JP2023123974A - Space purification device - Google Patents

Abstract

To provide a space purification device where an electrolysis acceleration tablet is additionally input at an appropriate timing.SOLUTION: A space purification device D includes: an electrolysis tank 14 in which an electrolysis accelerator and water are mixed; a water supply part 15 supplying water into the electrolysis tank 14; an electrode part 17 generating hypochlorous water from the electrolysis accelerator and the water mixed in the electrolysis tank 14; an electrolysis accelerator input part 25 putting the electrolysis accelerator into the electrolysis tank 14; a hypochlorous acid water sensor 26 detecting the concentration of the hypochlorous acid water in the electrolysis tank 14; and a control part 20 controlling input of the electrolysis accelerator by the electrolysis accelerator input part 25 on the basis of the concentration of the hypochlorous acid water in the electrolysis tank 14 detected by the hypochlorous acid water sensor 26.SELECTED DRAWING: Figure 6

Description

The present invention relates to a space purification device.

2. Description of the Related Art Conventionally, an electrolyzed water spraying device that electrolyzes water into which an electrolysis accelerator is added to generate electrolyzed water is known (Patent Document 1). In order to generate electrolyzed water, it is necessary to add an electrolysis accelerator to water to generate water containing chloride ions. Electrolyzed water such as hypochlorous acid water can be produced by electrolyzing water containing chloride ions. However, if electrolysis is continued, chloride ions will decrease and become deficient. Therefore, it is necessary to periodically add an electrolysis accelerator in order to eliminate the shortage of chloride ions. In the conventional electrolyzed water spraying device, when the electrification time for electrolysis exceeds the electrification time threshold, an instruction to add an electrolysis accelerator is given.

JP 2019-24811 A

However, there is a possibility that the timing at which the injection instruction of the conventional electrolysis accelerator is issued is not necessarily the timing at which chloride ions are insufficient. The higher the voltage or current for electrolysis, the shorter the time until chloride ions run out, and the lower the voltage or current for electrolysis, the shorter the time until chloride ions run out. is longer. In other words, there is a possibility that the injection timing of the conventional electrolysis accelerator is not given at an appropriate timing when chloride ions are insufficient.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to solve the above-described conventional problems, and to provide a space purifier capable of supplying an electrolysis accelerator at an appropriate timing when chloride ions are insufficient.

In order to achieve this object, an electrolytic cell for mixing an electrolysis accelerator and water, a water supply unit for supplying water to the electrolytic cell, and the electrolysis accelerator and water mixed in the electrolytic cell are: An electrode unit that generates chlorous acid water, an electrolysis accelerator input unit that inputs an electrolysis accelerator into the electrolytic cell, a hypochlorous acid water sensor that detects the concentration of hypochlorous acid water in the electrolytic cell, and hypochlorous acid and a control unit for controlling the injection of the electrolysis accelerator by the electrolysis accelerator injection unit based on the hypochlorous acid water concentration in the electrolytic cell detected by the acid water sensor, thereby achieving the desired purpose. It is something to do.

ADVANTAGE OF THE INVENTION According to this invention, the space purification apparatus which can throw in an electrolysis accelerator at the suitable timing when chloride ion is short can be provided.

1 is a perspective view of a space cleaning device according to an embodiment of the present invention; FIG. 1 is a perspective view of a space cleaning device according to an embodiment of the present invention with a panel opened; FIG. FIG. 3 is a cross-sectional view of the space purification device of FIG. 2 taken along the A plane; FIG. 3 is a cross-sectional view of the space purification device of FIG. 2 taken along the plane B; 1 is a schematic functional block diagram of a space purification device according to Embodiment 1 of the present invention; FIG. 4 is a flow chart showing a control procedure of a control unit according to Embodiment 1 of the present invention; FIG. 4 is a schematic functional block diagram of a space purification device according to Embodiment 2 of the present invention; 9 is a flow chart showing a control procedure of a control unit according to Embodiment 2 of the present invention;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. However, the embodiments shown below are examples for embodying the technical idea of the present invention, and the present invention is not limited to the following. In particular, the materials, shapes, constituent elements, arrangement and relative arrangement of constituent elements, etc. described in the embodiments are examples, and are not intended to limit the scope of the present invention. Moreover, in each figure, the same code|symbol is attached|subjected to the substantially same structure, and the overlapping description is abbreviate|omitted or simplified.

(Embodiment 1)
First, a space purification device D according to Embodiment 1 of the present invention will be described.

FIG. 1 is a perspective view of the space purification device D. FIG. FIG. 2 is a perspective view of the space purification device D with the panel 3 of FIG. 1 opened.

As shown in FIGS. 1 and 2, the space purification device D includes a body case 1. As shown in FIGS.

The main body case 1 is a substantially box-shaped box, and includes an intake port 2 , an air outlet 6 and a panel 3 .

The intake ports 2 are provided on both side surfaces of the main body case 1 and are grid-shaped openings for taking in air from outside the main body case 1 into the main body case 1 .

The air outlet 6 is provided on the back side of the top surface of the main body case 1 . The blowout port 6 is an openable opening for blowing out the air taken into the body case 1 from the air intake port 2 to the outside of the body case 1 . 1 and 2, the outlet 6 is in a closed state.

The panel 3 is provided on the main body side surface 1A, which is the right side surface of the main body case 1 when viewed from the front. The panel 3 is a cover that can be opened and closed, and is mainly made of plastic resin. The panel 3 has one of the two intake ports 2 on the front side of the body case 1 . The inside of the panel 3 becomes the inside of the body case 1 .

In addition, as shown in FIG. 2, the space purification device D includes a control section 20.

The control unit 20 controls the space purification device D, and details of the control will be described later.

FIG. 3 is a cross-sectional view of the space purification device D of FIG. 2 taken along plane A, and is a view of the space purification device D viewed from the right side. FIG. 3 shows the peripheral configuration and the like regarding generation of electrolyzed water.

As shown in FIGS. 2 and 3, a hypochlorous acid water generator 5 is provided inside the main body case 1 .

The hypochlorous acid water generating unit 5 includes an electrolytic bath 14 , an electrode unit 17 , and an electrolytic accelerator input unit 25 .

The electrolytic cell 14 has a box shape with an open top surface, and has a structure capable of storing water supplied from the water supply unit 15 . The electrolytic bath 14 is arranged in the lower part of the main body case 1 and can be attached to and detached from the main body case 1 by sliding horizontally with respect to the main body case 1 . The electrolytic cell 14 includes a tank holding portion 14 a , a water level detection portion 18 and a hypochlorous acid water sensor 26 .

The tank holding portion 14 a is provided on the bottom surface of the electrolytic bath 14 . A water supply portion 15 is attached to the upper portion of the tank holding portion 14a.

The water level detector 18 detects the water level of the electrolytic cell 14 . For example, it is composed of a float-equipped magnet having buoyancy inside and a magnetic force detection unit that is positioned opposite to the float-equipped magnet and detects the magnetic force of the magnet. However, if the water level can be detected, this configuration may not be used.

The hypochlorous acid water sensor 26 is installed so as to be immersed in the water of the electrolytic cell 14 or the hypochlorous acid water, and detects the concentration of the hypochlorous acid water in the electrolytic cell 14 . The hypochlorous acid water sensor 26 includes, for example, a sensor electrode and a concentration detection circuit, and the concentration detection circuit detects the concentration of hypochlorous acid water from a change in resistance when the sensor electrode is energized. However, the hypochlorous acid water sensor 26 may have other configurations as long as the hypochlorous acid water concentration can be detected.

The electrode unit 17 includes an electrode member, which is installed so as to be immersed in the water of the electrolytic bath 14 . By energizing the electrode member, the electrode unit 17 electrochemically decomposes water containing chloride ions in the electrolytic bath 14, that is, electrolyzed water, to generate hypochlorous acid water. The electrode unit 17 repeats one cycle of an energization time for energizing the electrode member for electrolysis and a time after energization is stopped, that is, a non-energization time, which is a time during which no energization is performed. This produces hypochlorous acid water. In other words, the service life of the electrode member can be extended by providing the electrode member with a non-energized time. If the energization time is longer than the non-energization time, a larger amount of hypochlorous acid is produced per cycle. Also, if the non-energization time is longer than the power-on time, the generation of hypochlorous acid per cycle can be suppressed. Furthermore, if the amount of electric power during the energization time is increased, more hypochlorous acid is produced.

The electrolysis accelerator input unit 25 injects an electrolysis accelerator into the electrolytic bath 14 . The electrolysis accelerator input section 25 includes a tablet input case 25a and a tablet input cover 25b.

The tablet charging case 25a is a case in which an electrolysis accelerator to be charged into the electrolytic bath 14 is stored, and can be taken out from the main body case 1 .

The tablet charging cover 25b is a cover detachably provided on the upper part of the tablet charging case 25a. The user can store the electrolysis accelerator in the tablet charging case 25a by removing the tablet charging cover 25b.

The electrolysis accelerator input unit 25 rotates a tablet input member provided in the tablet input case 25a when inputting the electrolysis accelerator into the electrolytic bath 14 . When the tablet loading member rotates, the electrolysis accelerator drops into the electrolytic cell 14 through the drop opening in the bottom of the tablet loading case 25a. The electrolysis accelerator charging unit 25 counts the number of electrolysis enhancing tablets dropped from the tablet charging case 25a into the electrolytic bath 14, and when it is determined that one electrolysis enhancing tablet has dropped from the tablet charging case 25a into the electrolytic bath 14, Stop rotation of the tablet input member. Then, the electrolysis accelerator dissolves in the water in the electrolytic bath 14 to generate water containing chloride ions. That is, the electrolytic bath 14 mixes the electrolysis accelerator and water. Then, the electrode unit 17 generates hypochlorous acid water from the electrolysis accelerator and water mixed in the electrolytic bath 14 . An example of an electrolysis accelerator is sodium chloride.

Further, a water supply portion 15 is provided inside the main body case 1 .

The water supply unit 15 is arranged above the electrolytic cell 14 and supplies water to the electrolytic cell 14 . The water supply unit 15 has a structure that can be attached to and detached from the electrolytic bath 14 and can be taken out from inside the main body case 1 . The water supply unit 15 includes a tank 15a and a lid 15b.

The tank 15a is a hollow container and stores water.

The lid 15b is provided at an opening positioned at the bottom of the tank 15a. The cover 15b has an opening/closing part at its center, and when the opening/closing part is opened, the water in the tank 15a is supplied to the electrolytic cell 14. As shown in FIG. Specifically, when the opening of the tank 15a faces downward and the water supply part 15 is attached to the tank holding part 14a of the electrolytic cell 14, the opening/closing part is opened by the tank holding part 14a. That is, when water is put into the water supply part 15 and attached to the tank holding part 14a, the opening/closing part is opened and water is supplied to the electrolytic cell 14, and the electrolytic cell 14 is filled with water. When the water level in the electrolytic cell 14 rises and reaches the position of the lid 15b, the opening of the water supply section 15 is sealed with water, so that the water supply is stopped and water remains inside the water supply section 15. The water inside the tank 15a is supplied to the electrolytic cell 14 each time the water level in the electrolytic cell 14 drops. That is, the water level in the electrolytic bath 14 is kept constant.

FIG. 4 is a cross-sectional view of the space purification device D in FIG. 2 taken along plane B, and is a view seen from the right side of the space purification device D when viewed from the front, that is, from the panel 3 side. FIG. 4 shows the air passage configuration of the space cleaning device D and the like.

As shown in FIG. 4, the body case 1 is provided with a purifier 19 and an air passage 8 .

The purification unit 19 purifies the space using the hypochlorous acid water in the electrolytic tank 14 . The purification unit 19 includes an air blowing unit 7 and a filter unit 16 .

The blower section 7 is provided in the central portion of the main body case 1 and includes a motor section 9 , a fan section 10 and a casing section 11 .

The motor section 9 is, for example, a DC motor and is fixed to the casing section 11 .

The fan section 10 is, for example, a sirocco fan, and is rotated by the power of the motor section 9 . The fan section 10 is fixed to a rotating shaft 9 a extending horizontally from the motor section 9 . A rotating shaft 9 a of the motor unit 9 extends from the front side to the back side in the main body case 1 .

The casing portion 11 surrounds the motor portion 9 and the fan portion 10 and has a scroll shape. The casing part 11 has a suction port 13 and a discharge port 12 .

The air intake port 13 is provided on the back side of the main body case 1 of the casing portion 11 and is an opening through which the air taken into the main body case 1 from the air intake port 2 is introduced into the casing portion 11 .

The discharge port 12 is provided on the upper surface side of the main body case 1 of the casing portion 11 and is an opening for discharging the air taken into the casing portion 11 from the suction port 13 to the outside of the casing portion 11 .

The filter part 16 is a cylindrical member that brings the hypochlorous acid water stored in the electrolytic bath 14 into contact with the air in the space that has flowed into the main body case 1 by the blower part 7 . The filter section 16 includes a gas-liquid contact filter section 16a.

The gas-liquid contact filter portion 16a is arranged on the circumference of the filter portion 16, and is provided with holes through which air can flow.

The filter part 16 is arranged so that one end thereof is immersed in the hypochlorous acid water of the electrolytic tank 14 to retain the water. The filter part 16 is rotated by the driving part around the central axis of the gas-liquid contact filter part 16a, and has a structure in which the hypochlorous acid water and the air are brought into continuous contact with each other.

The air passage 8 communicates the air inlet 2 and the air outlet 6 . The air passage 8 has a filter portion 16, a blower portion 7, and a blowout port 6 in this order from the intake port 2 to the downstream side. When the fan portion 10 is rotated by the motor portion 9 controlled by the control portion 20, the external air sucked from the air intake port 2 and entering the air passage 8 passes through the air-liquid contact filter portion 16a, the blower portion 7, and the blowout port in this order. 6 to the outside of the space purification device D. As a result, the hypochlorous acid water produced in the electrolytic cell 14 is released to the outside. In addition, the space purifying device D does not necessarily have to sprinkle the hypochlorous acid water itself, and it releases hypochlorous acid derived from the hypochlorous acid water (including volatilization) generated as a result. There may be.

Next, each function of the control unit 20 according to the first embodiment of the present invention will be described with reference to FIG. FIG. 5 is a schematic functional block diagram of the control unit 20 and peripheral units.

The control unit 20 controls charging of the electrolysis accelerator by the electrolysis accelerator charging unit 25 based on the hypochlorous acid water concentration in the electrolytic cell 14 detected by the hypochlorous acid water sensor 26 . A detailed description will be given below. The control unit 20 includes a counting unit 21 , a determination unit 22 and an input control unit 23 .

The counting unit 21 counts the elapsed time after the hypochlorous acid water sensor 26 detects the first concentration lower than the target hypochlorous acid water concentration while the electrode unit 17 is energized. . The first concentration is a value determined in advance by experiments or the like, and can be arbitrarily set. The target concentration of hypochlorous acid water is the target concentration of hypochlorous acid water when the electrode unit 17 is energized.

If the hypochlorous acid water concentration does not reach the target hypochlorous acid water concentration before the elapsed time counted by the counting unit 21 reaches the predetermined input determination time, the determination unit 22 adds the electrolysis accelerator. Make a decision to throw in. The input determination time is a value determined in advance by experiments or the like, and can be arbitrarily set.

When the determination unit 22 determines that the electrolysis accelerator is to be added, the input control unit 23 causes the electrolysis accelerator input unit 25 to input the electrolysis accelerator.

Here, the reason why this control is performed will be described. When the electrolysis accelerator is introduced into the electrolytic cell 14, chloride ions in the electrolytic cell 14 increase. Therefore, while not much time has passed after charging the electrolysis accelerator, before the elapsed time counted by the counting unit 21 reaches the input judgment time or more, the concentration of hypochlorous acid water in the electrolytic cell 14 reaches the target hypochlorous acid water concentration or higher. However, if a long time elapses after the electrolysis accelerator is added, it takes a long time for the hypochlorous acid water concentration in the electrolytic cell 14 to reach the target hypochlorous acid water concentration or higher. This is because the chloride ions in the electrolytic cell 14 are consumed along with the generation of hypochlorous acid, resulting in a shortage of chloride ions somewhere. That is, if the elapsed time counted by the counting unit 21 is equal to or more than the input determination time before the hypochlorous acid water concentration in the electrolytic cell 14 reaches the target hypochlorous acid water concentration or more, It can be determined that there is a shortage of chloride ions.

Each functional block of the control unit 20 can be implemented as hardware by a computer CPU (Central Processing Unit) and other elements or mechanical devices, and as software by a computer program or the like. It is a functional block realized by cooperation of Therefore, these functional blocks can be realized in various forms by combining hardware and software.

In the above configuration, the control executed by the control section 20 will be explained using the flowchart of FIG. FIG. 6 is a flow chart showing control executed by the control unit 20 according to this embodiment. Here, in the flow chart, numbers are assigned with the initial letter S. For example, S1 and the like refer to processing steps. However, the magnitude of the numerical value indicating the processing step and the processing order are irrelevant.

First, energization by the electrode portion 17 is started. The counting unit 21 checks whether the hypochlorous acid water concentration in the electrolytic cell 14 detected by the hypochlorous acid water sensor 26 is equal to or higher than the first concentration (S1). If the hypochlorous acid water concentration in the electrolytic cell 14 is not equal to or higher than the first concentration, the counting unit 21 continues checking until the hypochlorous acid water concentration in the electrolytic cell 14 becomes equal to or higher than the first concentration (No in S1 → S1). If the hypochlorous acid water concentration in the electrolytic cell 14 is equal to or higher than the first concentration, the counting unit 21 starts counting the elapsed time after the hypochlorous acid water sensor 26 detects the first concentration (S1 Yes→S2).

Next, the determination unit 22 checks whether the hypochlorous acid water concentration in the electrolytic cell 14 is equal to or higher than the target hypochlorous acid water concentration (S3).

If the hypochlorous acid water concentration in the electrolytic cell 14 is equal to or higher than the target hypochlorous acid water concentration, the energization by the electrode unit 17 ends (Yes in S3→end). If the hypochlorous acid water concentration in the electrolytic cell 14 is not equal to or higher than the target hypochlorous acid water concentration, the determination unit 22 confirms whether or not the elapsed time counted by the counting unit 21 is equal to or greater than the input determination time (S3). No → S4). By confirming whether or not the elapsed time is equal to or longer than the input judgment time, it is possible to confirm whether or not the chloride ions in the electrolytic cell 14 are insufficient.

If the elapsed time is not equal to or longer than the input determination time, the determination unit 22 checks again whether the hypochlorous acid water concentration in the electrolytic cell 14 is equal to or higher than the target hypochlorous acid water concentration (No in S4→S3).

If the elapsed time is equal to or longer than the input determination time, the determination unit 22 determines to input the electrolysis accelerator, and the input control unit 23 instructs the electrolysis accelerator input unit 25 to input the electrolysis accelerator (Yes in S4). →S5). The electrolysis accelerator input unit 25 injects an electrolysis accelerator into the electrolytic bath 14 .

Since the elapsed time is equal to or longer than the input determination time, it can be understood that the chloride ions in the electrolytic cell 14 are insufficient. By adding an electrolysis accelerator to the electrolytic bath 14, the shortage of chloride ions in the electrolytic bath 14 can be resolved. Also, the electrolysis accelerator can be added at an appropriate timing when the chloride ions in the electrolytic cell 14 are insufficient. Also, the concentration of hypochlorous acid water in the electrolytic cell 14 can reach the target concentration of hypochlorous acid water at an early stage.

The control unit 20 checks whether the hypochlorous acid water concentration in the electrolytic cell 14 is equal to or higher than the target hypochlorous acid water concentration (S6). If the hypochlorous acid water concentration of the electrolytic cell 14 is not equal to or higher than the target hypochlorous acid water concentration, the control unit 20 continues until the hypochlorous acid water concentration of the electrolytic cell 14 becomes equal to or higher than the target hypochlorous acid water concentration. Confirmation is continued (No in S6→S6). If the hypochlorous acid water concentration in the electrolytic cell 14 is equal to or higher than the target hypochlorous acid water concentration, the energization by the electrode unit 17 ends (Yes in S3→end).

(Embodiment 2)
The second embodiment, like the first embodiment, relates to the control of charging the electrolysis accelerator. In the second embodiment, the differences from the first embodiment will be mainly described. The internal configuration of the space purification device according to the second embodiment is the same as that of the space purification device D according to the first embodiment. However, the space purification device in Embodiment 2 includes a control section 20A instead of the control section 20. FIG. A schematic functional block diagram of the control unit 20A is partially different from that of the control unit 20. FIG.

Each function of the control unit 20A according to Embodiment 2 of the present invention will be described with reference to FIG. FIG. 7 is a schematic functional block diagram of the control section 20A and peripheral sections. The control unit 20A includes a counting unit 21A, a concentration increase rate calculating unit 27, a determining unit 22A, and an input control unit 23.

The counting section 21A counts a predetermined unit time while the electrode section 17 is energized. The unit time is a value determined in advance by experiments or the like, and can be arbitrarily set.

The concentration increase rate calculation unit 27 calculates the increase rate of the hypochlorous acid water concentration per unit time counted by the counting unit 21A. Specifically, the concentration increase rate calculator 27 calculates the hypochlorous acid water concentration before the unit time from the hypochlorous acid water concentration in the electrolytic cell 14 detected by the hypochlorous acid water sensor 26 after the unit time has passed. By subtracting the hypochlorous acid water concentration in the electrolytic cell 14 detected by the sensor 26, the increase rate of the hypochlorous acid water concentration per unit time is calculated.

If the increase rate of the hypochlorous acid water concentration per unit time calculated by the concentration increase rate calculation unit 27 is smaller than a predetermined increase threshold value, the determination unit 22A determines to add the electrolysis accelerator. The rising threshold is a value determined in advance by experiments or the like, and can be arbitrarily set.

Since the input control unit 23 is the same as that of the first embodiment, the description thereof is omitted.

Here, the reason why this control is performed will be described. When the electrolysis accelerator is introduced into the electrolytic cell 14, chloride ions in the electrolytic cell 14 increase. Therefore, while not much time has passed since the electrolysis accelerator was added, the increase rate of the hypochlorous acid water concentration per unit time calculated by the concentration increase rate calculation unit 27 is equal to or higher than the increase threshold. However, if a long time elapses after the electrolysis accelerator is added, the increase rate of the hypochlorous acid water concentration per unit time becomes small. This is because the chloride ions in the electrolytic cell 14 are consumed along with the generation of hypochlorous acid, resulting in a shortage of chloride ions somewhere. That is, when the increase rate of the hypochlorous acid water concentration per unit time is smaller than the predetermined increase threshold value, it can be determined that the chloride ions in the electrolytic cell 14 are insufficient.

Each functional block of the control unit 20A can also be realized in various forms by combining hardware and software.

In the above configuration, the control executed by the control section 20A will be explained using the flowchart of FIG. FIG. 8 is a flowchart showing control executed by control unit 20A according to the present embodiment.

While the electrode section 17 is energized, the counting section 21A starts counting (S10). Here, it is desirable that the counting by the counting section 21A is started after a certain period of time from the start of the energization of the electrode section 17 . This is because it may take a certain period of time for the increase in hypochlorous acid water concentration to stabilize. The concentration increase rate calculator 27 acquires the hypochlorous acid water concentration X1 of the electrolytic cell 14 (S11). When the count value counted by the counting unit 21A reaches the unit time, the concentration increase rate calculating unit 27 acquires the hypochlorous acid water concentration X2 of the electrolytic cell 14 (S12). The concentration increase rate calculator 27 calculates the increase rate of the hypochlorous acid water concentration per unit time by subtracting the hypochlorous acid water concentration X1 from the hypochlorous acid water concentration X2 (S13).

Next, the determination unit 22A checks whether or not the increase rate of the hypochlorous acid water concentration per unit time is smaller than the increase threshold (S14). By confirming whether the increase rate of the hypochlorous acid water concentration per unit time is smaller than the increase threshold, it is possible to confirm whether the chloride ions in the electrolytic cell 14 are insufficient. If the increase rate of the hypochlorous acid water concentration per unit time is smaller than the increase threshold, the determination unit 22A determines to add the electrolysis accelerator, and the input control unit 23 causes the electrolysis accelerator input unit 25 to perform electrolysis acceleration. The injection of the agent is instructed (Yes in S14→S15). The electrolysis accelerator input unit 25 injects an electrolysis accelerator into the electrolytic bath 14 . Since the increase rate of the hypochlorous acid water concentration per unit time is smaller than the increase threshold, it can be understood that the chloride ions in the electrolytic cell 14 are insufficient. By adding an electrolysis accelerator to the electrolytic bath 14, the shortage of chloride ions in the electrolytic bath 14 can be resolved. Also, the electrolysis accelerator can be added at an appropriate timing when the chloride ions in the electrolytic cell 14 are insufficient. Also, the concentration of hypochlorous acid water in the electrolytic cell 14 can reach the target concentration of hypochlorous acid water at an early stage.

If the increase rate of the hypochlorous acid water concentration per unit time is equal to or higher than the increase threshold value, the determination unit 22A does not perform the determination of adding the electrolysis accelerator (No→end in S14).

Although the present invention has been described above based on the embodiments, it should be understood that the present invention is not limited to the above-described embodiments, and that various improvements and modifications are possible without departing from the scope of the present invention. It can be easily guessed.

For example, the space purification device D may not have the tank 15a as the water supply unit 15. In this case, tap water is used to supply the space purification device D with water. Then, when the water level of the electrolytic bath 14 drops, tap water may be supplied until the water level of the electrolytic bath 14 rises to a predetermined position. Accordingly, the present invention can be implemented with a configuration different from that of the present embodiment.

Further, the space purification device D does not have to have the electrolysis accelerator charging part 25 . In this case, the space purification device D notifies the user to insert the electrolysis-enhancing tablet by display or sound, thereby prompting the user to directly insert the electrolysis-enhancing tablet into the electrolytic cell 14 . This makes it possible to simplify the configuration.

(Outline of invention)
A space purifier according to the present invention comprises an electrolytic cell for mixing an electrolysis accelerator and water, a water supply unit for supplying water to the electrolytic cell, and sodium hypochlorite from the electrolysis accelerator and water mixed in the electrolytic cell. An electrode part that generates chloric acid water, an electrolysis accelerator input part that puts an electrolysis accelerator into the electrolytic cell, a hypochlorous acid water sensor that detects the concentration of hypochlorous acid water in the electrolytic cell, and hypochlorous acid a control unit for controlling charging of the electrolysis accelerator by the electrolysis accelerator charging unit based on the hypochlorous acid water concentration in the electrolytic cell detected by the water sensor. Thereby, the electrolysis accelerator can be introduced at an appropriate timing.

In addition, the control unit counts the elapsed time after the hypochlorous acid water sensor detects the first concentration lower than the target hypochlorous acid water concentration while the electrode unit is energized. If the concentration of hypochlorous acid water does not reach the target concentration of hypochlorous acid water by the time the elapsed time counted by the unit and the counting unit reaches the predetermined injection determination time, the electrolysis accelerator is added. A determining unit that performs determination, and an input control unit that performs input of the electrolysis accelerator by the electrolysis accelerator input unit when the determination unit determines that the electrolysis accelerator is input. If the hypochlorous acid water concentration does not reach the target hypochlorous acid water concentration by the time the elapsed time reaches the predetermined input judgment time, the electrolysis accelerator is added to the electrolytic cell at an appropriate timing. Chloride ion deficiency can be eliminated.

In addition, the control unit includes a counting unit that counts a predetermined unit time while the electrode unit is energized, and a rate of increase in the concentration of hypochlorous acid water per unit time counted by the counting unit. If it is smaller than the rising threshold, the determination unit that determines to add the electrolysis accelerator, and when the determination unit determines that the electrolysis accelerator is to be added, the electrolysis accelerator is added by the electrolysis accelerator input unit. and an input control unit for performing. If the increase rate of the hypochlorous acid water concentration per unit time is smaller than a predetermined increase threshold, the lack of chloride ions in the electrolytic cell can be resolved at an appropriate timing by adding the electrolysis accelerator.

Further, a purifying unit that purifies the space using the hypochlorous acid water in the electrolytic cell may be provided. This makes it possible to purify the space.

The present invention is useful as a space purification device for removing (including inactivating) bacteria, fungi, viruses, odors, etc. from the air.

D space purification device 1 main body case 1A main body side surface 2 air inlet 3 panel 5 hypochlorous acid water generator 6 air outlet 7 air blower 8 air passage 9 motor section 9a rotating shaft 10 fan section 11 casing section 12 outlet 13 suction port 14 electrolytic cell 14a tank holding part 15 water supply part 15a tank 15b lid 16 filter part 16a gas-liquid contact filter part 17 electrode part 18 water level detection part 19 purification part 20 control part 20A control part 21 counting part 21A counting part 22 determination part 22A Determination unit 23 Input control unit 25 Electrolysis accelerator input unit 25a Tablet input case 25b Tablet input cover 26 Hypochlorous acid water sensor 27 Concentration increase rate calculator

Claims (4)

an electrolytic cell for mixing an electrolytic accelerator and water;
a water supply unit that supplies water to the electrolytic cell;
an electrode unit for generating hypochlorous acid water from the electrolysis accelerator and the water mixed in the electrolytic cell;
an electrolysis accelerator charging unit for charging the electrolysis accelerator into the electrolytic cell;
a hypochlorous acid water sensor for detecting the concentration of hypochlorous acid water in the electrolytic cell;
a control unit for controlling charging of the electrolysis accelerator by the electrolysis accelerator charging unit based on the hypochlorous acid water concentration in the electrolytic cell detected by the hypochlorous acid water sensor. The control unit
A counting unit that counts the elapsed time after the hypochlorous acid water sensor detects a first concentration lower than the target hypochlorous acid water concentration while the electrode unit is energized;
When the hypochlorous acid water concentration does not reach the target hypochlorous acid water concentration before the elapsed time counted by the counting unit reaches a predetermined injection determination time, the electrolysis accelerator is added. a determination unit that determines whether
2. The space purification device according to claim 1, further comprising an input control unit for inputting the electrolysis accelerator by the electrolysis accelerator input unit when the determination unit determines that the electrolysis accelerator is input. The control unit
a counting unit that counts a predetermined unit time while the electrode unit is energized;
a determination unit that determines to add the electrolysis accelerator when the increase rate of the hypochlorous acid water concentration per unit time counted by the counting unit is smaller than a predetermined increase threshold;
2. The space purification device according to claim 1, further comprising an input control unit for inputting the electrolysis accelerator by the electrolysis accelerator input unit when the determination unit determines that the electrolysis accelerator is input. 4. The space purification device according to any one of claims 1 to 3, further comprising a purifier that purifies the space using the hypochlorous acid water in the electrolytic cell.

Images