CN107411669B - Washing control method and device of dish washing machine based on water supply of water tank and dish washing machine - Google Patents
Washing control method and device of dish washing machine based on water supply of water tank and dish washing machine Download PDFInfo
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- CN107411669B CN107411669B CN201710619394.2A CN201710619394A CN107411669B CN 107411669 B CN107411669 B CN 107411669B CN 201710619394 A CN201710619394 A CN 201710619394A CN 107411669 B CN107411669 B CN 107411669B
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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
Abstract
The embodiment of the invention provides a washing control method and device of a dish washing machine based on water supply of a water tank and the dish washing machine, and belongs to the field of dish washing machine control. The operation state of the dishwasher includes a water intake state, a washing state and a water discharge state, and the method includes: storing operating parameters of the dishwasher in operation; detecting whether a dishwasher in operation is powered down; when the dishwasher is powered off, controlling the dishwasher to stand by; detecting whether the dishwasher after power failure is powered on again; and after the dishwasher is powered on again, reading the operating parameters when the dishwasher is powered off, and determining the operating state when the dishwasher is powered off according to the operating parameters, so as to control the operating state when the dishwasher is recovered to be powered off to continue operating. The technical scheme provided by the embodiment of the invention can improve the intelligent level of the dish washing machine based on water supply of the water tank.
Description
Technical Field
The invention relates to the field of dish washing machines, in particular to a washing control method and a washing control device of a dish washing machine based on water supply of a water tank, and further relates to a dish washing machine.
Background
The dishwasher mechanically washes the surface of the tableware by high-temperature and high-pressure jet water flow, saponifies and decomposes greasy dirt and residues on the surface of the tableware by detergent, soaks and swells food residues by hot water, so that the greasy dirt, the residues and the food residues on the surface of the tableware are quickly decomposed and fall off, and the surface of the tableware is cleaned and brightened again. Under the dual functions of flushing of the high-temperature and high-pressure water column and powerful decontamination of the detergent, harmful germs are effectively eluted, the dual effects of cleaning and degerming are achieved, and the washing procedure is completed mainly by mechanical action and chemical action.
Dishwashers are generally provided with a water inlet which is connected to a water tap during use, for example, the water inlet of the dishwasher is connected to the water tap through a water inlet pipe, and washing water is provided for the dishwasher through the water tap. The dishwasher can be installed only in a place having the faucet due to the arrangement position of the faucet, and the arrangement position is limited, thereby causing inconvenience to a user. Accordingly, some dishwasher products based on a tank water supply are available on the market. The dishwasher based on water supply from the water tank stores washing water through the water tank, and only the water tank stores enough water amount during washing dishes. Because the water tank is pre-stored with washing water, and water supply is not needed by a water tap, the dishwasher is not needed to be specially arranged at a place with the water tap, and the use is more convenient. In addition, the problem of washing interruption caused by water stopping in the middle of washing of the dish washer can be avoided.
However, the dishwasher based on water supply from a water tank has the following disadvantages in use: the user fills the water tank with water before the dishwasher is used and then leaves the dishwasher. If the dishwasher loses power in the operation process, the dishwasher enters a standby state, even if the dishwasher is electrified again, the dishwasher can not be automatically started, the whole washing process can not be finished, and inconvenience is brought to the use of a user.
Disclosure of Invention
The embodiment of the invention aims to solve the technical problems in the prior art and provides a technical scheme capable of improving the intelligence level of a dishwasher supplied with water by a water tank.
In order to achieve the above object, a first aspect of embodiments of the present invention provides a washing control method of a dishwasher supplying water based on a water tank, an operating state of the dishwasher including a water supply state, a washing state, and a drain state, wherein the method includes:
storing operating parameters of the dishwasher in operation;
detecting whether a dishwasher in operation is powered down;
when the dishwasher is powered off, controlling the dishwasher to stand by;
detecting whether the dishwasher after power failure is powered on again;
and after the dishwasher is powered on again, reading the operating parameters when the dishwasher is powered off, and determining the operating state when the dishwasher is powered off according to the operating parameters, so as to control the operating state when the dishwasher is recovered to be powered off to continue operating.
Preferably, the method further comprises:
setting a preset water inflow Ls of the water inlet state of the dish-washing machine;
storing the current water inflow Lr of the dishwasher when the dishwasher is in a water inflow state;
after the dish washing machine is powered on again, if the running state of the dish washing machine during power failure is determined to be a water inlet state, judging whether a difference Ls-Lr between a preset water inlet Ls and the current water inlet Lr is larger than 0;
and when the difference Ls-Lr between the preset water inflow Ls and the current water inflow Lr is larger than 0, controlling the dishwasher to continuously operate in a water inflow state until Ls-Lr is 0, and switching to a washing state.
Preferably, the method further comprises:
dividing the preset water inflow Ls into N equal parts, wherein N is more than or equal to 2, and N is a positive integer;
the storing of the current water inflow Lr of the dishwasher when the dishwasher is in a water inflow state includes: and detecting the water inflow when the dishwasher is in a water inflow state, and storing the water inflow when the dishwasher finishes one equal water inflow.
Preferably, when the difference Ls-Lr between the preset water inflow Ls and the current water inflow Lr is equal to 0, the dishwasher is controlled to directly operate in a washing state.
Preferably, after the dishwasher is powered up again, if the operating state of the dishwasher in the power failure state is determined to be a washing state, the dishwasher is controlled to continue to operate in the washing state.
Preferably, after the dishwasher is powered up again, if the running state of the dishwasher in power failure is determined to be the drainage state, the dishwasher is controlled to continue running in the drainage state.
A second aspect of embodiments of the present invention provides a washing control device of a dishwasher supplying water based on a water tank, the operating state of the dishwasher including a water supply state, a washing state, and a water discharge state, wherein the device includes:
the storage module is used for storing the operating parameters of the dishwasher in operation;
the detection module is used for detecting whether the running dish washing machine is powered off or not and whether the dish washing machine powered off is powered on again or not;
the control module is used for controlling the standby of the dishwasher when the dishwasher is powered off;
the control module is also used for reading the operating parameters when the dishwasher is powered off after the dishwasher is powered on again, and determining the operating state when the dishwasher is powered off according to the operating parameters, so as to control the operating state when the dishwasher is recovered to be powered off to continue operating.
Preferably, the detection module comprises:
the power failure detection module is used for detecting whether the running dish washing machine is powered down or not;
the power-on detection module is used for detecting whether the dish-washing machine is powered on again after power failure; or the like, or, alternatively,
the detection module comprises:
and the electric detection module assembly is used for detecting whether the dishwasher in operation is powered down or not and whether the dishwasher after power down is powered up again or not.
Preferably, the apparatus further comprises:
the setting module is used for setting a preset water inflow Ls of the water inlet state of the dishwasher;
the storage module is used for storing the current water inflow Lr of the dishwasher when the dishwasher is in a water inflow state;
the judging module is used for judging whether a difference Ls-Lr between a preset water inflow Ls and a current water inflow Lr is greater than 0 or not when the dishwasher is powered on again and the running state of the dishwasher in power failure is determined to be a water inflow state;
and the control module is used for controlling the dishwasher to continuously operate in a water inlet state when the difference Ls-Lr between the preset water inlet Ls and the current water inlet Lr is greater than 0, and switching to a washing state until Ls-Lr is 0.
Preferably, the preset module is further configured to divide the preset water inflow Ls into N equal parts, where N is greater than or equal to 2, and N is a positive integer;
the storing of the current water inflow Lr of the dishwasher when the dishwasher is in a water inflow state includes: and detecting the water inflow when the dishwasher is in a water inflow state, and storing the water inflow when the dishwasher finishes one equal water inflow.
Preferably, the control module is further configured to control the dishwasher to directly operate in a washing state when a difference Ls-Lr between the preset water inflow Ls and the current water inflow Lr is equal to 0.
Preferably, the control module is further configured to control the dishwasher to continue to operate in the washing state after the dishwasher is powered up again and when the operation state of the dishwasher in the power failure state is determined to be the washing state.
Preferably, the control module is further configured to control the dishwasher to continue operating in the drain state after the dishwasher is powered up again and when the operating state of the dishwasher in the power failure state is determined to be the drain state.
A third aspect of the embodiments of the present invention provides a dishwasher supplying water based on a water tank, comprising a washing control device, wherein the washing control device is the washing control device of the dishwasher supplying water based on the water tank according to the second aspect of the embodiments of the present invention.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
the technical scheme provided by the embodiment of the invention can store the operating parameters of the running dish-washing machine in real time, so that when the dish-washing machine is powered on again after power failure midway, the operating state of the dish-washing machine in the power failure can be judged by searching the operating parameters of the dish-washing machine, the dish-washing machine is controlled to resume the operating state before the power failure to continue to run, the technical defect that the dish-washing machine based on water tank water supply cannot be started automatically after power failure midway is overcome, and the intelligent level of the dish-washing machine based on water tank water supply is improved.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
FIG. 1 is a flowchart of a washing control method of a dishwasher based on water supplied from a water tank according to an embodiment of the present invention;
fig. 2 is a flowchart of a washing control method of a dishwasher based on water supply from a water tank after being powered up again according to an embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.
Referring to fig. 1, a first aspect of the embodiments of the present invention provides a washing control method of a tank-based water supply dishwasher, where the tank-based water supply dishwasher described herein refers to a dishwasher without a faucet, and water used for washing dishes in the dishwasher is washing water stored in a tank in advance. Such a dishwasher may not be provided with a water inlet, since water supply through a tap is not required. When using such a dishwasher, the water tank of the dishwasher needs to be filled with water beforehand, which is connected via a water pipe to the chassis of the dishwasher, which may also be referred to as a cup, which stores the amount of water required for each washing stage. The chassis, the washing pump, the heating device and the water spraying arm are sequentially connected through a water pipe, water in the chassis is extracted by the washing pump under the driving action of the washing pump, and then is sprayed out towards the inner container of the dish washing machine through the water spraying arm after being heated by the heating device. The inner container of the dishwasher is used for accommodating tableware to be washed.
The inventor of this application document discovers in research that dish washer based on water tank water supply does not possess the function that the self-starting was moved after cutting down when using, brings inconvenience for user's use. In order to solve the technical defect, the washing control method of the dishwasher based on water supply of the water tank provided by the embodiment comprises the following steps:
storing operating parameters of the dishwasher in operation; specifically, when the operation states of the dish washer are different, the corresponding operation parameters are different, for example, for the dish washer in the water inlet state, the washing water needs to flow into the chassis of the dish washer from the water tank, the water pipe connecting the water tank and the chassis is provided with a control valve such as an electromagnetic valve for switching on and off the water pipe, in order to realize the water inlet of the dish washer, when the dish washer is in the water inlet state, the electromagnetic valve is in an open state, the on-off state of the electromagnetic valve can be set through operation parameters, different operation parameters represent the on-off state of the electromagnetic valve, more specifically, taking the electromagnetic valve connected with a control module, controlling the on-off of the electromagnetic valve through the control module as an example, when the control module outputs high level, the electromagnetic valve is opened, and when the control module outputs low level, the electromagnetic valve is closed, the corresponding high and low level output may be achieved by setting the value of the corresponding output register by program instructions previously stored in a memory, such as a ROM. The current setting value of the output register may be stored in the memory EEPROM for subsequent searching when needed. Similarly, other operational parameters of the dishwasher, such as the operational state of the washing pump, the operational state of the heater, and the on-off state of the control valve connected to the water pipe between the spray arm and the dishwasher chassis, may be stored in the corresponding storage.
Detecting whether a dishwasher in operation is powered down; specifically, in an embodiment, a power-down detection circuit may be disposed in a control system of the dishwasher, the power-down detection circuit is connected to a power supply of the dishwasher, when the power supply is disconnected, the power-down detection circuit sends a corresponding power-down signal to a control module, such as a single chip microcomputer, in the control system, the single chip microcomputer may store RAM data of the single chip microcomputer at the moment of power-down, such as writing the RAM data to an EEPROM, so as to directly enter a state before power-down when starting next time. In another embodiment, the power-down detection circuit can also be integrated inside a control module, such as a single chip microcomputer.
When the dishwasher is powered off, controlling the dishwasher to stand by; specifically, taking the dishwasher in a washing state when power is off as an example, a washing pump of the dishwasher in the washing state is in a running state, and a control valve such as an electromagnetic valve connected to a water pipe between a chassis and a water spray arm of the dishwasher is in an open state; when the dishwasher is powered off, the standby state of the dishwasher is controlled, namely the corresponding washing pump is controlled to stop running, and the corresponding electromagnetic valve is controlled to be closed.
Detecting whether the dishwasher after power failure is powered on again; similar to the above-mentioned power-down detection, a power-up detection circuit may be provided in a control system of the dishwasher to detect whether the dishwasher is powered up again, and the power-up detection circuit may be integrated in a control module, such as a single chip microcomputer, or may be provided in a peripheral circuit of the control module.
After the dishwasher is powered on again, reading the operation parameters when the dishwasher is powered off, and determining the operation state when the dishwasher is powered off according to the operation parameters, so as to control the operation state when the dishwasher is recovered to be powered off to continue to operate; the operating parameters due to the power down of the dishwasher are already pre-stored in a corresponding memory, e.g. an EEPROM. Thus, the operating parameters stored in the memory can be read directly after the dishwasher is powered up again. For example, for the condition that the power is down when the dishwasher is in the water inlet state, at the moment of the power failure of the dishwasher, the control valve on the water pipe connecting the water tank and the chassis of the dishwasher is in the open state, the corresponding operation parameter when the electromagnetic valve is opened is stored in the memory, when the operation parameter stored in the memory is judged to be the parameter indicating that the electromagnetic valve of the dishwasher is in the open state, the dishwasher is judged to be in the water inlet state when the power is off again, and after the dishwasher is powered on again, the dishwasher is controlled to start operation again in the water inlet state.
The dishwasher supplying water based on the water tank provides washing water for the dishwasher through the water tank, in order to reduce the occupied space of the dishwasher, the volume of the water tank used by the existing dishwasher is relatively small, and the size of the water tank of the dishwasher is generally set to be that when the water tank is filled, the water stored in the water tank can be used for washing the dishwasher once; multiple washing processes require the user to fill up with water multiple times. Adopt the washing control method that above-mentioned embodiment provided to control the cleaning program of dish washer, the inflow when the dish washer intakes is uncertain, fall the power down when the water intake state when the dish washer, after electrifying once more, control module will follow original program setting control dish washer and continue to move with the water intake state, the dish washer will intake again when moving once more, the inflow is the required inflow of a washing stage, because the inflow of accomplishing partly before falling the power down, if intake again after the power down, then need the water tank to store more washing water and just can accomplish the whole course of washing of dish washer. Therefore, a dishwasher controlled to operate by the above washing control method would require a greater volume of the dishwasher, disadvantageously reducing the volume of the dishwasher, while wasting water resources.
In order to solve the above technical problem, in a preferred embodiment of the present invention, the method further includes:
setting a preset water inflow Ls of the water inlet state of the dish-washing machine; the water intake Ls may be pre-stored in a corresponding memory.
Storing the current water inflow Lr of the dishwasher when the dishwasher is in a water inflow state; it should be noted that the water inlet state of the dishwasher refers to a state in which the washing water flows from the water tank of the dishwasher to the chassis of the dishwasher, and the water inlet amount required for each washing stage is preset in the program of the control module. In order to avoid the redundant water consumption of the dish washer caused by restarting, in the embodiment, for example, the water inflow of the dish washer in the water inlet stage can be detected through a flow meter, the flow meter is connected with a control device, the water inflow entering the chassis from the water tank can be collected in real time, and the control module stores the water inflow of the dish washer in real time.
After the dish washing machine is powered on again, if the running state of the dish washing machine during power failure is determined to be a water inlet state, judging whether a difference Ls-Lr between a preset water inlet Ls and the current water inlet Lr is larger than 0; the preset water inflow Ls is the maximum water inflow in the preset water inlet state of the dishwasher, and the current water inflow Lr refers to the current actual water inflow input from the water tank to the chassis in the water inlet state of the dishwasher in each washing stage.
And when the difference Ls-Lr between the preset water inflow Ls and the current water inflow Lr is larger than 0, controlling the dishwasher to continuously operate in a water inflow state until Ls-Lr is 0, and switching to a washing state. And gradually increasing the current water inflow Lr from 0 along with the time, and controlling the dishwasher to enter the next state of the water inflow state, namely a washing state, when the current water inflow Lr is equal to the preset water inflow Ls.
In other words, the current water inflow Lr may be less than or equal to the preset water inflow Ls. In this embodiment, when a difference Ls-Lr between the preset water inflow Ls and the current water inflow Lr is greater than 0, that is, when the current water inflow Lr is less than the preset water inflow Ls, the dishwasher is controlled to continue to operate in the water inflow state until Ls-Lr is equal to 0, and the dishwasher is switched to the washing state. Such benefit is that the inflow that control dish washer used in every washing stage all equals to predetermine the inflow to can reduce the volume of water tank when avoiding extravagant water resource, and then reduce dish washer's occupation space.
In a specific embodiment, the current water intake Lr of the dishwasher may be stored in the following manner:
dividing the preset water inflow Ls into N equal parts, wherein N is more than or equal to 2, and N is a positive integer;
the storing of the current water inflow Lr of the dishwasher when the dishwasher is in a water inflow state includes: and detecting the water inflow when the dishwasher is in a water inflow state, and storing the water inflow when the dishwasher finishes one equal water inflow. For example, the water inflow of the dishwasher in the water inflow stage is detected by a flow meter installed on a water pipe, the flow meter sends a corresponding detection signal such as a pulse signal to the control module, the control module counts the pulse signal, and taking 300 pulse signals as an example to represent 1 liter of water, if 5 liters of water needs to be fed, the flow meter is equivalent to the requirement to send 1500 pulse signals to the control module. 1500 pulse signals can be divided into 15 equal parts in advance. Every time 100 pulse signals are received, corresponding water inflow is stored. For example, when 100 pulses are received for the first time and the stored water inflow is 1, and then 100 pulses are received, the stored water inflow is updated to 2, and so on. When the power is off in the water inlet process, for example, the power is off when 50 pulses are received in the process of receiving 100 pulses for the third time, at this time, the water inflow stored in the memory is 2, after the power is on again, the control module controls the dishwasher to continuously feed 13 equal parts of water, and the water is 5 liters of water as required by adding the original 2 equal parts of water.
Further, as mentioned above, when the difference Ls-Lr between the preset water inflow Ls and the current water inflow Lr is equal to 0, it indicates that water inflow is completed, and at this time, the dishwasher is controlled to directly operate in the next state of the water inflow state: a washing state. And in a washing state, the control module controls the washing pump to start and operate, controls the heating device to heat, and controls the control valve connected to the water pipe between the chassis and the water spraying arm to open so that the dishwasher operates in a washing state.
The power-down event of the dishwasher can occur in any one state when the dishwasher is operated, after the dishwasher is powered up again, if the operation state of the dishwasher when the power-down event is determined to be a washing state, the dishwasher is controlled to continue to operate in the washing state until the washing process is finished when the washing pump cannot continue to pump washing water, and the dishwasher is controlled to turn to the next state: and (5) running in a drainage state.
In a preferred embodiment, in order to prevent the washing pump from being damaged by idle running of the washing pump, the time of the dishwasher in the washing state can be stored, a preset washing time Ts of the washing state of the dishwasher is set firstly, and the time Tr of the dishwasher in the washing state is stored in real time when the dishwasher is washed; if the power is turned on again after the power is off in the washing process, the dishwasher is continuously controlled to operate in the washing state for Ts-Tr and then is switched into the drainage state.
And after the dishwasher is powered up again, if the running state of the dishwasher in power failure is determined to be the drainage state, controlling the dishwasher to continuously run in the drainage state. The drain state refers to a state in which the dirty washing water is drained after the washing state of the dishwasher is completed. Specifically, the drainage of the dishwasher can be controlled by starting the drainage pump, and after the drainage is finished, the dishwasher is shifted to the next stage for operation.
In a preferred embodiment, in order to improve the cleaning effect of the dishwasher, a washing process of the dishwasher generally comprises a plurality of washing stages, in this embodiment, the washing process of the dishwasher comprises a pre-washing stage, a main-washing stage, a rinsing stage and a drying stage; wherein, the operation states of the dishwasher in the pre-washing stage, the main-washing stage and the rinsing stage include a water inlet state, a washing state and a water discharge state. That is, when the dishwasher operates in the pre-washing stage, water is first supplied, then washed and drained, and the pre-washing stage roughly washes the tableware to remove large residues and stains on the tableware; then entering a main washing stage, similarly, firstly feeding water, then washing and then draining water, wherein detergent such as dish washing powder and the like is added into the washing water in the main washing stage to achieve a better cleaning effect; after the main washing stage is finished, the washing stage is carried out, water is firstly added, then washing and water draining are carried out, and the cleaning agent remained on the tableware is washed by the cleaning water, so that the tableware is further cleaned; finally, a drying phase is carried out, in which the dishes in the dishwasher are dried, for example by means of a heating device or the like.
As can be seen from the washing stage of the dishwasher described in the above embodiments, the dishwasher has multiple water feeding, washing and draining actions during the washing process.
For the situation that the dishwasher is powered off and powered up again when in the drainage state, the washing stage of the dishwasher needs to be judged first, for example, if the drainage action of the dishwasher occurs in the prewashing stage, the dishwasher needs to enter the main washing stage after the prewashing stage is completed, and therefore, the dishwasher enters the water inlet state of the main washing stage after the drainage is finished. If the draining action of the dishwasher is in the rinsing stage, the dishwasher needs to enter the drying stage after the rinsing stage is finished, and the dishwasher does not need to enter water in the drying stage, so that the dishwasher enters the drying state instead of the draining state after the draining is finished.
A second aspect of embodiments of the present invention provides a washing control apparatus for a tank-based water supply dishwasher, where the tank-based water supply dishwasher described herein refers to a dishwasher that does not require a water tap to be connected, and water used for washing dishes in the dishwasher is washing water stored in a tank in advance. Such a dishwasher may not be provided with a water inlet, since water supply through a tap is not required. When using such a dishwasher, the water tank of the dishwasher needs to be filled with water beforehand, which is connected via a water pipe to the chassis of the dishwasher, which may also be referred to as a cup, which stores the amount of water required for each washing stage. The chassis, the washing pump, the heating device and the water spraying arm are sequentially connected through a water pipe, water in the chassis is extracted by the washing pump under the driving action of the washing pump, and then is sprayed out towards the inner container of the dish washing machine through the water spraying arm after being heated by the heating device. The inner container of the dishwasher is used for accommodating tableware to be washed.
The inventor of this application document discovers in research that dish washer based on water tank water supply does not possess the function that the self-starting was moved after cutting down when using, brings inconvenience for user's use. In order to solve the technical defect, the washing control device of the dishwasher based on water supply of the water tank provided by the embodiment comprises:
the storage module is used for storing the operating parameters of the dishwasher in operation; specifically, when the operation states of the dish washer are different, the corresponding operation parameters are different, for example, for the dish washer in the water inlet state, the washing water needs to flow into the chassis of the dish washer from the water tank, the water pipe connecting the water tank and the chassis is provided with a control valve such as an electromagnetic valve for switching on and off the water pipe, in order to realize the water inlet of the dish washer, when the dish washer is in the water inlet state, the electromagnetic valve is in an open state, the on-off state of the electromagnetic valve can be set through operation parameters, different operation parameters represent the on-off state of the electromagnetic valve, more specifically, taking the electromagnetic valve connected with a control module, controlling the on-off of the electromagnetic valve through the control module as an example, when the control module outputs high level, the electromagnetic valve is opened, and when the control module outputs low level, the electromagnetic valve is closed, the corresponding high and low level output may be achieved by setting the value of the corresponding output register by program instructions previously stored in a memory, such as a ROM. The current setting of the output register may be stored in a memory, such as an EEPROM, for subsequent lookup when needed. Similarly, other operational parameters of the dishwasher, such as the operational state of the washing pump, the operational state of the heater, and the on-off state of the control valve connected to the water pipe between the spray arm and the dishwasher chassis, may be stored in the corresponding storage.
The detection module is used for detecting whether the running dish washing machine is powered off or not and whether the dish washing machine powered off is powered on again or not; specifically, in an embodiment, the detection module may be a detection circuit arranged in a control system of the dishwasher, the detection circuit is connected to a power supply of the dishwasher, when the power supply is disconnected, the detection circuit sends a corresponding power-down signal to a control module, such as a single chip microcomputer, in the control system, which is described below by taking the single chip microcomputer as an example, the single chip microcomputer may store RAM data of the single chip microcomputer at the moment of power-down, for example, the RAM data is written to an EEPROM, so that the single chip microcomputer directly enters a state before power-down when being started next time. When the dishwasher is electrified again, the detection circuit sends a corresponding electrifying signal to the singlechip, so that the program in the singlechip reads the operating parameters stored in the memory. In another embodiment, the detection circuit can also be integrated inside the single chip microcomputer.
The control module is used for controlling the standby of the dishwasher when the dishwasher is powered off; specifically, the control module may be, for example, a programmable logic control module PLC, a digital signal processor DSP, or a single chip microcomputer, etc., and taking the dishwasher in a washing state when power is off as an example, a washing pump of the dishwasher in the washing state is in an operating state, and a control valve, such as an electromagnetic valve, connected to a water pipe between a chassis of the dishwasher and a water spray arm is in an open state; when the dishwasher is powered off, the standby state of the dishwasher is controlled, namely the corresponding washing pump is controlled to stop running, and the corresponding electromagnetic valve is controlled to be closed.
The control module is also used for reading the operating parameters when the dishwasher is powered off after the dishwasher is powered on again, and determining the operating state when the dishwasher is powered off according to the operating parameters, so as to control the operating state when the dishwasher is recovered to be powered off to continue operating. The operating parameters due to the power down of the dishwasher are already pre-stored in a corresponding memory, e.g. an EEPROM. Thus, the operating parameters stored in the memory can be read directly after the dishwasher is powered up again. For example, for the condition that the power is down when the dishwasher is in the water inlet state, at the moment of the power failure of the dishwasher, the control valve on the water pipe connecting the water tank and the chassis of the dishwasher is in the open state, the corresponding operation parameter when the electromagnetic valve is opened is stored in the memory, when the operation parameter stored in the memory is judged to be the parameter indicating that the electromagnetic valve of the dishwasher is in the open state, the dishwasher is judged to be in the water inlet state when the power is off again, and after the dishwasher is powered on again, the dishwasher is controlled to start operation again in the water inlet state.
In order to reduce the occupied space of the dishwasher while saving the water for the dishwasher, a preferred embodiment of the present invention provides a washing control apparatus further comprising:
the setting module is used for setting a preset water inflow Ls of the water inlet state of the dishwasher; the water intake Ls may be pre-stored in a corresponding memory.
The storage module is used for storing the current water inflow Lr of the dishwasher when the dishwasher is in a water inflow state; it should be noted that the water inlet state of the dishwasher refers to a state in which the washing water flows from the water tank of the dishwasher to the chassis of the dishwasher, and the water inlet amount required for each washing stage is preset in the program of the control module. In order to avoid redundant water consumption caused by restarting of the dishwasher, in the embodiment, for example, the water inflow of the dishwasher in the water inlet stage can be detected through a flow meter, the flow meter is connected with the control device and can collect the water inflow entering the chassis from the water tank in real time, and the control module stores the water inflow of the dishwasher in the memory in real time;
the judging module is used for judging whether a difference Ls-Lr between a preset water inflow Ls and a current water inflow Lr is greater than 0 or not when the dishwasher is powered on again and the running state of the dishwasher in power failure is determined to be a water inflow state; the preset water inflow Ls is the maximum water inflow in the preset water inlet state of the dishwasher, and the current water inflow Lr refers to the current actual water inflow input from the water tank to the chassis in the water inlet state of the dishwasher in each washing stage.
And the control module is used for controlling the dishwasher to continuously operate in a water inlet state when the difference Ls-Lr between the preset water inlet Ls and the current water inlet Lr is greater than 0, and switching to a washing state until Ls-Lr is 0. Specifically, the current water inflow Lr is gradually increased from 0 as time goes on, until the current water inflow Lr is equal to the preset water inflow Ls, the control module will control the dishwasher to enter the next state of the water inflow state, i.e., the washing state.
In other words, the current water inflow Lr may be less than or equal to the preset water inflow Ls. In this embodiment, when a difference Ls-Lr between the preset water inflow Ls and the current water inflow Lr is greater than 0, that is, when the current water inflow Lr is less than the preset water inflow Ls, the dishwasher is controlled to continue to operate in the water inflow state until Ls-Lr is equal to 0, and the dishwasher is switched to the washing state. Such benefit is that the inflow that control dish washer used in every washing stage all equals to predetermine the inflow to can reduce the volume of water tank when avoiding extravagant water resource, and then reduce dish washer's occupation space.
In a specific embodiment, the control device may store the current water intake Lr of the dishwasher in the following manner:
the preset module is also used for dividing the preset water inflow Ls into N equal parts, wherein N is more than or equal to 2, and N is a positive integer;
the storing of the current water inflow Lr of the dishwasher when the dishwasher is in a water inflow state includes: and detecting the water inflow when the dishwasher is in a water inflow state, and storing the water inflow when the dishwasher finishes one equal water inflow. For example, the water inflow of the dishwasher in the water inflow stage is detected by a flow meter installed on a water pipe, the flow meter sends a corresponding detection signal such as a pulse signal to the control module, the control module counts the pulse signal, and taking 300 pulse signals as an example to represent 1 liter of water, if 5 liters of water needs to be fed, the flow meter is equivalent to the requirement to send 1500 pulse signals to the control module. 1500 pulse signals can be divided into 15 equal parts in advance. Every time 100 pulse signals are received, corresponding water inflow is stored. For example, when 100 pulses are received for the first time and the stored water inflow is 1, and then 100 pulses are received, the stored water inflow is updated to 2, and so on. When the power is off in the water inlet process, for example, the power is off when 50 pulses are received in the process of receiving 100 pulses for the third time, at this time, the water inflow stored in the memory is 2, after the power is on again, the control module controls the dishwasher to continuously feed 13 equal parts of water, and the water is 5 liters of water as required by adding the original 2 equal parts of water.
Further, as mentioned above, when the difference Ls-Lr between the preset water inflow Ls and the current water inflow Lr is equal to 0, it indicates that water inflow is completed, and at this time, the control module controls the dishwasher to directly operate in the next state of the water inflow state: a washing state. And in a washing state, the control module controls the washing pump to start and operate, controls the heating device to heat, and controls the control valve connected to the water pipe between the chassis and the water spraying arm to open so that the dishwasher operates in a washing state.
In one embodiment, the control module is further configured to, after the dishwasher is powered up again and when the operating state of the dishwasher in the power-down state is determined to be a washing state, control the dishwasher to continue to operate in the washing state until the washing pump cannot continue to pump washing water, which indicates that the washing process is finished, and control the dishwasher to turn to a next state: and (5) running in a drainage state.
In one embodiment, in order to prevent the washing pump from being damaged by idle running of the washing pump, the time of the dishwasher in the washing state can be stored, a preset washing time Ts of the washing state of the dishwasher is set first, and the time Tr of the dishwasher running in the washing state is stored in real time when the dishwasher is washing; if the power is turned on again after the power is off in the washing process, the dishwasher is continuously controlled to operate in the washing state for Ts-Tr and then is switched into the drainage state.
In one embodiment, the control module is further configured to control the dishwasher to continue operating in the drain state after the dishwasher is powered up again and when the operating state of the dishwasher in the power failure state is determined to be the drain state. The drain state refers to a state in which the dirty washing water is drained after the washing state of the dishwasher is completed. Specifically, the drainage of the dishwasher can be controlled by starting the drainage pump, and after the drainage is finished, the dishwasher is shifted to the next stage for operation.
In one embodiment, in order to improve the cleaning effect of the dishwasher, a washing process of the dishwasher generally comprises a plurality of washing stages, and in the present embodiment, the washing process of the dishwasher comprises a pre-washing stage, a main-washing stage, a rinsing stage and a drying stage; wherein, the operation states of the dishwasher in the pre-washing stage, the main-washing stage and the rinsing stage include a water inlet state, a washing state and a water discharge state. That is, when the dishwasher operates in the pre-washing stage, water is first supplied, then washed and drained, and the pre-washing stage roughly washes the tableware to remove large residues and stains on the tableware; then entering a main washing stage, similarly, firstly feeding water, then washing and then draining water, wherein detergent such as dish washing powder and the like is added into the washing water in the main washing stage to achieve a better cleaning effect; after the main washing stage is finished, the washing stage is carried out, water is firstly added, then washing and water draining are carried out, and the cleaning agent remained on the tableware is washed by the cleaning water, so that the tableware is further cleaned; finally, a drying phase is carried out, in which the dishes in the dishwasher are dried, for example by means of a heating device or the like.
As can be seen from the washing stage of the dishwasher described in the above embodiments, the dishwasher has multiple water feeding, washing and draining actions during the washing process.
For the situation that the dishwasher is powered off and powered up again when in the drainage state, the washing stage of the dishwasher needs to be judged first, for example, if the drainage action of the dishwasher occurs in the prewashing stage, the dishwasher needs to enter the main washing stage after the prewashing stage is completed, and therefore, the dishwasher enters the water inlet state of the main washing stage after the drainage is finished. If the draining action of the dishwasher is in the rinsing stage, the dishwasher needs to enter the drying stage after the rinsing stage is finished, and the dishwasher does not need to enter water in the drying stage, so that the dishwasher enters the drying state instead of the draining state after the draining is finished.
It should be noted that the above-mentioned exemplary functional modules (including the control module, the detection module and the storage module, the presetting module, the judgment module, etc.) are used to indicate the functions of the devices described herein. However, it will be understood that the functions need not be divided in this manner. The functionality of one or more of the modules described may be further subdivided and/or distributed throughout the apparatus of the present application. In some embodiments, the functionality of one or more of the modules may be integrated in a single functional unit.
For example, the detection module may be divided into a power-down detection module and a power-up detection module, and may also be an integrated module having the above functions. For example, in one embodiment, the detection module may include:
the power failure detection module is used for detecting whether the running dish washing machine is powered down or not;
the power-on detection module is used for detecting whether the dish-washing machine is powered on again after power failure;
in another embodiment, the detection module may include:
and the electric detection module assembly is used for detecting whether the dishwasher in operation is powered down or not and whether the dishwasher after power down is powered up again or not.
A third aspect of the embodiments of the present invention provides a dishwasher supplying water based on a water tank, comprising a washing control device, wherein the washing control device is the washing control device of the dishwasher supplying water based on the water tank according to the second aspect of the embodiments of the present invention. The third aspect of the embodiment of the present invention provides a dishwasher with similar advantages to those of the aforementioned washing control device, and will not be described herein again.
Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the details of the above embodiments, and various simple modifications can be made to the technical solutions of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and these simple modifications all belong to the protection scope of the embodiments of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention do not describe every possible combination.
Those skilled in the art can understand that all or part of the steps in the method for implementing the above embodiments may be implemented by a program instructing related hardware, where the program is stored in a storage medium and includes several instructions to enable a (may be a single chip, a chip, etc.) or a processor (processor) to execute all or part of the steps of the method described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In addition, any combination of various different implementation manners of the embodiments of the present invention is also possible, and the embodiments of the present invention should be considered as disclosed in the embodiments of the present invention as long as the combination does not depart from the spirit of the embodiments of the present invention.
Claims (12)
1. A washing control method of a dishwasher supplying water based on a water tank, the operating state of the dishwasher including a water supply state, a washing state and a drain state, the method comprising:
storing operating parameters of the dishwasher in operation;
detecting whether a dishwasher in operation is powered down;
when the dishwasher is powered off, controlling the dishwasher to stand by;
detecting whether the dishwasher after power failure is powered on again;
after the dishwasher is powered on again, reading the operation parameters when the dishwasher is powered off, and determining the operation state when the dishwasher is powered off according to the operation parameters, so as to control the operation state when the dishwasher is recovered to be powered off to continue to operate;
the method further comprises the following steps:
setting a preset water inflow Ls of the water inlet state of the dish-washing machine;
storing the current water inflow Lr of the dishwasher when the dishwasher is in a water inflow state, wherein the water inflow of the dishwasher in the water inflow state is detected by a flow meter installed on a water pipe;
after the dish washing machine is powered on again, if the running state of the dish washing machine during power failure is determined to be a water inlet state, judging whether a difference Ls-Lr between a preset water inlet Ls and the current water inlet Lr is larger than 0;
and when the difference Ls-Lr between the preset water inflow Ls and the current water inflow Lr is greater than 0, controlling the dishwasher to continuously operate in a water inflow state until the difference Ls-Lr is equal to 0, and switching to a washing state, so that the water tank is reduced in volume while water resource waste is avoided, and the occupied space of the dishwasher is reduced.
2. The washing control method of a tank water supply based dishwasher according to claim 1, further comprising:
dividing the preset water inflow Ls into N equal parts, wherein N is more than or equal to 2, and N is a positive integer;
the storing of the current water inflow Lr of the dishwasher when the dishwasher is in a water inflow state includes: and detecting the water inflow when the dishwasher is in a water inflow state, and storing the water inflow when the dishwasher finishes one equal water inflow.
3. The washing control method of a tank water supply-based dishwasher according to claim 1, wherein the dishwasher is controlled to directly operate in a washing state when a difference Ls-Lr between the preset water inflow Ls and the current water inflow Lr is equal to 0.
4. The washing control method of a tank water supply based dishwasher according to claim 1,
and after the dishwasher is powered on again, if the running state of the dishwasher in power failure is determined to be a washing state, controlling the dishwasher to continuously run in the washing state.
5. The washing control method of a tank water supply based dishwasher according to claim 1,
and after the dishwasher is powered up again, if the running state of the dishwasher in power failure is determined to be the drainage state, controlling the dishwasher to continuously run in the drainage state.
6. A washing control device of a dishwasher supplying water based on a water tank, the operating state of the dishwasher including a water supply state, a washing state and a drain state, the device comprising:
the storage module is used for storing the operating parameters of the dishwasher in operation;
the detection module is used for detecting whether the running dish washing machine is powered off or not and whether the dish washing machine powered off is powered on again or not;
the control module is used for controlling the standby of the dishwasher when the dishwasher is powered off;
the control module is also used for reading the operating parameters when the dishwasher is powered off after the dishwasher is powered on again, and determining the operating state when the dishwasher is powered off according to the operating parameters, so as to control the operating state when the dishwasher is recovered to be powered off to continue to operate;
the device further comprises:
the setting module is used for setting a preset water inflow Ls of the water inlet state of the dishwasher;
the storage module is used for storing the current water inflow Lr of the dishwasher when the dishwasher is in a water inflow state, wherein the water inflow of the dishwasher in the water inflow state is detected through a flow meter arranged on a water pipe;
the judging module is used for judging whether a difference Ls-Lr between a preset water inflow Ls and a current water inflow Lr is greater than 0 or not when the dishwasher is powered on again and the running state of the dishwasher in power failure is determined to be a water inflow state;
the control module is used for controlling the dishwasher to continuously operate in a water inlet state when the difference Ls-Lr between the preset water inlet Ls and the current water inlet Lr is larger than 0, and the dishwasher is switched to a washing state until Ls-Lr is 0, so that the water resource is avoided being wasted, the volume of the water tank is reduced, and the occupied space of the dishwasher is reduced.
7. The washing control device of a tank water supply-based dishwasher according to claim 6, wherein the detection module comprises:
the power failure detection module is used for detecting whether the running dish washing machine is powered down or not;
the power-on detection module is used for detecting whether the dish-washing machine is powered on again after power failure; or the like, or, alternatively,
the detection module comprises:
and the electric detection module assembly is used for detecting whether the dishwasher in operation is powered down or not and whether the dishwasher after power down is powered up again or not.
8. The washing control device of a tank water supply-based dishwasher according to claim 6,
the setting module is also used for dividing the preset water inflow Ls into N equal parts, wherein N is more than or equal to 2, and N is a positive integer;
the storing of the current water inflow Lr of the dishwasher when the dishwasher is in a water inflow state includes: and detecting the water inflow when the dishwasher is in a water inflow state, and storing the water inflow when the dishwasher finishes one equal water inflow.
9. The washing control device of a tank water supply-based dishwasher of claim 6, wherein the control module is further configured to control the dishwasher to directly operate in a washing state when a difference Ls-Lr between the preset water inflow Ls and the current water inflow Lr is equal to 0.
10. The washing control device of a dishwasher supplying water based on a water tank as claimed in claim 6 or 7, wherein the control module is further configured to control the dishwasher to continue to operate in the washing state after the dishwasher is powered up again and when the operation state of the dishwasher in power down is determined to be the washing state.
11. The washing control device of a dishwasher supplying water based on a water tank as claimed in claim 6 or 7, wherein the control module is further configured to control the dishwasher to continue to operate in the drain state after the dishwasher is powered up again and when it is determined that the operation state of the dishwasher in the power down state is the drain state.
12. A dishwasher supplied with water on a tank, comprising a washing control device, characterized in that the washing control device is a washing control device of a dishwasher supplied with water on a tank according to any one of claims 6 to 11.
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| CN111110130B (en) * | 2018-10-30 | 2023-07-25 | 宁波方太厨具有限公司 | Self-adaptive cleaning method and system for dish washer |
| CN110037637A (en) * | 2019-03-14 | 2019-07-23 | 佛山市百斯特电器科技有限公司 | A kind of dish-washing machine power down process method |
| CN109932998A (en) * | 2019-03-19 | 2019-06-25 | 上海烟草集团有限责任公司 | A kind of packing machine operating parameter restoration methods and system |
| CN112220423B (en) * | 2020-09-29 | 2022-03-18 | 宁波方太厨具有限公司 | Dish washing machine water inlet control method and dish washing machine |
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Effective date of registration: 20230627 Address after: 241000 west side of 3 / F, No.5 office building, new energy and new materials gathering area, Fuzhou Road, Jiangbei District, Wuhu City, Anhui Province Patentee after: Wuhu Midea intelligent kitchen electricity Manufacturing Co.,Ltd. Address before: 528300 R & D center of Midea washing appliance manufacturing Co., Ltd., No.20 Gangqian Road, Beijiao Town, Shunde District, Foshan City, Guangdong Province Patentee before: FOSHAN SHUNDE MIDEA WASHING APPLIANCES MANUFACTURING Co.,Ltd. Patentee before: MIDEA GROUP Co.,Ltd. |
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