CN113425214A

CN113425214A - Hot air ventilation assembly, dish washing machine, control method and device of dish washing machine and storage medium

Info

Publication number: CN113425214A
Application number: CN202110839765.4A
Authority: CN
Inventors: 唐超; 梁腾斌; 高岩; 巨姗; 贝梦超; 霍剑文
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2021-09-24

Abstract

The invention discloses a hot air ventilation assembly, a dish washing machine, a control method and a control device of the dish washing machine and a storage medium, wherein the hot air ventilation assembly comprises a first pipeline and a second pipeline, a heating piece is arranged on the first pipeline to heat air flowing through the first pipeline, and air inlet fans are arranged at air inlet ends of the first pipeline and the second pipeline; the air outlet ends of the first pipeline and the second pipeline are communicated with an air mixing pipe, a temperature sensor is arranged on the air mixing pipe, switch valves are respectively arranged on the first pipeline and the second pipeline, and the air outlet temperature of the air mixing pipe is adjusted by adjusting the air quantity of hot air and natural air entering the air mixing pipe. The invention provides a hot air ventilation assembly, a dish washing machine, a control method and a control device of the dish washing machine and a storage medium of the dish washing machine, which realize hot air outlet at different temperatures and solve the problem that the dish washing machine adopting the existing hot air drying mode is burnt in a cavity due to continuous high-temperature drying because the temperature of hot air cannot be adjusted through PTC heating.

Description

Hot air ventilation assembly, dish washing machine, control method and device of dish washing machine and storage medium

Technical Field

The invention belongs to the technical field of dish washing machines, and particularly relates to a hot air ventilation assembly, a dish washing machine, a control method and device of the dish washing machine and a storage medium.

Background

As a household appliance product which adapts to the trend of the times at present, the dishwasher can meet the tableware washing requirements of users in daily life, thereby greatly improving the life quality of people.

At present, most dish washers set up the stoving procedure after the rinsing, dry the tableware, effectively avoid breeding the bacterium because of humidity is too big in the dish washer. The drying mode of dish washer is various, and its the first is for adopting the waste heat of rinsing process to dish washer stoving, and its second is for adopting single wind channel and high-power heating device to cooperate in order to produce hot-blast heating to dish washer inner chamber to the realization is to the stoving of tableware.

However, the first drying method has poor drying effect and low efficiency; the second drying mode is high in drying energy consumption and low in efficiency, scorched smell is easy to appear when the temperature is too high, and the user experience is poor.

Disclosure of Invention

In order to solve the technical problems mentioned in the background art, the invention provides a hot air ventilation assembly, a dish washing machine, a control method and device of the dish washing machine and a storage medium, and aims to solve the technical problems of low drying mode efficiency and poor user experience of the existing dish washing machine.

In order to achieve the purpose, the invention provides a hot air ventilation assembly, a dish washing machine, a control method and a control device thereof, and a storage medium, wherein the specific technical scheme is as follows:

a hot air ventilation assembly comprises a first pipeline and a second pipeline, wherein a heating piece is arranged on the first pipeline to heat air flowing through the first pipeline, and air inlet fans are arranged at air inlet ends of the first pipeline and the second pipeline; the air outlet ends of the first pipeline and the second pipeline are communicated with an air mixing pipe, a temperature sensor is arranged on the air mixing pipe, switch valves are respectively arranged on the first pipeline and the second pipeline, and the air outlet temperature of the air mixing pipe is adjusted by adjusting the air quantity of hot air and natural air entering the air mixing pipe.

Furthermore, the air inlet ends of the first pipeline and the second pipeline are communicated, and the air inlet fan is arranged at the communication position of the first pipeline and the second pipeline.

Furthermore, the air inlet fan comprises a first air inlet fan and a second air inlet fan, the first air inlet fan is arranged at the air inlet end of the first pipeline, and the second air inlet fan is arranged at the air inlet end of the second pipeline.

Furthermore, the switch valve, the heating element, the air inlet fan and the temperature sensor are all electrically connected with the controller, and the controller controls the opening angle of the switch valve and the working state of the air inlet fan according to the real-time temperature output by the temperature sensor.

A control method of a hot air ventilation assembly comprises the following steps:

acquiring a target air outlet temperature and a real-time air outlet temperature of the hot air ventilation assembly;

and adjusting the air quantity of the hot air and the natural air entering the air mixing pipe so as to adjust the real-time air outlet temperature of the air mixing pipe to the target air outlet temperature.

Further, the amount of wind that enters into the hot-blast and natural wind of tuber pipe is being adjusted to in adjusting the real-time air-out temperature of tuber pipe to the target air-out temperature, specifically include:

when the real-time air outlet temperature of the air outlet pipe is higher than the target air outlet temperature, reducing the air volume of the hot air output by the first pipeline and/or improving the air volume of the natural air output by the second pipeline;

and when the real-time air outlet temperature of the air outlet pipe is lower than the target air outlet temperature, increasing the air volume of the hot air output by the first pipeline and/or reducing the air volume of the natural air output by the second pipeline.

Furthermore, the adjustment of the air quantity of the hot air and the natural air entering the air mixing pipe is realized by adjusting the opening angle of a switch valve and/or adjusting the rotating speed of an air inlet fan.

A dish washing machine comprises a cavity and the hot air ventilation assembly, wherein multiple groups of air outlets are formed in the cavity, each air outlet comprises a natural air outlet and a hot air outlet, and the hot air outlets are connected with the hot air ventilation assembly.

Furthermore, the natural wind outlet is arranged on the top wall of the cavity to convey natural wind into the cavity from top to bottom, and the hot wind outlet is arranged on the side wall of the cavity.

Further, the bottom surface of the cavity is provided with a residual water tank, the side wall of the residual water tank is provided with a residual water drying air outlet, and the residual water drying air outlet is connected with a hot air ventilation assembly.

A drying control method of a dish washer comprises a hot air drying stage, wherein the hot air drying stage mainly comprises the following steps:

controlling the natural wind outlet to be closed and controlling the hot wind outlet to be opened;

and controlling the real-time temperature of the hot air output by the hot air outlet to gradually reduce from the first preset temperature to a second preset temperature, and maintaining the second preset temperature to output a second preset duration.

Further, in the hot air drying stage, the real-time temperature of the hot air output by the hot air outlet is gradually reduced from the first preset temperature to the second preset temperature, and the method is realized through at least one of the following modes or a combination mode:

gradually reducing the opening angle of the first switch valve, and simultaneously gradually increasing the opening angle of the second switch valve;

gradually reducing the rotating speed of the first air inlet fan, and keeping the rotating speed of the second air inlet fan unchanged;

the rotating speed of the first air inlet fan is unchanged, and the rotating speed of the second air inlet fan is gradually increased;

the rotating speed of the first air inlet fan is gradually increased, and meanwhile, the rotating speed of the second air inlet fan is gradually increased.

Further, before the hot air drying stage, the method further comprises a preliminary drying stage, wherein the natural air outlet is controlled to be closed, the hot air outlet is controlled to be opened, and the duration of continuously supplying air to the cavity is first preset duration at a first preset temperature of hot air output by the hot air outlet.

Further, before preliminary drying stage, still include preliminary dehumidification stage, control hot-blast air outlet is closed, and control natural wind air outlet opens, and natural wind air outlet lets in the natural wind to the cavity, and natural wind lets in when long reaching the third and predetermineeing when long back, control natural wind air outlet closed.

Further, after the hot air drying stage, the method also comprises a residual water drying stage: and controlling the natural air outlet and the hot air outlet to be closed, controlling the residual water drying air outlet to be opened, outputting hot air at a third preset temperature to the residual water tank through the residual water drying air outlet, and continuously supplying air to the residual water tank for a third preset time so as to remove the washing water in the residual water tank.

A drying control device of a dishwasher, comprising:

the temperature detection module is used for acquiring the real-time temperature of the hot air outlet;

the drying mode determining module is used for acquiring the drying mode of the dish washing machine;

and the control module is used for controlling the natural air outlet to be closed and controlling the hot air outlet to be opened when the drying mode determining module obtains that the dish washing machine is in a hot air drying stage, and the real-time temperature of the hot air output by the hot air outlet is gradually reduced from the first preset temperature to the second preset temperature and the second preset temperature is maintained and the second preset time is output.

A readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the drying control method of the dishwasher described above.

The hot air ventilation assembly, the dish washing machine and the control method, the device and the storage medium thereof have the following advantages that: according to the hot air ventilation assembly, the dish washing machine and the control method, device and storage medium of the dish washing machine, the natural air outlet and the hot air outlet are respectively arranged on the top wall and the side wall of the cavity, and due to the fact that the density of hot air is low, the hot air is diffused upwards after entering the cavity, and the action volume of the hot air is enlarged by arranging the hot air outlet at the position, close to the bottom, of the side wall; and set up the natural wind air outlet at the cavity diapire, the natural wind is used for preliminary dehumidification, blows off the washing water on the tableware to the cavity bottom from top to bottom, and the effect of preliminary dehumidification is more excellent.

Drawings

FIG. 1 is a schematic view of a first embodiment of a hot air ventilation assembly of the present invention;

FIG. 2 is a schematic structural view of a second embodiment of the hot air ventilation assembly of the present invention;

fig. 3 is a control flowchart of a control method of the hot wind ventilation assembly of the present invention;

FIG. 4 is a schematic view of the structure of the dishwasher of the present invention;

FIG. 5 is a flow chart of a drying method of the dishwasher of the present invention;

FIG. 6 is a control flowchart of the dishwasher of the present invention in a direct drying mode;

FIG. 7 is a control flowchart of the dishwasher of the present invention in an additional drying mode;

fig. 8 is a schematic structural view of a drying control device of a dishwasher according to the present invention.

The notation in the figure is:

1. a cavity; 11. a natural wind outlet; 12. a hot air outlet; 13. a surplus water tank; 14. residual water dries the air outlet; 2. a machine door; 21. an air outlet; 3. a hot air ventilation assembly; 31. a first conduit; 311. a heat generating member; 312. a first switching valve; 32. a second conduit; 321. a second switching valve; 33. a mixed air duct; 34. an air intake fan; 341. a first air intake fan; 342. a second air intake fan; 35. a temperature sensor; 4. a temperature detection module; 5. a drying mode determination module; 6. and a control module.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

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; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The drying method of most dish washers adopts single wind channel and high-power heating device to cooperate in order to produce hot-blast heating to dish washer internal cavity 1 usually to realize the stoving to the tableware, but continuously supplies hot-blast in to dish washer cavity 1 through single wind channel in order to guarantee that the temperature in dish washer cavity 1 flows and the air flows, and this kind of drying method is difficult to control the stoving parameter according to the initial dry and wet condition of tableware, leads to that the stoving energy consumption is big, inefficiency.

In view of this, the invention designs a hot air inlet component 3 capable of adjusting the outlet air temperature. As shown in fig. 1, a hot air intake assembly 3 includes a first pipe 31 and a second pipe 32, a heating element 311 is disposed on the first pipe 31 to heat air flowing through the first pipe 31, and an air intake blower 34 is disposed at air intake ends of the first pipe 31 and the second pipe 32; the air outlet ends of the first pipeline 31 and the second pipeline 32 are communicated with an air mixing pipe 34, the air mixing pipe 34 is provided with a temperature sensor 35, the first pipeline 31 and the second pipeline 32 are respectively provided with a first switch valve 312 and a second switch valve 321, and the air outlet temperature of the air mixing pipe 34 is adjusted by adjusting the air quantity of hot air and natural air entering the air mixing pipe 34.

In one embodiment, as shown in fig. 1, the air inlet ends of the first and

second pipes

31 and 32 are communicated to form a hot air inlet, an air inlet fan 34 is disposed at the hot air inlet, and the first and

second pipes

31 and 32 share one air inlet fan 34. The first switch valve 312, the second switch valve 321, the heating element 311 and the air intake fan 34 are electrically connected to the controller respectively. When the dishwasher is in the direct drying mode, the controller respectively opens the first switch valve 312, the second switch valve 321, the heating element 311 and the air intake fan 34 to deliver hot air into the chamber 1. Meanwhile, the controller can adjust the temperature of the hot air outlet by controlling the opening angles of the first switch valve 312 and the second switch valve 321 and the rotating speed of the air inlet fan 34.

The temperature sensor 35 is electrically connected to the controller, and obtains the real-time temperature of the hot air through the temperature sensor 35, so as to control the opening angles of the first switch valve 312 and the second switch valve 321 and the working state of the air intake fan 34 according to the relation between the real-time temperature and the temperature threshold.

In another embodiment, as shown in fig. 2, the hot air intake assembly 3 includes a first pipe 31 and a second pipe 32, the first pipe 31 is provided with a heating element 311, an air inlet end of the first pipe 31 is provided with a first air intake blower 341, and an air inlet end of the second pipe 32 is provided with a second air intake blower 342, so as to form two independent hot air inlets; the air outlet ends of the first pipeline 31 and the second pipeline 32 are communicated and connected with the hot air outlet 12, the first pipeline 31 and the second pipeline 32 are respectively provided with a first switch valve 312 and a second switch valve 321 to control the opening and closing of the corresponding pipelines, and the first switch valve 312, the second switch valve 321, the first air intake fan 341, the second air intake fan 342 and the heating element 311 are respectively electrically connected with the controller. When the dishwasher is in the direct drying mode, the controller respectively opens the first switch valve 312, the second switch valve 321, the first air intake fan 341, the second air intake fan 342 and the heating element 311 to deliver hot air into the cavity 1. Meanwhile, the controller can adjust the temperature of the hot air outlet by controlling the opening angles of the first switch valve 312 and the second switch valve 321 and the rotating speed of the air inlet fan 34.

Be connected with the air mixing pipe 33 between the end of giving vent to anger after first pipeline 31 and second pipeline 32 communicate and hot-blast air outlet 12, be equipped with temperature sensor 35 on the air mixing pipe 33, temperature sensor 35 is connected with the controller electricity, obtain hot-blast real-time temperature through temperature sensor 35, according to the relation of real-time temperature and temperature threshold value, with the opening angle of control first switch valve 312 and second switch valve 321 and the operating parameter of first air inlet fan 341 and second air inlet fan 342, thereby adjust hot-blast temperature.

The hot-blast air inlet subassembly 3 that this embodiment provided, including giving vent to anger first pipeline 31 and the second pipeline 32 of end intercommunication, first pipeline 31 produces the higher wind of temperature through heating element 311, the natural wind of normal atmospheric temperature is carried to second pipeline 32, carry outside air to first pipeline 31 and second pipeline 32 respectively through air inlet fan 34, the air that gets into first pipeline 31 forms hot-blastly after heating element 311 heats, and enter into and mix the natural wind of carrying with second pipeline 32 in the tuber pipe 33, thereby realize the hot-blastly of different temperatures, pass through the unable hot-blast temperature of regulation of PTC heating in order to solve the dish washer of current hot-blast drying mode, and lead to lasting high temperature drying and cause the problem that burnt flavor appears in the cavity 1.

As shown in fig. 3, the present invention also provides a method for controlling a hot air ventilation assembly, comprising the steps of:

s10, acquiring a target air outlet temperature and a real-time air outlet temperature of the hot air ventilation assembly 3;

and S20, adjusting the air volume of the hot air and the natural air entering the air mixing pipe 33 so as to adjust the real-time air outlet temperature of the air mixing pipe 33 to the target air outlet temperature.

Further, the air volume of the hot air and the natural air entering the air mixing pipe 33 is adjusted to adjust the real-time air outlet temperature of the air mixing pipe 33 to the target air outlet temperature in step S20, which specifically includes:

when the real-time outlet air temperature of the outlet air pipe 33 is higher than the target outlet air temperature, the air volume of the hot air output by the first pipeline 31 is reduced, and/or the air volume of the natural air output by the second pipeline 32 is increased;

when the real-time outlet air temperature of the outlet air pipe 33 is lower than the target outlet air temperature, the air volume of the hot air output by the first pipeline 31 is increased, and/or the air volume of the natural air output by the second pipeline 32 is reduced.

Specifically, in the step of adjusting the air volume of the hot air and the natural air entering the air mixing pipe 33, the adjustment is realized by adjusting the opening angle of the switch valve and/or adjusting the rotation speed of the air intake fan 34. If the opening angle of the switch valve is increased and the rotating speed of the air inlet fan 34 is increased, the air outlet quantity in the corresponding pipeline can be increased, and conversely, if the opening angle of the switch valve is decreased and the rotating speed of the air inlet fan 34 is decreased, the air quantity in the corresponding pipeline is decreased.

According to the control method of the hot air ventilation assembly 3 provided by the embodiment, the opening angle of the switch valve and the rotating speed of the air inlet fan 34 are controlled to adjust the air quantity of the hot air and the natural air entering the air mixing pipe 33, so that the air outlet temperature is adjusted, and the adjustment mode is simple and convenient.

In view of the above, the invention determines the drying parameters of the dish washer through the drying mode of the dish washer, and realizes the low-energy-consumption and high-efficiency drying of the tableware. As shown in fig. 4, in the technical solution of this embodiment, the dish washer includes a cavity 1, a door 2 covering an opening of the cavity 1, and the hot air ventilation assembly 3, wherein the cavity 1 is provided with a plurality of air outlets, the air outlets include a natural air outlet 11 and a hot air outlet 12, the hot air outlet 12 is connected to a gas mixing pipe 33, and the door 2 is provided with an air outlet 21.

Preferably, the natural wind outlet 11 is arranged on the top wall of the cavity 1 to convey natural wind to preliminarily dehumidify the tableware in the cavity 1, and the hot wind outlet 12 is arranged on the side wall of the cavity 1 to convey hot wind to dry the tableware in the cavity 1.

According to the dish washing machine provided by the embodiment, the natural air outlet 11 and the hot air outlet 12 are respectively arranged on the top wall and the side wall of the cavity 1, because the density of hot air is low, the hot air is diffused upwards after entering the cavity 1, and the action volume of the hot air is enlarged by arranging the hot air outlet 12 at the position, close to the bottom, of the side wall; and set up natural wind air outlet 11 at 1 diapire of cavity, the natural wind is used for preliminary dehumidification, blows off the washing water on the tableware to cavity 1 bottom from top to bottom, and the effect of preliminary dehumidification is more excellent.

Specifically, the natural wind outlet 11 is connected with a natural wind inlet channel, an air inlet of the natural wind inlet channel is communicated with the outside, so that the inside and the outside of the cavity 1 are communicated, the natural wind inlet channel is connected with a natural wind inlet fan 34, a control valve is arranged on the natural wind inlet channel, and the natural wind inlet fan 34 and the control valve are respectively and electrically connected with the controller. When the dish washer is in an additional drying mode, the controller opens the control valve and the natural wind inlet fan 34 to convey natural wind into the cavity 1, so that most of washing water on the tableware is blown to the bottom of the cavity 1; the controller can adjust the rotating speed of the natural wind inlet fan 34, thereby adjusting the flow of the gas blown into the cavity 1.

Further, the hot air temperature of hot air outlet 12 output is adjustable, hot air outlet 12 is connected with hot air ventilation subassembly 3, after opening hot air ventilation subassembly 3, carry the hot-blast of different temperatures in to cavity 1, in the hot-blast stoving stage, carry the hot-blast that real-time temperature gradually reduces in to cavity 1, the stoving initial stage, high temperature air can realize disinfecting tableware and cavity 1, the sterilization function, fast drying, after the temperature reduces gradually, make the moisture on the tableware can fully dry, can not appear burnt flavor again because hot-blast high temperature, promote user experience in the messenger cavity 1.

After the washing water is blown down to the residual water tank 13 at the bottom of the cavity 1, the washing water in the residual water tank 13 needs to be dried to prevent bacteria from breeding. As shown in fig. 1, a residual water tank 13 is arranged on the bottom surface of the cavity 1, a residual water drying air outlet 14 is arranged on the side wall of the residual water tank 13, the residual water drying air outlet 14 is connected with a hot air ventilation assembly 3, and after the dish washer finishes hot air drying, the residual water drying air outlet 14 is opened to dry the residual water tank 13.

The dish washer that this embodiment provided opens surplus water stoving air outlet 14 after hot-blast stoving is accomplished, dries surplus water tank 13 to accomplish the whole stoving of cavity 1 and tableware, the stoving effect is better.

In accordance with an embodiment of the present invention, there is provided an embodiment of a drying control method of a dishwasher, it is noted that the steps illustrated in the flowchart of the drawings may be performed in a computer system such as a set of computer executable instructions, and that while a logical order is illustrated in the flowchart, in some cases the steps illustrated or described may be performed in an order different than that herein.

The embodiment provides a drying control method of a dishwasher, which can be used in the dishwasher, fig. 5 is a flow chart of the drying control method of the dishwasher according to the embodiment of the invention, as shown in fig. 5, the drying control method includes a hot air drying stage, and the hot air drying stage mainly includes the following steps:

s30, controlling the natural wind outlet 11 to be closed and controlling the hot wind outlet 12 to be opened;

s40, the real-time temperature of the hot air output from the hot air outlet 12 is gradually decreased from the first preset temperature to the second preset temperature, and the second preset temperature is maintained to output the second preset duration.

In this embodiment, in the hot air drying stage, the real-time temperature of the hot air output from the hot air outlet 12 is gradually reduced from the first preset temperature to the second preset temperature, and is realized by at least one of the following manners or combinations:

gradually decreasing the opening angle of the first switching valve 312, and simultaneously gradually increasing the opening angle of the second switching valve 321;

the rotating speed of the first air intake fan 341 is gradually reduced, and the rotating speed of the second air intake fan 342 is unchanged;

the rotating speed of the first air intake fan 341 is unchanged, and the rotating speed of the second air intake fan 342 is gradually increased;

the rotation speed of the first air intake fan 341 is gradually increased, and at the same time, the rotation speed of the second air intake fan 342 is gradually increased.

Further, before the hot air drying stage, a preliminary drying stage is also included, and the duration of continuously supplying air to the cavity 1 at a first preset temperature by the hot air output by the hot air outlet 12 is a first preset duration.

Further, before preliminary drying stage, still include preliminary dehumidification stage, control hot-blast air outlet 12 is closed, and control natural wind air outlet 11 opens, and natural wind air outlet 11 lets in the natural wind to cavity 1 in, and natural wind lets in for a long time and reaches the third and predetermine when back, control natural wind air outlet 11 is closed.

Further, after the hot air drying stage, the method also comprises a residual water drying stage: and controlling the natural air outlet 11 and the hot air outlet 12 to be closed, controlling the residual water drying air outlet 14 to be opened, outputting hot air at a third preset temperature to the residual water tank 13 from the residual water drying air outlet 14, and continuously supplying air to the residual water tank 13 for a third preset time so as to remove the washing water in the residual water tank 13.

Specifically, the door 2 may be provided with a mode selection button or a touch panel to select a drying mode of the dishwasher. After the tableware is manually cleaned, the tableware is placed into the cavity 1, or after the tableware is placed in the cavity 1 for a period of time, a direct drying mode is selected, and the hot air outlet 12 can be opened to directly dry the tableware; after the rinsing of the dish washer is finished, the dish washer directly enters an additional drying mode, firstly the natural air outlet 11 is opened to introduce natural air into the cavity 1, the natural air blows from top to bottom to blow most washing water on the tableware down to the residual water tank 13 at the bottom of the cavity 1, and then the hot air outlet 12 is opened to further dry the tableware, so that the drying efficiency is improved.

In the embodiment of the direct drying mode, as shown in fig. 6, when the drying mode acquired to the dishwasher is the direct drying mode, the natural air outlet 11 is controlled to be closed, and the hot air outlet 12 is controlled to be opened, the direct drying mode includes a preliminary drying stage and a hot air drying stage, wherein,

in the primary drying stage, the real-time temperature of the hot air is a first preset temperature T1, and the air supply duration to the cavity 1 is a first preset duration T1;

in the hot air drying stage, the real-time temperature of the hot air is gradually reduced from the first preset temperature T1 to a second preset temperature T2, and when the real-time temperature of the hot air reaches the second preset temperature T2, the duration of continuously supplying air to the cavity 1 is a second preset duration T2.

Specifically, in the hot air drying stage, the real-time temperature of the hot air is gradually reduced from a first preset temperature T1 to a second preset temperature T2, and the real-time temperature is achieved through at least one of the following modes or a combination of the following modes:

According to the drying control method of the dish washing machine, the working parameters of the hot air ventilation assembly 3 are adjusted to achieve adjustment of gradually reducing the real-time temperature of hot air, so that the problem of burnt smell in the cavity 1 caused by overhigh drying temperature is solved.

In the embodiment of the additional drying mode, as shown in fig. 7, when the drying mode of the dishwasher is the additional drying mode, the additional drying mode is provided with a preliminary dehumidification stage, a preliminary drying stage and a hot air drying stage, wherein in the preliminary dehumidification stage, only the natural air outlet 11 is opened, natural air is introduced into the cavity 1, and after the introduction time of the natural air reaches a third preset time t3, the natural air outlet 11 is closed; the primary drying stage and the hot air drying stage have the same control parameters as those of the primary drying stage and the hot air drying stage in the direct drying mode.

Specifically, in the preliminary dehumidification stage, the air intake fan 34 is started, natural wind blows downwards from the top of the cavity 1, most of washing water on the tableware is blown down to the residual water tank 13 at the bottom of the cavity 1, and after the third preset duration t3 of continuous work, the air intake fan 34 and the natural wind outlet 11 are closed, so that preliminary dehumidification is completed.

After the hot air drying step, the method also comprises a residual water drying step: and opening the residual water drying air outlet 14, and introducing hot air into the residual water tank 13 to remove the washing water in the residual water tank 13.

According to the drying control method of the dish washing machine, different drying schemes are formulated according to different drying modes of the dish washing machine, and most of washing water on tableware is blown off by blowing air downwards through natural wind to preliminarily dehumidify; sterilizing and disinfecting the tableware by high-temperature hot air, drying the tableware and primarily drying; then, the temperature of the hot air is gradually reduced, the hot air drying is realized, and the burnt smell in the cavity 1 is prevented; after the hot air drying is finished, the residual water drying air outlet 14 is opened, the residual water tank 13 is dried, the cavity 1 and the tableware are thoroughly and completely dried, and the drying effect is better.

In addition, the drying effect of the dish washing machine can be judged by detecting the real-time humidity of the outside and the real-time humidity of the air outlet, for example, a humidity sensor is arranged at the air outlet, and when the real-time humidity of the air outlet is less than or equal to the real-time humidity of the external environment, the tableware is completely dried.

In this embodiment, a drying control device of a dishwasher is also provided, which is used to implement the above embodiments and preferred embodiments, and the description of which is already given is omitted. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware or a combination of software and hardware is also conceivable.

As shown in fig. 8, the drying control device of the dishwasher according to the present embodiment, as shown in fig. 7, includes:

the temperature detection module 4 is used for acquiring the real-time temperature of the hot air outlet 12; for a detailed description, reference is made to the corresponding related description of the above method embodiments, which is not repeated herein.

A drying mode determining module 5 for obtaining the drying mode of the dish washer; for a detailed description, reference is made to the corresponding related description of the above method embodiments, which is not repeated herein.

And the control module 6 is configured to control the natural air outlet 11 to be closed and control the hot air outlet 12 to be opened when the drying mode determining module 5 obtains that the dishwasher is in a hot air drying stage, and the real-time temperature of the hot air output by the hot air outlet 12 is gradually reduced from the first preset temperature to the second preset temperature, and the second preset temperature is maintained and the second preset duration is output. For a detailed description, reference is made to the corresponding related description of the above method embodiments, which is not repeated herein.

According to the drying control device of the dish washing machine, different drying schemes are formulated according to different drying modes of the dish washing machine, and most of washing water on tableware is blown off by blowing air downwards through natural wind to preliminarily dehumidify; sterilizing and disinfecting the tableware by high-temperature hot air, drying the tableware and primarily drying; then, the temperature of the hot air is gradually reduced, the hot air drying is realized, and the burnt smell in the cavity 1 is prevented; after the hot air drying is finished, the residual water drying air outlet 14 is opened, the residual water tank 13 is dried, the cavity 1 and the tableware are thoroughly and completely dried, and the drying effect is better.

Furthermore, an embodiment of the present invention also provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps of the method as described above.

In this embodiment, the module/unit integrated with the drying control device of the dishwasher may be stored in a computer readable storage medium if it is implemented in the form of a software functional unit and sold or used as a separate product. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.

The dishwasher provided by the embodiment of the invention comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, and the steps of the drying control method embodiments of the dishwasher are realized when the processor executes the computer program. Or, the processor, when executing the computer program, implements the functions of the modules/units in the drying control device embodiments of the respective dishwashers described above.

Illustratively, the computer program may be partitioned into one or more modules/units that are stored in the memory and executed by the processor to implement the invention. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution of the computer program in the drying control device of the dishwasher.

The device may be a desktop computer, a notebook, a palm top computer, a cloud server, or other computing device. The apparatus may include, but is not limited to, a processor, a memory. It will be appreciated by those skilled in the art that the schematic diagrams are merely examples of the devices and do not constitute a limitation on the devices, and may include more or less components than those shown, or some components in combination, or different components, e.g., the devices may also include input output devices, network access devices, buses, etc.

The Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like that is the control center for the device and that connects the various parts of the overall device using various interfaces and lines.

The memory may be used to store the computer programs and/or modules, and the processor may implement the various functions of the apparatus by running or executing the computer programs and/or modules stored in the memory, as well as by invoking data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.

In the embodiments of the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the described units or division of units is only one type of division of logical functions, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical or other form.

Those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than others, 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.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A hot air ventilation assembly is characterized by comprising a first pipeline and a second pipeline, wherein a heating piece is arranged on the first pipeline to heat air flowing through the first pipeline, and air inlet fans are arranged at air inlet ends of the first pipeline and the second pipeline; the air outlet ends of the first pipeline and the second pipeline are communicated with an air mixing pipe, a temperature sensor is arranged on the air mixing pipe, switch valves are respectively arranged on the first pipeline and the second pipeline, and the air outlet temperature of the air mixing pipe is adjusted by adjusting the air quantity of hot air and natural air entering the air mixing pipe.

2. The hot air ventilation assembly of claim 1, wherein the air inlet ends of the first and second ducts are in communication, and the air inlet fan is disposed at the communication of the first and second ducts.

3. The hot air ventilation assembly of claim 1, wherein the air intake blower comprises a first air intake blower disposed at an air intake end of the first conduit and a second air intake blower disposed at an air intake end of the second conduit.

4. The hot air ventilation assembly according to any one of claims 1 to 3, wherein the switch valve, the heating member, the air intake fan and the temperature sensor are electrically connected to a controller, and the controller controls the opening angle of the switch valve and the working state of the air intake fan according to the real-time temperature output by the temperature sensor.

5. A control method of a hot air ventilation assembly is characterized by comprising the following steps:

acquiring a target air outlet temperature of the hot air ventilation assembly;

6. The method according to claim 5, wherein the adjusting of the air volume of the hot air and the natural air entering the air mixing pipe to adjust the real-time air outlet temperature of the air mixing pipe to the target air outlet temperature specifically comprises:

7. The method as claimed in claim 6, wherein the adjustment of the amount of the hot wind and the natural wind entering the air mixing duct is performed by adjusting the opening angle of a switch valve and/or adjusting the rotation speed of an air intake fan.

8. A dish washing machine, characterized by comprising a cavity and the hot air ventilation assembly as claimed in any one of claims 1 to 4, wherein the cavity is provided with a plurality of groups of air outlets, the air outlets comprise a natural air outlet and a hot air outlet, and the hot air outlet is connected with the hot air ventilation assembly.

9. The dishwasher of claim 8, wherein the natural wind outlet is provided at a top wall of the chamber to supply natural wind into the chamber from top to bottom, and the hot wind outlet is provided at a side wall of the chamber.

10. The dishwasher of claim 8, wherein the bottom of the chamber is provided with a residual water tank, a residual water drying outlet is provided on a side wall of the residual water tank, and the residual water drying outlet is connected with a hot air ventilation assembly.

11. A drying control method of a dish washing machine is characterized in that the method comprises a hot air drying stage, and the hot air drying stage mainly comprises the following steps:

12. The method according to claim 11, wherein in the hot air drying stage, the real-time temperature of the hot air output from the hot air outlet is gradually reduced from a first preset temperature to a second preset temperature, and the real-time temperature is reduced by at least one of the following methods or a combination thereof:

13. The method according to claim 11, further comprising a preliminary drying stage before the hot air drying stage, wherein the natural air outlet is controlled to be closed, the hot air outlet is controlled to be opened, and the duration of the air supply to the cavity at the first preset temperature by the hot air output from the hot air outlet is the first preset duration.

14. The method according to claim 13, further comprising a preliminary dehumidification stage before the preliminary drying stage, wherein the hot air outlet is controlled to be closed, the natural air outlet is controlled to be opened, natural air is introduced into the cavity from the natural air outlet, and the natural air outlet is controlled to be closed after the natural air introduction time reaches a third preset time.

15. The method of claim 11, further comprising a residual water drying stage after the hot air drying stage: and controlling the natural air outlet and the hot air outlet to be closed, controlling the residual water drying air outlet to be opened, outputting hot air at a third preset temperature to the residual water tank through the residual water drying air outlet, and continuously supplying air to the residual water tank for a third preset time so as to remove the washing water in the residual water tank.

16. A drying control device of a dishwasher, comprising:

17. A storage medium having stored thereon a computer program, characterized in that the program, when being executed by a processor, carries out the steps of the drying control method of the dishwasher according to any one of claims 11 to 15.