TW202117083A - Electrolytic device - Google Patents

Abstract

The present invention comprises: an electrode unit that performs electrolysis on an electrolytic liquid to generate an active species; a current detector that detects the current flowing to the electrode unit; and a current integration unit that calculates the amount of integration of current to the electrode unit from the start of conduction of electricity. The current integration unit assesses the concentration of the active species on the basis of the calculated amount of integration of current. Specifically, the current flowing to the electrode unit is integrated up to a prescribed value. This makes it possible to provide an electrolytic device in which the concentration of a generated active species is fixedly set.

Description

Electrolysis device

The present invention relates to an electrolysis device that generates active species by electrolysis of an electrolyte.

In the past, for example, in Japanese Patent Laid-Open No. 2017-166789 (hereinafter referred to as "Patent Document 1"), etc., it is known that salt water is electrolyzed and hypochlorous acid is generated as an active species, thereby causing planktonic microorganisms such as bacteria and viruses. Deactivated device.

The device described in Patent Document 1 includes: an electrode unit that performs electrolysis; and a current detection unit that detects a peak current flowing in the electrode unit when the energization time starts. In addition, the device compares the value of the detected peak current with a predetermined threshold, and when the value of the peak current exceeds the predetermined threshold, it is determined that the salt concentration has exceeded the predetermined concentration. In this way, it is configured to urge the user to drain water.

In the above-mentioned conventional device configuration, when the salt concentration is excessive, the salt concentration can be detected. However, when the salt concentration is low, the current detection part cannot detect the salt concentration. Therefore, hypochlorous acid with a low salt concentration may be produced, and it may not be possible to deactivate floating microorganisms such as bacteria and viruses.

The present invention provides an electrolysis device that can make the concentration of the generated active species (hypochlorous acid, ozone, etc.) constant.

The electrolysis device of the present invention includes: an electrode unit that electrolyzes the electrolyte solution to generate active species; a power supply that energizes the electrode unit; a current detection unit that detects the current flowing in the electrode unit; and a current accumulation unit that calculates the energization from the counter electrode unit The cumulative amount of current from the beginning. The current accumulation unit judges the concentration of active species based on the calculated current accumulation.

According to the present invention, it is possible to provide an electrolytic device that keeps the concentration of the generated active species constant and exerts a good sterilization effect.

Hereinafter, an embodiment of the present invention will be described. In addition, the embodiments described below are all embodiments showing a specific example of the present invention. Therefore, the numerical values, the component elements, the arrangement positions of the component elements, and the connection forms shown in the following embodiments are only examples, and the purpose is not to limit the present invention. Accordingly, among the constituent elements in the following embodiments, the constituent elements that are not described in the independent claim representing the highest concept of the present invention are described as arbitrary constituent elements.

In addition, each figure is a schematic diagram, and it is not necessarily a figure shown strictly. Therefore, the scales etc. are not necessarily the same in each figure. In each figure, the same symbols are attached to substantially the same components, and repeated descriptions will be omitted or simplified. In addition, in the following embodiments, the expression "approximately" also includes manufacturing errors, dimensional tolerances, and the like.

Hereinafter, the embodiments of the present invention will be described with reference to the drawings. In addition, the present invention is not limited by this embodiment. (Implementation form)

Hereinafter, the electrolysis device in the embodiment of the present invention will be described with reference to FIG. 1.

Fig. 1 is a configuration diagram of an electrolysis device in an embodiment of the present invention.

As shown in FIG. 1, the electrolysis apparatus of this embodiment includes an electrode unit 1, a current detection unit 2, a control unit 3, a notification unit 4, a power conversion circuit 5, a power source 6, and the like.

The electrode unit 1 is composed of at least two electrodes A1a and B1b. The electrodes A1a and B1b of the electrode unit 1 are used to generate hypochlorous acid, ozone, etc., as active species. The active species generated by the electrode unit 1 functions to deactivate bacteria, viruses, etc., for example.

The current detection unit 2 is configured using, for example, a shunt resistance or a Hall element, and detects the current flowing in the electrode unit 1.

The control unit 3 includes a peak current determination unit 3a, a current integration unit 3b, and the like constituting the determination unit.

The peak current determination unit 3a includes a first predetermined threshold that is a determination criterion, that is, a predetermined lower limit threshold, and a second predetermined threshold, that is, a predetermined upper threshold. The peak current determination unit 3a compares the current value obtained by the current detection unit 2 with the above-mentioned threshold value. In addition, when the acquired current value is higher than the upper limit threshold value or lower than the lower limit threshold value, the peak current determination unit 3a determines that the electrolysis device is operating abnormally.

Hereinafter, an example of the waveform of the electrode current flowing through the electrode unit 1 determined by the peak current determination unit 3a will be described with reference to FIG. 3.

FIG. 3 is a schematic diagram showing the waveform of the electrode current flowing in the electrode unit 1 caused by the difference in the concentration of the electrolyte of the electrolysis device. In addition, FIG. 3 illustrates the waveform of the current value B when the concentration of the electrolyte is high, and the waveform of the current value C when the concentration of the electrolyte is low.

As shown in the current value B in FIG. 3, if the concentration of the electrolyte is high, the peak current value of the current flowing in the electrode unit 1 will increase immediately after the energization starts. On the other hand, as for the current value C shown in FIG. 3, if the concentration of the electrolyte is low, the peak current value of the current flowing in the electrode unit 1 will decrease immediately after the energization starts.

In addition, the conductivity of the electrolyte varies with the temperature of the electrolyte. Therefore, immediately after the energization starts, the magnitude of the peak current value of the current flowing in the electrode unit 1 will be different immediately. Therefore, the peak current determination unit 3a detects the value of the peak current flowing in the electrode unit 1 during the period from the start of energization to the elapse of time A. In this way, the conductivity that shows the conductivity of the electrolyte is detected.

When the peak current value determined by the peak current determination unit 3a is within the range of the upper limit threshold and the lower limit threshold, the current integration unit 3b accumulates until the current flowing in the electrode unit 1 reaches a predetermined value (current integration value).

Hereinafter, the timing chart showing the waveform of the electrode current caused by the difference between the accumulated current of the electrode of the electrolysis device and the power supply voltage will be described with reference to FIGS. 4 and 5.

Fig. 4 is a timing chart showing the accumulated current of the electrodes of the electrolysis device. Fig. 5 is a timing chart showing the waveform of the electrode current caused by the difference in the power supply voltage of the electrolysis device.

As shown in Figure 4, when the electrode current is large, it will take a short energization time (D1) to reach the predetermined current integrated value. On the other hand, when the electrode current is small, it will take a longer energizing time (D3) to reach the predetermined current integration value.

At this time, as shown in FIG. 5, the current accumulation unit 3b accumulates until the current flowing in the electrode unit 1 from the start of energization becomes a predetermined accumulated value. Then, when the value accumulated by the current accumulation unit 3b becomes a predetermined accumulation value, the control unit 3 stops the energization of the electrode unit 1. In this way, the concentration of the active species generated by the electrolysis device is kept constant. At the same time, the control unit 3 activates the notification unit 4 to notify the user that the electrolysis device is usable.

That is, when the predetermined integrated current value is reached, the control unit 3 stops the energization of the electrode unit 1. Therefore, even if the magnitude of the current flowing in the electrode unit 1 is different due to the concentration of the electrolyte or the size of the power source 6, the concentration of the generated active species can be kept constant.

In addition, when a primary battery or a secondary battery is used as the power source 6, even if the concentration of the electrolyte is the same, there will still be a difference in electrode current depending on the state of the battery (for example, voltage). Thereby, the electrolysis time until the electrolysis operation stops will be different. Therefore, the control unit 3 must perform control in consideration of the state of the battery.

The notification unit 4 will notify whether the electrolysis device may be used next time or whether the electrolysis device is abnormal after the electrolysis operation is stopped. In addition, in this embodiment, the notification part 4 is comprised using LED, for example. That is, it receives a signal from the control unit 3, and informs the user of the status of the electrolysis device by turning on or off the LED.

The power conversion circuit 5 performs step-up or step-down of the voltage supplied by the power source 6 based on the PWM signal from the control unit 3. Thereby, the predetermined voltage converted by the power conversion circuit 5 is applied to the electrode unit 1. As a result, the active species can be appropriately generated by the electrolysis device.

The power source 6 uses either a primary battery or a secondary battery, or commercial power (for example, 100V, 200V, etc.), to supply power to the power conversion circuit 5.

As described above, the electrolysis device of this embodiment is constituted.

Next, the control flow of the electrolysis apparatus of this embodiment will be described with reference to FIG. 2.

Figure 2 is a control flow chart of the same electrolysis device.

As shown in FIG. 2, first, the user turns on the power (ON) in order to put the electrolysis device into an operating state (step S01). Thereby, the control unit 3 of the electrolysis device starts the energization of the electrode unit 1 through the power supply 6 and the power conversion circuit 5 (step S02).

Next, the control unit 3 passes through the current detection unit 2 to detect the peak current value generated within the predetermined time A from the start of energization as shown in FIG. 3 (step S03).

Next, the control unit 3 uses the peak current determination unit 3a to determine whether the peak current value detected by the current detection unit 2 is greater than or equal to the current value C, which is a predetermined threshold, and less than or equal to the current value B (step S04). At this time, if the peak current value is within the predetermined range (Yes in step S04), the control unit 3 passes through the current integrating unit 3b and starts to accumulate the current value flowing between the electrodes of the electrode unit 1 (step S05).

On the other hand, if the peak current value does not reach the current value C or exceeds the current value B (No in step S04), the control unit 3 will determine that the state of the electrolysis device is abnormal, and stop the electrolysis operation. Then, the control unit 3 notifies the user of the abnormality of the electrolysis device through the notification unit 4 (step S08). Here, when the peak current value does not reach the current value C, since the concentration of the electrolyte is insufficient, the user is notified that the sterilization effect of the active species is insufficient. On the other hand, when the peak current value exceeds the current value B, the user is notified that the concentration of the electrolyte is excessive. Thereby, the operation of the electrolysis device that generates excess hypochlorous acid or ozone can be stopped in advance. As a result, the life of the electrodes of the electrode unit 1 can be extended. That is, in step S08, the control unit 3 transmits through the notification unit 4 to perform different notifications when the peak current value does not reach the current value C and when the current value B is exceeded. In this way, the user can more easily judge the condition of the electrolysis device.

Next, in step S05, after the current integration is started, the control unit 3 energizes through the electrode unit 1 until the accumulated current value reaches a predetermined integration value D (step S06). At this time, if the accumulated current value does not reach the predetermined accumulated value D (No in step S06), the accumulation operation will continue until the accumulated current value reaches the predetermined accumulated value D.

On the other hand, when the accumulated current value reaches the predetermined accumulated value D (Yes in step S06), the control unit 3 will determine that it has reached the predetermined concentration of the active species, and stop the electrolysis operation. Then, the control unit 3 notifies the user that the electrolysis device is usable through the notification unit 4 (step S07). In addition, the notification in step S07 is an action different from the two notifications in step S08 to notify the user. Specifically, for example, the notification of the change of the display color on the LED display or the notification by the sound difference.

As described above, in the electrolysis device of this embodiment, after the electrolysis operation is started, the control unit measures the peak current value at the time of energization through the current detection unit. This prevents deterioration of the electrode when the concentration of the electrolyte is excessive. In addition, it is possible to notify the user of the lack of sterilization effect when the concentration of the electrolyte is low at an appropriate point in time.

As described above, the electrolysis device of the present invention includes: an electrode unit that electrolyzes the electrolyte solution to generate active species; a current detection unit that detects the current flowing in the electrode unit; and a current accumulation unit that calculates from the start of energization of the power supply unit The cumulative amount of current. The current accumulation unit judges the concentration of active species based on the calculated current accumulation.

Thereby, the current flowing in the electrode unit is accumulated to a predetermined value. As a result, the concentration of the generated active species can be maintained constant.

In addition, the electrolysis device of the present invention further includes a notification unit, and the current integration unit shuts off the power supply when the calculated current integration reaches a predetermined value, and the notification unit provides notification.

Thereby, the electrolytic device can generate a constant concentration of active species. In addition, the user can be notified in a timely manner that the production of the active species has been completed.

In addition, the electrolysis device of the present invention includes: a current detection unit that detects the value of the peak current flowing in the electrode unit when energization of the electrode unit is started; and a determination unit that determines the electrolytic solution based on the value of the detected peak current The conductivity. When the judgment result of the judging unit is lower than the first predetermined threshold, the notification unit is used to notify.

Thereby, when the electrolyte shows a conductivity lower than a predetermined concentration, it is possible to appropriately notify the user that the active species has not reached a constant concentration.

In addition, the electrolysis device of the present invention includes: a current detection unit that detects the peak current value flowing in the electrode unit when the power supply unit starts; and a determination unit that determines the conductivity of the electrolyte based on the detected peak current value In addition, when the judgment result of the judging unit is higher than the second predetermined threshold value, it is notified by the notification unit.

Thereby, the user can be notified that the electrolyte is excessive in concentration, and the user can be urged to exchange the electrolyte in a timely manner.

1: Electrode unit 1a: Electrode A 1b: Electrode B 2: Current detection section 3: Control Department 3a: Peak current judging section 3b: Current integration part 4: Notification Department 5: Power conversion circuit 6: Power S01~S08: steps

Fig. 1 is a configuration diagram of an electrolysis device in an embodiment of the present invention.

Figure 2 is a control flow chart of the same electrolysis device.

Fig. 3 is a timing chart showing the waveform of the electrode current caused by the difference in the concentration of the electrolyte of the same electrolytic device.

Fig. 4 is a timing chart showing the current cumulative amount of the electrode current of the same electrolysis device.

Fig. 5 is a timing chart showing the waveform of the electrode current caused by the difference in the power supply voltage of the electrolysis device.

1: Electrode unit

1a: Electrode A

1b: Electrode B

2: Current detection section

3: Control Department

3a: Peak current judging section

3b: Current integration part

4: Notification Department

5: Power conversion circuit

6: Power

Claims (4)

An electrolysis device with: Electrode unit, electrolyze the electrolyte and generate active species; The current detection unit detects the current flowing in the aforementioned electrode unit; and The current integration unit calculates the current integration amount from the start of the energization of the aforementioned electrode unit, The current accumulation unit determines the concentration of the active species based on the calculated current accumulation. Such as the electrolysis device of claim 1, which is further equipped with a notification unit, When the calculated current integration amount reaches a predetermined value, the current accumulation unit shuts off the power supply and informs it by the notification unit. Such as the electrolysis device of claim 1 or 2, which has: The current detection unit detects the peak current flowing in the electrode unit when the energization of the electrode unit starts; and The judging part judges the conductivity of the electrolyte based on the value of the aforementioned peak current that has been detected, When the judgment result of the judgment unit is lower than the first predetermined threshold, the notification unit is used to notify. Such as the electrolysis device of claim 1 or 2, which has: The current detection unit detects the peak current flowing in the electrode unit when the energization of the electrode unit starts; and The judging part judges the conductivity of the electrolyte based on the value of the aforementioned peak current that has been detected, When the judgment result of the judgment unit is higher than the second predetermined threshold, the notification unit is used to notify.

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