Cleaning apparatus

Abstract

A cleaning apparatus, comprising: an inner container (1), an air exhaust assembly (4), an air duct (21), a blower fan (22) and a heater (23). The inner container (1) forms a cleaning chamber (11). The air exhaust assembly (4) is mounted on the inner container (1), an air intake (41) of the air exhaust assembly (4) leading to the cleaning chamber (11). The air exhaust assembly (4) is configured to discharge air out of the cleaning chamber (11) when being turned on. The air duct (21) is mounted on the inner container (1) and is provided with an air inlet (211) and an air outlet (212), the air inlet (211) and the air outlet (212) both leading to the cleaning chamber (11). The blower fan (22) is configured to drive the air in the air duct (21) when being turned on. The heater (23) is configured to heat the air flowing through the air duct (21) when being turned on. The air inlet (211), the air outlet (212) and the air intake (41) are at least arranged on two different wall surfaces of the cleaning chamber (11).

Description

cleaning equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application with application number: 202420259755.2 and application date of February 1, 2024, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby introduced into this application as a reference. Technical Field

[0003] The present application relates to the field of household appliances, and in particular to a cleaning device. Background Art

[0004] Dishwashers and other cleaning equipment have various drying methods, including condensation drying, hot air drying, adsorption drying, and open-door quick drying. Condensation drying has issues such as poor drying performance and long drying times; adsorption drying is expensive and can produce odors after prolonged storage; and open-door quick drying can easily attract insects and prevent the door from automatically closing in humid areas. Therefore, considering both cost and drying performance, hot air drying has become the preferred method for most manufacturers.

[0005] Currently, most cleaning appliances, such as dishwashers, rely on external circulation systems for hot air drying. This system draws in outside air, heats it with a heater, and then introduces it into the cleaning chamber to dry the items inside. During the hot air drying process, the outside air drawn into the cleaning chamber creates a positive pressure. To maintain a constant pressure in the cleaning chamber, the cleaning appliance's exhaust system is typically turned on to minimize water vapor leakage caused by this positive pressure.

[0006] However, opening the exhaust component will cause the heat energy of the heated air to be discharged from the cleaning chamber without being fully utilized, resulting in problems such as high energy consumption, low drying efficiency and poor drying effect, which need to be improved.

[0007] Summary of the Invention

[0008] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a cleaning device that improves the utilization rate of hot air heat energy and reduces the energy consumption of the hot air drying mode of the cleaning device, thereby achieving energy saving, compared with cleaning devices that use hot air drying through external circulation.

[0009] In a first aspect, the present application provides a cleaning device, comprising:

[0010] The inner tank forms a cleaning chamber;

[0011] an exhaust assembly installed in the inner tank, an air inlet of the exhaust assembly being in communication with the cleaning chamber, and the exhaust assembly being configured to discharge the gas in the cleaning chamber when opened;

[0012] an air duct, mounted on the inner tank and having an air inlet and an air outlet, wherein the air inlet and the air outlet are both connected to the cleaning chamber;

[0013] a heater, configured to heat the gas in the air duct when turned on;

[0014] A fan is configured to drive the gas in the air duct when turned on; wherein,

[0015] The air inlet, the air outlet, and the air intake are arranged on at least two different wall surfaces of the cleaning chamber.

[0016] According to the cleaning device provided by the embodiment of the present application, by providing internal circulation components such as an air duct, a blower, and a heater, on the one hand, the air inlet and the air outlet of the air duct are both connected to the cleaning chamber, the gas in the cleaning chamber is sucked into the air duct from the air inlet of the air duct by the blower, and the hot air heated by the heater enters the cleaning chamber from the air outlet of the air duct, and the dry gas in the cleaning chamber is circulated and heated by the heater to achieve hot air drying of the dishes in the cleaning chamber; on the other hand, by arranging the air inlet of the air duct, the air outlet of the air duct, and the air inlet of the exhaust component on at least two different walls of the cleaning chamber, the path of the hot air flow in the cleaning chamber can be extended, the utilization efficiency of the hot air thermal energy can be improved, and the uniformity of gas mixing in the cleaning chamber can be improved, and the drying dead corners can be reduced. Compared with cleaning devices that perform hot air drying through external circulation, the utilization rate of the hot air thermal energy is improved, the energy consumption of the hot air drying mode of the cleaning device is reduced, and the effect of drying the entire cleaning chamber and the dead corners is significantly improved.

[0017] According to one embodiment of the present application, the air inlet, the air outlet and the air inlet of the exhaust assembly are respectively arranged on three walls of the cleaning chamber.

[0018] According to one embodiment of the present application, the air inlet is located on the top wall of the cleaning chamber, the air outlet is located at the lower part of one side of the cleaning chamber, and the air inlet is located at the upper part of the other side of the cleaning chamber.

[0019] According to one embodiment of the present application, the air outlet is arranged near the rear bottom corner of the cleaning chamber, and the cleaning equipment has an internal circulation drying working mode. In the internal circulation drying working mode, the fan and the heater are working, and the exhaust component is stopped.

[0020] According to one embodiment of the present application, the cleaning device has a dehumidification negative pressure working mode. In the dehumidification negative pressure working mode, the fan and the heater are stopped, and the exhaust component is working.

[0021] According to one embodiment of the present application, the cleaning device has a mixed working mode; in the mixed working mode, the fan, the heater and the exhaust assembly are all working.

[0022] According to one embodiment of the present application, the cleaning device has a mixed dehumidification working mode; in the mixed dehumidification working mode, the fan and the exhaust assembly are both working, and the heater is stopped.

[0023] According to an embodiment of the present application, when the exhaust assembly is in operation, the exhaust volume of the exhaust assembly is not less than the volume of gas entering the cleaning chamber from the outside.

[0024] According to one embodiment of the present application, the air duct includes a supply air branch, the supply air inlet of the supply air branch is connected to the outside, and the supply air outlet of the supply air branch is connected to the cleaning chamber.

[0025] According to one embodiment of the present application, when the exhaust assembly and the fan are working, the exhaust volume of the exhaust assembly is not less than the air supply volume of the air supply branch.

[0026] According to one embodiment of the present application, it further includes: a side panel, the heater is installed in the area of ​​the air duct located on the side of the inner tank, the side panel is installed on the side wall of the inner tank, and the cover is arranged outside at least part of the air duct.

[0027] According to one embodiment of the present application, the inner side surface of the side panel is spaced from the air duct, and the spacing is c, satisfying c≥2mm.

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

[0029] According to one embodiment of the present application, the fan includes: an upper shell, an impeller and a motor assembly, the motor assembly is dynamically coupled to the impeller, the upper shell is connected to the air duct to form an accommodating cavity, and the impeller is installed in the accommodating cavity.

[0030] In a second aspect, the present application provides a cleaning device, comprising:

[0031] The inner tank forms a cleaning chamber;

[0032] an exhaust assembly installed in the inner tank, an air inlet of the exhaust assembly being in communication with the cleaning chamber, and the exhaust assembly being configured to discharge the gas in the cleaning chamber when opened;

[0033] an air duct, mounted on the inner tank and having an air inlet and an air outlet, wherein the air inlet and the air outlet are both connected to the cleaning chamber;

[0034] a heater, configured to heat the gas in the air duct when turned on;

[0035] A fan is configured to drive the gas in the air duct when turned on; wherein,

[0036] The air inlet, the air outlet, and the air intake are arranged on at least two different wall surfaces of the cleaning chamber.

[0037] According to the cleaning device provided by the embodiment of the present application, by providing internal circulation components such as an air duct, a blower, and a heater, on the one hand, the air inlet and the air outlet of the air duct are both connected to the cleaning chamber, the gas in the cleaning chamber is sucked into the air duct from the air inlet of the air duct by the blower, and the hot air heated by the heater enters the cleaning chamber from the air outlet of the air duct, and the dry gas in the cleaning chamber is circulated and heated by the heater to achieve hot air drying of the dishes in the cleaning chamber; on the other hand, by arranging the air inlet of the air duct, the air outlet of the air duct, and the air inlet of the exhaust component on at least two different walls of the cleaning chamber, the path of the hot air flow in the cleaning chamber can be extended, the utilization efficiency of the hot air thermal energy can be improved, and the uniformity of gas mixing in the cleaning chamber can be improved, and the drying dead corners can be reduced. Compared with cleaning devices that perform hot air drying through external circulation, the utilization rate of the hot air thermal energy is improved, the energy consumption of the hot air drying mode of the cleaning device is reduced, and the effect of drying the entire cleaning chamber and the dead corners is significantly improved.

[0038] According to one embodiment of the present application, the air inlet, the air outlet and the air inlet of the exhaust assembly are respectively arranged on three walls of the cleaning chamber.

[0039] According to one embodiment of the present application, the air inlet is located on the top wall of the cleaning chamber, the air outlet is located at the lower part of one side of the cleaning chamber, and the air inlet is located at the upper part of the other side of the cleaning chamber.

[0040] According to one embodiment of the present application, the air outlet is arranged near the rear bottom corner of the cleaning chamber, and the cleaning device has an internal circulation drying working mode. In the internal circulation drying working mode, the fan and the heater are working, and the exhaust component is stopped;

[0041] And / or, the cleaning device has a dehumidification negative pressure working mode, in which the fan and the heater are stopped and the exhaust component is working;

[0042] And / or, the cleaning device has a mixed working mode; in the mixed working mode, the fan, the heater and the exhaust assembly are all working;

[0043] And / or, the cleaning device has a mixed dehumidification working mode; in the mixed dehumidification working mode, the fan and the exhaust component are both working, and the heater is stopped.

[0044] According to an embodiment of the present application, when the exhaust assembly is in operation, the exhaust volume of the exhaust assembly is not less than the volume of gas entering the cleaning chamber from the outside.

[0045] According to one embodiment of the present application, the air duct includes an air supply branch, the air supply inlet of the air supply branch is connected to the outside world, and the air supply outlet of the air supply branch is connected to the cleaning chamber. When the exhaust component and the fan are working, the exhaust volume of the exhaust component is not less than the air supply volume of the air supply branch.

[0046] According to one embodiment of the present application, it further includes: a side panel, the heater is installed in the area of ​​the air duct located on the side of the inner tank, the side panel is installed on the side wall of the inner tank, and the cover is arranged outside at least part of the air duct.

[0047] According to one embodiment of the present application, the inner side surface of the side panel is spaced from the air duct, and the spacing is c, satisfying c≥2mm.

[0048] According to one embodiment of the present application, the power of the heater is P, which satisfies: P≤500W.

[0049] According to one embodiment of the present application, the fan includes: an upper shell, an impeller and a motor assembly, the motor assembly is dynamically coupled to the impeller, the upper shell is connected to the air duct to form an accommodating cavity, and the impeller is installed in the accommodating cavity.

[0050] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0052] FIG1 is a schematic diagram of a cleaning device according to an embodiment of the present invention;

[0053] FIG2 is a second structural diagram of a cleaning device provided in an embodiment of the present application;

[0054] FIG3 is a schematic diagram of the structure of an internal circulation component provided in an embodiment of the present application;

[0055] FIG4 is a third structural diagram of a cleaning device provided in an embodiment of the present application;

[0056] FIG5 is a fourth structural diagram of a cleaning device provided in an embodiment of the present application;

[0057] FIG6 is a second structural diagram of an internal circulation assembly provided in an embodiment of the present application;

[0058] FIG7 is a fifth structural diagram of a cleaning device provided in an embodiment of the present application;

[0059] FIG8 is a partial enlarged view of point B in FIG7;

[0060] FIG9 is a sixth structural diagram of a cleaning device provided in an embodiment of the present application;

[0061] FIG10 is a partial enlarged view of point A in FIG9 ;

[0062] FIG11 is a seventh structural diagram of a cleaning device provided in an embodiment of the present application;

[0063] FIG12 is an eighth structural diagram of the cleaning device provided in an embodiment of the present application.

[0064] Figure numerals: Inner tank 1, cleaning chamber 11, first side 111, second side 112; top wall 12, side wall 13, back panel 14, front opening 15, bottom wall 16; internal circulation component 2, air duct 21, air inlet 211, air outlet 212, air supply branch 213, air supply inlet 2131, grille 2156; fan 22, upper shell 221, impeller 222; heater 23, water retaining cover 24, sealing device 25; side panel 3, exhaust component 4, air inlet 41, bowl basket 5. DETAILED DESCRIPTION

[0065] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0066] The following describes a cleaning device according to an embodiment of the present application with reference to Figures 1 to 12. The cleaning device of the present application can clean and dry various items such as tableware and clothing.

[0067] The cleaning device may be a dishwasher, clothes dryer, or shoe washer, etc., which has a hot air drying function. In the embodiments of the present invention, the cleaning device includes both a cleaning function and a hot air drying function. The cleaning mechanism in the cleaning function cleans the items in the cleaning chamber 11. After cleaning, the hot air drying process begins. Drying the items in the cleaning chamber 11 can reduce bacterial growth. For ease of explanation, this application uses a dishwasher as an example.

[0068] As shown in Figures 1, 2 and 3, the cleaning device of the embodiment of the present application includes: an inner tank 1, an exhaust component 4, an air duct 21, a fan 22 and a heater 23.

[0069] The inner liner 1 forms a clean chamber 11; the exhaust component 4 is installed on the inner liner 1, and the air inlet 41 of the exhaust component 4 is connected to the clean chamber 11, and the exhaust component 4 is configured to discharge the gas in the clean chamber 11 when it is turned on; the air duct 21 is installed on the inner liner 1, and has an air inlet 211 and an air outlet 212, and the air inlet 211 and the air outlet 212 are both connected to the clean chamber 11; the heater 23 is configured to heat the gas in the air duct 21 when it is turned on; the fan 22 is configured to drive the gas in the air duct 21 when it is turned on; wherein the air inlet 211, the air outlet 212 and the air inlet 41 are arranged on at least two different wall surfaces of the clean chamber 11.

[0070] As shown in Figure 1, the inner liner 1 includes a top wall 12, a bottom wall 16, a back plate 14, a side wall 13 and a front opening 15. The top wall 12, bottom wall 16, back plate 14 and side wall 13 of the inner liner 1 enclose a cleaning chamber 11. The top wall 12 of the inner liner 1 is the top wall 12 of the cleaning chamber 11, the side wall 13 of the inner liner 1 is the side of the cleaning chamber 11, the back plate 14 of the inner liner 1 is the back of the cleaning chamber 11, and the bottom wall 16 of the inner liner 1 is the bottom surface of the cleaning chamber 11.

[0071] The cleaning device may also include a cover plate, which is pivotally connected to the inner liner 1 and can be rotated relative to the inner liner 1 to open and close the front opening 15 of the inner liner 1 to facilitate placing or removing items from the cleaning chamber 11. The cover plate and the top wall 12, bottom wall 16, back panel 14 and side wall 13 of the inner liner 1 enclose the cleaning chamber 11.

[0072] The cleaning chamber 11 is used to place items to be cleaned. The items to be cleaned can be cleaned and dried in the cleaning chamber 11. The items to be cleaned can be tableware such as bowls, chopsticks, plates and pots.

[0073] As shown in Figure 1, there can be an item placement rack in the cleaning chamber 11. The item placement rack can include a bowl basket 5, a chopstick rack, a cup rack and other brackets. The item placement rack can fix and support tableware, and can also divide the cleaning chamber 11 into spaces, thereby increasing the space utilization rate of the cleaning chamber 11.

[0074] The cleaning chamber 11 may also include a spray arm for spraying high-pressure water. The high-pressure water can spray and flush the tableware in the cleaning chamber 11 to wash away dirt attached to the tableware, thereby rinsing the tableware. Multiple spray arms can be provided, and multiple spray arms can be installed at different positions in the cleaning chamber 11 to spray the tableware in multiple directions, angles, and levels, thereby improving the cleaning effect of the tableware.

[0075] The air duct 21 may be used to realize the circulation of air in the cleaning chamber 11 , for example, to realize internal circulation, external circulation, or a mixture of internal and external circulation.

[0076] 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 of the inner container 1 by means of clamping, threaded connection or welding.

[0077] As shown in Figure 2, the air duct 21 has an air inlet 211 and an air outlet 212, both of which are connected to 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. The hot air can be used to dry items such as tableware in the cleaning chamber 11.

[0078] In this embodiment, the air duct 21 has an air inlet 211 communicating with the cleaning chamber 11 and an air outlet 212 communicating with the cleaning chamber 11. The air inlet 211 and the air outlet 212 can be located on the same wall surface of the inner liner 1 or on different walls of the inner liner 1, depending on the specific usage scenario. The number and ventilation area of ​​the air inlet 211 and the air outlet 212 of the air duct 21 can be set according to the specific usage scenario. For example, as shown in Figures 1 and 5, the number of air outlets 212 can be set to two, and as shown in Figure 2, the number of air outlets 212 can be set to one.

[0079] In the drying working mode of the cleaning device, the dry air in the cleaning chamber 11 is circulated and heated by the heater 23 to reach a suitable temperature and humidity, so as to perform hot air drying on the tableware in the cleaning chamber 11 .

[0080] The inlet of the fan 22 is connected to the air inlet 211 of the air duct 21, and the outlet of the fan 22 is connected to the air outlet 212 of the air duct 21, so that the air in the air duct 21 is driven by the fan 22. The fan 22 drives the air 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 air in the cleaning chamber 11 is drawn into the air duct 21 by the fan 22, heated by the heater 23, and then driven by the fan 22 to be discharged from the air duct 21 into the cleaning chamber 11, forming an internal circulation.

[0081] The fan 22 is connected to the air inlet 211 of the air duct 21, so that when the fan 22 is turned on, it draws the air in the cleaning chamber 11 into the air duct 21. The fan 22 can be installed at the air inlet 211, the air outlet 212, or between the air inlet 211 and the air outlet 212 of the air duct 21. The fan 22 can be a device capable of driving air flow, such as a centrifugal air supply device, an exhaust fan, or a ventilation air supply device.

[0082] The heater 23 can heat the gas flowing through the air duct 21 by electromagnetic heating, infrared heating, or resistance heating. The heater 23 using resistance heating can be a PTC (Positive Temperature Coefficient) heating device, a resistance wire heating device, or a resistance coil heating device.

[0083] When turned on, the heater 23 heats the gas flowing through the air duct 21. The heater 23 can be installed inside the air duct 21 to perform direct contact heat exchange with the gas flowing through the air duct 21; the heater 23 can also be installed outside the air duct 21 to indirectly exchange heat with the gas flowing through the air duct 21 by heating the pipe wall of the air duct 21.

[0084] In this embodiment, the fan 22 and the heater 23 constitute the internal circulation component 2 of the cleaning equipment, which is used to circulate and heat the gas in the cleaning chamber 11 and provide the heat required for drying the dishes and the air flow speed required for convection.

[0085] The exhaust assembly 4 is a component capable of creating a normal pressure or negative pressure within the cleaning chamber 11. The exhaust assembly 4 can be a fluid machine with an exhaust function, such as an exhaust fan 22 or an air pump. When the cleaning chamber 11 is being dried with hot air, the exhaust assembly 4 is used to exhaust evaporated or volatilized water vapor within the cleaning chamber 11 along with the air, thereby reducing the relative humidity of the air within the cleaning chamber 11 and facilitating the evaporation of more residual water.

[0086] Among them, the internal circulation component 2 and the exhaust component 4 can be operated in a jointly opened or individually opened manner.

[0087] When only the internal circulation component 2 is running, the air in the cleaning chamber 11 is circulated and heated, and the heat is evenly distributed. The colder areas in the cleaning chamber 11 can evaporate and dry faster through heat transfer and convection heat exchange, which is beneficial to the drying of the entire cleaning chamber 11 and reduces drying dead corners.

[0088] When only the exhaust assembly 4 is working, the cleaning chamber 11 is drawn into a negative pressure state by the exhaust assembly 4 due to the lack of external air supply. The negative pressure environment also helps to improve the drying rate.

[0089] 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, so that the temperature and humidity in the cleaning chamber 11 are evenly distributed, further improving the effect of uniform drying of the entire chamber.

[0090] In this embodiment, as shown in Figures 1 and 2, the air inlet 211 of the air duct 21, the air outlet 212 of the air duct 21 and the air inlet 41 of the exhaust assembly 4 are arranged on at least two different wall surfaces of the cleaning chamber 11 to extend the path of hot air flowing in the cleaning chamber 11, improve the utilization efficiency of hot air thermal energy, and at the same time improve the uniformity of gas mixing in the cleaning chamber 11 and reduce drying dead corners.

[0091] Among them, the cleaning equipment has at least the following structures:

[0092] First, at least two of the air inlet 211 of the air duct 21, the air outlet 212 of the air duct 21, and the air inlet 41 of the exhaust assembly 4 are arranged on the same side of the clean chamber 11, and the other of the air inlet 211 of the air duct 21, the air outlet 212 of the air duct 21, and the air inlet 41 of the exhaust assembly 4 is arranged on the other wall of the clean chamber 11.

[0093] In this structure, the air inlet 211 and the air outlet 212 of the air duct 21 can be arranged on the same wall of the cleaning chamber 11, and the air inlet 41 of the exhaust component 4 is arranged on the adjacent wall or the opposite wall.

[0094] Alternatively, the air inlet 211 of the air duct 21 and the air inlet 41 of the exhaust assembly 4 can be arranged on the same wall of the cleaning chamber 11, and the air outlet 212 of the air duct 21 is arranged on an adjacent wall or an opposite wall of the wall.

[0095] Alternatively, the air outlet 212 of the air duct 21 and the air inlet 41 of the exhaust assembly 4 can be arranged on the same wall of the cleaning chamber 11, and the air inlet 211 of the air duct 21 is arranged on an adjacent wall or an opposite wall of the wall.

[0096] In some embodiments, as shown in Figures 2 and 4, the cleaning chamber 11 has a first side surface 111 and a second side surface 112 arranged opposite to each other, the air outlet 212 of the air duct 21 is located on the second side surface 112, and the distance from the center of the air inlet 211 of the air duct 21 to the second side surface 112 is smaller than the distance from the center of the air inlet 211 to the first side surface 111.

[0097] In this embodiment, the exhaust component 4 can be installed on the first side 111, and the exhaust component 4 and the air outlet 212 are respectively located on the first side 111 and the second side 112 which are relatively set, and the air inlet 211 is located near the second side 112 where the air outlet 212 is located, that is, the air inlet 211 is away from the exhaust component 4.

[0098] By arranging the exhaust component 4 and the air outlet 212 on opposite sides and arranging the air inlet 211 away from the exhaust component 4, when the exhaust component 4 and the fan 22 are working at the same time, the flow path of the gas heated by the heater 23 in the cleaning chamber 11 can be extended, thereby improving the utilization efficiency of the hot air thermal energy, reducing the energy consumption of the hot air drying working mode of the cleaning equipment, achieving energy saving, and at the same time improving the uniformity of the gas mixing in the cleaning chamber 11 and reducing drying dead corners.

[0099] Second, as shown in FIG. 2 , the air inlet 211 of the air duct 21 , the air outlet 212 of the air duct 21 and the air inlet 41 of the exhaust assembly 4 are respectively arranged on three different walls of the cleaning chamber 11 .

[0100] In this structure, the gas in the cleaning chamber 11 enters the air duct 21 from the air inlet 211 of the air duct 21, and the hot air heated by the heater 23 is discharged into the cleaning chamber 11 from the air outlet 212 of the air duct 21 to dry the tableware in the cleaning chamber 11. Part of the hot air is discharged from the cleaning chamber 11 from the air inlet 41 of the exhaust component 4. The flow path of the hot air is connected to the three different walls of the cleaning chamber 11, further extending the flow path of the gas heated by the heater 23 in the cleaning chamber 11, reducing the energy consumption of the hot air drying working mode of the cleaning equipment, improving the utilization efficiency of the hot air thermal energy, further realizing energy saving, and increasing the area of ​​the gas heated by the heater 23 flowing through the entire cleaning chamber 11, thereby improving the full-cavity drying and dead-corner drying effects of the cleaning chamber 11.

[0101] According to the cleaning device provided in the embodiment of the present application, by providing an internal circulation component 2 such as an air duct 21, a fan 22 and a heater 23, on the one hand, the air inlet 211 and the air outlet 212 of the air duct 21 are both connected to the cleaning chamber 11, and 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, and the dry gas in the cleaning chamber 11 is circulated and heated by the heater 23 to achieve hot air drying of the tableware in the cleaning chamber 11; on the other hand, by arranging the air inlet 211 of the air duct 21, the air outlet 212 of the air duct 21 and the air inlet 41 of the exhaust component 4 on at least two different wall surfaces of the cleaning chamber 11, the path of the hot air flowing in the cleaning chamber 11 can be extended, the utilization efficiency of the hot air thermal energy can be improved, and at the same time, the uniformity of the gas mixing in the cleaning chamber 11 can be improved, and the drying dead corners can be reduced. Compared with cleaning equipment that performs hot air drying through external circulation, the utilization rate of hot air thermal energy is improved, the energy consumption of the hot air drying working mode of the cleaning equipment is reduced, and the effect of full-cavity drying and dead-corner drying of the cleaning chamber 11 is significantly improved.

[0102] In some embodiments, as shown in FIG. 2 , the air inlet 211 of the air duct 21 , the air outlet 212 of the air duct 21 , and the air inlet 41 of the exhaust assembly 4 are respectively arranged on three walls of the cleaning chamber 11 .

[0103] Among them, the air inlet 211, the air outlet 212 and the air inlet 41 of the exhaust assembly 4 can be distributed on two opposite sides and the top of the cleaning chamber 11, or on the top wall 12, the bottom surface and a certain side surface of the cleaning chamber 11, or on two adjacent sides and the top of the cleaning chamber 11.

[0104] In this embodiment, the flow path of the hot air is connected to three different walls of the cleaning chamber 11, further extending the flow path of the gas heated by the heater 23 in the cleaning chamber 11, reducing the energy consumption of the hot air drying working mode of the cleaning equipment, and improving the utilization efficiency of the hot air thermal energy. It can also further increase the area of ​​the gas heated by the heater 23 flowing through the entire cleaning chamber 11, thereby improving the full-chamber drying and dead-corner drying effects of the cleaning chamber 11.

[0105] In some embodiments, as shown in Figures 2 and 7, the air inlet 211 of the air duct 21 is located on the top wall 12 of the cleaning chamber 11, the air outlet 212 of the air duct 21 is located at the lower part of one side of the cleaning chamber 11, and the air inlet 41 of the exhaust assembly 4 is located at the upper part of the other side of the cleaning chamber 11.

[0106] Among them, the air inlet 211 of the air duct 21, the air outlet 212 of the air duct 21 and the air inlet 41 of the exhaust component 4 are distributed on the three walls of the cleaning chamber 11. The air outlet 212 of the air duct 21 and the air inlet 41 of the exhaust component 4 can be located on opposite sides or adjacent sides.

[0107] In this embodiment, the air outlet 212 of the air duct 21 and the air inlet 41 of the exhaust component 4 are staggered up and down along the vertical direction of the cleaning chamber 11. The hot air discharged from the air outlet 212 of the air duct 21 into the cleaning chamber 11 cannot be directly discharged from the cleaning chamber 11 from the air inlet 41 of the exhaust component 4. On the one hand, the uniformity of the temperature distribution in the cleaning chamber 11 can be improved through the flow direction of the airflow, which is conducive to drying the entire chamber and reducing drying dead corners; on the other hand, it can reduce the water vapor entering the internal circulation components 2 such as the air duct 21, the fan 22 and the heater 23 through the air inlet 211, thereby protecting the internal circulation components 2; on the third hand, it can extend the flow path of the gas heated by the heater 23 in the cleaning chamber 11, thereby reducing the energy consumption of the hot air drying working mode of the cleaning equipment, improving the utilization efficiency of the hot air thermal energy, and achieving energy saving.

[0108] In some embodiments, as shown in FIG9 , the air inlet 211 of the air duct 21 is located on the top wall 12 of the cleaning chamber 11 and close to the back panel 14 of the inner tank 1. The center of the air inlet 211 is located in the rear half of the entire cleaning device to reduce the effect of the air inlet 211 on the pushing and pulling of the bowl basket 5, thereby increasing the depth of the bowl basket 5 and improving the capacity of the bowl basket 5.

[0109] In some embodiments, as shown in FIG. 4 , the air inlet 211 of the air duct 21 is disposed on the top wall 12 of the cleaning chamber 11 in an area close to the side surface and the back panel 14 .

[0110] 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 impact of the air inlet 211 on the pushing and pulling of the bowl basket 5, thereby increasing the depth and width of the bowl basket 5 and improving the storage capacity of the bowl basket 5.

[0111] In some embodiments, when the exhaust assembly 4 is working, the exhaust volume of the exhaust assembly 4 is not less than the volume of gas entering the cleaning chamber 11 from the outside.

[0112] It should be noted that in actual use, it is impossible to achieve complete sealing of the cleaning chamber 11. There is still a small amount of gas exchange between the cleaning chamber 11 and the outside world. 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 world, the cleaning chamber 11 is in a normal pressure or negative pressure environment, and the negative pressure environment is helpful to improve the drying rate.

[0113] In this embodiment, when only the exhaust assembly 4 is working, due to the lack of sufficient external air supply, the cleaning chamber 11 is drawn into a negative pressure state by the exhaust assembly 4, which helps to improve the drying rate accordingly.

[0114] 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, so that the temperature and humidity in the cleaning chamber 11 are evenly distributed, further improving the effect of uniform drying of the entire chamber.

[0115] In some embodiments, as shown in Figures 1 and 5, the air duct 21 includes an air supply branch 213, the air supply inlet 2131 of the air supply branch 213 is connected to the outside world, and the air supply outlet of the air supply branch 213 is connected to the cleaning chamber 11. When the exhaust component 4 and the fan 22 are working, the exhaust volume of the exhaust component 4 is not less than the air supply volume of the air supply branch 213.

[0116] Among them, the air duct 21 includes two branches of internal circulation and external circulation. The air inlet 2131 of the air supply branch 213 is connected to the outside world, and the air outlet of the air supply branch 213 is connected to the cleaning chamber 11. The setting of the air supply branch 213 forms an external circulation branch of the cleaning chamber 11; the branch with the air inlet 211 and the air outlet 212 connected to the cleaning chamber 11 belongs to the internal circulation branch. In Figure 6, the hollow arrow represents the external circulation, and the solid arrow represents the internal circulation.

[0117] By providing the air supply branch 213 , external circulation and / or internal circulation of the cleaning chamber 11 can be achieved, thereby realizing various working modes of the cleaning device.

[0118] When only the fan 22 is working, in order to maintain the pressure balance in the cleaning chamber 11, the fan 22 will only absorb the air in the cleaning chamber 11 as much as possible to achieve basic internal circulation. At this time, the air volume of the internal circulation is much larger than the air volume of the external circulation, thereby achieving the effect of quickly increasing the temperature and humidity in the cleaning chamber 11; when the fan 22 and the exhaust component 4 are working at the same time, the exhaust component 4 extracts and discharges the air in the cleaning chamber 11. At this time, the fan 22 will mainly introduce outside air, and a small amount of air in the cavity is sucked in for circulation. At this time, the internal and external circulation are carried out simultaneously, which can effectively improve the rapid dehumidification requirements in the dehumidification stage.

[0119] Among them, when the exhaust component 4 and the fan 22 are working, the exhaust volume of the exhaust component 4 is not less than the air supply volume of the air supply branch 213, that is, when the exhaust component 4 is turned on, the clean chamber 11 is pumped into normal pressure or negative pressure by the exhaust component 4. In other words, when the air supply branch 213 is supplying air, the clean chamber 11 is at normal pressure or negative pressure, and when the air supply branch 213 is not supplying air, the clean chamber 11 is at negative pressure.

[0120] 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, but the single internal circulation scheme also requires the exhaust component 4 to gradually discharge the evaporated water vapor. During the discharge stage, there is a lack of introduction of external gas, and the exhaust component 4 will gradually draw the cleaning chamber 11 into a negative pressure. The negative pressure causes the exhaust rate to gradually decrease, resulting in the overall dehumidification rate of the cleaning equipment not being well improved.

[0121] By setting up an air supply branch 213, the present application can maintain the air pressure balance in the cleaning chamber 11 through the air supply branch 213 when the exhaust component 4 is working, reduce the vacuum degree in the cleaning chamber 11, thereby maintaining a high exhaust rate, quickly exhausting the water vapor in the cleaning chamber 11, improving the overall dehumidification rate and drying rate of the cleaning equipment, and further reducing the energy consumption of hot air drying.

[0122] In some embodiments, as shown in Figures 11 and 12, the cleaning device also includes: a side panel 3, a heater 23 installed in the area of ​​the air duct 21 located on the side of the inner tank 1, the side panel 3 installed on the side wall 13 of the inner tank 1, and the cover is arranged outside at least part of the air duct 21.

[0123] In this embodiment, the side panel 3 is installed outside the side wall 13 of the inner container 1 , and the inner side surface of the side panel 3 is spaced apart from the air duct 21 and the inner side surface of the side panel 3 is spaced apart from the heater 23 .

[0124] Among them, the heater 23 and at least part of the air duct 21 are located between the side panel 3 and the inner tank 1. The side panel 3 can protect the heater 23 and at least part of the air duct 21, and at the same time reduce the risk of people touching high-voltage components and high-temperature heating components, thereby improving safety.

[0125] In some embodiments, as shown in FIG12 , the inner side surface of the side panel 3 is spaced from the air duct 21 by a distance c, and the distance c satisfies: c≥2 mm.

[0126] The distance c between the inner side surface of the side panel 3 and the air duct 21 may be 2 mm, 4 mm, 7 mm or a wider distance.

[0127] In other words, the side panel 3 is installed on the outside of the side wall 13 of the inner container 1 , and the inner side surface of the side panel 3 is separated from the air duct 21 and the heater 23 .

[0128] It can be understood that a heater 23 is installed in the area of ​​the air duct 21 located on the side wall 13 of the inner tank 1. In some embodiments, the air duct 21 is also equipped with components such as a thermostat. The heating tube will generate a large amount of heat, and the heating tube and the thermostat both contain high-voltage terminals, which are directly connected to high voltage.

[0129] While ensuring grounding, by installing the side panel 3 and setting the distance between the inner side surface of the side panel 3 and the air duct 21, on the one hand, the side panel 3 can be prevented from directly touching the strong electric and high-temperature heating components, thereby improving the safety of the cleaning equipment; on the other hand, the wall temperature of the outer side of the side panel 3 can be controlled within a safe range, reducing the risk of people being scalded by contact with the side wall 13. In the embedded installation of the cleaning equipment, the high temperature of the side panel 3 can be reduced to damage the inner wall of the installation cabinet.

[0130] In some embodiments, the power of the heater 23 is P, which satisfies: P≤500W.

[0131] The power P of the heater 23 may be 150W, 200W, 350W, 400W or 500W, and may be specifically limited according to usage.

[0132] In the related art, the cleaning equipment with external circulation hot air drying mode is limited in installation location, the size of the fan 22 and the power of the heater 23 are relatively small, and hot air drying can only be used as an auxiliary energy source, and high-temperature rinsing is the main energy source. Therefore, hand-washed dishes require a considerable amount of time for a single drying operation, which is inconvenient.

[0133] This application utilizes the internal circulation hot air drying mode, increases the power of the heater 23, and sets the power of the heater 23 to P. It can use hot air drying as the main energy source and convert high-temperature rinsing into an auxiliary energy source, significantly shortening the drying time of tableware and improving convenience.

[0134] In some embodiments, as shown in FIG. 1 and FIG. 2 , the air inlet 211 is located on the top wall 12 of the cleaning chamber 11 , and the fan 22 can be installed on the top wall 12 of the inner container 1 .

[0135] The fan 22 may be installed above the top wall 12 of the inner container 1 , and at least a portion of the air duct 21 is located above the top wall 12 of the inner container 1 and outside the side wall 13 .

[0136] Among them, the air inlet 211 is located above the top wall 12 of the inner liner 1, the air outlet 212 is located on the side wall 13 of the inner liner 1, and at least part of the air duct 21 is bent. The bending angle of the air duct 21 can be determined according to the angle between the top wall 12 of the inner liner 1 and the side wall 13 of the inner liner 1. For example, the bending angle can be 90° to connect the air outlet 212 and the air inlet 211 located on different surfaces.

[0137] The air duct 21 is located outside the inner container 1 and does not occupy the inner space of the cleaning chamber 11 , thereby increasing the capacity of the cleaning chamber 11 .

[0138] Among them, the fan 22 can be installed above the top wall 12 of the cleaning chamber 11, with the suction side of the fan 22 facing the cleaning chamber 11. When the fan 22 is running, the air with high temperature in the upper part of the cleaning chamber 11 can be introduced into the bottom of the cleaning chamber 11 through the air duct 21, which is beneficial to the uniformity of temperature distribution in the entire cleaning chamber 11.

[0139] In actual use, when the cleaning equipment is matched with an automatic door opening or automatic door opening and closing solution as the main means of dehumidification, the hot air in the cleaning chamber 11 will move upward and backward in the cleaning chamber 11 due to natural convection. This installation position of the air inlet 211 and the fan 22 can avoid a large amount of hot and humid air from remaining in the upper part of the cleaning chamber 11, reduce drying dead corners, and help improve the overall drying effect and rate.

[0140] In this embodiment, the fan 22 can be installed above the top wall 12 of the cleaning chamber 11. The thickness of the fan 22 is not less than 20 mm. For example, the thickness of the fan 22 can be 5 mm, 10 mm, 15 mm or 18 mm. By setting the thickness of the fan 22, it can be suitable for the dimensions between various inner tanks 1 and the top shell of the cleaning equipment, thereby increasing the circulating air volume, thereby increasing the power of the heater 23 and better drying effect.

[0141] In some embodiments, the fan 22 can also be installed below the bottom wall 16 of the inner tank 1.

[0142] It should be noted that the distance from the bottom plate of the cleaning equipment to the ground is greater than the distance from the outer shell of the top plate, that is, the installation space under the bottom plate of the cleaning equipment is greater than the installation space under the top plate, and a larger-sized fan 22 can be installed. At the same noise level, the circulating air volume can be further increased, which is beneficial to the overall drying effect and shortens the drying time.

[0143] In some embodiments, as shown in Figures 8 and 10, the fan 22 includes: an upper shell 221, an impeller 222 and a motor assembly. The motor assembly is dynamically coupled to the impeller 222. The upper shell 221 is connected to the air duct 21 to form a accommodating cavity, and the impeller 222 is installed in the accommodating cavity.

[0144] The inlet and outlet of the accommodating cavity are respectively connected to the air inlet 211 and the air outlet 212 .

[0145] The air duct 21 includes a bottom shell, and a fan 22 installation position matching the size of the upper shell 221 is provided in the air duct 21. The upper shell 221 is connected to the bottom shell of the air duct 21 to form a accommodating cavity. The fan 22 can only retain the upper shell 221, the impeller 222 and the motor assembly. The bottom shell of the air duct 21 serves as the lower shell of the fan 22. Through the structure of assembling the fan 22 and the air duct 21, the installation space of the fan 22 can be increased and the power of the fan 22 that can be installed can be improved.

[0146] In this embodiment, the fan 22 is installed above the top wall 12 of the inner tank 1. The fan 22 can only retain the upper shell 221, the impeller 222 and the motor assembly, omitting the original lower shell of the fan 22, reducing the overall size of the fan 22, and allowing a larger fan 22 to be installed in the same space. The lower shell of the fan 22 is replaced by the air duct 21, and the impeller 222 is directly installed in the air duct 21, thereby increasing the air inlet area of ​​the air inlet 211 and increasing the air intake volume.

[0147] In some embodiments, as shown in FIG3 , a sealing device 25 is provided between the fan 22 and the air duct 21 . The sealing device 25 may be a sealing ring, a tape, or a filling glue, etc., to seal the gap between the inner tank 1 of the cleaning equipment, the fan 22 and the air duct 21 .

[0148] At the same time, the entire impeller 222 and the motor assembly are wrapped between the air duct 21 and the upper shell 221 of the fan 22, and a seal is adopted in the middle. During the operation of the entire cleaning equipment, the inner tank 1 of the cleaning equipment, the fan 22 and the air duct 21 belong to a closed space, which can reduce the amount of water vapor leaking through the gap between the fan 22 and the air duct 21 at each stage, thereby reducing hidden dangers.

[0149] In some embodiments, as shown in Figure 3, the air inlet 211 and the air outlet 212 of the air duct 21 are both provided with a sealing device 25 and a nut. The nut is tightened and compressed in the form of a snap-on seal to compress the sealing device 25. The sealing device 25 is located between the air duct 21 and the inner tank 1 to reduce the water in the cleaning chamber 11 from leaking from the gap between the air duct 21 and the inner tank 1, thereby reducing the risk of water leakage and improving the reliability of the cleaning equipment.

[0150] In some embodiments, as shown in FIG. 3 , FIG. 7 and FIG. 8 , the cleaning device further includes a water retaining cover 24 , which is installed at the air inlet 211 .

[0151] The water retaining cover 24 has ventilation and water retaining functions. The water retaining cover 24 can be set between the fan 22 and the cleaning chamber 11, and the water retaining cover 24 is located in the cleaning chamber 11. When the fan 22 is turned on, the fan 22 can pass through the water retaining cover 24 to draw the gas in the cleaning chamber 11 into the fan 22 installation position. At the same time, the water retaining cover 24 can reduce the direct impact and splashing of water on the fan 22 and the heater 23 in the air duct 21, playing a protective and protective role.

[0152] The water retaining cover 24 can be connected to the air inlet 211 by a threaded connection, a plug-in connection, a pivot connection, a snap connection or the like.

[0153] In some embodiments, the air outlet 212 is provided with a grille 2156 .

[0154] Among them, the grille 2156 is used to guide the airflow. The grille 2156 can guide the airflow of the air outlet 212 into different directions. The guide 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.

[0155] For example, if the air inlet 211 of the air duct 21 is set on the top wall 12 of the cleaning chamber 11, the grille 2156 can appropriately guide the hot air in the downward direction 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, and improving the full-chamber drying and dead-corner drying effects of the cleaning chamber 11.

[0156] For example, if the exhaust component 4 is located in the upper left part of the cleaning chamber 11, the grille 2156 can appropriately guide the hot air in the direction of the rear and lower 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-corner drying effects of the cleaning chamber 11, and reducing the amount of hot air discharged by the exhaust component 4 without being utilized, thereby increasing the utilization efficiency of the hot air thermal energy.

[0157] The grille 2156 can also reduce the direct impact of water flow on the air duct 21 and protect the air duct 21.

[0158] In some embodiments, the cleaning device has at least the following working modes:

[0159] First, the cleaning equipment has an internal circulation drying working mode.

[0160] In the internal circulation drying mode, the fan 22 and heater 23 operate, and the exhaust assembly 4 is deactivated. Air within the cleaning chamber 11 is drawn into the air duct 21 through the air inlet 211 of the air duct 21 by the fan 22. The hot air, heated by the heater 23, enters the cleaning chamber 11 through the air outlet 212 of the air duct 21. The air within the cleaning chamber 11 is circulated and heated, and the heat is evenly distributed. Cooler areas within the cleaning chamber 11 can evaporate and dry faster through heat transfer and convection, facilitating complete drying of the cleaning chamber 11 and reducing drying dead corners.

[0161] When the temperature and humidity in the cleaning chamber 11 are too low, the fan 22 and the heater 23 are turned on to achieve forced convection and circulating heating in the cleaning chamber 11 , thereby accelerating the evaporation of residual water in the cleaning chamber 22 .

[0162] Second, the cleaning equipment has a dehumidification negative pressure working mode;

[0163] In the dehumidification negative pressure working mode, the fan 22 and the heater 23 are stopped, and the exhaust assembly 4 is working. Due to the lack of external air supply, the cleaning chamber 11 is drawn into a negative pressure state by the exhaust assembly 4, which also helps to improve the drying rate.

[0164] Third, the cleaning equipment has a hybrid working mode;

[0165] In the mixed working mode, the fan 22, the heater 23 and the exhaust assembly 4 are all working. The fan 22 can circulate the air in the cleaning chamber 11, so that the temperature and humidity in the cleaning chamber 11 are evenly distributed, further improving the effect of uniform drying of the entire chamber.

[0166] Fourth, the cleaning equipment has a mixed dehumidification working mode;

[0167] In the mixed dehumidification working mode, the fan 22 and the exhaust assembly 4 are both working, and the heater 23 is stopped, so that the air in the cleaning chamber 11 is mixed and dehumidified at the same time, further improving the effect of uniform dehumidification of the entire chamber.

[0168] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0169] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0170] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0171] In the description of this application, “plurality” means two or more.

[0172] In the description of the present application, a first feature being “on” or “under” a second feature may include the first and second features being in direct contact with each other, or the first and second features being in contact with each other not directly but via another feature therebetween.

[0173] In the description of this application, a first feature “on”, “above” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0174] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0175] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A cleaning device, characterized in that: include: The inner tank forms a cleaning chamber; an exhaust assembly installed in the inner tank, an air inlet of the exhaust assembly being in communication with the cleaning chamber, and the exhaust assembly being configured to discharge the gas in the cleaning chamber when opened; an air duct, mounted on the inner tank and having an air inlet and an air outlet, wherein the air inlet and the air outlet are both connected to the cleaning chamber; a heater, configured to heat the gas in the air duct when turned on; A fan is configured to drive the gas in the air duct when turned on; wherein, The air inlet, the air outlet, and the air intake are arranged on at least two different wall surfaces of the cleaning chamber.

2. The cleaning device according to claim 1, characterized in that The air inlet, the air outlet and the air inlet of the exhaust assembly are respectively arranged on three walls of the cleaning chamber.

3. The cleaning device according to claim 1 or 2, characterized in that The air inlet is located on the top wall of the cleaning chamber, the air outlet is located at the lower part of one side of the cleaning chamber, and the air inlet is located at the upper part of the other side of the cleaning chamber.

4. The cleaning device according to any one of claims 1 to 3, characterized in that The cleaning device has an internal circulation drying working mode, in which the fan and the heater are in operation and the exhaust component is stopped; And / or, the cleaning device has a dehumidification negative pressure working mode, in which the fan and the heater are stopped and the exhaust component is working; And / or, the cleaning device has a mixed working mode; in the mixed working mode, the fan, the heater and the exhaust assembly are all working; And / or, the cleaning device has a mixed dehumidification working mode; in the mixed dehumidification working mode, the fan and the exhaust component are both working, and the heater is stopped.

5. The cleaning device according to any one of claims 1 to 4, characterized in that When the exhaust assembly is in operation, the exhaust volume of the exhaust assembly is not less than the volume of gas entering the cleaning chamber from the outside.

6. The cleaning device according to any one of claims 1 to 5, characterized in that The air duct includes an air supply branch, the air supply inlet of the air supply branch is connected to the outside world, and the air supply outlet of the air supply branch is connected to the cleaning chamber. When the exhaust component and the fan are working, the exhaust volume of the exhaust component is not less than the air supply volume of the air supply branch.

7. The cleaning device according to any one of claims 1 to 6, characterized in that Also includes: The heater is installed in the area of the air duct located on the side of the inner tank, and the side plate is installed on the side wall of the inner tank, and is covered outside at least part of the air duct.

8. The cleaning device according to claim 7, characterized in that The inner side surface of the side plate is spaced from the air duct with a spacing of c, satisfying c≥2mm.

9. The cleaning device according to any one of claims 1 to 7, characterized in that The power of the heater is P, which satisfies: P≤500W.

10. The cleaning device according to any one of claims 1 to 8, characterized in that The fan includes an upper shell, an impeller and a motor assembly. The motor assembly is dynamically coupled to the impeller. The upper shell is connected to the air duct to form an accommodating cavity. The impeller is installed in the accommodating cavity.

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