CN111481149A - Air duct structure of dish washing machine and dish washing machine with air duct structure - Google Patents

Abstract

The invention discloses an air duct structure of a dish washing machine and the dish washing machine with the air duct structure, comprising a first air duct and a second air duct which are communicated with an accommodating chamber of the dish washing machine; wherein, a fan unit is arranged in the first air channel; the air in the accommodating chamber is exhausted out of the dishwasher through the first air duct or the second air duct under the action of the fan unit. The invention provides an air duct structure of a dish-washing machine and the dish-washing machine with the air duct structure, wherein a cross flow fan is arranged on an air inlet channel, and the influence of the dish-washing machine on the surrounding environment is reduced by utilizing the characteristics of large air volume and low noise of the cross flow fan; furthermore, the cross-flow fan adopts a use mode of air supply or air exhaust and is combined with a use mode of arranging the heating element PTC on the air inlet channel or the air exhaust channel, so that the flexibility of drying inside the dish-washing machine is improved; furthermore, it is realized that the drying of the dishwasher can be realized more quickly whether the cross-flow fan injects the air flow into the dishwasher or extracts the air flow from the dishwasher.

Description

Air duct structure of dish washing machine and dish washing machine with air duct structure

Technical Field

The invention belongs to the technical field of household appliances, and particularly relates to an air duct structure of a dish washing machine and the dish washing machine with the air duct structure.

Background

With the improvement of living standard, the requirements of people on living quality are higher and higher, so that the requirements on the quality, the performance, the humanization of use, the intellectualization of operation and the like of products are higher and higher. The dish washing machine as an excellent product also gradually enters the life of people, is equipment for automatically cleaning dishes, chopsticks, plates, dishes, knives, forks and the like, and greatly facilitates the life of people. The dish washing machine generally needs to dry the dishes after washing the dishes, and in the existing dish washing machine, one part of the dish washing machine utilizes waste heat to dry the dishes, and the other part of the dish washing machine utilizes an additional drying system to dry the dishes. The drying system can be an air exhaust system, and humid air in the dishwasher is exhausted to the outside through the air exhaust system so as to achieve the aim of drying. The air source of the existing dish washer is mostly provided with a centrifugal fan and an axial flow fan, the fan has the defects of small air volume, high noise and the like, and the defects can be effectively avoided by adopting a perfusion fan, so that the air volume is large and the noise is low.

Chinese patent application No. CN201720747062.8 discloses an exhaust system and a dishwasher including the same. The air exhaust system comprises a fan assembly, an air duct and an air outlet structure, wherein an outlet of the fan assembly is connected to an air inlet connecting portion of the air duct, the air outlet structure is connected to the air duct in a sliding mode, and at least part of the air outlet structure can be communicated with an air outlet of the air duct.

Chinese patent with application number CN201620180046.0 discloses a condensation exhaust pipe of dish washer, condensation drying device and dish washer of dish washer, wherein, the condensation exhaust pipe of dish washer is used for setting up between the inner door and the outer door of dish washer, it includes the pipeline body, the pipeline body has the condensation inner chamber, locate the condensation entry on condensation inner chamber top and locate the condensation export of condensation inner chamber bottom, the inner wall of condensation inner chamber includes the vertical wall of a plurality of vertical downwardly extending and the slope wall of a plurality of slope downwardly extending, each vertical wall sets up along vertical direction with each slope wall in turn.

Although the prior art discloses a technical scheme for exhausting air of a dish washer, the shortcomings of small air quantity, high noise and the like of a drying fan still exist.

Therefore, the defects and shortcomings of the prior art need to be improved, and the cross-flow fan is arranged in the air inlet channel, so that the influence of the dish washing machine on the surrounding environment is reduced by utilizing the characteristics of large air volume and low noise of the cross-flow fan; the cross-flow fan adopts a use mode of air supply or air exhaust and is combined with a use mode of arranging the heating element PTC on the air inlet channel or the air exhaust channel, so that the flexibility of drying inside the dish-washing machine is improved; the drying of the dish washing machine can be realized more quickly no matter the cross flow fan injects air flow into the dish washing machine or extracts air flow from the dish washing machine.

The present invention has been made in view of this situation.

Disclosure of Invention

The technical problem to be solved by the present invention is to overcome the disadvantages of the prior art and to provide a wind tunnel structure of a dishwasher that can overcome the above problems or at least partially solve the above problems.

Another object of the present invention is to provide a dishwasher having the air duct structure.

In order to solve the technical problems, the invention adopts the technical scheme that: an air duct structure of a dish washer comprises

A first air duct and a second air duct communicated with the accommodation chamber of the dishwasher;

wherein, a fan unit is arranged in the first air channel;

the air in the accommodating chamber is exhausted out of the dishwasher through the first air duct or the second air duct under the action of the fan unit.

Further, the above

The fan unit is configured to supply air to the accommodating chamber through the first air duct;

the air in the accommodating chamber is discharged out of the dish-washing machine from the second air channel under the action of the fan unit;

in one embodiment, the fan unit is a cross-flow fan disposed within the first air duct.

Further, the

A heating unit is also arranged in the first air channel;

in one embodiment, the heating unit forms a heating panel within the first air channel that covers at least the flow field of the air supplied by the fan unit.

Furthermore, the heating unit is a PTC heater disposed in the first air duct.

Still further, the

The heating unit is arranged in an area formed by the air inlet direction of the fan unit and the interior of the first air channel;

in one embodiment, the air generated by the fan unit flows through the heating unit from the first air channel, is heated to form dry hot air, and then enters the accommodating chamber;

the hot air for drying is in the chamber, and after the chamber is dried, the hot air is discharged out of the dish washing machine from the second air duct.

At the same time, the

The fan unit is configured to draw air from the accommodation chamber through the first air duct;

the air in the accommodating chamber is discharged out of the dish-washing machine from the first air channel under the action of the fan unit;

in one embodiment, the fan unit is a cross-flow fan disposed within the first air duct.

Further, the

A heating unit is also arranged in the second air duct;

in one embodiment, the heating unit forms a heating web in the second air duct that covers at least the region of the cross section of the second air duct.

Furthermore, the heating unit is a PTC heater disposed in the second air duct.

Still further, the

The heating unit is arranged in an area formed in the air inlet direction of the second air duct;

in one embodiment, the air in the receiving chamber is forced by the fan unit to tend to exit the dishwasher along the first air duct from the receiving chamber;

in one embodiment, the second air duct enables the air to enter the accommodating chamber from the second air duct after being heated by a heating unit arranged on the second air duct to form dry hot air under the action of negative pressure formed in the accommodating chamber;

dry hot-blast in holding the cavity, realize holding the stoving back of cavity, from first wind channel discharge dish washer.

A dishwasher comprises

The air duct structure of the dishwasher is characterized in that the air duct structure comprises a plurality of air ducts;

in one embodiment, further comprising

A sink configured to receive items to be washed;

the space of the water tank for accommodating the articles to be washed forms an accommodating chamber.

After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:

1. the cross-flow fan is arranged at the air inlet channel, so that a large amount of air sources are injected into or discharged from the dish washing machine, the flow of air is accelerated, and the dish washing machine can be dried more quickly no matter the cross-flow fan injects air flow into the dish washing machine or extracts the air flow from the dish washing machine;

2. the heating element PTC is arranged in the air inlet channel or the air exhaust channel, air is supplied to the interior of the dish washing machine or is exhausted from the interior of the dish washing machine through the cross flow fan, so that the air passing through the heating element PTC is heated, the heated air is sent into the interior of the dish washing machine to carry out thermal circulation, and wet water vapor is taken away, so that the drying of the internal environment of the dish washing machine is realized;

3. the cross flow fan adopts air supply or air draft, and the air inlet channel or the air exhaust channel is provided with a heating element PTC and the like, so that the flexibility of drying inside the dish-washing machine is improved.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

In the drawings:

FIG. 1 is a first schematic view of a dishwasher having a duct structure according to the present invention;

FIG. 2 is a second schematic view of the dishwasher having the air duct structure of the present invention;

FIG. 3 is a third schematic view of the dishwasher having the air duct structure according to the present invention;

FIG. 4 is a first schematic view of a price adjustment assembly within the air duct structure of the present invention;

FIG. 5 is a second schematic view of a price adjustment assembly within the air duct structure of the present invention;

FIG. 6 is a fourth schematic view of the dishwasher having the air duct structure according to the present invention.

In the figure: 1. a housing chamber; 2. a first air duct; 201. a fan unit; 3. a second air duct; 301. an adjustment assembly; 302. a first adjusting unit; 303. a second adjusting unit; 304. a rotating shaft; 4. a heating unit; 5. a steam generating assembly; 501. a first connecting pipe; 502. a second connecting pipe; 503. a third connecting pipe; 504. a power unit; 505. heating the tube.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

With the improvement of living standard, the requirements of people on living quality are higher and higher, so that the requirements on the quality, the performance, the humanization of use, the intellectualization of operation and the like of products are higher and higher. The dish washing machine as an excellent product also gradually enters the life of people, is equipment for automatically cleaning dishes, chopsticks, plates, dishes, knives, forks and the like, and greatly facilitates the life of people. The dish washing machine generally needs to dry the dishes after washing the dishes, and in the existing dish washing machine, one part of the dish washing machine utilizes waste heat to dry the dishes, and the other part of the dish washing machine utilizes an additional drying system to dry the dishes. The drying system can be an air exhaust system, and humid air in the dishwasher is exhausted to the outside through the air exhaust system so as to achieve the aim of drying. The air source of the existing dish washer mostly adopts a centrifugal fan and an axial flow fan to provide the air source, the fan has the defects of small air volume, high noise and the like, the defects can be effectively avoided by adopting a perfusion fan, the air volume is large, the noise is low, and based on the technical problems, the invention provides the following technical scheme.

Fig. 1 to 3 and 6 are schematic structural views of a dishwasher having an air duct structure according to the present invention, which respectively show a containing chamber 1 of the dishwasher and a setting relationship of a first air duct 2, a second air duct 3 and a steam generating assembly 5 connected to the containing chamber 1, and it can be seen from the drawings that the containing chamber 1 is provided with the first air duct 2, the second air duct 3 and the steam generating assembly 5 communicated with the containing chamber 1, the first air duct 2 or the second air duct 3 is provided with a heating unit 4, the first air duct 2 is provided with a fan unit 201, the technical scheme adopted in fig. 1 is that the first air duct 2 is provided with the fan unit 201, and the fan unit 201 sends external air into the containing chamber 1 through the first air duct 2, so as to achieve drying of a moist environment and steam inside the dishwasher; fig. 2 adopts a technical scheme that a fan unit 201 and a heating unit 4 are arranged on a first air duct 2, the fan unit 201 sends external air into a containing chamber 1 from the first air duct 2, and the heating unit 4 heats the air flowing through the first air duct 2, so that the air entering the containing chamber 1 is dry hot air, and the drying of the wet environment and steam inside the dishwasher is realized;

fig. 3 adopts a technical scheme that a fan unit 201 is arranged on a first air duct 2, a heating unit 4 is arranged on a second air duct 3, the fan unit 201 adopts a technical scheme of exhausting air from the inside of the accommodating chamber 1, the accommodating chamber 1 is exhausted into negative pressure through the air exhausting of the fan unit 201, external air enters the accommodating chamber 1 through the second air duct 3 under the action of the negative pressure, and in the entering process, the external air is heated by the heating unit 4 arranged on the second air duct 3 to form dry hot air, so that the drying of the wet environment and steam inside the dishwasher is realized; in the selection of the fan unit 201, the self-cross-flow fan is arranged in the first air channel 2, the cross-flow fan can provide a large amount of drying air sources, meanwhile, the noise is low during the operation of the cross-flow fan, the influence on the surrounding environment of the dish-washing machine is reduced, a more comfortable environment is provided for users, and the heating unit 4 is a strip-shaped heating element PTC arranged on the first air channel 2 and is used for heating the air flowing through the first air channel 2, so that the drying of the humid environment and the steam in the dish-washing machine is realized; furthermore, the second air duct 3 is provided with an adjusting component 301 which can be communicated with or disconnected from the second air duct 3, and the second air duct 3 is provided with an adjusting mechanism which can adjust the size of the air outlet, so that the size of the air outlet area can be adjusted, the temperature of the dishwasher during washing can be ensured, the energy can be saved, and the risk that water is discharged outside from the air outlet duct during washing can be reduced; in the drying stage, the opening of the air port can be realized through the mechanism, the air is discharged quickly, and the drying is rapid.

Fig. 4 and 5 are schematic diagrams of structural schemes of the adjusting assembly 301 of the present invention, and it can be seen from the diagrams that the adjusting assembly 301 of the present invention adopts two technical schemes, and can horizontally move and turn and rotate, and the shape of the second air duct 3 can be changed in many ways, although only the rectangular second air duct 3 is shown in fig. 4 and 5, the adjusting assembly can be adjusted according to actual conditions and needs, and the setting of the operation model of the adjusting mechanism and the shape of the second air duct 3 is performed to enhance the adaptability of the adjusting mechanism and the adaptability of the second air duct 3 with different dishwasher models and different shapes, and meanwhile, the requirements of different gear exhaust and different drying conditions are met by adjusting the second air duct 3 through the adjusting mechanism.

The invention realizes that a large amount of air sources are filled into or discharged out of the dish washing machine by arranging the cross-flow fan at the first air duct 2, accelerates the flow of air, realizes that the drying of the dish washing machine can be realized more quickly no matter the cross-flow fan fills air flow into the dish washing machine or extracts air flow from the dish washing machine, and the heating element PTC is arranged in the first air duct 2 or the second air duct 3, and the air passing through the heating element PTC is heated by supplying air into the dish washing machine or extracting air from the interior of the dish washing machine through the cross-flow fan, the heated air is sent into the dish washing machine to carry out thermal circulation, and takes away wet steam, thereby realizing the drying of the internal environment of the dish washing machine, in addition, the cross-flow fan and the PTC heating element are arranged, so that the air entering the dish washing machine is quickly heated, thereby realizing the drying of the interior of the dish washing machine, and simultaneously, as applied to the specific embodiment, as follows.

Example one

As shown in fig. 1 to 3 and 6, the air duct structure of the dishwasher according to the present embodiment includes a first air duct 2 and a second air duct 3 communicated with a receiving chamber 1 of the dishwasher; wherein, a fan unit 201 is arranged in the first air duct 2; the air in the accommodation chamber 1 is under fan unit 201's effect, through first wind channel 2 or 3 discharge dish washers in second wind channel, through set up the cross-flow fan in 2 departments in first wind channel, realized that a large amount of wind sources are irritated or discharge dish washer, the flow of air has been accelerated, no matter the cross-flow fan has been realized to the dish washer in the air current of irritating, or the air current of taking out in the dish washer, the drying that can all realize dish washer more fast.

Example two

As shown in fig. 1 and fig. 2, the present embodiment is further limited to the first embodiment, in the air duct structure of the dishwasher of the present embodiment, the fan unit 201 is configured to blow air to the accommodating chamber 1 through the first air duct 2; the air in the accommodating chamber 1 is discharged out of the dishwasher from the second air duct 3 by the fan unit 201; as can be seen from fig. 1, the present embodiment adopts a technical solution that a fan unit 201 is disposed on a first air duct 2, and the fan unit 201 sends external air into an accommodating chamber 1 through the first air duct 2, so as to dry a wet environment and steam inside the dishwasher.

EXAMPLE III

As shown in fig. 1 and fig. 2, the present embodiment is further limited to the first embodiment or the second embodiment, in the air duct structure of the dishwasher of the present embodiment, the fan unit 201 is a cross flow fan disposed in the first air duct 2, most of the air sources of the present dishwasher use a centrifugal fan and an axial flow fan to provide an air source, such fans have the disadvantages of small air volume, large noise, and the like, and have a serious influence on the surrounding environment during use, and the user experience is also poor, whereas the cross flow fan of the present embodiment is a special fan, generally in a tower shape, and also in a large cylindrical shape. The blown wind is concentrated and columnar, so that a plurality of the blown wind can be combined for use to form relay type airflow transmission, a cross flow fan is also called a cross flow fan, which is firstly proposed by French engineer Morter (Mortier) in 1892, and an impeller is multi-blade type and long cylindrical and is provided with forward multi-wing blades. When the impeller rotates, airflow enters the blade grids from the opening position of the impeller, passes through the inside of the impeller and is discharged into the volute from the blade grids on the other side to form working airflow. The flow of the air flow in the impeller is complicated, the speed field of the air flow is unstable, and a vortex is also present in the impeller, the center of which is located near the volute tongue. The existence of the vortex enables the output end of the impeller to generate circulating flow, and outside the vortex, an airflow streamline in the impeller is arc-shaped. Thus, the flow velocity at each point on the outer circumference of the impeller is non-uniform, with greater velocity nearer the vortex core and less velocity nearer the volute. The air flow velocity and pressure at the fan outlet are not uniform, so the flow coefficient and pressure coefficient of the fan are averages. The position of the vortex has great influence on the performance of the cross flow fan, the center of the vortex is close to the inner circumference of the impeller and is close to the volute tongue, and the performance of the fan is good; the center of the vortex is far away from the vortex tongue, so that the area of the circulating flow is increased, the efficiency of the fan is reduced, and the unstable degree of the flow is increased, therefore, the cross flow fan provided by the embodiment provides a large amount of drying air sources, and meanwhile, the noise is low during the operation of the cross flow fan, the influence on the surrounding environment of the dish washing machine is reduced, and a more comfortable environment is provided for users.

Example four

As shown in fig. 1 and fig. 2, this embodiment is further limited to any one of the first to third embodiments, in the air duct structure of the dishwasher of this embodiment, a heating unit 4 is further disposed in the first air duct 2, a heating surface formed in the first air duct 2 by the heating unit 4 at least covers a flow field blown by the fan unit 201, the heating unit 4 is a PTC heater disposed in the first air duct 2, and the PTC heater is also called a PTC heater, and is composed of a PTC ceramic heating element and an aluminum tube. The PTC heating element has the advantages of small thermal resistance and high heat exchange efficiency, and is an automatic constant-temperature and electricity-saving electric heater. The safety device is characterized in that the surface of an electric heating tube heater does not turn red under any application condition on the safety performance, so that potential safety hazards such as scalding and fire hazards are caused. The PTC heating body product adopts the u-shaped corrugated radiating fins, so that the heat dissipation rate is improved, the advantages of adhesion and mechanical type are integrated, various thermal and electrical phenomena of the PTC heating element during working are fully considered, the bonding force is strong, the heat conduction and the heat dissipation performance are excellent, the efficiency is high, and the PTC heating body product is safe and reliable. The PTC heater has the advantages of small thermal resistance and high heat exchange efficiency, and is an automatic constant-temperature and electricity-saving electric heater. The PTC heater has the prominent characteristic of safety performance, namely, when the fan stops due to failure, the PTC heater can automatically and rapidly reduce the power because the PTC heater cannot fully dissipate heat, and the surface temperature of the heater is maintained at about the Curie temperature (generally about 250 ℃), so that the surface of the heater such as an electric heating tube heater cannot be red. Therefore, the present embodiment provides the strip-shaped heating element PTC on the first air duct 2, so as to heat the air flowing through the first air duct 2, thereby achieving the rapid drying of the internal environment of the washing machine.

EXAMPLE five

As shown in fig. 1 and fig. 2, in the present embodiment, which is further defined by any one of the first to fourth embodiments, in the air duct structure of the dishwasher of the present embodiment, the heating unit 4 is disposed in an area formed by an air inlet direction of the fan unit 201 and an inside of the first air duct 2, air generated by the fan unit 201 flows through the heating unit 4 from the first air duct 2 and is heated to form dry hot air, and then enters the accommodating chamber 1, and the dry hot air enters the accommodating chamber 1, and after drying of the accommodating chamber 1 is achieved, the dry hot air is discharged from the second air duct 3 out of the dishwasher.

EXAMPLE six

As shown in fig. 1 and fig. 3, the present embodiment is further limited to the first embodiment, and the fan unit 201 of the air channel structure of the dishwasher is configured to draw air from the accommodating chamber 1 through the first air channel 2; the air in the accommodating chamber 1 is discharged out of the dishwasher from the first air duct 2 under the action of the fan unit 201, the fan unit 201 is arranged on the first air duct 2, the heating unit 4 is arranged on the second air duct 3, the fan unit 201 adopts the technical scheme of extracting air from the accommodating chamber 1, the accommodating chamber 1 is extracted into negative pressure through the air extraction of the fan unit 201, the outside air enters the accommodating chamber 1 through the second air duct 3 under the action of the negative pressure, and is heated by the heating unit 4 arranged on the second air duct 3 in the entering process to form dry hot air, so that the drying of the interior humid environment and steam of the dishwasher is realized, as can be seen from fig. 3, the technical scheme adopted by the embodiment is that the fan unit 201 is arranged on the first air duct 2, the heating unit 4 is arranged on the second air duct 3, and the fan unit 201 adopts the technical scheme of extracting air from the accommodating chamber 1, through fan unit 201's convulsions, will hold cavity 1 and take out into the negative pressure, outside air gets into through second wind channel 3 and holds cavity 1 under the effect of negative pressure in, and the in-process of entering is set up in the heating unit 4 heating of second wind channel 3, forms dry hot-blast, realizes the drying to the inside humid environment of dish washer and steam.

EXAMPLE seven

As shown in fig. 1 and fig. 3, the present embodiment is further limited to the first embodiment or the sixth embodiment, in the air duct structure of the dishwasher of the present embodiment, the fan unit 201 is a cross-flow fan disposed in the first air duct 2, most of the air sources of the present dishwasher use a centrifugal fan and an axial-flow fan to provide an air source, such fans have the disadvantages of small air volume, large noise, and the like, and have a serious influence on the surrounding environment during use, and the user experience is also poor, whereas the cross-flow fan of the present embodiment is a special fan, generally in a tower shape, and also in a large cylindrical shape. The blown wind is concentrated and columnar, so that a plurality of the blown wind can be combined for use to form relay type airflow transmission, a cross flow fan is also called a cross flow fan, which is firstly proposed by French engineer Morter (Mortier) in 1892, and an impeller is multi-blade type and long cylindrical and is provided with forward multi-wing blades. When the impeller rotates, airflow enters the blade grids from the opening position of the impeller, passes through the inside of the impeller and is discharged into the volute from the blade grids on the other side to form working airflow. The flow of the air flow in the impeller is complicated, the speed field of the air flow is unstable, and a vortex is also present in the impeller, the center of which is located near the volute tongue. The existence of the vortex enables the output end of the impeller to generate circulating flow, and outside the vortex, an airflow streamline in the impeller is arc-shaped. Thus, the flow velocity at each point on the outer circumference of the impeller is non-uniform, with greater velocity nearer the vortex core and less velocity nearer the volute. The air flow velocity and pressure at the fan outlet are not uniform, so the flow coefficient and pressure coefficient of the fan are averages. The position of the vortex has great influence on the performance of the cross flow fan, the center of the vortex is close to the inner circumference of the impeller and is close to the volute tongue, and the performance of the fan is good; the center of the vortex is far away from the vortex tongue, so that the area of the circulating flow is increased, the efficiency of the fan is reduced, and the unstable degree of the flow is increased, therefore, the cross flow fan provided by the embodiment provides a large amount of drying air sources, and meanwhile, the noise is low during the operation of the cross flow fan, the influence on the surrounding environment of the dish washing machine is reduced, and a more comfortable environment is provided for users.

Example eight

As shown in fig. 1 and fig. 3, this embodiment is further limited to any one of the first embodiment, the sixth embodiment or the seventh embodiment, in the air duct structure of the dishwasher of this embodiment, a heating unit 4 is further disposed in the second air duct 3, a heating surface formed by the heating unit 4 in the second air duct 3 at least covers a flow field of the cross section of the second air duct 3, the heating unit 4 is a PTC heater disposed in the second air duct 3, and the PTC heater is also called a PTC heater and is composed of a PTC ceramic heating element and an aluminum tube. The PTC heating element has the advantages of small thermal resistance and high heat exchange efficiency, and is an automatic constant-temperature and electricity-saving electric heater. The safety device is characterized in that the surface of an electric heating tube heater does not turn red under any application condition on the safety performance, so that potential safety hazards such as scalding and fire hazards are caused. The PTC heating body product adopts the u-shaped corrugated radiating fins, so that the heat dissipation rate is improved, the advantages of adhesion and mechanical type are integrated, various thermal and electrical phenomena of the PTC heating element during working are fully considered, the bonding force is strong, the heat conduction and the heat dissipation performance are excellent, the efficiency is high, and the PTC heating body product is safe and reliable. The PTC heater has the advantages of small thermal resistance and high heat exchange efficiency, and is an automatic constant-temperature and electricity-saving electric heater. The PTC heater has the prominent characteristic of safety performance, namely, when the fan stops due to failure, the PTC heater can automatically and rapidly reduce the power because the PTC heater cannot fully dissipate heat, and the surface temperature of the heater is maintained at about the Curie temperature (generally about 250 ℃), so that the surface of the heater such as an electric heating tube heater cannot be red. Therefore, the present embodiment provides the strip-shaped heating element PTC on the first air duct 2, so as to heat the air flowing through the first air duct 2, thereby achieving the rapid drying of the internal environment of the washing machine.

Example nine

As shown in fig. 1 and fig. 3, in this embodiment, the heating unit 4 is disposed in an area formed in an air inlet direction of the second air duct 3, the air in the accommodating chamber 1 generates a tendency of being discharged from the accommodating chamber 1 along the first air duct 2 out of the dishwasher under the action of the fan unit 201, the second air duct 3 heats the air to form dry hot air by the heating unit 4 disposed in the second air duct 3 under the action of negative pressure formed in the accommodating chamber 1, and then the dry hot air enters the accommodating chamber 1 from the second air duct 3, and the dry hot air is dried in the accommodating chamber 1 and then is discharged from the first air duct 2 out of the dishwasher.

Example ten

The dishwasher of the present embodiment includes the air duct structure of the dishwasher of any one of the first to ninth embodiments.

EXAMPLE eleven

This embodiment is further defined by the tenth embodiment, wherein the dishwasher further comprises a tub configured to receive the articles to be washed; the space of the water tank for containing the articles to be washed forms a containing chamber 1; when the dishwasher works, the adjusting component 301 is in a closed state; when the dishwasher is dry, the regulating assembly 301 is in an open state; further, the adjustment assembly 301 is automatically adjusted from the closed state to the open state after the dishwasher enters the dry state.

Example twelve

As shown in fig. 4 to 5, this embodiment is further defined by any one of the first to eleventh embodiments, in this embodiment, an adjusting assembly 301 is disposed in the second air duct 3, and the adjusting assembly 301 includes a first adjusting unit 302 capable of connecting or disconnecting the second air duct 3 with or from the accommodating chamber 1; the second adjusting unit 303 is connected with the first adjusting unit 302 and provides power for the movement of the first adjusting unit 302, the area of an air outlet of the existing dish washer is not adjustable, so that a great amount of water vapor is discharged from the air outlet in the washing process of the dish washer, a great amount of energy is taken away, and energy loss is caused; in the drying stage, the opening of the air port can be realized through the mechanism, the air is discharged quickly, and the drying is rapid.

EXAMPLE thirteen

As shown in fig. 4 to 5, the present embodiment is a further limitation of the twelfth embodiment, in the present embodiment, a slide way is disposed in the second air duct 3, the first adjusting unit 302 is disposed in the slide way, and moves linearly under the action of the second adjusting unit 303, so as to achieve connection or disconnection between the second air duct 3 and the accommodating chamber 1, an area of the first adjusting unit 302 shielding the second air duct 3 is S1, an area of the second air duct 3 is S2, and a ratio of S1 to S2 is 0< S1/S2 ≦ 1.

Example fourteen

As shown in fig. 4 to fig. 5, this embodiment is a further limitation of the twelfth embodiment, in this embodiment, the first adjusting unit 302 and the second adjusting unit 303 are connected by a rotating shaft 304; the first adjusting unit 302 rotates in the second air duct 3 under the action of the second adjusting unit 303, so as to connect or disconnect the second air duct 3 with or from the accommodating chamber 1; the rotation shaft 304 is provided at a position near one end surface of the first adjustment unit 302 or at a rotation center; the area of the first adjusting unit 302 shielding the second air duct 3 is S1, the area of the second air duct 3 is S2, and the ratio of S1 to S2 is 0< S1/S2 ≦ 1.

Example fifteen

As shown in fig. 4 to 5, in this embodiment, which is a further limitation of any one of the twelfth embodiment to the fourteenth embodiment, in the change process that the adjusting assembly 301 of this embodiment connects the second air duct 3 and the accommodating chamber 1 from disconnection to connection or from connection to disconnection, the air discharge flow area of the second air duct 3 changes linearly; further, the cross section of the flow field of the second air duct 3 is a closed channel with a polygonal shape, such as a rectangular channel and a square channel; the operation model of the adjusting mechanism and the shape of the second air duct 3 are set, the adaptability of the adjusting mechanism is enhanced, the adaptability of the second air ducts 3 with different dish washer models and different shapes is enhanced, and meanwhile, the requirements of air exhaust and different drying conditions of different gears are met by adjusting the second air duct 3 through the adjusting mechanism.

Example sixteen

As shown in fig. 4 to 5, in this embodiment, which is a further limitation of any one of the twelfth embodiment to the fourteenth embodiment, in the change process that the adjusting assembly 301 of this embodiment connects the second air duct 3 and the accommodating chamber 1 from disconnection to connection or from connection to disconnection, the air discharge flow field of the second air duct 3 changes in a non-linear manner; the cross section of the flow field of the second air duct 3 is a closed channel with at least one arc-shaped side, such as a circular channel, an elliptical channel and a perfect circular channel; the operation model of the adjusting mechanism and the shape of the second air duct 3 are set, the adaptability of the adjusting mechanism is enhanced, the adaptability of the second air ducts 3 with different dish washer models and different shapes is enhanced, and meanwhile, the requirements of air exhaust and different drying conditions of different gears are met by adjusting the second air duct 3 through the adjusting mechanism.

Example seventeen

As shown in fig. 6, the present embodiment is further limited to any one of the first to sixteenth embodiments, in which the steam generating assembly 5 is communicated with the accommodating chamber 1, generates steam by using water in the accommodating chamber 1, and conveys the steam back to the accommodating chamber 1, thereby realizing steam washing of articles to be washed.

EXAMPLE eighteen

As shown in fig. 6, the present embodiment is a further limitation of the twelfth embodiment, and the steam generating assembly 5 of the present embodiment includes a first connecting pipe 501, a second connecting pipe 502, a third connecting pipe 503, a power unit 504, and a heating pipe 505; the first connecting pipe 501 and the third connecting pipe 503 are communicated with the accommodating chamber 1 and are respectively communicated with the power unit 504 and the heating pipe 505; second connection pipe 502 communicates power unit 504 and heating pipe 505. The water in the accommodating chamber 1 enters the power unit 504 after passing through the first connecting pipe 501 under the action of the power unit 504; after being pressurized in the power unit 504, water enters the heating pipe 505 through the second connecting pipe 502, and is heated and boiled to high-temperature water vapor under the action of the heating pipe 505; high-temperature steam enters the accommodating chamber 1 through the third connecting pipe 503 to wash articles to be washed in the accommodating chamber 1, the steam generation assembly 5 communicated with the accommodating chamber 1 is arranged, steam generation by using water in the accommodating chamber 1 is realized, the problem of independent water diversion is avoided, furthermore, an adjusting mechanism capable of adjusting the size of an air outlet is arranged in the second air duct 3, the size of the air outlet is matched with the steam washing of the dish washing machine, the quick temperature rise in the dish washing machine is realized, the effect of higher temperature is quickly achieved, the working time is shortened, the dish washing machine is protected, the effects of sterilization and residue softening are quickly realized, and subsequent washing residues are paved.

In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.

All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. An air duct structure of a dish washer, which is characterized in that: comprises that

A first air duct (2) and a second air duct (3) communicating with the housing chamber (1) of the dishwasher;

wherein, a fan unit (201) is arranged in the first air channel (2);

the air in the accommodating chamber (1) is discharged out of the dishwasher through the first air duct (2) or the second air duct (3) under the action of the fan unit (201).

2. The air duct structure of dishwasher according to claim 1, wherein: the above-mentioned

The fan unit (201) is configured to blow air to the accommodating chamber (1) through the first air duct (2);

the air in the accommodating chamber (1) is discharged out of the dishwasher from the second air duct (3) under the action of the fan unit (201);

preferably, the fan unit (201) is a cross-flow fan disposed in the first air duct (2).

3. The air duct structure of a dishwasher according to claim 2, wherein: the above-mentioned

A heating unit (4) is also arranged in the first air duct (2);

preferably, the heating surface formed by the heating unit (4) in the first air duct (2) at least covers the flow field supplied by the fan unit (201).

4. The air duct structure of dishwasher according to claim 3, wherein: the heating unit (4) is a PTC heater arranged in the first air duct (2).

5. The air duct structure of a dishwasher according to claim 3 or 4, wherein: the above-mentioned

The heating unit (4) is arranged in an area formed by the air inlet direction of the fan unit (201) and the interior of the first air channel (2);

preferably, the air generated by the fan unit (201) flows through the heating unit (4) from the first air duct (2) to be heated to form dry hot air, and then enters the accommodating chamber (1);

the dried hot air is in the accommodating chamber (1), and is discharged out of the dish-washing machine from the second air duct (3) after the accommodating chamber (1) is dried.

6. The air duct structure of dishwasher according to claim 1, wherein: the above-mentioned

The fan unit (201) is configured to draw air from the inside of the housing chamber (1) through the first air duct (2);

the air in the accommodating chamber (1) is discharged out of the dishwasher from the first air duct (2) under the action of the fan unit (201);

preferably, the fan unit (201) is a cross-flow fan disposed in the first air duct (2).

7. The air duct structure of dishwasher according to claim 6, wherein: the above-mentioned

A heating unit (4) is also arranged in the second air duct (3);

preferably, the heating surface formed by the heating unit (4) in the second air duct (3) at least covers the proceeding flow area of the cross section of the second air duct (3).

8. The air duct structure of a dishwasher according to claim 7, wherein: the heating unit (4) is a PTC heater arranged in the second air duct (3).

9. The air duct structure of a dishwasher according to claim 7 or 8, wherein: the above-mentioned

The heating unit (4) is arranged in an area formed in the air inlet direction of the second air duct (3);

preferably, the gas in the containing chamber (1) is under the action of the fan unit (201) to generate the tendency of discharging the dishwasher from the containing chamber (1) along the first air duct (2);

more preferably, the second air duct (3) enables the air to enter the accommodating chamber (1) from the second air duct (3) after the air is heated by a heating unit (4) arranged on the second air duct (3) to form dry hot air under the action of negative pressure formed in the accommodating chamber (1);

the dried hot air is discharged out of the dish washing machine from the first air duct (2) after the drying of the accommodating chamber (1) is realized in the accommodating chamber (1).

10. A dishwasher, characterized by: comprises that

A duct structure of a dishwasher according to any one of the above claims 1 to 9;

preferably, also comprises

A sink configured to receive items to be washed;

the space of the water tank for containing the articles to be washed forms a containing chamber (1).

Images