Cleaning device

Abstract

The invention discloses cleaning equipment, and belongs to the field of cleaning equipment. The cleaning equipment comprises an inner container, an exhaust assembly, an air duct, a valve, a fan and a heater. A cleaning cavity is formed in the inner container; the exhaust assembly is installed in the inner container and is configured to exhaust gas in the cleaning cavity under the condition that the exhaust assembly is opened. The air duct is installed in the inner container and provided with an air inlet, an air supplement inlet and an air outlet, the air inlet and the air outlet are both communicated with the cleaning cavity, and the air supplement inlet is communicated with the outside; an air door of the valve is pivotally mounted in the air duct between a first position and a second position, the air door seals the air supplement inlet at the first position, and the air door seals the air inlet at the second position; the fan is mounted in the air duct, the air inlet and the air supplement inlet are both communicated with an inlet of the fan, and an outlet of the fan is communicated with the air outlet; and the heater is configured to heat the gas flowing through the air duct under the condition of opening. The utilization rate of hot air heat energy is increased, energy consumption of a hot air drying working mode of the cleaning equipment is reduced, and rapid drying is facilitated.

Description

Technical Field

[0001] This application belongs to the technical field of household appliances, and particularly relates to a cleaning device. Background Art

[0002] The drying methods of cleaning devices such as dishwashers include: condensation drying, hot air drying, adsorption drying, and quick drying by opening the door, etc. Among them, condensation drying has problems such as poor drying effect and long drying time, adsorption drying has problems such as high cost and peculiar smell after long-term storage, and quick drying by opening the door has problems such as easy entry of insects and moisture return due to failure to automatically close the door in a timely manner in humid areas. Therefore, considering the comprehensive cost and drying effect, hot air drying has become the method chosen by most manufacturers.

[0003] Currently, most cleaning devices such as dishwashers rely on an external circulation system for hot air drying. Its working process is as follows: inhale the outside air and heat it using a heater, and the heated outside air is introduced into the cleaning chamber to perform hot air drying on the items in the cleaning chamber. During the hot air drying process, the outside air is inhaled into the cleaning chamber, causing the cleaning chamber to form a positive pressure. In order to maintain the normal pressure of the cleaning chamber, the exhaust component of the cleaning device is usually turned on to reduce the problem of water vapor leakage caused by the positive pressure in the cleaning chamber.

[0004] In the above external circulation drying mode, the opening of the exhaust component will cause the thermal energy of the heated air to be discharged from the cleaning chamber without being fully utilized, resulting in energy waste. In related technologies, there has emerged a cleaning device that uses an internal circulation drying mode for drying, but the working mode is single, and there are still problems such as low drying efficiency and poor drying effect, which need to be improved. Summary of the Invention

[0005] This application aims to at least solve one of the technical problems existing in the prior art. For this reason, this application provides a cleaning device, which improves the utilization rate of hot air thermal energy, reduces the energy consumption of the hot air drying working mode of the cleaning device, and helps to quickly dry, compared with the cleaning device that performs hot air drying through external circulation.

[0006] In the first aspect, this application provides a cleaning device, including:

[0007] An inner container, forming a cleaning chamber;

[0008] An exhaust component, installed in the inner container and configured to discharge the gas in the cleaning chamber when it is turned on; [[ID=X]] [[ID=Y]]

[0009] An air duct, installed in the inner container and having an air inlet, a make-up air inlet, and an air outlet. The air inlet and the air outlet are both communicated with the cleaning chamber, and the make-up air inlet is communicated with the outside;

[0010] A valve, wherein a damper of the valve is pivotally mounted on the air duct between a first position and a second position. In the first position, the damper closes the make-up air inlet, and in the second position, the damper closes the air inlet.

[0011] A fan is installed in the air duct, and both the air inlet and the make-up air inlet communicate with the inlet of the fan. The outlet of the fan communicates with the air outlet.

[0012] A heater is configured to heat the gas flowing through the air duct when it is turned on.

[0013] According to the cleaning device provided by the embodiment of the present application, by providing an air duct and setting a valve at the make-up air inlet of the air duct, multiple working modes such as internal circulation, external circulation, and mixed internal and external circulation of the cleaning device can be realized. On the one hand, when the valve is in the first position, the make-up air inlet is closed, disconnecting the cleaning chamber from the outside world. The cleaning chamber is in the internal circulation working mode. The gas in the cleaning chamber is sucked into the air duct from the air inlet of the air duct by the fan, and the hot air heated by the heater enters the cleaning chamber from the air outlet of the air duct. The dry gas in the cleaning chamber is circularly heated by the heater to realize hot air drying of the tableware in the cleaning chamber. Compared with the cleaning device that performs hot air drying through external circulation, the internal circulation drying working mode improves the utilization rate of hot air heat energy, reduces the energy consumption of the hot air drying working mode of the cleaning device, and realizes energy saving. At the same time, during the cleaning stage, the blocking of the make-up air inlet by the valve can reduce the leakage of water vapor in the cleaning chamber to the outside through the air duct, thereby reducing the condensate between the inner tank and the outer shell of the cleaning device and reducing corrosion and pollution. On the other hand, when the damper is in the second position, the make-up air inlet is opened and the air inlet is closed, and the communication between the cleaning chamber and the outside forms an external circulation. At this time, a complete external circulation is carried out. The make-up air inlet introduces external air into the cleaning chamber, providing sufficient air supplement for the cleaning chamber, which helps the exhaust assembly quickly discharge the evaporated water vapor, achieving a rapid moisture removal effect and contributing to quick drying.

[0014] According to an embodiment of the present application, the cleaning device has an internal circulation drying working mode. In the internal circulation drying working mode, the fan and the heater work, and the exhaust assembly stops operating. The damper is located in the first position.

[0015] And / or, the cleaning device has an external circulation drying working mode. In the external circulation drying working mode, the fan, the heater, and the exhaust assembly all work, and the damper is located in the second position.

[0016] And / or, the cleaning device has a hybrid working mode; in the hybrid working mode, the blower, the heater and the exhaust component all work, the air damper is located between the first position and the second position, and the air flow rate inhaled from the air inlet is ≤ the air flow rate inhaled from the make-up air inlet;

[0017] And / or, the cleaning device has a hybrid dehumidifying working mode; in the hybrid dehumidifying working mode, the blower and the exhaust component both work, and the heater stops operating.

[0018] According to an embodiment of the present application, when the exhaust component is working, the exhaust volume of the exhaust component is not less than the amount of gas entering the cleaning chamber from the outside.

[0019] According to an embodiment of the present application, when the exhaust component and the blower are working, the exhaust volume of the exhaust component is not less than the amount of gas entering the cleaning chamber from the outside.

[0020] According to an embodiment of the present application, the air duct includes:

[0021] An upper air duct, the upper air duct is provided with the air inlet and the make-up air inlet, the blower and the valve are installed in the upper air duct, and at least a part of the upper air duct is installed above the inner tank;

[0022] A lower air duct, the inlet of the lower air duct is connected to the outlet of the upper air duct, and the lower air duct is provided with the air outlet.

[0023] According to an embodiment of the present application, the projection of the make-up air inlet on the top wall of the inner tank is located between the projection of the blower on the top wall of the inner tank and the projection of the air inlet on the top wall of the inner tank.

[0024] According to an embodiment of the present application, the air inlet is arranged downward, and the make-up air inlet is arranged upward.

[0025] According to an embodiment of the present application, the bottom wall of the upper air duct opposite to the make-up air inlet is provided with an inclined first support surface, and at least a part of the periphery of the make-up air inlet is provided with a second support surface. In the second position, the lower surface of the air damper fits with the first support surface and the second support surface.

[0026] According to an embodiment of the present application, the blower includes: an upper shell, an impeller and a motor assembly. The motor assembly is power-coupled to the impeller. The upper shell is connected to the upper air duct to form an accommodation cavity, and the impeller is installed in the accommodation cavity.

[0027] According to an embodiment of the present application, it further includes: a side plate. The heater is installed in the area of the air duct on the side of the inner container. The side plate is installed on the side wall of the inner container and covers the lower air duct, and the inner side surface of the side plate is spaced apart from the lower air duct.

[0028] According to an embodiment of the present application, the power of the heater is P, satisfying: P ≤ 500 W.

[0029] Some of the additional aspects and advantages of the present application will be given in the following description, some will become obvious from the following description, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above and / or additional aspects and advantages of the present application will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0031] Figure 1 is one of the structural schematic diagrams of the cleaning device provided by the embodiment of the present application;

[0032] Figure 2 is another structural schematic diagram of the cleaning device provided by the embodiment of the present application;

[0033] Figure 3 is one of the structural schematic diagrams of the internal circulation component provided by the embodiment of the present application;

[0034] Figure 4 is another structural schematic diagram of the internal circulation component provided by the embodiment of the present application;

[0035] Figure 5 is a partial structural schematic diagram of the internal circulation component provided by the embodiment of the present application;

[0036] Figure 6 is the third structural schematic diagram of the internal circulation component provided by the embodiment of the present application;

[0037] Figure 7 is Figure 6 the first cross-sectional view at N-N in;

[0038] Figure 8 is Figure 6 the second cross-sectional view at N-N in;

[0039] Figure 9 is the fourth structural schematic diagram of the cleaning device provided by the embodiment of the present application;

[0040] Figure 10 is the fifth structural schematic diagram of the cleaning device provided by the embodiment of the present application;

[0041] Figure 11 is Figure 10Partial enlarged view at B in

[0042] Figure 12 Is the sixth structural schematic diagram of the cleaning device provided by the embodiment of the present application;

[0043] Figure 13 Is the seventh structural schematic diagram of the cleaning device provided by the embodiment of the present application;

[0044] Figure 14 Is the eighth structural schematic diagram of the cleaning device provided by the embodiment of the present application;

[0045] Figure 15 Is the fourth structural schematic diagram of the internal circulation component provided by the embodiment of the present application;

[0046] Figure 16 Is the structural schematic diagram of the flexible connector provided by the embodiment of the present application;

[0047] Figure 17 Is the structural schematic diagram of the lower air duct provided by the embodiment of the present application;

[0048] Figure 18 Is the structural schematic diagram of the upper air duct provided by the embodiment of the present application;

[0049] Figure 19 Is the structural schematic diagram of the main body provided by the embodiment of the present application;

[0050] Figure 20 Is the ninth structural schematic diagram of the cleaning device provided by the embodiment of the present application;

[0051] Figure 21 Is Figure 20 Partial enlarged view at D in

[0052] Figure 22 Is the tenth structural schematic diagram of the cleaning device provided by the embodiment of the present application;

[0053] Figure 23 Is Figure 22 Partial enlarged view at C in

[0054] Figure 24 Is the eleventh structural schematic diagram of the cleaning device provided by the embodiment of the present application;

[0055] Figure 25 Is Figure 24 Partial enlarged view at E in

[0056] Figure 26 Is the first structural schematic diagram of the water baffle provided by the embodiment of the present application;

[0057] Figure 27 Is the second structural schematic diagram of the water baffle provided by the embodiment of the present application;

[0058] Figure 28 It is the third schematic structural view of the water baffle provided by the embodiment of the present application;

[0059] Figure 29 It is the fourth schematic structural view of the water baffle provided by the embodiment of the present application;

[0060] Figure 30 It is the fifth schematic structural view of the water baffle provided by the embodiment of the present application;

[0061] Figure 31 It is the sixth schematic structural view of the water baffle provided by the embodiment of the present application.

[0062] Reference numerals:

[0063] Inner liner 1, cleaning chamber 11, first side surface 111, second side surface 112; top wall 12, side wall 13, back plate 14, front end opening 15, bottom wall 16;

[0064] Inner circulation component 2, air inlet end 20, flanging 201, air duct 21, air inlet 211, air outlet 212, air supply branch 213, air supply inlet 2131, second support surface 21311;

[0065] Upper air duct 214, first support surface 2144, horizontal section 2141, lower connection section 2142, first connection structure 2143; fan installation position 2146, first air guiding section 2147, volute tongue 2148, arc section 21481, straight section 21482; second air guiding section 2149;

[0066] Lower air duct 215, expansion section 2154, partition plate 2155, grille 2156; main body part 2158, upper connection section 21581, air duct shell 21582, third connection structure 21583, heat spreader 21584, heater installation position 21585, thermostat installation position 21586, cover body 2157, fourth connection structure 21571;

[0067] Flexible connecting piece 217, cover plate 2171, second connection structure 21711, sleeve 2172, avoidance hole 2173;

[0068] Fan 22, upper shell 221, impeller 222; heater 23, water baffle 24, water baffle plate 241, annular rib 2411, installation structure 242, clamping groove 2421, connecting piece 2422, hollow groove 24221, clamping joint 2423; main cover body 243, pipe body 2431, ventilation duct 2432, flange 2433, sealing installation position 24331, protruding part 24332, reinforcing rib 24333, water guiding port 2434; water blocking piece 244, first plate 2441, second plate 2442, water guiding surface 2443;

[0069] Sealing device 25, valve 26, air damper 261; driving mechanism 27; transmission mechanism 28; thermostat 29;

[0070] Side plate 3, exhaust assembly 4, air inlet 41, bowl basket 5. Detailed implementation manners

[0071] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation of the present application.

[0072] Below, with reference to Figures 1 - 31 A cleaning device according to an embodiment of the present application will be described. The cleaning device of the present application can clean and dry various items such as tableware or clothes.

[0073] Among them, the cleaning device can be a device with a hot air drying function such as a dishwasher, a clothes dryer or a shoe washing machine. In the embodiments of the present application, the cleaning device includes a cleaning function and a hot air drying function. The cleaning mechanism in the cleaning function cleans the items in the cleaning chamber, and after the cleaning is completed, the hot air drying process starts, and drying the items in the cleaning chamber can reduce the growth of bacteria. For the convenience of description, the present application will be described by taking a dishwasher as an example.

[0074] As Figure 1 、 Figure 4 and Figure 5 shown, the cleaning device of the embodiment of the present application includes: an inner container 1, an exhaust assembly 4, an air duct 21, a valve 26, a fan 22 and a heater 23.

[0075] The inner container 1 forms a cleaning chamber 11; the exhaust assembly 4 is installed in the inner container 1 and is configured to discharge the gas in the cleaning chamber 11 when it is opened; the air duct 21 is installed in the inner container 1, and the air duct 21 has an air inlet 211, a makeup air inlet 2131 and an air outlet 212. Both the air inlet 211 and the air outlet 212 are communicated with the cleaning chamber 11, and the makeup air inlet 2131 is communicated with the outside; the air damper 261 of the valve 26 is pivotally installed on the air duct 21 between a first position and a second position. In the first position, the air damper 261 closes the makeup air inlet 2131, and in the second position, the air damper 261 closes the air inlet 211; the fan 22 is installed on the air duct 21, and both the air inlet 211 and the makeup air inlet 2131 are communicated with the inlet of the fan 22, and the outlet of the fan 22 is communicated with the air outlet 212; the heater 23 is configured to heat the gas flowing through the air duct 21 when it is opened.

[0076] Among them, as Figure 1As shown in the figure, the inner container 1 includes a top wall 12, a bottom wall 16, a back plate 14, side walls 13, and a front opening 15. The top wall 12, bottom wall 16, back plate 14, and side walls 13 of the inner container 1 enclose a cleaning chamber 11. The top wall 12 of the inner container 1 is the top wall 12 of the cleaning chamber 11, the side walls 13 of the inner container 1 are the sides of the cleaning chamber 11, the back plate 14 of the inner container 1 is the back of the cleaning chamber 11, and the bottom wall 16 of the inner container 1 is the bottom surface of the cleaning chamber 11.

[0077] The cleaning device may further include a cover plate, which is pivotally connected to the inner container 1. The cover plate can rotate relative to the inner container 1 to open and close the front opening 15 of the inner container 1, facilitating the placement or removal of items into or from the cleaning chamber 11. The cover plate, together with the top wall 12, bottom wall 16, back plate 14, and side walls 13 of the inner container 1, encloses the cleaning chamber 11.

[0078] The cleaning chamber 11 is used to place items to be cleaned. The items to be cleaned can be washed and dried in the cleaning chamber 11. The items to be cleaned can be tableware such as bowls, chopsticks, plates, and pots.

[0079] As Figure 1 shown, the cleaning chamber 11 may have an item placement rack. The item placement rack may include brackets such as a bowl basket 5, a chopstick rack, and a cup rack. The item placement rack can fix and support the tableware, and at the same time can also divide the space of the cleaning chamber 11, increasing the space utilization rate of the cleaning chamber 11.

[0080] The cleaning chamber 11 may also have a spray arm. The spray arm is used to spray high-pressure water flow. The high-pressure water flow can spray and flush the tableware in the cleaning chamber 11 to wash off the dirt attached to the tableware, thereby realizing the flushing of the tableware. Multiple spray arms can be provided, and the multiple spray arms can be installed at different positions in the cleaning chamber 11 to spray the tableware in multiple directions, at multiple angles, and at multiple levels, improving the cleaning effect of the tableware.

[0081] Among them, the air duct 21 can be used to realize the circulation of air in the cleaning chamber 11. For example, it can realize internal air circulation, external air circulation, or a mixture of internal and external air circulation. The air duct 21 can be installed on the outside or inside of the inner container 1. The air duct 21 can be connected to the wall surface of the inner container 1 by means of snap connection, threaded connection, or welding.

[0082] The air duct 21 has an air inlet 211 and an air outlet 212 communicating with the cleaning chamber 11. The gas in the cleaning chamber 11 is sucked into the air duct 21 from the air inlet 211 of the air duct 21 by the fan 22, and the hot air heated by the heater 23 enters the cleaning chamber 11 from the air outlet 212 of the air duct 21, forming an internal circulation. The hot air can hot-air dry the tableware and other items in the cleaning chamber 11.

[0083] The air make-up inlet 2131 of the air duct 21 is in communication with the outside. The gas from the outside is drawn into the air duct 21 by the fan 22. The gas from the outside can enter the cleaning chamber 11 after being heated by the heater 23 through the air outlet 212 of the air duct 21, or can directly enter the cleaning chamber 11 to balance the air pressure in the cleaning chamber 11 and reduce the vacuum degree in the cleaning chamber 11.

[0084] As Figure 1 shown, by setting the air inlet 211, the air make-up inlet 2131 and the air outlet 212 of the air duct 21, the external circulation and / or internal circulation of the cleaning chamber 11 can be realized to achieve various working modes of the cleaning device.

[0085] During the operation of only the fan 22, in order to maintain the balance of the pressure in the cleaning chamber 11, the fan 22 will preferably only draw the air in the cleaning chamber 11 to realize the basic internal circulation. At this time, the air volume of the internal circulation is much larger than that of the external circulation, so that the temperature and humidity in the cleaning chamber 11 can be quickly increased; when the fan 22 and the exhaust component 4 work simultaneously, the exhaust component 4 draws and discharges the air in the cleaning chamber 11. At this time, the fan 22 will mainly introduce the external air, and a small amount of the air in the chamber is sucked in for circulation. At this time, the internal and external circulations are carried out simultaneously, which can effectively meet the rapid dehumidification requirement during the dehumidification stage.

[0086] In the related art, the single internal circulation scheme helps to circulate and heat the gas to be dried in the cleaning chamber 11 and reach a suitable temperature. However, the single internal circulation scheme also requires the exhaust component 4 to gradually discharge the evaporated water vapor. During the discharge stage, the introduction of external gas is lacking, and the exhaust component 4 will gradually draw the cleaning chamber 11 into a negative pressure, which causes the gradual decrease of the exhaust rate, resulting in the overall dehumidification rate of the cleaning device not being well improved.

[0087] In the present application, by setting the air make-up inlet 2131 of the air duct 21 in communication with the outside, the air pressure balance in the cleaning chamber 11 can be maintained through the air make-up inlet 2131 when the exhaust component 4 works, and the vacuum degree in the cleaning chamber 11 can be reduced, so that a relatively high exhaust rate can be maintained, the water vapor in the cleaning chamber 11 can be quickly discharged, the overall dehumidification rate and drying rate of the cleaning device can be improved, and the energy consumption of hot air drying can be further reduced.

[0088] In this embodiment, the air inlet 211, the air make-up inlet 2131 and the air outlet 212 can be located on the same wall surface of the inner container 1, or can be located on different wall surfaces of the inner container 1, which is specifically set according to the use scenario. The number and ventilation area of the air inlet 211, the air make-up inlet 2131 and the air outlet 212 of the air duct 21 can be set according to the specific use scenario.

[0089] Among them, the inlet of the blower 22 is communicated with the air inlet 211 of the air duct 21, and the outlet of the blower 22 is communicated with the air outlet 212 of the air duct 21, so as to drive the gas in the air duct 21 through the blower 22.

[0090] The blower 22 drives the gas in the air duct 21 to flow from the air inlet 211 of the air duct 21 to the air outlet 212 of the air duct 21, that is, the gas in the cleaning chamber 11 is drawn into the air duct 21 by the blower 22, heated by the heater 23 and then driven by the blower 22 to be discharged from the air duct 21 into the cleaning chamber 11, forming an internal circulation.

[0091] The blower 22 is installed in the air duct 21, and the blower 22 can be connected to the air duct 21 by means of snap connection, threaded connection or plugging and unplugging, etc. The blower 22 can be installed at the air inlet 211, the air outlet 212 of the air duct 21 or between the air inlet 211 and the air outlet 212. The blower 22 can be a centrifugal air supply device, an exhaust fan or a ventilation air supply device and other devices capable of driving gas flow.

[0092] The blower 22 is communicated with the air inlet 211 and the make-up air inlet 2131 of the air duct 21, so that when the blower 22 is turned on, the gas in the cleaning chamber 11 and / or the outside gas is drawn into the air duct 21, and is discharged from the outlet of the blower 22 into the air outlet 212 of the air duct 21 and then into the cleaning chamber 11 under the drive of the blower 22.

[0093] In the drying working mode of the cleaning device, the dry gas in the cleaning chamber 11 is circularly heated by the heater 23 and reaches a suitable temperature and humidity to perform hot air drying on the tableware in the cleaning chamber 11.

[0094] Among them, the heater 23 can adopt heating methods such as electromagnetic heating, infrared heating or resistance heating to heat the gas flowing through the air duct 21. The heater 23 adopting resistance heating can be a PTC (Positive Temperature Coefficient) heating device, a resistance wire heating device or a resistance coil heating device, etc.

[0095] When the heater 23 is turned on, it heats the gas flowing through the air duct 21. The heater 23 can be installed in the air duct 21 to contact the gas flowing through the air duct 21 for direct contact heat exchange; the heater 23 can also be installed outside the air duct 21 and indirectly exchange heat with the gas flowing through the air duct 21 by heating the pipe wall of the air duct 21.

[0096] In this embodiment, the blower 22 and the heater 23 form an internal circulation assembly 2 of the cleaning device. The internal circulation assembly 2 is used for circularly heating the gas in the cleaning chamber 11 and providing the heat required for drying the tableware and the air flow speed required for convection.

[0097] Among them, the exhaust component 4 is a related component capable of creating normal or negative pressure in the cleaning chamber 11. The exhaust component 4 can be a fluid machine with an exhaust function such as a suction fan 22 or an air pump. When the cleaning chamber 11 is performing hot air drying, the exhaust component 4 is used to discharge the evaporated or volatilized water vapor in the cleaning chamber 11 together with the gas, so as to reduce the relative humidity of the air in the cleaning chamber 11, which is beneficial to the evaporation of more residual water.

[0098] Among them, the air outlet 212 of the air duct 21 is used to discharge the gas heated by the heater 23 into the cleaning chamber 11. The air inlet 41 of the exhaust component 4 is communicated with the cleaning chamber 11, and the air inlet 41 of the exhaust component 4 is used to discharge the evaporated or volatilized water vapor in the cleaning chamber 11 together with the gas out of the cleaning chamber 11.

[0099] The gas heated by the heater 23 is discharged into the cleaning chamber 11 from the air outlet 212 of the air duct 21. At least part of the hot air is discharged out of the cleaning chamber 11 together with the water vapor from the air inlet 41 of the exhaust component 4. The flow path of at least part of the hot air is from the air outlet 212 of the air duct 21 to the air inlet 41 of the exhaust component 4.

[0100] Among them, the internal circulation component 2 and the exhaust component 4 can be operated in a common opening or separate opening mode.

[0101] When only the internal circulation component 2 is operating, the air in the cleaning chamber 11 is circulated and heated, and the heat is also evenly distributed. The cooler areas in the cleaning chamber 11 can be evaporated and dried faster through heat transfer and convective heat transfer, which is beneficial to the drying of the entire cavity in the cleaning chamber 11 and reduces the drying dead corners.

[0102] When only the exhaust component 4 is working, due to the lack of external air supplement, the cleaning chamber 11 is pumped into a negative pressure state by the exhaust component 4, and the negative pressure environment also helps to improve the drying rate.

[0103] When the internal circulation component 2 and the exhaust component 4 work simultaneously, the fan 22 can circulate the air in the cleaning chamber 11, making the temperature and humidity distribution in the cleaning chamber 11 uniform, and further improving the effect of uniform drying of the entire cavity.

[0104] Among them, the valve 26 can be an active valve 26 or a passive valve 26. In the active valve 26, the valve 26 can drive the damper 261 to rotate between a first position and a second position by means of an external energy source. In the passive valve 26, the valve 26 can drive the damper 261 to rotate between a first position and a second position by using its own weight and / or pressure difference.

[0105] The damper 261 of the valve 26 is used to control the connection or disconnection between the cleaning chamber 11 and the outside, and the connection or disconnection between the air inlet 211 and the cleaning chamber 11, such as Figure 7As shown, when the air damper 261 is in the first position, the make-up air inlet 2131 is closed, the cleaning chamber 11 is disconnected from the outside, and the cleaning chamber 11 operates in an internal circulation mode; as Figure 8 As shown, when the air damper 261 is in the second position, the make-up air inlet 2131 is opened, the air inlet 211 is blocked, the cleaning chamber 11 is communicated with the outside, and the cleaning chamber 11 can operate in a pure external circulation mode; when the air damper 261 is between the first position and the second position, the make-up air inlet 2131 is opened, the air inlet 211 is opened, the cleaning chamber 11 is communicated with the outside, and the cleaning chamber 11 can operate in a working mode of mixing internal circulation and external circulation.

[0106] The valve 26 can be opened and closed according to the pressure difference between the cleaning chamber 11 and the outside and / or the working mode of the cleaning device. The valve 26 can be a fluid valve such as a gate valve, a globe valve or a butterfly valve.

[0107] According to the cleaning device provided by the embodiment of the present application, by providing the air duct 21 and arranging the valve 26 at the make-up air inlet 2131 of the air duct 21, various working modes such as internal circulation, external circulation and mixed internal and external circulation of the cleaning device can be realized. On the one hand, when the valve 26 is in the first position, the make-up air inlet 2131 is closed, the cleaning chamber 11 is disconnected from the outside, the cleaning chamber 11 is in an internal circulation working mode, the gas in the cleaning chamber 11 is sucked into the air duct 21 from the air inlet 211 of the air duct 21 by the fan 22, and the hot air heated by the heater 23 enters the cleaning chamber 11 from the air outlet 212 of the air duct 21. The dry gas in the cleaning chamber 11 is circularly heated by the heater 23 to realize hot air drying of the tableware in the cleaning chamber 11. Compared with the cleaning device that performs hot air drying through external circulation, the internal circulation drying working mode improves the utilization rate of hot air heat energy, reduces the energy consumption of the hot air drying working mode of the cleaning device, and realizes energy saving; at the same time, during the cleaning stage, the blocking of the make-up air inlet 2131 by the valve 26 can reduce the leakage of water vapor in the cleaning chamber 1 to the outside through the air duct 21, thereby reducing the condensed water between the inner tank 1 and the outer shell of the cleaning device and reducing corrosion and pollution; on the other hand, when the air damper 261 is in the second position, the make-up air inlet 2131 is opened, the air inlet 211 is closed, and the cleaning chamber 11 is communicated with the outside to form an external circulation. At this time, a complete external circulation is performed, and the make-up air inlet 2131 introduces outside air into the cleaning chamber 11 to provide sufficient air supplement for the cleaning chamber 11, which helps the exhaust assembly to quickly discharge the evaporated water vapor, achieves the effect of quickly discharging moisture, and helps to quickly dry.

[0108] In some embodiments, such as Figure 1 and Figure 2As shown, the air duct 21 includes a make-up air branch 213. The make-up air inlet 2131 of the make-up air branch 213 communicates with the outside, and the make-up air outlet of the make-up air branch 213 communicates with the cleaning chamber. When the exhaust component and the fan 22 are operating, the exhaust volume of the exhaust component 4 is not less than the air supply volume of the make-up air branch.

[0109] Among them, the air duct 21 includes two branches of an internal circulation and an external circulation. The make-up air inlet 2131 of the make-up air branch 213 communicates with the outside, and the make-up air outlet of the make-up air branch 213 communicates with the cleaning chamber. The setting of the make-up air branch 213 forms an external circulation branch of the cleaning chamber; the branch with an air inlet 211 and an air outlet 212 communicating with the cleaning chamber belongs to the internal circulation branch, as Figure 3 shown in the figure, the hollow arrow represents the external circulation, and the solid arrow represents the internal circulation.

[0110] By setting the make-up air branch 213, the external circulation and / or internal circulation of the cleaning chamber can be realized to achieve multiple working modes of the cleaning device.

[0111] In some embodiments, the valve 26 can be an active valve 26, and the valve 26 has a driving mechanism 27. The valve 26 is opened or closed by means of the external energy of the driving mechanism 27.

[0112] In this embodiment, as Figure 3 shown, the valve 26 includes: a damper 261 and a driving mechanism 27. The damper 261 is pivotally mounted on the air duct 21 between a first position and a second position; the driving mechanism 27 is power-coupled to the damper 261.

[0113] Among them, the driving mechanism 27 is used to drive the damper 261 to rotate. The driving mechanism 27 has various types, and a suitable driving mechanism 27 can be selected according to the actual situation.

[0114] For example, the driving mechanism 27 can be a driving device such as a wax motor or a stepping motor, and can be connected to the damper 261 through a motor shaft, and the damper 261 is rotated by the rotation of the motor; alternatively, the driving mechanism 27 can be a pneumatic drive: the pneumatic driving mechanism 27 uses the thrust or suction force generated by the air pressure difference to cause the damper 261 to rotate; alternatively, the driving mechanism 27 can be a hydraulic drive, and a driving force is generated by hydraulic components such as a hydraulic cylinder and a hydraulic motor to cause the damper 261 to rotate.

[0115] Among them, the damper 261 can be a baffle with an adjustable opening angle, and the air flow rate is controlled by adjusting the opening angle of the baffle.

[0116] The damper 261 rotates between a first position and a second position to open or close the make-up air inlet 2131 and the air inlet 211, and the area of the damper 261 is not less than the ventilation areas of the make-up air inlet 2131 and the air inlet 211.

[0117] By providing an active valve 26 with a driving device, the air damper 261 can be controlled to rotate between a first position and a second position as needed to meet various requirements. At the same time, the active valve 26 can also achieve automatic control through components such as sensors, improving the intelligence level of the cleaning device.

[0118] In some embodiments, as Figure 3 shown, the valve 26 has a transmission mechanism 28, and the input end of the transmission mechanism 28 is power-coupled to the output end of the driving mechanism 27; the valve 26 is power-coupled to the output end of the transmission mechanism 28.

[0119] In some embodiments, as Figure 6 shown, the valve 26 is pivotally mounted on the upper air duct 214. The bracket is pivotally connected to the valve 26, and the axis of rotation between the bracket and the valve 26 is parallel and spaced apart from the axis of rotation between the valve 26 and the upper air duct 214.

[0120] Among them, the slider, the bracket and the valve 26 form a crank-slider mechanism. The driving mechanism 27 drives the valve 26 to rotate by driving the slider to translate in the upper air duct 214, so that the valve 26 rotates between the positions of the make-up air inlet 2131 or the air inlet 211, thereby selectively closing the make-up air inlet 2131 and the air inlet 211.

[0121] In some embodiments, as shown in the figure, as Figure 7 shown, the valve 26 includes: an air damper 261, a valve shaft and a pull rod.

[0122] The air damper 261 can selectively close the make-up air inlet 2131 and the air inlet 211; the valve shaft is connected to the air damper 261 and is pivotally mounted on the upper air duct 214; the pull rod is connected to the air damper 261, and the bracket is pivotally connected to the pull rod.

[0123] Among them, the air damper 261 can be a baffle with an adjustable opening angle. By adjusting the opening angle of the baffle, the air flow rate can be controlled. By providing the air damper 261, the make-up air inlet 2131 or the air inlet 211 can be closed.

[0124] The area of the air damper 261 is not less than the ventilation areas of the make-up air inlet 2131 and the air inlet 211.

[0125] Among them, the valve shaft acts as a pivot shaft, and the air damper 261 is pivotally connected to the upper air duct 214 through the valve shaft.

[0126] Both ends of the valve shaft can be pivotally connected to the upper air duct 214, and / or the part of the valve shaft between the two ends can be pivotally connected to the upper air duct 214, which can be specifically set according to the installation scenario of the air duct 21 assembly.

[0127] The pull rod is used to connect the air damper 261 and the bracket, and the driving force of the driving mechanism 27 is sequentially transmitted to the air damper 261 along the slider, the bracket, the pull rod and the valve shaft.

[0128] In some embodiments, as Figure 3 shown, the air duct 21 includes: an upper air duct 214 and a lower air duct 215.

[0129] The upper air duct 214 is provided with an air inlet 211 and a make-up air inlet 2131. The fan 22 and the valve 26 are installed in the upper air duct 214, and at least a part of the upper air duct 214 is installed above the inner tank 1; the inlet of the lower air duct 215 is connected to the outlet of the upper air duct 214, and the lower air duct 215 is provided with an air outlet 212.

[0130] Wherein, the lengths of the upper air duct 214 and the lower air duct 215 can be set according to the height of the cleaning device to adapt to cleaning devices of different heights.

[0131] Wherein, the upper air duct 214 can be entirely arranged above the inner tank 1, and the inlet of the lower air duct 215 extends above the inner tank 1 and is connected to the outlet of the upper air duct 214; or, a part of the upper air duct 214 can be arranged above the inner tank 1, and part of it is bent and extended to the side wall 13 of the inner tank 1, and the lower air duct 215 is arranged on the side wall 13 of the inner tank 1; or, both the upper air duct 214 and the lower air duct 215 are arranged above the inner tank 1.

[0132] In some embodiments, a part of the upper air duct 214 can be arranged above the inner tank 1. The air inlet 211 and the make-up air inlet 2131 are arranged on the part of the upper air duct 214 located above the inner tank 1, and the fan 22 and the valve 26 are arranged on the part of the upper air duct 214 located above the inner tank 1. Due to the action of gravity, it can reduce the entry of water vapor into the air duct 21, the fan 22 and the heater 23 through the air inlet 211, and play a protective role for them.

[0133] In some embodiments, as Figure 7 and Figure 8 shown, the projection of the make-up air inlet 2131 on the top wall 12 of the inner tank 1 is located between the projection of the fan 22 on the top wall 12 of the inner tank 1 and the projection of the air inlet 211 on the top wall 12 of the inner tank 1.

[0134] Wherein, the projection of the fan 22 on the top wall 12 of the inner tank 1 and the projection of the air inlet 211 on the top wall 12 of the inner tank 1 are spaced apart, that is, the fan 22 and the air inlet 211 are misaligned, reducing the direct spraying and sputtering of the fan 22 by the water flow flowing in from the air inlet 211 and improving the reliability.

[0135] Among them, the projection of the make-up air inlet 2131 on the top wall 12 of the inner tank 1 is adjacent to the projection of the air inlet 211 on the top wall 12 of the inner tank 1, that is, the make-up air inlet 2131 is adjacent to the air inlet 211, which is convenient for the valve 26 to close the make-up air inlet 2131 with the air door 261 in the first position and close the air inlet 211 with the air door 261 in the second position.

[0136] Among them, one of the make-up air inlet 2131 and the air inlet 211 is located in the first position, and the other of the make-up air inlet 2131 and the air inlet 211 is located in the second position. The first position and the second position are on the rotation path of the air door 261 of the valve 26 rotating around the pivot axis.

[0137] In some embodiments, such as Figure 7 and Figure 8 as shown, the air inlet 211 is arranged downward, and the make-up air inlet 2131 is arranged upward, so that the air door 261 of the valve 26 can control the opening and closing of the air inlet 211 and the make-up air inlet 2131 when rotating around the pivot axis.

[0138] Among them, the air inlet 211 is arranged downward, and the inner wall of the upper air duct 214 is opposite to the air inlet 211. When the gas in the cleaning chamber 11 enters the air duct 21 from the air inlet 211, the flow direction required is bent, which plays a role in blocking the water flow, reduces the direct spraying and sputtering of the water flow flowing into the air inlet 211 on the fan 22, reduces the amount of water flow entering the air duct 21, and improves the reliability.

[0139] In some embodiments, such as Figure 7 and Figure 8 as shown, the upper air duct 214 is provided with an inclined first support surface 2144 on the bottom wall 16 opposite to the make-up air inlet 2131, and at least part of the periphery of the make-up air inlet 2131 is provided with a second support surface 21311. In the second position, the lower surface of the air door 261 is attached to the first support surface 2144 and the second support surface 21311.

[0140] In this embodiment, the air door 261 closes the make-up air inlet 2131 in the first position and closes the air inlet 211 in the second position. The first support surface 2144 and the second support surface 21311 play a limiting role on the air door 261, restricting the rotation of the air door 261 in the direction close to the air inlet 211.

[0141] In some embodiments, the driving mechanism 27 includes a wax motor.

[0142] In actual use, such as Figure 7As shown, when the input end of the control rod of the wax motor drives the air damper 261 to rotate to the first position to close the upper air make-up inlet 2131, the cleaning device is in a completely internal circulation state at this time. The air in the cleaning chamber 11 is sucked into the upper air duct 214 along the arrow direction in the figure and circulates for heating, and returns to the cleaning chamber 11 through the lower air duct 215 and the air outlet 212. This state is suitable for the time period when the cleaning chamber 11 urgently needs to be quickly heated and evaporated during the drying and storage processes. During this time period, the exhaust component 4 does not work, which helps to deeply evaporate the whole cavity and reduce the drying dead angle.

[0143] As Figure 8 shown, when the input end of the control rod of the wax motor drives the air damper 261 to rotate along the rotation axis to the second position, the air damper 261 closes the air inlet 211. At this time, the air make-up inlet 2131 above the upper air duct 214 is opened to achieve a completely external circulation. The air make-up inlet 2131 introduces external air and enters the cleaning chamber 11 through the lower air duct 215, providing sufficient air supplement for the cleaning chamber 11, which helps the exhaust component 4 to quickly discharge the evaporated water vapor, achieving the effect of quickly discharging moisture and helping to quickly dry.

[0144] In some embodiments, as Figure 10 shown, the air inlet 211 is located on the top wall 12 of the cleaning chamber 11 and close to the back plate 14, that is, the center of the air inlet 211 is located in the rear half of the whole cleaning device, which can reduce the influence of the air inlet 211 on the pushing and pulling of the bowl basket 5, so as to increase the depth of the bowl basket 5 and improve the accommodation capacity of the bowl basket 5.

[0145] In some embodiments, as Figure 9 shown, the air inlet 211 of the air duct 21 is arranged in the area of the top wall 12 of the cleaning chamber 11 close to the side surface and the back plate 14.

[0146] In this embodiment, the air inlet 211 of the air duct 21 is located at the rear corner of the top wall 12 of the cleaning chamber 11, which can further reduce the influence of the air inlet 211 on the pushing and pulling of the bowl basket 5, so as to increase the depth and width of the bowl basket 5 and improve the accommodation capacity of the bowl basket 5.

[0147] In some embodiments, when the exhaust component 4 is working, the exhaust volume of the exhaust component 4 is not less than the gas volume entering the cleaning chamber 11 from the outside.

[0148] It should be noted that in actual use, it is impossible to achieve a completely airtight cleaning chamber 11, and there is still a small amount of gas exchange between the cleaning chamber 11 and the outside. When the exhaust volume of the exhaust component 4 is not less than the gas volume entering the cleaning chamber 11 from the outside, the cleaning chamber 11 is in an atmospheric pressure or negative pressure environment, and the negative pressure environment helps to improve the drying rate.

[0149] In this embodiment, when only the exhaust component 4 is working, since the amount of outside air replenishment is less than or equal to the exhaust volume of the exhaust component 4, the cleaning chamber 11 is evacuated to a negative pressure state by the exhaust component 4, and the negative pressure environment helps to improve the drying rate. When the internal circulation component 2 and the exhaust component 4 work simultaneously, the fan 22 can circulate the air in the cleaning chamber 11, making the temperature and humidity distribution in the cleaning chamber 11 uniform, and further improving the effect of uniform drying of the entire chamber.

[0150] In some embodiments, when the exhaust component 4 and the fan 22 are working, the exhaust volume of the exhaust component 4 is not less than the amount of gas entering the cleaning chamber 11 from the outside.

[0151] In the related art, the single internal circulation scheme helps to circulate and heat the gas to be dried in the cleaning chamber 11 and reach a suitable temperature. However, the single internal circulation scheme also requires the exhaust component 4 to gradually discharge the evaporated water vapor. During the discharge stage, without the introduction of outside gas, the exhaust component 4 will gradually evacuate the cleaning chamber 11 to a negative pressure, and the negative pressure causes a gradual decrease in the exhaust rate, resulting in the overall moisture discharge rate of the cleaning equipment not being well improved.

[0152] In this embodiment, when the exhaust volume of the exhaust component 4 is not less than the amount of gas entering the cleaning chamber 11 from the outside, the cleaning chamber 11 is in an atmospheric pressure or negative pressure environment, and the negative pressure environment helps to improve the drying rate.

[0153] When the fan 22 and the exhaust component 4 work simultaneously, the fan 22 can circulate the air in the cleaning chamber 11, and the exhaust component 4 extracts and discharges the air in the cleaning chamber 11. At this time, the fan 22 mainly introduces outside air, and a small amount of air in the chamber is inhaled for circulation. At this time, both internal and external circulation are carried out simultaneously, which can improve the speed of moisture discharge in the cleaning chamber 11, meet the requirement of rapid moisture discharge, and further improve the effect of uniform drying of the entire chamber.

[0154] In some embodiments, as shown in the figure, the cleaning chamber has a first side 111 and a second side 112 arranged opposite to each other. The air outlet 212 is located on the second side 112, and the distance from the center of the air inlet 211 to the second side 112 is less than the distance from the center of the air inlet 211 to the first side 111.

[0155] In this embodiment, as Figure 2 and Figure 9 shown, the exhaust component 4 can be installed on the first side 111. The exhaust component 4 and the air outlet 212 are respectively located on the first side 111 and the second side 112 arranged opposite to each other. The air inlet 211 is located close to the second side 112 where the air outlet 212 is located, that is, the air inlet 211 is far from the exhaust component 4.

[0156] By arranging the exhaust component 4 and the air outlet 212 on the relatively arranged sides, and setting the air inlet 211 away from the exhaust component 4, when the exhaust component 4 and the fan 22 work simultaneously, the flow path of the gas heated by the heater 23 in the cleaning chamber can be extended, the utilization efficiency of the hot air thermal energy can be improved, the energy consumption of the hot air drying working mode of the cleaning device can be reduced, energy conservation can be achieved, and at the same time, the uniformity of gas mixing in the cleaning chamber can be improved, and the drying dead angle can be reduced.

[0157] In some embodiments, as Figure 11 shown, the fan 22 includes: an upper shell 221, an impeller 222 and a motor assembly. The motor assembly is power-coupled to the impeller 222. The upper shell 221 is connected to the upper air duct 214 to form a receiving cavity, and the impeller 222 is installed in the receiving cavity.

[0158] The upper air duct 214 includes a bottom shell. There is a fan 22 installation position in the air duct 21 that matches the size of the upper shell 221. The upper shell 221 is connected to the bottom shell of the upper air duct 214 to form a receiving cavity. The fan 22 can only retain the upper shell 221, the impeller 222 and the motor assembly. The bottom shell of the upper air duct 214 functions as the lower shell of the fan 22. Through the structure of assembling the fan 22 and the upper air duct 214, the installation space of the fan 22 can be increased, and the power of the fan 22 that can be installed can be improved.

[0159] In this embodiment, the fan 22 is installed in the upper air duct 214. The fan 22 can only retain the upper shell 221, the impeller 222 and the motor assembly, and the original lower shell of the fan 22 is omitted, reducing the overall size of the fan 22. A larger model of the fan 22 can be installed in the same space. Moreover, the upper air duct 214 replaces the lower shell of the fan 22, and the impeller 222 is directly installed in the upper air duct 214, increasing the air inlet area of the air inlet 211 and increasing the air intake volume.

[0160] In some embodiments, as Figure 11 shown, a sealing device 25 is provided between the fan 22 and the upper air duct 214. The sealing device 25 can be an O-ring, tape or filling glue, etc., to seal the gaps between the inner tank 1, the fan 22 and the upper air duct 214 of the cleaning device.

[0161] At the same time, the entire impeller 222 and the motor assembly are wrapped between the upper air duct 214 and the upper shell 221 of the fan 22, and a sealing method is adopted in the middle. During the operation of the entire cleaning device, the inner tank 1, the fan 22 and the upper air duct 214 of the cleaning device belong to a closed space, which can reduce the amount of water vapor leaking out through the installation gap between the fan 22 and the upper air duct 214 at each stage and reduce potential hazards.

[0162] In some embodiments, sealing devices 25 and nuts are provided at both the air inlet 211 and the air outlet 212 of the air duct 21. The nuts are tightened in a snap - fit form to compress the sealing devices 25. The sealing devices 25 are located between the air duct 21 and the inner tank 1, reducing the leakage of water in the cleaning chamber 11 from the gap between the air duct 21 and the inner tank 1, reducing the risk of water leakage, and improving the reliability of the cleaning device.

[0163] In some embodiments, such as Figure 12 and Figure 13 shown, the cleaning device further includes: a side plate 3. The heater 23 is installed in the area of the air duct 21 on the side of the inner tank 1. The side plate 3 is installed on the side wall 13 of the inner tank 1 and covers the outer part of the lower air duct 215. The inner side surface of the side plate 3 is spaced apart from the lower air duct 215.

[0164] In this embodiment, the side plate 3 is installed outside the side wall 13 of the inner tank 1. The inner side surface of the side plate 3 is spaced apart from the lower air duct 215, and the inner side surface of the side plate 3 is spaced apart from the heater 23.

[0165] Among them, the heater 23 and the lower air duct 215 are located between the side plate 3 and the inner tank 1. The side plate 3 can protect the heater 23 and the lower air duct 215. At the same time, it can reduce the risk of people touching the high - voltage components and high - temperature heating components, improving safety.

[0166] In some embodiments, such as Figure 13 shown, the inner side surface of the side plate 3 is spaced apart from the lower air duct 215, and the spacing is c. The spacing c satisfies: c≥2mm.

[0167] Among them, the spacing c between the inner side surface of the side plate 3 and the lower air duct 215 can be 2mm, 4mm, 7mm or a wider distance.

[0168] In other words, the side plate 3 is installed outside the side wall 13 of the inner tank 1. The inner side surface of the side plate 3 is spaced apart from the lower air duct 215 and the heater 23.

[0169] It can be understood that the heater 23 is installed in the area of the lower air duct 215 on the side wall 13 of the inner tank 1. In some embodiments, components such as a thermostat are also installed in the lower air duct 215. The heating tube generates a large amount of heat, and both the heating tube and the thermostat contain high - voltage terminals, and the high - voltage terminals are directly connected to high - voltage electricity.

[0170] On the premise of ensuring grounding, by installing the side plate 3 and setting the spacing between the inner side surface of the side plate 3 and the lower air duct 215, on the one hand, it can prevent the side plate 3 from directly touching the high - voltage and high - temperature heating components, improving the safety of the cleaning device; on the other hand, it can control the wall temperature outside the side plate 3 within a safe range, reducing the risk of people being scalded when touching the side wall 13. In the embedded installation of the cleaning device, it can reduce the high - temperature damage of the inner wall of the installation cabinet by the side plate 3.

[0171] In some embodiments, the power of the heater 23 is P, satisfying: P ≤ 500 W.

[0172] Among them, the power P of the heater 23 can be 150 W, 200 W, 350 W, 400 W or 500 W, and can be specifically limited according to the usage situation.

[0173] In the related art, for the cleaning equipment with the external circulation hot air drying mode, due to the limited installation position, the size of the fan 22 and the power of the heater 23 are small, and the hot air drying can only be used as an auxiliary energy source, while the high-temperature rinsing is the main energy source. Therefore, the tableware washed by hand needs a quite long time for single drying operation, which is not convenient.

[0174] This application uses the internal circulation hot air drying mode, increases the power of the heater 23, sets the power of the heater 23 as P, can use the hot air drying as the main energy source, and converts the high-temperature rinsing into the auxiliary energy source, significantly shortening the drying time of the tableware and improving the convenience.

[0175] In some embodiments, the cleaning equipment at least has the following working modes:

[0176] First, the cleaning equipment has an internal circulation drying working mode.

[0177] In the internal circulation drying working mode, the fan 22 and the heater 23 work, the exhaust assembly 4 stops, and the air door 261 is in the first position.

[0178] When the air door 261 is in the first position, the valve 26 closes to block the air supply inlet 2131.

[0179] When the exhaust assembly 4 does not work and the temperature and humidity in the cleaning chamber 11 are relatively low, the valve 26 closes to block the air supply inlet 2131, so that the fan 22 and the heater 23 can circulate and heat the gas in the dishwasher cavity, achieving the effect of rapid and uniform temperature rise, and reducing the leakage of water vapor during the cleaning process.

[0180] The gas in the cleaning chamber 11 is sucked into the air duct 21 from the air inlet 211 of the air duct 21 by the fan 22, and the hot air heated by the heater 23 enters the cleaning chamber 11 from the air outlet 212 of the air duct 21. The air in the cleaning chamber 11 is circulated and heated, and the heat is also evenly distributed. The relatively cold area in the cleaning chamber 11 can be evaporated and dried faster through heat transfer and convective heat transfer, which is beneficial to the drying of the whole cavity in the cleaning chamber 11 and reduces the drying dead angle.

[0181] When the temperature and humidity in the cleaning chamber 11 are too low, forced convection and circulating heating in the cleaning chamber 11 can be achieved by turning on the blower 22 and the heater 23, accelerating the evaporation of the remaining water in the cleaning chamber 22.

[0182] Second, the cleaning device has an external circulation drying working mode. In the external circulation drying working mode, the blower 22, the heater 23 and the exhaust assembly 4 all work, and the air damper 261 is in the second position.

[0183] When the air damper 261 is in the second position, the valve 26 closes the air inlet 211, and the cleaning device operates in a pure external circulation working mode.

[0184] At this time, the air supply inlet 2131 introduces external air into the cleaning chamber 11, providing sufficient air supplement for the cleaning chamber 11, helping the exhaust assembly to quickly discharge the evaporated water vapor, achieving a rapid moisture discharge effect and helping to dry quickly.

[0185] Third, the cleaning device has a moisture exhaust negative pressure working mode;

[0186] In the moisture exhaust negative pressure working mode, the blower 22 and the heater 23 are shut down, and the exhaust assembly 4 works. Due to the lack of external air supplement, the cleaning chamber 11 is drawn into a negative pressure state by the exhaust assembly 4, and the negative pressure environment also helps to improve the drying rate.

[0187] Fourth, the cleaning device has a mixed working mode;

[0188] In the mixed working mode, the blower 22, the heater 23 and the exhaust assembly 4 all work, the air damper 261 is between the first position and the second position, and the air flow rate inhaled by the air inlet 211 ≤ the air flow rate inhaled by the air supply inlet 2131.

[0189] Among them, the driving mechanism 27 can be a stepping motor. The driving mechanism 27 drives the air damper 261 to be between the first position and the second position. Both the air supply inlet 2131 and the air inlet 211 are opened, and the cleaning device operates in an internal circulation and external circulation mixed working mode.

[0190] The blower 22 can circulate the air in the cleaning chamber 11, making the temperature and humidity distribution in the cleaning chamber 11 uniform, and further improving the effect of uniform drying of the whole chamber.

[0191] In this embodiment, when the fan 22 and the exhaust component 4 work simultaneously, the air inhaled by the fan 22 from the cleaning chamber 11 is less than the flow rate of the external air inhaled from the air supply inlet 2131. The exhaust component 4 extracts and discharges the air in the cleaning chamber 11. At this time, the fan 22 mainly introduces external air, and a small amount of air in the chamber is inhaled for circulation. At this time, both internal and external circulation are carried out simultaneously, which can effectively meet the requirement of rapid moisture removal during the moisture removal stage.

[0192] Fifthly, the cleaning device has a mixed moisture removal working mode;

[0193] In the mixed moisture removal working mode, the fan 22 and the exhaust component 4 both work, and the heater 23 stops operating, so as to realize the mixing and moisture removal of the air in the cleaning chamber 11, and further improve the effect of uniform moisture removal in the whole chamber.

[0194] In this embodiment, the air damper 22 can be located at the first position to close the air supply inlet 2131, and the fan 22 is turned on to make the air in the cleaning chamber 11 circulate and mix evenly; the air damper 22 can be located at the second position to close the air inlet 211, and the fan 22 is turned on to make the air in the cleaning chamber 11 form normal pressure through external circulation for rapid moisture removal; the air damper 22 can be located between the first position and the second position, both the air supply inlet 2131 and the air inlet 211 are opened, and the air in the cleaning chamber 11 is mixed and moisture is removed, further improving the effect of uniform moisture removal in the whole chamber.

[0195] In some embodiments, as Figure 4 and Figure 11 shown, the cleaning device further includes a water baffle 24, and the water baffle 24 is installed at the air inlet 211. The water baffle 24 can be connected to the air inlet 211 by connection methods such as threaded connection, plug-in connection, pivot connection or snap connection.

[0196] The water baffle 24 has the functions of ventilation and water blocking. The water baffle 24 can be arranged between the fan 22 and the cleaning chamber 11, and the water baffle 24 is located inside the cleaning chamber 11. When the fan 22 is turned on, the fan 22 can draw the gas in the cleaning chamber 11 through the water baffle 24 into the installation position of the fan 22. At the same time, the water baffle 24 can reduce the direct impact and sputtering of water flow on the fan 22 and the heater 23 in the air duct 21, playing a protective role.

[0197] In some embodiments, as Figure 4 shown, a grille 2156 is provided at the air outlet 212.

[0198] Among them, the grille 2156 is used for guiding the air flow. The grille 2156 can introduce the air flow at the air outlet 212 into different directions. The diversion direction of the grille 2156 can be determined according to the installation position of the exhaust component 4 and the installation position of the air inlet 211 of the air duct 21.

[0199] For example, if the air inlet 211 of the air duct 21 is provided on the top wall 12 of the cleaning chamber 11, the grille 2156 can appropriately direct the hot air downward in the cleaning chamber 11, thereby extending the flow path of the hot air in the cleaning chamber 11, increasing the area of the gas heated by the heater 23 flowing through the entire cleaning chamber 11, and improving the full-chamber drying and dead-angle drying effects of the cleaning chamber 11.

[0200] For example, if the exhaust assembly 4 is located at the upper left part of the cleaning chamber 11, the grille 2156 can appropriately direct the hot air downward to the rear side of the cleaning chamber 11, thereby extending the flow path of the hot air in the cleaning chamber 11, increasing the area of the gas heated by the heater 23 flowing through the entire cleaning chamber 11, improving the full-chamber drying and dead-angle drying effects of the cleaning chamber 11, and reducing the amount of hot air discharged by the exhaust assembly 4 without being utilized, and increasing the utilization efficiency of the hot air heat energy.

[0201] Among them, the grille 2156 can also reduce the direct impact of water flow on the air duct 21 and play a protective role for the air duct 21.

[0202] As Figure 14 and Figure 15 shown, the cleaning device of the embodiment of the present application further includes an air duct structure, and the air duct structure includes: an upper air duct 214, a flexible connector 217, and a lower air duct 215.

[0203] The upper air duct 214 is provided with an air inlet 211 of the air duct structure; one end of the flexible connector 217 is connected to the lower port of the upper air duct 214; the upper port of the lower air duct 215 is connected to the other end of the flexible connector 217, and the lower air duct 215 is provided with an air outlet 212 of the air duct structure; among them, the air inlet 211 and the air outlet 212 are not coplanar.

[0204] Among them, the gas enters the air duct structure from the air inlet 211 of the air duct structure, flows through the upper air duct 214, the flexible connector 217, and the lower air duct 215 in sequence, and finally flows out from the air outlet 212 of the air duct structure. The air inlet 211 of the air duct structure is communicated with the air inlet 41 of the fan 22.

[0205] Among them, both ends of the flexible connector 217 are respectively connected to the lower port of the upper air duct 214 and the upper port of the lower air duct 215, and the flexible connector 217 can be connected to the lower port of the upper air duct 214 and the upper port of the lower air duct 215 by detachable connection methods such as plug-in connection, clamp connection, or fixture connection.

[0206] The flexible connector 217 can be a connection structure with deformable performance, such as a flexible joint composed of one or a combination of multiple materials among metal, plastic, and rubber.

[0207] By setting the detachable connection mode between the flexible connecting piece 217 and the lower port of the upper air duct 214 and the upper port of the lower air duct 215, it is convenient to replace the combination of the upper air duct 214 and the lower air duct 215 of different types and sizes, and the included angle relationship between the upper air duct 214 and the lower air duct 215 can be changed by bending the flexible connecting piece 217, so that the air duct structure can be installed in the inner tank 1 of cleaning devices of various heights.

[0208] In the related art, in order to extend the circulation path of hot air during hot air drying in the cleaning chamber 11, make full use of the heat energy of the hot air, and improve the full-chamber drying and dead-angle drying effects of the cleaning chamber 11, the installation plane of the fan 22 and the inner circulation outlet of the cleaning chamber 11 are usually arranged on different surfaces of the cleaning chamber 11. However, the applicant has found through research that when the installation plane of the fan 22 and the inner circulation outlet of the cleaning chamber 11 are on different surfaces, when the cleaning chamber 11 and the air duct structure are assembled, tolerance and sealing problems will occur, and the assembly difficulty and the later use effect are poor.

[0209] The air duct structure of the embodiment of the present application, by setting the split structure of the upper air duct 214 and the lower air duct 215, with the flexible connecting piece 217 between the upper air duct 214 and the lower air duct 215, and the air inlet 211 and the air outlet 212 of the air duct structure not being coplanar, can be adapted to cleaning devices in which the installation plane of the fan 22 and the inner circulation outlet of the cleaning chamber 11 are on different surfaces. And when assembling with the cleaning device, the tolerance generated during the production process of the inner tank 1 can be compensated by replacing the upper air duct 214 and the lower air duct 215 of different lengths and sizes, reducing the assembly difficulty, and at the same time can be adapted to cleaning devices of different heights, improving the reliability of use and the usage scenarios.

[0210] In some embodiments, as Figure 16 shown, the upper air duct 214 includes a horizontal section 2141 and a lower connecting section 2142 connected to the horizontal section 2141 and extending downward. The lower surface of the horizontal section 2141 is provided with an air inlet 211, and the flexible connecting piece 217 is connected to the lower connecting section 2142.

[0211] Among them, the horizontal section 2141 and the lower connecting section 2142 are respectively located on different surfaces of the cleaning chamber 11. By setting the downward-extending lower connecting section 2142, the upper air duct 214 can be distributed on different surfaces, so as to be adapted to cleaning devices in which the installation plane of the fan 22 and the inner circulation outlet of the cleaning chamber 11 are on different surfaces.

[0212] In some embodiments, as Figure 16As shown, the upper surface of the upper air duct 214 has an opening for installing the fan 22; the flexible connecting member 217 includes a connected cover plate 2171 and a sleeve 2172. The two ends of the sleeve 2172 are respectively sleeved on the lower port of the upper air duct 214 and the upper port of the lower air duct 215, and the cover plate 2171 covers the outside of the upper air duct 214 and closes the opening.

[0213] In this embodiment, the lower surface of the upper air duct 214 and the cover plate 2171 form a receiving cavity for installing the fan 22. The cover plate 2171 can be connected to the opening of the upper air duct 214 by connection methods such as plug-in connection, snap connection or bolt connection.

[0214] Among them, the sleeve 2172 can be a connecting pipe made of rubber or plastic. The two ends of the sleeve 2172 are respectively sleeved on the lower port of the upper air duct 214 and the upper port of the lower air duct 215.

[0215] In some embodiments, the two ends of the sleeve 2172 are respectively sleeved on the connecting section and the upper port of the lower air duct 215. At least part of the cover plate 2171 is connected to the horizontal section 2141 and closes the opening.

[0216] Among them, the cover plate 2171 and the sleeve 2172 have at least the following two structural forms:

[0217] First, the cover plate 2171 is completely located on the side of the fan 22 facing the cleaning chamber 11. The cover plate 2171 can be completely connected to the horizontal section 2141 of the upper air duct 214. At least part of the sleeve 2172 extends into the side of the fan 22 facing the cleaning chamber 11 and is connected to the cover plate 2171.

[0218] At least part of the sleeve 2172 is a flexible structure, so that one end of the sleeve 2172 can be bent and deformed toward the side of the cleaning chamber 11 where the upper port of the lower air duct 215 is located, and the other end is bent and deformed toward the other side of the cleaning chamber 11 where the lower port of the upper air duct 214 is located, so as to facilitate the sleeve 2172 to be sleeved on the lower port of the upper air duct 214 and the upper port of the lower air duct 215.

[0219] Second, a part of the cover plate 2171 covers the upper surface of the upper air duct 214, and a part covers the bent part of the upper air duct 214 extending laterally.

[0220] In this embodiment, a part of the cover plate 2171 is located on the side of the fan 22 facing the cleaning chamber 11, and another part of the cover plate 2171 covers the bent part of the upper air duct 214 extending laterally.

[0221] In this embodiment, at least a part of the cover plate 2171 is a flexible structure, so that after the two ends of the sleeve 2172 are respectively sleeved with the lower port of the upper air duct 214 and the upper port of the lower air duct 215 on a certain side of the cleaning chamber 11, the cover plate 2171 can be bent and deformed toward the other side where the fan 22 is located, so as to cover the outside of the upper air duct 214 and seal the open end.

[0222] In some embodiments, the two ends of the sleeve 2172 are respectively in interference fit with the lower port of the upper air duct 214 and the upper port of the lower air duct 215, so as to improve the sealing performance of the connection between the two ends of the sleeve 2172 and the lower port of the upper air duct 214 and the upper port of the lower air duct 215.

[0223] In some embodiments, as Figure 16 and Figure 17 shown, the side wall 13 of the upper air duct 214 is provided with a first connection structure 2143, and the cover plate 2171 is provided with a second connection structure 21711, and the first connection structure 2143 is connected to the second connection structure 21711.

[0224] Among them, the side wall 13 of the upper air duct 214 is assembled with the cover plate 2171, and the side wall 13 of the upper air duct 214 can be connected to the cover plate 2171 by connection methods such as bolt connection, snap connection or plug-in connection.

[0225] When the side wall 13 of the upper air duct 214 is connected to the cover plate 2171 by plug-in connection, one of the first connection structure 2143 and the second connection structure 21711 is a plug, and the other of the first connection structure 2143 and the second connection structure 21711 is a socket, and the plug is inserted into the socket to connect the side wall 13 of the upper air duct 214 and the cover plate 2171 together.

[0226] When the side wall 13 of the upper air duct 214 is connected to the cover plate 2171 by snap connection, one of the first connection structure 2143 and the second connection structure 21711 is a fixed snap, and the other of the first connection structure 2143 and the second connection structure 21711 is a connecting member 2422, and the connecting member 2422 is inserted into the fixed snap to lock the side wall 13 of the upper air duct 214 and the cover plate 2171 together.

[0227] In some embodiments, the first connection structure 2143 cooperates with the second connection structure 21711. The first connection structure 2143 can be provided with multiple ones, and the number of the second connection structures 21711 is adapted to the number of the first connection structures 2143, so as to increase the connection stability between the side wall 13 of the upper air duct 214 and the cover plate 2171.

[0228] In some embodiments, the upper cover plate 2171 is made of rubber. The upper half of the upper cover plate 2171 can be bent and covered on the upper surface of the air duct 21, reducing problems such as vibration of the motor assembly of the blower 22, vibration between the blower 22 and the top outer plate, and aerodynamics generated by the blower 22, and effectively reducing the noise index during the operation of the cleaning device.

[0229] In some embodiments, as Figure 15 shown, the lower air duct 215 includes: a main body portion 2158 and a cover body 2157; the upper end of the main body portion 2158 is connected to the flexible connector 217, at least part of the outer side surface of the main body portion 2158 is open, and an air outlet 212 is provided; the cover body 2157 is connected to the main body portion 2158 and closes the open part of the outer side surface of the main housing, and the cover body 2157 is made of a flexible material.

[0230] In this embodiment, the main body portion 2158 can be made of a light material, such as hard plastic or metal; the cover body 2157 is made of a flexible material, such as rubber or plastic.

[0231] Among them, the main body portion 2158 and the cover body 2157 can be connected by connection methods such as plug-in connection, clamp connection or fixture connection, so as to facilitate disassembly and replacement.

[0232] By providing the lower air duct 215 with a main body portion 2158 made of a hard material and a cover body 2157 made of a flexible material, a good sealing effect can be produced, and the overall lower air duct 215 can reduce the risks of air leakage and water leakage, and improve the reliability of the air duct structure.

[0233] In some embodiments, a sealing strip can be provided between the main body portion 2158 and the cover body 2157 to further improve the sealing performance between the main body portion 2158 and the cover body 2157 and improve the reliability of the air duct structure.

[0234] In some embodiments, as Figure 19 shown, the main body portion 2158 includes: an upper connection section 21581 and an air duct housing 21582.

[0235] The lower end of the flexible connector 217 is sleeved on the upper connection section 21581; the air duct housing 21582 is connected to the upper connection section 21581, the outer side surface of the air duct housing 21582 is open, and an air outlet 212 is provided, and the cover body 2157 covers the air duct housing 21582.

[0236] Among them, the lower end of the flexible connector 217 and the upper connection section 21581 can be in interference fit to improve the sealing performance of the connection between the lower end of the flexible connector 217 and the upper connection section 21581.

[0237] In some embodiments, as Figure 15 andFigure 18 As shown, a third connection structure 21583 is provided on the outer peripheral wall of the upper connection section 21581. An avoidance hole 2173 is provided at the lower end of the flexible connection member 217. A fourth connection structure 21571 is provided on the cover body 2157. The third connection structure 21583 passes through the avoidance hole 2173 and is connected to the fourth connection structure 21571.

[0238] Among them, the connection between the third connection structure 21583 and the fourth connection structure 21571 can be a snap connection, a threaded connection, or a plug-in connection.

[0239] The third connection structure 21583 passing through the avoidance hole 2173 can connect and fix the flexible connection member 217 and the upper connection section 21581. The third connection structure 21583 passing through the avoidance hole 2173 and being connected to the fourth connection structure 21571 can connect and fix the upper connection section 21581, the cover body 2157, and the flexible connection member 217.

[0240] In the case where the third connection structure 21583 and the fourth connection structure 21571 are connected by a snap connection, the third connection structure 21583 can be a fixed snap, and the fourth connection structure 21571 can be a sliding snap. When the lower end of the flexible connection member 217 is sleeved on the upper connection section 21581, the third connection structure 21583 passes through the avoidance hole 2173. At least part of the third connection structure 21583 can extend out of the avoidance hole 2173, so as to connect and fix the flexible connection member 217 and the upper connection section 21581. When the fourth connection structure 21571 slides into the third connection structure 21583, the upper connection section 21581, the cover body 2157, and the flexible connection member 217 can be connected and fixed.

[0241] In the case where the third connection structure 21583 and the fourth connection structure 21571 are connected by a threaded connection, the third connection structure 21583 can be a convex block with a threaded hole, and the fourth connection structure 21571 can be a structure with a connecting member 2422 such as a bolt, a stud, or a screw. When the lower end of the flexible connection member 217 is sleeved on the upper connection section 21581, the third connection structure 21583 passes through the avoidance hole 2173. The threaded hole of the third connection structure 21583 can extend out of the avoidance hole 2173, and the fourth connection structure 21571 is threadedly connected to the third connection structure 21583.

[0242] In some embodiments, as Figure 19 shown, the air duct housing 21582 is provided with a heater installation position 21585 for installing the heater 23 and a thermostat installation position 21586 for installing the thermostat 29.

[0243] The heater mounting position 21585 is used to mount the heater 23. The heater 23 can be mounted on the mounting heater 23 by means of plug-in connection, threaded connection, or snap connection. The heater 23 is configured to heat the gas flowing through the downwind duct 215 when turned on.

[0244] Thermostat mounting position 21586 is used to install thermostat 29. Thermostat 29 can be installed in thermostat mounting position 21586 by plug-in connection, threaded connection, or snap connection. Thermostat 29 is used to detect the temperature in the downwind duct 215 and control the working state of the cleaning device according to the detected temperature result.

[0245] Among them, the heater installation position 21585 and the thermostat installation position 21586 are both located in the air duct shell 21582, that is, the heater 23 and the thermostat 29 are installed in the same space.

[0246] In some embodiments, as Figure 19 As shown, along the flow direction of the gas, the heater mounting position 21585 and the temperature controller mounting position 21586 are installed in sequence so that the air flow is heated by the heater 23 and then the temperature is measured by the temperature controller 29.

[0247] By installing both the thermostat 29 and the heater 23 in the air duct shell 21582, the thermostat 29 can monitor the temperature inside the air duct shell 21582 in real time. In the event that the fan 22 suddenly stalls or is damaged, the thermostat 29 can detect the temperature abnormality in time and control the cleaning equipment to stop working, which can effectively reduce risks and improve the safety of the cleaning equipment.

[0248] In some embodiments, as Figure 15 As shown, a heat spreader 21584 is installed in the air duct housing 21582. The heat spreader 21584 can be connected to the air duct housing 21582 by threaded connection, plug-in connection or snap connection. The heat spreader 21584 can be a quartz heating plate, a ceramic heating plate, a metal heating element or other components.

[0249] The vapor chamber 21584 is located within the duct housing 21582 on the side of the heater mounting position 21585 facing away from the inner tank 1. The vapor chamber 21584 is in direct contact with the interior of the duct housing 21582. Due to the excellent thermal conductivity of the vapor chamber 21584, localized high temperatures near the heater 23 can be quickly dissipated to the surrounding area, reducing the risk of localized high temperatures within the duct housing 21582. This also reduces the risk of damage to the human body or the cabinet after built-in installation due to excessive temperatures outside the duct housing 21582.

[0250] In some embodiments, as Figure 20As shown, the lower air duct 215 is provided with a heater installation position 21585. There is a diffuser section 2154 between the inlet end of the lower air duct 215 and the heater installation position 21585. The flow area of the diffuser section 2154 gradually increases from the end close to the inlet end of the lower air duct 215 to the end close to the heater installation position 21585.

[0251] Among them, the lower air duct 215 includes a heater installation position 21585 and the inlet end of the lower air duct 215. The flow area of the inlet end of the lower air duct 215 is smaller than that of the heater installation position 21585. The heater installation position 21585 is arranged at the rear side of the inlet end of the lower air duct 215, and the air flow flows from the inlet end of the lower air duct 215 to the heater installation position 21585.

[0252] Among them, the heater installation position 21585 is used to install the heater 23. The heater 23 is configured to heat the gas flowing through the lower air duct 215 when it is turned on. The fan 22 can be installed at the inlet end of the lower air duct 215 or at a position close to the inlet end of the lower air duct 215 to suck the gas from the inlet end of the lower air duct 215 into the lower air duct 215 and drive the gas to flow along the lower air duct 215 to the heater installation position 21585.

[0253] In this embodiment, the diffuser section 2154 can be an axisymmetric shape, or a shape with one side inclined and one side vertical, or a shape with both sides inclined but different inclination angles, which can be specifically set according to the actual use scenario.

[0254] According to the lower air duct 215 provided by the embodiment of the present application, by providing a diffuser section 2154 between the inlet end of the lower air duct 215 and the heater installation position 21585, and the flow area of the diffuser section 2154 gradually increases from the end close to the inlet end of the lower air duct 215 to the end close to the heater installation position 21585. On the one hand, it can reduce the speed of the air flow entering from the inlet end of the lower air duct 215, extend the contact time of the gas with the heater 23, and increase the heating effect; on the other hand, it can make the air volume blow more evenly on the surface of the heater 23, reduce the local high temperature phenomenon, and improve the safety and reliability of the use of the lower air duct 215.

[0255] In some embodiments, as Figure 20 shown, the front side wall 13 of the diffuser section 2154 is inclined forward from the end close to the inlet end of the lower air duct 215 to the end close to the heater installation position 21585.

[0256] Among them, the front side wall 13 of the expansion section 2154 has an angle with the vertical direction, so that the flow area at the inlet end of the lower air duct 215 is smaller than the flow area of the lower heater installation position 21585. After the air flow flows out from the outlet of the fan 22, through the expansion of the flow area, the wind speed can be decreased and the pressure can be increased, so that the air volume can be blown to the heater 23 more uniformly, reducing the local high temperature from restricting the power of the heater 23, and playing a role in pressure expansion and flow stabilization.

[0257] In some embodiments, as Figure 20 shown, the inclination angle γ between the front side wall 13 of the expansion section 2154 and the vertical direction satisfies: 10° ≤ γ ≤ 45°.

[0258] Among them, the inclination angle γ between the front side wall 13 of the expansion section 2154 and the vertical direction can be 10°, 20°, 30° or 45°, and can be specifically set according to the actual use scenario.

[0259] By setting the inclination angle range between the front side wall 13 of the expansion section 2154 and the vertical direction, the air volume can be better evenly distributed, which helps the air volume to evenly pass over the cross-section of the lower heater 23, reducing the local overheating from restricting the power of the heater 23.

[0260] In some embodiments, a thermostat installation position 21586 for installing a thermostat 29 is provided in the lower air duct 215.

[0261] The thermostat installation position 21586 is used to install the thermostat 29, and the thermostat 29 can be installed on the thermostat installation position 21586 by connection methods such as plug-in connection, threaded connection or snap connection. The thermostat 29 is used to detect the temperature in the lower air duct 215 and control the overall working state of the cleaning device according to the detected temperature result.

[0262] By installing both the thermostat 29 and the heater 23 in the lower air duct 215, the thermostat 29 can monitor the temperature in the lower air duct 215 in real time. In the case of sudden stall or damage of the fan 22, the thermostat 29 can detect the abnormal temperature in time and thus control the cleaning device to stop working, which can effectively reduce risks and improve the safety of the cleaning device.

[0263] Among them, the position of the thermostat installation position 21586 in the lower air duct 215 has at least the following two structures:

[0264] First, the expansion section 2154 is provided with a thermostat installation position 21586 for installing the thermostat 29.

[0265] Among them, the thermostat installation position 21586 can be set on any side wall 13 of the expansion section 2154. For example, it can be set on the front side wall 13 or the rear side wall 13 of the expansion section 2154.

[0266] In this embodiment, by arranging the thermostat installation position 21586 between the inlet end of the lower air duct 215 and the heater installation position 21585, the thermostat 29 can detect the temperature of the gas that has not been heated by the heater 23, and timely control the cleaning device to stop working when the temperature is abnormal, further reducing risks and improving the safety of the cleaning device.

[0267] In some embodiments, the front side wall 13 of the expansion section 2154 is provided with a thermostat installation position 21586 for installing the thermostat 29.

[0268] In this embodiment, if the fan 22 suddenly stalls or breaks down, the hot air of the heater 23 floats up and quickly reaches the inclined position of the front side wall 13 of the expansion section 2154. At this time, the temperature at this place reaches the maximum, and this thermostat installation position 21586 can effectively reduce safety problems.

[0269] Second, as Figure 21 shown, the lower air duct 215 is provided with a thermostat installation position 21586 for installing the thermostat 29, and the thermostat installation position 21586 and the heater installation position 21585 are arranged side by side in the horizontal direction.

[0270] In this embodiment, the thermostat installation position 21586 and the heater installation position 21585 are arranged side by side in the horizontal direction. The thermostat 29 can directly detect the temperature of the heater 23, and timely control the cleaning device to stop working when the temperature of the heater 23 is abnormal, further reducing risks and improving the safety of the cleaning device.

[0271] In some embodiments, as Figure 21 shown, the lower air duct 215 further includes: a partition plate 2155; the partition plate 2155 is installed on the inner side surface of the thermostat installation position 21586 to isolate the thermostat 29 from the air flow channel of the lower air duct 215, and the partition plate 2155 is made of a thermally conductive insulating material.

[0272] Among them, the partition plate 2155 can be made of a thermally conductive insulating material such as ceramic, graphene, mica or silica gel. The partition plate 2155 can be connected to the inner side surface of the thermostat installation position 21586 by plug-in connection, threaded connection or snap connection.

[0273] In this embodiment, by providing the partition plate 2155 made of a thermally conductive insulating material, on the one hand, the thermostat 29 that needs to be connected to strong electricity can be isolated from the air flow channel of the lower air duct 215, so as to avoid the thermostat 29 contacting the conductive water vapor in the lower air duct 215, strengthen the insulation protection and reduce potential safety hazards; on the other hand, the partition plate 2155 has a heat conduction function and can reflect the temperature at the heater 23 to the thermostat 29 in real time, so as to cut off the entire system when the thermostat 29 detects an abnormal temperature and improve the safety of the cleaning device.

[0274] It can be understood that since the lower air duct 215 and the cleaning chamber 11 belong to the same closed space and the space is filled with a large amount of conductive water vapor, and the thermostat 29 needs to be connected to high-voltage electricity, there are safety hazards if the thermostat 29 is in direct contact with the water vapor.

[0275] As Figure 22 and Figure 23 shown, the cleaning device according to the embodiment of the present application further includes an air duct 21, and the air duct 21 includes: a fan installation position 2146, a first air guiding section 2147, and a second air guiding section 2149 that are sequentially connected. The fan installation position 2146 and the first air guiding section 2147 are distributed in the same direction, and the first air guiding section 2147 and the second air guiding section 2149 are bent relative to each other; wherein, the first air guiding section 2147 is provided with a volute tongue 2148, and the flow area at the volute tongue 2148 gradually increases from the end close to the fan installation position 2146 to the end close to the second air guiding section 2149.

[0276] Among them, the fan installation position 2146 is used to install the fan 22, and the fan installation position 2146 and the first air guiding section 2147 are located on the same side of the cleaning chamber 11. For example, both the fan installation position 2146 and the first air guiding section 2147 can be located on the top surface of the cleaning chamber 11, or both can be located on the side surface of the cleaning chamber 11.

[0277] The first air guiding section 2147 and the second air guiding section 2149 are bent relative to each other. The first air guiding section 2147 and the second air guiding section 2149 are located on adjacent sides of the cleaning chamber 11. For example, the first air guiding section 2147 is located on the top surface of the cleaning chamber 11, and the second air guiding section 2149 is located on the side surface of the cleaning chamber 11; or the first air guiding section 2147 is located on the side surface of the cleaning chamber 11, and the second air guiding section 2149 is located on the bottom surface of the cleaning chamber 11.

[0278] Among them, the angle at which the first air guiding section 2147 and the second air guiding section 2149 are bent relative to each other can be 90°, 180° or other angles, and can be specifically set according to the installation environment of the air duct 21.

[0279] Among them, the volute tongue 2148 is located on the side of the first air guiding section 2147 close to the fan installation position 2146, and the volute tongue 2148 is used to reduce the amount of gas circulating in the fan installation position 2146. When the impeller 222 of the fan 22 rotates, when the airflow entering the air inlet 211 passes by the volute tongue 2148, the tongue of the volute tongue 2148 divides them into two parts: most of the airflow flows into the first air guiding section 2147 along the fan installation position 2146; a small part of the airflow flows back to the fan installation position 2146 through the gap between the volute tongue 2148 and the impeller 222, rotates with the impeller 222 in the fan installation position 2146 for one week, and then returns to the volute tongue 2148 to participate in a new flow division.

[0280] It should be noted that the gas in the cleaning chamber 11 is immediately drawn into the second air guiding section 2149 after being inhaled by the fan 22 into the first air guiding section 2147. When the gas in the cleaning chamber 11 passes from the first air guiding section 2147 to the second air guiding section 2149, its direction deflects, and the deflection angle is the same as the relative bending angle between the first air guiding section 2147 and the second air guiding section 2149. The deflection of the gas generates resistance to the gas flow, making it prone to the phenomenon of backflow vortices, which affects the overall working state, air volume, and efficiency of the fan 22.

[0281] The air duct 21 provided in the embodiment of the present application is provided with a volute tongue 2148 in the first air guiding section 2147, and the flow area at the volute tongue 2148 gradually increases from one end close to the fan installation position 2146 to one end close to the second air guiding section 2149. This can reduce the influence of the backflow vortices generated due to the deflection of the air flow direction when passing from the first air guiding section 2147 to the second air guiding section 2149. Moreover, due to the expansion design of the first air guiding section 2147, it can significantly improve the wind speed uniformity at the outlet of the fan 22 and the maximum static pressure of the fan 22, enhance the overall air volume in the air duct 21, and make the wind speed of the air flow reaching the surface of the heater 23 uniform, thereby improving the hot air drying effect of the cleaning device.

[0282] In some embodiments, the fan installation position 2146 and the first air guiding section 2147 are distributed in the horizontal direction, and the second air guiding section 2149 is distributed in the vertical direction.

[0283] Among them, the relative bending angle between the first air guiding section 2147 and the second air guiding section 2149 is 90°, so as to adapt to cleaning devices where the installation plane of the fan 22 and the inner circulation outlet of the cleaning chamber 11 are on different planes.

[0284] In some embodiments, the volute tongue 2148 includes an arc segment 21481 and a straight segment 21482. The arc segment 21481 protrudes towards the middle of the first air guiding section 2147. The first end of the straight segment 21482 is connected to the arc segment 21481, and the first end is connected to the wall surface of the first air guiding section 2147.

[0285] Among them, the arc segment 21481 is mainly used to guide the flow direction of the gas, enabling the gas to better enter the area of the straight segment 21482, while reducing the turbulence and eddy currents of the air flow. The straight segment 21482 is mainly used to smoothly introduce the air flow of the arc segment 21481 into the second air guiding section 2149.

[0286] In some embodiments, as Figure 23 shown, the included angle between the straight segment 21482 and the central axis of the first air guiding section 2147 is θ, satisfying: 5° ≤ θ ≤ 60°.

[0287] Among them, the included angle θ between the straight line segment 21482 and the central axis of the first air guide segment 2147 can be 5°, 25°, 45°, or 60°, and can be specifically set according to the actual working environment.

[0288] In some embodiments, the straight line segment 21482 is tangent to the arc segment 21481, so as to smoothly introduce the air flow of the arc segment 21481 into the straight line segment 21482.

[0289] In some embodiments, as Figure 23 shown, the radian of the arc segment 21481 is δ, satisfying: 30° ≤ δ ≤ 90°.

[0290] Among them, the radian δ of the arc segment 21481 can be 30°, 45°, 60°, or 90°, and can be specifically set according to the actual working environment.

[0291] By setting the radian δ of the arc segment 21481, the gas can enter the area of the straight line segment 21482 better, and at the same time, the turbulence and eddy current of the air flow are reduced.

[0292] In some embodiments, as Figure 23 shown, the vertical distance d4 from the center of the fan installation position 2146 to the straight line segment 21482 and the radius r of the fan installation position 2146 satisfy: d4 ≤ 3r.

[0293] Among them, the vertical distance d4 from the center of the fan installation position 2146 to the straight line segment 21482 can be negative, that is, the extension line of the straight line segment 21482 intersects with the fan installation position 2146; or, the extension line of the straight line segment 21482 is tangent to the fan installation position 2146, that is, the vertical distance d4 from the center of the fan installation position 2146 to the straight line segment 21482 is 0; or, the vertical distance d4 from the center of the fan installation position 2146 to the straight line segment 21482 can be r, 1.5r, or 3r, and can be specifically set according to the actual working environment.

[0294] In this embodiment, by setting the vertical distance from the center of the fan installation position 2146 to the straight line segment 21482, the gas can enter the area of the straight line segment 21482 better, and at the same time, the turbulence and eddy current of the air flow are reduced.

[0295] In some embodiments, the volute tongue 2148 is spaced apart from the second air guide segment 2149 to improve the flow characteristics of the gas, improve the efficiency of the flow splitting, and reduce the turbulence and eddy current of the air flow. The spacing distance between the volute tongue 2148 and the second air guide segment 2149 needs to be calculated and adjusted according to the actual requirements.

[0296] In some embodiments, as Figure 23 shown, the air duct 21 is opened at the fan installation position 2146 to form the lower volute of the fan 22.

[0297] In this embodiment, the fan installation position 2146 is open to facilitate the installation of the impeller 222 of the fan 22.

[0298] The fan 22 may only retain the upper shell 221, the impeller 222 and the motor assembly of the fan 22, and the original lower shell of the fan 22 is omitted. In this way, the fan installation position 2146 and the upper shell 221 of the fan 22 together form a part of the fan 22, reducing the overall size of the fan 22. A larger model of the fan 22 can be installed in the same space. Moreover, the fan installation position 2146 replaces the lower shell of the fan 22, and the impeller 222 is directly installed in the fan installation position 2146, increasing the air inlet area of the air inlet 211 and increasing the air intake volume.

[0299] In some embodiments, as Figure 24 and Figure 25 shown, the cleaning device provided by the embodiment of the present application further includes a water blocking structure. An installation hole is provided on the first wall surface of the inner tank 1 of the cleaning device. The water blocking structure includes: an air duct 21 and a water blocking cover 24.

[0300] As Figure 25 and Figure 26 shown, the air inlet end 20 of the air duct 21 has a flanging 201, and the flanging 201 is adapted to extend into the inner tank 1 from the installation hole; the water blocking cover 24 includes a connected water blocking plate 241 and an installation structure 242, and the installation structure 242 is connected to the flanging 201. The projection of the water blocking plate 241 on the first wall surface covers the projection of the air inlet end 20 on the first wall surface, and an air inlet 211 is formed between the water blocking cover 24 and the flanging 201.

[0301] Among them, the first wall surface of the inner tank 1 of the cleaning device may be the top wall 12, the side wall 13 or the bottom wall 16 of the inner tank 1, which can be specifically set according to the installation scenario of the cleaning device. The installation hole may be a through hole, and the installation hole is used to install the air duct 21.

[0302] The air inlet end 20 of the air duct 21 has a flanging 201, and the flanging 201 is connected to the installation hole in a matching manner. The flanging 201 and the installation hole can be connected by connection methods such as snap connection, knob connection or screw connection.

[0303] Among them, the water blocking cover 24 has the functions of ventilation and water blocking. The water blocking cover 24 can be arranged between the fan 22 and the cleaning chamber 11, and the water blocking cover 24 is located in the cleaning chamber 11.

[0304] An air inlet 211 is formed between the water blocking cover 24 and the flanging 201. The fan 22 sucks the gas in the cleaning chamber 11 into the air duct 21 through the air inlet 211. The number of the air inlets 211 can be set to one or more, and the shape of the air inlet 211 can be strip-shaped or surface-shaped, which can be specifically set according to the actual installation situation.

[0305] Among them, the mounting structure 242 and the flanging 201 can be connected by connection means such as snap fasteners, knobs or screw connections. The water baffle 241 is connected to the flanging 201 at the air inlet end 20 of the air duct 21 through the mounting structure 242. The water baffle 241 and the mounting structure 242 can be connected by connection means such as integral molding, welding or screw connection.

[0306] In the case where the mounting structure 242 and the flanging 201 are connected by screw connection, both the mounting structure 242 and the flanging 201 are provided with meshing threads, and the mounting structure 242 and the flanging 201 are connected by screw meshing.

[0307] In the case where the mounting structure 242 and the flanging 201 are connected by a knob, the mounting structure 242 and the flanging 201 can be provided with structures that engage with each other. After the mounting structure 242 and the flanging 201 are rotated by a certain angle, the mounting structure 242 and the flanging 201 are snap-connected.

[0308] According to the water blocking structure provided by the embodiment of the present application, by providing the air duct 21 and the water blocking cover 24, and the projection of the water baffle 241 on the first wall covers the projection of the air inlet end 20 on the first wall, it is possible to reduce the situation that the water flow directly enters the air duct 21 during the cleaning process of the cleaning equipment and directly impacts the inside of the fan 22 to cause pollution of the impeller 222, playing a protective role, and at the same time improving the air volume of the fan 22, which is beneficial to using a higher-power heater 23 downstream of the fan 22 to accelerate the drying process.

[0309] In some embodiments, such as Figure 26 As shown, there are multiple mounting structures 242. The multiple mounting structures 242 are spaced apart circumferentially around the water baffle 241, and an air inlet 211 is formed between two adjacent mounting structures 242.

[0310] Among them, the mounting structure 242 can be provided with 2, 3 or more. The multiple mounting structures 242 can be evenly distributed circumferentially around the water baffle 241, or can be arranged at different angles according to requirements. The number and distribution mode of the mounting structures 242 can be set according to the actual use scenario.

[0311] By adding multiple mounting structures 242, multi-point connection between the water blocking cover 24 and the air inlet end 20 of the air duct 21 can be achieved, improving the reliability of the connection.

[0312] In some embodiments, the flanging 201 includes multiple ones that are spaced apart circumferentially along the air inlet end 20. First, the multiple flangings 201 can be connected to the multiple mounting structures 242, and then the multiple flangings 201 and the multiple mounting structures 242 are rotated by a certain angle so that the multiple flangings 201 and the multiple mounting structures 242 are connected in one-to-one correspondence.

[0313] In this embodiment, the number and installation positions of the flanges 201 match the installation structure 242. By providing a plurality of flanges 201 connected to the plurality of installation structures 242 in a one-to-one correspondence, the connection points between the water baffle 24 and the air inlet end 20 of the air duct 21 can be increased, improving the connection reliability.

[0314] In some embodiments, as Figure 26 shown, the plurality of flanges 201 and the plurality of installation structures 242 are assembled or disassembled by a knob method, and the connection method is simple and convenient.

[0315] Among them, the plurality of flanges 201 are spaced apart circumferentially along the air inlet end 20, and the plurality of installation structures 242 are spaced apart circumferentially around the water baffle 241. Before connecting the water baffle 24 to the air inlet end 20 of the air duct 21, each of the plurality of installation structures 242 can be located between two adjacent flanges 201, and then the water baffle 24 is rotated by a certain angle relative to the air inlet end 20 of the air duct 21 so that the projection of the flange 201 on the air inlet end 20 in the axial direction of the air duct 21 has an overlapping part. At this time, the water baffle 24 is snap-connected to the air inlet end 20 of the air duct 21.

[0316] In some embodiments, the installation structure 242 includes a slot 2421 that opens radially inward, and the flange 201 is inserted into the slot 2421. By rotating the water baffle 24, the area of the flange 201 located in the slot 2421 can be adjusted, facilitating assembly or disassembly.

[0317] In this embodiment, when there is one flange 201, the flange 201 extends circumferentially along the air inlet end 20, and the flange 201 has a notch. The installation structure 242 inserts the flange 201 into the slot 2421 through the notch; when there are multiple flanges 201, the multiple flanges 201 are spaced apart circumferentially along the air inlet end 20, and the interval between two adjacent flanges 201 of the installation structure 242 inserts each flange 201 into one or more slots 2421.

[0318] In some embodiments, as Figure 26 shown, the installation structure 242 includes: a connecting member 2422 and a clamping joint 2423; the connecting member 2422 is connected to the water baffle 241; the clamping joint 2423 is connected to the connecting member 2422, and the clamping joint 2423 is provided with a slot 2421.

[0319] Among them, the clamping joint 2423, the connecting member 2422, and the water baffle 241 can be connected by connection methods such as integral molding, welding, or gluing.

[0320] The connecting member 2422 can be connected to the edge, middle, or the area between the edge and the middle of the water baffle 241.

[0321] In some embodiments, asFigure 26 As shown, the card connector 2423 is located radially outside the water baffle 241, and the radially outer wall of the card connector 2423 is arc-shaped.

[0322] Among them, as Figure 27 shown, the card connector 2423 is located radially outside the water baffle 241, that is, there is a certain interval between the outside of the card connector 2423 and the radially outer side of the water baffle 241. When the card connector 2423 is connected to the flanging 201, an air inlet 211 is formed between the water baffle 241 and the flanging 201.

[0323] By setting the radially outer wall of the card connector 2423 to be arc-shaped, it is convenient for the radially outer wall of the card connector 2423 to match the inner wall 13 of the air inlet end 20 of the air duct 21.

[0324] In some embodiments, the connecting member 2422 has a hollow groove 24221. One or more hollow grooves 24221 can be provided, and the number and hollow area of the hollow grooves 24221 can be set according to the area of the connecting member 2422.

[0325] By providing the hollow groove 24221, the connecting member 2422 can be lightened in weight to reduce the material cost.

[0326] In some embodiments, the radially inner ends of the connecting members 2422 of the plurality of mounting structures 242 are connected by an annular rib 2411 connected to the bottom surface of the water baffle 241.

[0327] Among them, the bottom surface of the water baffle 241 is provided with an annular rib 2411. The annular rib 2411 can be concentric with the water baffle 241 or eccentric with the water baffle 241. The annular rib 2411 can be connected to the bottom surface of the water baffle 241 by connection methods such as integral molding, welding or gluing. The radially inner ends of the connecting members 2422 of the plurality of mounting structures 242 can be connected to the annular rib 2411 by connection methods such as integral molding, welding or gluing.

[0328] In this embodiment, as Figure 26 shown, the radially inner ends of the connecting members 2422 of the plurality of mounting structures 242 are connected to the annular rib 2411, and the connecting members 2422 of the plurality of mounting structures 242 can be connected, improving the connection stability between the plurality of mounting structures 242 and the water baffle 241.

[0329] In some embodiments, as Figure 25 shown, the first wall surface is provided with a mounting boss 121 that surrounds the mounting hole and protrudes into the cleaning chamber 11. The water blocking structure further includes: a sealing ring, and the sealing ring is clamped between the mounting boss 121 and the air duct 21.

[0330] Wherein, an installation space is formed between the installation boss 121 and the air inlet end 20 of the air duct 21. The sealing ring is located in the installation space, and the sealing between the installation boss 121 and the air duct 21 can be achieved by extruding the sealing ring.

[0331] Wherein, the sealing ring can be made of rubber, plastic or other elastic materials, which can increase the seal between the air inlet end 20 of the air duct 21 and the inner tank 1, reduce the leakage of water vapor in the cleaning chamber 11, and improve the safety and reliability of the cleaning device.

[0332] In some embodiments, as Figure 25 shown, the distance between the end face of the installation boss 121 and the surface of the water baffle 24 is Δh4, satisfying: Δh4≥5mm.

[0333] Wherein, the distance Δh4 between the end face of the installation boss 121 and the surface of the water baffle 24 can be 5mm, 6mm, 8mm or a larger value. By setting the distance between the end face of the installation boss 121 and the surface of the water baffle 24, the air intake volume of the air duct 21 can be increased, the situation of overheating of the power wall surface of the heater 23 can be reduced, and potential safety hazards can be reduced.

[0334] In some embodiments, as Figure 28 and Figure 30 shown, the water baffle 24 includes: a main cover body 243 and a plurality of water baffle members 244 groups; the main cover body 243 has an installation structure 242 for installing on the whole machine and forms a ventilation duct 2432; the plurality of water baffle members 244 groups are arranged at intervals along the axial direction of the ventilation duct 2432, and each water baffle member 244 group includes a plurality of water baffle members 244 arranged at intervals in a direction crossing the axial direction of the ventilation duct 2432, and the projections of the plurality of water baffle members 244 groups along the axial direction of the ventilation duct 2432 cover the projection of the inlet end of the ventilation duct 2432 along the axial direction.

[0335] Wherein, the main cover body 243 is used to connect with the whole machine and the plurality of water baffle members 244 groups, and the main cover body 243 forms a ventilation duct 2432 to realize the circulation of air in the cleaning chamber 11.

[0336] The main cover body 243 can be connected with the whole machine by means of snap connection, threaded connection or welding, etc., and the main cover body 243 and the plurality of water baffle members 244 groups can be connected by means of integral molding, welding or gluing, etc.

[0337] The whole machine has a structural member connected to the installation structure 242. When the main cover 243 is connected to the whole machine by a snap connection, one of the installation structure 242 and the structural member is a fixed buckle, and the other of the installation structure 242 and the structural member is a connecting member 2422. The connecting member 2422 is inserted into the fixed buckle to lock the main cover 243 and the whole machine together; or, when the main cover 243 is connected to the whole machine by a threaded connection, the installation structure 242 and the structural member have mutually meshing threads, and the installation structure 242 and the structural member are locked together by thread fitting to lock the main cover 243 and the whole machine together.

[0338] Among them, as Figure 30 shown, there are multiple groups of water baffle members 244, and the multiple groups of water baffle members 244 are arranged at intervals along the axial direction of the ventilation duct 2432. The number of groups of water baffle members 244 can be 2, 3 or more layers. The specific number can be set according to the axial length of the ventilation duct 2432. The adjacent two groups of water baffle members 244 are spaced apart to achieve ventilation. The setting of the multiple groups of water baffle members 244 can enhance the water blocking effect.

[0339] Among them, multiple water baffle members 244 are arranged at intervals in a direction intersecting the axial direction of the ventilation duct 2432. The number of water baffle members 244 can be 3, 4 or more. The number of water baffle members 244 in each group of water baffle members 244 can be the same or different. The number of water baffle members 244 in each group of water baffle members 244 can be determined according to the cross-sectional area of the ventilation duct 2432 in the plane where it is located.

[0340] As Figure 30 shown, the arrows in the figure indicate the air flow direction. The adjacent two water baffle members 244 are spaced apart to achieve ventilation. The projection of the multiple groups of water baffle members 244 along the axial direction of the ventilation duct 2432 covers the projection of the inlet end of the ventilation duct 2432 along the axial direction, so that the air flow is sucked into the air duct 21 in a zigzag shape along the interval between the adjacent two groups of water baffle members 244 and the interval between the adjacent two water baffle members 244, effectively blocking the entry of water and ensuring the circulation of gas at the same time.

[0341] Among them, multiple water baffle members 244 can be arranged at intervals in a direction perpendicular to the axial direction of the cross-section of the ventilation duct 2432, and the lengths of the multiple water baffle members 244 gradually change along the radial direction of the cross-section of the ventilation duct 2432, so that the ends of the multiple water baffle members 244 are connected to the inner wall of the ventilation duct 2432; or, multiple water baffle members 244 can be arranged at intervals in a direction inclined at an acute angle to the axial direction of the ventilation duct 2432.

[0342] As Figure 29As shown, the sum of the projections of multiple groups of water baffle members 244 along the axial direction of the ventilation duct 2432 is equal to or greater than the projection of the inlet end of the ventilation duct 2432 along the axial direction, so as to achieve full coverage of the ventilation duct 2432 by multiple groups of water baffle members 244.

[0343] Among them, the water baffle member 244 can be structures such as a water baffle rib, a water baffle film or a water baffle plate 241, etc.

[0344] According to the water baffle cover 24 provided by the embodiment of the present application, by arranging multiple groups of water baffle members 244 spaced apart along the axial direction of the ventilation duct 2432, each group of water baffle members 244 includes multiple water baffle members 244 spaced apart along a direction intersecting with the axial direction of the ventilation duct 2432, and the projections of the multiple groups of water baffle members 244 along the axial direction of the ventilation duct 2432 cover the projection of the inlet end of the ventilation duct 2432 along the axial direction, so that the air flow is sucked into the air duct 21 by the fan 22 in a zigzag shape along the intervals between adjacent two groups of water baffle members 244 and the intervals between adjacent two water baffle members 244, which can reduce the situation that the water flow directly enters the air duct 21 during the cleaning process of the cleaning equipment and directly impacts the inside of the fan 22 to cause pollution of the impeller 222, playing a protective role, and at the same time also improving the air volume of the fan 22, which is beneficial to using a higher-power heater 23 downstream of the fan 22 to accelerate the drying process.

[0345] Among them, the multiple water baffle members 244 can be distributed in parallel in the plane where they are located, or can be distributed crosswise with each other.

[0346] In some embodiments, the water baffle members 244 in multiple groups of water baffle members 244 are arranged in parallel at intervals to equalize the flow velocity and air volume of the air flow.

[0347] In some embodiments, the distance between adjacent two water baffle members 244 in multiple groups of water baffle members 244 is equal to further equalize the flow velocity and air volume of the air flow.

[0348] In some embodiments, as Figure 30 shown, on the side of the water baffle member 244 facing away from the inlet end of the ventilation duct 2432, there is a guiding surface 2443, and the guiding surface 2443 is inclined towards the outside of the water baffle member 244 along the direction close to the inlet end of the ventilation duct 2432.

[0349] Among them, the guiding surface 2443 can be a plane or an arc surface.

[0350] By arranging the guiding surface 2443, the water vapor in the cleaning chamber 11 encountering the condensate generated by the fan 22 can flow back into the cleaning chamber 11 along the guiding surface 2443, reducing the residence time of the condensate in the water baffle member 244 and increasing the drying effect inside the chamber.

[0351] In some embodiments, as Figure 30As shown, the water baffle 244 includes a first plate 2441 and a second plate 2442. One side of the first plate 2441 facing away from the inlet end of the ventilation duct 2432 is connected to one side of the second plate 2442 facing away from the inlet end of the ventilation duct 2432. The normal lines of the first plate 2441 and the second plate 2442 are both at an acute angle to the axial direction of the ventilation duct 2432. The surfaces of the first plate 2441 facing away from the inlet end of the ventilation duct 2432 and the second plate 2442 facing away from the inlet end of the ventilation duct 2432 form a flow guiding surface 2443.

[0352] Wherein, the first plate 2441 and the second plate 2442 can be symmetrically arranged along their connection, or can be asymmetrically arranged, and can be specifically set according to the actual use scenario. In the case where the first plate 2441 and the second plate 2442 are asymmetrically arranged, the lengths or widths of the first plate 2441 and the second plate 2442 can be different.

[0353] Wherein, one side of the first plate 2441 and the second plate 2442 facing away from the inlet end of the ventilation duct 2432 is connected, and one side of the first plate 2441 and the second plate 2442 close to the inlet end of the ventilation duct 2432 is spaced apart. The first plate 2441 and the second plate 2442 form a bracket-shaped interception structure, which can increase the resistance of water flow, reduce the entry of water flow, and at the same time will not generate a large resistance to the air flow.

[0354] By setting the water baffle 244 to have a double-sided flow guiding surface 2443, the condensed water generated by the fan 22 can flow back into the cleaning chamber 11 along the flow guiding surface 2443, reducing the residence time of the condensed water in the water baffle 244 and increasing the drying effect in the chamber. At the same time, it can intercept the water vapor flowing into the air duct 21 along with the water vapor, reduce the amount of water entering the air duct 21, and protect the electrical components such as the fan 22 and the heater 23 in the air duct 21.

[0355] In some embodiments, as Figure 30 shown, the main cover 243 includes: a pipe body 2431 and a flange 2433; the pipe body 2431 forms a ventilation duct 2432; the flange 2433 is connected to the outer periphery of the pipe body 2431 and is arranged around the pipe body 2431. An installation structure 242 is provided on one side of the pipe body 2431 facing away from the inlet end of the ventilation duct 2432 of the flange 2433.

[0356] Wherein, the pipe body 2431 has a certain axial length, which can increase the number of groups of the water baffle 244 and improve the water blocking effect.

[0357] The flange 2433 can be circular. The flange 2433 is arranged around the pipe body 2431. The inner side of the flange 2433 is connected to the outer periphery of the pipe body 2431, and the outer side of the flange 2433 extends in a direction away from the pipe body 2431. The width of the flange 2433 is set according to the actual installation environment of the water blocking cover 24.

[0358] The provision of the flange 2433 can increase the overlapping area when the water baffle cover 24 is connected to the whole machine, thereby enhancing the sealing effect.

[0359] In some embodiments, as Figure 28 shown, there are multiple mounting structures 242. The multiple mounting structures 242 are spaced apart around the tube body 2431, and the multiple mounting structures 242 are assembled or disassembled with the whole machine by means of a knob.

[0360] Among them, the number of the mounting structures 242 can be set to 2, 3 or more. The multiple mounting structures 242 can be evenly distributed circumferentially around the tube body 2431, or can be arranged at different angles according to requirements. The number and distribution mode of the mounting structures 242 can be set according to the actual usage scenario.

[0361] By adding multiple mounting structures 242, multi-point connection between the main cover body 243 and the whole machine can be achieved, thereby improving the reliability of the connection.

[0362] Before connecting the mounting structure 242 to the whole machine, each mounting structure 242 among the multiple mounting structures 242 can be located between the whole machine and the notch corresponding to the mounting structure 242. Then, the main cover body 243 is rotated by a certain angle relative to the air inlet end 20 of the whole machine so that the connecting member 2422 of the whole machine and the mounting structure 242 have an overlapping part in the axial direction of the ventilation channel 2432. At this time, the mounting structure 242 and the whole machine are snap-connected.

[0363] In some embodiments, as Figure 28 shown, the tube body 2431 is provided with a water guide port 2434, and the water guide port 2434 is flush with the side of the flange 2433 facing away from the inlet end of the ventilation channel 2432.

[0364] Among them, the water guide port 2434 communicates with the ventilation channel 2432 and the air duct 21. The condensed water generated when the water vapor in the air flow condenses on the flange 2433 or the tube body 2431 can flow into the ventilation channel 2432 from the water guide port 2434 and then flow back into the cleaning chamber 11, reducing the residence time of the condensed water in the water baffle member 244 and increasing the drying effect inside the cavity.

[0365] In some embodiments, as Figure 30 shown, the side of the flange 2433 facing away from the inlet end of the ventilation channel 2432 slopes downward towards the radially inner end, so that the condensed water can flow along the inclined side of the flange 2433 into the water guide port 2434, thereby further reducing the residence time of the condensed water in the water baffle member 244 and increasing the drying effect inside the cavity.

[0366] In some embodiments, as Figure 28As shown, a sealing installation position 24331 for installing a sealing member is provided on the side of the flange 2433 facing away from the inlet end of the air passage 2432.

[0367] The sealing installation position 24331 is used to install a sealing component, which may be a sealing strip, a sealing ring, a sealing gasket or other components.

[0368] The sealing installation position 24331 can be a groove, a protrusion or a flat structure. The seal is installed in the sealing installation position 24331. The seal between the flange 2433 and the entire machine can be achieved by squeezing the seal. The structure of the sealing installation position 24331 is determined according to the type of seal.

[0369] In some embodiments, as Figure 28 As shown, the side of the flange 2433 facing away from the inlet end of the air duct 2432 is provided with multiple pairs of protrusions 24332 distributed circumferentially around the tube body 2431, each pair of protrusions 24332 includes two protrusions 24332 arranged radially spaced apart, and multiple pairs of protrusions 24332 form a sealing mounting position 24331.

[0370] The two protrusions 24332 are spaced apart to form a groove, and at least a portion of the seal is clamped between the two protrusions 24332 .

[0371] By providing multiple pairs of protrusions 24332, which are spaced apart and distributed around the circumference of the tube body 2431, multi-point fixation of the seal can be achieved, which limits the position and deformation of the seal and improves the sealing performance.

[0372] In some embodiments, as Figure 31 As shown, a reinforcing rib 24333 is provided between one side of the flange 2433 close to the inlet end of the air passage 2432 and the outer side wall of the tube body 2431 .

[0373] The reinforcing ribs 24333 can be connected to the flange 2433 and the outer wall of the tube body 2431 by integral molding, welding, gluing, etc. The reinforcing ribs 24333 can be straight, curved, or other specific shapes, depending on the desired reinforcement effect and structural form.

[0374] By providing the reinforcing ribs 24333 , the stress and pressure from the external environment can be effectively dispersed and withstood, deformation, cracking or loosening of the connection between the flange 2433 and the tube body 2431 can be prevented, and the connection strength and stability between the flange 2433 and the tube body 2431 can be improved.

[0375] The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of this application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same category, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally indicates an "or" relationship between the associated objects before and after.

[0376] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of this application.

[0377] In the description of this application, the "first feature" and "second feature" may include one or more of such features.

[0378] In the description of this application, the meaning of "a plurality" is two or more.

[0379] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween.

[0380] In the description of this application, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher horizontal level than the second feature.

[0381] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0382] Although embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application. The scope of the present application is defined by the claims and their equivalents.

Claims

1. A cleaning device, characterized in that, Comprising: An inner container, forming a cleaning chamber; An exhaust assembly, installed on the inner container and configured to discharge the gas in the cleaning chamber when it is turned on; An air duct, installed on the inner container and having an air inlet, a make-up air inlet, and an air outlet. The air inlet and the air outlet are both in communication with the cleaning chamber, and the make-up air inlet is in communication with the outside; A valve, the damper of the valve is pivotally installed on the air duct between a first position and a second position. In the first position, the damper closes the make-up air inlet, and in the second position, the damper closes the air inlet; A fan, installed on the air duct, and both the air inlet and the make-up air inlet are in communication with the inlet of the fan, and the outlet of the fan is in communication with the air outlet; A heater, configured to heat the gas flowing through the air duct when it is turned on.

2. The cleaning device according to claim 1, wherein The cleaning device has an internal circulation drying working mode. In the internal circulation drying working mode, the fan and the heater work, the exhaust assembly stops working, and the damper is in the first position; And / or, the cleaning device has an external circulation drying working mode. In the external circulation drying working mode, the fan, the heater, and the exhaust assembly all work, and the damper is in the second position; And / or, the cleaning device has a mixed working mode; in the mixed working mode, the fan, the heater, and the exhaust assembly all work, the damper is between the first position and the second position, and the air flow rate inhaled from the air inlet ≤ the air flow rate inhaled from the make-up air inlet; And / or, the cleaning device has a mixed dehumidification working mode; in the mixed dehumidification working mode, the fan and the exhaust assembly both work, and the heater stops working.

3. The cleaning device according to claim 1, wherein When the exhaust assembly is working, the exhaust volume of the exhaust assembly is not less than the gas volume entering the cleaning chamber from the outside.

4. The cleaning device according to claim 1, characterized in that, When the exhaust assembly and the fan are working, the exhaust volume of the exhaust assembly is not less than the gas volume entering the cleaning chamber from the outside.

5. The cleaning device according to claim 1, characterized in that, The air duct includes: An upper air duct, which is provided with the air inlet and the make-up air inlet. The fan and the valve are installed on the upper air duct, and at least part of the upper air duct is installed above the inner container; A lower air duct, the inlet of the lower air duct is connected to the outlet of the upper air duct, and the lower air duct is provided with the air outlet.

6. The cleaning device according to claim 5, characterized in that, The projection of the make-up air inlet on the top wall of the inner container is located between the projection of the fan on the top wall of the inner container and the projection of the air inlet on the top wall of the inner container.

7. The cleaning device according to claim 5, wherein, The air inlet is arranged downward, and the make-up air inlet is arranged upward.

8. The cleaning device according to claim 7, characterized in that, The bottom wall of the upper air duct opposite to the make-up air inlet is provided with an inclined first support surface, and at least part of the periphery of the make-up air inlet is provided with a second support surface. In the second position, the lower surface of the damper fits with the first support surface and the second support surface.

9. The cleaning device according to claim 5, characterized in that The blower includes: an upper housing, an impeller, and a motor assembly. The motor assembly is power-coupled to the impeller. The upper housing is connected to the upper air duct to form a receiving cavity, and the impeller is installed in the receiving cavity.

10. The cleaning device according to any one of claims 5-9, characterized in that, It further includes: a side plate. The heater is installed in a region of the air duct on the side of the inner tank. The side plate is installed on the side wall of the inner tank and covers the outer side of the lower air duct. The inner side surface of the side plate is spaced apart from the lower air duct.

11. The cleaning device according to any one of claims 1-9, characterized in that, The power of the heater is P, satisfying: P ≤ 500 W.

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