CN111904352A - Dish washer with multiple washing units and drainage control method - Google Patents

Dish washer with multiple washing units and drainage control method Download PDF

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Publication number
CN111904352A
CN111904352A CN201910385245.3A CN201910385245A CN111904352A CN 111904352 A CN111904352 A CN 111904352A CN 201910385245 A CN201910385245 A CN 201910385245A CN 111904352 A CN111904352 A CN 111904352A
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CN
China
Prior art keywords
washing unit
washing
water
unit
dishwasher
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Pending
Application number
CN201910385245.3A
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Chinese (zh)
Inventor
吴玲
许升
邓金柱
张永奎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Co Ltd
Qingdao Haier Dishwasher Co Ltd
Original Assignee
Qingdao Haier Co Ltd
Qingdao Haier Dishwasher Co Ltd
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Application filed by Qingdao Haier Co Ltd, Qingdao Haier Dishwasher Co Ltd filed Critical Qingdao Haier Co Ltd
Priority to CN201910385245.3A priority Critical patent/CN111904352A/en
Publication of CN111904352A publication Critical patent/CN111904352A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/0018Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0021Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
    • A47L15/0031Water discharge phases
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/0018Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0021Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/0018Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0021Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
    • A47L15/0023Water filling
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/0018Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0021Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
    • A47L15/0026Rinsing phases
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/42Details
    • A47L15/4214Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4223Devices for water discharge, e.g. devices to prevent siphoning, non-return valves
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/42Details
    • A47L15/4246Details of the tub
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/42Details
    • A47L15/44Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/42Details
    • A47L15/48Drying arrangements

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  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Washing And Drying Of Tableware (AREA)

Abstract

The invention discloses a dishwasher with multiple washing units, which comprises a box body, wherein at least a first washing unit and a second washing unit are independently arranged in the box body, and the first washing unit and the second washing unit are used for washing tableware independently. When a first washing unit and a second washing unit are in a working state at the same time, the first washing unit firstly washes, and after the first washing unit finishes rinsing, a drain valve is controlled to enable rinsing water of the first washing unit to be drained into the second washing unit to be used as washing water of the second washing unit. The dishwasher with multiple washing units and the drainage control method can improve washing efficiency and save resources.

Description

Dish washer with multiple washing units and drainage control method
Technical Field
The invention relates to the technical field of dish-washing machines, in particular to a dish-washing machine with multiple washing units and a drainage control method.
Background
At present, most of the dishwashers on the market have only one washing unit. With the requirement of people on balanced nutrition diet, more and more users consider cooking at home, and have new requirements on the type and style of dishes, and more kinds of dishes can use more tableware. Or when children are present at home, tableware is prepared for the children individually. More and more users need to wash more dishes or to wash dishes separately.
If the existing dish washer adopts a mode of washing for multiple times, the requirement is difficult to meet in the aspect of washing time; if two or more dish washers are purchased to separately and simultaneously wash, not only can great waste of energy and water resources be brought, but also the occupied space is large, and the dish washer is not suitable for household use. And the independent water feeding and draining of the dish washing machines of a plurality of washing units can cause great resource waste.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art, and to provide a dishwasher with multiple washing units and a drainage control method, wherein two washing units which operate independently are provided to meet the requirement of a user for independent washing of tableware, and rinse water which meets the washing requirement of a first washing unit flows into a second washing unit as washing water through the arrangement of a drainage pipeline of the first washing unit and the drainage control method, thereby saving water resources.
In order to solve the technical problems, the invention adopts the technical scheme that the basic concept is as follows:
a dishwasher with multiple washing units comprises a cabinet, at least a first washing unit and a second washing unit are arranged in the cabinet, and the first washing unit and the second washing unit wash tableware independently.
Further, the first washing unit and the second washing unit are disposed up and down.
Furthermore, the drain pipeline of the first washing unit is connected with the water inlet pipeline of the second washing unit, the drain pipeline of the first washing unit is provided with a drain valve, and the drain valve controls the drain pipeline of the first washing unit, so that the drain water of the first washing unit flows into the second washing unit or is discharged out of the dishwasher.
Furthermore, the water inlet pipeline of the first washing unit and the water inlet pipeline of the second washing unit are connected to a water inlet structure of the dish washing machine, a water inlet valve is arranged on the water inlet structure of the dish washing machine, and the water inlet valve controls the water inlet structure of the dish washing machine to respectively or simultaneously feed water into the first washing unit and the second washing unit.
Further, the first washing unit and the second washing unit are respectively provided with a heating device for heating the washing water in the first washing unit and the second washing unit and/or drying the dishes.
Furthermore, the first washing unit and the second washing unit are respectively provided with a cabinet door and a display operation unit on the box body and used for putting tableware and displaying and operating each washing unit.
A method for controlling drainage of a dishwasher having a plurality of washing units,
when the first washing unit and the second washing unit are in a working state at the same time, the first washing unit washes firstly, and after the first washing unit finishes rinsing, the drain valve is controlled to enable rinsing water of the first washing unit to be discharged into the second washing unit to be used as washing water of the second washing unit.
Further, the first washing unit performs washing first, and after the first washing unit completes the last rinsing, the drain valve is controlled to discharge the last rinsing water of the first washing unit into the second washing unit as the washing water of the second washing unit.
Further, if the last rinsing water of the first washing unit is heated in the last rinsing, the second washing unit directly washes using the last rinsing water;
and if the last rinsing water is not heated, the second washing unit heats the last rinsing water and then washes the last rinsing water.
Further, when the first washing unit and the second washing unit are simultaneously in the working state, the user selects whether to enter the water saving mode,
if yes, the first washing unit carries out washing firstly;
and if not, respectively washing by the first washing unit and the second washing unit.
Further, the first washing unit dries after the last rinsing water is drained into the second washing unit.
Furthermore, after the rinsing water of the first washing unit is drained into the second washing unit, the water level height in the second washing unit is detected, and if the water level in the second washing unit does not reach the set water level, the second washing unit feeds water until the water level reaches the set water level.
Further, after the second washing unit is filled with water until the set water level is reached, the water in the second washing unit is heated, and then washing is performed.
By adopting the technical scheme, the invention has the following beneficial effects:
1. the first washing unit and the second washing unit of the dishwasher with the multiple washing units can respectively wash tableware, so that the washing efficiency of a user is improved, and the washing time is saved.
2. The drainage pipeline of the first washing unit of the dishwasher with the multiple washing units is communicated with the water inlet pipeline of the second washing unit, so that the drainage of the first washing unit can be drained into the second washing unit for the washing water of the second washing unit under the condition of meeting the condition, and the water resource is saved.
3. The method for controlling the drainage of the dish washing machine with the multiple washing units can utilize the last rinsing water of the first washing unit for the main washing of the second washing unit under the condition that a user selects an energy-saving mode, and can save water resources and energy resources to the maximum extent.
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 and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention to its proper form. 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 schematic view of the structure of a dishwasher having a multi-washing unit according to the present invention;
FIG. 2 is an external view of a dishwasher of the present invention having a multi-washing unit;
FIG. 3 is a flow chart of a method for controlling drain in a dishwasher having multiple washing units according to an embodiment of the present invention;
FIG. 4 is a flow chart of a method for controlling drain of a dishwasher having multiple washing units according to another embodiment of the present invention.
Wherein, 1-a box body; 2-first washing unit inner container; 2' -a second washing unit liner; 3-a first washing unit door body; 3' -a second wash unit door; 4-a first wash unit rack; 4' -a second wash unit rack; 5-a first wash unit spray arm; 5' -second wash unit spray arm; 6-a first wash unit sink; 6' -a second wash unit sink; 7-a first wash unit wash pump; 7' -a second wash unit wash pump; 8-a first wash unit detergent adder; 8' -a second wash unit detergent adder; 9-a drain valve; 10-a first wash unit drain pump; 10' -a second wash unit drain pump; 11-dishwasher controller; 12-a first washing unit display operation unit; 12' -a second washing unit display operation unit; 13-a first wash unit filter; 13' -a second wash unit filter; 14-a dishwasher water inlet structure; 15-a water inlet valve; 16-the drain line of the first washing unit; 16' -the drain line of the second washing unit; 17-a first wash unit heater; 17' -second washing unit heater
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", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, 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" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; 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.
Example one
As shown in fig. 1, the present embodiment discloses a dishwasher having a multi-washing unit.
The dishwasher with multiple washing units is provided with a first washing unit and a second washing unit at the upper part and the lower part, the washing units can respectively wash dishes, when the first washing unit and the second washing unit need to wash the dishes, a user can select a water-saving and energy-saving mode, and a controller controls water of the last hot rinsing of the first washing unit at the upper part to enter the second washing unit at the lower part to be used as main washing inlet water.
The structure of the dishwasher with multiple washing units of the embodiment is shown in fig. 1, and the appearance is shown in fig. 2, the dishwasher comprising a first washing unit and a second washing unit is provided with a box body 1, a first washing unit inner container 2 and a second washing unit inner container 2'; a first washing unit door body 3, a second washing unit door body 3'; a first washing unit rack 4, a second washing unit rack 4'; a first washing unit spray arm 5, a second washing unit spray arm 5'; a first washing unit tank 6, a second washing unit tank 6'; a first wash unit wash pump 7, a second wash unit wash pump 7'; a first wash unit detergent adder 8, a second wash unit detergent adder 8'; a drain valve 9; a first wash unit drain pump 10, a second wash unit drain pump 10'; a dishwasher controller 11; a first washing unit display operation unit 12, a second washing unit display operation unit 12'; a first wash unit filter 13, a second wash unit filter 13'; a dishwasher inlet structure 14; a water inlet valve 15; a drain line 16 of the first washing unit, a drain line 16' of the second washing unit; a first washing unit heater 17, a second washing unit heater 17'.
The water inlet pipeline of the first washing unit and the water inlet pipeline of the second washing unit are simultaneously connected to the water inlet structure of the dishwasher, and the water inlet valve 15 controls the water inlet structure 14 of the dishwasher to simultaneously or respectively feed water to the first washing unit and the second washing unit. And the first wash unit drain line 16 is connected to the water inlet line of the second wash unit, the first wash unit drain pump 10 controls the water from the first drain line 16 to either drain into the water inlet line of the second wash unit or out of the dishwasher.
The user can wash the dishes using one of the washing units alone or both washing units simultaneously. When a user needs to wash dishes using two washing units, an energy saving mode may be selected, and an energy saving mode selection item or button is selected on the display operation units 12, 12' of the first and second washing units, and after the user selects this mode, the first washing unit at the upper portion first washes the dishes, and the second washing unit at the lower portion does not start washing for a while. After the upper washing unit first water inlet reaches the target water level, the first washing unit heater 17 and the first washing unit washing pump 7 work, the heating and spraying step is started, water is drained after washing for a certain time, the dishwasher controller 11 controls the first washing unit draining pump 10 to work and the draining valve 9 to switch to drain the washing water out of the dishwasher; the upper first washing unit comprises at least one heating and rinsing step, the first washing unit starts heating and spraying steps after water enters the first washing unit to a target water level, after rinsing for a certain time, the dishwasher controller 11 controls the first washing unit to drain the pump 10 to work and the drain valve 9 to be switched to the second washing unit which drains rinsing water into the lower part, at this time, the upper first washing unit enters a drying step, the lower second washing unit uses the rinsing water drained by the upper first washing unit as washing water, and spray washing is directly carried out without heating steps. The water inflow for washing once and the electric quantity for heating the washing water are saved.
When a user sets the washing program of the first washing unit at the upper part as a quick washing program without heating in the last rinsing, for example, without drying, and the user selects the water-saving mode, the first washing unit at the upper part is rinsed at the last time, the first washing unit heater 17 does not work, after the rinsing is finished, the dishwasher controller 11 controls the drain valve 9 to switch to the second washing unit which drains the rinsing water into the lower part, the first washing unit drain pump 10 drains the rinsing water into the second washing unit at the lower part, and then the dishwasher controller 11 controls the second washing unit to perform a corresponding heating step according to the program setting.
The dishwasher with the multiple washing units disclosed by the embodiment can independently control the first washing unit and the second washing unit to wash dishes, and the first washing unit and the second washing unit can independently perform washing operation. And, after the user's selection, the drain of the first washing unit may be controlled to be drained into the second washing unit as the washing water of the second washing unit.
Utilize the two washing unit dish washer of this embodiment can better improvement washing efficiency, reduce resource consumption simultaneously.
Example two
As shown in fig. 3, the present embodiment discloses a method for controlling drainage of a dishwasher having multiple washing units, wherein when a first washing unit and a second washing unit are simultaneously in an operating state, the first washing unit performs washing first, and after the first washing unit completes last rinsing, a drainage valve is controlled such that last rinsing water of the first washing unit is drained into the second washing unit as washing water of the second washing unit.
The method comprises the following specific steps:
s11, judging whether the double washing units run simultaneously, if so, entering S12, and if not, independently arranging the first washing unit or the second washing unit for washing;
in this step, whether the first washing unit and the second washing unit receive the operation instruction at the same time and are in an operation state is judged, and the first washing unit and the second washing unit can respectively perform a complete washing procedure which comprises the steps of heating washing water, spraying washing, rinsing and drying. If both washing units receive the instruction to perform the complete washing process at the same time, the process proceeds to step S12.
If only one of the washing units, the first washing unit or the second washing unit receives the operation instruction, the first washing unit or the second washing unit is independently arranged to carry out a complete washing program.
S12, selecting whether to enter the energy-saving mode by the user, if so, entering S13, and if not, respectively washing the first washing unit and the second washing unit;
in this step, when it is determined that the two washing units need to simultaneously run the washing program, the user may select whether to enter the energy saving mode, and if the user selects the energy saving mode through the display operation unit provided on the dishwasher cabinet, the step S13 is performed.
If the user selects not to enter the energy-saving mode, the water inlet valve is controlled to respectively feed washing water to the first washing unit and the second washing unit through the water inlet structure of the dish-washing machine, and then the first washing unit and the second washing unit respectively carry out complete washing procedures including heating the washing water, spraying, washing, rinsing and drying. And the drainage water of the first washing unit and the second washing unit after spray washing and rinsing is respectively drained out of the dishwasher through the drainage pipeline of the first washing unit and the drainage pipeline of the second washing unit.
S13, the first washing unit carries out water washing firstly, and the second washing unit is standby;
in this step, after the user selects the energy saving mode, the first washing unit first performs water washing, the second washing unit stands by without water intake or heating, and the second washing unit does not perform any action.
S14, after the first washing unit finishes the last rinsing, draining the last rinsing water of the first washing unit into a second washing unit;
in this step, after the spray washing of the first washing unit is completed, a last rinsing process is performed, and after the last rinsing process of the first washing unit is completed, the last rinsing water of the first washing unit is drained into the second washing unit through the drain line of the first washing unit.
S15, judging whether the last rinsing of the first washing unit is heated, if so, entering S16, and if not, heating the washing water in the second washing unit;
in this step, if the first washing unit performs a complete normal washing process including drying, the last rinsing water is heated during the last rinsing, and if it is determined that the first washing unit always heats the last rinsing water during the last rinsing, the process proceeds to step S16.
If the first washing unit performs a quick washing process, i.e., quick washing without drying, the last rinsing process does not heat the water, and in this case, the second washing unit heats the last rinsing water of the first washing unit, which is drained in.
And S16, washing by the second washing unit, and drying by the first washing unit.
In this step, the second washing unit operates a washing process using the last rinsing water discharged from the first washing unit as washing water, and the first washing unit dries the dishes.
The dish washing and water discharging control method with multiple washing units in the embodiment can well save the washing water of the second washing unit and the energy of heating water when the washing operation is executed simultaneously, can save resources and energy while improving the washing efficiency in the simultaneous washing, and improves the use experience of users.
EXAMPLE III
S21, judging whether the double washing units run simultaneously, if so, entering S22, and if not, independently arranging the first washing unit or the second washing unit for washing;
s22, selecting whether to enter the energy-saving mode by the user, if so, entering S23, and if not, respectively washing the first washing unit and the second washing unit;
s23, the first washing unit carries out water washing firstly, and the second washing unit is standby;
s24, after the first washing unit finishes the last rinsing, draining the last rinsing water of the first washing unit into a second washing unit;
s25, judging whether the water level in the second washing unit reaches the set water level, if so, entering the step S26, and if not, feeding water into the second washing unit until the water level reaches the set water level;
in this step, after the last rinsing water of the first washing unit is drained, it is detected whether the water level reaches a requirement, and if so, the process proceeds to step S26, and if not, water is supplied through the dishwasher water supply device.
S26, judging whether the last rinsing of the first washing unit is heated, if so, entering S27, and if not, heating the washing water in the second washing unit;
and S27, washing by the second washing unit, and drying by the first washing unit.
The difference between the embodiment and the second embodiment is that after the last rinsing water of the first washing unit is discharged into the second washing unit, the current amount of washing water of the second washing unit is judged, and if the amount of washing water does not reach the water level at which the second washing unit needs to be washed, the water inlet valve controls the water inlet structure of the dishwasher to feed water into the second washing unit through the water inlet pipeline, so that the amount of washing water of the second washing unit reaches the preset water level. The embodiment can better meet the washing requirement of the second washing unit under the condition of saving the washing water, so that the washing water quantity of the second washing unit can meet the requirement of the washing program, and the situation that the preset washing program cannot be fully executed due to insufficient washing water is prevented.
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. A dishwasher with multiple washing units is characterized by comprising a box body, wherein at least a first washing unit and a second washing unit are arranged in the box body, and the first washing unit and the second washing unit wash tableware independently.
2. The dishwasher of claim 1, wherein the drain line of the first washing unit is connected to the water inlet line of the second washing unit, and a drain valve is provided on the drain line of the first washing unit, the drain valve controlling the drain line of the first washing unit such that the drain of the first washing unit flows into the second washing unit or is drained out of the dishwasher.
3. The dishwasher of claim 2, wherein the water inlet line of the first washing unit and the water inlet line of the second washing unit are connected to a dishwasher inlet structure, the dishwasher inlet structure being provided with a water inlet valve for controlling the dishwasher inlet structure to feed water to the first washing unit and the second washing unit respectively or simultaneously.
4. A dishwasher having multiple washing units according to any of claims 1 to 3, wherein the first and second washing units are each provided with heating means for heating the wash water in the first and second washing units and/or drying the dishes.
5. The dishwasher of any one of claims 1 to 3, wherein the first washing unit and the second washing unit are respectively provided with a cabinet door and a display operation unit on the cabinet for putting dishes and displaying operation of each washing unit.
6. A method for controlling the drainage of a dishwasher having multiple washing units,
when the first washing unit and the second washing unit are in a working state at the same time, the first washing unit washes firstly, and after the first washing unit finishes rinsing, the drain valve is controlled to enable rinsing water of the first washing unit to be discharged into the second washing unit to be used as washing water of the second washing unit.
7. The drain control method of claim 6, wherein the first washing unit performs washing first, and after the first washing unit completes the last rinsing, the drain valve is controlled such that the last rinsing water of the first washing unit is drained into the second washing unit as the washing water of the second washing unit.
8. The drain control method of claim 7, wherein if the last rinsing water of the first washing unit is heated in the last rinsing, the second washing unit directly washes using the last rinsing water;
and if the last rinsing water is not heated, the second washing unit heats the last rinsing water and then washes the last rinsing water.
9. The drain control method of a dishwasher having a plurality of washing units according to any one of claims 6 to 8, wherein when the first washing unit and the second washing unit are simultaneously in operation, a user selects whether to enter a water saving mode,
if yes, the first washing unit carries out washing firstly;
and if not, respectively washing by the first washing unit and the second washing unit.
10. The method as claimed in any one of claims 6 to 8, wherein the level of water in the second washing unit is detected after the rinse water of the first washing unit is drained into the second washing unit, and the second washing unit is filled with water until the level of water reaches the set level if the level of water in the second washing unit does not reach the set level.
CN201910385245.3A 2019-05-09 2019-05-09 Dish washer with multiple washing units and drainage control method Pending CN111904352A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114343530A (en) * 2021-12-09 2022-04-15 宁波欧琳科技股份有限公司 Water tank dish washing machine and cleaning method

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