KR20060118654A - Water level sensing method and control method of purifier - Google Patents

Abstract

A method for sensing a water level of a water tank, which calculates accurate water level data, thereby prevents misoperation of a water purifier by maintaining a delay time when calculating water level data by sensing the water level of the water tank, and a method for controlling the water purifier are provided. A method for sensing a water level of a water tank comprises: a sensing step of receiving a sensed water level of the water tank; a determination step of determining whether the water level is maintained or not during a delay time; and a step of calculating the water level as a water level value when the water level is maintained. The method further comprises a level determination step prior to the determination step to determine which level of the at least two levels is the water level by deciding at least two levels as the water level, wherein the delay time is differently applied to the respective levels in the determination step. The method comprises a resetting step prior to the determination step to reset delay times of respective levels except the determined level.

Description

Water level sensing method and control method of purifier {water level sensing method and control method of purifier}

1 is a block diagram of a water purifier equipped with a pressure switch according to a preferred embodiment of the present invention.

2 is a water level detection flowchart according to a preferred embodiment of the present invention.

3 is an A / D CONERSION flowchart according to a preferred embodiment of the present invention.

** Description of symbols for the main parts of the drawing **

220: filter 340: electrolytic cell solenoid valve

400: electrolytic cell 501: refrigerant tank

502: refrigerant coil 520: hot water tank assembly

540: hot water safety solenoid valve 560: alkali cold water pipe

580: alkali hot water pipe 620: coke

970 pressure switch 980 alkali water pipe

800: drain solenoid valve 900: acidic water solenoid valve

910: refrigerant tank solenoid valve 930: refrigerant tank

940: cold water solenoid valve 950: normal temperature solenoid valve

960: hot water solenoid valve 990: room temperature water pipe

The present invention relates to a water level detection method and a water purifier control method of a water tank, and more particularly, to a water level detection method and a water softener control method of a water tank capable of recognizing accurate data by minimizing environmental impact by giving a delay time when detecting a water level. will be.

Due to the recent environmental problems such as water quality, air, and soil caused by the recent industrial development, general households and offices purify the water by the filter as a means to provide clean drinking water, and thus select the purified water. Cooling or heating according to the cold, hot water to be supplied to the hot water is a situation that is widely used.

As such a water purifier, there is one such as that disclosed in Korean Patent Laid-Open Publication No. 2004-0110319.

A water tank such as a water purifier is equipped with a water level sensor to detect the water level and control each operating device of the water purifier.

As such a water level sensor, it is proposed in the publication of Korean Patent Laid-Open No. 2000-0030618.

However, when the water level is detected, when the wrong data is detected, there is a problem that the water purifier may malfunction due to the wrong data.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and the object of the present invention is to provide a water level detection method and a water purifier control method for recognizing accurate data by minimizing environmental impact by giving a delay time when detecting a water level. .

Water level detection method and water purifier control method of the water tank of the present invention for achieving the above object is a sensing step of receiving the detected water level of the water tank, determining whether the water level is maintained for a delay time, and the water level is maintained And calculating the water level as the water level value.

According to this configuration, it is possible to recognize the correct data by minimizing the environmental impact by giving a delay time when detecting the water level.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

For reference, among the configurations of the present invention to be described below, the same configuration as the prior art will be referred to the above-described prior art, and a detailed description thereof will be omitted.

1 is a block diagram of a water purifier equipped with a pressure switch.

As shown in Figure 1, the water purifier with a pressure switch of the present embodiment, the filter 220 for filtering and purifying the raw water largely, the solenoid valve for controlling the flow of purified water passed through the filter 220, Coke 620 through which the purified water passed through the solenoid valve is discharged, a pressure switch 970 disposed in a flow path between the solenoid valve and the cock 620, and a signal of the pressure switch 970 to the solenoid valve. It is made up of sending control unit.

Detailed description of the configuration overlapping with the conventional ionizer will be omitted.

When a voltage is applied to the electrode of the electrolytic cell 400 for a predetermined time or more in order to withdraw the ionized water, the scale is fixed to the electrode plate and requires automatic cleaning. To this end, the electrolytic cell 400 may be provided with a flow path changing motor for changing the flow path to the phase angle of 180 degrees in the outlet pipe connected to each chamber.

The driving method for the flow path changing motor is referred to Korean Patent Laid-Open Publication No. 2004-0108296, and a detailed description thereof will be omitted.

Furthermore, it is preferable that the coolant tank assembly is provided to cool the alkaline ionized water generated from the electrolytic cell 400 to provide alkali cold water.

 In the coolant tank assembly, an alkali cold water pipe 92 containing alkaline water passes through the coolant tank 501, and a coolant coil 502 for cooling the water inserted into the coolant tank 501 in the coolant tank 501. Is inserted. Both ends of the refrigerant coil 502 is connected to the cooling means.

On the other hand, it is preferable to provide an agitator (not shown) to stir the water in the coolant tank 501, to prevent the phenomenon of ice in the coolant tank 501 and to maintain a constant temperature of the water in the pipe.

Here, the water inserted into the refrigerant tank 501 is supplied to the water through the refrigerant tank tube 930 when the refrigerant tank water supply solenoid valve 910 is opened.

Thus, the alkaline water in the alkali cold water pipe 560 passing through the refrigerant tank 501 is cooled.

Alkaline normal temperature water generated in the electrolytic cell 400, the flow is controlled by an alkaline water supply solenoid valve installed after the electrolytic cell 400, the alkali normal temperature water is refrigerant through the alkali cold water pipe 560 when the cold water solenoid valve 940 is opened. It is transferred to the bath assembly, cooled, and discharged.

Alkaline normal temperature water formed in the electrolytic cell 400 and the filter 220, the filter 220, the room temperature constant is controlled by the normal temperature solenoid valve 950.

The room temperature water pipe 990 which transfers the room temperature water is joined between the pressure switch 970 and the refrigerant water tank assembly, thereby providing alkali room temperature water, alkali cold water, and room temperature constant water through one coke 620.

In addition, a hot water tank assembly 520 for heating and storing the alkaline ionized water generated from the electrolytic cell 400 may be provided to provide alkaline hot water.

The alkaline room temperature water is transferred through the alkali hot water pipe 580 and then warmed in the hot water tank assembly 520 and then stored and discharged into the alkaline hot water.

Solenoid valves for controlling the flow of purified water may be further provided on each flow path in order to selectively and efficiently withdraw each functional water.

In addition, the cock 620 is provided to the water can be withdrawn.

The pressure switch 970 may be installed after the point where the room temperature water pipe 990 joins, and may be installed in the alkaline water pipe 980 through which the alkali room temperature water and the room temperature purified water and the alkaline cold water are transferred.

 In addition, a control unit (not shown) for transmitting a signal of the pressure switch 970 to the solenoid valve is provided.

The pressure switch 970 is preferably a low pressure cutoff switch.

For a specific operating mechanism for the low pressure cut-off switch, reference is made to the publication of No. 20-0294986, and only the characteristic effects of the present invention will be described.

The low pressure shutoff switch switches using the low pressure of the liquid, and more specifically, the low pressure shutoff switch by controlling the flow-related device such as the solenoid valve by operating the switch using the pressure of the flowing liquid installed in the middle of the liquid flow. It automatically adjusts the flow of liquid according to the pressure set in.

When the user presses the button of the desired number of functions, the control unit waits for on / off of the solenoid valve concerned.

At this time, when the coke 620 is opened and the pressure in the pipe is lowered, a signal is input to the pressure switch 970 and the signal is transmitted to the related solenoid in the waiting state, and the function water is discharged while opening the solenoid.

On the other hand, when the coke 620 is closed and a high pressure is sensed and the signal of the pressure switch 970 is cut off, the related solenoid valve which is open is closed and supply of the functional water is stopped.

In this way, the water purifier opens and closes the solenoid valve associated with each functional water as the coke 620 is opened and closed, so that the functional water is immediately generated and discharged when necessary.

The operation of this embodiment having the above-described configuration will be described below.

2 is a flowchart illustrating a method for detecting a water level in a tank according to a preferred embodiment of the present invention.

As shown in FIG. 2, the water level detecting method and the water purifier control method of the present embodiment include a sensing step of receiving the detected water level of the water tank (S11), and a determining step of determining whether the water level is maintained for a delay time ( S17, S27, and S37), and calculating the water level as a water level value when the water level is maintained.

The capacitive sensor detects the low, high and full water tanks through the three electrode rods, and receives the detected water level (S11).

The water tank may be a refrigerant tank 501 provided with a stirrer.

FIG. 3 is an A / D conversion flowchart applied to FIG. 2.

As shown in FIG. 3, a determination step (S1) of determining whether the A / D conversion is completed, a step of reading the A / D (S3), and a step of determining whether the accumulated number of A / D data is greater than or equal to a predetermined value. (S5) and averaging the accumulated A / D data if the predetermined value or more (S7), and accumulating the read A / D to the A / D data if the predetermined value or less (S9).

Thus, in the sensing step, the average value of the A / D values detected more than a predetermined number of times is received.

The level is determined at least two or more levels to determine which of the levels.

In this embodiment, it is not necessary to set the level separately by detecting the water level as low water, high water, and high water through three electrode rods, and it is necessary to determine whether the detected water level is low water, high water, high water. (S13, S23, S33)

Subsequently, the delay time of each level except for the determined level is reset. (S15, S25, S35) For example, if it is determined that the water is low, the high water and the high water delay time are reset.

By using an agitator (not shown) in the coolant tank 501, a large amount of water flows in the coolant tank 501, which causes a lot of water level fluctuations, which makes it difficult to accurately measure the water level data.

Therefore, if the water level of the coolant tank 501 is detected and the detected data is calculated as the water level data, the wrong water level data is output, and it is determined whether the water level is maintained for the delay time. (S17, S27, S37)

Here, the determination of whether the water level is maintained may include detecting the water level after the delay time and determining whether the water level is the same as the detected water level, or continuously detecting the water level during the delay time so that the first detected water level value remains the same. It can be determined by judging whether it is maintained.

In this case, the delay time may be appropriately set by setting each level.

On the other hand, the delay time is applied for each level according to the value calculated through the experiment in the case of reservoir, coriander, full water in consideration of the size of the tank and the size of the stirrer.

If the water level is maintained, the water level is calculated as a water level value and stored as water level data (S41).

If the water level is not maintained, return to the first step and repeat the step.

Further, when the water level value of the refrigerant tank 501 is low, it is preferable to control the water purifier so as to issue a compressor start stop command so as to efficiently manage the system.

Thus, accurate water level data can be calculated to prevent malfunction due to incorrect data.

As described above, although described with reference to a preferred embodiment of the present invention, those skilled in the art various modifications or variations of the present invention without departing from the spirit and scope of the invention described in the claims below Can be carried out.

According to the water level detection and water purifier control method of the water tank of the present invention as described above, there are the following effects.

By detecting the water level of the water tank and giving the delay time when calculating the water level data, it is possible to prevent the malfunction of the water purifier by calculating the correct water level data.

Claims (5)

A sensing step of receiving a sensed level of the tank; A determination step of determining whether the water level is maintained for a delay time; And calculating the water level as a water level value when the water level is maintained. The method of claim 1, Prior to the determining step, further comprising a level determination step of determining which level of the level by determining at least two or more levels of the water level, The water level detection method of the tank, characterized in that for giving the delay time different for each level in the determining step. The method of claim 2, Prior to the determination step, the water level detection method of the tank characterized in that it comprises a reset step for resetting the delay time of each level except the determined level. The method according to any one of claims 1 to 3, The water level input in the sensing step is a water level detection method of the tank, characterized in that the average value of the values detected by the sensor more than a predetermined number of times. A sensing step of receiving a sensed water level of the refrigerant tank in which the stirrer is installed; A determination step of determining whether the water level is maintained for a delay time; Calculating the water level as a water level value if the water level is maintained; And stopping the compressor when the water level value is calculated to be a low water level.

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