JP3960107B2 - Alkaline ion water conditioner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an alkali ion water conditioner that electrolyzes raw water such as tap water to produce alkaline ionized water used for beverages and medical purposes, and acidic ionized water used as skin lotion, sterilization washing water, etc. It is.
[0002]
[Prior art]
In recent years, alkali ion water conditioners have become widespread as continuous electrolysis type ion water generators. This alkaline ion adjuster electrolyzes tap water or the like in an electrolytic cell to generate acidic ion water on the anode side and alkaline ion water on the cathode side.
[0003]
A conventional continuous electrolysis type alkaline ion water conditioner will be described below.
[0004]
FIG. 3 is a schematic configuration diagram of a conventional alkaline ionized water device.
[0005]
As shown in FIG. 3, a conventional continuous electrolysis type alkaline ion water purifier includes a raw water pipe 1 such as tap water, a faucet 2, and an alkali ion water conditioned connected to the raw water pipe 1 via the faucet 2. A water purifier 4 for purifying the raw water, a flow rate sensor 5 for informing a control unit (to be described later) of the water flow rate, a calcium supply unit 6 for imparting calcium ions such as calcium to the raw water to increase conductivity, and a flow rate Electrolyzer 7 that electrolyzes water that has passed through sensor 5 and calcium supply unit 6, diaphragm 8 that divides electrolyzer 7 into two to form an electrode chamber, and each electrode chamber that is divided into two by diaphragm 8 A power supply for supplying electricity from a commercial power source, comprising electrode plates 9 and 10 disposed on the surface, a water flow pipe 11 for passing water on the electrode plate 10 side, and a water discharge pipe 12 for discharging water on the electrode plate 9 side. The plug 13 for charging and the commercial power supply are rectified for electrolysis and control A power source unit 14 for making a necessary DC power source, an electrolysis output unit 15 for outputting power to the electrolytic cell 7, an electrolysis current detection circuit 16 and an electrolysis voltage detection circuit 17 for detecting a current value and a voltage value at the time of electrolysis output, While monitoring the values of the electrolysis current detection circuit 16 and the electrolysis voltage detection circuit 17 based on the setting of the operation display unit 18 in which the user selects the strength of electrolysis and acidic water or alkaline ion water, and the operation display unit 18. The control unit 19 is configured to control the electrolytic output.
[0006]
Next, the operation | movement at the time of producing | generating alkali ion water is demonstrated about the conventional continuous electrolysis type alkali ion water adjuster comprised as mentioned above.
[0007]
The user presses the mode selection button of the operation display unit 18 to select the alkali ion water generation mode or the acidic ion water generation mode and the required pH value range, and opens the faucet 2. The raw water passed through the faucet 2 is purified by the water purification unit 4, passed through the flow rate sensor 5, calcium and the like are dissolved in the calcium supply unit 6, processed into water that is easily electrolyzed, and then passed through the electrolytic cell 7. Watered.
[0008]
On the other hand, AC100V, which is a commercial power supply, is supplied from the power-on plug 13 to generate a DC voltage / current required for electrolysis by a transformer and a rectifier circuit in the power supply unit 14, and in accordance with instructions from the control unit 19, an electrolytic output unit 15, electric power necessary for electrolysis is supplied to the electrode plates 9 and 10 of the electrolytic cell 7. At this time, if an electrode plate to which a positive voltage is applied relatively is an anode and an electrode plate to which a negative voltage is applied is a cathode, an anode chamber and a cathode chamber partitioned by a diaphragm 8 are formed in the electrolytic cell 7. In the alkaline ion water generation mode, the electrode 10 serves as an anode and the electrode plate 9 serves as a cathode. In the acidic ion water generation mode, the electrode plate 9 serves as an anode and the electrode plate 10 serves as a cathode.
[0009]
Now, after passing water, the control part 19 will read the signal of the flow sensor 5, and will judge that this state is underwater if the level of a signal exceeds a fixed amount. At this time, since the electrolysis conditions are already set by the generation mode of the operation display unit 18 and the pressing of the pH value range selection button, the control unit 19 applies the electrolysis in the electrolytic cell 7 to the electrode plates 9 and 10. An operation command is output to the electrolysis output unit 15 so that a predetermined voltage is applied. Thus, in the alkaline ion water generation mode, the electrode plate 9 serves as a cathode and the electrode plate 10 serves as an anode, and alkaline ion water is discharged from the water discharge pipe 12, and in the acidic ion water generation mode, the electrode plate 9 serves as an anode and an electrode. The plate 10 serves as a cathode, and acidic ion water is discharged from the water discharge pipe 12. When the raw water is stopped by the faucet 2, the signal level of the flow sensor 5 falls below a certain amount, the control unit 19 determines that the water is stopped, and the electrolysis output unit 15 transfers the electrode plates 9 and 10 of the electrolytic cell 7. Stop the voltage application.
[0010]
Here, in the alkaline ionic water generation mode and the acidic ionic water generation mode, the control unit 19 supplies the DC voltage generated in the electrolysis output unit 15 to the electrode plates 9 and 10 of the electrolytic cell 7. When a constant DC voltage is supplied to the electrode plates 9 and 10, the current flowing between the electrode plates 9 and 10 changes depending on the quality of raw water and the flow rate of water, and the generated pH value also changes. Therefore, in order to keep the pH value constant, it is necessary to detect changes in the current and the amount of water by the electrolytic current detection circuit 17 and the flow sensor 5 and apply an electrolytic current corresponding to the signal level detected by the flow sensor 5. . For this purpose, there is a method of controlling the supply time of the DC voltage supplied to the electrode plates 9 and 10 of the electrolytic cell 7 at a constant cycle, that is, controlling the electrolysis by varying the so-called duty, which is detected by the electrolytic current detection circuit 17. If the electrolysis current value does not reach the electrolysis current value in the pH value range required by the user, the electrolysis current is increased by increasing the duty or the electrolysis current detected by the electrolysis current detection circuit 16. If the value exceeds the electrolysis current value of the pH value range required by the user, the electrolysis current is decreased by lowering the duty and the control unit 19 adjusts the pH value range required by the user. Control with instructions. The voltage detected by the voltage detection circuit 17 is determined in advance as a voltage upper limit value for approaching the pH target value in each range when the electrical conductivity of the raw water is low and current does not easily flow. It is for controlling not to apply.
[0011]
[Problems to be solved by the invention]
In the above-described conventional continuous electrolysis type alkaline ion water conditioner, the electrolysis output control is such that the DC power supply voltage is turned on and off at a constant cycle. In order to accurately detect the electrolysis current in such a state, the electrolysis current is converted into a voltage signal, and the converted voltage waveform is averaged by slowing the on and off signals using a capacitor or the like in the electrolysis current detection circuit section. Detected. However, in order to perform averaging so as to obtain a smooth waveform, it is necessary to increase the capacitance of the capacitor of the sampling circuit in the electrolytic current detection circuit 17 to some extent or increase the resistance value of the limiting resistor. By increasing the resistance value of the capacitor and the limiting resistor, the change in the detected signal waveform is delayed, and the response of the electrolytic output control tends to be delayed.
[0012]
The present invention solves the above-mentioned conventional problems, can respond quickly to changes in the water flow rate or water quality at the start of water flow and water flow, and can stably supply ionic water having a required pH value. An object of the present invention is to provide a continuous electrolysis type alkaline ion water conditioner.
[0013]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the present invention is an alkaline ion water conditioner that electrolyzes raw water to generate alkaline ionized water and acidic ionized water, and according to an operation command from an operation display unit, A configuration in which an electrolytic current and a voltage value that change depending on the detected water flow rate and raw water quality are detected by the electrolytic current detection circuit and the electrolytic voltage detection circuit, and a discontinuous numerical code from the control unit is output to the electrolytic control circuit; It is a thing.
[0014]
According to the present invention, the feedback control of the electrolysis current and the electrolysis voltage necessary for producing ionic water having the target pH is made accurate and quick, and a more stable pH even when the quality of the raw water or the flow rate of water changes. Value ionic water can be produced.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
The invention described in claim 1 of the present invention is connected to a flow rate sensor capable of detecting a flow rate of water in a water passage, an electrolytic cell for electrolyzing raw water to generate alkali ion water or acidic ion water, and a commercial power source. A power supply unit with an output adjustment circuit inside for energization and output to the electrolytic cell, an electrolysis current detection circuit and an electrolysis voltage detection circuit for detecting current and voltage values in the energization output state, and current and voltage values in the energization output state A control unit that outputs a numerical code for controlling the power supply unit, a numerical code from the control unit is converted into a voltage output, and a D / A conversion circuit and a signal amplification circuit are provided therein. In an alkaline ionized water apparatus comprising an electrolysis control unit for determining a voltage output, an operation unit for giving an operation command to the control unit, and an operation display unit having a display unit for displaying an operation state, an operation command from the operation display unit West The electrolysis current value and the electrolysis voltage value, which vary depending on the flow rate detected by the flow sensor and the quality of the raw water, are detected by the electrolysis current detection circuit and the electrolysis voltage detection circuit, and according to the detected electrolysis current value and electrolysis voltage value. A numerical code from the control unit is output to the electrolysis control unit as an energization output to the electrolytic cell, converted into a voltage level corresponding to the numerical code by a D / A conversion circuit in the electrolysis control unit, and output adjustment in the power supply unit through a signal amplification circuit This is an alkaline ionized water regulator that outputs to the circuit and controls the energization output state to the electrolytic cell, and quickly changes the threshold value of the output voltage of the power supply circuit to change the energization output state to the electrolyzer. Thus, it has the effect of performing quick feedback control of the electrolysis current during electrolysis in the production of ionic water.
[0016]
According to a second aspect of the present invention, in the alkaline ionized water device according to the first aspect, the numerical code output from the control unit is changed at regular intervals, and is discontinuous. This has the effect of artificially creating a voltage output between the numerical code and the next numerical code.
[0017]
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0018]
(Embodiment 1)
FIG. 1 is a schematic configuration diagram of an alkaline ionized water device according to Embodiment 1 of the present invention, and FIG. 2 is a control block diagram of the alkaline ionized water device.
[0019]
In FIG. 1, the same reference numerals as those used in the description of the conventional technique are basically the same in the first embodiment, and the detailed description thereof will be omitted to the conventional technique. .
[0020]
In FIG. 1, 1 is a raw water pipe such as tap water, 2 is a faucet, 3 is an alkali ion water conditioner body of the present embodiment, 4 is a water purification unit, 5 is a flow sensor, 6 is a calcium supply unit, 7 is An electrolytic cell, 8 is a diaphragm, 9 and 10 are electrode plates, 11 is a water pipe, 12 is a water discharge pipe, and 13 is a power-on plug.
[0021]
1 and 2, reference numeral 20 denotes a power supply unit according to the first embodiment, which is a switching power supply circuit having an output adjustment circuit therein. 15 is an electrolysis output unit, 16 is an electrolysis current detection circuit, 17 is an electrolysis voltage detection circuit, 18 is an operation display unit, 19 is detected by the electrolysis current detection circuit 16 and the electrolysis voltage detection circuit 17 based on the setting of the operation display unit 18 The control unit controls the electrolysis output while monitoring the electrolysis current and the voltage value. The electrolysis voltage is controlled by a numerical code in the electrolysis control unit described later. An electrolysis control unit 21 converts a numerical code from the control unit into a voltage signal, and includes a D / A conversion circuit and a signal amplification circuit.
[0022]
The operation | movement at the time of producing | generating alkali ion water is demonstrated about the alkali ion water adjuster 3 of this Embodiment 1 comprised as mentioned above.
[0023]
The user presses the mode selection button of the operation display unit 18 to select the alkali ion water generation mode or the acidic ion water generation mode and the required pH value range, and opens the faucet 2. The raw water passed through the faucet 2 is purified by the water purification unit 4, passed through the flow rate sensor 5, calcium and the like are dissolved in the calcium supply unit 6, processed into water that is easily electrolyzed, and then passed through the electrolytic cell 7. Watered.
[0024]
On the other hand, AC 100 V, which is a commercial power supply, is supplied from the power-on plug 13, DC voltage is converted by a transformer and a rectifier circuit in the power supply unit 20, and a DC voltage current necessary for electrolysis is generated by an output adjustment circuit. At that time, the control unit 19 outputs a predetermined numerical code to the electrolysis control unit 21, converts it to a voltage level corresponding to the numerical code by the D / A conversion circuit in the electrolysis control unit 21, and converts the voltage level into the power supply unit 20 through the signal amplification circuit. The electrolytic voltage signal is output to the output adjustment circuit. The DC voltage and current necessary for electrolysis in the output adjustment circuit in the power supply unit 20 is supplied with electric power necessary for electrolysis to the electrode plates 9 and 10 of the electrolytic cell 7 through the electrolysis output unit 15. At this time, if an electrode plate to which a positive voltage is applied relatively is an anode and an electrode plate to which a negative voltage is applied is a cathode, an anode chamber and a cathode chamber partitioned by a diaphragm 8 are formed in the electrolytic cell 7. In the alkaline ion water generation mode, the electrode plate 10 serves as an anode and the electrode plate 9 serves as a cathode. In the acidic ion water generation mode, the electrode plate 9 serves as an anode and the electrode plate 10 serves as a cathode.
[0025]
Now, after passing water, the control part 19 reads the signal of the flow sensor 5, and will judge that this state is underwater if the flow level exceeds a fixed amount. At this time, since the electrolysis conditions have already been set by pressing the generation mode selection button of the operation display unit 18, the control unit 19 performs electrolysis in the electrolytic cell 7, so that a predetermined voltage is applied to the electrode plates 9 and 10. A predetermined numerical code is output to the electrolysis control unit 21 so as to be applied, an electrolysis output command is given to the electrolysis output unit 15, and voltage application to the electrode plates 9 and 10 of the electrolytic cell 7 is started. Thus, in the alkaline ion water generation mode, the electrode plate 9 serves as a cathode and the electrode plate 10 serves as an anode, and alkaline ion water is discharged from the water discharge pipe 12, and in the acidic ion water generation mode, the electrode plate 9 serves as an anode and an electrode. The plate 10 serves as a cathode, and acidic ion water is discharged from the water discharge pipe 12. When the raw water is stopped by the faucet 2, the control unit 19 determines that the water is stopped by a signal from the flow sensor 5, and stops the voltage application from the electrolytic output unit 15 to the electrode plates 9 and 10 of the electrolytic cell 7.
[0026]
Here, in the alkaline ionic water generation mode and the acidic ionic water generation mode, the control unit 19 supplies the DC voltage generated in the electrolysis output unit 15 to the electrode plates 9 and 10 of the electrolytic cell 7. When a constant DC voltage is supplied to the electrode plates 9 and 10, the electrolytic current flowing between the electrode plates 9 and 10 changes depending on the quality of raw water and the flow rate of water, and the generated pH value also changes. In such a state, in order to keep the pH value constant, changes in the electrolysis current and water flow rate are detected by the electrolysis current detection circuit 16 and the flow sensor 5, and electrolysis corresponding to the signal level detected by the flow sensor 5 is performed. It is necessary to apply a current.
[0027]
Therefore, the control unit 19 issues an electrolytic output command to the electrolytic output unit 15 so that a predetermined voltage is applied to the electrode plates 9 and 10 in order to perform electrolysis in accordance with the pH value range set in the electrolytic cell 7. At this time, the numerical code signal for setting the electrolysis voltage is updated and output to the electrolysis control unit 21.
[0028]
The electrolysis control unit 21 converts the updated numerical code signal from the control unit 19 into a voltage signal by the D / A conversion circuit, and transmits the voltage signal to the power supply unit 20 through the signal amplification circuit. The power supply unit 20 controls the power supply output adjustment circuit so as to output electric power according to the signal from the electrolysis control unit 21, and the electrolytic current value detected by the electrolytic current detection circuit 16 is the pH value required by the user. If the electrolysis current value for generating the electrolysis current is not reached, the numerical value code for the electrolysis control unit is increased by one rank to increase the electrolysis voltage, or the electrolysis current is increased, or the electrolysis current detected by the electrolysis current detection circuit 16 If the value exceeds the electrolysis current value that generates the pH value required by the user, the numerical value code to the electrolysis control circuit is lowered by one rank, and the electrolysis voltage is lowered to reduce the electrolysis current and the user needs Control is performed according to an instruction from the control unit 19 so as to match the pH value range. Thereafter, in accordance with the signal from the electrolysis control unit 21, the power supply unit 20 performs control so that power corresponding to the signal is output. Therefore, the power supplied to the electrolysis output unit 15 becomes stable.
[0029]
Note that the voltage detected by the electrolytic voltage detection circuit 17 is the same as that in the conventional technique, when the electric conductivity of raw water is low and it is difficult for current to flow, the upper limit value of each alkaline ion water generation mode or acidic ion water generation mode setting voltage is set. It is determined in advance and is controlled so as not to apply a voltage higher than that.
[0030]
Further, when voltage control finer than the resolution of the D / A converter circuit in the electrolysis control unit 21 is required, the target voltage value is exceeded by changing the numerical code output from the control unit 19 at regular intervals. A voltage output between a numerical code having a voltage and a numerical code having a voltage lower than the target voltage value can be created and controlled in a pseudo manner.
[0031]
For example, when the numerical code is 3 bits and the numerical code is 0 in 8 steps from 0 to 7, the electrolytic voltage is 5V, when the numerical code is 1, the electrolytic voltage is 10V, and when the numerical code is 2, the electrolytic voltage is 15V. When the value is 3, the electrolytic voltage is 20V, when the numerical code is 4, the electrolytic voltage is 25V, when the numerical code is 5, the electrolytic voltage is 30V, when the numerical code is 6, the electrolytic voltage is 35V, and when the numerical code is 7, the electrolytic voltage Is set to 40V, when an electrolysis voltage of 12V is required to output an electrolysis current value that secures the target pH range, the numerical code is set to 10 units of 1ms as one unit, and the first half 8 By repeating the output of the numerical code of 1 and the electrolytic voltage of 10V, and the latter two of the numerical code of 2 and the electrolytic voltage of 15V, a 12V electrolytic voltage can be created in a pseudo manner.
[0032]
Next, the electrolysis current value and electrolysis voltage value of the electrolysis current detection circuit 16 and the electrolysis voltage detection circuit 17 in the electrolysis output unit 15 of FIG. 2 will be described.
[0033]
By using the numerical code output control, when the DC power supply voltage (40V) is controlled to be turned on / off at a constant cycle, the on / off waveform is 0V to 40V, and the amount of change in the electrolytic current is large. In the case of control, the voltage level determined by the numerical code output immediately before is the difference between the voltage level determined by the next numerical code and the amount of change in the electrolytic current is small. As a result, in the circuit that detects the electrolytic current value and electrolytic voltage value signal by using a capacitor or the like, the capacitance of the sampling circuit capacitor can be reduced, and the resistance value of the limiting resistor can also be reduced. The change of the signal waveform to be performed becomes faster, and the response of the electrolytic output control becomes faster.
[0034]
【The invention's effect】
As is clear from the above description, according to the alkaline ionized water device of the present invention, it is possible to respond quickly to changes in water flow rate or water quality at the start of water flow and water flow, and alkali ions having a required pH value. Water or acidic ion water can be stably supplied, and the effect is great.
[Brief description of the drawings]
FIG. 1 is a schematic structural diagram of an alkaline ionized water device according to Embodiment 1 of the present invention. FIG. 2 is a block diagram of an electrolysis control circuit in the alkaline ionized water device. Structure [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Raw water pipe 2 Water faucet 3 Water purifier main body 4 Water purifier 5 Flow sensor 6 Calcium supply part 7 Electrolysis tank 8 Diaphragm 9, 10 Electrode plate 11 Water pipe 12 Water discharge pipe 13 Power supply plug 14 Power supply part 15 Electrolytic output part 16 Electrolytic current detection circuit 17 Electrolytic voltage detection circuit 18 Operation display unit 19 Control unit 20 Power supply unit 21 Electrolysis control unit

Claims (2)

A flow rate sensor that can detect the flow rate of water in the flow channel, an electrolytic cell that electrolyzes raw water to produce alkaline ionized water or acidic ionized water, and an internal output adjustment circuit that is connected to a commercial power source and supplies electricity to the electrolytic cell A power supply unit including: an electrolysis current detection circuit and an electrolysis voltage detection circuit for detecting a current and voltage value in an energization output state; and a numerical value for controlling the power supply unit based on the current and voltage value in the energization output state A control unit for outputting a code, an electrolytic control unit for converting a numerical code from the control unit into a voltage output, and having a D / A conversion circuit and a signal amplification circuit inside to determine a power supply voltage output of the power supply unit; In an alkaline ionized water apparatus having an operation display unit having an operation unit that issues an operation command to a control unit and a display unit that displays an operation state, the flow rate sensor of the flow rate sensor is configured according to the operation command from the operation display unit. The electrolysis current value and the electrolysis voltage value that change depending on the flow rate of the water flow and the quality of the raw water are detected by the electrolysis current detection circuit and the electrolysis voltage detection circuit, and applied to the electrolytic cell according to the detected electrolysis current value and electrolysis voltage value A numerical code from the control unit is output to the electrolysis control unit as an energization output, converted to a voltage level according to the numerical code by a D / A conversion circuit in the electrolysis control unit, and output to the output adjustment circuit in the power supply unit through the signal amplification circuit An alkaline ionized water device characterized by controlling the output state of electricity to the electrolytic cell. 2. The alkaline ionized water device according to claim 1, wherein the numerical code output from the control unit is changed at regular intervals.

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