Cleaning equipment

Abstract

The cleaning equipment comprises an inner container, an air duct, a fan and a heating device, the inner container comprises an inner container wall and a washing cavity defined by the inner container wall, the washing cavity is suitable for being communicated with the outside to exhaust air to the outside, the air duct is provided with an air inlet and an air outlet which are communicated with the washing cavity, and the fan is in fluid communication with the air duct; the heating device is suitable for enabling gas in the washing cavity to enter the air duct from the air inlet and be discharged from the air outlet, is arranged on a fluid path of the air duct and is suitable for being soaked in washing liquid in the washing cavity. The air duct sucks air in the washing cavity under the action of the fan and discharges the air into the washing cavity, the fluid path of the air duct is provided with the heating device, and the heating device achieves internal circulation heating of the air conveyed by the air duct, so that when the cleaning equipment is in the drying stage and exhausts air outwards, the temperature of the washing cavity is prevented from being reduced too fast, and the cleaning efficiency is improved. Therefore, a large amount of condensate water is prevented from being generated, evaporation of water in the washing cavity can be accelerated through heating of the heating device, and therefore the drying time is shortened.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and in particular to a cleaning device. Background Art

[0002] Cleaning equipment such as dishwashers and washing machines need to be dried after washing. Taking dishwashers as an example, dishwashers can dry dishes by discharging internal gas to the outside. This method is called external circulation drying. It has a simple structure and high efficiency. However, this method will lower the internal temperature of the dishwasher and intensify the condensation of moisture inside the dishwasher, which is not conducive to drying. Summary of the invention

[0003] The present application aims to solve the technical problems in the related art at least to a certain extent. To this end, the present application proposes a cleaning device.

[0004] To achieve the above purpose, the present application discloses a cleaning device, which includes:

[0005] An inner tank, the inner tank comprising an inner tank wall and a washing cavity surrounded by the inner tank wall, the washing cavity being adapted to be connected to the outside to exhaust air to the outside;

[0006] An air duct, provided with an air inlet and an air outlet communicating with the washing chamber;

[0007] a fan, in fluid communication with the air duct, adapted to allow the gas in the washing chamber to enter the air duct from the air inlet and be discharged from the air outlet; and

[0008] The heating device is arranged on the fluid path of the air duct and is suitable for being immersed in the washing liquid in the washing chamber.

[0009] In some embodiments of the present application, the heating device passes through the inner tank wall.

[0010] In some embodiments of the present application, the inner tank wall includes a bottom plate disposed below the washing cavity, and the heating device passes through the bottom plate.

[0011] In some embodiments of the present application, the heating device includes a heating tube, and both ends of the heating tube pass through the inner tank wall respectively.

[0012] In some embodiments of the present application, a portion of the air duct is covered with the heating device.

[0013] In some embodiments of the present application, the portion of the air duct abuts against the inner tank wall to enclose the air outlet.

[0014] In some embodiments of the present application, the air outlet comprises a plurality of air outlets, and the plurality of air outlets surround the heating device.

[0015] In some embodiments of the present application, a portion of the air duct is located in the washing chamber, and another portion of the air duct is located outside the inner tank.

[0016] In some embodiments of the present application, the inner tank wall is provided with a first through hole connected to the washing chamber, the air duct includes a first shell and a second shell, the first shell is provided in the washing chamber, the second shell is connected to the inner tank wall and is located outside the inner tank, and the first shell and the second shell are connected through the first through hole.

[0017] In some embodiments of the present application, the air inlet is located above the washing liquid level in the washing chamber.

[0018] In some embodiments of the present application, the inner tank wall includes a top plate arranged above the washing chamber, the top plate is provided with a second through hole connected to the washing chamber, and the gas in the washing chamber is suitable to be drawn away by the fan through the second through hole.

[0019] In some embodiments of the present application, the fan includes a fan casing, an inlet of the fan casing is connected to the second through hole, and an outlet of the fan casing is connected to the air inlet.

[0020] The technical solution of the present application is to set up an air duct, which sucks the gas in the washing chamber and discharges it into the washing chamber under the action of the fan, and set up a heating device on the fluid path of the air duct, which realizes the internal circulation heating of the gas transmitted by the air duct, so that when the cleaning equipment is in the drying stage and exhausts to the outside, the temperature of the washing chamber is prevented from dropping too fast, thereby avoiding the generation of a large amount of condensed water, and the heating of the heating device can accelerate the evaporation of water in the washing chamber, thereby shortening the drying time. In addition, since the heating device is set to be immersed in the washing liquid, the heating device can heat the washing liquid when the cleaning equipment is in the washing stage in addition to heating the gas when the cleaning equipment is in the drying stage, thereby improving the cleaning effect.

[0021] Other advantages of the present application will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other designs can be obtained based on the structures shown in these drawings without paying any creative work.

[0023] Figure 1It is a schematic diagram of a partial structure of a dishwasher in some embodiments;

[0024] Figure 2 Schematic diagram of the coordination between the air duct and the fan in some embodiments;

[0025] Figure 3 Schematic diagram of a heating device in some embodiments.

[0026] Description of Figure Numbers:

[0027] Inner tank 1000, inner tank wall 1100, top plate 1110, bottom plate 1120, left side plate 1130, right side plate 1140, first through hole 1141, rear side plate 1150, washing chamber 1200;

[0028] Air duct 2000, first housing 2100, air outlet 2110, second housing 2200, air inlet 2210;

[0029] Fan 3000, fan housing 3100;

[0030] Heating device 4000;

[0031] Heating tube 4100.

[0032] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0034] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0035] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] In addition, in this application, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0037] The present application proposes a cleaning device, which can clean a target object. Hereinafter, the cleaning device will be described in detail by taking a dishwasher as an example. It can be understood that the cleaning device in the present application is not limited to a dishwasher, but can also be other types of cleaning devices such as a washing machine.

[0038] A dishwasher is a device for washing tableware, comprising an inner tank 1000, a bowl basket, a washing pump and a spray arm. The inner tank 1000 is a hollow structure, comprising an inner tank wall 1100. The space enclosed by the inner tank wall 1100 (the internal space of the inner tank 1000) constitutes a washing chamber 1200. The bowl basket can be moved in and out of the washing chamber 1200, and tableware is loaded on the bowl basket. When the dishwasher is working, a certain amount of water will be introduced into the washing chamber 1200. The inlet of the washing pump is connected to the washing chamber 1200, so that the water in the washing chamber 1200 can be sucked. The outlet of the washing pump is connected to the spray arm, so that water can be transported to the spray arm and sprayed out from the spray arm, thereby achieving the cleaning of the tableware.

[0039] After the dishwasher finishes washing the dishes, the water in the washing chamber 1200 needs to be drained away by a drainage pump. After that, the dishwasher enters a drying stage. The dishwasher dries the dishes during the drying stage. Several drying methods are introduced below.

[0040] The first drying method: residual temperature drying. At the end of the washing stage, the water temperature is increased to increase the washing temperature. After the washing stage, it enters the drying stage and uses the residual heat of the tableware to dry the tableware. This method has a slow drying speed and is prone to form condensation water on the inner tank wall 1100 and the tableware.

[0041] The second drying method: internal circulation ventilation, the gas in the washing chamber 1200 is sucked and transported to a medium, the medium can remove moisture from the gas, and then the gas after dehumidification is transported back to the washing chamber 1200, thereby reducing the humidity to achieve the purpose of drying the dishes. This method is less efficient, more difficult to achieve rapid drying, and the medium adsorption is prone to form odor.

[0042] The third drying method: automatic door opening. After washing, the dishwasher will control the door to automatically open a certain angle, thereby opening the washing chamber 1200. The high-temperature and high-humidity gas in the washing chamber 1200 will be discharged to the outside. This solution has a simple structure and high efficiency, but due to safety reasons, it can only achieve automatic door opening. After opening the door, it needs to be closed manually, otherwise there is a risk of foreign matter entering.

[0043] The fourth drying method: external circulation ventilation. The washing chamber 1200 needs to be designed to be connected to the outside world (it can be understood that the outside world refers to the space outside the inner tank 1000, the same below). When the dishwasher is in the drying stage, it will exhaust to the outside world. It can be understood that while exhausting to the outside world, it is necessary to suck the outside gas (air) into the washing chamber 1200. For example, the inner tank wall 1100 is provided with an inlet and an outlet. The inlet of the inner tank wall 1100 and the outlet of the inner tank wall 1100 are respectively connected to the washing chamber 1200 and the outside world. The inlet of the inner tank wall 1100 and / or the outlet of the inner tank wall 1100 are equipped with an exhaust fan, thereby driving the outside gas (air) to enter the washing chamber 1200 through the inlet of the inner tank wall 1100 and be discharged to the outside world from the outlet of the inner tank wall 1100, thereby taking away the high-temperature and high-humidity gas in the washing chamber 1200 to achieve the drying of the tableware. However, as the high-temperature and high-humidity gas is discharged to the outside, the temperature of the washing chamber 1200 decreases, and the moisture in the gas in the washing chamber 1200 is easily condensed, forming condensed water on the inner tank wall 1100 and the tableware, which is not conducive to drying.

[0044] To this end, based on the drying method of external circulation ventilation, this application proposes an improvement, combining Figure 1As shown, in some embodiments of the present application, the dishwasher includes an inner tank 1000, an air duct 2000, a fan 3000 and a heating device 4000. By setting the air duct 2000, the air duct 2000 sucks the gas in the washing chamber 1200 under the action of the fan 3000 and discharges it back into the washing chamber 1200. The heating device 4000 is set on the fluid path of the air duct 2000. The heating device 4000 realizes the internal circulation heating of the gas transmitted by the air duct 2000, so that when the dishwasher is in the drying stage and exhausts to the outside, the temperature of the washing chamber 1200 is prevented from dropping too fast, thereby avoiding the generation of a large amount of condensed water, and the heating of the heating device 4000 can accelerate the evaporation of water in the washing chamber 1200, thereby shortening the drying time. In addition, since the heating device 4000 is set to be immersed in the washing liquid, the heating device 4000 can heat the washing liquid when the dishwasher is in the washing stage in addition to heating the gas when the dishwasher is in the drying stage, thereby improving the cleaning effect.

[0045] Specifically, the inner tank wall 1100 includes a bottom plate 1120, a rear side plate 1150, a left side plate 1130, a right side plate 1140 and a top plate 1110. The bottom plate 1120, the rear side plate 1150, the left side plate 1130, the right side plate 1140 and the top plate 1110 together enclose a washing chamber 1200 that is open to the front. The front of the washing chamber 1200 is opened and closed by a door. When the dishwasher is in the drying stage, the washing chamber 1200 needs to be connected to the outside world to exhaust the air to the outside world. It can be understood that exhausting the air to the outside world means that the outside gas (air) will be input into the washing chamber 1200 while exhausting the air to the outside world, so as to realize external circulation ventilation. The specific external circulation ventilation method is not limited, as long as the outside gas (air) can enter the washing chamber 1200 and be discharged from the washing chamber 1200.

[0046] The air duct 2000 can realize the transmission of gas, and has an air outlet 2110 and an air inlet 2210. Both the air outlet 2110 and the air inlet 2210 need to be connected to the washing chamber 1200. The fan 3000 is designed to be connected to the fluid of the air duct 2000. The so-called fluid connection means that when the fan 3000 rotates, it can drive the gas to enter from the air inlet 2210 of the air duct 2000 and be re-discharged to the washing chamber 1200 from the air outlet 2110 of the air duct 2000. For example, the fan 3000 is arranged in the air duct 2000 and is located between the air inlet 2210 of the air duct 2000 and the air outlet 2110 of the air duct 2000. The fan 3000 can be installed at the air inlet 2210 of the air duct 2000, or the fan 3000 can be installed at the air outlet 2110 of the air duct 2000. No excessive restrictions are made here. The heating device 4000 is disposed on the fluid path of the air duct 2000 , so that when the gas is transmitted through the air duct 2000 , the gas will blow through the heating device 4000 , thereby taking away the heat of the heating device 4000 .

[0047] When the dishwasher is in the drying stage, the dishwasher discharges the gas in the washing chamber 1200 to the outside, and at the same time sucks the outside gas (air) into the washing chamber 1200. During this process, the fan 3000 and the heating device 4000 work. The fan 3000 allows the gas in the washing chamber 1200 to enter the air duct 2000 from the air inlet 2210 and be discharged into the washing chamber 1200 from the air outlet 2110. At the same time, the gas transmitted by the air duct 2000 blows through the heating device 4000, so that the gas re-delivered from the air duct 2000 to the washing chamber 1200 has a higher temperature, thereby preventing the temperature of the washing chamber 1200 from dropping too quickly when the dishwasher is in external circulation ventilation, thereby preventing the gas moisture in the washing chamber 1200 from condensing into condensed water. Combined with the external circulation ventilation method, the dehumidification capacity can be further improved and the drying time can be shortened.

[0048] In addition, when the dishwasher is in the washing stage, the heating device 4000 needs to be immersed in water. The immersion here can be complete immersion or partial immersion, as long as the water can be heated, thereby enhancing the cleaning effect of the tableware. It can be understood that when the dishwasher is working, a certain amount of water will be introduced into the washing chamber 1200 of the inner tank 1000. This water is regarded as washing liquid. When the water volume reaches the preset amount, the water surface constitutes the washing liquid surface. When the dishwasher is in the washing stage, the heating device 4000 is immersed in water. In this way, in addition to heating gas in the drying stage of the dishwasher, the heating device 4000 can also heat water in the washing stage to increase the water temperature for the convenience of washing the tableware. For example, the heating device 4000 is designed to be below the washing liquid surface. In this case, the heating device 4000 can be completely immersed in water. It can also be designed that part of the heating device 4000 is below the washing liquid surface. In this case, the heating device 4000 will not be completely immersed in water.

[0049] When the dishwasher is in the washing stage, the heating device 4000 is immersed in water, thereby heating the water. When the washing stage of the dishwasher is finished, the water in the washing chamber 1200 will be drained away by the drainage pump. At this time, the heating device 4000 is no longer immersed in water, and the dishwasher enters the drying stage. The heating device 4000 can heat the gas.

[0050] In some embodiments of the present application, the heating device 4000 is arranged to pass through the inner tank wall 1100, so as to facilitate the electrical connection between the heating device 4000 and the external device. It is understandable that the heating device 4000 needs to emit heat under the action of power supply, and because the heating device 4000 needs to be designed to be immersed in water, in order to facilitate the connection of the heating device 4000 to electricity, the heating device 4000 is designed to pass through the inner tank wall 1100, so that a part of the heating device 4000 is in the washing chamber 1200, and the other part is exposed outside the inner tank 1000. The part of the heating device 4000 in the washing chamber 1200 constitutes a heat source, and the other part of the heating device 4000 outside the inner tank 1000 is convenient for electrical connection with external devices.

[0051] Generally speaking, when the dishwasher is in the washing stage, the water introduced into the washing chamber 1200 will not fill the washing chamber 1200, otherwise the spray arm will not be able to spray water to clean the dishes. The washing liquid level will be designed to be at a lower height, as long as the circulating water volume can be met. As mentioned above, the inner tank wall 1100 includes a bottom plate 1120, a rear side plate 1150, a left side plate 1130, a right side plate 1140 and a top plate 1110. In order to enable the heating device 4000 to heat water when the dishwasher is in the washing stage, the heating device 4000 can be set at the bottom of the bottom plate 1120, the bottom of the rear side plate 1150, the bottom of the left side plate 1130 or the bottom of the right side.

[0052] Combination Figure 1 As shown, in some embodiments of the present application, the heating device 4000 is arranged on the bottom plate 1120 and passes through the bottom plate 1120. Generally speaking, the space below the bottom plate 1120 is the base of the dishwasher, and the base also includes other components. The heating device 4000 is arranged through the bottom plate 1120 to facilitate the electrical connection between the heating device 4000 and other components (such as the electric control board), and the space below the bottom plate 1120 is relatively larger to facilitate wiring. In addition, the heating device 4000 is arranged on the bottom plate 1120, which is also more convenient for completely immersing the heating device 4000 in water, so as to fully utilize the heating device 4000 to heat the water in the washing chamber 1200.

[0053] Combination Figure 3 As shown, in some embodiments of the present application, the heating device 4000 includes a heating tube 4100, through which water and gas are heated. Both ends of the heating tube 4100 are more easily set through the inner tank wall 1100 to facilitate fixation.

[0054] Combination Figures 1 to 3As shown, in some embodiments of the present application, part of the air duct 2000 is designed to cover the heating device 4000 so that the heating device 4000 is located on the fluid path of the air duct 2000 , thereby facilitating the installation of the air duct 2000 and the heating device 4000 .

[0055] Specifically, since the heating device 4000 needs to be electrically connected to external components and also needs to be set on the fluid path of the air duct 2000, in order to facilitate the installation of the air duct 2000 and the heating device 4000, the air duct 2000 and the heating device 4000 are designed to be separate and cooperate with each other after being installed separately. For example, the heating device 4000 can be first installed on the inner tank wall 1100. Since there is no obstruction from the air duct 2000, the heating device 4000 can be easily fixed to the inner tank wall 1100. After the heating device 4000 is installed, the air duct 2000 can be installed. Since the heating device 4000 has been fixed at a predetermined position at this time, part of the air duct 2000 is designed to cover the heating device 4000. That is, when the air duct 2000 is installed at a predetermined position, the air duct 2000 cooperates with the heating device 4000, so that the heating device 4000 is on the fluid path of the air duct 2000, which facilitates the installation of both the heating device 4000 and the air duct 2000.

[0056] Combination Figure 1 As shown, in some embodiments of the present application, when a portion of the air duct 2000 is covered with the heating device 4000 , the portion of the air duct 2000 needs to abut against the inner liner wall 1100 , and the inner liner wall 1100 encloses the air outlet 2110 .

[0057] Specifically, taking the example of the heating device 4000 being arranged on the bottom plate 1120, the bottom of the air duct 2000 needs to abut against the bottom plate 1120 so as to cover the heating device 4000. It can be understood that the abutment here can be a close contact between the bottom of the air duct 2000 and the bottom plate 1120, or there is a certain gap between the bottom of the air duct 2000 and the bottom plate 1120. The above two situations can be regarded as abutment. When the bottom of the air duct 2000 abuts against the bottom plate 1120, the bottom plate 1120 realizes the enclosure of the air outlet 2110, that is, the air outlet 2110 of the air duct 2000 is in the form of opening downward, so that it can be enclosed by the bottom plate 1120 after the air duct 2000 is installed in place. When the dishwasher is in the washing stage, food residues on the tableware will enter the water and flow with the water. Since the heating device 4000 needs to be immersed in water and the bottom of the air duct 2000 needs to be covered with the heating device 4000, food residues may enter the space between the bottom of the air duct 2000 and the bottom plate 1120. The air outlet 2110 is designed to be open downward, and the food residues that enter the space between the bottom of the air duct 2000 and the bottom plate 1120 are convenient to discharge, and are not easy to accumulate and cause the generation of odor.

[0058] Combination Figure 1 and Figure 2 As shown, in some embodiments of the present application, the air outlet 2110 includes multiple air outlets 2110, and the multiple air outlets 2110 are designed to be arranged around the heating device 4000, thereby enhancing the heat exchange effect between the gas and the heating device 4000, enhancing the disturbance of the gas in the washing chamber 1200, making the temperature distribution more uniform, thereby further shortening the drying time.

[0059] Specifically, taking the heating device 4000 set on the bottom plate 1120 as an example, the multiple air outlets 2110 are roughly in the same horizontal plane, and the gas in the air duct 2000 flows through the heating device 4000 and then flows out from the multiple air outlets 2110 to the washing chamber 1200. Since the multiple air outlets 2110 surround the heating device 4000, that is, the multiple air outlets 2110 form a plurality of air outlet directions, the gas discharged from the multiple air outlets 2110 can flow in different directions, thereby enhancing the gas disturbance in the washing chamber 1200. Since the gas discharged from the air duct 2000 has a higher temperature, the temperature distribution of the washing chamber 1200 is more uniform, avoiding the existence of dead corners, and can minimize the formation of condensed water, thereby accelerating the drying efficiency.

[0060] Combination Figure 1As shown, in some embodiments of the present application, a portion of the air duct 2000 is designed to be located in the washing chamber 1200, while another portion of the air duct 2000 is designed to be located outside the inner tank 1000, so as to facilitate fluid communication between the air duct 2000 and the fan 3000.

[0061] Specifically, the fan 3000 needs to be connected to a power source to work, that is, it needs to be electrically connected to other components. If the fan 3000 is built into the washing chamber 1200, then in order to connect the fan 3000 to electricity, the lead wire needs to pass through the inner tank wall 1100 from the washing chamber 1200 and be exposed to the outside. Since the washing chamber 1200 is a high-temperature and high-humidity water environment, the lead wire is prone to short circuit in the washing chamber 1200. Therefore, another part of the air duct 2000 is designed outside the inner tank 1000, so that the fan 3000 can be set outside the inner tank 1000 to achieve fluid communication with the above-mentioned other part of the air duct 2000. The power connection of the fan 3000 does not require the lead wire to be in a water environment, which is more convenient and safe.

[0062] In order to facilitate the installation of the air duct 2000, Figure 2 As shown, in some embodiments of the present application, the air duct 2000 includes a second shell 2200 and a first shell 2100 connected to the second shell 2200, and the second shell 2200 is installed on the outside of the inner tank 1000, thereby constituting another part of the air duct 2000 mentioned above, and the first shell 2100 is installed on the inside of the inner tank 1000, that is, in the washing chamber 1200, thereby constituting a part of the air duct 2000 mentioned above, and in order to achieve communication between the second shell 2200 and the first shell 2100, the inner tank wall 1100 is provided with a first through hole 1141, and the first through hole 1141 connects the washing chamber 1200 and the outside, and the second shell 2200 and the first shell 2100 are connected through the first through hole 1141.

[0063] For example, the first housing 2100 is connected to the first through hole 1141, and the second housing 2200 is connected to the first through hole 1141, so that the second housing 2200 and the first housing 2100 are connected. Alternatively, the first housing 2100 is connected to the second housing 2200 through the first through hole 1141. Alternatively, the second housing 2200 is connected to the first housing 2100 through the first through hole 1141. All of the above solutions can achieve the communication between the second housing 2200 and the first housing 2100.

[0064] As can be seen from the above, under the action of the fan 3000, the gas in the washing chamber 1200 enters the air duct 2000 from the air inlet 2210 and is re-discharged into the washing chamber 1200 from the air outlet 2110. Therefore, there can be a variety of options for the specific position of the air inlet 2210. For example, the air inlet 2210 can be set below the washing liquid level, or the air inlet 2210 can be set above the washing liquid level. In some embodiments of the present application, the air inlet 2210 is set above the washing liquid level, and the air outlet 2110 is set below the washing liquid level. The air inlet 2210 and the air outlet 2110 form a high and low combination, which makes it easier to circulate the gas in the washing chamber 1200 and accelerate the flow of the gas.

[0065] Furthermore, combined with Figure 1 As shown, in some embodiments of the present application, a second through hole (not shown in the figure) is provided on the top plate 1110, and the second through hole is connected to the washing chamber 1200. By providing the second through hole, the gas in the washing chamber 1200 can flow from bottom to top through the second through hole and be sucked into the air duct 2000. Since the air outlet 2110 is set at a lower position, the flow of the gas in the washing chamber 1200 can be increased, so that the temperature distribution is more balanced. In addition, since the second through hole is provided on the top plate 1110, the water splashed in the washing chamber 1200 is not easy to enter the fan 3000 through the second through hole.

[0066] Combination Figure 1 and Figure 2 As shown, in some embodiments of the present application, the fan 3000 includes a fan casing 3100. For example, the fan casing 3100 constitutes a volute structure. The inlet of the fan casing 3100 is connected to the second through hole, so that the gas in the washing chamber 1200 can be directly sucked and delivered to the air duct 2000, which is more efficient. The outlet of the fan casing 3100 is connected to the air inlet 2210 of the air duct 2000. The fan casing 3100 is a separately manufactured component relative to the air duct 2000, which facilitates the assembly of the fan 3000 and the air duct 2000 for fluid connection.

[0067] The above description is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. All equivalent structural changes made based on the concept of the present application and the contents of the present application description and drawings, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A cleaning device, characterized in that: include: An inner tank, the inner tank comprising an inner tank wall and a washing cavity surrounded by the inner tank wall, the washing cavity being adapted to be connected to the outside to exhaust air to the outside; An air duct, provided with an air inlet and an air outlet communicating with the washing chamber; a fan, in fluid communication with the air duct, adapted to allow the gas in the washing chamber to enter the air duct from the air inlet and be discharged from the air outlet; as well as The heating device is arranged on the fluid path of the air duct and is suitable for being immersed in the washing liquid in the washing chamber.

2. The cleaning device according to claim 1, characterized in that: The heating device passes through the inner container wall.

3. The cleaning device according to claim 2, characterized in that: The inner tank wall comprises a bottom plate arranged below the washing cavity, and the heating device passes through the bottom plate.

4. The cleaning device according to claim 2 or 3, characterized in that: The heating device comprises a heating tube, and two ends of the heating tube respectively pass through the inner container wall.

5. The cleaning device according to claim 2 or 3, characterized in that: The heating device is partially covered by the air duct.

6. The cleaning device according to claim 5, characterized in that: The portion of the air duct abuts against the inner tank wall to enclose the air outlet.

7. The cleaning device according to claim 5, characterized in that: The air outlet comprises a plurality of air outlets, and the plurality of air outlets surround the heating device.

8. The cleaning device according to claim 1, characterized in that: A portion of the air duct is located in the washing cavity, and another portion of the air duct is located outside the inner tank.

9. The cleaning device according to claim 8, characterized in that: The inner tank wall is provided with a first through hole connected to the washing chamber, and the air duct includes a first shell and a second shell, the first shell is provided in the washing chamber, the second shell is connected to the inner tank wall and is located outside the inner tank, and the first shell and the second shell are connected through the first through hole.

10. The cleaning device according to claim 1, characterized in that: The air inlet is located above the washing liquid level in the washing chamber.

11. The cleaning device according to claim 10, characterized in that: The inner tank wall includes a top plate arranged above the washing chamber, the top plate is provided with a second through hole communicating with the washing chamber, and the gas in the washing chamber is suitable to be sucked away by the fan through the second through hole.

12. The cleaning device according to claim 11, characterized in that: The fan comprises a fan casing, an inlet of the fan casing is connected to the second through hole, and an outlet of the fan casing is connected to the air inlet.

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