CN221730466U - Cleaning apparatus - Google Patents

Abstract

The application discloses cleaning equipment, and belongs to the field of cleaning equipment. The cleaning device includes: the air conditioner comprises an inner container, an air exhaust assembly, an air duct, a fan and a heater; the inner container forms a cleaning chamber; the exhaust assembly is arranged on the inner container and is configured to exhaust the gas in the cleaning cavity when the exhaust assembly is opened; the air duct is arranged in the inner container and comprises a main air duct, a first branch and a second branch, an air inlet is formed at the first end of the main air duct, the first ends of the first branch and the second branch are connected with the second end of the main air duct, a first air outlet and a second air outlet are respectively formed at the second ends of the first branch and the second branch, and the air inlet, the first air outlet and the second air outlet are communicated with the cleaning chamber; the fan is configured to drive the gas in the air duct when the fan is started; the heater is configured to heat the gas flowing through the air duct when turned on. The application improves the utilization rate of hot air heat energy, reduces the energy consumption of the hot air drying working mode of the cleaning equipment, and reduces the drying dead angle.

Description

Cleaning Equipment

Technical Field

The present application belongs to the technical field of household appliances, and in particular, relates to a cleaning device.

Background Art

The drying methods of dishwashers and other cleaning equipment include: condensation drying, hot air drying, adsorption drying and door-opening quick drying. Among them, condensation drying has problems such as poor drying effect and long drying time, adsorption drying has problems such as high cost and odor after long-term storage, and door-opening quick drying has problems such as insects easily entering and failure to automatically close the door in time in humid areas. Therefore, considering the comprehensive cost and drying effect, hot air drying has become the method chosen by most manufacturers.

At present, most cleaning equipment such as dishwashers rely on an external circulation system for hot air drying. The working process is: outside air is sucked in and heated by 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, outside air is sucked into the cleaning chamber to form a positive pressure in the cleaning chamber. In order to maintain the normal pressure of the cleaning chamber, the exhaust component of the cleaning equipment is usually turned on to reduce the water vapor leakage problem caused by the positive pressure of the cleaning chamber.

However, opening the exhaust assembly 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.

Utility Model Content

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 thermal energy, reduces the energy consumption of the hot air drying working mode of the cleaning device, and reduces the drying dead corners.

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

An inner tank, wherein the inner tank forms a cleaning chamber;

An exhaust assembly, which is mounted on the inner tank and is configured to exhaust the gas in the cleaning chamber when it is turned on;

An air duct, the air duct is installed on the inner tank and includes a main air duct, a first branch and a second branch, the first end of the main air duct is formed with an air inlet, the first ends of the first branch and the second branch are connected to the second end of the main air duct, the second ends of the first branch and the second branch are respectively formed with a first air outlet and a second air outlet, the air inlet, the first air outlet and the second air outlet are all connected to the cleaning chamber;

a blower, the blower being configured to drive the gas in the air duct when turned on;

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

According to the cleaning equipment provided by the embodiment of the present application, on the one hand, by setting internal circulation components such as an air duct, a fan and a heater, 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 fan, 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. Compared with cleaning equipment that performs hot air drying through external circulation, the internal circulation drying working mode improves the utilization rate of hot air thermal energy, reduces the energy consumption of the hot air drying working mode of the cleaning equipment, and achieves energy saving. On the other hand, by setting the air duct as a "Y"-shaped air duct consisting of a main air duct, a first branch and a second branch, internal circulation components such as a fan and a heater can be located in the main air duct, so that one fan can be used to drive the gas flow of the first branch and the second branch, and one heater can be used to heat the gas flowing through the first branch and the second branch, thereby reducing costs. At the same time, multiple air outlets can improve the uniform flow of airflow in the cleaning chamber, improve the uniformity of temperature and humidity, and reduce drying dead corners.

According to an embodiment of the present application, the airflow of the main air duct flows obliquely toward the front, the first branch is located in front of the second branch, and the length of the first branch on the front side is greater than that of the second branch.

According to one embodiment of the present application, the first branch extends obliquely forward and downward from the first end to the second end, and the second branch extends obliquely rearward and downward from the first end to the second end, and the inclination angle between the first branch and the main air duct is smaller than the inclination angle between the second branch and the main air duct.

According to an embodiment of the present application, the length L1 of the first branch and the length L2 of the second branch satisfy: L1 ≥ 1.5L2.

According to one embodiment of the present application, the distance from the center of the first air outlet to the front opening of the inner tank is d3, the distance from the center of the second air outlet to the back plate of the inner tank is d4, and the depth of the cleaning chamber in the front-to-back direction is D0, satisfying: 0.05≤d3/D0≤0.3, 0.05≤d4/D0≤0.3.

According to one embodiment of the present application, the air inlet is located on the top wall of the inner container;

The centers of the first air outlet and the second air outlet are located in the middle of the inner liner side wall; or, the centers of the first air outlet and the second air outlet are located in the lower part of the inner liner side wall.

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.

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

According to one embodiment of the present application, it also 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 is covered outside at least part of the air duct, and the inner side surface of the side panel is separated from the air duct and the heater.

According to one embodiment of the present application, the power of the heater is P, satisfying: P≤500W.

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 a accommodating cavity, and the impeller is installed in the accommodating cavity.

According to one embodiment of the present application, the cleaning device has an internal circulation drying working mode, in which the fan and the heater are working, 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 assembly are both working, and the heater is stopped.

Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application.

BRIEF DESCRIPTION OF THE DRAWINGS

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:

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

FIG2 is one of the structural schematic diagrams of the internal circulation component provided in an embodiment of the present application;

FIG3 is a second schematic diagram of the structure of the cleaning device provided in an embodiment of the present application;

FIG4 is a second schematic diagram of the structure of the internal circulation component provided in an embodiment of the present application;

FIG5 is a third schematic diagram of the structure of the cleaning device provided in an embodiment of the present application;

FIG6 is a fourth schematic diagram of the structure of the cleaning device provided in an embodiment of the present application;

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

FIG8 is a sixth structural schematic diagram of a cleaning device provided in an embodiment of the present application;

FIG9 is a seventh structural schematic diagram of a cleaning device provided in an embodiment of the present application;

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

FIG11 is an eighth structural schematic diagram of a cleaning device provided in an embodiment of the present application;

FIG12 is a partial enlarged view of point B in FIG11;

FIG13 is an eighth structural schematic diagram of a cleaning device provided in an embodiment of the present application;

FIG14 is a ninth structural schematic diagram of a cleaning device provided in an embodiment of the present application;

Reference numerals:

Inner container 1, cleaning chamber 11, first side surface 111, second side surface 112; top wall 12, side wall 13, back plate 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;

First branch 2151, second branch 2152, grille 2156, main air duct 216;

Fan 22, upper shell 221, impeller 222; heater 23; water retaining cover 24; sealing device 25;

Side panel 3, exhaust assembly 4, air inlet 41, bowl basket 5.

DETAILED DESCRIPTION

The embodiments of the present application are described in detail below, and 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 cannot be understood as limiting the present application.

The cleaning device according to an embodiment of the present application is described below with reference to FIGS. 1 to 14 . The cleaning device of the present application can clean and dry a variety of items such as tableware or clothing.

The cleaning device may be a dishwasher, a clothes dryer, a shoe washer, or other device with hot air drying function. In the embodiment 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 begins. Drying the items in the cleaning chamber can reduce the growth of bacteria. For the sake of convenience, the present application takes a dishwasher as an example for elaboration.

As shown in FIG. 1 and FIG. 2 , the cleaning device of the embodiment of the present application includes: an inner tank 1 , an exhaust assembly 4 , an air duct 21 , a fan 22 and a heater 23 .

The inner tank 1 forms a clean chamber 11; the exhaust assembly 4 is installed on the inner tank 1 and 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 tank 1, and includes a main air duct 216, a first branch 2151 and a second branch 2152, the first end of the main air duct 216 forms an air inlet 211, the first ends of the first branch 2151 and the second branch 2152 are both connected to the second end of the main air duct 216, the second ends of the first branch 2151 and the second branch 2152 are respectively formed with a first air outlet and a second air outlet, the air inlet 211, the first air outlet and the second air outlet are all connected to the clean chamber 11; the fan 22 is configured to drive the gas in the air duct 21 when it is turned on; the heater 23 is configured to heat the gas flowing through the air duct 21 when it is turned on.

Among them, 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, the bottom wall 16, the back plate 14 and the 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.

The cleaning device may also include a cover plate, which is pivotally connected to the inner liner 1 and can rotate relative to the inner liner 1 to open and close the front end 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.

The cleaning chamber 11 is used for placing 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.

As shown in FIG. 1 , the cleaning chamber 11 may be provided with an item rack, which may include a bowl basket 5 , a chopstick rack, a cup rack and other supports. The item rack may fix and support tableware, and may also divide the cleaning chamber 11 into spaces, thereby increasing the space utilization of the cleaning chamber 11 .

The cleaning chamber 11 may also be provided with a spray arm, which is used to spray high-pressure water flow, and the high-pressure water flow can spray and flush the tableware in the cleaning chamber 11 to wash away the dirt attached to the tableware, thereby achieving the washing of the tableware. There may be multiple spray arms, and the multiple spray arms may be installed at different positions of the cleaning chamber 11 to spray the tableware in multiple directions, angles, and levels, thereby improving the cleaning effect of the tableware.

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.

The air duct 21 can be installed on the outside or inside of the inner container 1, and the air duct 21 can be connected to the wall surface of the inner container 1 by means of clamping, threading or welding.

The air duct 21 has an air inlet 211 and an air outlet 212 both connected to the cleaning chamber 11, and the air outlet 212 includes a first air outlet and a second air outlet. 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 first air outlet and the second air outlet of the air duct 21. The hot air can be used to dry items such as tableware in the cleaning chamber 11.

In this embodiment, the air inlet 211, the first air outlet, and the second air outlet of the air duct 21 can be located on the same wall surface of the inner liner 1, or on different wall surfaces of the inner liner 1, which can be set according to the usage scenario. The ventilation area of the air inlet 211, the first air outlet, and the second air outlet of the air duct 21 can be set according to the specific usage scenario.

Among them, the main air duct 216, the first branch 2151 and the second branch 2152 form a "Y"-shaped air duct 21, the upper end of the first branch 2151 and the first end of the second branch 2152 are both connected to the main air duct 216, and the lengths and angles of the first branch 2151 and the second branch 2152 can be the same or different, and are set specifically according to the actual usage scenario.

In this embodiment, the internal circulation components 2 such as the fan 22 and the heater 23 can be located in the main air duct 216, so that one fan 22 can be used to drive the gas flow of the first branch 2151 and the second branch 2152, and one heater 23 can be used to heat the gas flowing through the first branch 2151 and the second branch 2152, thereby reducing costs. At the same time, multiple air outlets 212 can improve the uniform flow of airflow in the cleaning chamber 11, improve the uniformity of temperature and humidity, and reduce drying dead corners.

The inlet of the fan 22 is communicated with the air inlet 211 of the air duct 21, and the outlet of the fan 22 is communicated with the air outlet 212 of the air duct 21, so that the gas in the air duct 21 is driven by the fan 22. The fan 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 fan 22, and after being heated by the heater 23, it is driven by the fan 22 to be discharged from the air duct 21 into the cleaning chamber 11, forming an internal circulation.

The fan 22 is connected to the air inlet 211 of the air duct 21, so that the fan 22 can draw the gas in the cleaning chamber 11 into the air duct 21 when it is turned on. 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 that can drive the flow of gas, such as a centrifugal air supply device, an exhaust fan, or a ventilation air supply device.

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.

When turned on, the heater 23 heats the gas flowing through the air duct 21. The heater 23 can be installed in 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.

In this embodiment, the fan 22 and the heater 23 constitute an internal circulation component 2 of the cleaning device, 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.

The exhaust component 4 is a related component capable of creating normal pressure or negative pressure in the cleaning chamber 11. The exhaust component 4 can be a fluid machine with exhaust function such as an exhaust fan 22 or an air pump. When the cleaning chamber 11 is hot-air dried, the exhaust component 4 is used to discharge the water vapor that has evaporated or volatilized in the cleaning chamber 11 together with the gas to reduce the relative humidity of the air in the cleaning chamber 11, which is conducive to the evaporation of more residual water.

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 connected to the cleaning chamber 11. The air inlet 41 of the exhaust component 4 is used to discharge the water vapor that has evaporated or volatilized in the cleaning chamber 11 out of the cleaning chamber 11 together with the gas.

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

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

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.

When only the exhaust assembly 4 is working, due to the lack of external air supply, the cleaning chamber 11 is evacuated into a negative pressure state by the exhaust assembly 4, and the negative pressure environment is also helpful 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, 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.

According to the cleaning equipment provided by the embodiment of the present application, on the one hand, by providing the internal circulation components 2 such as the air duct 21, the fan 22 and the heater 23, the air inlet 211 and the air outlet 212 of the air duct 21 are both connected 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, and the dry gas in the cleaning chamber 11 is circulated and heated by the heater 23 to achieve hot air drying of the dishes in the cleaning chamber 11. Compared with the cleaning equipment that performs hot air drying through external circulation, the internal circulation drying working mode improves the utilization rate of hot air thermal energy, reduces the energy consumption of the hot air drying working mode of the cleaning equipment, and achieves energy saving. On the other hand, by setting the air duct 21 to a "Y"-shaped air duct 21 of the main air duct 216, the first branch 2151 and the second branch 2152, the internal circulation components 2 such as the fan 22 and the heater 23 can be located in the main air duct 216, so that one fan 22 can be used to drive the gas flow of the first branch 2151 and the second branch 2152, and one heater 23 can be used to heat the gas flowing through the first branch 2151 and the second branch 2152, thereby reducing costs. At the same time, multiple air outlets 212 can improve the uniform flow of airflow in the cleaning chamber 11, improve the uniformity of temperature and humidity, and reduce drying dead corners.

In some embodiments, as shown in FIG. 1 and FIG. 3 , the airflow of the main air duct 216 flows obliquely toward the front, the first branch 2151 is located in front of the second branch 2152 , and the length of the first branch 2151 on the front side is greater than that of the second branch 2152 .

Among them, the air duct 21 includes an air inlet 211 and two air outlets 212 connected to the cleaning chamber 11, the first air outlet and the second air outlet are spaced apart along the front and rear direction of the cleaning chamber 11, and the length of the first branch 2151 is greater than the length of the second branch 2152. The gas in the cleaning chamber 11 is sucked into the air inlet 211 of the air duct 21 by the fan 22 from the top wall 12 of the cleaning chamber 11, and then driven by the fan 22 along the air duct 21 to turn to the lower half of the air duct 21 located on the side of the cleaning chamber 11, and after being heated by the heater 23, it is discharged from the front and rear air outlets 212 of the air duct 21 in the lower half of the air duct 21.

In this embodiment, since the impeller 222 of the fan 22 rotates to draw air, the air flow entering the main air duct 216 flows obliquely toward the front side. The length of the first branch 2151 is set to be greater than the length of the second branch 2152. The air volumes of the front and rear air outlets 212 of the first branch 2151 and the second branch 2152 can be made basically equal, thereby further improving the uniform distribution of the circulating heating temperature in the cleaning chamber 11.

In some embodiments, as shown in FIG. 1 , the air inlet 211 is located on the top wall 12 of the inner liner 1 , and the centers of the first air outlet and the second air outlet are located on the side wall 13 of the inner liner 1 .

It can be understood that, in the cleaning chamber 11, the air flow circulates upward from a position near the bottom of the cleaning chamber 11, and the air inlet 211 of the air duct 21 is set on the top wall 12 of the inner tank 1. On the one hand, the uniformity of the temperature distribution in the cleaning chamber 11 can be improved by the flow direction of the air flow; on the other hand, due to the effect of gravity, the water vapor can be reduced from entering the air duct 21, the fan 22 and the heater 23 through the air inlet 211, thereby protecting them.

In some embodiments, the air inlet 211 is located on the top wall 12 of the inner tank 1 and close to the back panel 14, that is, the center of the air inlet 211 is located in the rear half of the entire cleaning device, which can reduce the impact of the air inlet 211 on the push and pull of the bowl basket 5, thereby increasing the depth of the bowl basket 5 and improving the capacity of the bowl basket 5.

In some embodiments, as shown in FIG. 9 , 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 plate 14 .

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, thereby increasing the depth and width of the bowl basket 5 and improving the capacity of the bowl basket 5.

The positions of the centers of the first air outlet and the second air outlet on the side wall 13 of the inner container 1 are at least the following two:

First, as shown in FIG. 6 , the first air outlet and the second air outlet are located in the middle of the side wall 13 of the inner container 1 .

In the present structure, by arranging the first air outlet and the second air outlet in the middle of the side wall 13 of the inner tank 1, the uniformity of the temperature distribution in the cleaning chamber 11 can be improved by the flow direction of the airflow; also due to the effect of gravity, the water vapor can be reduced from entering the air duct 21, the fan 22 and the heater 23 through the air inlet 211, thereby protecting them.

Secondly, as shown in FIG. 5 , the centers of the first air outlet and the second air outlet are located at the lower part of the side wall 13 of the inner container 1 .

In this structure, by arranging the first air outlet and the second air outlet at the lower part of the side wall 13 of the inner tank 1, the uniformity of the temperature distribution in the cleaning chamber 11 can be further improved by the flow direction of the airflow; due to the effect of gravity, the water vapor can be reduced from entering the air duct 21, the fan 22, the heater 23 and other internal circulation components 2 through the air inlet 211, thereby protecting the internal circulation components 2; at the same time, the shielding effect of the bowl basket 5 and other brackets on the first air outlet and the second air outlet can be reduced to a certain extent, thereby increasing the air outlet area.

In some embodiments, as shown in Figure 3, the first branch 2151 extends obliquely forward and downward from the first end to the second end, and the second branch 2152 extends obliquely rearward and downward from the first end to the second end, and the inclination angle β1 between the first branch 2151 and the main air duct 216 is smaller than the inclination angle β2 between the second branch 2152 and the main air duct 216.

By setting the first branch 2151 and the second branch 2152 to be inclined in opposite directions, the first air outlet and the second air outlet can be spaced apart and distributed along the depth direction of the inner tank 1, thereby improving the uniformity of temperature and humidity distribution in the cleaning chamber 11.

In this embodiment, since the impeller 222 of the fan 22 rotates to draw air, the air flow entering the main air duct 216 flows obliquely toward the front side, and the inclination angle of the first branch 2151 and the main air duct 216 is set to be smaller than the inclination angle of the second branch 2152 and the main air duct 216. This can reduce the turning angle of the air flow from the main air duct 216 to the first branch 2151, and increase the turning angle of the air flow from the main air duct 216 to the second branch 2152, so that the air output from the first air outlet and the second air outlet is basically the same, thereby further improving the uniform distribution of the circulating heating temperature in the cleaning chamber 11.

In some embodiments, as shown in FIG. 3 , the length L1 of the first branch 2151 and the length L2 of the second branch 2152 satisfy: L1 ≥ 1.5L2.

By setting the range of the length L1 of the first branch 2151 and the length L2 of the second branch 2152 , the air volumes of the first air outlet and the second air outlet can be made substantially the same, thereby further improving the uniform distribution of the circulating heating temperature in the cleaning chamber 11 .

In some embodiments, as shown in Figure 3, the distance from the center of the first air outlet to the front opening 15 of the inner tank 1 is d3, the distance from the center of the second air outlet to the back plate 14 of the inner tank 1 is d4, and the depth of the cleaning chamber 11 in the front-to-back direction is D0, satisfying: 0.05≤d3/D0≤0.3, 0.05≤d4/D0≤0.3.

Among them, the center of the first air outlet is located near the front end opening 15 of the inner liner 1, and d3/D0 can be 0.05, 0.1, 0.2 or 0.3; the center of the second air outlet is located near the back panel 14 of the inner liner 1, and d4/D0 can be 0.05, 0.1, 0.2 or 0.3.

By setting the positions of the center of the first air outlet and the center of the second air outlet, the air outlet 212 of the air duct 21 can be set in the front half and the rear half of the cleaning chamber 11 to balance the humidity and temperature of the front half and the rear half of the cleaning chamber 11, thereby further improving the uniform distribution of the circulating heating temperature in the cleaning chamber 11.

In some embodiments, as shown in FIG. 8 , the cleaning chamber 11 has a first side surface 111 and a second side surface 112 that are arranged opposite to each other, the center of the first air outlet of the air duct 21 and the center of the second air outlet are 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.

In this embodiment, as shown in Figures 5 and 7, the exhaust component 4 can be installed on the first side 111, the center of the first air outlet of the air duct 21 and the center of the second air outlet are located on the second side 112, and the air inlet 211 of the air duct 21 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.

By arranging the exhaust component 4 and the first air outlet and the second air outlet 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 gas mixing in the cleaning chamber 11 and reducing drying dead corners.

In some embodiments, the fan 22 is installed above the top wall 12 or below the top wall 12 of the inner tank 1 , and at least a portion of the air duct 21 is located above the top wall 12 of the inner tank 1 and outside the side wall 13 .

Among them, as shown in Figure 1, the air inlet 211 of the air duct 21 is located above the top wall 12 of the inner liner 1, the first air outlet and the second air outlet are located on the side wall 13 of the inner liner 1, and the main air duct 216 is at least partially bent. The bending angle of the main air duct 216 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, the first air outlet and the second air outlet located on different surfaces.

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 .

As shown in Figures 9 and 11, 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 lower part 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.

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 above the cleaning chamber 11, reduce drying dead corners, and help improve the overall drying effect and rate.

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 the top wall 12 of various inner tanks 1 and the outer casing of the cleaning equipment, thereby increasing the circulating air volume, thereby increasing the power of the heater 23 and achieving a better drying effect.

In some embodiments, the fan 22 may also be installed below the bottom wall 16 of the inner tank 1 .

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 top plate to the outer shell, that is, the installation space under the bottom plate of the cleaning equipment is greater than the installation space of the top plate, and a larger size 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.

In some embodiments, as shown in Figures 10 and 12, 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.

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 increased.

In this embodiment, the fan 22 is installed above the top wall 12 installed on the inner tank 1. 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, thereby reducing the overall size of the fan 22. A larger fan 22 can be installed in the same space, and 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.

In some embodiments, as shown in Figures 2, 10 and 12, a sealing device 25 is provided between the fan 22 and the air duct 21. The sealing device 25 can 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.

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 and reduce hidden dangers.

In some embodiments, as shown in FIG. 2 , 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 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 leakage of water in the cleaning chamber 11 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.

In some embodiments, as shown in Figures 13 and 14, 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 a cover arranged outside at least part of the air duct 21.

In this embodiment, the side panel 3 is installed outside the side wall 13 of the inner tank 1 , 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 .

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.

In some embodiments, as shown in FIG. 14 , 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.

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

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

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 installed 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.

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 on the outer side of the side panel 3 can be controlled within a safe range, reducing the risk of people being scalded by contacting 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.

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

The power P of the heater 23 may be 150W, 200W, 350W, 400W or 500W, which may be specifically limited according to usage conditions.

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 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.

The present 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. The hot air drying can be used as the main energy source, and the high-temperature rinsing can be converted into an auxiliary energy source, which can significantly shorten the drying time of the tableware and improve convenience.

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

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.

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

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.

In some embodiments, as shown in Figures 1 and 2, 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, 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.

The air duct 21 includes two branches, an inner circulation and an outer circulation. The air inlet 2131 of the air supply branch 213 is connected to the outside, 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 outer 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 inner circulation branch. As shown in FIG4, the hollow arrows represent the outer circulation, and the solid arrows represent the inner circulation.

By providing the air supply branch 213, external circulation and/or internal circulation of the cleaning chamber 11 can be achieved, so as to realize various working modes of the cleaning device.

When only the fan 22 is working, in order to maintain the pressure balance in the clean chamber 11, the fan 22 will absorb only the air in the clean 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 clean 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 clean 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, internal and external circulation are carried out simultaneously, which can effectively improve the rapid dehumidification requirements in the dehumidification stage.

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 evacuated to 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.

In the related art, the single internal circulation scheme helps to circulate and heat the gas to be dried in the cleaning chamber 11 to 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.

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.

In some embodiments, as shown in FIG. 2 and FIG. 12 , the cleaning device further includes a water retaining cover 24 , and the water retaining cover 24 is installed at the air inlet 211 .

The water retaining cover 24 has ventilation and water retaining functions, and the water retaining cover 24 can be arranged 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 installation position of the fan 22, and at the same time, the water retaining cover 24 can reduce the direct impact and splashing of water flow on the fan 22 and the heater 23 in the air duct 21, and play a protective role.

The water retaining cover 24 can be connected to the air inlet 211 by means of threaded connection, plug-in connection, pivot connection or snap connection.

In some embodiments, as shown in FIG. 2 , the air outlet 212 is provided with a grille 2156 .

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.

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 effects of full-chamber drying and dead-corner drying of the cleaning chamber 11.

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 lower rear 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, improving the effects of full-chamber drying and dead-corner drying 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.

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

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

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

In the internal circulation drying working mode, the fan 22 and the heater 23 are working, and the exhaust assembly 4 is stopped. 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 evenly distributed. The colder area in the cleaning chamber 11 can evaporate and dry faster through heat transfer and convection heat exchange, which is conducive to the drying of the entire cavity in the cleaning chamber 11 and reduces the drying dead corners.

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 cyclic heating in the cleaning chamber 11 , thereby accelerating the evaporation of residual water in the cleaning chamber 22 .

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

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 evacuated into a negative pressure state by the exhaust assembly 4, which also helps to improve the drying rate.

Third, the cleaning equipment has a mixed working mode;

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.

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

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.

The terms "first", "second", etc. in the specification 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 interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and/or" in the specification and claims represents at least one of the connected objects, and the character "/" generally indicates that the objects associated with each other are in an "or" relationship.

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 referred device or element 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.

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

In the description of the present application, “plurality” means two or more.

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

In the description of the present application, “above”, “over” and “above” a first feature to 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.

In the description of this specification, the description with reference to the terms "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 schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

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 (11)

1. A cleaning device, comprising: The liner forms a cleaning chamber; an exhaust assembly, mounted on the inner tank, and configured to exhaust the gas in the cleaning chamber when opened; an air duct installed in the inner tank and comprising a main air duct, a first branch and a second branch, wherein an air inlet is formed at a first end of the main air duct, the first ends of the first branch and the second branch are connected to the second end of the main air duct, a first air outlet and a second air outlet are formed at the second ends of the first branch and the second branch, respectively, and the air inlet, the first air outlet and the second air outlet are all connected to the cleaning chamber; a blower configured to drive the gas in the air duct when turned on; The heater is configured to heat the gas flowing through the air duct when turned on. 2. The cleaning device according to claim 1 is characterized in that the airflow in the main air duct flows obliquely toward the front side, the first branch is located in front of the second branch, and the length of the first branch on the front side is greater than that of the second branch. 3. The cleaning equipment according to claim 2 is characterized in that the first branch extends obliquely forward and downward from the first end to the second end, the second branch extends obliquely rearward and downward from the first end to the second end, and the inclination angle between the first branch and the main air duct is smaller than the inclination angle between the second branch and the main air duct. 4 . The cleaning device according to claim 1 , wherein the length L1 of the first branch and the length L2 of the second branch satisfy: L1 ≥ 1.5L2. 5. The cleaning equipment according to claim 1 is characterized in that the distance from the center of the first air outlet to the front opening of the inner tank is d3, the distance from the center of the second air outlet to the back plate of the inner tank is d4, and the depth of the cleaning chamber in the front-to-back direction is D0, satisfying: 0.05≤d3/D0≤0.3, 0.05≤d4/D0≤0.3. 6. The cleaning device according to claim 1, characterized in that the air inlet is located on the top wall of the inner tank; The centers of the first air outlet and the second air outlet are located in the middle of the inner liner side wall; or, the centers of the first air outlet and the second air outlet are located in the lower part of the inner liner side wall. 7. The cleaning device according to any one of claims 1 to 6, characterized in that 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. 8. The cleaning equipment according to any one of claims 1-6 is 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, and the air supply outlet of the air supply branch is connected to the cleaning chamber, and 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. 9. The cleaning device according to any one of claims 1-6 is characterized in that it also includes: a side plate, the heater is installed in the area of the air duct located on the side of the inner tank, the side plate is installed on the side wall of the inner tank, and the cover is arranged outside at least part of the air duct, and the inner side surface of the side plate is separated from the air duct and the heater. 10. The cleaning device according to any one of claims 1 to 6, characterized in that the power of the heater is P, satisfying: P≤500W. 11. The cleaning device according to any one of claims 1 to 6, characterized in that: The cleaning device has an internal circulation drying working mode, in which the fan and the heater are working, 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 assembly are both working, and the heater is stopped.