some embodiments of the present invention, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.

FIG. 1 is a flow chart of a dishwasher cleaning method provided by an embodiment of the present invention;

FIG. 2 is a schematic view of a dishwasher according to an embodiment of the present invention;

FIG. 3 is a schematic view of a heating mechanism of a dishwasher according to an embodiment of the present invention;

FIG. 4 is a schematic view of another heating mechanism of a dishwasher according to an embodiment of the present invention;

fig. 5 is a cross-sectional view of another heating mechanism of a dishwasher according to an embodiment of the present invention.

Icon: 100-a cabinet body; 210-a water inlet pipe; 220-a water pump; 230-a soft water treatment device; 240-a first flow sensor; 310-an air filter; 320-an air pump; 330-a second flow sensor; 410-heating the pipe; 411-inner tube wall; 412-outer tube wall; 413-inlet; 414-outlet; 415-heating the cavity; 420-a third flow sensor; 500-spraying mechanism; 510-upper spray header; 520-middle spray header; 530-lower showerhead; 610-PH sensor; 620-conductivity sensor; 630-a temperature sensor; 640-a liquid level sensor; 700-draining valve; 810-electromagnetic coils; 820-electromagnetic shielding sleeve.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 and 2, the method for cleaning a dishwasher according to an embodiment of the present invention includes the steps of: the object to be cleaned is washed, so that the aim of accelerating the dissolution of stains in water can be fulfilled; after washing for a period of time, the PH value and/or the conductivity value of the effusion in the washing cavity are detected, so that the pollution degree in the washing cavity is judged, and whether the washing cavity is washed cleanly or not is judged. When the PH value and/or the conductivity value of the effusion exceed the range, severe pollution is indicated, effusion in the cleaning cavity is discharged, and the articles to be cleaned are cleaned again, so that the pollution of the effusion to the articles to be cleaned can be avoided; when the PH value and/or the conductivity value of the effusion are/is within a preset range, the effusion is cleaned, the effusion is discharged, the flushing is stopped, whether the water in the cleaning cavity is seriously polluted or not is judged by a method for detecting the PH value and/or the conductivity value, the seriously polluted water is discharged, and the probability of cross pollution in the cleaning process is reduced.

In the method, only the PH value can be detected, and the detected PH value is used as the basis for judging whether the cleaning is standard or not; or only detecting the conductivity value, and taking the detected PH value as the basis for judging whether the cleaning is standard or not; and the PH value and the conductivity value can be detected, so that when the PH value or the conductivity value of the effusion exceeds the range in judgment, serious pollution is indicated, and when the PH value and the conductivity value of the effusion are in the preset range, cleaning is indicated. Further, the PH and conductivity values set to be within a range exceeding the above range means not within the range, that is, a maximum value greater than the range or a minimum value less than the range falls outside the range.

The step S1 includes the steps of:

Specifically, the air-liquid mixture of air and water may be heated by the heating pipe 410 and then the articles to be cleaned may be rinsed. The heated mixture of water and air can better dissolve the stains and separate the stains from the articles to be cleaned.

After the washing is carried out by using hot water, the dissolved stains are washed down from the articles to be washed by using cold water, so that a certain energy source can be saved.

The water to be rinsed may be subjected to a softening treatment. Specifically, the water can be subjected to electromagnetic softening by using an alternating high-frequency coil through the water softener, so that the water softening treatment is ensured, and the phenomenon that scales are generated to block the pipeline and spray holes after heating is avoided. A gas-liquid mixture of air and water is used for flushing and is subjected to a high-frequency induction heating process by a heating pipe 410. Initially the hot water temperature is lower, preventing the temperature of the articles to be cleaned from suddenly changing to cause damage. With the rinsing process, the temperature is gradually increased to the set temperature. The gas exists in the water, so that the gas cracking expansion and scouring effects of the water are increased, and the hot water has a good cleaning effect on tableware, thereby achieving the purpose of accelerating cleaning.

In step S1, the washing of the articles to be washed may be performed using only the gas-liquid mixture that has not been heated, for example, when washing vegetables and fruits, the washing may be performed using only the unheated gas-liquid mixture without using the heated gas-liquid mixture.

The spray angle and the scouring degree of the gas-liquid mixture to the tableware can be controlled by reasonably controlling the different proportions of the water pump 220 and the air pump 320 and the pressure value. For example, increasing the air pressure of the air pump 320 may cause the water stream to become finer mist, with a wider spray range.

After flushing for a certain time, a certain water level is reached. By real time monitoring of the PH and conductivity values, it is indicated that the degree of cleaning has been maximized when the PH and conductivity values have indicated that the solution is severely contaminated.

When the liquid is discharged, the residue and the waste liquid after washing can be crushed and discharged. Specifically, the shredder of the dishwasher and the drain valve 700 operate to crush and drain the washed residues and waste liquid, and at the same time, detect the height of the liquid level in the washing chamber through the liquid level sensor 640 to detect whether the accumulated water has been drained cleanly.

The dishwasher cleaning method further comprises the steps performed after S4: s5, drying the articles to be cleaned by using the heated air.

The heated air accelerates the evaporation of water and simultaneously plays a role in sterilization and disinfection, and specifically, the water softener and the water pump 220 stop working, so that the air can be sequentially filtered through the filter, pressurized by the air pump 320, heated by the heating pipe 410 and sprayed, the drying treatment is performed on the internal pipeline and the cleaning cavity, and whether the cleaning cavity is dried or not is judged through the detection of the PH sensor 610, the conductivity sensor 620 and the internal temperature sensor 630.

The pH value can be set to 6.5-8.5, and the conductivity can be set to (0.5-5.0) x 10 ^-2 S/m。

The dishwasher cleaning method further includes the steps performed after S5: s6, cooling the articles to be cleaned by using air.

Specifically, at this time, the heating pipe 410 stops working, the air pump 320 continues to work, the air cooling process is performed on the internal pipe and the cleaning chamber, and after the value of the internal temperature sensor 630 in the cleaning chamber is reduced to the set value, the air pump 320 stops working.

The water softener and the water pump 220 stop operating and the air pump 320 operates. After the air is filtered by the filter, the air is pressurized by the internal air pump 320, heated by the heating pipe 410, and dried by the heating pipe 410 and the spraying holes of the spraying pipe, thereby realizing the drying treatment of the internal pipe and the inside of the dish washer. The solution in the device is prevented from accumulating in the pipeline and the pipeline spray head to cause blockage and corrosion, and the pollution caused by the next cleaning is prevented. The determination of whether drying is completed is achieved by detection of the PH sensor 610, the conductivity sensor 620, and the internal temperature sensor 630. And then enters a cooling stage to cool the inside of the device and tableware. At the same time, the heating tube 410 stops working and the air pump 320 continues to work as an air cooling for the dishes and devices inside the dishwasher. By detecting the internal temperature sensor 630 in the device, the air pump 320 automatically stops when the temperature drops to a set value.

Further, the dishwasher cleaning method further includes the step performed after step S6:

s7, the dish washer enters a standby state. And when the device is not in operation or the automatic operation mode is completed, entering a standby mode. The whole device only works by a gesture sensing sensor and an AI voice recognition sensor, and a standby state work indication is displayed on a display screen.

In a second aspect, the dishwasher provided by the embodiment of the present invention detects the PH value and/or the conductivity value of the effusion through the PH sensor 610 and/or the conductivity sensor 620, so as to determine the pollution degree in the cleaning chamber, to determine whether the cleaning chamber is cleaned, and when the PH value and/or the conductivity value of the effusion in the cleaning chamber exceeds a preset range, to indicate serious pollution, to control the main board to control the drainage mechanism to drain the effusion in the cleaning chamber, and to control the spray device to flush the cleaning chamber; when the PH value and/or the conductivity value of the effusion are/is in a preset range, the effusion is cleaned, the main board is controlled to control the drainage mechanism to discharge the effusion in the cleaning cavity, and the spraying device is controlled to stop flushing. Judging whether the water in the cleaning cavity is seriously polluted or not by detecting the PH value and/or the conductivity value, discharging the seriously polluted water, and reducing the probability of cross pollution in the cleaning process.

The drain mechanism includes a drain port provided in the wash chamber, and a drain valve 700, which may be a solenoid valve, provided at the drain port.

The cleaning cavity is internally provided with a first shelf and a second shelf up and down, articles to be cleaned can be placed on the shelves, and the second shelf is arranged below the first shelf.

The dish washer includes air inlet mechanism, water inlet mechanism, heating mechanism and spray mechanism 500, and air inlet mechanism, water inlet mechanism and spray mechanism 500 all are connected with heating mechanism respectively, and the external air that gets into and external water respectively get into in the heating mechanism through air inlet mechanism and water inlet mechanism, and heating mechanism heats air and water to spray heated air and water through spray mechanism 500 on the washing article of washing in the chamber.

The water inlet mechanism comprises a water inlet pipe 210, a water pump 220, a soft water processor 230 and a first flow sensor 240, wherein the water inlet pipe 210, the water pump 220, the soft water processor 230 and the first flow sensor 240 are sequentially communicated from outside to inside, and the first flow sensor is used for detecting flow information of water processed by the soft water processor 230.

The air intake mechanism includes an air filter 310, an air pump 320, and a second flow sensor 330 that detect flow information of air in the air duct, which are sequentially communicated from outside to inside.

The heating mechanism includes a heating pipe 410 for heating water and/or air, a third flow sensor 420 for detecting a flow in the heating pipe 410, and a heating pipe 410 temperature sensor 630 for detecting a temperature of the heating pipe 410.

The spray mechanism 500 includes an upper spray header 510, a middle spray header 520 and a lower spray header 530, which can be used to spray water, air, and a mixture of water and air, the upper spray header 510 being located above the first shelf with the spray direction downward, the lower spray header 530 being located below the second shelf with the spray direction upward, the middle spray header 520 being located between the first shelf and the second shelf with the spray direction being vertical; the middle spray head can spray upwards and downwards, and the first shelf and the second shelf can be covered by the cooperation of the upper, middle and lower spray heads 530.

The dish washer includes the cabinet body, is provided with the qianmen on the cabinet body, and qianmen driving motor work opens the qianmen. And after the limit switch of the front door recognizes that the position is in place, the position is fed back according to the working time of the driving motor and the position action information of the limit switch. Secondly, after the front door is opened, the articles to be cleaned are placed on the upper shelf and the lower shelf in the device in order manually. And thirdly, after the articles to be cleaned are put in, the gesture sensing sensor or the AI voice recognition sensor recognizes the put-in command, the front door is automatically closed, and the cleaning program is automatically operated after the front door is closed in place.

The upper, middle, and lower showerheads 530 may shower water, air, and a mixture of water and air. When spraying water, heated water only, is the cleaning mode that is present in conventional dishwashers. When only air, heated air, is sprayed, the drying mode is established. When spraying a mixture of water and air, it is the water-saving cleaning mode of the device.

By increasing the distribution density and uniform distribution of the spray holes, the tableware of the cleaning basket is wholly sprayed by the upper, middle and lower spray heads 530, so that the omnibearing cleaning and drying treatment of the tableware is ensured. Meanwhile, the self-cleaning mode of the dish washer ensures the integral cleaning and drying of the integral spray pipeline and the spray header.

As shown in fig. 3, in the heating mechanism provided in this embodiment, the heating tube 410 is made of metal, and the heating mechanism includes an electromagnetic coil 810 wound on an outer wall of the heating tube 410, for heating the heating tube 410 by high-frequency electromagnetic waves.

An electromagnetic shielding case 820 is provided at the outside of the heating tube 410 to shield electromagnetic waves.

As shown in fig. 4 and fig. 5, in another heating mechanism provided in this embodiment, the heating pipe is made of metal, and the heating pipe includes an inner pipe wall 411, an outer pipe wall 412, a first end wall and a second end wall, where the inner pipe wall and the outer pipe wall are sleeved and connected with a gap therebetween; the first end wall is in sealing connection with the inner pipe wall and the outer pipe wall at one end of the heating pipe, the second end wall is in sealing connection with the inner pipe wall and the outer pipe wall at the other end of the heating pipe, and the inner pipe wall, the outer pipe wall, the first end wall and the second end wall form a heating cavity 415; the first end wall is provided with an inlet 413 communicated with the heating cavity, and the second end wall is provided with an outlet 414 communicated with the heating cavity; the heating mechanism includes an electromagnetic coil 810 disposed inside the inner tube wall for heating the heating tube by high frequency electromagnetic. After the two ends of the inner pipe wall 411 and the outer pipe wall 412 are sealed, a heating cavity 415 is formed by an interlayer between the inner pipe wall 411 and the outer pipe wall 412, the electromagnetic coil 810 heats the inner pipe wall 411, water and/or air in the heating cavity can be heated, the inner surface of the heating pipe is subjected to electromagnetic induction to generate a hot induction surface, the heating area of electromagnetic induction is expanded, and the whole metal pipe plays a shielding role on the electromagnetic induction coil. The heating mechanism with the structure is convenient to produce, maintain and replace, increases the heating area and the heating rate, can also play a shielding role on the inner pipe wall, and reduces the cost of the shielding cover.

The pressure release valve communicated with the outside is arranged on the side wall of the cleaning cavity, so that pressure release is automatically carried out when the internal pressure of the device is overlarge, and the phenomenon that the internal pressure of the device is overlarge and out of control is avoided.

The control main board of the dish washer provided by the embodiment of the invention is respectively and electrically connected with the following modules:

1. USB module: USB is used for data communication between the device and the outside, and the device work log can be exported through a USB interface. The device is connected with an external PC through a USB interface, and the working parameters of the device are configured through corresponding upper computer software.

2. WIFI module: the device realizes the data interaction between the device and a local area network or the Internet through a WIFI wireless communication mode.

3. Power management circuit: the device is used for data monitoring and function control of the working state of the internal working power supply of the device.

4. Gesture recognition sensor: and through gesture recognition, non-contact control of the working mode and the function of the equipment is realized.

The gesture sensing sensor includes an electric field sensing recognition method, an acoustic wave signal recognition method, a radar signal recognition method, a photoelectric signal recognition method, and the like. And the selection of the working mode is realized by a non-contact identification mode.

The DFRobot 3D gesture recognition sensor is a near electric field principle; the sound wave recognition is generally ultrasonic wave recognition; radar signal identification is generally 2.4G and 5G high-frequency radio signal identification; preferably, the photoelectric sensor using the photoelectric signal recognition method is implemented by a sensor such as a non-contact type photoelectric sensor chip E527.16, PAJ7260u2 gesture recognition sensor for gesture recognition.

5. AI speech recognition sensor: a voice recognition method using an unspecific voice recognition chip based on LD3320, or a voice recognition method based on the internet, or an AI voice recognition scheme such as an AI chip GX8010 scheme of the internet of things, or the like is used. By means of voice recognition, non-contact control of the working mode and the function of the equipment is achieved.

6. And (3) key pressing: for on-off control of the device, and manual function selection and setting.

7. And a storage unit: for storing configuration information and a work log of the device.

8. Flow sensor 1: the device is used for detecting the flow information of water in the pipeline and is used for real-time monitoring and working state feedback of the working state of the device.

9. Flow sensor 2: the device is used for detecting the flow information of the air in the pipeline and is used for real-time monitoring and working state feedback of the working state of the device.

10. Flow sensor 3: for detecting flow information in the heating pipe 410 in the pipe as real-time monitoring of the device operating state and operating state feedback.

11. Level sensor 640: for detecting the level of the solution inside the device.

12. PH sensor 610: for detecting the PH of the solution in the device. The degree of contamination of the reaction solution is determined by the PH of the solution, thereby determining the degree of cleanliness of the interior of the apparatus.

13. Conductivity sensor 620: for detecting conductivity values of the solution within the device. The degree of contamination of the reaction solution is determined by the conductivity value of the solution, thereby determining the degree of cleanliness inside the apparatus.

The degree of cleanliness within the apparatus is determined by the PH sensor 610 and the conductivity sensor 620, by the PH value and conductivity value of the solution, and by the degree of contamination of the reaction solution. And the detection of the dryness is achieved by the cooperation of the solution temperature sensor 630 and the conductivity sensor 620.

14. Heating tube 410 temperature sensor 630: for detecting the temperature of the heating tube 410, the control circuit realizes accurate control of the temperature of the heating tube 410 by monitoring the temperature of the heating tube 410.

15. An internal temperature sensor 630: the device is used for detecting the temperature of the solution in the device and monitoring the temperature condition in the device in real time.

16. Heating tube 410: for heating of solutions or gases in pipes. The heating tube 410 is usually heated by a heating tube 410 made of heating wires, and the heating tube 410 adopts the electromagnetic induction principle in the invention. The heating effect is efficiently and rapidly achieved, and the heating efficiency can reach more than 95% due to the adoption of electromagnetic induction heating.

17. Drainage solenoid valve: for opening and closing the drain valve 700, the drain valve is controlled by a drain solenoid valve to perform a drain operation.

18. A pulverizer: the device is used for smashing the cleaned residues, is convenient for automatically processing the residues, and avoids blocking a drainage electromagnetic valve.

19. Front door driving motor: the opening and closing actions of the front door are realized by controlling the front door driving motor.

20. The water pump 220: for sucking water and pressurizing the water to enter the pipeline through the check valve: for blocking the solution or gas on the left side of the check valve and preventing the backflow of the fluid. The device uses SOCLA EA series contamination check valves, as well as other check valves.

21. An air pump 320: for sucking air and pressurizing through a check valve into the duct, the check valve: for blocking the solution or gas on the left side of the check valve and preventing the backflow of the fluid. The device uses SOCLA EA series contamination check valves, as well as other check valves.

22. Soft water treatment device: a device for softening water. Soft water treatment device: the present invention adopts electromagnetic softening treatment mode of alternating high-frequency coil.

23. And (3) an exhaust valve: and an exhaust port for controlling the release of the gas pressure in the device.

24. A pressure sensor: for detecting the value of the gas pressure within the device. When the pressure is too high, the exhaust valve works to release pressure.

25. A loudspeaker: for voice indication of the device operating condition.

26. And (3) a display screen: for the display of the operating state of the device and the corresponding information.

27. And (3) a main control board: for detection of the respective sensors of the apparatus, control of the respective execution means, and the like.

The dish washer provided by the embodiment of the invention has the advantages that:

1. induction operation: the gesture induction sensor and the AI voice recognition sensor are used for controlling in a non-contact mode, so that pollution of contact operation to an operation interface of the device is avoided, and cross pollution is avoided.

2. Simple structure, low noise: the interior of the device reduces the hidden structure inside the device, reduces the structural complexity inside the device, and avoids cross contamination of cleaning by using the circulating water pump 220.

3. The spray component is optimally designed, and the number of the rotating edges is increased by increasing the distribution and the density of spray holes, so that the flushing distribution is more uniform.

4. The heating pipe 410 high-frequency induction heating mode improves heating efficiency and cleaning efficiency: the device is flushed with a gas-liquid mixture of air and water and is heat treated by the heating tube 410 for the purposes of speeding up the cleaning and saving water. By reasonably controlling the different proportions of the water pump 220 and the air pump 320 and the pressure value, the injection angle of the gas-liquid mixture can be controlled, and the maximum injection coverage can be realized.

5. High reliability and fault self-diagnosis: in the whole device, each execution part is provided with working current detection, and the working state is fed back in real time through the detection of the working current. The device has a startup self-diagnosis function, and the working reliability of the device is ensured and the performance state of the device is known through the self-diagnosis of each sensor and the execution part. And through the real-time monitoring to multiple sensors, the cooperation of multiple sensors jointly reflects the working state of equipment, has improved the job stabilization nature and the reliability of device.

6. Self-cleaning function: the whole device does not use the circulating cleaning liquid for flushing operation, thereby reducing the complexity of the device. By performing a self-cleaning function, dead-angle-free cleaning of the inside of the device as well as the entire pipe and drain valve 700 is achieved.

7. Washing degree detection and drying degree detection: the degree of cleanliness within the apparatus is determined by the PH sensor 610 and the conductivity sensor 620, by the PH value and conductivity value of the solution, and by the degree of contamination of the reaction solution. And the detection of the dryness is achieved by the cooperation of the solution temperature sensor 630 and the conductivity sensor 620.

12. Heating tube 410 temperature sensor 630: for detecting the temperature of the heating tube 410, the control circuit realizes accurate control of the temperature of the heating tube 410 by monitoring the temperature of the heating tube 410.

13. Solution temperature sensor 630: the device is used for detecting the temperature of the solution in the device and monitoring the temperature condition in the device in real time.

14. The heating is rapid, and the electric energy is saved: the electromagnetic induction heating mode improves the heating speed and saves the electric energy by directly heating the introduced solution and gas.

15. Through the frame and the structure, the efficient cleaning of the tableware is completed by using hot water without adding a detergent. And the design is more convenient for soft water treatment, thereby achieving better sterilization and cleaning effects.

16. With the heating of gas and water, when the outlets of the exhaust valve, the drainage electromagnetic valve and the like are closed, the heating is continued to a certain extent, the pressure in the dish washer can be higher than the atmospheric pressure, the heating temperature can also reach 100 ℃, and the aim of high-temperature and high-pressure sterilization is fulfilled.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A dishwasher, comprising: a cleaning chamber for accommodating articles to be cleaned, and a spray device capable of spraying a cleaning solution toward the inside of the cleaning chamber; a drainage mechanism is arranged in the cleaning cavity and used for draining accumulated liquid in the cleaning cavity;

the dishwasher further comprises a pH sensor for detecting the pH value of the effusion in the washing cavity; and a control main board electrically connected with the PH sensor respectively;

the control main board is also electrically connected with the drainage mechanism and the spraying device respectively, and is used for controlling the drainage mechanism to drain the accumulated liquid in the cleaning cavity and controlling the spraying device to flush the cleaning cavity when the PH value of the accumulated liquid in the cleaning cavity exceeds a preset range; the control main board is used for controlling the drainage mechanism to drain the accumulated liquid in the cleaning cavity and controlling the spraying device to stop flushing when the PH value of the accumulated liquid is in a preset range;

the spraying device comprises an air inlet mechanism, a water inlet mechanism, a heating mechanism and a spraying mechanism, wherein the air inlet mechanism and the water inlet mechanism are respectively connected with an inlet of the heating mechanism, and the spraying mechanism is connected with an outlet of the heating mechanism so that the spraying mechanism can spray heated water and air mixture or unheated air or unheated water;

the heating mechanism comprises a heating pipe for heating water and/or air, and a third flow sensor for detecting the flow in the heating pipe; a heating pipe temperature sensor for detecting a temperature of the heating pipe;

the heating pipe is made of metal and comprises an inner pipe wall, an outer pipe wall, a first end wall and a second end wall, wherein the inner pipe wall is sleeved with the outer pipe wall, and a gap is reserved between the inner pipe wall and the outer pipe wall; the first end wall is in sealing connection with the inner pipe wall and the outer pipe wall at one end of the heating pipe, the second end wall is in sealing connection with the inner pipe wall and the outer pipe wall at the other end of the heating pipe, and the inner pipe wall, the outer pipe wall, the first end wall and the second end wall form a heating cavity; the first end wall is provided with an inlet communicated with the heating cavity, and the second end wall is provided with an outlet communicated with the heating cavity; the heating mechanism comprises an electromagnetic coil arranged on the inner side of the inner pipe wall, and an inlet wire and an outlet wire of the electromagnetic coil are led out from a port of the inner pipe wall and used for heating the heating pipe through high-frequency electromagnetic waves.

2. The dishwasher of claim 1, wherein the washing chamber is provided with a first rack and a second rack up and down; the spray mechanism comprises an upper spray header, a middle spray header and a lower spray header which can be used for spraying at least one of water, air and a mixture of water and air; the upper spray header is positioned above the first shelf and the spraying direction is downward, the lower spray header is positioned below the second shelf and the spraying direction is upward, the middle spray header is positioned between the first shelf and the second shelf and the spraying direction is respectively towards the first shelf and the second shelf.

3. The dishwasher of claim 1, wherein the water inlet mechanism comprises a water inlet pipe, a water pump, a soft water processor and a first flow sensor for detecting flow information of water treated by the soft water processor, which are sequentially communicated from outside to inside.

4. The dishwasher of claim 1, wherein the air intake mechanism comprises an air filter, an air pump, and a second flow sensor for detecting flow information of air in the air duct, which are sequentially communicated from outside to inside.