JP2019146830A - Air purifying device - Google Patents

Abstract

To provide an air purifying device that can detect whether sodium chloride is put into water in a water storage container.SOLUTION: A control unit 4 makes an electrolysis unit 22 feed a current to the water in a water storage container 19, to calculate a first conductivity that is a conductivity of the water in the water storage container 19. Then, when a user presses a confirmation button 26b, the control unit 4 makes the electrolysis unit 22 feed a current to the water in the water storage container 19, to calculate a second conductivity that is a conductivity of the water in the water storage container 19. If the second conductivity is higher than the first conductivity, it is determined that the user puts sodium chloride into water in the water storage container 19 before pressing the confirmation button 26b, and the operation of the electrolysis unit 22, filter portion 21, or air blower 2 is permitted.SELECTED DRAWING: Figure 9

Description

  The present invention relates to an air purification apparatus that removes bacteria, fungi, viruses, odors, and the like in the air using electrolyzed water obtained by energizing water.

  The structure of this type of conventional air purification apparatus has been as follows.

  That is, salt is automatically added to tap water from a saline tank, electrolyzed to generate electrolyzed water, this electrolyzed water is supplied to the filter unit, air and electrolyzed water are brought into contact with each other, a virus floating in the air, etc. (For example, the following patent document 1).

JP 2010-29244 A

  In such a conventional air purification device, it has not been possible to confirm whether or not the salt has been introduced into the water in the water storage container.

  In order to achieve this object, the present invention provides a main body case having a suction port and an outlet, a water storage container for storing water provided in the main body case, and a water storage container provided in the water storage container. An electrolysis unit that electrolyzes water in the container; a filter part that is partially immersed in the water in the water storage container; a blower that blows air to the filter part; the electrolysis unit, the filter part, and the blower; And a control unit that controls the first conductivity, which is a conductivity of the water in the water storage container, by passing an electric current through the water in the water storage container by the electrolysis unit. When the person presses the confirmation button, the control unit causes the electrolysis unit to pass a current through the water in the water storage container, and converts the second conductivity, which is the conductivity of the water in the water storage container, Second lead If the rate is greater than the first conductivity, the user determines that sodium chloride has been added to the water in the reservoir before pressing the confirmation button, and the electrolysis unit or the filter part Alternatively, the blower can be operated, and these means achieve the initial purpose.

  As described above, the present invention can provide an air purification device that can detect whether or not salt has been introduced into the water in the water storage container.

The perspective view of the air purification apparatus of Embodiment 1 of this invention Perspective view of the air purification device Perspective view of the air purification device Cross section of the air purification device The figure which shows the functional block of the air purification apparatus Perspective view of the water storage container of the air purification device The figure which shows the operation part of the air purification apparatus The figure which shows the display part of the air purification apparatus The flowchart which shows the process of the control part of the air purification apparatus

(Embodiment 1)
First, an air purification apparatus according to the present invention will be described with reference to FIGS.

  1, 2, and 3 are perspective views of the air purification device according to the first embodiment of the present invention. In addition, FIG. 1 is the figure which looked at the air purification apparatus from the front side. FIG. 2 is a view of the air purification device with the panel opened as viewed from the front side, in a state in which the air purification unit is removed. FIG. 3 is a view of the air purification device with the panel opened as viewed from the front side, in which the air purification unit is removed, the tank member and the filter portion are taken out of the water storage container, and the electrolysis unit is lowered. 4 is a cross-sectional view of FIG. 1, showing a state in which the panel is opened. FIG. 5 is a view in which the tank member and the filter portion are taken out of the water storage container and the water storage container is viewed from above.

  As shown in FIGS. 1-5, the air purification apparatus of this Embodiment is a substantially box-shaped main body case 1, the air blower 2, the air purification part 3, the control part 4, the operation part 5, and a display. Part 6.

  Hereinafter, a detailed configuration of the air purification device will be described.

  The main body case 1 is provided with an air inlet 7, an air outlet 8, an operation cover 9, and a panel 10.

  The air inlet 7 is provided on both side surfaces of the main body case 1. The air outlet 8 is an openable and closable type, and is provided on the back side of the top surface of the main body case 1. 1 and 2, the air outlet 8 is in an open state. An operation cover 9 that is rotatable in the elevation direction is provided on the front side of the top surface of the main body case 1. When the operation cover 9 is opened, an operation unit 5 is provided inside.

  A panel 10 that can be opened and closed is provided on the front side of the main body case 1. A window portion 11 is provided on the upper portion of the panel 10. The window portion 11 has a structure in which a horizontally long rectangular opening provided in the panel is covered with a transparent resin plate. The display unit 6 in the main body case 1 can be seen from the outside of the main body case 1 through the window portion 11.

  When the panel 10 is opened, a cavity 12 is provided in the lower part of the main body case 1. The hollow portion 12 is a hole that extends in the horizontal direction from the laterally long rectangular opening 12a on the front surface side of the main body case to the rear surface side of the main body case 1. An air purification unit 3 is provided in the cavity 12. As shown in FIG. 2, the air purification unit 3 can be taken out of the body case 1 from the cavity 12.

  As shown in FIG. 4, an air passage 13 that communicates the air inlet 7 and the air outlet 8 is provided in the main body case 1. In this air passage 13, an air purification unit 3 (water storage container, filter part), a blower 2, and an outlet 8 are provided in order from the air inlet 7. When the fan unit 15 is rotated by the motor unit 14 of the blower 2, the external air that has entered the main body case 1 through the air inlet 7 passes through the air purification unit 3 water storage container and the filter portion), the blower 2, and the outlet 8 in order. Through the body case 1.

  The blower 2 is provided in the central portion of the main body case, and includes a motor unit 14, a fan unit 15 rotated by the motor unit 14, and a scroll-shaped casing unit 16 surrounding them.

  The motor unit 14 is fixed to the casing unit 16.

  The fan unit 15 is a sirocco fan and is fixed to a rotating shaft (not shown) extending in the horizontal direction from the motor unit 14. The rotating shaft of the motor unit 14 extends from the front side of the main body case 1 to the back side.

  The casing part 16 is provided with a discharge port 17 and a suction port 18. The discharge port 17 is provided on the upper surface side of the main body case 1 of the casing portion 16. Further, the suction port 18 is provided on the front surface side of the main body case 1 of the casing portion 16. When the fan unit 15 is rotated by the motor unit 14, air is sucked into the casing unit 16 from the suction port 18 of the casing unit 16, and the sucked air is blown out of the casing unit 16 through the discharge port 17.

  The air purification unit 3 includes a water storage container 19, a tank member 20, a filter portion 21, and an electrolysis unit 22.

  The water storage container 19 has a box shape in which an opening is provided on the top surface, and has a structure capable of storing water. The water storage container 19 is disposed in the lower part of the main body case 1 and is detachable from the cavity 12 by sliding in the horizontal direction. The water storage container 19 stores water supplied from the tank member 20.

  The tank member 20 is installed in the lower part inside the main body case 1 and has a structure that can be detached from the water storage container 19. The tank member 20 is attached to a tank holding portion 23 provided on the bottom surface of the water storage container 19. The tank member 20 includes a tank 20a for storing water, and a lid 20b provided at an opening (not shown) of the tank 20a. An opening / closing part (not shown) is provided at the center of the lid 20b. When the opening / closing part is opened, water in the tank 20a is supplied to the water storage container 19. Specifically, when the tank member 20 is attached to the tank holding part 23 of the water storage container 19 with the opening of the tank 20 a facing downward, the tank holding part 23 opens the opening / closing part. That is, when water is poured into the tank member 20 and attached to the tank holding portion 23, the opening / closing portion is opened and water is supplied from the tank member 20 to the water storage container 19, and water is accumulated in the water storage container 19. When the water level in the water storage container 19 rises and the water reaches the position of the lid 20b, the opening of the tank member 20 is sealed, so that the water supply is stopped. Water remains in the tank member 20, and water in the tank 20 a is supplied to the water storage container 19 whenever the water level in the water storage container 19 drops. That is, the water level in the water storage container 19 is kept constant.

  The filter portion 21 is a member that makes the water stored in the water storage container 19 come into contact with the indoor air sucked into the main body case 1 by the blower 2. The filter portion 21 is provided with a filter 24 that is formed in a cylindrical shape and is provided with holes in the circumferential portion through which air can flow. The filter portion 21 is rotatably incorporated in the water storage container 19 around the central axis of the filter 24 so that one end of the filter 24 is immersed in the water of the water storage container 19. And the filter part 21 is rotated by the drive part mentioned later, and has a structure which makes water and room air contact continuously.

  The electrolysis unit 22 is provided in the main body case 1 so as to be movable in the vertical direction. In FIG. 2, the electrolysis unit 22 is in an invisible state because it is moved upward. FIG. 3 shows a state where the electrolysis unit 22 is moved downward. The electrolysis unit 22 has a first electrode (not shown) and a second electrode (not shown). When the water storage container 19 is attached to the cavity 12 at the lower part of the main body case 1 and the electrolysis unit 22 is moved downward, the first electrode and the second electrode are immersed in the water storage container 19. (See FIG. 3). When a voltage is applied to the first electrode and the second electrode with the first electrode and the second electrode immersed in the water storage container 19, an electrolysis promoting solvent (not shown) introduced by the user The water in the water storage container 19 containing water is treated electrochemically. An example of the electrolysis promoting solvent is a sodium chloride aqueous solution, and hypochlorous acid is generated by the electrolysis unit 22. The electrolysis unit 22 is detachable from the main body case 1.

  FIG. 5 is a functional block diagram of the air purification device according to the first embodiment of the present invention. FIG. 6 is a perspective view of a water storage container of the air purification device according to the first embodiment of the present invention.

  As shown in FIGS. 5 and 6, the control unit 4 controls the electrolysis unit 22, the filter portion 21 (drive unit 21 a), the blower 2 (motor unit 14), and a display lamp 27 described later. Specifically, the control unit 4 determines the voltage applied to the first electrode and the second electrode as the electrolysis unit 22 according to a signal from a water level detection unit 25 described later and the operation of the operation button 26, and a filter. The operation of the drive unit 21a that is the portion 21, the number of rotations of the fan unit 15 that is the blower 2, and the lighting, blinking, and extinguishing of the display lamp 27 are controlled.

  The water level detection unit 25 is provided movably in the water storage container, and includes a float part 25a that moves with the water level and a position detection part 25b that detects the position of the float part 25a (see FIGS. 3 and 6). An example of the float portion 25a is a structure in which a foamed polystyrene containing a magnet is mounted on a water storage container so as to be movable in the vertical direction. An example of the position detection portion 25b is a Hall sensor that is fixed to the main body case 1 and detects a magnetic field of a magnet.

  FIG. 7 is a view of the operation unit as viewed from above.

  As shown in FIG. 7, the operation unit 5 is provided on the front side of the top surface of the main body case 1. The operation unit 5 includes a plurality of operation buttons 26 and a display lamp 27.

  The operation button 26 includes a diagnosis button 26a, a confirmation button 26b, an operation mode button 26c, and a power button 26d. When viewed from the front side of the main body case 1, a diagnostic button 26a is provided at the center, and a confirmation button 26b is disposed on the right side of the diagnostic button 26a. An operation mode button 26c is arranged on the right side of the confirmation button 26b, and a power button 26d is arranged on the right end of the operation unit 5. The diagnosis button 26 a, the confirmation button 26 b, the operation mode button 26 c, and the power button 26 d are arranged in a line in the left-right direction in the main body case 1.

  The display lamp 27 includes a diagnostic lamp 27a, a confirmation lamp 27b, and a mode lamp 27c.

  The diagnostic lamp 27a is disposed on the back side of the main body case 1 of the diagnostic button 26a. An example of the diagnostic lamp 27a is an LED (light emitting diode), and the control unit 4 causes the LED to blink or be turned off.

  The confirmation lamp 27b is disposed on the back side of the main body case 1 of the confirmation button 26b. An example of the confirmation lamp 27b is an LED, and the control unit 4 causes the LED to blink or be turned off.

  Three mode lamps 27c are arranged on the back side of the main body case 1 of the operation mode button 26c. These three are arranged in a line in the left-right direction in the main body case 1, the left end is the strong mode, the center is the middle mode, and the right end is the weak mode.

  FIG. 8 is a view of the display unit as viewed from the front side of the main body case.

  As shown in FIG. 8, the display unit 6 is provided in the main body case 1 that is the upper front side of the main body case 1, and is viewed from the outside of the main body case 1 through the window portion 11 of the panel 10 of the main body case 1. be able to. The display unit 6 includes a water supply lamp 6a and a care lamp 6b.

  The water supply lamp 6 a is disposed at the center of the display unit 6 when viewed from the front side of the main body case 1. An example of the water supply lamp 6a is an LED, and the control unit 4 turns the LED on or off.

  The maintenance lamp 6b is disposed on the left side of the water supply lamp 6a when viewed from the front side of the main body case 1. An example of the care lamp 6b is an LED, and the control unit 4 turns on or off the LED.

  FIG. 9 is a flowchart showing processing of the control unit of the air purification device according to Embodiment 1 of the present invention.

  The operation method and operation of the air purifier according to the present invention will be described.

  6 to 9, first, a user connects a power plug (not shown) of a power cord (not shown) to an external power source (outlet) (FIG. 9, S1), and a power button. 26d is pressed (FIG. 9, S2). When the power button 26d is pressed, a voltage is applied to the control unit 4 from an external power source (not shown) via a power cord. Here, the water level detection part 25 detects whether there is water in the water storage container 19 (FIG. 9, S3). Usually, since the user throws away the water in the water storage container 19 and the tank 20a after the previous use, there is no water in the water storage container 19.

  However, when the water level detection unit 25 detects that a predetermined amount of water is in the water storage container 19 (Yes in FIG. 9, S3), the control unit 4 notifies the user of the water storage container 19 and the tank 20a. In order to dispose of the water inside, the maintenance lamp 6b of the display unit 6 is turned on (FIG. 9, S4). Thereby, it can suppress that a user forgets to throw away used water used last time. When the maintenance lamp 6b is lit, the user unplugs the power plug, opens the panel 10, takes out the water storage container 19 and the tank 20a, discards the water in the water storage container 19 and the tank 20a, and empty the water storage container 19 and The tank 20a is attached to the main body case 1 again, and the panel 10 is closed. Then, the process starts again from connecting the first power plug (not shown) to the external power source (outlet). In addition, used water is water which contains sodium chloride and has generated hypochlorous acid by electrolysis.

  On the other hand, when the water level detection unit 25 detects that no water is contained in the water storage container 19 (No in S3 in FIG. 9), the control unit 4 turns on the water supply lamp 6a to supply water to the user. Prompt (S5 in FIG. 9). The user opens the front panel 10 of the main body case 1 and removes the tank member 20 from the water storage container 19. The user puts water into the removed tank member 20, attaches it to the water storage container 19, and closes the panel of the main body case 1 (FIG. 9, S6). Here, the water level detection unit 25 detects whether or not there is water in the water storage container 19 (FIG. 9, S7). Normally, the user puts water into the tank member 20, water is supplied from the tank member 20 to the water storage container 19, and there is water in the water storage container 19.

  However, when the water level detection unit 25 detects that a predetermined amount of water is not contained in the water storage container 19 (No in S7 of FIG. 9), the control unit 4 notifies the user of the water storage container 19 and the tank member. In order to supply water to 20, the lighting of the water supply lamp 6a of the display unit 6 is continued (FIG. 9, S5). Thereby, forgetting to put water into the water storage container 19 and the tank member 20 can be suppressed.

  On the other hand, when the water level detection unit 25 detects that a predetermined amount of water is contained in the water storage container 19 (Yes in S7 of FIG. 9), a signal is sent from the water level detection unit 25 to the control unit 4. When the control unit 4 receives the signal from the water level detection unit 25, the control unit 4 blinks the diagnosis lamp 27a to prompt the user to press the diagnosis button 26a (S8 in FIG. 9).

  Next, when the user watches the blinking diagnostic lamp 27a and presses the diagnostic button 26a (FIG. 9, S9), the control unit 4 applies a predetermined voltage to the electrolysis unit 22 (FIG. 9, S10). Then, an electric current is passed through the water in the water storage container 19 by the electrolysis unit 22 to convert the first conductivity which is the conductivity of the water in the water storage container 19 (FIG. 9, S11). Specifically, the control unit 4 applies a predetermined voltage to the first electrode and the second electrode, and causes a current to flow through the water in the water storage container 19. The control unit 4 converts the electrical conductivity of the water in the water storage container 19 from the current value that has flowed into the water in the water storage container 19 to obtain the first electrical conductivity. Usually, since the water storage container 19 contains tap water, the first conductivity is equal to or lower than a predetermined value.

  However, when the first conductivity is larger than the predetermined value (No in S11 in FIG. 9), the control unit 4 determines that the water in the water storage container 19 is not tap water, and the diagnostic lamp 27a. Is turned off and the maintenance lamp 6b of the display unit 6 is turned on to allow the user to clean the water (FIG. 9, S4). In this way, by turning on the care lamp 6b, the user is informed of an erroneous operation, for example, that he / she has mistakenly used used water, so that the user can be prevented from making an error in the operation. When the maintenance lamp 6b is lit, the user unplugs the power plug, opens the panel 10, takes out the water storage container 19 and the tank 20a, discards the water in the water storage container 19 and the tank 20a, and empty the water storage container 19 and The tank 20a is attached to the main body case 1 again, and the panel 10 is closed. Then, it is necessary to start again by connecting the first power plug (not shown) to the external power source (outlet).

  On the other hand, when the first conductivity is equal to or lower than the predetermined value (FIG. 9, S11: Yes), the control unit 4 determines that the water in the water storage container 19 is tap water, and the diagnostic lamp 27a. Is turned off, and the confirmation lamp 27b is flashed to prompt the user to press the confirmation button 26b (FIG. 9, S12). Note that the predetermined value is, for example, 500 μS to 2500 μS. As a result, it is possible to determine whether the water in the first water storage container 19 is new tap water or an aqueous solution containing sodium chloride used last time. Therefore, the amount of hypochlorous acid generated by the water in the water storage container 19 is reduced. Variations can be suppressed. Further, by blinking the confirmation lamp 27b, the user is informed of the next operation, so that the user can operate without making a mistake in the operation sequence.

  Next, the user sees blinking of the confirmation lamp 27 b, opens the panel 10 on the front surface of the main body case 1, and puts the electrolysis promoting solvent into the water storage container 19. After introducing the electrolysis promoting solvent, the user closes the panel 10 of the main body case 1 (FIG. 9, S13) and presses the confirmation button 26b (FIG. 9, S14).

  Next, when the confirmation button 26 b is pressed, the control unit 4 causes the electrolysis unit 22 to pass a current through the water in the water storage container 19 to convert the second conductivity, which is the conductivity of the water in the water storage container 19. . Specifically, the control unit 4 applies a predetermined voltage (the same voltage as the voltage applied when converting the first conductivity) to the first electrode and the second electrode, and the water storage container 19. A current is passed through the water inside. The control unit 4 converts the electrical conductivity of the water in the water storage container 19 from the value of the current flowing in the water in the water storage container 19 to obtain the second electrical conductivity, and the second electrical conductivity is the first electrical conductivity. Whether it is larger is determined (S15 in FIG. 9). Normally, when an electrolysis promoting solvent is introduced into the water storage container 19, the second conductivity is obtained, and the second conductivity is larger than the first conductivity.

  However, when the second conductivity is the same as the first conductivity (No in S15 in FIG. 9), or when the difference between the second conductivity and the first conductivity is within a predetermined range. The controller 4 determines that the user has forgotten to add the electrolysis promoting solvent to the water in the water storage container 19 before pressing the confirmation button 26b, turns off the confirmation lamp 27b, and cleans the user with water. Therefore, the maintenance lamp 6b is turned on (FIG. 9, S4). In this way, by turning on the care lamp 6b, the user is informed that the work is wrong, so that the user can be prevented from making a mistake. In a state where the maintenance lamp 6b is blinking, the user unplugs the power plug, opens the panel 10, takes out the water storage container 19 and the tank 20a, discards the water in the water storage container 19 and the tank 20a, and empty the water storage container 19 and The tank 20a is attached to the main body case 1 again, and the panel 10 is closed. Then, it is necessary to start again by connecting the first power cord (not shown) to the external power source (outlet).

  On the other hand, when the second conductivity is larger than the first conductivity (FIG. 9, Yes in S15), or the difference obtained by subtracting the first conductivity from the second conductivity is larger than the predetermined range. In this case, the control unit 4 determines that the user has put the electrolysis promoting solvent into the water in the water storage container 19 before pressing the confirmation button 26b, turns off the confirmation lamp 27b, and prompts the user to operate the operation mode button. In order to prompt the user to press 26c, the mode lamp 27c is blinked (FIG. 9, S16). Thereby, since it can be judged whether the electrolysis promotion solvent has entered into the water in the water storage container 19, it is possible to suppress forgetting to add the electrolysis promotion solvent. In addition, by blinking the operation mode button 26c, the user is informed of the next operation, so that the user can operate without mistaken operation order.

  Finally, the user looks at the blinking of the mode lamp 27c, presses the operation mode button 26c, and sets the operation mode (S17 in FIG. 9). In accordance with this operation mode, the control unit 4 uses the first electrode and the second electrode as the electrolysis unit 22 to flow the water in the water storage container 19, the operation of the drive unit as the filter portion 21, and the blower 2. The number of rotations of the fan unit 15 is controlled (S18 in FIG. 9).

  An example of the operation when the strong mode is set by the operation mode button 26c will be described. The control unit 4 causes a strong mode current to flow through the water in the water storage container 19 by the first electrode and the second electrode, which are the electrolysis unit 22, and electrolyzes the water in the water storage container 19 containing sodium chloride. Hypochlorous acid is generated. The control unit 4 rotates the filter 24 by the drive unit in a state where one end of the filter 24 is immersed in the water in the water storage container 19 containing hypochlorous acid, so that the entire filter 24 contains hypochlorous acid. Retain water. The control unit 4 rotates the fan unit 15 according to the rotational speed of the strong mode, and blows air outside the main body case 1 to the filter 24 by the blower 2. The air blown to the filter 24 becomes air containing hypochlorous acid when passing through the filter 24. Air containing hypochlorous acid is blown by the blower 2 from the outlet of the main body case 1 to the outside of the main body case 1 to sterilize the space outside the main body case 1.

  The present invention is suitable as an air purification device for removing microorganisms floating in a space.

DESCRIPTION OF SYMBOLS 1 Main body case 2 Blower 3 Air purification part 4 Control part 5 Operation part 6 Display part 6a Water supply lamp 6b Maintenance lamp 7 Intake port 8 Outlet 9 Operation cover 10 Panel 11 Window part 12 Cavity part 12a Opening 13 Air path 14 Motor part DESCRIPTION OF SYMBOLS 15 Fan part 16 Casing part 17 Discharge port 18 Suction port 19 Water storage container 20 Tank member 20a Tank 20b Cover 21 Filter part 21a Drive part 22 Electrolysis unit 23 Tank holding part 24 Filter 25 Water level detection part 25a Float part 25b Position detection part 26 Operation Button 26a Diagnostic button 26b Confirmation button 26c Operation mode button 26d Power button 27 Indicator lamp 27a Diagnostic lamp 27b Confirmation lamp 27c Mode lamp

Claims (4)

A main body case having an inlet and an outlet;
A water storage container for storing water provided in the main body case;
An electrolysis unit that is provided in the water storage container and electrolyzes water in the water storage container;
A filter portion that is partially immersed in the water in the water reservoir;
A blower for blowing air to the filter part;
A control unit for controlling the electrolysis unit, the filter part, and the blower;
The control unit causes a current to flow through the water in the water storage container by the electrolysis unit, converts a first conductivity which is a conductivity of the water in the water storage container,
When the user presses the confirmation button, the controller causes the electrolysis unit to pass a current through the water in the water reservoir, and converts the second conductivity, which is the conductivity of the water in the water reservoir,
If the second conductivity is greater than the first conductivity,
Before the user presses the confirmation button, it is determined that sodium chloride has been added to the water in the water storage container, and the electrolysis unit, the filter part, or the blower can be operated. Air purification device to do. When the second conductivity is the same as the first conductivity, the control unit
2. The air purifier according to claim 1, wherein the user determines that he / she has forgotten to add sodium chloride into the water in the water storage container before pressing the confirmation button, and prompts the user to perform maintenance. . If the first conductivity is a conductivity within a predetermined range, the control unit
The air purifier according to claim 1 or 2, wherein the user is prompted to press the confirmation button, which is a next step provided in the main body case. 4. The air purification according to claim 1, wherein the control unit prompts the user to perform maintenance when the first conductivity is outside a predetermined range. 5. apparatus.