CN221205349U - Moisture drying device and dish washer - Google Patents

Abstract

The utility model belongs to the technical field of kitchen appliances, and discloses a wet gas drying device and a dish washer. The wet gas drying device comprises a runner shell, a first fan and a second fan, wherein the first fan and the second fan are arranged on the runner shell; an outer drainage runner and a backflow runner are formed in the runner shell, a communication port, a backflow port and an exhaust port are formed in the runner shell, the outer drainage runner is respectively communicated with the exhaust port and the communication port, the backflow runner is communicated with the backflow port, and the communication port and the backflow port are both used for being communicated with a cavity to be dried; the first fan is used for driving the first gas outside the runner shell and the second gas in the cavity to be dried to enter the outer runner; the second fan is used for driving the first gas and/or the second gas to enter the backflow flow channel. The wet gas drying device can improve the drying efficiency of the inner container; the humidity of the discharged mixed air flow is low, so that the cabinet is prevented from being wetted.

Description

Moisture drying device and dish washer

Technical Field

The utility model relates to the technical field of kitchen appliances, in particular to a wet gas drying device and a dish washer.

Background

The temperature in the inner container is high after the dish washer works, and the humidity is high, and the dish washer needs to be dried and cooled in time so as to avoid residual water stains on tableware and avoid burn after a user opens a machine door.

The existing dish-washing machine generally adopts the technology of residual temperature drying and automatic door opening drying. The residual temperature drying technology is most common, and mainly uses the residual temperature after rinsing to dry tableware by standing for a period of time, so that the method has the advantages of low cost and no noise, but has poor drying effect and long time consumption; the automatic door opening and closing technology utilizes strong convection heat exchange in large space to directly discharge water vapor from a door, has good drying effect, low energy consumption and no noise, but easily wets a cabinet, and simultaneously dust, bacteria and insects easily enter the inner container.

Part dish washer is taken out the wet and hot gas in the inner bag, and reinjected in the inner bag after condensing separation steam, realizes drying, because the gaseous humidity is big in the inner bag, leads to condensation time long, condensation effect poor, finally influences drying efficiency.

Disclosure of utility model

The utility model aims to provide a wet gas drying device and a dish washing machine, which can improve the drying effect, reduce the energy consumption and shorten the drying time.

To achieve the purpose, the utility model adopts the following technical scheme:

a moisture drying apparatus comprising:

The drying device comprises a runner shell, wherein an outer drainage runner and a backflow runner are formed in the runner shell, a communication port, a backflow port and an exhaust port are formed in the runner shell, the outer drainage runner is respectively communicated with the exhaust port and the communication port, the backflow runner is communicated with the backflow port, and the communication port and the backflow port are both used for being communicated with a cavity to be dried;

The first fan is arranged on the runner shell and is used for driving first gas outside the runner shell and second gas in the cavity to be dried to enter the outer row runner;

The second fan is arranged on the runner shell and is used for driving the first gas and/or the second gas to enter the backflow runner.

As an alternative of the above moisture drying device, a first inlet communicating with the outer drainage channel is provided on the channel shell, and the first fan is provided in the outer drainage channel and communicates with the first inlet;

Or, the first fan is arranged outside the outer drainage channel, a first inlet is formed in the first fan, and an air outlet of the first fan is communicated with the outer drainage channel.

As an alternative to the above-described moisture drying apparatus, the return flow passage is not in communication with the outside of the flow passage housing;

The backflow runner is communicated with the communication port, the second fan is arranged in the backflow runner, and the backflow runner is not communicated with the outside of the runner shell;

Or, a main runner is formed in the runner shell, the communication port, the outer row runner and the backflow runner are all communicated with the main runner, and the second fan is arranged in the backflow runner or the main runner.

As an alternative of the above moisture drying device, a second inlet communicated with the backflow channel is provided on the channel shell, and the second fan is provided in the backflow channel;

or, the second fan is arranged outside the backflow channel, a second inlet is formed in the second fan, and an air outlet of the second fan is communicated with the backflow channel.

As an alternative to the above-mentioned wet gas drying apparatus, a main flow passage is formed in the flow passage housing, and the communication port, the outer flow passage, and the return flow passage are all communicated with the main flow passage;

or, the backflow runner is communicated with the communication port.

As an alternative to the above-mentioned wet gas drying apparatus, the wet gas drying apparatus further includes a heating assembly disposed in the flow channel housing for heating the gas in the return flow channel.

As an alternative to the above-mentioned moisture drying apparatus, the heating element is disposed in the return flow channel;

Or, heating element includes fixing base and heating element, the heating element set up in the fixing base, be provided with the window on the runner shell, the fixing base removable install in the outer wall of runner shell and can with the window sealing fit, the heating element is located in the runner shell.

As an alternative of the above moisture drying device, a water return groove is formed in the runner casing, and the water return groove is disposed at least around the bottom of the communication port.

As an alternative scheme of the above moisture drying device, the moisture drying device further includes a buckle cover, the communication port and the backflow port are detachably connected with the buckle cover, and the buckle cover is used for connecting the inside of the cavity to be dried with the runner shell, so as to fix the runner shell with the cavity to be dried.

The dishwasher comprises an inner container and the moisture drying device, wherein the first inlet and the backflow port are communicated with the inner container.

The utility model has the beneficial effects that:

In the wet gas drying device provided by the utility model, the second gas is wet air in the liner, and the first gas is dry air outside the runner shell. The wet air in the inner container is mixed with the dry air in the outer flow channel to form a mixed air flow, so that on one hand, the wet air in the inner container is reduced, and the drying efficiency is improved; on the other hand, the humidity of the mixed air flow is lower than that of the wet air, the mixed air flow is drier, and part of the mixed air flow is discharged out of the runner shell through the exhaust port, so that the mildewing and the dampness of the cabinet can be avoided. Through leading wet air in the inner bag, the dry air or the mixed air outside the runner shell into the inner bag through the backflow runner, the air flow entering the inner bag through the backflow runner is drier, the humidity in the inner bag is reduced, and the drying efficiency is accelerated.

The dish washer provided by the utility model comprises the moisture drying device, so that the drying efficiency of the inner container can be improved, the cost is reduced, and the cabinet cannot be affected with moisture.

Drawings

Fig. 1 is a schematic structural diagram of a moisture drying device according to a first embodiment of the present utility model;

fig. 2 is a schematic diagram of a moisture drying device according to a first embodiment of the present utility model;

FIG. 3 is a cross-sectional view of a moisture drying apparatus according to a first embodiment of the present utility model;

fig. 4 is a schematic structural view of a moisture drying device according to an embodiment of the present utility model without a runner cover;

fig. 5 is a sectional view showing a partial structure of a moisture drying apparatus according to an embodiment of the present utility model.

In the figure:

10. A flow passage housing; 101. an outer flow path; 102. a return flow path; 103. a water return tank; 11. a housing; 111. a communication port; 112. a return port; 113. an exhaust port; 114. a flange; 12. a flow channel cover; 121. a first cover; 122. a second cover; 13. a tank body; 20a, a first fan; 20b, a second fan; 21. a volute; 211. a first inlet; 212. a second inlet; 22. a fan main body; 30. a heating assembly; 40. a buckle cover; 41. a top cover; 42. an outer panel; 43. an inner side plate; 50. and a seal.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Example 1

The embodiment provides a moisture drying device for cooling and drying moist hot air in a cavity to be dried. The wet-air drying device can be used in a dish washer, and the embodiment is described by taking a cavity to be dried as an inner container of the dish washer as an example.

As shown in fig. 1 and 2, the moisture drying device includes a flow path case 10, a first fan 20a, and a second fan 20b. A flow passage is formed in the flow passage case 10, and includes an outer flow passage 101 and a return flow passage 102. The flow passage housing 10 is provided with a communication port 111, an exhaust port 113, and a return port 112, and the communication port 111 and the return port 112 are both used for communication with a cavity to be dried (in this embodiment, a liner). The outer flow passage 101 communicates with the exhaust port 113 and the communication port 111, respectively, and the return flow passage 102 communicates with the return port 112. The heating assembly 30 is disposed in the return flow channel 102 for heating the gas in the return flow channel 102. The first fan 20a and the second fan 20b are both disposed on the runner casing 10, and the first fan 20a is configured to drive the first gas outside the runner casing 10 and the second gas in the liner to enter the outer exhaust channel 101, and the first gas and the second gas are mixed and then exhausted through the exhaust port 113. The second fan 20b is used for driving the first gas outside the runner casing 10 to enter the backflow runner 102, and enters the liner from the backflow port 112.

In this embodiment, the first gas is dry air outside the runner housing 10, and the second gas is humid air in the liner. The moisture drying device is divided into an exhaust runner and a return runner 102 which are not communicated. After the first fan 20a is started, the wet air in the liner can be introduced into the outer-row runner 101, and the dry air outside the runner shell 10 can be introduced into the outer-row runner 101, so that the wet air and the dry air are mixed into a mixed air flow, and the humidity of the mixed air flow is lower than that of the wet air, so that the mixed air flow is drier. The mixed air flow is discharged out of the runner shell 10 through the air outlet 113, so that on one hand, the wet air in the liner can be discharged out, the humidity in the liner is reduced to dry the liner, and the drying efficiency is high; on the other hand, the outer row is the mixed air flow, and the humidity of the mixed air flow is lower, so that the mildewing and the dampness of the cabinet can be avoided. After the second fan 20b is started, the dry air outside the runner shell 10 can be introduced into the backflow runner 102, after passing through the backflow runner 102, the dry air enters the liner through the backflow port 112, and the dry air is mixed with the wet air remained in the liner, so that the temperature and the humidity in the liner can be reduced, and the purpose of drying the liner is achieved. In this embodiment, the drying effect of the liner can be improved and the drying efficiency can be improved by discharging and mixing part of the air flow in the liner into the drying air.

As shown in fig. 2, the moisture drying device further includes a heating component 30, where the heating component 30 is used to heat the gas in the backflow channel 102, so as to introduce the high-temperature drying gas into the liner, dry the liner, and improve the drying efficiency of the liner.

In some embodiments, the moisture drying device may not be provided with the heating component 30, and the return flow channel 102 is provided with the drying air outside the flow channel shell 10, so that the effect of reducing the humidity and the temperature in the liner can be achieved by directly introducing the drying air into the liner, and the purpose of drying the liner can be achieved.

As shown in fig. 1 and 3, the first fan 20a and the second fan 20b are disposed on the flow path housing 10, and are located outside the outer discharge flow path 101 and the return flow path 102. The first fan 20a is arranged at the outer side of the outer row of flow channels 101, an air inlet of the first fan 20a is communicated with the outside of the flow channel shell 10, and an air outlet of the first fan 20a is communicated with the outer row of flow channels 101. When the first fan 20a is started, the first gas outside the runner casing 10 is introduced into the outer runner 101, and negative pressure is formed in the outer runner 101, so that the second gas in the liner can enter the outer runner 101 through the communication port 111 to be mixed with the first gas and then discharged. The second fan 20b is disposed outside the backflow channel 102, an air inlet of the second fan 20b is communicated with the outside of the channel shell 10, and an air outlet of the second fan 20b is communicated with the backflow channel 102. When the second fan 20b is started, the first gas outside the runner casing 10 enters the return runner 102 and enters the liner through the return port 112.

Specifically, each of the first fan 20a and the second fan 20b includes a scroll 21 and a fan main body 22 rotatably provided in the scroll 21. The spiral case 21 of the first fan 20a is communicated with the outer discharge flow channel, a first inlet 211 is arranged on the spiral case 21 of the first fan 20a, the first inlet 211 is communicated with the outer discharge flow channel 101, and a fan main body 22 of the first fan 20a is used for driving first gas to enter the outer discharge flow channel 101 through the first inlet 211 and the spiral case 21. When the first gas enters the outer runner 101, the gas in the outer runner 101 flows to the exhaust port 113 under the action of the first fan 20a, so that negative pressure is formed in the outer runner 101, and the second gas in the liner enters the liner from the communication port 111 under the action of the negative pressure.

The volute 21 of the second fan 20b is communicated with the backflow passage 102, and a second inlet 212 is arranged on the volute 21 of the second fan 20b and is communicated with the backflow passage 102. The fan body 22 of the second fan 20b is configured to drive the first gas into the return flow path 102 through the second inlet 212 and the volute 21.

The outer flow channel 101 needs to introduce the gas outside the flow channel shell 10 and the gas in the liner respectively, so that the two gases can enter the outer flow channel 101 for mixing conveniently, the top end of the outer flow channel 101 is connected with the communication port 111, the bottom end of the outer flow channel 101 is the exhaust port 113, and the communication position of the volute 21 of the first fan 20a and the outer flow channel 101 is located between the communication port 111 and the exhaust port 113. The communication port 111 is positioned at the bottom end of the outer drain flow channel 101, so that the position of the moisture entering the outer drain flow channel 101 is higher, and the flow path of the moisture in the outer drain flow channel 101 is prolonged, so that time is provided for condensation and separation of the moisture in the moisture; the first inlet 211 is located on the volute 21 and is close to the fan main body 22, so that the driving effect of the first fan 20a on the air outside the airflow casing 10 is better, the flow rate of the first air entering the outer exhaust flow channel 101 is increased, the humidity and the temperature of the mixed air flow are reduced by increasing the proportion of the first air in the outer exhaust flow channel 101, the influence of the outer exhaust on a cabinet and the like is avoided, and the use experience of a user is improved. The exhaust port 113 is disposed at the bottom end of the outer discharge passage 101, and is positioned to be lowered, so that condensed water in the outer discharge passage 101 can be conveniently discharged. Alternatively, the condensed water in the outer drain flow passage 101 may be discharged into the drain through the exhaust port 113.

The return flow passage 102 only requires an external air flow entering the flow passage housing 10, and therefore the return flow passage 102 is not communicated with the outer flow passage 101, and the return flow passage 102 is not communicated with the communication port 111. The top end of the return flow path 102 communicates with the scroll 21 of the second fan 20b, and the bottom end of the return flow path 102 communicates with the return port 112.

As shown in fig. 1, 3 and 4, the flow passage housing 10 includes a housing 11 and a flow passage cover 12, the housing 11 includes a bottom plate and a plurality of side plates, the plurality of side plates and the bottom plate are combined to form a flow passage groove, and after the flow passage cover 12 is connected with the housing 11, the flow passage cover 12 shields an opening of the flow passage groove to form an outer row of flow passages 101 and a backflow passage 102 with the flow passage groove. The runner cover 12 includes a first cover 121 surrounding the outer runner 101 with the housing 11 and a second cover 122 surrounding the return runner 102 with the housing 11.

After the housing 11 and the runner cover 12 are assembled, a first interface communicated with the first fan 20a is arranged in the middle of the outer row runner 101, and a second interface communicated with the second fan 20b is formed at the top end of the backflow runner 102. The first fan 20a and the second fan 20b are arranged on the bottom plate, the first fan 20a is communicated with the first interface, and the second fan 20b is communicated with the second interface. The first fan 20a and the second fan 20b are arranged on the bottom plate, so that the first fan 20a and the second fan 20b are installed by utilizing the height space of the runner groove, and the thickness of the moisture drying device is reduced, so that the occupied space is reduced.

The heating assembly 30 may include a PTC heater or a heating wire. The PTC heating element is composed of a PTC ceramic heating element and an aluminum tube, and has the advantages of small thermal resistance and high heat exchange efficiency. The heating wire is generally made of iron-chromium-aluminum or nickel-chromium electrothermal alloy, and has the advantages of high heating temperature, long service life and low cost.

In order to ensure that the air flow entering the reflow channel 102 is heated by the heating component 30 and then enters the liner through the reflow opening 112, the reflow channel 102 is divided into a reflow front section and a reflow rear section by the heating component 30, and the heating component 30 is positioned at the joint of the reflow front section and the reflow rear section and is communicated with the reflow front section and the reflow rear section. The air flow in the reflow heating front section can only enter the reflow heating rear section after passing through the heating assembly 30, so as to ensure the heating effect of the heating group on the reflow air flow.

For convenient replacement or maintenance of the heating assembly 30, the heating assembly 30 comprises a fixing seat and a heating element, the heating element is arranged on the fixing seat, a window is arranged on the runner shell 10, the fixing seat is detachably connected with the outer wall of the runner shell 10 and is matched with the window in a sealing manner, and the heating element extends into the backflow runner 102 through the window to heat gas. This kind of setting can realize heating element 30 by the outside dismouting of runner shell 10, conveniently maintains heating element 30.

Alternatively, the heating member may include a heating body for generating heat and a plurality of fins provided at intervals on the heating body, heating the heat generated by the heating body by conduction; the gaps between two adjacent fins are for the passage of air flow.

In other embodiments, the heating assembly 30 may be disposed entirely within the runner housing 10, and the assembly and disassembly of the heating assembly 30 may be achieved by disassembling and assembling the runner housing 10. The runner shell 10 wraps the heating component 30, so that the heating component 30 can be prevented from being contacted with other structures, and the heating component 30 is protected. In order to improve the heating effect on the gas in the backflow channel 102, the heating assembly 30 is a cuboid, one group of surfaces of the heating assembly 30 which are oppositely arranged are an air inlet surface and an air outlet surface respectively, and the other four side surfaces of the heating assembly 30 are all abutted with the inner wall of the backflow channel 102 so as to ensure that the air flow entering the backflow channel 102 passes through the heating assembly 30.

In order to prevent the washing water in the inner container from entering the outer drainage channel 101 through the communication port 111 during the washing process, a water return tank 103 is formed in the channel shell 10, and the water return tank 103 is at least arranged around the bottom of the communication port 111. The water return tank 103 can block the washing water, so that the washing water is gathered in the water return tank 103, and the washing water can flow back into the inner container through the communication port 111, so that the washing water is prevented from entering the outer drain channel 101.

In addition, the water return groove 103 can guide the second gas, so that the second gas flows upwards along the inner wall of the water return groove 103, on one hand, the condensation of the moisture in the second gas on the inner wall of the water return groove 103 can be facilitated, and on the other hand, the flow path of the second gas can be prolonged, and the moisture in the second gas can be cooled and separated out. The condensed water drops into the water return tank 103, and can flow back into the liner to be discharged.

In this embodiment, the lowest point of the water return tank 103 is flush with the lowest point of the communication port 111, so that all the water in the water return tank 103 flows back into the liner.

The runner casing 10 further includes a groove 13, where the groove 13 is covered on the inner wall of the bottom casing, so that the groove 13 and the bottom casing enclose a water return groove 103.

As shown in fig. 2 and 5, the connecting port 111 and the return port 112 are detachably connected with a buckle cover 40, and the buckle cover 40 is used for connecting the liner with the runner casing 10, so as to clamp and fix the liner with the runner casing 10 in a matching manner, thereby fixing the moisture drying device with the liner.

As shown in fig. 5, the buckle cover 40 includes a top cover 41, an inner side plate 43, and an outer side plate 42. The top cover 41 is provided with a central hole, the inner side plate 43 is connected with the wall of the central hole, and the outer side plate 42 is connected with the circumferential edge of the top cover 41. The runner shell 10 is provided with a flange 114 around the communication port 111 and the backflow port 112, the top cover 41 is abutted against the end face of the flange 114, the outer side plate 42 is located on the outer side of the flange 114, the inner side plate 43 is located on the inner side of the flange 114, at least one of the outer side plate 42 and the inner side plate 43 is detachably connected with the flange 114, so that the buckle closure 40 is convenient to detach and mount, the inner wall of the liner is abutted between the outer side plate 42 and the runner shell 10, and the runner shell 10 and the liner are fixed.

In this embodiment, the inner plate 43 is fixed to the flange 114 by screw engagement.

In order to improve the sealing effect of the joint between the liner and the runner casing 10, a sealing element 50 is arranged between the outer side plate 42 and the runner casing 10, and the sealing element 50 can be respectively abutted against the inner walls of the outer side plate 42 and the liner, or respectively abutted against the outer walls of the liner and the runner casing 10, so that the joint can be sealed.

Example two

The present embodiment provides a moisture drying device, which is different from the first embodiment in that the first fan 20a is disposed in the outer flow channel 101, and the second fan 20b is disposed in the return flow channel 102.

Specifically, the runner casing 10 is provided with a first inlet 211 communicated with the outer runner 101 and a second inlet 212 communicated with the backflow runner 102, the first fan 20a is arranged in the outer runner 101, and an air inlet of the first fan 20a is opposite to the first inlet 211; the second fan 20b is disposed in the backflow channel 102, the air inlet of the second fan 20b is opposite to the second inlet 212, and the first fan 20a and the second fan 20b both circumferentially exhaust air.

The first fan 20a and the second fan 20b each include a fan main body 22, the volute 21 may not be provided, the fan main body 22 includes a motor and an impeller, the motor drives the impeller to rotate, and an axial end surface of the impeller is opposite to the first inlet 211 or the second inlet 212.

In some embodiments, the first fan 20a may be disposed outside the outer row of flow channels 101, and the second fan 20b may be disposed inside the return flow channels 102; or the first fan 20a is disposed in the outer discharge channel 101, and the second fan 20b is disposed outside the return channel 102.

Example III

The present embodiment provides a moisture drying device, which is different from the first embodiment and the second embodiment in that the backflow channel 102 is communicated with the communication port 111, the second fan 20b drives the second gas in the inner container and the first gas outside the channel shell 10 into the backflow channel 102 respectively, and the mixed gas flows into the rear inner container after being heated by the heating component 30.

In this embodiment, the gas in the liner is split through the communication port 111, a part of the gas enters the outer flow channel 101 to be mixed with the dry air and then discharged, and another part of the gas enters the return flow channel 102 to be mixed with the dry air and then heated and then enters the liner. This kind of setting can accelerate the moisture in the inner bag and discharge the inner bag, is favorable to improving drying efficiency. The mixed air flow in the backflow channel 102 has low humidity, and enters the liner for drying after being heated and dried, so that the liner has good drying effect and high efficiency.

In this embodiment, the top ends of the backflow channel 102 and the outer-row channel 101 are both connected to the communication port 111, the second fan 20b is disposed in the backflow channel 102 or outside the backflow channel 102, and the first fan 20a may be disposed in the outer-row channel 101 or outside the outer-row channel 101.

Example IV

The present embodiment provides a moisture drying device, which is different from the third embodiment in that the flow passage further includes a main flow passage, the top ends of the outer flow passage 101 and the return flow passage 102 are both communicated with the main flow passage, and the communication port 111 is communicated with the main flow passage. The second gas in the liner enters the main flow channel under the action of the second fan 20b, the second gas in the main flow channel is split, the second gas enters the outer flow channel 101 and the backflow flow channel 102 respectively, the second gas entering the outer flow channel 101 is mixed with the first gas and then discharged, and the second gas entering the backflow flow channel 102 is mixed with the first gas.

In this embodiment, the second fan 20b may be disposed in the main flow channel or in the backflow flow channel 102, and the second inlet 212 is opposite to the axial end surface of the second fan 20b, so as to ensure that the air flow entering the liner through the backflow flow channel 102 is a mixed air flow.

In some embodiments, the second fan 20b may be disposed outside the runner housing 10 and in communication with the return runner 102. The first fan 20a may be disposed in the outer flow path 101 or may be disposed outside the outer flow path 101.

Example five

The present embodiment provides a moisture drying device which is different from the above embodiment in that the air flow in the return flow passage 102 is the second air in the inner container, that is, the return flow passage 102 is not in communication with the outside of the flow passage case 10.

In this embodiment, the backflow passage 102 may be directly connected to the communication port 111, or the backflow passage 102 is connected to the communication port 111 through a main passage, the second fan 20b is disposed in the backflow passage 102, and the second inlet 212 is not disposed on the flow casing 10. The air flow in the liner is split in the communication port 111 or the main flow channel, one part of the air flow enters the outer flow channel 101 to be mixed with the dry air and then discharged, and the other part of the air flow enters the return flow channel 102 to be heated and then enters the liner through the return flow port 112.

Example six

The embodiment provides a dish washer, including the casing, set up in the inner bag of casing, set up the supporter in the inner bag, set up in the spraying subassembly in the casing and the moisture drying device in any one of the above-mentioned embodiments. The spraying component is used for spraying washing water to tableware and the like on the rack arranged in the liner so as to clean the tableware. The communication port 111 and the return port 112 in the wet air drying device are both communicated with the liner to dry the liner.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. A moisture drying apparatus, comprising:

The drying device comprises a runner shell (10), wherein an outer exhaust runner (101) and a backflow runner (102) are formed in the runner shell (10), a communication port (111), a backflow port (112) and an exhaust port (113) are formed in the runner shell (10), the outer exhaust runner (101) is respectively communicated with the exhaust port (113) and the communication port (111), the backflow runner (102) is communicated with the backflow port (112), and the communication port (111) and the backflow port (112) are both used for being communicated with a cavity to be dried;

The first fan (20 a) is arranged on the runner shell (10), and the first fan (20 a) is used for driving first gas outside the runner shell (10) and second gas in the cavity to be dried to enter the outer row runner (101);

The second fan (20 b) is arranged on the runner shell (10), and the second fan (20 b) is used for driving the first gas and/or the second gas to enter the backflow runner (102).

2. The wet gas drying apparatus according to claim 1, wherein a first inlet (211) communicating with the outer row of runners (101) is provided on the runner housing (10), and the first fan (20 a) is provided in the outer row of runners (101) and communicates with the first inlet (211);

Or, the first fan (20 a) is arranged outside the outer row runner (101), a first inlet (211) is formed in the first fan (20 a), and an air outlet of the first fan (20 a) is communicated with the outer row runner (101).

3. The moisture drying device according to claim 1, characterized in that the return flow channel (102) is not in communication with the outside of the flow channel shell (10);

The backflow runner (102) is communicated with the communication port (111), the second fan (20 b) is arranged in the backflow runner (102), and the backflow runner (102) is not communicated with the outside of the runner shell (10);

Or, a main runner is formed in the runner shell (10), the communication port (111), the outer row runner (101) and the backflow runner (102) are all communicated with the main runner, and the second fan (20 b) is arranged in the backflow runner (102) or the main runner.

4. The wet gas drying apparatus according to claim 1, wherein a second inlet (212) communicating with the return flow channel (102) is provided on the flow channel housing (10), and the second fan (20 b) is provided in the return flow channel (102);

or, the second fan (20 b) is arranged outside the backflow channel (102), a second inlet (212) is formed in the second fan (20 b), and an air outlet of the second fan (20 b) is communicated with the backflow channel (102).

5. The wet gas drying apparatus according to claim 4, wherein a main flow passage is formed in the flow passage housing (10), and the communication port (111), the outer flow passage (101), and the return flow passage (102) are all communicated with the main flow passage;

Or, the return flow passage (102) communicates with the communication port (111).

6. The moisture drying apparatus according to any one of claims 1-5, further comprising a heating assembly (30), the heating assembly (30) being arranged to the flow channel housing (10) for heating the gas in the return flow channel (102).

7. The moisture drying apparatus as claimed in claim 6, wherein the heating assembly (30) is arranged within the return flow channel (102);

Or, heating element (30) include fixing base and heating element, the heating element set up in the fixing base, be provided with the window on runner shell (10), the fixing base removable install in the outer wall of runner shell (10) and can with window sealing fit, the heating element is located in runner shell (10).

8. The moisture drying device according to any one of claims 1-5, characterized in that a water return channel (103) is formed in the runner housing (10), which water return channel (103) is arranged at least around the bottom of the communication opening (111).

9. The wet gas drying apparatus according to any one of claims 1-5, further comprising a fastening cover (40), wherein the fastening cover (40) is detachably connected to the communication port (111) and the return port (112), and the fastening cover (40) is used for being connected with the runner casing (10) in the cavity to be dried to fix the runner casing (10) with the cavity to be dried.

10. A dishwasher comprising a liner, characterized in that it further comprises a moisture drying device according to any one of claims 1-9, said communication port (111) and said return port (112) being in communication with said liner.