Tableware cleaning apparatus, control method thereof, and computer-readable storage medium

Abstract

The application relates to the technical field of household appliances, and discloses a tableware cleaning device, a control method thereof and a computer readable storage medium, the tableware cleaning device comprising: a shell, an accommodating cavity for accommodating tableware is formed in the interior of the shell; a drying mechanism, the drying mechanism comprises an air inlet pipe, an air outlet pipe and a semiconductor temperature control device, the air inlet pipe is communicated to an air inlet of the accommodating cavity, the air outlet pipe is communicated to an air outlet of the accommodating cavity, and the air inlet pipe and the air outlet pipe are communicated through the semiconductor temperature control device; an ethanol device, the ethanol device is arranged on the semiconductor temperature control device, and the ethanol device can provide ethanol gas to the accommodating cavity through the semiconductor temperature control device in the drying process of the drying mechanism. The tableware cleaning device can introduce ethanol gas into dry air in the process of drying tableware, promote the volatilization efficiency of water on the tableware through the volatilization performance of the ethanol gas, and thus improve the drying efficiency of the drying mechanism on the tableware in the tableware cleaning device.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, specifically to tableware cleaning equipment and its control method, and a computer-readable storage medium. Background Technology

[0002] Dishwashers and other dishwashing appliances, as kitchen cleaning appliances with a long history, can usually replace users in completing the tedious task of cleaning dishes, making them very popular. In addition to washing dishes, the drying function is also a key function that users pay special attention to during the use of dishwashers and other dishwashing appliances.

[0003] To achieve better drying results, existing dishwashers and other dishwashing equipment add rinsing agents composed of chemicals to the final hot water rinse, allowing water on the surface of the dishes to evaporate more easily. However, these chemicals are not washed away with the evaporation and remain on the surface of the dishes. Long-term use of dishes with these chemical residues can affect the user's health. Moreover, as a consumable, rinsing agents pose significant problems for the user experience in terms of both cost and frequent refills. Summary of the Invention

[0004] In view of this, the present invention provides a tableware cleaning device to solve the technical problem that the tableware cleaning device in the prior art has residual rinsing agent during the drying process.

[0005] In a first aspect, the present invention provides a tableware cleaning device, comprising: a housing, the interior of which is formed a receiving cavity for accommodating tableware; a drying mechanism, comprising an air inlet pipe, an air outlet pipe, and a semiconductor temperature control device, wherein the air inlet pipe is connected to the air inlet of the receiving cavity, the air outlet pipe is connected to the air outlet of the receiving cavity, and the air inlet pipe and the air outlet pipe are connected through the semiconductor temperature control device; and an ethanol device, wherein the ethanol device is disposed within the semiconductor temperature control device, and the ethanol device is capable of supplying ethanol gas to the receiving cavity through the semiconductor temperature control device during the drying process of the drying mechanism.

[0006] Beneficial effects: The tableware cleaning equipment proposed in this embodiment can introduce ethanol gas into the dry air during the tableware drying process. The volatile properties of ethanol gas promote the evaporation efficiency of moisture on the tableware, thereby improving the drying efficiency of the drying mechanism for the tableware in the tableware cleaning equipment.

[0007] In one optional embodiment, the semiconductor temperature control device includes a cold end, an air inlet pipe and an air outlet pipe, including a first air inlet pipe and a first air outlet pipe connected to the cold end, the first air inlet pipe, the first air outlet pipe and the cold end forming a water vapor liquefaction circuit.

[0008] And / or, the semiconductor temperature control device includes a hot end, an air inlet pipe and an air outlet pipe, including a second air inlet pipe and a second air outlet pipe connected to the hot end, the second air inlet pipe, the second air outlet pipe and the hot end forming an air drying circuit.

[0009] Beneficial effects: The function of the water vapor liquefaction circuit is to remove water vapor from the circulating air during the circulating drying process of the tableware cleaning equipment; the function of the air drying circuit is to provide hot air to accelerate the evaporation of water vapor on the tableware during the circulating drying process of the tableware cleaning equipment.

[0010] In one alternative embodiment, the ethanol device includes an ethanol switch valve containing ethanol, the ethanol switch valve being equipped with an electric heating unit, the electric heating unit heating the ethanol switch valve to generate ethanol gas which flows to a semiconductor temperature control device.

[0011] Beneficial effects: At room temperature, the ethanol switch valve contains liquid ethanol. When the tableware cleaning equipment uses the drying mechanism to dry the tableware in the receiving cavity, the tableware cleaning equipment heats the ethanol switch valve through the electric heating unit, thereby vaporizing the liquid ethanol into ethanol gas. The ethanol gas flows into the receiving cavity through the semiconductor temperature control device.

[0012] In one optional embodiment, the ethanol switch valve is disposed at the cold end and located at the drain port of the semiconductor temperature control device. When the ethanol switch valve is in the closed state, the ethanol switch valve forms a receiving tank for containing ethanol. When the ethanol switch valve is in the open state, the ethanol switch valve forms a drain channel for discharging liquefied water at the cold end.

[0013] Beneficial effects: When the ethanol switch valve is in the closed state, the container formed by the ethanol switch valve can hold liquid ethanol. When the tableware cleaning equipment uses the drying mechanism to dry the tableware in the container, the tableware cleaning equipment heats the ethanol switch valve through the electric heating unit, thereby vaporizing the liquid ethanol into ethanol gas. The ethanol gas flows into the container through the semiconductor temperature control device. At this time, the ethanol switch valve does not contain ethanol.

[0014] In one optional embodiment, the tableware cleaning device further includes a humidity sensor and an ethanol sensor disposed in the receiving cavity. The tableware cleaning device controls the drying mechanism and the ethanol switching valve based on the humidity information detected by the humidity sensor and the ethanol information detected by the ethanol sensor.

[0015] Beneficial effects: The humidity sensor is used to detect the humidity of the container. When the real-time humidity value of the container is greater than the preset humidity value, it means that the tableware in the container needs to be dried. At this time, the drying mechanism continues to dry the tableware in the container until the real-time humidity value detected by the humidity sensor is no greater than the preset humidity value.

[0016] Secondly, the present invention provides a control method for a tableware cleaning device. The control method for the tableware cleaning device is implemented using the tableware cleaning device of the first aspect of the present invention. The control method for the tableware cleaning device includes: obtaining a drying instruction from the tableware cleaning device; controlling the drying mechanism of the tableware cleaning device to perform a drying operation and introducing ethanol gas into the receiving cavity through the ethanol device of the tableware cleaning device; controlling the drying gas of the drying mechanism and the ethanol gas to circulate between the receiving cavity and the drying mechanism; and controlling the ethanol device to stop introducing ethanol gas into the receiving cavity when the drying operation is completed by the drying mechanism.

[0017] Beneficial effects: The tableware cleaning equipment proposed in this embodiment can introduce ethanol gas into the dry air during the tableware drying process. The volatile properties of ethanol gas promote the evaporation efficiency of moisture on the tableware, thereby improving the drying efficiency of the drying mechanism for the tableware in the tableware cleaning equipment.

[0018] In one optional implementation, controlling the tableware cleaning equipment to perform the drying operation specifically includes: controlling the opening of the water vapor liquefaction circuit of the drying mechanism, so that the water vapor in the receiving cavity flows to the cold end of the semiconductor temperature control device through the water vapor liquefaction circuit and is liquefied; controlling the opening of the air drying circuit of the drying mechanism, so that the air in the receiving cavity flows to the hot end of the semiconductor temperature control device through the air drying circuit and is heated, and then flows back to the receiving cavity.

[0019] Beneficial effects: The function of the water vapor liquefaction circuit is to remove water vapor from the circulating air during the circulating drying process of the tableware cleaning equipment; the function of the air drying circuit is to provide hot air to accelerate the evaporation of water vapor on the tableware during the circulating drying process of the tableware cleaning equipment.

[0020] In one optional embodiment, the process of introducing ethanol gas into the receiving cavity through the ethanol device of the tableware cleaning equipment specifically includes: controlling the electric heating unit of the tableware cleaning equipment to heat the ethanol switching valve to generate ethanol gas; and controlling the ethanol gas to flow into the receiving cavity of the tableware cleaning equipment through the water vapor liquefaction circuit.

[0021] Beneficial effects: At room temperature, the ethanol switch valve contains liquid ethanol. When the tableware cleaning equipment uses the drying mechanism to dry the tableware in the receiving cavity, the tableware cleaning equipment heats the ethanol switch valve through the electric heating unit, thereby vaporizing the liquid ethanol into ethanol gas. The ethanol gas flows into the receiving cavity through the semiconductor temperature control device.

[0022] In one optional embodiment, after the drying operation is completed by the drying mechanism and the ethanol device stops supplying ethanol gas to the containment chamber, the process includes: controlling both the water vapor liquefaction circuit and the air drying circuit to be in the open state; controlling the ethanol switch valve to open, and discharging the liquefied water at the semiconductor temperature control device through the ethanol switch valve.

[0023] Beneficial effects: During the drying process of the drying mechanism, the water vapor liquefaction circuit removes water vapor from the circulating air during the circulating drying process of the tableware cleaning equipment. The air drying circuit provides hot air to accelerate the evaporation of water vapor on the tableware during the circulating drying process of the tableware cleaning equipment. The ethanol switch valve is used to discharge the condensate generated during the drying process, thereby reducing the phenomenon of condensate re-vaporizing and flowing back to the tableware.

[0024] In one optional embodiment, after the liquefied water at the semiconductor temperature control device is discharged through the ethanol switch valve, the process includes: controlling the ethanol switch valve to close after the liquefied water at the semiconductor temperature control device is discharged; and the ethanol gas in the containment cavity liquefies at the cold end of the semiconductor temperature control device and then converges into the ethanol switch valve.

[0025] Beneficial effects: In order to reduce the time interference between the process of heating ethanol vaporization and the process of discharging condensate, and to reduce the mixing of condensate and liquid ethanol, the embodiments of this application propose to first continuously heat ethanol vaporization. During this time, the water vapor liquefaction circuit of the tableware cleaning equipment is not turned on. After the ethanol in the ethanol switch valve is completely vaporized, the water vapor liquefaction circuit of the tableware cleaning equipment is turned on. At this time, the water vapor in the tableware cleaning equipment can condense and gather inside the ethanol switch valve.

[0026] After the ethanol valve completes the drying operation, the ethanol valve is first opened to drain the liquid water stored inside. Then the ethanol valve is closed, and the gaseous ethanol gas is condensed, so that the ethanol gas can be condensed into liquid ethanol and collected inside the ethanol valve, thereby reducing the mixing of condensate and liquid ethanol.

[0027] In one alternative embodiment, the control method of the tableware cleaning equipment further includes: controlling the mixed gas in the receiving cavity to first liquefy water vapor and then liquefy ethanol by controlling the temperature and pressure of the receiving cavity and / or the drying mechanism.

[0028] Beneficial effects: Ethanol has a boiling point of 78°C, while water has a boiling point of 100°C. This embodiment utilizes this difference in boiling points. First, the temperature at the ethanol valve is controlled within the range of 78°C-100°C. At this temperature, water vapor condenses into liquid water and is discharged from the ethanol valve. Then, the temperature at the ethanol valve is controlled below 78°C. At this temperature, ethanol gas condenses into liquid ethanol and is stored inside the ethanol valve.

[0029] Furthermore, by controlling the switching on and off of the first, second, third, and fourth fans, the gas pressure at the ethanol switching valve can be controlled, thereby achieving the goal of condensing water vapor first and then condensing ethanol gas by controlling the gas pressure.

[0030] Thirdly, the present invention provides a computer-readable storage medium storing computer instructions, which, when executed, implement the control method for the tableware cleaning device described in the second aspect.

[0031] Beneficial effects: The computer-readable storage medium provided in this embodiment, by adopting the control method of the tableware cleaning equipment of the above embodiment, has all the technical effects of the control method of the tableware cleaning equipment described above. Attached Figure Description

[0032] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the water vapor liquefaction circuit of a tableware cleaning device according to an embodiment of the present invention;

[0034] Figure 2 This is a schematic diagram of the air drying circuit of a tableware cleaning device according to an embodiment of the present invention;

[0035] Figure 3 for Figure 1 A first-view structural diagram of the semiconductor temperature control device in the tableware cleaning equipment shown.

[0036] Figure 4 for Figure 1 A second-view structural diagram of the semiconductor temperature control device in the tableware cleaning equipment shown;

[0037] Figure 5 This is a schematic diagram of the structure of an ethanol switching valve according to an embodiment of the present invention;

[0038] Figure 6 for Figure 5 The ethanol switching valve shown is a cross-sectional view.

[0039] Figure 7 This is a flowchart of a control method for a tableware cleaning device according to an embodiment of the present invention;

[0040] Figure 8 This is a flowchart of a control method for a tableware cleaning device according to another embodiment of the present invention.

[0041] Explanation of reference numerals in the attached figures:

[0042] 100. Dishware cleaning equipment; 101. Humidity sensor; 102. Ethanol sensor;

[0043] 10. Shell;

[0044] 20. Semiconductor temperature control device; 21. Cold end; 22. Hot end;

[0045] 31. First air inlet duct; 311. First solenoid valve; 312. First fan; 32. First air outlet duct; 321. Second solenoid valve; 322. Second fan;

[0046] 41. Second air inlet duct; 411. Third solenoid valve; 412. Third fan; 42. Second air outlet duct; 421. Fourth solenoid valve; 422. Fourth fan;

[0047] 50. Ethanol switch valve; 51. Side plate; 52. Lower semicircular plate; 53. Upper semicircular plate; 54. Motor. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] In the description of this invention, it should be noted that the terms "inner," "upper," "outer," "lower," and "below," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0050] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed connection, detachable connection, or integral connection; they can refer to mechanical connection or electrical connection; they can refer to direct connection or indirect connection through an intermediate medium; they can refer to connection within two components; they can refer to wireless connection or wired connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0051] Regarding the issue of chemical detergents added during the hot water rinsing process in existing dishwashers and other dishwashing equipment leaving residues on the surface of tableware, the applicant's analysis revealed that the purpose of chemical detergents is to reduce the surface energy of the solution. Surface energy is generated by cohesive forces and can be characterized by the energy required for water molecules to break through the solution surface. Under normal circumstances, the higher the surface energy of the solution, the more difficult it is for water molecules to evaporate into the air, and the less easily the tableware dries. While chemical detergents can reduce the surface energy of the solution during hot water rinsing, allowing water molecules on the tableware to evaporate into the air more quickly, the chemical detergent itself is part of the solution and will adhere to the tableware during the hot water rinsing process, making it difficult to remove.

[0052] To address the technical problem of residual rinsing agent in tableware cleaning equipment during the drying process, this invention proposes adding gaseous ethanol gas during the drying process of the tableware cleaning equipment. The volatility of ethanol gas reduces the surface energy of water adhering to the tableware, making it easier for water molecules to evaporate into the air, thereby improving the drying effect of the tableware.

[0053] The following is combined with Figures 1 to 6 The following describes embodiments of the present invention.

[0054] like Figures 1 to 6 As shown, according to an embodiment of the present invention, in one aspect, the present invention provides a tableware cleaning device 100, the tableware cleaning device 100 including: a housing 10, the interior of the housing 10 having a receiving cavity for receiving tableware; a drying mechanism, the drying mechanism including an air inlet pipe, an air outlet pipe and a semiconductor temperature control device 20, the air inlet pipe being connected to the air inlet of the receiving cavity, the air outlet pipe being connected to the air outlet of the receiving cavity, and the air inlet pipe and the air outlet pipe being connected through the semiconductor temperature control device 20; an ethanol device, the ethanol device being disposed in the semiconductor temperature control device 20, the ethanol device being able to provide ethanol gas to the receiving cavity through the semiconductor temperature control device 20 during the drying process of the drying mechanism.

[0055] In this embodiment, the tableware cleaning device 100 proposed in this embodiment can introduce ethanol gas into the dry air during the tableware drying process. The volatile properties of ethanol gas promote the evaporation efficiency of moisture on the tableware, thereby improving the drying efficiency of the drying mechanism for the tableware in the tableware cleaning device 100.

[0056] Specifically, this embodiment utilizes the volatility of ethanol gas to reduce the surface energy of moisture adhering to the tableware, thereby making it easier for water molecules to evaporate into the air and improving the drying effect of the tableware. At room temperature, the surface energy of water is 72.8 J / m². 2 The surface energy of ethanol is 22 J / m. 2 -23J / m 2Furthermore, ethanol is a common substance with stable recycling performance. Water and ethanol are highly miscible, and water and ethanol are easily separated. Based on these physical properties, using ethanol to assist in drying can achieve the effect of drying tableware without consumables.

[0057] In addition, since ethanol gas can be recycled and reused in the drying process, the tableware cleaning equipment 100 achieves the technical effect of consumable-free circulating drying.

[0058] It should be noted that the embodiments of this application do not limit the specific structure of the semiconductor temperature control device 20 and the ethanol device, because the embodiments of this application mainly utilize the volatility of ethanol gas to improve the drying efficiency of the surface moisture of tableware. As for the specific structure of the semiconductor temperature control device 20 and the ethanol device, it can be flexibly set according to the actual use environment, including various embodiments. Therefore, the embodiments of this application do not limit the specific structure of the semiconductor temperature control device 20 and the ethanol device.

[0059] like Figures 1 to 6 As shown, in some embodiments, the semiconductor temperature control device 20 includes a cold end 21, and the air inlet pipe and air outlet pipe include a first air inlet pipe 31 and a first air outlet pipe 32 connected to the cold end 21. The first air inlet pipe 31, the first air outlet pipe 32 and the cold end 21 constitute a water vapor liquefaction circuit.

[0060] And / or, the semiconductor temperature control device 20 includes a hot end 22, and the air inlet pipe and air outlet pipe include a second air inlet pipe 41 and a second air outlet pipe 42 connected to the hot end 22. The second air inlet pipe 41, the second air outlet pipe 42 and the hot end 22 constitute an air drying circuit.

[0061] In the above embodiments, the water vapor liquefaction circuit is as follows: Figure 1 As shown, the function of the water vapor liquefaction circuit is to remove water vapor from the circulating air during the circulating drying process of the tableware cleaning equipment 100. During this circulating dehumidification process, the water vapor in the tableware cleaning equipment 100 enters the first air inlet pipe 31 through the first solenoid valve 311. The water vapor in the first air inlet pipe 31 is blown to the cold end 21 of the semiconductor temperature control device 20 by the first fan 312. The water vapor in the water vapor condenses into liquid water at the cold end 21 of the semiconductor temperature control device 20. The dry air in the water vapor is drawn to the first air outlet pipe 32 by the second fan 322, and then enters the receiving cavity of the tableware cleaning equipment 100 through the second solenoid valve 321 in the first air outlet pipe 32 to circulate and dehumidify the tableware.

[0062] Air drying circuit such as Figure 2As shown, the function of the air drying circuit is to provide hot air to accelerate the evaporation of water vapor on the tableware during the circulating drying process of the tableware cleaning equipment 100. During this circulating drying process, the air in the tableware cleaning equipment 100 enters the second air inlet pipe 41 through the third solenoid valve 411. The air in the second air inlet pipe 41 is blown to the hot end 22 of the semiconductor temperature control device 20 by the third fan 412. The air is heated into hot air at the hot end 22 of the semiconductor temperature control device 20. The hot air is drawn into the second air outlet pipe 42 by the fourth fan 422, and then enters the receiving cavity of the tableware cleaning equipment 100 through the fourth solenoid valve 421 in the second air outlet pipe 42 to perform a circulating drying operation on the tableware.

[0063] like Figures 1 to 6 As shown, in some embodiments, the ethanol device includes an ethanol switch valve 50 containing ethanol, the ethanol switch valve 50 is provided with an electric heating unit, the electric heating unit heats the ethanol switch valve 50 to generate ethanol gas and flows to the semiconductor temperature control device 20.

[0064] In this embodiment, at room temperature, the ethanol switch valve 50 contains liquid ethanol. When the tableware cleaning equipment 100 uses the drying mechanism to dry the tableware in the receiving cavity, the tableware cleaning equipment 100 heats the ethanol switch valve 50 through the electric heating unit, thereby vaporizing the liquid ethanol into ethanol gas. The ethanol gas flows into the receiving cavity through the semiconductor temperature control device 20.

[0065] During the cyclic drying process of the tableware in the drying unit, ethanol gas will continuously integrate and overflow into the liquid surface of the tableware, thereby destroying the high-energy surface of water and making the residual water to be evaporated more easily and quickly into the air, thus achieving a drying effect similar to that of traditional chemical rinsing agents.

[0066] Specifically, the ethanol switching valve 50 includes a side plate 51, a lower semicircular plate 52, an upper semicircular plate 53, and a motor 54. The motor 54 drives the overlapping area of ​​the lower semicircular plate 52 and the upper semicircular plate 53 to switch the ethanol switching valve 50 on and off. When the lower semicircular plate 52 and the upper semicircular plate 53 overlap, the ethanol switching valve 50 is open. When the lower semicircular plate 52 and the upper semicircular plate 53 do not overlap, the ethanol switching valve 50 is closed.

[0067] The electric heating unit includes a heating wire, a heating tube, or a heating plate. When the electric heating unit is set as a heating wire or a heating tube, the electric heating unit is arranged to be distributed in a roundabout manner along the ethanol switch valve 50, so as to cover the working surface of the ethanol switch valve 50.

[0068] like Figures 1 to 6As shown, in some embodiments, the ethanol switch valve 50 is disposed at the cold end 21 and located at the drain port of the semiconductor temperature control device 20. When the ethanol switch valve 50 is in the closed state, the ethanol switch valve 50 forms a receiving tank for containing ethanol. When the ethanol switch valve 50 is in the open state, the ethanol switch valve 50 forms a drain channel for discharging liquefied water at the cold end 21.

[0069] In the above embodiment, when the ethanol switch valve 50 is in the closed state, the receiving tank formed by the ethanol switch valve 50 can hold liquid ethanol. When the tableware cleaning equipment 100 uses the drying mechanism to dry the tableware in the receiving cavity, the tableware cleaning equipment 100 heats the ethanol switch valve 50 through the electric heating unit, thereby causing the liquid ethanol to vaporize into ethanol gas. The ethanol gas flows to the receiving cavity through the semiconductor temperature control device 20. At this time, the ethanol switch valve 50 does not contain ethanol.

[0070] The tableware cleaning equipment 100 utilizes the time when the ethanol switch valve 50 is not holding ethanol to open the ethanol switch valve 50. At this time, the liquid water condensed at the cold end 21 of the semiconductor temperature control device 20 can flow through the ethanol switch valve 50 to the drain port for discharge, thereby reducing the amount of condensed water that is heated into water vapor by the electric heating unit and then flows back into the receiving cavity of the tableware cleaning equipment 100.

[0071] Furthermore, in order to reduce the time interference between the process of heating ethanol vaporization and the process of discharging condensate, and to reduce the mixing of condensate and liquid ethanol, this application embodiment proposes to first continuously heat ethanol vaporization. During this time, the water vapor liquefaction circuit of the tableware cleaning device 100 is not opened. After the ethanol in the ethanol switch valve 50 is completely vaporized, the water vapor liquefaction circuit of the tableware cleaning device 100 is then opened. At this time, the water vapor in the tableware cleaning device 100 can condense and gather inside the ethanol switch valve 50.

[0072] After the ethanol valve 50 completes the drying operation, the ethanol valve 50 is first opened to drain the liquid water stored inside the ethanol valve 50. Then the ethanol valve 50 is closed, and the gaseous ethanol gas is condensed, so that the ethanol gas can be condensed into liquid ethanol and collected inside the ethanol valve 50, thereby reducing the mixing of condensate and liquid ethanol.

[0073] like Figures 1 to 6 As shown, in some embodiments, the tableware cleaning device 100 further includes a humidity sensor 101 and an ethanol sensor 102 disposed in the receiving cavity. The tableware cleaning device 100 controls the drying mechanism and the ethanol switching valve 50 based on the humidity information detected by the humidity sensor 101 and the ethanol information detected by the ethanol sensor 102.

[0074] In the above embodiment, the humidity sensor 101 is used to detect the humidity of the receiving cavity. When the real-time humidity value of the receiving cavity is greater than the preset humidity value, it indicates that the tableware in the receiving cavity needs to be dried. At this time, the drying mechanism continues to dry the tableware in the receiving cavity until the real-time humidity value detected by the humidity sensor 101 is not greater than the preset humidity value.

[0075] During the process of the tableware cleaning equipment 100 completing the drying operation of the tableware and recovering ethanol, the ethanol sensor 102 is used to detect the ethanol concentration in the receiving chamber. When the real-time ethanol concentration in the receiving chamber is greater than the preset ethanol concentration, it indicates that the ethanol switch valve 50 has not completely recovered the ethanol. At this time, the ethanol switch valve 50 continues to recover ethanol gas until the real-time ethanol concentration detected by the ethanol sensor 102 is not greater than the preset ethanol concentration.

[0076] like Figures 1 to 7 As shown, in a second aspect, the present invention provides a control method for a tableware cleaning device 100. The control method for the tableware cleaning device 100 is implemented using the tableware cleaning device 100 of the first aspect of the present invention. The control method for the tableware cleaning device 100 includes: obtaining a drying command from the tableware cleaning device 100; controlling the drying mechanism of the tableware cleaning device 100 to perform a drying operation and introducing ethanol gas into the receiving cavity through the ethanol device of the tableware cleaning device 100; controlling the drying gas of the drying mechanism and the ethanol gas to circulate between the receiving cavity and the drying mechanism; and controlling the ethanol device to stop introducing ethanol gas into the receiving cavity when the drying operation is completed by the drying mechanism.

[0077] In this embodiment, the tableware cleaning device 100 proposed in this embodiment can introduce ethanol gas into the dry air during the tableware drying process. The volatile properties of ethanol gas promote the evaporation efficiency of moisture on the tableware, thereby improving the drying efficiency of the drying mechanism for the tableware in the tableware cleaning device 100.

[0078] In addition, since ethanol gas can be recycled and reused in the drying process, the tableware cleaning equipment 100 achieves the technical effect of consumable-free circulating drying.

[0079] like Figures 1 to 7 As shown, in some embodiments, controlling the tableware cleaning device 100 to perform the drying operation specifically includes: controlling the opening of the water vapor liquefaction circuit of the drying mechanism, so that the water vapor in the receiving cavity flows to the cold end 21 of the semiconductor temperature control device 20 through the water vapor liquefaction circuit and is liquefied; controlling the opening of the air drying circuit of the drying mechanism, so that the air in the receiving cavity flows to the hot end 22 of the semiconductor temperature control device 20 through the air drying circuit and is heated, and then flows back to the receiving cavity.

[0080] In this embodiment, the water vapor liquefaction circuit is as follows: Figure 1As shown, the function of the water vapor liquefaction circuit is to remove water vapor from the circulating air during the circulating drying process of the tableware cleaning equipment 100. During this circulating dehumidification process, the water vapor in the tableware cleaning equipment 100 enters the first air inlet pipe 31 through the first solenoid valve 311. The water vapor in the first air inlet pipe 31 is blown to the cold end 21 of the semiconductor temperature control device 20 by the first fan 312. The water vapor in the water vapor condenses into liquid water at the cold end 21 of the semiconductor temperature control device 20. The dry air in the water vapor is drawn to the first air outlet pipe 32 by the second fan 322, and then enters the receiving cavity of the tableware cleaning equipment 100 through the second solenoid valve 321 in the first air outlet pipe 32 to circulate and dehumidify the tableware.

[0081] Air drying circuit such as Figure 2 As shown, the function of the air drying circuit is to provide hot air to accelerate the evaporation of water vapor on the tableware during the circulating drying process of the tableware cleaning equipment 100. During this circulating drying process, the air in the tableware cleaning equipment 100 enters the second air inlet pipe 41 through the third solenoid valve 411. The air in the second air inlet pipe 41 is blown to the hot end 22 of the semiconductor temperature control device 20 by the third fan 412. The air is heated into hot air at the hot end 22 of the semiconductor temperature control device 20. The hot air is drawn into the second air outlet pipe 42 by the fourth fan 422, and then enters the receiving cavity of the tableware cleaning equipment 100 through the fourth solenoid valve 421 in the second air outlet pipe 42 to perform a circulating drying operation on the tableware.

[0082] like Figures 1 to 7 As shown, in some embodiments, the process of introducing ethanol gas into the receiving cavity through the ethanol device of the tableware cleaning device 100 specifically includes: controlling the electric heating unit of the tableware cleaning device 100 to heat the ethanol switching valve 50 to generate ethanol gas; and controlling the ethanol gas to flow into the receiving cavity of the tableware cleaning device 100 through the water vapor liquefaction circuit.

[0083] In this embodiment, at room temperature, the ethanol switch valve 50 contains liquid ethanol. When the tableware cleaning equipment 100 uses the drying mechanism to dry the tableware in the receiving cavity, the tableware cleaning equipment 100 heats the ethanol switch valve 50 through the electric heating unit, thereby vaporizing the liquid ethanol into ethanol gas. The ethanol gas flows into the receiving cavity through the semiconductor temperature control device 20.

[0084] During the cyclic drying process of the tableware in the drying unit, ethanol gas will continuously integrate and overflow into the liquid surface of the tableware, thereby destroying the high-energy surface of water and making the residual water to be evaporated more easily and quickly into the air, thus achieving a drying effect similar to that of traditional chemical rinsing agents.

[0085] like Figures 1 to 7As shown, in some embodiments, after the drying mechanism completes the drying operation and the ethanol device stops supplying ethanol gas to the containment cavity, the following steps are taken: controlling both the water vapor liquefaction circuit and the air drying circuit to be in the open state; controlling the ethanol switch valve 50 to open, and the liquefied water at the semiconductor temperature control device 20 is discharged through the ethanol switch valve 50.

[0086] In this embodiment, during the drying operation of the drying mechanism, the water vapor liquefaction circuit is used to remove water vapor from the circulating air during the cyclic drying process of the tableware cleaning equipment 100, and the air drying circuit is used to provide hot air to accelerate the evaporation of water vapor on the tableware during the cyclic drying process of the tableware cleaning equipment 100. The ethanol switch valve 50 is used to discharge the condensate generated during the drying operation, thereby reducing the phenomenon of secondary vaporization of condensate and its return to the tableware.

[0087] like Figures 1 to 7 As shown, in some embodiments, after the liquefied water at the semiconductor temperature control device 20 is discharged through the ethanol switch valve 50, the process includes: controlling the ethanol switch valve 50 to close after the liquefied water at the semiconductor temperature control device 20 is discharged; and the ethanol gas in the containment cavity is liquefied at the cold end 21 of the semiconductor temperature control device 20 and then converges into the ethanol switch valve 50.

[0088] In this embodiment, in order to reduce the time interference between the process of heating ethanol vaporization and the process of discharging condensate, and to reduce the mixing of condensate and liquid ethanol, this embodiment proposes to first continuously heat ethanol vaporization. During this time, the water vapor liquefaction circuit of the tableware cleaning device 100 is not opened. After the ethanol in the ethanol switch valve 50 is completely vaporized, the water vapor liquefaction circuit of the tableware cleaning device 100 is then opened. At this time, the water vapor in the tableware cleaning device 100 can condense and gather inside the ethanol switch valve 50.

[0089] After the ethanol valve 50 completes the drying operation, the ethanol valve 50 is first opened to drain the liquid water stored inside the ethanol valve 50. Then the ethanol valve 50 is closed, and the gaseous ethanol gas is condensed, so that the ethanol gas can be condensed into liquid ethanol and collected inside the ethanol valve 50, thereby reducing the mixing of condensate and liquid ethanol.

[0090] like Figures 1 to 7 As shown, in some embodiments, the control method of the tableware cleaning device 100 further includes: controlling the mixed gas in the receiving cavity to first liquefy water vapor and then liquefy ethanol by controlling the temperature and pressure of the receiving cavity and / or the drying mechanism.

[0091] In this embodiment, the boiling point of ethanol is 78°C, and the boiling point of water is 100°C. This embodiment utilizes the difference in boiling points to first control the temperature at the ethanol switch valve 50 within the range of 78°C-100°C. At this temperature, water vapor condenses into liquid water and is discharged from the ethanol switch valve 50. Then, the temperature at the ethanol switch valve 50 is controlled below 78°C. At this temperature, ethanol gas condenses into liquid ethanol and is stored inside the ethanol switch valve 50.

[0092] Furthermore, the gas pressure at the ethanol switch valve 50 can be controlled by switching the first fan 312, the second fan 322, the third fan 412 and the fourth fan 422, thereby achieving the goal of condensing water vapor first and then condensing ethanol gas by controlling the gas pressure.

[0093] The above operations can reduce the time interference between the heating and vaporization of ethanol and the discharge of condensate, and reduce the mixing of condensate and liquid ethanol at the ethanol switch valve 50.

[0094] like Figure 8 As shown below, taking a dishwasher as an example, the control process of the dishwasher in this application is illustrated through specific embodiments.

[0095] Power on;

[0096] The dishwasher completes the initial washing process (the dishwasher process generally includes: washing - drying - storing).

[0097] After washing, the dish enters the hot rinsing stage (without adding rinsing agent). During this stage, hot water continuously impacts the dishes inside the container, transferring heat to the dishes. When the impact ends, the dishes are still at a high temperature, but a large amount of water film and droplets remain on them.

[0098] The drain pump removes the liquid water that has dripped into the containment chamber;

[0099] The electric heating unit opens the ethanol heating valve 50 (locally heating to around 78°C, with ethanol continuously vaporizing and circulating into the containment chamber, while maintaining the boiling point of ethanol below that of water, thereby separating ethanol and condensate).

[0100] The first solenoid valve 311 and the second solenoid valve 321, as well as the first fan 312 and the second fan 322, are opened to activate the water vapor liquefaction circuit of the semiconductor temperature control device 20. During the circulation of the water vapor liquefaction circuit, ethanol gas will continuously integrate and overflow on the surface of the liquid in the tableware, destroying the high-energy surface of the water, making the residual water to be evaporated more easily and quickly, thus achieving a similar effect to traditional chemical rinsing agents. In addition, ethanol can be recycled and reused, thereby achieving cyclic drying without consumables.

[0101] Simultaneously open the third solenoid valve 411 and the fourth solenoid valve 421, as well as the third fan 412 and the fourth fan 422, to start the air drying circuit of the semiconductor temperature control device 20.

[0102] The system continuously dehumidifies the tableware inside the container cavity through internal circulation, and uses humidity sensor 101 to determine in real time whether the expected humidity value has been reached. If the expected humidity value is met, the system proceeds to the next step; otherwise, it continues to dehumidify the tableware inside the container cavity through internal circulation.

[0103] Turn off the electric heating unit, as well as the first fan 312, the second fan 322, the third fan 412 and the fourth fan 422. The ethanol switch valve 50 is opened to drain the condensate at the bottom of the semiconductor temperature control device 20.

[0104] Close the ethanol switch valve 50, confirm that the electric heating unit is off, and allow the ethanol switch valve 50 to cool to room temperature. Turn on the first fan 312, the second fan 322, the third fan 412, and the fourth fan 422 to perform a secondary internal circulation, liquefying the ethanol vapor in the circulation and recovering the ethanol liquid for reuse.

[0105] Determine whether the ethanol concentration value detected by the ethanol sensor 102 in the containment cavity reaches the expected value;

[0106] When the ethanol concentration in the containment chamber is less than 10 ppb, the first solenoid valve 311 and the second solenoid valve 321 are closed, the semiconductor temperature control device 20 is turned off, and the recovered liquid ethanol is stored for reuse in the next cycle.

[0107] Close the third solenoid valve 411, the fourth solenoid valve 421, and the loads such as the first fan 312, the second fan 322, the third fan 412, and the fourth fan 422;

[0108] Power off.

[0109] Through the above-mentioned tableware cleaning equipment 100 and control methods, the use of a dual circulation system and methods to reduce water surface energy have achieved internal circulation of gas in the cavity and drying without consumables, thus realizing healthy drying and washing of tableware cleaning equipment 100 and enhancing the user experience.

[0110] Thirdly, the present invention provides a computer-readable storage medium storing computer instructions that, when executed, implement the control method of the tableware cleaning device 100 described in the second aspect.

[0111] In this embodiment, the computer-readable storage medium provided in this embodiment, by adopting the control method of the tableware cleaning device 100 of the above-described embodiments, has all the technical effects of the control method of the tableware cleaning device 100 described above. The specific technical effects of the computer-readable storage medium will not be elaborated here.

[0112] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by this application.

Claims

1. A tableware cleaning device, characterized in that, The tableware cleaning device (100) includes: The housing (10) has an internal cavity for accommodating tableware. The drying mechanism includes an air inlet pipe, an air outlet pipe, and a semiconductor temperature control device (20). The air inlet pipe is connected to the air inlet of the receiving cavity, and the air outlet pipe is connected to the air outlet of the receiving cavity. The air inlet pipe and the air outlet pipe are connected through the semiconductor temperature control device (20). An ethanol device is provided within the semiconductor temperature control device (20). This ethanol device is capable of supplying ethanol gas to the receiving cavity via the semiconductor temperature control device (20) during the drying process of the drying mechanism. The ethanol device includes an ethanol switch valve (50) for holding ethanol. The ethanol switch valve (50) is equipped with an electric heating unit, which heats the ethanol switch valve (50) to generate ethanol gas, which flows to the semiconductor temperature control device (20). The semiconductor temperature control device (20) includes a cold end (21) and a hot end (22). The ethanol switch valve (50) is disposed at the cold end (21) and located at the drain port of the semiconductor temperature control device (20). When the ethanol switch valve (50) is in the closed state, the ethanol switch valve (50) forms a receiving tank for containing ethanol. When the ethanol switch valve (50) is in the open state, the ethanol switch valve (50) forms a drain channel for discharging liquefied water at the cold end (21).

2. The tableware cleaning equipment according to claim 1, characterized in that, The air inlet pipe and the air outlet pipe include a first air inlet pipe (31) and a first air outlet pipe (32) that are connected to the cold end (21). The first air inlet pipe (31), the first air outlet pipe (32) and the cold end (21) constitute a water vapor liquefaction circuit. And / or, the air inlet pipe and the air outlet pipe include a second air inlet pipe (41) and a second air outlet pipe (42) connected to the hot end (22), the second air inlet pipe (41), the second air outlet pipe (42) and the hot end (22) forming an air drying circuit.

3. The tableware cleaning equipment according to claim 2, characterized in that, The tableware cleaning device (100) further includes a humidity sensor (101) and an ethanol sensor (102) disposed in the receiving cavity. The tableware cleaning device (100) controls the drying mechanism and the ethanol switching valve (50) based on the humidity information detected by the humidity sensor (101) and the ethanol information detected by the ethanol sensor (102).

4. A control method for a tableware cleaning device, characterized in that, The control method of the tableware cleaning equipment (100) is implemented using the tableware cleaning equipment (100) according to any one of claims 1 to 3, and the control method of the tableware cleaning equipment (100) includes: Obtain the drying command from the tableware cleaning device (100); The drying mechanism of the tableware cleaning equipment (100) is controlled to perform a drying operation, and ethanol gas is introduced into the receiving cavity through the ethanol device of the tableware cleaning equipment (100); The drying gas and the ethanol gas of the drying mechanism are controlled to circulate between the receiving cavity and the drying mechanism; The drying operation is completed by the drying mechanism, and the ethanol device is controlled to stop supplying ethanol gas into the receiving cavity.

5. The control method for the tableware cleaning equipment according to claim 4, characterized in that, The control of the tableware cleaning equipment (100) to perform the drying operation specifically includes: The water vapor liquefaction circuit of the drying mechanism is opened, and the water vapor in the containment cavity flows to the cold end (21) of the semiconductor temperature control device (20) through the water vapor liquefaction circuit to be liquefied; The air drying circuit of the drying mechanism is turned on, and the air in the accommodating cavity flows through the air drying circuit to the hot end (22) of the semiconductor temperature control device (20) for heating, and then flows back to the accommodating cavity.

6. The control method for the tableware cleaning equipment according to claim 5, characterized in that, The specific steps of introducing ethanol gas into the receiving cavity through the ethanol device of the tableware cleaning equipment (100) include: The electric heating unit of the tableware cleaning device (100) is controlled to heat the ethanol switch valve (50) to generate ethanol gas; The ethanol gas is controlled to flow through the water vapor liquefaction circuit to the receiving cavity of the tableware cleaning device (100).

7. The control method for the tableware cleaning equipment according to claim 6, characterized in that, After the drying operation is completed according to the drying mechanism, and the ethanol device is controlled to stop supplying the ethanol gas into the receiving cavity, the following steps are included: Both the water vapor liquefaction circuit and the air drying circuit are kept in the open state. The ethanol switch valve (50) is opened, and the liquefied water at the semiconductor temperature control device (20) is discharged through the ethanol switch valve (50).

8. The control method for the tableware cleaning equipment according to claim 7, characterized in that, After the liquefied water at the semiconductor temperature control device (20) is discharged through the ethanol switch valve (50), it includes: After the liquefied water is discharged from the semiconductor temperature control device (20), the ethanol switch valve (50) is controlled to close. The ethanol gas in the containment cavity is liquefied at the cold end (21) of the semiconductor temperature control device (20) and then converges into the ethanol switching valve (50).

9. The control method for the tableware cleaning equipment according to any one of claims 4 to 8, characterized in that, The control method for the tableware cleaning equipment (100) further includes: By controlling the temperature and pressure of the containment chamber and / or the drying mechanism, the mixed gas in the containment chamber is controlled to first liquefy water vapor, and then liquefy ethanol.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that, when executed, implement the control method of the tableware cleaning device (100) according to any one of claims 4 to 9.

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