CN100427021C - Household Split Dishwasher - Google Patents

Abstract

The invention relates to a household split type dishwasher, which comprises three parts: a desktop dishwashing cabinet, a dish basin, and a fresh water tank; The dishwashing process is divided into two stages. The first stage is carried out in the dish basin. First, the tableware is soaked in the hot water of the dish basin at will, then the dishwashing liquid is injected, and the water pump is started to make the dish soap solution in the dish basin. The circular flow is used to rinse the tableware, and then the tableware is manually scrubbed one by one and put into the designated position in the dishwashing cabinet; the second stage is machine washing, which is carried out in the dishwashing cabinet. Combined to complete the cleaning, disinfection and drying work. Moreover, the used water can be reused, and the washing water can be reused three times, which saves water and electricity to the greatest extent. The dishwasher is characterized in that it is small in size and large in capacity, the main part is placed on the stove, and the deep concave tableware can be densely placed in the dishwashing cabinet, which is convenient for accessing the tableware and has a very high cleaning rate.

Description

Household Split Dishwasher

technical field

The invention relates to a household split type dishwasher.

Background technique

The main principle of household dishwashers currently on the market (hereinafter referred to as dishwashers) is to use recycled high-temperature and high-pressure water flow in conjunction with special machine-washing tableware detergents to achieve the purpose of cleaning tableware. Since most families generally use a large number of deep concave tableware such as large bowls and small bowls, in order to improve the cleaning rate, dishwashers often adopt a sparse bowl arrangement method, which cannot make full use of the space in the dishwasher. There are still many dead angles in the internal spray cleaning, resulting in a cleaning rate that cannot meet the user's requirements, and is difficult to adapt to the small situation of the user's kitchen. In addition, in order to avoid the impact of foam on the cleaning process, instead of using the dishwashing liquid commonly used in hand washing, a special detergent for machine-washing tableware is used, which causes inconvenience to users. Large size, inconvenient, and low cleaning rate make it difficult for people to generally accept machine washing instead of hand washing.

Dishwashers used in hotels and restaurants can thoroughly wash a large number of tableware, but they are bulky, consume a lot of water and electricity, and are not suitable for home use.

Contents of the invention

The dishwashing liquid described herein refers to household hand dishwashing detergents.

Household dishwashers must be small in size, large in capacity, high in cleaning efficiency, and easy to use for tableware in order to be popular in the market, especially in the current situation where the population of modern families is small and the pressure of washing dishes is not too great. premise.

The dishwasher of the present invention refers to the advantages of general household dishwashers and the advantages of commonly used disinfection cupboards. It is believed that under the condition of limited resources (kitchen area, water and electricity consumption), split type and man-machine combination should be adopted. way to solve this problem. That is, the process of degreasing and staining the tableware is solved outside the dishwashing cabinet under the cooperation of manpower, and can be easily completed by manpower through the dishwashing basin provided by the present invention under the cooperation of detergent, with little time and energy consumption. The way of man-machine combination is to divide the dishwashing process into two steps. First, soak the tableware in the hot water of the dish basin at will, inject detergent, start the water pump to circulate the detergent solution in the dish basin, so as to rinse the tableware, and then manually scrub the tableware one by one and put them in The designated location in the dishwashing cabinet; the second step is to start the dishwashing cabinet for cleaning, disinfection and drying.

Due to the abandonment of the whole process of fully automatic dishwashing in the dishwasher, manual intervention in the dishwashing process, the use of dishwashing liquid, and manual monitoring of the cleaning standards have solved the problem of a small number of stubborn stains on tableware that are difficult to machine wash. In addition, since the tableware has been degreased and stained, it can be densely placed in the dishwashing cabinet during machine washing, which greatly reduces the volume of the dishwashing cabinet, and the height also meets the applicable requirements of users. The water used in the dishwashing cabinet is discharged into the washbasin or the clean water tank for the next time of washing dishes, which achieves the purpose of reuse and saving. In ordinary integrated household dishwashers, it cannot be used The water used for the above two times is reused.

Dishwasher of the present invention (see Fig. 1) has included the desktop dishwashing cabinet 1 that has ozone disinfection and drying device, is arranged on the dishwashing basin 2 on the kitchen range top 6 outside dishwashing cabinet 1, is arranged on the dishwashing basin The clear water tank 3 below 2, the support steel frame 4 of washbasin and clean water tank. It is characterized in that the dishwashing cabinet is placed on the stove top, the upper half of the dish basin protrudes from the top, and the rest and the clean water tank are supported by a steel frame and hidden under the top. The parts are connected by pipelines.

In the dishwasher of the present invention, the tap water inlet pipe, circulating water pipe, and exhaust pipe are all led out from the back of the dishwashing cabinet, and the circulating water pipe and exhaust pipe are connected from the back of the dish basin downwards through the stove. The layout is reasonable and easy to install. .

Most domestic dishwashers do not use separate methods, and the tableware is placed sparsely, resulting in a low utilization rate of the dishwasher space and prone to water spray dead ends, resulting in a low cleaning rate. Practice has shown that removing tableware stains and oil stains is the main link of water and power consumption. The dishwashing machine of the present invention adopts the method of separating the dishwashing basin and the dishwashing cabinet, and soaks the tableware in the dishwashing basin by using the residual temperature of hot water retained during the last dishwashing, so that the removal of tableware stains and oil stains can be done during dishwashing. The washing method is carried out by immersion in the basin, and the temperature is about 40°C-45°C. Most of the stains and oil stains on the tableware are dissolved in the hot water under the slow washing of flowing hot water containing detergent, supplemented by Manual scrubbing can complete the process of removing tableware stains and oil stains, and manual monitoring of cleaning standards can also solve the problem of a small number of stubborn stains on tableware that are difficult to machine wash. Some cooking utensils can also be washed by hand in the sink to remove stains. The used water in the dish basin can be discharged into the sewer, or it can be discharged into other containers for reuse. Save water to the greatest extent.

Secondly, ordinary integrated household dishwashers produce a large amount of high-temperature steam when drying dishes, which is discharged out of the machine, and a large amount of electric energy consumed is not used. The dishwasher of the present invention guides the high-temperature steam generated when the dishwashing cabinet dries the dishes to the dishwashing basin for heat exchange, and maximizes the use of a large amount of electric energy consumed when drying the dishes.

Although the dishwashing basin of the dishwasher of the present invention takes up a large space and occupies the originally not ample stove top, its lid is flat and has a certain load-bearing capacity, so it can be used when preparing meals. Place large food baskets or even pots, pots and other items to make one thing multi-purpose, reducing the inconvenience of users.

The dishwasher of the present invention adopts the combined method of spraying and immersion washing during machine washing, and immersion does not mean immersing all tableware, and the dishes can be effectively rinsed by spraying. Therefore place the dishes in the upper spray area of the dishwashing cabinet. Immersion washing allows for a dense arrangement of dishes, maximizing the use of space in the dishwashing cabinet. The water line in the washing room is about 18-20cm, and the water is more than 22 liters at a time.

The dishwasher of the present invention is controlled by a single-chip microcomputer, is flexible and reliable, and conforms to the current trend of upgrading household appliances.

The dishwashing machine of the present invention uses dishwashing liquid as a detergent, does not need a special machine-washing tableware detergent but has a very high cleaning rate; the deep concave tableware can be densely placed in the dishwashing cabinet and can be fully cleaned , access to tableware is convenient, and the washing water can be reused three times, saving water to the greatest extent, which is the greatest feature of the dishwasher of the present invention.

Small in size and large in capacity, the main part is placed on the stove, which is convenient to use and convenient to be placed in most family kitchens. This is the biggest advantage of the dishwasher of the present invention.

The desktop split dishwasher of the present invention will bring people a refreshing feeling and make it possible to wash dishes easily, which will liberate people's heavy housework to a considerable extent, so this is a practical household dishwasher suitable for the public. dishwasher.

Description of drawings:

Fig. 1 is a comprehensive schematic diagram of the appearance of each component of the dishwasher of the present invention.

Fig. 2 is a schematic cross-sectional view of the front of the dishwashing cabinet in the dishwasher of the present invention.

Fig. 3 is a schematic cross-sectional view of the side of the dishwashing cabinet in the dishwasher of the present invention.

FIG. 4 is a schematic view of the operation panels A and B of the dishwasher of the present invention.

Fig. 5 is a schematic sectional view of the control room under the dishwashing cabinet in the dishwasher of the present invention.

Fig. 6 is a schematic top view of the control room in Fig. 5 taken along A---A.

Fig. 7 is a schematic cross-sectional view of the side of the dishwashing basin, clean water tank, supporting steel frame and its drainage and exhaust system of the dishwasher of the present invention.

Fig. 8 is a schematic diagram (rear view) of the relationship between the water pump of the dishwasher of the present invention and its surrounding solenoid valves, connecting pipes, washbasins, and clean water tanks.

The dishwasher of the present invention will be described in detail below with reference to the accompanying drawings. First, the appearance and composition of each component of the dishwasher will be described.

See Figure 1. The dishwasher of the present invention comprises a desktop dishwashing cabinet 1 with an ozone disinfection and drying device, a dishwashing basin 2 arranged on the outer stove top of the dishwashing cabinet 1, a clean water tank 3 arranged below the dishwashing basin 2, The supporting steel frame 4 of the washbasin 2 and the clean water tank 3. The control room 500, the operation panel A1500 and the washbasin operation panel B2500 are located at the bottom of the dishwashing cabinet 1. It is characterized in that the dishwashing cabinet 1 is placed on the countertop 6, the upper half of the dish basin 2 protrudes from the countertop 6, and the rest and the clean water tank 3 are supported by the steel frame 4 and hidden under the countertop 6. The parts are connected by pipelines.

Tap water inlet pipe 101, circulating water pipes 102 and 103, exhaust pipe 104 are all drawn from dishwashing cabinet 1 back side. It is characterized in that the circulating water pipes 102 and 103 and the exhaust pipe 104 pass through the stove 6 from the back of the dish basin 2 to connect to the dish basin 2, the clean water tank 3, the water pump 554, the main drain pipe 105, etc., so that the dishwasher constitutes a A complete whole, and reasonable layout, easy to install.

Each part is described below.

See Figure 2 and Figure 3. One is the dishwashing cabinet 1, which is box-shaped, made of steel plates and covered with heat-insulating material. The door 11 of the dishwashing cabinet 1 is opened from the front, and the inside is a washing room 12 and a stainless steel bowl rack 121 for holding tableware. A spoon 1215 is placed in the groove, and a small bowl and chopsticks are placed in the door 11 side. A silicon rubber sealing ring 123 is embedded in the inside of the door frame of the dishwashing cabinet. A glass tube 125 for observing the water level is arranged on the outer wall of one side of the handle 124 . The ozone generator 127 is positioned at the top of the washing chamber 12, and the bottom of the dishwashing cabinet 1 is an operation panel A1500 and a manual drain valve 156 handle.

There are three spray pipes 126 in the washing room 12. In order to exert the maximum effect of the pressure of the water pump 554 and reduce the cost and noise of the water pump 554, the three spray pipes 126 connected with the water outlet of the water pump do not discharge water at the same time, but are controlled by the controller. Open three sprinkler distribution electromagnetic valves 151, lead to different spray pipes 126 to spray when the water pump comes water.

See Figure 5 and Figure 6. The control room 550 of the dishwasher of the present invention is located at the bottom of the dishwashing cabinet 1, and contains a control circuit board 551, a water storage tank 552, a turbine 553, and the like. For the convenience of installation and control, the water pump 554 and other parts are located on the supporting steel frame 4 by controls, and are centrally controlled by the control room 550 .

The water storage tank 552 is located in the control room 550 and opens upward to the washing room 12 . The electric heating pipe A5528 is connected with the water storage tank 552 as a whole, and the electric heating pipe B5529 is installed in the water storage tank 552 . The tap water inlet solenoid valve 154 and the manual drain valve 156 are located at the side of the water storage tank 552 , and the water storage tank drainage solenoid valve 153 is located at the bottom of the water storage tank 552 .

Turbine 553 is made up of turbine base 5531, electric heating pipe 5532, blade wheel 5533, shroud 5534, turbine shaft 5535, sealing ring 5536, belt pulley A5537, B5538 and motor 5539, turbine base drain pipe 5531a. When the motor 5539 drives the vane wheel 5533 to rotate, the fluid enters the cavity of the turbine downward from the opening 553 a in the middle of the shroud 5534 . After the electric heating tube 5532 in the turbine frame 5531 is energized, heat is transferred to the fluid entering the cavity. Under the action of the centrifugal force generated by the rotation of the blade wheel 5533 on the fluid, the heated fluid presses against the plurality of narrow openings 5534a formed around the upper end of the shroud 5534 and the turbine base 5531 to form a high-speed fluid injection. If these fluids are water, they will have a scouring force on the tableware submerged in water; if these fluids are gases, the hot air flow will form a wind pressure to overflow the washing space in the dishwashing cabinet 1, so that the heating of the tableware is more uniform. After the fluid is injected around the guide cover 5534, the opening 553a in the middle of the guide cover forms a negative pressure, and the fluid in the washing chamber 12 enters the turbine 553 again from the opening 553a in the middle of the guide cover continuously, forming a circulation inside.

As shown in Figure 6. The control room 550 also has a blower 555, an exhaust solenoid valve 155, a spray distribution solenoid valve 151, and the like. In addition, the pipelines entering and exiting the dishwashing cabinet 1 are all drawn from the control room 550 . The four supporting feet 129 make the dishwashing cabinet 1 conducive to ventilation. The outer surfaces of the water storage tank 552 and the turbine 553 are covered with heat insulating materials.

See Figure 7, Figure 8. The second is the dish basin 2 . In the shape of a box with a lid, it is made of steel plate and covered with thermal insulation material. Wash basin 2 is mainly made up of basin body 21, loam cake 22. Basin body 21 is connected with loam cake 22 with hinge. There is an operation panel B2500 on the front of the upper cover 22 . Basin body 21 has two bi-directional water inlet and outlet ports A211 and B212, which are connected to wash basin water inlet solenoid valves A251, B252 and water outlet solenoid valves C253 and D254 through connecting hoses, and then the water pump 554 is used for two-way water flow in wash basin 2. Circulation; the water in the dishwashing cabinet 1 can also be introduced into the basin body 21 through the water pump 554, the connecting pipe and the water inlet solenoid valve A251 or B252 of the dish basin 2. There is a detergent tank 23 below the basin body 21 , and the detergent pump 231 can inject the detergent liquid into the dish basin 2 through the injection port 213 . The air inlet 26 on the outer side of the basin body 21 is used to introduce the steam generated when the dishwashing cabinet 1 dries and the water discharged by the manual drain valve 156 of the dishwashing cabinet during an accidental power failure. The steam passes through the pipeline 104a coiled at the lower part of the washbasin 2 for heat exchange, and then is introduced into the main drain pipe 105 from the outlet through the connecting pipe and discharged. Basin body 21 front bottoms have washbasin 2 manual drain valves 255, and its connection hose can drain water into other artificial preset containers. Basin body 21 bottom also has drainage solenoid valve 257 and supporting electric tractor, and is connected with main drainpipe 105, finishes the function of draining into sewer. Residue processing after dishwashing, the position that residue occurs is at the bottom drain hole 214 of dishwashing basin 2, and it can be manually removed after manual dishwashing and water is drained very easily.

See Figure 7, Figure 8. Its three is clear water tank 3. Clean water tank 3 is made of plastics, and what is matched with it also has water receiving box 31, is used for storing the water of cleaning water tank. A water inlet 311 is arranged in the clean water tank 3, and water pump 554 outlet water is imported into clean water tank 3 by connecting pipe, clean water tank water inlet electromagnetic valve 353. There is a water outlet 312 below the rear part of the clean water tank, which links to each other with the water outlet electromagnetic valve 354 of the clean water tank, and links to each other with the water inlet of the water pump 554 by a connecting pipe. A cock 313 and a drain 314 are arranged at the inner bottom of the clean water tank 3, so that the water in the clean water tank 3 can be discharged into the water receiving box 31. The clean water tank loam cake 315 can be opened when manually cleaning the clean water tank.

See Figure 7, Figure 8. Its fourth is the support steel frame 4. The supporting steel frame is divided into three layers. The upper layer 41 is used to place the wash basin 2 and fix the drain solenoid valve 257 of the wash basin; Cleansing essence tank 23, detergent pump 231, bottom 43 put clean water tank 3, water pump 554 and various solenoid valves, such as circulating water inlet solenoid valve 351, circulating water outlet solenoid valve 352, clean water tank inlet solenoid valve 353, clean water Box water outlet solenoid valve 354, water supply solenoid valve 355 outside the clear water tank, drainage solenoid valve 356 etc.

See Figure 2, Figure 3, Figure 6. The following description relates to the safety mechanism of the dishwasher of the present invention. As shown in the figure, the door lock electromagnet 571 will be energized when the dishwashing cabinet 1 of the dishwasher of the present invention is in normal operation, and the door lock electromagnet armature 571a enters a recess at the bottom of the dishwashing cabinet door 11 to limit washing dishes. Cabinet door 11 is accidentally opened. Otherwise, if there is such an accident, it is likely to cause a large amount of high-temperature water to pour out from the dishwashing cabinet 1 of the dishwasher of the present invention.

Accidental power failure also can produce this danger to dishwasher of the present invention, for example water is not removed and cabinet door 11 needs to be opened again. Prevent this danger and can observe the water level glass pipe 125 of dishwashing cabinet side. Putting an end to this danger is realized by the safety precaution organization. It consists of a door lock electromagnet 571, a float liquid level sensor 572, a normally closed relay (not shown in the figure), a red indicator light, and a circuit composed of a battery 574. When there was an unexpected power failure and there was water in the washing chamber 12, the door lock electromagnet 571 action locked the dishwashing cabinet door 11 and could not be opened. At this time, the manual drain valve 156 must be opened to discharge the accumulated water through the exhaust pipe 104 through the heat exchange pipe 104a on the outside of the washbasin 2 to the main drain pipe 105, and finally enter the sewer.

The principle of the safety protection mechanism is that when there is water in the washing chamber 12, the reed switch in the float type liquid level sensor 572 is connected to the circuit of the safety protection mechanism, and the battery 574 supplies power through the normally closed relay contact, so that the coil of the door lock electromagnet 571 Power-on suction, the armature 571a locks the dishwashing cabinet door 11 upwards; the red indicator light is lighted, so when there is water in the washing chamber 12, the cabinet door 11 can not be opened despite an accidental power failure, ensuring safe use. Wherein the door lock electromagnet 571, the normally closed relay and the red indicator light are not only controlled by the safety protection mechanism, but also controlled by the dishwasher controller of the present invention, and will also play a role when there is electricity for normal operation. When the dishwasher of the present invention is in normal operation, the normally closed relay coil is energized to make the contacts disconnect and be in an open circuit state, so that the safety protection mechanism does not work, and the normal opening of the dishwashing cabinet door 11 will not be affected.

The following description relates to the sensors of the dish basin 2 , the dishwashing cabinet 1 , and the clean water tank 3 of the dishwasher of the present invention.

Most of the liquid level sensors used in the dishwasher of the present invention are heat conduction sensors, which can detect the water level where the probe is located, and monitor the normal and abnormal states of related devices through the water level, and can also measure the temperature of the place. , they must be used under the effective control of the main controller. For details of the sensor, see patent 200510034727.2.

The configuration and functions of the liquid level sensors of the washbasin 2 , the dishwashing cabinet 1 , and the fresh water tank 3 are described below.

See Fig. 7. 1. There are four water level probes in the washbasin 2, which are basin bottom probe 261, lower water level probe 262, upper water level probe 263, and super high level probe 264. Before pumping water into the washbasin 2, the probe 261 at the bottom of the basin must be detected to monitor whether there is water in the washbasin 2. If there is water, it should be discharged into the sewer to prevent the failure of manual drainage. The lower water level probe 262 can monitor the minimum normal water level of the wash basin 2, and is used to control the discharge of part of the low-temperature water before replenishing the water. In addition, when the water has been injected into the wash basin 2, the lower water level probe 262 can monitor the water level of the wash basin. Whether the water process is normal, whether there is water leakage, and whether the drain solenoid valve 257 is damaged, causing the water to leak out. The upper water level probe 263 is used to monitor the standard water level of the washbasin 2 . Super high probe 264 prevents water from overflowing.

See Fig. 2. 2. There are four water level probes in the dishwashing cabinet 1, which are the water level probe 161 of the water storage tank, the water level probe 162 under the dishwashing cabinet, the water line probe 163 and the super high level probe 164.

The water storage tank water level probe 161 can be used to judge whether there is water in the dishwashing cabinet 1. In the case of water ingress, it can be judged whether the water inflow system is normal. The method is: close the drain electromagnetic valve 153 of the water storage tank before entering the water, and stop the water intake after a few seconds of water intake. At this time, the water level should be several centimeters at the bottom of the water storage tank 553; If the water system is out of order, the water level probe 161 of the water storage tank with delayed detection can detect that there is no water in the water storage tank 552, and the control system will send out a failure alarm.

In the case of drainage, it can be judged whether the drainage system is normal. The method is: after the water is drained, the delayed detection of the water level probe 161 of the water storage tank can detect the anhydrous state in the water storage tank 552, otherwise the control system sends out a fault alarm.

The water level probe 162 under the dishwashing cabinet is used for the high-temperature washing period of the third step and the low-temperature washing period of the fourth step of the dishwashing process, as the basis for starting the turbine 553 and starting the electric heating pipe. The probe is also used to measure the water temperature during the high-temperature washing period of the third step of the process and the low-temperature washing period of the fourth step of the process.

The waterline probe 163 is a control probe for the maximum water consumption of the cupboard 1 during normal dishwashing. It is used for the third step high-temperature washing period and the fourth step low-temperature washing period of the process.

The super high level probe 164 is used to prevent the situation that the water level is too high due to the loss of control of the water intake system. During the drying period, it is used to monitor the temperature of the upper part of the washing room as the control information of the drying state.

See Fig. 7. 3. There are two water level probes in the fresh water tank 3, which are super high level probe 362 and lower water level probe 361 respectively. When the water pump 554 draws water through the water outlet electromagnetic valve 354 of the clean water tank, the lower water level probe 361 can monitor the situation that the water is exhausted; Clean water tank 3 and other abnormal states.

See Fig. 2. 4. The liquid level sensor used in the safety circuit is a float type liquid level sensor 572 in the dishwashing cabinet 1. This is a liquid level sensor that does not rely on a microcontroller. Safety precaution mechanism for the dishwasher of the present invention.

See Figure 5. 5. The sensors used in the dishwasher of the present invention are mainly heat conduction sensors for both liquid level and temperature. For the turbine base 5531 and the water storage tank 552 with electric heating tubes that need special protection, a temperature sensor is provided. A166, B167, prevent overheating and detect the failure of the electric heating tube.

Detailed ways

The dishwashing process of the dishwasher of the present invention is described below through an embodiment.

See Figure 4. Firstly, the operation panel is introduced. The dishwasher of the present invention has a dishwashing cabinet operation panel A and a dish basin operation panel B.

The operation panel A1500 is located under the dishwashing cabinet 1, and is equipped with a power switch 1501, a start button 1502, a dishwashing cabinet start button 1503, an appointment time adjustment button 1504, a dishwashing cabinet water level adjustment button 1505, and related indicator lights and time and temperature displays screen 1506 etc.

The operation panel B2500 is located at the front of the top cover 22 of the wash basin 2, and is provided with a dish washing button 2501, a drain button 2502, an external water supply button 2503, a wash basin water level adjustment button 2504, a wash basin washing state button 2505 and related indicator lights.

The dishwashing process is divided into two stages, a total of five steps. The first stage is manual dishwashing. First, the tableware soaked in the dish basin 2 is manually degreased and stained, and then the tableware is sorted into the dishwashing cabinet 1; the second stage is machine washing, which is divided into four periods. , in the dishwashing cabinet 1, the machine washing is combined with spraying and soaking to complete the cleaning, disinfection and drying work.

Step 1: Dishwashing Basin 2 The dishwashing period is the manual dishwashing stage. Open the wash basin loam cake 22, at this moment, the hot water when washing the dishes last time has been reserved in the wash basin, and a small amount of detergent has been injected. Soak the dishes in the dish basin until the dish basin is full of dishes. Close the top cover 22 of the wash basin, turn on the power, set the water level through the water level selection button 2504 of the control panel 2500 of the top cover of the wash basin, press the button 2501 for washing dishes, and automatically enter the "standard washing" program, and detect the inside of the wash basin 2 Water temperature, extract the water in the clear water tank 3 and enter in the dishwashing basin to supplement, make the water temperature control at about 40 ℃--45 ℃ and meet the water level requirement. Determine whether replenishment water is pumped into washbasin 2 after being heated by dishwashing cabinet 1 according to needs, replenishes dish soap while replenishing water. Then start the water pump 554, so that the water in the wash basin passes through the water outlet A211, the wash basin water outlet solenoid valve C253, the water pump 554, and then through the wash basin water inlet solenoid valve B252, enters from the wash basin water inlet B212, forming The water in the dish basin 2 circulates. Switching the wash basin water inlet solenoid valves A251, B252 and water outlet solenoid valves C253, D254 can reverse the water circulation in the wash basin and prevent food residues from entering the water circulation process. At that time, the original water outlet becomes the water inlet.

After soaking and washing with running dish soap solution, most stains on tableware can be removed. Created the conditions for easy dishwashing. Manual intervention in the dishwashing process at this time is due to the fact that a small number of tableware has not been fully washed in the weakly alkaline detergent solution due to the random stacking of tableware; It is small, and it is necessary to replenish the detergent manually; it is because some tableware is stained with insoluble stains, which must be removed by friction; and because in order to reduce the water consumption and power consumption of the subsequent machine washing process, it must be partially removed A layer of water film attached to the tableware is mainly composed of surfactants in the dish soap and stains. These works can be finished very easily by manually carrying out, tableware can be put in the dishwashing cabinet 1 subsequently.

As shown in FIG. 3 , the tableware washed by the dish basin 2 is sorted into the dish area 1211 , the large bowl 1212 , the small bowl area 1213 , the chopsticks area 1214 , and the spoon area 1215 in the dishwashing cabinet 1 .

As shown in Fig. 7 and Fig. 8, after the manual dishwashing is completed, before starting the machine washing of the dishwashing cabinet 1, the drain button 2502 of the control panel B2500 on the upper cover of the dishbasin 2 must be pressed, and the solenoid valve 257 and the The muddy water in the wash basin is discharged to the sewer by the connecting pipe, or the manual drain valve 255 of the wash basin is unscrewed and the muddy water is discharged into the pre-prepared container. Dispose of food scraps last. In addition, behind the washbasin 2, a water outlet 221 is provided for the user to extract the water from the clean water tank 3 for use, and this function can be realized by pressing the external water supply button 2503 on the operation panel B2500.

During the dishwashing period of the washbasin 2, before replenishing water, detect the lower water level probe 262, the upper water level probe 263 and the super high level probe 264 of the washbasin to ensure that there is enough water in the washbasin 2 and not exceed the upper limit.

Usually, the dishwashing basin 2 uses the water used for washing dishes last time, but when it is used for the first time or it has not been used for a long time, it can also be heated to 40°C by using the washing cupboard 1 to enter tap water through the operation panel B2500 to select "washing water" -- About 45 ℃, then by the water pump 554, pump into the wash basin 2 by the water storage tank drainage electromagnetic valve 153, the washing basin water inlet electromagnetic valve A251, B252 and the connecting pipe, then enter the water circulation washing. In addition, through the operation panel B2500's selection of "washing at will", heating and water addition can not be performed, and the water volume, water temperature and amount of detergent can be manually determined, and then enter the water cycle for washing.

The following steps are machine washing stages. It is divided into the pre-wash period of dishwashing cabinet 1, the high-temperature washing period of dishwashing cabinet 1, the low-temperature washing period of dishwashing cabinet 1, and the disinfection and drying period of dishwashing cabinet 1.

Step 2: Dishwashing cabinet 1 pre-wash period. After the large dish rack 1212, the small dish rack 1213, the chopstick box 1214, the spoon box 1215 and the dish rack 1211 of the dishware classification are put into the dishwashing cabinet respectively, power on is started, and the water level adjustment button 1505 of the dishwashing cabinet is pressed to select a predetermined water level. First detect the probe 261 at the bottom of the dishwashing basin, if the water has been drained, start the water pump 554, open the drain solenoid valve 356 and related solenoid valves, and discharge the turbid water accumulated in the connecting pipe when washing dishes last time to the sewer. Then, the water pump 554 pumps the clean water left in the clean water tank 3 into the nozzle pipe 126 in the dishwashing cabinet through the water outlet solenoid valve 354 of the clean water tank, the spray distribution solenoid valve 151 and the connecting water pipe, and the water passes through the nozzle pipe 126 Spray on the tableware, take away part of the detergent residue on the tableware and store it in the water storage tank 552 . The water consumption in the pre-wash period is about 6-10 liters, and the water intake can be controlled by the water level probe 162 under the dishwashing cabinet. After the water level reaches, start the spray water cycle, that is, open the water storage tank drainage electromagnetic valve 153, after the water flows out from the water storage tank 552, it will be pumped into the spray pipe 126 in the dishwashing cabinet by the water pump 554 through the connecting pipe and the spray distribution electromagnetic valve 151. Form a loop. The used water is discharged to the wash basin 2 by the water pump 554 through the water storage tank drainage solenoid valve 153, the wash basin water inlet solenoid valve A251 or B252 and the connecting pipe, and a part of the water is used for washing the wash basin 2, and then passes through the wash basin Drain solenoid valve 257 discharges to main drainpipe 105, enters sewer, then closes wash basin drain solenoid valve 257, remaining water stays in wash basin 2.

During the pre-washing period of the dishwashing cabinet 1, before the water enters the dish basin 2, the probe 261 at the bottom of the dish basin must be detected, so that the dish basin 2 is in an anhydrous state.

The third step: wash the dish cabinet 1 high-temperature washing period. The dishwasher of the present invention adopts the combined method of spraying and soaking. The immersion washing method must determine which tableware should be submerged, and the water level at which these tableware are submerged is the water line 120 . The setting of waterline 120 has guaranteed that this part of tableware is cleaned completely. The setting of the water line 120 is between about 18cm-20cm in the washing chamber 12, which adapts to the cleaning requirements of most various deep concave tableware and irregular tableware.

Plates are shallow concave tableware and can be fully cleaned by spraying. Therefore, the dish can be placed above the waterline 120.

The water line 120 distinguishes the tableware that is easy to wash and the tableware that is difficult to wash, and greatly reduces the water consumption and corresponding power consumption of the immersion washing method. The dishwasher of the present invention can achieve small volume and large capacity.

At the beginning of the high-temperature washing period, close the drain solenoid valve 153 at the bottom of the water storage tank, and start the water pump 554 again to pump the water in the clean water tank 3 into the dishwashing cabinet through the clean water tank outlet solenoid valve 354, the spray distribution solenoid valve 151 and the connecting water pipe. Spray pipe 126, water is sprayed on tableware by spray pipe 126, and gathers together in water storage tank 552. When the water level exceeds the lower water level probe 162 of the dishwashing cabinet, start the electric heating tube 5532 of the turbine base and the electric heating tube A5528 and B5529 in the water storage tank for heating, and start the turbine 553 to circulate the water in the dishwashing cabinet 1 and monitor the clean water tank at the same time Lower the water level probe 361, when the water in the clean water tank 3 is exhausted, close the clean water tank outlet solenoid valve 354 and the water pump 554, open the tap water inlet solenoid valve 154, and continue to enter the water line 120 of the dishwashing cabinet.

When the water level rises to the waterline 120 and all kinds of tableware below the waterline are submerged, the water inlet is closed, and the spray water cycle is started, that is, the water storage tank drain solenoid valve 153 is opened, so that the water flows out from the water storage tank 552, passes through the connecting pipe, the spray Shower distributing electromagnetic valve 151 and spray pipe 126 are pumped into dishwashing cabinet 1 by water pump 554, form circulation. The water is heated and continuously recycled until the water temperature reaches above 60°C--65°C, then each electric heating tube is turned off.

After several minutes of spraying and soaking, the spray distribution electromagnetic valve 151 is closed, and the used hot water is discharged to the washing machine by the water pump 554 through the water storage tank drainage electromagnetic valve 153, the washing basin water inlet electromagnetic valve A251 or B252 and the connecting pipe. The bowl 2 is reserved for washing dishes next time.

At the beginning of the high-temperature washing period, at first, whether there is water in the water storage tank 552 is detected by the water storage tank water level probe 161 to judge whether the water storage tank drainage electromagnetic valve 153 is working normally.

When water enters, detect the water level probe 162 of the dishwashing cabinet to determine when to start the electric heater and turbine 553; after entering the water, detect the water line probe 163 of the dishwashing cabinet to ensure that there is enough washing water; The ultra-high water level probe 164 monitors to prevent the water level from being abnormal.

At the end of the high-temperature washing period, before draining the water into the wash basin 2, firstly, by detecting the probe 261 at the bottom of the wash basin, it is confirmed that there is no water in the wash basin 2 . In the process of draining the water into the wash basin 2, it is confirmed whether the water in the wash basin reaches the preset water level by detecting the lower water level probe 262; Range out of control. After the water in the water storage tank 552 is drained, the water storage tank water level probe 161 must be detected to confirm that there is no water in the water storage tank 552 .

Temperature control of the washing process. The water level probe 162 under the dishwashing cabinet can be used for water temperature measurement during high-temperature washing periods.

Step 4: Dishwashing cabinet 1 low-temperature washing period. Start the tap water inlet solenoid valve 154, the water level in the dishwashing cabinet is consistent with the third step process, must reach the waterline 120 of the dishwashing cabinet, and the water temperature is controlled above 25°C for spraying and immersion washing. After washing, the warm water used is discharged to the clean water tank 3 by the water pump 554 through the clean water tank water inlet solenoid valve 353 and the connecting pipe for next time washing dishes. (This period is similar to the high-temperature washing period, and will not be described in detail).

Step 5: Disinfection and drying period of dishwashing cabinet 1. The dishwasher of the present invention adopts an ozone disinfection method. Ozone is produced by the ozone generator 127 of the dishwashing cabinet 1, and circulates in the dishwashing cabinet 1 through the blast of the turbine 553 to achieve the purpose of disinfection.

During the drying period, the ozone generator 127 is turned off, and the electric heating pipe 5532 of the turbine and the electric heating pipes A5528 and B5529 of the water storage tank are energized, and the hot air is circulated in the dishwashing cabinet 1 by the blowing of the turbine 553. A large amount of steam will be generated in the cupboard 1, and the blower 555 is intermittently started to extract the high-temperature steam from the exhaust port 130 through the exhaust pipe 104, the exhaust solenoid valve 155, and the heat exchange pipeline 104a outside the wash basin to the wash basin 2. The water inside is heated, and finally discharged into the main drain pipe 105. When the high-temperature steam passes through the washbasin 2, the water pump 554 is started intermittently to circulate the water in the washbasin and enhance the heat exchange effect of the heat exchange pipeline 104a. When the high-temperature steam temperature dropped to lower than the water temperature in the wash basin 2, the exhaust was stopped. During the exhaust process, the air intake pipe 128 in the dishwashing cabinet 1 will suck in fresh air from the outside. Finally, the effect of tableware drying and the purpose of eliminating ozone residues are achieved. At this point, the dishwashing process is over.

Before shutting down, start the water pump 554, open the drain solenoid valve 356 and related solenoid valves, and discharge the turbid water accumulated in the connecting pipe to the sewer.

The controller of the dishwasher of the present invention is composed of a control circuit based on a single-chip microcomputer, and each device is under orderly and effective control by running the program stored in the single-chip microcomputer, making the dishwasher of the present invention a good helper for users.

An embodiment of the present invention has been described above, but the present invention is not limited to the content of the above embodiment, and various changes can be made within the scope of the claims without departing from the spirit or scope of the present invention.

Claims (12)

1. A dishwasher, comprising a desktop dishwashing cabinet with an ozone disinfection and drying device, a dishwashing basin arranged on the stove outside the dishwashing cabinet, a clean water tank arranged under the dishwashing basin, and washing dishes The supporting steel frame of the basin and the clean water tank is characterized in that the dishwashing cabinet is placed on the countertop, the upper part of the washbasin protrudes from the countertop, and the rest of the clean water tank is supported by a steel frame and hidden under the countertop. connected by pipelines; The tap water inlet pipe of the dishwasher is introduced into the dishwashing cabinet from the back of the dishwashing cabinet; the circulating water pipe is led out from the back of the dishwashing cabinet, and passes through the stove from the back of the dish basin to connect to the dish basin, clean water tank, water pump, The main drainage pipe; the exhaust pipe leads from the back of the dishwashing cabinet, passes through the stove from the back of the dish basin, and coils around the lower part of the dish basin. After heat exchange through the exhaust pipe, the steam is introduced from the outlet through the connecting pipe It is discharged from the main drain pipe; the dishwasher constitutes a complete whole with a reasonable layout and easy installation. 2. The dishwasher according to claim 1, the lower layer of the washing area in the dishwashing cabinet is a dipping area for tableware, the upper layer is a spraying area for tableware, and the dipping area is specially used for washing large bowls, small Bowls, chopsticks, spoons, and spoons are placed in a tank (1215) at the lower part of the soaking area, and the spraying area is used for washing dishes. 3. The dishwasher according to claim 1, which reuses the used water, the hot water in the dish basin is the high-temperature hot water retained during the last washing, and the water in the clean water tank is the hot water from the last washing. The warm water retained in the bowl, the dishwasher can reuse the washing water three times, saving water to the greatest extent. 4. The dishwasher according to claim 1, wherein several nozzles are arranged in the dishwashing cabinet, water can be sprayed from the nozzles of the nozzles to the washing area under the action of the water pump, and the several Each nozzle is opened in time-sharing under the control of the corresponding spray distribution solenoid valve. 5. The dishwasher according to claim 1, wherein the dish basin has a top cover and a basin body of the dish basin, the top cover and the basin body are connected by hinges, and the interior of the dish basin is made of stainless steel, The whole body is wrapped with thermal insulation material, there are water inlet and outlet ports and detergent injection ports on the side of the basin body, and there are solenoid valve drainage outlets and manual valve drainage outlets at the bottom of the basin body; The exhaust pipe can be used to manually remove the accumulated water in the dishwashing cabinet during an unexpected power failure. 6. The dishwasher according to claim 1, wherein the clean water tank is located below the dish basin and is a plastic box with a cover and a drain, the upper part of the box has a water inlet, and the lower part of the box has a water outlet It is connected with the water pump, and the water outlet is connected with the water receiving box. 7. The dishwasher according to claim 1, wherein the installation position of the water pump is located on the supporting steel frame of the clean water tank, which is beneficial to pumping the water in the clean water tank. 8. The dishwasher according to claim 1, wherein a turbine for agitating water flow is provided in the dishwashing cabinet, and it comprises a turbine seat, a blade wheel, a shroud, a turbine shaft, a sealing ring, a pulley A, a pulley B and the drainage pipe of the turbine seat, the motor, and the electric heating pipe; Electric heating pipes and cooling fins are cast in the turbine base, and there is a drainage hole at the bottom of the turbine base, which is connected with the water storage tank, and the turbine shaft and the motor shaft are connected through a belt pulley. 9. The dishwasher according to claim 8, wherein the air guide cover of the turbine is circular, and there is a circle of openings connected to the turbine seat as a water outlet, so that the water flow and air flow can be ejected outwards, and the opening in the middle of the air guide cover is a circle. Shaped opening, straight to the center of the vane wheel, this circular opening is the fluid inlet; When the blade wheel of the turbine rotates, the fluid enters from the opening in the middle of the shroud, and is ejected from the water outlet around the shroud under the action of centrifugal force. 10. The dishwasher according to claim 1, said dishwashing cabinet is provided with a safety protection mechanism, which is used to prevent accidental opening of the dishwashing cabinet door, which includes a manual drain valve, an indicator light, and a buzzer , door lock electromagnet, float liquid level sensor, water level glass tube, battery and related circuits constitute a safety protection mechanism, which is independent of the dishwasher control system and is self-contained. 11. The dishwasher according to claim 10, the armature of the door lock electromagnet can be inserted into the concave position under the door of the dishwashing cabinet in a controlled manner to lock the cabinet door and prevent accidental opening of the door. 12. A dishwashing method for a household split dishwasher, the method adopts a split dishwasher structure, and uses a man-machine combined washing method, which is characterized in that the dishwashing process is divided into two stages, and the specific steps are as follows: The first stage is carried out in the washbasin. First, the tableware is soaked in the hot water of the washbasin at will, and the detergent is injected into it. Manually scrub the tableware one by one and put them into the designated position in the dishwashing cabinet; The second stage is machine washing, which is carried out in the dishwashing cabinet. The machine washing is combined with spraying, dipping, and circular cleaning to complete the cleaning, disinfection, and drying work.

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