Dish-washing machine control method and dish-washing machine

Abstract

The invention relates to a dishwasher control method and a dishwasher, and belongs to the field of household appliances. The dish washing machine control method comprises the steps that water is reserved in a water tank, the water reserved in the water tank flows into a water cup, and the water in the water cup is output to be used for washing tableware; in the cleaning process, the water inlet valve is opened to supply water to the water tank, heat exchange is conducted between water in the water tank and the inner container, the cleaned water is discharged after cleaning is completed, and the water subjected to heat exchange in the water tank is conveyed to the water cup for cleaning; after washing is completed, the water inlet valve is opened to supply water to the water tank, and water input into the water tank is reserved in the water tank. Water is reserved in the water tank and used for supplying water to the water cup to clean tableware, and therefore cyclic utilization of water resources is achieved. Water in the water tank exchanges heat with the inner container. Therefore, heat energy which is possibly wasted in the cleaning process originally is fully utilized.

Description

Technical Field

[0001] The present invention relates to the field of household appliances, and in particular to a dishwasher control method and a dishwasher. Background Art

[0002] In modern life, dishwashers, as an efficient and convenient kitchen appliance, have greatly reduced people's housework burden. Its working principle is to use high-pressure water spray to rinse the tableware in all directions to achieve the purpose of cleaning. In this process, using hot water for cleaning has been proven to significantly improve the cleaning effect, because hot water can more effectively dissolve oil stains, accelerate chemical reactions, and make stubborn stains easier to remove.

[0003] However, there is a prominent problem in the hot water cleaning process of current dishwashers, that is, heat easily escapes. The cavity of the dishwasher is not completely sealed. During the cleaning process, heat will be dissipated to the surrounding environment through the door gap, shell and drainage pipes of the machine. This heat dissipation leads to a lot of energy waste. In order to maintain the water temperature required for cleaning, the dishwasher needs to continuously consume additional electricity to heat the cold water, which undoubtedly increases the household's electricity costs. Summary of the invention

[0004] Based on this, it is necessary to provide a dishwasher control method and a dishwasher to address the problem of high energy consumption of dishwashers.

[0005] A dishwasher control method, comprising:

[0006] S1. Reserving water in a water tank, flowing the reserved water in the water tank into a water cup, and outputting the water in the water cup for washing dishes;

[0007] S2. During the cleaning process, the water inlet valve is opened to supply water to the water tank, and the water in the water tank is heat exchanged with the inner tank. After the cleaning is completed, the cleaned water is discharged, and the water in the water tank that has undergone heat exchange is transported to the water cup for cleaning;

[0008] S3. After washing is completed, the water inlet valve is opened to supply water to the water tank, and the water input into the water tank is reserved in the water tank.

[0009] The dishwasher control method disclosed in this application realizes the recycling of water resources during the entire washing process by reserving water in the water tank and using it for supplying water to the water cup to wash tableware. Compared with directly introducing brand-new water from the outside every time for cleaning, this method can make the introduced water have the same temperature as the room temperature during storage, avoiding the need to consume a large amount of energy to heat the water with a low temperature directly introduced from the outside during use. During the cleaning process, the water in the water tank exchanges heat with the inner tank, enabling the full utilization of the heat energy that might otherwise be wasted during the cleaning process. On the one hand, the water after heat exchange has a more suitable temperature for subsequent cleaning, which helps to improve the cleaning effect. For some stubborn stains, water at a suitable temperature is more likely to dissolve and wash them away. On the other hand, transporting the water that has exchanged heat in the water tank to the water cup for cleaning reduces the energy required to reheat cold water, greatly reducing energy consumption and also reducing the user's usage cost. The entire control method reasonably plans the water flow and functions at different stages. Reserving water before cleaning ensures that there is available water at the beginning of washing, reducing the waiting time for water inlet and improving the washing efficiency. At the same time, it can reduce energy consumption in the case where the indoor temperature is higher than the outdoor temperature. Opening the water inlet valve to supply water to the water tank during the cleaning process maintains the water level in the water tank and ensures the continuity of the cleaning process. After cleaning is completed, the used water is drained, and the water that has exchanged heat in the water tank is used for subsequent cleaning. Additionally, after the washing is completed, the water tank is supplied with water again and reserved, forming a complete and orderly cycle. This optimized washing process makes the operation of the dishwasher more stable and efficient, reduces unnecessary operation steps, and extends the service life of the dishwasher.

[0010] In one of the embodiments, the specific steps of opening the water inlet valve to supply water to the water tank during the cleaning process, exchanging heat between the water in the water tank and the inner tank, draining the used water after cleaning is completed, and transporting the water that has exchanged heat in the water tank to the water cup for cleaning are as follows:

[0011] S21. During the cleaning process, open the water inlet valve, input the water volume of the first preset threshold into the water tank to supply water to the water tank, and exchange heat between the water in the water tank and the inner tank;

[0012] S22. Detect the parameters of the water in the dishwasher. When the parameters of the water in the dishwasher are lower than the first set threshold, perform cyclic cleaning. When the parameters of the water in the dishwasher are higher than the first set threshold, drain the used water;

[0013] S23. After draining the used water, transport the water that has exchanged heat in the water tank to the water cup. The water in the water cup is transported to the spray arm, and the tableware in the inner tank is cleaned by the spray arm for the first set time.

[0014] During the cleaning process, the water inlet valve is opened and the water volume according to the first preset threshold is input into the water tank, so as to achieve accurate water supply. This setting avoids the waste of water resources caused by excessive water supply, and also prevents the influence of insufficient water supply on the cleaning effect. By detecting the parameters of the water in the dishwasher (such as turbidity, pH, etc.) and comparing them with the first set threshold, intelligent cleaning process control is achieved. When the water parameters are lower than the first set threshold, it means that the cleanliness of the water and other indicators still meet the cleaning requirements. At this time, the circulation cleaning is carried out, which makes full use of water resources and avoids the waste caused by frequent drainage and water change. On the contrary, when the water parameters are higher than the first set threshold, it means that the water can no longer effectively clean the tableware. The cleaned water is discharged in time to ensure the quality of subsequent cleaning. Heat exchanging the water in the water tank with the inner tank is an efficient use of heat energy. During the cleaning process, the water temperature after heat exchange is more suitable for cleaning the tableware, and there is no need to consume a lot of energy to heat the cold water. The water in the water tank that has undergone heat exchange is transported to the water cup, and then the water cup transports the water to the spray arm to clean the tableware for the first set time, which helps to improve the cleaning effect. The water temperature after heat exchange is suitable, which can better dissolve oil and other stains. Precise water supply and intelligently controlled cleaning process reduce unnecessary wear and tear on the internal parts of the dishwasher.

[0015] In one embodiment, the specific steps of inputting the water volume of the first preset threshold into the water tank to supply water to the water tank are as follows:

[0016] Open the water inlet valve to let water into the respirator, and measure the amount of water flowing out of the respirator with a flow meter;

[0017] The flow channel is switched by a valve body assembly, and the valve body assembly is provided with a first channel, a second channel and a third channel. The first channel is connected to the respirator, the second channel is connected to the water tank, and the third channel is connected to the water cup. The first channel is connected to the second channel and the third channel is blocked by the valve body assembly, so that water flowing out of the respirator supplies water to the water tank, and the water inlet valve is closed when the amount of water flowing out of the respirator reaches a first flow threshold.

[0018] By measuring the amount of water flowing out of the respirator with a flow meter, the accurate monitoring of the water inlet process is achieved. This enables the dishwasher to precisely control the amount of water entering the water tank, ensuring that the water volume in the water tank is just right. The ingenious design of the valve body assembly and the flow channel switching function play a key role. The valve body assembly is provided with a first channel, a second channel, and a third channel. During the water inlet stage, the first channel is connected to the second channel and the third channel is blocked, so that the water can flow orderly from the respirator to the water tank to supply water to the water tank. This precise flow channel switching mechanism avoids water flow chaos and leakage, ensuring the efficiency and stability of the water inlet process. Precise water volume control and orderly flow channel switching play a good protective role for the internal equipment of the dishwasher. It avoids the impact and damage to the water tank, valve body assembly, and other related components caused by excessive water volume or water flow disorder. When the water volume in the water tank is precisely controlled within an appropriate range, it reduces the overflow when the water volume is excessive and avoids the waste of water resources.

[0019] In one embodiment, the specific steps of delivering the water that has undergone heat exchange in the water tank to the water cup are as follows:

[0020] The first channel, the second channel, and the third channel are all connected through the valve body assembly, so that the water in the water tank is delivered into the water cup.

[0021] When the valve body assembly connects the first channel, the second channel, and the third channel, the water in the water tank can be quickly and directly delivered into the water cup. This efficient water supply method greatly shortens the water supply time and improves the overall operating efficiency of the dishwasher.

[0022] In one embodiment, after the step of closing the water inlet valve when the amount of water flowing out of the respirator reaches the first flow threshold, the following steps are further included:

[0023] The pump body is turned on, and the water in the water tank is delivered to the pipe surrounding the inner tank through the pump body. The water entering the pipe exchanges heat with the inner tank and then re-enters the water tank;

[0024] Monitor the temperature of the water in the water tank. When the water temperature in the water tank is lower than the preset temperature, keep the pump body working. At the same time, monitor the rate of change of the water temperature in the water tank. When the rate of change of the water temperature is lower than the preset rate, increase the pumping efficiency of the pump body. When the rate of change of the water temperature is higher than the preset rate, decrease the pumping efficiency of the pump body;

[0025] When the water temperature in the water tank is higher than or equal to the preset temperature, the pump body stops working.

[0026] The water in the water tank is pumped through the pump body to the pipeline surrounding the inner tank, and after heat exchange between the water and the inner tank, it flows back to the water tank. This circulation method can make full use of energy. The continuous water circulation allows the heat of the inner tank to be fully absorbed by the water, avoiding heat waste. Compared with single heat exchange, it greatly improves the energy utilization rate and reduces the overall energy consumption. The temperature of the water in the water tank is monitored in real time, and the operation of the pump body is controlled according to the relationship between the water temperature and the preset temperature. When the water temperature is lower than the preset temperature, the pump body keeps working to ensure that the water continuously undergoes heat exchange and warms up; when the water temperature is higher than or equal to the preset temperature, the pump body stops working to prevent the water temperature from being too high. This precise temperature control mechanism enables the water temperature in the water tank to be stably maintained within the preset range. The change rate of the water temperature in the water tank is monitored, and the pumping efficiency of the pump body is adjusted accordingly. When the change rate of the temperature is lower than the preset rate, the pumping efficiency is increased to accelerate the heat exchange process and enable the water temperature to reach the preset value faster; when the change rate of the temperature is higher than the preset rate, the pumping efficiency is decreased to avoid energy waste and excessive operation of the equipment caused by excessive heat exchange. By dynamically adjusting the pumping efficiency in this way, on the one hand, the heat exchange efficiency is improved, and on the other hand, the unnecessary high-speed operation of the pump body is reduced, the equipment wear is decreased, the service life of the pump body and the entire system is extended, and the equipment maintenance and replacement costs are reduced.

[0027] In one embodiment, the specific steps for reserving water in the water tank and flowing the reserved water in the water tank into the water cup are as follows:

[0028] Open the inlet valve to let water enter the breather, and measure the amount of water flowing out of the breather through the flowmeter;

[0029] Perform flow path switching through the valve body assembly. The valve body assembly is provided with a first channel, a second channel and a third channel. The first channel is communicated with the breather, the second channel is communicated with the water tank, and the third channel is communicated with the water cup. By the valve body assembly, the first channel and the second channel are communicated and the third channel is blocked, so that the water flowing out of the breather supplies water to the water tank. When the amount of water flowing out of the breather reaches the first flow threshold, close the inlet valve;

[0030] The dishwasher stops working, and the water input into the water tank is reserved in the water tank;

[0031] When the dishwasher is restarted to work again, the first channel, the second channel and the third channel are all communicated through the valve body assembly, so that the water reserved in the water tank is conveyed into the water cup.

[0032] Open the water inlet valve to let water enter the breather, and measure the amount of water flowing out of the breather with a flow meter, achieving precise control of the water inlet process. During the stage of supplying water to the water tank, the first channel is connected to the second channel and the third channel is blocked through the valve body assembly, enabling the water to flow precisely towards the water tank. When the amount of water flowing out of the breather reaches the first flow threshold, close the water inlet valve to ensure that the water tank obtains an appropriate amount of water. When the dishwasher stops working, the water input into the water tank remains in the water tank. When starting again, this pre-stored water can be directly transported to the water cup for cleaning through the valve body assembly connecting the three channels. Compared with injecting cold water and heating it every time it starts, using the pre-stored water reduces the energy consumption required for heating cold water. Using the water remaining in the water tank for subsequent cleaning avoids introducing entirely new water from the outside every time, thus reducing the overall water consumption.

[0033] In one embodiment, after the step of opening the water inlet valve to let water enter the breather and measuring the amount of water flowing out of the breather with a flow meter, the following steps are further included:

[0034] Soften the water flowing out of the breather through a water softener.

[0035] Softening the water flowing out of the breather through a water softener can significantly reduce the content of calcium, magnesium and other ions in the water. This greatly reduces the formation of scale when the subsequent water flows through various components of the dishwasher, such as heating elements, pipes, spray arms, etc. The reduction of scale can ensure that these key components maintain good working conditions and avoid affecting the equipment performance due to scale accumulation.

[0036] In one embodiment, the specific steps of connecting the first channel, the second channel and the third channel through the valve body assembly to transport the water in the water tank to the water cup include:

[0037] Connect the first channel, the second channel and the third channel through the valve body assembly;

[0038] Determine the completion of adding water from the water tank to the water cup by judging the remaining amount of the water tank through the connection time of the first channel, the second channel and the third channel opened by the valve body assembly or a sensor.

[0039] By determining the connection time of the first channel, the second channel, and the third channel through the valve body assembly to complete water addition, extremely precise water volume control can be achieved. By controlling the connection time or using a sensor to judge the remaining amount of water in the water tank to determine the completion of water addition, the accuracy and intelligence level of water addition are further improved. The sensor can monitor the change in the water volume in the water tank in real time. When it detects that the remaining amount of water in the water tank reaches the set water addition termination condition, it timely controls the valve body assembly to stop water addition. This flexible and precise water addition control method greatly improves the user experience. Users no longer need to manually estimate or adjust the water addition volume. Just start the dishwasher, and the device can automatically complete the water addition operation according to the preset connection time or the sensor feedback.

[0040] In one embodiment, the specific steps of opening the inlet valve to supply water to the water tank and reserving the water input into the water tank after the washing is completed are as follows:

[0041] After the washing is completed, open the inlet valve to let water enter the breather, and measure the water volume flowing out of the breather through a flow meter;

[0042] Perform a flow path switching through the valve body assembly. The valve body assembly is provided with a first channel, a second channel, and a third channel. The first channel is connected to the breather, the second channel is connected to the water tank, and the third channel is connected to a water cup. Connect the first channel and the second channel through the valve body assembly and block the third channel;

[0043] Close the inlet valve when the water volume flowing out of the breather reaches the first flow threshold.

[0044] By opening the inlet valve to let water enter the breather after the washing is completed and accurately measuring the water volume flowing out of the breather using a flow meter, this measure ensures that the water volume entering the water tank can be precisely controlled. In terms of flow path switching, by connecting the first channel and the second channel through the valve body assembly and blocking the third channel, the water flow can accurately flow to the water tank. When the water volume flowing out of the breather reaches the first flow threshold, closing the inlet valve can make the water volume stored in the water tank just right. Precise water inlet control plays a good role in protecting the internal equipment of the dishwasher. It avoids waste caused by excessive water inlet. Stable and appropriate water storage in the water tank provides a guarantee for improving the consistency of the cleaning effect. Before each washing, there is a precise amount of water in the water tank, which can ensure that during the cleaning process, whether it is the pre-rinsing in the early stage or the formal cleaning stage, a stable water pressure and water flow can be provided. The stable water pressure enables the spray arm to spray water with a constant force and angle, comprehensively and evenly flushing the tableware.

[0045] A second aspect of the present application discloses a dishwasher, comprising: a breather; a water softener, the water softener being communicated with the liquid outlet end of the breather; an inner tank, the inner tank being provided with a cleaning cavity, the inner tank being fixedly connected with the water softener; a water cup, the water cup being arranged on the inner tank and located on the bottom wall of the inner tank; a water tank, the water tank being arranged on the inner tank and located on the top wall of the inner tank, the water tank being in contact with the inner tank and capable of exchanging heat with the inner tank; a valve body assembly, the valve body assembly being respectively communicated with the water softener, the water cup and the water tank; a control assembly, the control assembly being electrically connected with the valve body assembly for executing the above-mentioned dishwasher control method.

[0046] In the dishwasher disclosed in the present application, the breather is communicated with the water softener, and the water flowing out of the breather is first softened by the water softener. This design can significantly reduce the content of calcium, magnesium and other ions in the water and reduce the formation of water scale. During the cleaning process, the softened water can more effectively dissolve oil stains and dirt, improve the cleaning effect of tableware, and at the same time prevent water scale from accumulating on the surfaces of key components such as heating elements and pipelines, protect the key components of the equipment, and extend the service life of the equipment. The water tank is arranged on the top wall of the inner tank and is in contact with it, and can exchange heat with the inner tank. The heat of the inner tank is used to heat the water tank, reducing the heating time and loss during subsequent use. The valve body assembly is respectively communicated with the water softener, the water cup and the water tank, and the control assembly is electrically connected with the valve body assembly to execute a specific control method. This enables the dishwasher to accurately control the water flow path and flow rate according to the requirements of different cleaning stages. In the processes of water inlet, cleaning, rinsing, etc., through the flow channel switching of the valve body assembly, it is ensured that the water cup and the water tank obtain appropriate amounts of water, avoiding waste of water resources and ensuring the cleaning effect at the same time. The water cup is arranged on the bottom wall of the inner tank, and the water tank is arranged on the top wall of the inner tank. This layout makes full use of the space of the inner tank, making each component compact and orderly. At the same time, it is convenient for the water flow to circulate among the components, realizing efficient cleaning, heat exchange and other functions, and improving the overall performance of the dishwasher.

[0047] In one embodiment, the water tank includes a water tank body, an overflow pipe and a locking member. The water tank body is provided with a receiving cavity. The overflow pipe is arranged on the water tank body and located in the receiving cavity. The inner tank is provided with an overflow hole. A part of the locking member passes through the overflow hole and is connected to the pipe wall of the overflow pipe. A liquid passing notch is provided on the part of the locking member located inside the inner tank. The receiving cavity, the overflow pipe, the overflow hole and the liquid passing notch are sequentially communicated. Through the synergistic effect of the overflow pipe, the overflow hole and the locking member, the phenomenon of water overflow from the water tank body when the water level is too high is effectively prevented. When the water level in the receiving cavity rises to a certain level, the water will flow into the overflow pipe and be discharged into the inner tank through the overflow hole and the liquid passing notch, avoiding water overflowing from the water tank body, thereby preventing water from leaking to other components of the dishwasher, protecting the equipment from water damage, and ensuring the safe and stable operation of the equipment. Description of the Drawings

[0048] Figure 1 It is a flowchart of the dishwasher control method;

[0049] Figure 2 It is a flowchart for supplying water to the water tank by opening the water inlet valve during the cleaning process, exchanging heat between the water in the water tank and the inner tank, draining the water after cleaning, and transporting the water for heat exchange in the water tank to the water cup for cleaning;

[0050] Figure 3 It is a schematic diagram of the dishwasher;

[0051] Figure 4 It is a three-dimensional view of part of the structure of the dishwasher;

[0052] Figure 5 It is a sectional view of the water tank;

[0053] Figure 6 It is Figure 5 An enlarged view of area A of

[0054] Among them, the corresponding relationship between the reference numerals and the component names is as follows:

[0055] 1 Breathing device;

[0056] 2 Water softener;

[0057] 3 Inner tank;

[0058] 4 Water cup;

[0059] 5 Water tank, 51 Water tank body, 52 Overflow pipe, 53 Locking member, 501 Accommodation cavity, 5301 Liquid passing notch; 6 Valve body assembly. Specific embodiments

[0060] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the drawings and specific embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0061] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0062] The following describes some embodiments of the dishwasher control method and the dishwasher of the present invention with reference to the drawings.

[0063] Embodiment 1

[0064] As Figure 1 shown, this embodiment discloses a dishwasher control method, including:

[0065] S1. Reserve water in the water tank, let the reserved water in the water tank flow into the water cup, and output the water in the water cup for washing tableware.

[0066] S2. During the cleaning process, open the water inlet valve to supply water to the water tank. The water in the water tank exchanges heat with the inner tank. After the cleaning is completed, drain the washed water, and deliver the water that has exchanged heat in the water tank to the water cup for washing.

[0067] S3. After the washing is completed, open the water inlet valve to supply water to the water tank, and reserve the water input into the water tank in the water tank.

[0068] The dishwasher control method disclosed in this application realizes the recycling of water resources throughout the washing process by reserving water in the water tank and using it to supply water to the water cup for washing tableware. Compared with directly introducing completely new water from the outside every time for cleaning, this method can make the introduced water have the same temperature as the room temperature during storage, avoiding the need to consume more energy for heating the water with a lower temperature directly introduced from the outside during use. During the cleaning process, the water in the water tank exchanges heat with the inner tank, enabling the full utilization of the heat energy that might otherwise be wasted during the cleaning process. On the one hand, the water after heat exchange has a more suitable temperature for subsequent cleaning, which helps to improve the cleaning effect. For some stubborn stains, water at a suitable temperature is more likely to dissolve and wash them away. On the other hand, delivering the water that has exchanged heat in the water tank to the water cup for washing reduces the energy required to heat cold water again, greatly reducing energy consumption and also reducing the user's cost of use. The entire control method reasonably plans the water flow and functions at different stages. Reserving water before cleaning ensures that there is available water at the beginning of washing, reduces the waiting time for water inlet, improves the washing efficiency, and can reduce energy consumption in the case where the indoor temperature is higher than the outdoor temperature. Opening the water inlet valve to supply water to the water tank during the cleaning process maintains the water level in the water tank and ensures the continuity of the cleaning process. After the cleaning is completed, drain the washed water, and use the water after heat exchange for subsequent cleaning, and supply water to the water tank again and reserve it after the washing is completed, forming a complete and orderly cycle. This optimized washing process makes the operation of the dishwasher more stable and efficient, reduces unnecessary operation links, and extends the service life of the dishwasher.

[0069] As Figure 2 shown, in addition to the features of the above embodiments, this embodiment further defines that the specific steps of opening the water inlet valve to supply water to the water tank during the cleaning process, the water in the water tank exchanging heat with the inner tank, draining the washed water after the cleaning is completed, and delivering the water that has exchanged heat in the water tank to the water cup for washing are as follows:

[0070] S21. During the cleaning process, open the water inlet valve, input water with a first preset threshold amount into the water tank to supply water to the water tank, and exchange heat between the water in the water tank and the inner tank.

[0071] S22. Detect the parameters of the water in the dishwasher. When the parameters of the water in the dishwasher are lower than the first set threshold, perform cyclic cleaning. When the parameters of the water in the dishwasher are higher than the first set threshold, drain the water after cleaning.

[0072] S23. After draining the water after cleaning, convey the water that has undergone heat exchange in the water tank to the water cup, convey the water in the water cup to the spray arm, and clean the tableware in the inner container with the spray arm for a first set time.

[0073] During the cleaning process, by opening the water inlet valve and inputting water into the water tank according to the water volume of the first preset threshold, accurate water supply is achieved. This setting avoids the waste of water resources caused by excessive water supply, and at the same time prevents insufficient water supply from affecting the cleaning effect. By detecting the parameters of the water in the dishwasher (such as turbidity, pH value, etc.) and comparing them with the first set threshold, an intelligent cleaning process control is realized. When the parameters of the water are lower than the first set threshold, it indicates that the cleanliness and other indicators of the water still meet the cleaning requirements. At this time, cyclic cleaning is performed, making full use of water resources and avoiding the waste caused by frequent draining and water changing. On the contrary, when the parameters of the water are higher than the first set threshold, it indicates that the water can no longer effectively clean the tableware, and the water after cleaning is drained in time to ensure the quality of subsequent cleaning. Exchanging heat between the water in the water tank and the inner container is an efficient utilization of heat energy. During the cleaning process, the water after heat exchange has a more suitable temperature for cleaning tableware, without the need to consume a large amount of additional energy to heat cold water. Conveying the water that has undergone heat exchange in the water tank to the water cup, and then conveying the water from the water cup to the spray arm to clean the tableware for a first set time helps to improve the cleaning effect. The water after heat exchange has a suitable temperature and can better dissolve oil stains and other stains. The accurate water supply and the intelligent control of the cleaning process reduce the unnecessary wear of the internal components of the dishwasher.

[0074] In addition to the features of the above embodiments, this embodiment further defines the specific steps of supplying water to the water tank by inputting the water volume of the first preset threshold as follows:

[0075] Open the water inlet valve to let water into the breather, and measure the water volume flowing out of the breather through a flow meter.

[0076] Perform flow path switching through the valve body assembly. The valve body assembly is provided with a first channel, a second channel, and a third channel. The first channel is communicated with the breather, the second channel is communicated with the water tank, and the third channel is communicated with the water cup. Connect the first channel and the second channel through the valve body assembly and block the third channel, so that the water flowing out of the breather supplies water to the water tank, and close the water inlet valve when the water volume flowing out of the breather reaches the first flow threshold.

[0077] By measuring the amount of water flowing out of the respirator with a flow meter, the accurate monitoring of the water inlet process is achieved. This enables the dishwasher to precisely control the amount of water entering the water tank, ensuring that the water volume in the water tank is just right. The ingenious design of the valve body assembly and the flow channel switching function play a key role. The valve body assembly is provided with a first channel, a second channel, and a third channel. During the water inlet stage, the first channel is connected to the second channel and the third channel is blocked, so that the water can flow orderly from the respirator to the water tank to supply water to the water tank. This accurate flow channel switching mechanism avoids the chaos and leakage of water flow, ensuring the efficiency and stability of the water inlet process. The accurate water volume control and orderly flow channel switching play a good protective role for the internal equipment of the dishwasher. It avoids the impact and damage to the water tank, valve body assembly, and other related components caused by excessive water volume or disordered water flow. When the water volume in the water tank is accurately controlled within an appropriate range, the overflow when the water volume is excessive is reduced, avoiding the waste of water resources.

[0078] In addition to the features of the above embodiments, this embodiment further defines the following specific steps for delivering the water that has undergone heat exchange in the water tank to the water cup:

[0079] The first channel, the second channel, and the third channel are all connected through the valve body assembly, so that the water in the water tank is delivered into the water cup.

[0080] When the valve body assembly connects the first channel, the second channel, and the third channel, the water in the water tank can be quickly and directly delivered into the water cup. This efficient water supply method greatly shortens the water supply time and improves the overall operating efficiency of the dishwasher.

[0081] In addition to the features of the above embodiments, this embodiment further defines that after the step of closing the water inlet valve when the amount of water flowing out of the respirator reaches the first flow threshold, the following steps are further included:

[0082] Start the pump body, and deliver the water in the water tank to the pipeline surrounding the inner tank through the pump body. The water entering the pipeline exchanges heat with the inner tank and then enters the water tank again;

[0083] Monitor the temperature of the water in the water tank. When the water temperature in the water tank is lower than the preset temperature, keep the pump body working continuously. At the same time, monitor the rate of change of the water temperature in the water tank. When the rate of change of the water temperature is lower than the preset rate, increase the pumping efficiency of the pump body. When the rate of change of the water temperature is higher than the preset rate, reduce the pumping efficiency of the pump body;

[0084] When the water temperature in the water tank is higher than or equal to the preset temperature, stop the pump body.

[0085] Water in the water tank is transported to the pipe surrounding the inner tank through a pump body. After heat exchange between the water and the inner tank, the water then flows back to the water tank. This circulation method can make full use of energy. The continuous water circulation allows the heat of the inner tank to be fully absorbed by the water, avoiding heat waste. Compared with single heat exchange, it greatly improves the energy utilization rate and reduces the overall energy consumption. The temperature of the water in the water tank is monitored in real time, and the operation of the pump body is controlled based on the relationship between the water temperature and the preset temperature. When the water temperature is lower than the preset temperature, the pump body keeps working to ensure that the water continuously undergoes heat exchange and warms up. When the water temperature is higher than or equal to the preset temperature, the pump body stops working to prevent the water temperature from being too high. This precise temperature control mechanism enables the water temperature in the water tank to be stably maintained within the preset range. The change rate of the water temperature in the water tank is monitored, and the pumping efficiency of the pump body is adjusted accordingly. When the change rate of the temperature is lower than the preset rate, the pumping efficiency is increased to accelerate the heat exchange process and enable the water temperature to reach the preset value faster. When the change rate of the temperature is higher than the preset rate, the pumping efficiency is decreased to avoid energy waste and excessive operation of the equipment caused by overheat exchange. By dynamically adjusting the pumping efficiency in this way, on the one hand, the heat exchange efficiency is improved, and on the other hand, unnecessary high-speed operation of the pump body is reduced, the equipment wear is decreased, the service life of the pump body and the entire system is extended, and the equipment maintenance and replacement costs are reduced.

[0086] In addition to the features of the above embodiments, this embodiment further defines: Reserve water in the water tank, and the specific steps for the reserved water in the water tank to flow into the water cup are as follows:

[0087] Open the inlet valve to let water into the breather, and measure the amount of water flowing out of the breather through a flow meter;

[0088] Perform flow path switching through the valve body assembly. The valve body assembly is provided with a first channel, a second channel, and a third channel. The first channel is connected to the breather, the second channel is connected to the water tank, and the third channel is connected to the water cup. Connect the first channel and the second channel through the valve body assembly and block the third channel, so that the water flowing out of the breather supplies water to the water tank. When the amount of water flowing out of the breather reaches the first flow threshold value, close the inlet valve;

[0089] The dishwasher stops working, and the water input into the water tank is reserved in the water tank;

[0090] When the dishwasher is restarted to work again, connect the first channel, the second channel, and the third channel through the valve body assembly, so that the water reserved in the water tank is transported into the water cup.

[0091] Open the water inlet valve to let water enter the breather, and measure the amount of water flowing out of the breather with a flow meter, achieving precise control of the water inlet process. During the stage of supplying water to the water tank, the first channel is connected to the second channel and the third channel is blocked through the valve body assembly, enabling the water to flow precisely towards the water tank. When the amount of water flowing out of the breather reaches the first flow threshold, close the water inlet valve to ensure that the water tank obtains an appropriate amount of water. When the dishwasher stops working, the water input into the water tank remains in the water tank. When starting again, this reserved water can be directly transported to the water cup for cleaning through the valve body assembly connecting the three channels. Compared with injecting cold water and heating it again each time it starts, using the reserved water reduces the energy consumption required for heating cold water. Using the water reserved in the water tank for subsequent cleaning avoids introducing entirely new water from the outside each time, thereby reducing the overall water consumption.

[0092] In addition to the features of the above embodiments, this embodiment further defines that: after the steps of opening the water inlet valve to let water enter the breather and measuring the amount of water flowing out of the breather with a flow meter, the following steps are further included:

[0093] Soften the water flowing out of the breather through a water softener.

[0094] Softening the water flowing out of the breather through a water softener can significantly reduce the content of calcium, magnesium and other ions in the water. This greatly reduces the formation of water scale when the subsequent water flows through various components of the dishwasher, such as heating elements, pipes, spray arms, etc. The reduction of water scale can ensure that these key components maintain good working conditions and avoid affecting the equipment performance due to the accumulation of water scale.

[0095] In addition to the features of the above embodiments, this embodiment further defines that: the specific steps of connecting the first channel, the second channel and the third channel through the valve body assembly to transport the water in the water tank to the water cup include:

[0096] Connect the first channel, the second channel and the third channel through the valve body assembly;

[0097] Determine the completion of adding water from the water tank to the water cup by judging the remaining amount of the water tank through the connection time of the first channel, the second channel and the third channel opened by the valve body assembly or a sensor.

[0098] By determining the connection time of the first channel, the second channel, and the third channel through the valve body assembly to complete water addition, extremely precise water volume control can be achieved. By controlling the connection time or using a sensor to judge the remaining amount of water in the water tank to determine the completion of water addition, the accuracy and intelligence level of water addition are further improved. The sensor can monitor the change of the water volume in the water tank in real time. When it detects that the remaining amount of water in the water tank reaches the set water addition termination condition, it timely controls the valve body assembly to stop water addition. This flexible and precise water addition control method greatly improves the user experience. Users no longer need to manually estimate or adjust the water addition volume. Just start the dishwasher, and the device can automatically complete the water addition operation according to the preset connection time or sensor feedback.

[0099] In addition to the features of the above embodiments, this embodiment further defines: After the washing is completed, open the inlet valve to supply water to the water tank. The specific steps for reserving the water input into the water tank in the water tank are as follows:

[0100] After the washing is completed, open the inlet valve to let water enter the breather, and measure the water volume flowing out of the breather through a flow meter;

[0101] Perform a flow path switching through the valve body assembly. The valve body assembly is provided with a first channel, a second channel, and a third channel. The first channel is connected to the breather, the second channel is connected to the water tank, and the third channel is connected to a water cup. Connect the first channel and the second channel through the valve body assembly and block the third channel;

[0102] Close the inlet valve when the water volume flowing out of the breather reaches the first flow threshold.

[0103] By opening the inlet valve to let water enter the breather after the washing is completed and accurately measuring the water volume flowing out of the breather by using a flow meter, this measure ensures that the water volume entering the water tank can be accurately controlled. In terms of flow path switching, by connecting the first channel and the second channel through the valve body assembly and blocking the third channel, the water flow can accurately flow to the water tank. When the water volume flowing out of the breather reaches the first flow threshold, close the inlet valve, so that the water volume stored in the water tank is just right. Precise water inlet control plays a good role in protecting the internal equipment of the dishwasher. It avoids waste caused by excessive water inlet. Stable and appropriate water storage in the water tank provides a guarantee for improving the consistency of the cleaning effect. Before each washing, there is a precise amount of water in the water tank, which can ensure that during the cleaning process, whether it is the pre-rinsing in the early stage or the formal cleaning stage, stable water pressure and water flow can be provided. Stable water pressure enables the spray arm to spray water with a constant force and angle, comprehensively and evenly flushing the tableware.

[0104] Embodiment 2

[0105] Such as Figure 3As shown in the figure, this embodiment discloses a dishwasher, including: a respirator 1; a water softener 2, the water softener 2 is communicated with the liquid outlet end of the respirator 1; an inner tank 3, the inner tank 3 is provided with a cleaning cavity, and the inner tank 3 is provided with an opening communicated with the cleaning cavity; a water cup 4, the water cup 4 is arranged on the inner tank 3 and located on the bottom wall of the inner tank 3; a water tank 5, the water tank 5 is arranged on the inner tank 3 and located on the top wall of the inner tank 3, and the water tank 5 is in contact with the inner tank 3 and can perform heat exchange with the inner tank 3; a valve body assembly 6, the valve body assembly 6 is respectively communicated with the water softener 2, the water cup 4 and the water tank 5; a control assembly, the control assembly is electrically connected with the valve body assembly 6 and is used to execute the above-mentioned dishwasher control method.

[0106] In the second aspect of this application, a dishwasher is disclosed. The respirator 1 is communicated with the water softener 2, and the water flowing out of the respirator 1 is first softened by the water softener 2. This design can significantly reduce the content of calcium, magnesium and other ions in the water and reduce the formation of water scale. During the cleaning process, the softened water can more effectively dissolve oil stains and dirt, improve the cleaning effect of tableware, and at the same time prevent water scale from accumulating on the surfaces of components such as heating elements and pipelines, protect the key components of the equipment, and extend the service life of the equipment. The water tank 5 is arranged on the top wall of the inner tank 3 and is in contact with it, and can perform heat exchange with the inner tank 3. The heat of the inner tank 3 is used to heat the water tank 5, reducing the heating time and heating loss during subsequent use. The valve body assembly 6 is respectively communicated with the water softener 2, the water cup 4 and the water tank 5, and the control assembly is electrically connected with the valve body assembly 6 to execute a specific control method. This enables the dishwasher to accurately control the water flow path and flow rate according to the requirements of different cleaning stages. In the processes of water inlet, cleaning, rinsing, etc., by switching the flow channels of the valve body assembly 6, it is ensured that the water cup 4 and the water tank 5 obtain appropriate amounts of water, avoiding waste of water resources and at the same time ensuring the cleaning effect. The water cup 4 is arranged on the bottom wall of the inner tank 3, and the water tank 5 is arranged on the top wall of the inner tank 3. This layout makes full use of the space of the inner tank 3, making each component compact and orderly. At the same time, it is convenient for the water flow to circulate among the components, realizing efficient cleaning, heat exchange and other functions, and improving the overall performance of the dishwasher.

[0107] As Figure 4 、 Figure 5 and Figure 6As shown in the figure, in addition to the features of the above embodiments, this embodiment further defines that the water tank 5 includes a water tank body 51, an overflow pipe 52 and a locking member 53. The water tank body 51 is provided with a receiving cavity 501. The overflow pipe 52 is arranged on the water tank body 51 and is located in the receiving cavity 501. The inner tank 3 is provided with an overflow hole. A part of the locking member 53 passes through the overflow hole and is connected to the pipe wall of the overflow pipe 52. A liquid passing notch 5301 is provided on the part of the locking member 53 located inside the inner tank 3. The receiving cavity 501, the overflow pipe 52, the overflow hole and the liquid passing notch 5301 are communicated in sequence. Through the synergistic effect of the overflow pipe 52, the overflow hole 301 and the locking member 53, the phenomenon of water overflow in the water tank body 51 when the water level is too high is effectively prevented. When the water level in the receiving cavity 501 rises to a certain extent, the water will flow into the overflow pipe 52 and be discharged into the inner tank 3 through the overflow hole 301 and the liquid passing notch 5301, avoiding the water from overflowing from the water tank body 51, thereby preventing the water from leaking to other parts of the dishwasher, protecting the equipment from water damage and ensuring the safe and stable operation of the equipment.

[0108] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0109] The above-described embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the invention patent should be subject to the appended claims.

Claims

1. A dishwasher control method, characterized in that: The dishwasher control method comprises: S1. Reserving water in a water tank, flowing the reserved water in the water tank into a water cup, and outputting the water in the water cup for washing dishes; S2. During the cleaning process, the water inlet valve is opened to supply water to the water tank, and the water in the water tank is heat exchanged with the inner tank. After the cleaning is completed, the cleaned water is discharged, and the water in the water tank that has undergone heat exchange is transported to the water cup for cleaning; S3. After washing is completed, the water inlet valve is opened to supply water to the water tank, and the water input into the water tank is reserved in the water tank.

2. The dishwasher control method according to claim 1, characterized in that: During the cleaning process, the water inlet valve is opened to supply water to the water tank, and the water in the water tank is heat exchanged with the inner tank. After the cleaning is completed, the cleaned water is discharged, and the specific steps of transferring the heat exchanged water in the water tank to the water cup for cleaning are as follows: S21, during the cleaning process, the water inlet valve is opened to input a first preset threshold amount of water into the water tank to supply water to the water tank, and the water in the water tank is heat exchanged with the inner tank; S22, detecting parameters of water in the dishwasher, and performing cyclic cleaning when the parameters of water in the dishwasher are lower than a first set threshold, and discharging the cleaned water when the parameters of water in the dishwasher are higher than the first set threshold; S23, after the washed water is discharged, the water in the water tank that has undergone heat exchange is transported to the water cup, and the water in the water cup is transported to the spray arm, and the tableware in the inner tank is washed for a first set time through the spray arm.

3. The dishwasher control method according to claim 2, characterized in that: The specific steps of inputting the water volume of the first preset threshold value into the water tank to supply water to the water tank are as follows: Open the water inlet valve to let water into the respirator, and measure the amount of water flowing out of the respirator with a flow meter; The flow channel is switched by a valve body assembly, and the valve body assembly is provided with a first channel, a second channel and a third channel. The first channel is connected to the respirator, the second channel is connected to the water tank, and the third channel is connected to the water cup. The first channel is connected to the second channel and the third channel is blocked by the valve body assembly, so that water flowing out of the respirator supplies water to the water tank, and the water inlet valve is closed when the amount of water flowing out of the respirator reaches a first flow threshold.

4. The dishwasher control method according to claim 3, characterized in that: The specific steps of transferring the heat-exchanged water in the water tank to the water cup are as follows: The first channel, the second channel and the third channel are all connected through the valve body assembly, so that the water in the water tank is transported to the water cup.

5. The dishwasher control method according to claim 3, characterized in that: After the step of closing the water inlet valve when the amount of water flowing out of the respirator reaches the first flow threshold, the following steps are also included: The pump body is turned on to transport the water in the water tank to the pipe surrounding the inner tank through the pump body. The water entering the pipe exchanges heat with the inner tank and then enters the water tank again. Monitor the temperature of the water in the water tank. When the water temperature in the water tank is lower than the preset temperature, the pump body will continue to work. At the same time, monitor the temperature change rate of the water in the water tank. When the temperature change rate of the water is lower than the preset speed, the pumping efficiency of the pump body will be increased. When the temperature change rate of the water is higher than the preset speed, the pumping efficiency of the pump body will be reduced. When the water temperature in the water tank is higher than or equal to the preset temperature, the pump stops working.

6. The dishwasher control method according to any one of claims 1 to 5, characterized in that: The specific steps of reserving water in the water tank and flowing the water reserved in the water tank into the water cup are as follows: Open the water inlet valve to let water into the respirator, and measure the amount of water flowing out of the respirator with a flow meter; The flow channel is switched by a valve body assembly, wherein the valve body assembly is provided with a first channel, a second channel and a third channel, wherein the first channel is connected to the respirator, the second channel is connected to the water tank, and the third channel is connected to the water cup. The first channel is connected to the second channel and the third channel is blocked by the valve body assembly, so that the water flowing out of the respirator supplies water to the water tank, and the water inlet valve is closed when the amount of water flowing out of the respirator reaches a first flow threshold; The dishwasher stops working and the water input into the water tank remains in the water tank; When the dishwasher is started again, the first channel, the second channel and the third channel are connected through the valve body assembly, so that the water reserved in the water tank is transported to the water cup.

7. The dishwasher control method according to claim 6, characterized in that: The specific steps of connecting the first channel, the second channel and the third channel through the valve body assembly so that the water in the water tank is transported to the water cup include: Connecting the first channel, the second channel and the third channel through the valve body assembly; The completion of the water tank filling the water cup is determined by the connection time of opening the first channel, the second channel and the third channel by the valve body assembly or judging the remaining amount of the water tank by the sensor.

8. The dishwasher control method according to claim 1, characterized in that: After washing is completed, the specific steps of opening the water inlet valve to supply water to the water tank and retaining the water in the water tank are as follows: After washing is completed, open the water inlet valve to let water into the respirator, and measure the amount of water flowing out of the respirator with a flow meter; The flow channel is switched by a valve body assembly, wherein the valve body assembly is provided with a first channel, a second channel and a third channel, wherein the first channel is connected to the respirator, the second channel is connected to the water tank, and the third channel is connected to the water cup, and the first channel is connected to the second channel and the third channel is blocked by the valve body assembly; When the amount of water flowing out of the respirator reaches the first flow threshold, close the water inlet valve.

9. A dishwasher, characterized in that: The dishwasher comprises: Respirator (1); A water softener (2), the water softener (2) being in communication with a liquid outlet end of the respirator (1); An inner tank (3), wherein the inner tank (3) is provided with a cleaning cavity, and the inner tank (3) is fixedly connected to the water softener (2); a water cup (4), the water cup (4) being arranged on the inner container (3) and located on the bottom wall of the inner container (3); A water tank (5), the water tank (5) being arranged on the inner tank (3) and located on the top wall of the inner tank (3), the water tank (5) being in contact with the inner tank (3) and capable of heat exchange with the inner tank (3); A valve body assembly (6), wherein the valve body assembly (6) is respectively connected to the water softener (2), the water cup (4) and the water tank (5); A control component, wherein the control component is electrically connected to the valve body component (6) and is used to execute the dishwasher control method according to any one of claims 1 to 8.

10. The dishwasher according to claim 9, characterized in that the water tank (5) comprises a water tank body (51), an overflow pipe (52) and a locking member (53); the water tank body (51) is provided with a receiving cavity (501); the overflow pipe (52) is arranged on the water tank body (51) and is located in the receiving cavity (501); the inner tank (3) is provided with an overflow hole; a portion of the locking member (53) passes through the overflow hole and is connected to the wall of the overflow pipe (52); a portion of the locking member (53) located in the inner tank (3) is provided with a liquid-passing notch (5301); and the receiving cavity (501), the overflow pipe (52), the overflow hole and the liquid-passing notch (5301) are sequentially connected.

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