CN113367629A - Dish washing machine and spraying detection control method thereof - Google Patents

Dish washing machine and spraying detection control method thereof Download PDF

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Publication number
CN113367629A
CN113367629A CN202110666580.8A CN202110666580A CN113367629A CN 113367629 A CN113367629 A CN 113367629A CN 202110666580 A CN202110666580 A CN 202110666580A CN 113367629 A CN113367629 A CN 113367629A
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Prior art keywords
controller
strain gauge
resistance
dishwasher
difference value
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CN202110666580.8A
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CN113367629B (en
Inventor
麦伟添
潘叶江
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Vatti Co Ltd
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Vatti Co Ltd
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0049—Detection or prevention of malfunction, including accident prevention
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4217—Fittings for water supply, e.g. valves or plumbing means to connect to cold or warm water lines, aquastops
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4278—Nozzles
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4295—Arrangements for detecting or measuring the condition of the crockery or tableware, e.g. nature or quantity
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/46—Devices for the automatic control of the different phases of cleaning ; Controlling devices
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/50—Racks ; Baskets
    • A47L15/501—Baskets, e.g. for conveyor-type, in-sink type or hood-type machines
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/50—Racks ; Baskets
    • A47L15/502—Cutlery baskets
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/185—Electrical failure alarms
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/04—Crockery or tableware details, e.g. material, quantity, condition
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/24—Spray arms status, e.g. detection of spray arm rotation
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/26—Indication or alarm to the controlling device or to the user
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2601/00—Washing methods characterised by the use of a particular treatment
    • A47L2601/02—Pressurised cleaning liquid delivered by a pump

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Washing And Drying Of Tableware (AREA)

Abstract

The invention discloses a dish washing machine and a spraying detection control method thereof, wherein the dish washing machine comprises a dish washing machine body, a spraying arm and a strain gauge are arranged in an inner cavity of the dish washing machine body, the strain gauge is located in a spraying range of the spraying arm, and the strain gauge is electrically connected with a controller for receiving and analyzing a resistance value. The dishwasher analyzes and judges whether the spraying of the spraying arm of the dishwasher body is normal or not through detecting the resistance difference value of the strain gauge which changes before and after the spraying of the spraying arm, and further obtains whether the spraying of the dishwasher is normal or not. The detection is convenient and accurate. The invention is applied to the technical field of dish-washing machines.

Description

Dish washing machine and spraying detection control method thereof
Technical Field
The invention relates to the technical field of dish washing machines, in particular to a dish washing machine and a spraying detection control method thereof.
Background
The dish washer is a household kitchen appliance for replacing manual dish washing, dishes, cups, spoons, chopsticks, knife and fork, pans, shovels and other tableware or cooking utensils. Dishwashers are used more and more widely and provide more and more perfect functions.
Dish washer generally adopts the shower nozzle that sprays hot water and cleaner to wash the bowl utensil, and in the cleaning process, the cleaning solution mixes the residue and falls into dish washer together, and the residue is very easily to spraying the hole jam, influences the normal washing of dish washer.
In the prior art, the spraying effect of the dish washing machine cannot be detected.
Disclosure of Invention
Technical problem to be solved
A dish washing machine and a spraying detection control method thereof solve the technical problem that the dish washing machine in the prior art cannot detect the spraying effect.
(II) technical scheme
In order to solve the technical problem, the invention provides a dish washing machine which comprises a dish washing machine body, wherein a spray arm and a strain gauge are arranged in an inner cavity of the dish washing machine body, the strain gauge is located in a spray range of the spray arm, and the strain gauge is electrically connected with a controller used for receiving and analyzing a resistance value.
In a further improvement, the number of the strain gauges is at least two, and each strain gauge is uniformly distributed on the top of the inner cavity of the dishwasher body.
In a further improvement, a dish rack is arranged in an inner cavity of the dish washing machine body, and a weighing sensor is arranged on the dish rack;
the spray arm is connected with a water inlet valve and a booster pump;
the weighing sensor, the water inlet valve and the booster pump are electrically connected with the controller respectively.
Further improved, the spray arm includes spray arm and lower spray arm, it is located the top of bowl frame to go up the spray arm, spray arm is located the below of bowl frame down, the foil gage is located spray arm's the within range that sprays.
The spraying detection control method of the dishwasher comprises the following steps:
when no tableware is arranged in the dishwasher body, the controller records a first resistance value of the strain gauge in a state of no mechanical deformation;
starting a spray arm of the dishwasher body, wherein the controller records a second resistance value of the strain gauge in a mechanical deformation state;
subtracting the first resistance value from the second resistance value to obtain a resistance difference value, and if the resistance difference value is smaller than a set resistance difference value, indicating that the spraying of the dishwasher body is abnormal; if the resistance difference is larger than or equal to the set resistance difference, the dishwasher body is indicated to spray normally.
Further improved, when no tableware is in the dishwasher body, the controller records the average first resistance value of the strain gauge in the state of no mechanical deformation;
starting a spray arm of the dishwasher body, and recording an average second resistance value of the strain gauge in a mechanical deformation state by the controller;
subtracting the average first resistance value from the average second resistance value to obtain a resistance difference value, and if the resistance difference value is smaller than a set resistance difference value, indicating that the spraying of the dishwasher body is abnormal; if the resistance difference is larger than or equal to the set resistance difference, the dishwasher body is indicated to spray normally.
In a further improvement, the weight of the dish rack is detected through a weighing sensor, if the detected weight of the dish rack is less than a set weight, no tableware is in the dish rack, and the controller starts to record a first resistance value of the strain gauge in a state of no mechanical deformation; if the detected weight of the dish rack is greater than or equal to the set weight, the dish rack is indicated to be provided with the tableware, and the controller does not memorize the first resistance value of the strain gauge in the state without mechanical deformation.
In a further improvement, a set weight is preset in the controller, and after the controller judges that no tableware exists in the dish rack, the controller starts to record a first resistance value of the strain gauge in a state of no mechanical deformation; after the controller judges that tableware is arranged in the dish rack, the controller does not memorize the first resistance value of the strain gauge in the state of no mechanical deformation, and the controller controls the dish washer body to send out a first alarm signal.
The dish washing machine is characterized in that a set resistance difference value is preset in the controller, if the resistance difference value is smaller than the set resistance difference value, the dish washing machine body is indicated to be abnormal in spraying, and the controller controls the dish washing machine body to send out a second alarm signal.
In a further improvement, the controller controls to open the water inlet valve and start the booster pump to start the spray arm of the dishwasher body.
(III) advantageous effects
The dish washer and the spray detection control method thereof of the invention are characterized in that a strain gauge is arranged in an inner cavity of an inner body of the dish washer, when no tableware exists in the dish washer body, a first resistance value of a spray arm of the strain gauge in a mechanical deformation state and a second resistance value of the spray arm in a mechanical deformation state are respectively detected, the first resistance value is subtracted from the second resistance value to obtain a resistance difference value, then the resistance difference value is compared with a set resistance difference value, and if the resistance difference value is smaller than the set resistance difference value, the dish washer body is abnormal in spray; if the resistance difference is larger than or equal to the set resistance difference, the dishwasher body is indicated to spray normally. The set resistance value is preset in the controller, the controller can receive and analyze the first resistance value and the second resistance value, and the controller can also control the dishwasher body to send out a first alarm signal.
The dishwasher analyzes and judges whether the spraying of the spraying arm of the dishwasher body is normal or not through detecting the resistance difference value of the strain gauge which changes before and after the spraying of the spraying arm, and further obtains whether the spraying of the dishwasher is normal or not. The detection is convenient and accurate.
Drawings
FIG. 1 is a schematic view of a dishwasher according to an embodiment of the present invention;
FIG. 2 is a diagram illustrating the relationship between the strain gage and the upper spray arm in accordance with one embodiment of the present invention;
fig. 3 is a flowchart of a spray detection control method according to an embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Referring to fig. 1 to 3, a dishwasher includes a dishwasher body, a spray arm and a strain gauge 2 are disposed in an inner cavity 1 of the dishwasher body, the strain gauge 2 is located in a spray range of the spray arm, and the strain gauge 2 is electrically connected to a controller 3 for receiving and analyzing a resistance value.
According to the dish washing machine, the strain gauge 2 is arranged in the inner cavity 1 of the dish washing machine inner body, when no tableware is arranged in the dish washing machine body, the strain gauge 2 is used for respectively detecting a first resistance value under the condition that the spray arm is not in a mechanical deformation state and a second resistance value under the condition that the spray arm is in the mechanical deformation state, the first resistance value is subtracted from the second resistance value to obtain a resistance difference value, then the resistance difference value is compared with a set resistance difference value, and if the resistance difference value is smaller than the set resistance difference value, the dish washing machine body is indicated to be abnormal in spraying; if the resistance difference is larger than or equal to the set resistance difference, the dishwasher body is indicated to spray normally. The set resistance value is preset in the controller 3, the controller 3 can receive and analyze the first resistance value and the second resistance value, and the controller 3 can also control the dishwasher body to send out a first alarm signal.
The dish washer of this embodiment is through the detection to the resistance difference that foil gage 2 changes around the spray arm sprays to whether the analysis judges dish washer body spray arm sprays normally, and then it sprays whether normal to obtain the dish washer. The detection is convenient and accurate.
Further, in an embodiment, the number of the strain gauges 2 is at least two, and each strain gauge 2 is uniformly distributed on the top of the inner cavity 1 of the dishwasher body. By providing the plurality of strain gauges 2, a plurality of first resistance values and a plurality of second resistance values can be detected respectively, an average first resistance value is obtained by the plurality of first resistance values, and an average second resistance value is obtained by the plurality of second resistance values, so that a resistance difference value is more accurate.
Further, in one embodiment, the inner cavity 1 of the dishwasher body is provided with a dish rack 4, and the dish rack 4 is provided with a weighing sensor 5;
the spray arm is connected with a water inlet valve 6 and a booster pump 7;
and the weighing sensor 5, the water inlet valve 6 and the booster pump 7 are respectively electrically connected with the controller 3. Whether tableware exists in the dish rack 4 or not is detected through the weighing sensor 5, and the detection is convenient. The control elements of the weighing sensor 5, the water inlet valve 6 and the booster pump 7 are respectively integrated on the controller 3, so that the space and the structure are saved. The controller 3 is used for uniformly controlling the on-off of the weighing sensor 5, the water inlet valve 6 and the booster pump 7, and the controller 3 is used for receiving and analyzing the resistance value of the strain gauge 2, so that the control is convenient. When the spray arm needs to be started, the water inlet valve 6 and the booster pump 7 are controlled to be opened by the controller 3.
Further, in one embodiment, the spray arm comprises an upper spray arm 8 and a lower spray arm 9, the upper spray arm 8 is located above the dish rack 4, the lower spray arm 9 is located below the dish rack 4, and the strain gauge 2 is located in a spraying range of the upper spray arm 8. Specifically, an upper spray port 81 and a lower spray port 82 are arranged on the upper spray arm 8, a spray port 91 is arranged on the lower spray arm 9, the upper spray arm 8 and the lower spray arm 9 are respectively connected with a spray pipeline 101, each spray pipeline 101 is respectively connected with a water inlet pipeline 102, and the water inlet valve 6 and the booster pump 7 are arranged on the water inlet pipeline 102. Wherein, the strain gauge 2 is electrically connected with the controller 3 through a connecting wire.
The spraying detection control method of the dishwasher comprises the following steps:
when no tableware is arranged in the dishwasher body, the controller 3 records a first resistance value of the strain gauge 2 in a state of no mechanical deformation;
starting a spray arm of the dishwasher body, and recording a second resistance value of the strain gauge 2 in a mechanical deformation state by the controller 3;
subtracting the first resistance value from the second resistance value to obtain a resistance difference value, and if the resistance difference value is smaller than a set resistance difference value, indicating that the spraying of the dishwasher body is abnormal; if the resistance difference is larger than or equal to the set resistance difference, the dishwasher body is indicated to spray normally.
According to the spraying detection control method of the dish washing machine, the resistance difference value of the strain gauge 2 which changes before and after the spraying arm sprays is detected, so that whether the spraying arm of the dish washing machine body sprays normally is analyzed and judged, whether the spraying arm of the dish washing machine sprays normally is obtained, the detection is convenient, and the detection is accurate.
Further, in one embodiment, when there is no tableware in the dishwasher body, the controller 3 records the average first resistance value of the strain gauge 2 in the state of no mechanical deformation;
starting a spray arm of the dishwasher body, and recording an average second resistance value of the strain gauge 2 in a mechanical deformation state by the controller 3;
subtracting the average first resistance value from the average second resistance value to obtain a resistance difference value, and if the resistance difference value is smaller than a set resistance difference value, indicating that the spraying of the dishwasher body is abnormal; if the resistance difference is larger than or equal to the set resistance difference, the dishwasher body is indicated to spray normally. A more accurate resistance difference value can be obtained by averaging the first resistance value and the second resistance value. Here, the plurality of strain gauges 2 may be provided, and the average first resistance value may be obtained from the first resistance values of the plurality of strain gauges 2, and the average second resistance value may be obtained from the second resistance values of the plurality of strain gauges 2.
Further, in one embodiment, the weight of the dish rack 4 is detected by the weighing sensor 5, if the detected weight of the dish rack 4 is less than the set weight, it indicates that no tableware is in the dish rack 4, and the controller 3 starts to record the first resistance value of the strain gauge 2 in the state of no mechanical deformation; if the detected weight of the dish rack 4 is greater than or equal to the set weight, the dish rack 4 is indicated to be provided with the tableware, and the controller 3 does not memorize the first resistance value of the strain gauge 2 in the state without mechanical deformation. Whether tableware exists in the dish rack 4 or not is detected through the weighing sensor 5, and the detection is convenient. The set weight may be obtained empirically or by multiple tests.
Further, in one embodiment, a set weight is preset in the controller 3, and after the controller 3 determines that no tableware is present in the dish rack 4, the controller 3 starts to record a first resistance value of the strain gauge 2 in a state of no mechanical deformation; after the controller 3 judges that tableware exists in the dish rack 4, the controller 3 does not memorize the first resistance value of the strain gauge 2 in the state of no mechanical deformation, and the controller 3 controls the dish washer body to send out a first alarm signal to prompt a worker to clean the tableware.
Further, in an embodiment, a set resistance difference value is preset in the controller 3, if the resistance difference value is smaller than the set resistance difference value, it indicates that the dishwasher body is abnormal in spraying, and the controller 3 controls the dishwasher body to send out a second alarm signal to prompt a worker to perform processing.
Further, in one embodiment, the controller 3 controls to open the water inlet valve 6 and to activate the booster pump 7 to activate the spray arm of the dishwasher body, which is convenient to control.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (10)

1. The utility model provides a dish washer, its characterized in that, includes the dish washer body, the inner chamber of dish washer body is equipped with spray arm and foil gage, the foil gage is located spray arm's the within range that sprays, the foil gage links to each other with the controller electrical property that is used for receiving, assay resistance value.
2. The dishwasher of claim 1, wherein the number of the strain gauges is at least two, and each strain gauge is uniformly distributed on the top of the inner cavity of the dishwasher body.
3. The dishwasher of claim 1, wherein the inner cavity of the dishwasher body is provided with a dish rack, and the dish rack is provided with a weighing sensor;
the spray arm is connected with a water inlet valve and a booster pump;
the weighing sensor, the water inlet valve and the booster pump are electrically connected with the controller respectively.
4. The dishwasher of claim 3, wherein the spray arm comprises an upper spray arm and a lower spray arm, the upper spray arm being located above the rack, the lower spray arm being located below the rack, the strain gauge being located within a spray range of the upper spray arm.
5. A spray detection control method of a dishwasher according to any one of claims 1 to 4, comprising the steps of:
when no tableware is arranged in the dishwasher body, the controller records a first resistance value of the strain gauge in a state of no mechanical deformation;
starting a spray arm of the dishwasher body, and recording a second resistance value of the strain gauge in a mechanical deformation state by the controller;
subtracting the first resistance value from the second resistance value to obtain a resistance difference value, and if the resistance difference value is smaller than a set resistance difference value, indicating that the spraying of the dishwasher body is abnormal; if the resistance difference value is larger than or equal to the set resistance difference value, the dishwasher body is indicated to spray normally.
6. The spray detection control method of claim 5, wherein when the tableware is not present in the dishwasher body, the controller records an average first resistance value of the strain gauge in a state of no mechanical deformation;
starting the spray arm of the dishwasher body, and recording an average second resistance value of the strain gauge in a mechanical deformation state by the controller;
subtracting the average first resistance value from the average second resistance value to obtain the resistance difference value, and if the resistance difference value is smaller than the set resistance difference value, indicating that the spraying of the dishwasher body is abnormal; if the resistance difference value is larger than or equal to the set resistance difference value, the dishwasher body is indicated to spray normally.
7. The spray detection control method according to claim 5, wherein a weight of a rack of bowls is detected by a load cell, and if the detected weight of the rack is less than a set weight, it indicates that no tableware is present in the rack, and the controller starts to record the first resistance value of the strain gauge in a state of no mechanical deformation; if the detected weight of the dish rack is greater than or equal to the set weight, the dish rack is indicated to be provided with the tableware, and the controller does not memorize the first resistance value of the strain gauge in the state without mechanical deformation.
8. The spray detection control method according to claim 7, wherein the set weight is preset in the controller, and after the controller determines that the tableware is not present in the dish rack, the controller starts to record the first resistance value of the strain gauge in a state of no mechanical deformation; after the controller judges that the tableware is arranged in the dish rack, the controller does not memorize the first resistance value of the strain gauge in the state of no mechanical deformation, and the controller controls the dish washer body to send out a first alarm signal.
9. The spray detection control method according to any one of claims 5 to 8, wherein the set resistance difference value is preset in the controller, if the resistance difference value is smaller than the set resistance difference value, the spraying of the dishwasher body is indicated to be abnormal, and the controller controls the dishwasher body to send out a second alarm signal.
10. The spray detection control method according to any one of claims 5 to 8, wherein the controller controls to open a water inlet valve, activate a booster pump to activate the spray arm of the dishwasher body.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114018556A (en) * 2021-10-29 2022-02-08 北京红岸水滴科技发展有限公司 Arm washing testing device and method for cleaning equipment and cleaning equipment

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