JP2021063647A - Space sterilization and purification device - Google Patents

Abstract

To provide a space sterilization and purification device capable of surely sterilizing outside air taken from surrounding in a simple filter configuration.SOLUTION: A space sterilization and purification device comprises: a draft air duct communicating a suction port 18 and an exhaust port 20 with each other; a water tank which is disposed within a housing; electrolytic means which generates electrolytic hypochlorous acid water by performing electrolytic treatment upon salinity containing water stored therein; a sterilization filter; sterilization means 48 which causes the filter to contain hypochlorous acid vaporized from the electrolytic hypochlorous acid water by soaking the filter with the electrolytic hypochlorous acid water generated by the electrolytic means; a HEPA filter 32 for dust removal which is disposed inside of the draft air duct closer to the suction port than the sterilization filter; and ventilation means which successively blows air through the HEPA filter and the sterilization filter and generates an air stream to be exhausted from the exhaust port inside of the draft air duct. Outside air is sterilized by the electrolytic hypochlorous acid water and the hypochlorous acid which is vaporized from the electrolytic hypochlorous acid water, in gas-liquid contact inside of the sterilization filter, and exhausted in the state where the vaporized hypochlorous acid is contained, thereby sterilizing a space around the housing.SELECTED DRAWING: Figure 3

Description

Detailed description of the invention

The present invention relates to a space sterilization cleaning device that sterilizes and cleans the surrounding space in which the device is installed.

Various ideas have been incorporated into air purifiers and humidifiers. For example, in the humidifier described in Patent Document 1, the water in the humidifying water tank is electrolyzed to generate electrolyzed water containing hypochlorous acid, and this hypochlorous acid is used for disinfecting the water in the water tank and the humidifying filter. doing. In the humidifier described in Patent Document 2, a part of the humidifying water is electrolyzed to generate electrolyzed water, and this electrolyzed water is made into a mist, placed on humidified air and dissipated to the outside of the machine, thereby indoors. It is useful for disinfecting and deodorizing air.

In the case described in Patent Document 1, the humidified part can be sterilized, but the indoor air cannot be sterilized or deodorized. In the case described in Patent Document 2, the indoor air can be sterilized and deodorized, but due to its structure, the indoor air cannot be sterilized and deodorized unless it is humidified.

Therefore, a patent application using both Patent Documents 1 and 2 as prior art has been filed as Patent Document 3 by the same applicant as the applicants of both Patent Documents 1 and 2.

Japanese Unexamined Patent Publication No. 2006-57995 (International Patent Classification: F24F6 / 00) Japanese Patent Application Laid-Open No. 2009-216320 (International Patent Classification: F24F6 / 16, F24F7 / 00, C02F1 / 46) Japanese Unexamined Patent Publication No. 2011-137605 (International Patent Classification: F24F6 / 00)

However, in the humidifier described in Patent Document 3, although the outside air introduced with the air purifying filter 21 was certainly sterilized, the concentration of hypochlorous acid water producing the humidified air was as small as 1 ppm. The sterilization function is not substantially attached, and the concentration of the hypochlorous acid water of the electrolyzed water mist released into the room by the electrolyzed water mist generator 65 is 5 ppm, and the sterilization is mainly performed by this electrolyzed water mist. The device is complicated, and there has been a strong demand for improvement in which a reliable sterilization effect can be obtained with a simple structure.

Further, as described in [0020] in the specification of Patent Document 3, "The air purifying device 20 is composed of an air purifying filter 21. The air purifying filter 21 is a coarse dust filter, a deodorizing filter, and fine dust. It is a combination of filters and the like. ”There is no description about the specific specifications, and there is no description that suggests this.

Further, in Patent Document 3, when the air humidified by the humidifier is discharged into the room, the purpose is only to achieve dust removal of the moist air, and the air is not subjected to humidification. When the electrolyzed water is collected in the humidifying water storage tank 57, fine dust contained in the outside air is mixed into the electrolyzed water, and the water stored in the humidifying water storage tank 57 is contaminated with fine dust. It was a situation that could not be prevented. In particular, when the water stored in the humidifying water tank 57 is contaminated with fine dust, the electric resistance value of the water increases, the voltage at the time of electrolysis cannot be sufficiently obtained, and hypochlorous acid water is generated. The problem of inefficiency was pointed out, and a solution was strongly requested.

According to the present invention, in a space sterilization cleaning device that sterilizes and cleans a space using electrolyzed hypochlorite water, the efficiency of producing hypochlorous acid water due to fine dust is deteriorated by a simple mechanism. It is an object of the present invention to provide a space sterilization cleaning device that can be reliably prevented.

Further, the present invention is a space sterilization cleaning device that sterilizes and cleans a space using electrolyzed hypochlorite water, and has a simple filter structure to reliably sterilize the surrounding space. A further object is to provide a disinfectant cleaning device.

In order to achieve the above object, the space sterilization cleaning device according to the present invention, according to the description of claim 1, is a blower that communicates the housing and the intake port and the exhaust port formed in the housing with each other. The road, the water storage tank arranged in the housing, and the electrolytic hypochlorous acid water in which hypochlorous acid and hypochlorous acid are dissolved by electrolytically treating the salt-containing water stored in the water storage tank. The electrolytic means to be generated, a sterilization filter disposed so as to be ventilated in the air passage, and the sterilization filter are impregnated with the electrolytic hypochlorous acid water generated by the electrolytic means, and the electrolytic hypochlorite is contained. A disinfecting means for containing hypochlorous acid volatilized from chlorinated water, a dust removing HEPA filter arranged so as to allow ventilation in the air passage on the intake port side of the disinfecting filter, and the above. It is provided with a ventilation means that is introduced from the intake port, sequentially ventilates the HEPA filter and the disinfection filter, and generates an air flow exhausted from the exhaust port in the air passage, and takes in air from the intake port. When the sterilized filter is ventilated, the sterilized outside air is sterilized by the electrolyzed hypochlorite water and the hypochlorous acid volatilized from the electrolytic hypochlorous acid water in gas-liquid contact in the sterilization filter. The sterilized air is exhausted to the outside of the housing from the exhaust port in a state containing volatilized hypochlorous acid, and the volatilized hypochlorous acid in the exhausted air is the space around the housing. It is characterized by eradicating bacteria.

By configuring the space sterilization cleaning device according to claim 1 in this way, the outside air taken into the air passage from the intake port is first dusted to fine dust by a HEPA filter, thereby removing the dust. The hypochlorite water contained in the sterilization filter is surely prevented from being contaminated by this fine dust, and as a result, the surplus of the hypochlorite water supplied to the sterilization filter after ventilation. When the hypochlorite water is collected in the water tank, the hypochlorite water from which fine dust has been removed is collected in the water tank. Therefore, the hypochlorous acid water collected in the water tank prevents the water in the water tank from being contaminated with fine dust, a sufficient voltage during electrolysis is secured, and the hypochlorous acid water is generated. Efficiency will be maintained well. In addition, the outside air after ventilation of the HEPA filter is produced by the electrolytic hypochlorous acid water and the hypochlorous acid volatilized from the electrolytic hypochlorous acid water that have been in gas-liquid contact in the sterilization filter when the sterilization filter is passed. The sterilized and sterilized air is exhausted to the outside of the housing from the exhaust port in a state containing volatilized hypochlorous acid, and the volatilized hypochlorous acid in the exhausted air is generated around the housing. The space will be sterilized, and the sterilization efficiency of the surrounding area will be dramatically improved.

Further, according to the second aspect of the space sterilization cleaning device according to the present invention, the HEPA filter contains hypochlorous acid contained in the outside air when the outside air taken in from the intake port is ventilated. It is characterized by being sterilized by acid.

By configuring the space sterilization cleaning device according to claim 2 in this way, when the air taken in from the intake port is passed through the HEPA filter, fine dust is removed by the HEPA filter and bacteria are removed. And viruses will also be captured here, but the captured bacteria and viruses will be sterilized by hypochlorous acid contained in the outside air, and the HEPA filter will surely prevent it from becoming a hotbed for bacteria and viruses. Will be done.

Further, according to the description of claim 3, the space sterilization cleaning device according to the present invention sterilizes and does not sterilize bacteria and viruses floating in the surrounding space by the hypochlorous acid contained in the exhausted air. It is characterized by sterilizing and inactivating bacteria and viruses adhering to the surface of articles existing in the leading space.

By configuring the space sterilization cleaning device according to claim 3 in this way, bacteria and viruses floating in the surrounding space are sterilized and inactivated, and bacteria adhering to the surface of the article existing in the surrounding space are sterilized and inactivated. And the virus is surely sterilized and inactivated, and the sterilization of the space is effectively achieved.

Further, the space sterilization cleaning device according to the present invention is characterized in that, according to the description of claim 4, the HEPA filter is formed so as to exhibit the dust removal ability of PM2.5.

By configuring the space sterilization cleaning device according to claim 4 in this way, fine dust of PM2.5 is removed, and fine PM2.5 is added to the hypochlorous acid water collected in the water tank. It will surely prevent dust from being mixed.

Further, according to the description of claim 5, the space sterilization cleaning device according to the present invention is the electrolytic hypochlorite water supplied to the sterilization filter, and the surplus electrolytic hypochlorite in the sterilization filter. Further equipped with a recovery means for recovering the chlorinated water in the water tank, the water tank is provided with electrolyzed hypochlorous acid water in contact with the air dust-removed by the HEPA filter, and excess electrolyzed next in the sterilization filter. It is characterized by being recovered as chlorinated water.

By configuring the space sterilization cleaning device according to claim 5 in this way, fine dust contained in the outside air introduced into the device is removed, and the hypochlorous acid water collected in the water tank is fine. It will surely prevent the mixing of dust.

Further, the space sterilization cleaning device according to the present invention is characterized in that, according to the sixth aspect, the HEPA filter is arranged so as to cover the entire blown area of the blower path. ..

By configuring the space sterilization cleaning device according to claim 6 in this way, the entire blown area of the air passage is covered with a HEPA filter, so that the outside air introduced into the device is surely HEPA. It will be dust-removed by the filter.

Further, according to the description of claim 7, the space sterilization cleaning device according to the present invention is arranged so as to be able to ventilate in the air passage on the intake port side of the HEPA filter, and is coarse in the outside air. It is characterized by further providing a deodorizing filter for removing dust and house dust as well as deodorizing.

By configuring the space sterilization cleaning device according to claim 7 in this way, the sterilization cleaning air exhausted from this device is further deodorized, and the surroundings where this device is installed are installed. The air quality of the space will be further improved.

Further, according to the description of claim 8, the space sterilization cleaning device according to the present invention is characterized in that the deodorizing filter contains activated carbon.

By configuring the space sterilization cleaning device according to claim 8 in this way, since the deodorizing filter contains activated carbon, the sterilizing cleaning air exhausted from this device is more reliably deodorized. This will ensure that the air quality in the surrounding space where this device is installed will be further improved.

According to the present invention, in a space sterilization cleaning device that sterilizes and cleans a space using electrolyzed hypochlorite water, the efficiency of producing hypochlorous acid water due to fine dust deteriorates with a simple mechanism. A space sterilization cleaning device that can surely prevent the above will be provided.

Further, according to the present invention, in a space sterilization cleaning device that sterilizes and cleans a space using electrolyzed hypochlorite water, the surrounding space can be reliably sterilized with a simple filter structure. A space sterilization and cleaning device that can be used will be provided.

It is a perspective view which looked at the appearance of the space sterilization cleaning apparatus which concerns on embodiment of this invention from the front. It is a perspective view which looked at the appearance of the space sterilization cleaning apparatus of FIG. 1 from the rear. It is an exploded perspective view which shows the internal structure of the space sterilization apparatus of FIG. It is a vertical cross-sectional view of the space sterilization cleaning apparatus of FIG. It is a vertical cross-sectional view of the space sterilization cleaning apparatus of FIG. 1, in which the viewpoint is placed in the direction opposite to that of FIG. 2 and the cross-sectional portion is different. It is a horizontal sectional view of the space sterilization cleaning apparatus of FIG. It is a perspective view of the water receiving pan of the space sterilization apparatus holding state, which is inserted into the housing of the space sterilization purification apparatus of FIG. It is a vertical cross-sectional view of the space sterilization cleaning apparatus of FIG. 1, and is the cross-sectional view in the direction perpendicular to FIGS. 2 and 3. It is a vertical cross-sectional view of the water receiving pan in the state of holding the space sterilizer. It is a vertical cross-sectional view of the water receiving pan in the state of holding the space sterilizer, and is cross-sectional view at the position of line AA of FIG. It is a vertical cross-sectional view of a water receiving pan in a state of holding an air sterilizer, and is a cross-sectional view taken at the position of line BB in FIG. It is a perspective view of the water receiving pan in the state of not holding the air sterilizer. It is a top view of the water receiving pan in the state of holding the air sterilizer. It is a top view of the water receiving pan in a state where the air sterilizer is not held. It is a vertical cross-sectional view of the water receiving pan in the state of not holding the air sterilizer. It is a perspective view of the blower seen from the back side. It is a vertical cross-sectional view of the space sterilization cleaning apparatus similar to FIG. 6, and is the figure which shows the viewpoint in the direction opposite to FIG.

Hereinafter, the configuration of one embodiment of the space sterilization cleaning device according to the present invention will be described in detail with reference to FIGS. 1 to 17 of the attached drawings.

First, the terms in this embodiment will be described as follows. First, the "space" used in this embodiment refers to the surrounding space in which the space sterilization cleaning device 10 of this one embodiment is installed, and is not only the space as an area but also the surrounding space. It shall also include existing articles. In addition, "sterilization" (sterilization in a broad sense) used in this one embodiment means sterilization of bacteria floating in the surrounding space where it is installed (sterilization in a narrow sense), inactivation of viruses, and existence in the surrounding space. Sterilization of bacteria adhering to the surface of the article (sterilization in a narrow sense) and inactivation of viruses, and sterilization of bacteria trapped in a filter through which air taken in from the surrounding space passes through the device 10 (sterilization in a narrow sense). It shall mean inactivation of bacteria) and viruses. Further, "cleaning" used in this embodiment means removing house dust, cigarette smoke, fine dust of PM2.5, odors such as pets and body odors existing in the surrounding space. In addition, "tap water" used in this one embodiment is a term defined as a subordinate concept of "water containing salt" as a superordinate concept.

As shown in FIGS. 1 to 3, the space sterilization and cleaning device 10 of this embodiment includes a housing 12 that is flat in the front-rear direction and whose front surface is completely open, and the housing 12 is opened. It is provided with a front cover 14 that covers the entire front surface so as to be openable. In the following description, the orientation expression used in the description of the housing 10 is defined as the left side of the paper surface and the right side of the paper surface in FIG. The directional expressions used to explain the other components shall follow this.

As shown in FIGS. 1 and 3, an operation panel 16 is arranged in front of the upper surface of the housing 10. On the operation panel 16, a group of switches for inputting various commands and a group of lamps for displaying the operating status and other information of the space sterilization and cleaning device 10 are arranged. The switch group is composed of a membrane switch, and the lamp group is composed of a light emitting diode (LED).

Further, as shown in FIG. 3, a slit-shaped intake port 18 extending in the lateral direction is provided on the bottom edge of the front surface of the front cover 14, and recesses extending in the vertical direction are provided on both side edges thereof. The shape of the intake port 18 is formed, and as shown in FIGS. 1 and 2, the exhaust port 20 is formed behind the upper surface of the housing 12. An upper louver 21 that opens the exhaust port 20 so as to be able to close the exhaust port 20 is attached to prevent fingers and the like from being inserted from the exhaust port 20 and prevent dust from entering the device.

As shown in FIGS. 4 and 5, an air flow path (air passage) 22 having an intake port 12 at one end and an exhaust port 20 at the other end is formed inside the housing 12. In the air flow path 22, an air purifier 24, an air sterilizer 26, and a blower 28 are arranged in this order from the upstream side starting from the intake port 18 to the downstream side ending from the exhaust port 20. There is.

As specifically shown in FIG. 3, the air purifying device 24 is arranged on the most upstream side of the air flow path 22, and has coarse dust in the outside air (air) introduced (intaken) from the intake port 18 into the device 10. A deodorizing filter 30 that removes house dust and the like and deodorizes odor through activated carbon, and a PM2.5 class HEPA filter as a dust removing filter interposed between the deodorizing filter 30 and the opening of the housing 12. 32 and a pollen filter 33 for adsorbing pollen, which are arranged over the entire surface on the front surface (upstream side surface in the ventilation direction) of the HEPA filter 32, are provided, and are configured as a triple structure. The pollen filter 33 is made of a fairly thin mesh material, cannot independently hold its shape, and is attached while being sandwiched between the deodorizing filter 30 and the HEPA filter 32. In FIG. 3, for convenience, it is drawn in a state of being attached to the front surface of the HEPA filter 32.

The blower 28 forms an air flow that is sucked in from three intake ports 18 and discharged from the exhaust port 20. The sirocco fan 34, the motor 36 that rotates the sirocco fan 34, and the fan that surrounds the sirocco fan 34. It is configured to include a casing 38. The fan casing 38 is formed with a discharge port 38a (the shape is best shown in FIG. 16) connected to the exhaust port 20.

Next, the structure of the air sterilizer 26 will be described in detail with reference to FIGS. 4 to 17. The air sterilizer 26 is provided with a water supply device 40 that supplies tap water to the air sterilizer 26. The water supply device 40 is configured around a drawer-type water receiving pan 42 that is detachably inserted from the right side surface of the housing 12. The right side surface of the water receiving pan 42 and the cover 44 detachably attached to the right side surface thereof form a part of the outer shell of the housing 12. A recess 46 for hanging the operator's hand is formed on the right side surface of the water receiving pan 42.

As shown in FIGS. 7 to 12, the water receiving pan 42 includes a sterilization mechanism 48 (which will be described in detail later) constituting the air sterilization device 26, and a water supply tank 50 in which about 5 liters of tap water is stored. Is configured to support. In addition to storing tap water, salt is mixed in this water supply tank in order to maintain a high concentration of electrolyzed hypochlorous acid. Originally, chlorine is inevitably mixed in tap water, and the hypochlorous acid produced by this device is made from chlorine originally mixed in this tap water. However, since the chlorine concentration differs depending on the regional waterworks bureau, salt is mixed in to ensure the minimum chlorine concentration for producing hypochlorous acid.

Purified salt for home use is sufficient as the salt, and the amount of the salt mixed is, for example, about half a teaspoon per 5 liters of tap water in order to produce a high concentration (35 ppm) of hypochlorous acid. Needless to say, in tap water having a high chlorine concentration, it may not be necessary to mix salt. On the other hand, when using this space sterilization cleaning device 10 in a foreign country, especially in the Middle Eastern countries where purified water is used as tap water, tap water does not contain salt, so it is essential to mix salt. Become.

As shown in FIGS. 3 and 6, the right end of the water receiving pan 42 is untreated to receive tap water (hereinafter, referred to as tap water at the end) additionally mixed with salt supplied from the water supply tank 50. A water storage tank 52 is formed. The untreated water storage tank 52 is formed with a protrusion 54 that pushes open a valve (not shown) of the water supply tank 50.

When the water supply tank 50 containing tap water is set on the untreated water storage tank 52 of the water receiving pan 42 in this way, a valve (not shown) of the water supply tank 50 is pushed open by the protrusion 54, and a predetermined water level is set as described later. (The water level line WL shown in FIGS. 9 to 11) is configured so that tap water is supplied to the water receiving pan 42.

As shown in FIG. 14, in the water receiving pan 42, in addition to the untreated water storage tank 52, the hypochlorite water generation water storage tank 56 and the sterilization water storage tank 58 are each partitioned by partition walls. ing. The water tank 56 for producing hypochlorous acid water is a tank for storing untreated water (tap water) supplied from the water supply tank 54, which is converted into hypochlorous acid water by electrolysis, and is used for sterilization. The water storage tank 58 is for storing the hypochlorous acid water from the hypochlorite water generation water storage tank 56 as sterilization water to be supplied to the air sterilization device 26.

A first communication portion 52a is formed between the untreated water water tank 52 and the hypochlorous acid water generation water tank 58, and the hypochlorous acid water generation water tank 56 and the sterilization water tank 58 are formed. A second communication portion 56a is formed between the two. The water level of each water tank is kept the same by these communication portions 52a and 56a. The communication portions 52a and 56a are each composed of small holes penetrating the partition wall.

At the left end of the hypochlorite water generation water tank 56, untreated water (tap water) that flows from the untreated water water storage tank 52 into the hypochlorite water generation water tank 56 through the communication portion 52a is electrolytically treated. A hypochlorous acid water generator 60 for generating electrolytic hypochlorous acid water is arranged. The hypochlorous acid water generation device 60 is a control device that applies a predetermined voltage between a pair of electrodes 62 immersed in water in a water tank 56 for generating hypochlorous acid water and a predetermined voltage between both electrodes 62 to pass an electric current. (Detailed description will be omitted.)

As shown in FIG. 11, a connector 66 for supplying an electric current to the hypochlorite water generator 60 is attached to the outer surface of the left end of the water receiving pan 42. Here, when the water receiving pan 42 is pushed all the way into the housing 12, the connector 66 engages with a connector (not shown) provided inside the housing 12, and is connected to a power supply and a control device (not shown) to form hypochlorite. Power can be supplied to the acid water generator 60.

On the other hand, as shown in FIG. 12, the water receiving pan 42 is paired from the upper end of the side wall on the front side of the water tank 58 for sterilization and the upper end of the side wall on the front side of the water tank 56 for producing hypochlorous acid water. The columns 68 are erected so as to face each other. A U-shaped bearing portion 70 that opens upward is formed at the upper ends of the surfaces of the columns 68 that face each other. A support shaft 72e (described later) of the sterilization device 48 is rotatably supported on both bearings 70.

Subsequently, the structure of the sterilization mechanism 48 as the main component of the air sterilization device 26 will be described. The sterilization mechanism 48 includes a wheel 72 shaped like a water wheel. The wheel 72 has a hub 72a at the center and a rim 72b at the periphery, and has a structure in which the hub 72a and the rim 72b are firmly connected by a plurality of front spokes 72c and a plurality of rear spokes 72d.

More specifically, as shown in FIG. 8, the wheel 72 includes a hubcap 721 having a front spoke 72c, a rim 72b, and an inner hub 72a1, a rear spoke 72d, an outer hub 72a2, and a later description. It is configured to include a wheel cap 72m having an input gear 72f, and is configured by fitting the wheel cap 72m to the wheel base 721 and fitting and connecting the hubs 72a1 and 72a2 to each other. The hub 72a is a combination of the inner and outer hub portions 72a1 and 72a2.

A support shaft 72e protrudes from the hub 72a in the front-rear direction, and the wheel 72 is rotatably supported around the horizontal axis by dropping both ends of the support shaft 72e into the bearing portions 70 of both columns 68.

The wheel 72 is provided with a sterilization unit 74 (see FIG. 9). The disc-shaped sterilization filter 76 mainly constitutes the sterilization unit 74. The sterilization filter 76 is made of a material having both water retention capacity and ventilation, for example, a net or a non-woven fabric, and is attached to the front surface of the spoke 72d on the back side.

The sterilization filter 76 is not attached as a flat plate, but is attached so as to exhibit a predetermined undulating (three-dimensional) shape. In a preferred embodiment, as shown in FIG. 8, the central portion of the sterilization filter 76 is extruded toward the front spokes 72c to form a conical surface 76a around it.

More specifically, the rear spokes 72d of the wheel 72 are provided with ribs 72i having an inclined surface 72h for forming the conical surface 76a, while the back side of the front spokes 72c faces the inclined surface 72h. A rib 72k having the same inclined surface 72j as the inclined surface 72h is provided at the position. Then, when the wheelbase 72l and the wheel cap 72m are connected, the sterilization filter 76 is sandwiched between the ribs 72i and 72k to form the sterilization filter 76 into a predetermined undulating (three-dimensional) shape that is not flat.

On the rim 72b of the wheel 72, a plurality of buckets 78 (six in the figure) having one side opened are arranged at regular angular intervals. Each bucket 78 may have a separate component attached to the rim 72b, or may be integrally molded with the rim 72b.

All buckets 78 are arranged with their openings oriented in one direction. When the wheel 72 rotates and the bucket 78 moves to the bottom of the rim 72b, the bucket 78 sinks into the sterilized water of the sterilizing water tank 58, and the sterilized water infiltrates into the bucket 78. Then, when the wheel 72 rotates and the bucket 78 rotates so that the opening of the bucket 78 faces upward due to its own weight, the bucket 78 pumps up the sterilized water. As the bucket 78 comes to the top of the rim 72b and its opening turns sideways, the pumped disinfectant water drops. Here, the conical surface 76a of the sterilization filter 76 interferes with the falling path of the sterilization water, and the sterilizing water to be dropped flows out onto the sterilization filter 76.

Here, the motor 80 for rotating the wheel 72 is supported not by the water receiving pan 42 but by the partition wall 12a (see FIG. 7) inside the housing 12. The motor 80 has an output gear 80a. The output gear 80a meshes with the intermediate gear 82 supported by the partition wall 12a like the motor 80. An input gear 72f integrally molded or fixed to the outer peripheral portion of the wheel cap 72m of the wheel 72 meshes with the intermediate gear 82. The input gear 72f meshes with the intermediate gear 82 when the water receiving pan 42 is pushed all the way into the housing 12.

An enclosure 84 (see FIG. 7) surrounds the wheel 72, and the inside of the enclosure 84 communicates with the intake port 38b of the fan casing 38 described above. The enclosure 84 is composed of a partial enclosure 84a integrally molded on the partition wall 12a and a partial enclosure 84b integrally molded on the water receiving pan 42. When the water receiving pan 42 is pushed all the way into the housing 12, the partial enclosure 84b is joined to the partial enclosure 84a, and the enclosure 84 is set to be completed.

In the space sterilization cleaning device 10 configured as described above, the operation of the space sterilization cleaning device 10 will be described next.

First, if sufficient tap water remains in the water supply tank 50, the inside of each of the untreated water storage tank 52, the hypochlorite water generation water storage tank 56, and the sterilization water storage tank 58 is shown in FIG. ~ A state in which water has accumulated up to the height of the water level line WL shown in FIG. 11 respectively. If the water in the water supply tank 50 is low and the water level is lower than the water level line WL, a sensor (not shown) detects it, and the operation panel 16 displays a water shortage indication. When the operator sees the indication of water shortage, the operator removes the cover 44, takes out the water supply tank 50, and replenishes tap water in the water tank 50. When the water supply tank 50 is placed on the water receiving pan 42 after the tap water is replenished, the water level is restored to the height of the water level line WL by the tap water flowing out from the water supply tank 50, and the indication of water shortage disappears. If the removed cover 44 is refitted, the space sterilization and cleaning device 10 can be operated.

On the other hand, when the space sterilization cleaning device 10 is operated in the normal mode described in detail later, power is supplied to the motor 36 of the blower device 28, the electrode 62 of the hypochlorite water generator 60, and the motor 80 of the sterilization mechanism 48. , And these components start operation according to the control contents determined by the control device, although detailed description will be given.

After that, when a predetermined voltage (for example, 10 V) is applied to the electrode 62 of the hypochlorous acid water generator 60, the energization control described in detail later is also executed, so that the untreated water storage tank 52 The untreated water (tap water) that has flowed into the hypochlorous acid water generation water tank 56 is electrolyzed (electrolyzed) to become hypochlorous acid water, that is, electrolytic hypochlorous acid water.

Next, prior to the description of the operation, the operation mode set by the space sterilization cleaning device 10 will be described with reference to Table 1 below. As shown in Table 1, the space sterilization cleaning device 10 is in a situation where three modes of "normal mode", "strong mode" and "standby mode" can be set as operation modes. The mode is set by using the mode setting button, although the details of the operation panel 16 provided on the upper surface of the housing 12 are not shown.

The normal mode (A) indicates the normal operation mode of the space sterilization cleaning device 10, and more specifically, the "standard mode", the "automatic mode", the "eco-automatic mode", and the "rapid mode". , "Silent mode" can be set, but it does not constitute the feature of this embodiment, and the control operation is executed in the state where the electrolytic setting is higher-level conceptualized as "normal mode". The description of is omitted.

When the space sterilization and cleaning device 10 is used to sterilize and clean the air in the room where the space sterilization and cleaning device 10 is installed, the normal mode (A) is set on the operation panel 16, and the normal mode (A) is set. ), That is, as the content of the energization control to the electrode 62, as shown in FIG. 20A, the length of the period during which the energization to the electrode 62 is stopped is the length of the current flowing between the electrodes 62. Control to set longer than the energization time, specifically, repeated control of "6 minutes energization, 54 minutes pause" is executed, and the energization direction is alternately reversed with an energization stop period in between, so that the energization direction is changed. The reversal is set to be executed during the power stop period. The current value when the electrode 62 is energized is basically 0.248 (A), and although detailed explanation is omitted, the water supply stored in the water tank 56 for producing hypochlorous acid water is omitted. It is set to be changed and controlled in the range of 0.24 (A) to 0.252 (A) according to the salt concentration of water. Further, the voltage value when the electrode 62 is energized is set to be 10 (V) or less. Here, in this normal mode, that is, as the drive control of the motor 80, the rotation of the sterilization filter 76 is set to be a pause of 2 minutes and a rotation of 3 minutes.

On the other hand, in the situation where the strong mode (B) is set on the operation panel 16, the electrolysis setting, that is, the content of the energization control to the electrode 62, is as shown in FIG. Control to set the length of the stopped period to a time shorter than the energization time of the current flowing between the electrodes and 62, specifically, the repetitive control of "9 minutes energization, 1 minute pause" is executed, and at the same time. With an energization stop period in between, the energization directions are alternately reversed, and the reversal of the energization direction is set to be executed during the energization stop period. The current value and voltage value when the electrode 62 is energized are set in the same manner as in the above-mentioned normal mode (A), while in this strong mode (B), that is, as drive control of the motor 80. , The rotation of the sterilization filter 76 is set to be continuous operation.

Further, the standby mode (C) is a mode set when the power is turned off, and in this device 10, even if the power is turned off, the internal control is not turned off, as shown in Table 1. , It is set so that the energization control is performed only once every 8 hours for 6 minutes. This is because if all control operations are stopped due to the power being turned off, bacteria and viruses trapped in the HEPA filter 32 may be activated and proliferate, and the sterilization filter 76 is sterilized from above. A control procedure for this standby mode is specified to prevent the water from drying out and impairing the sterilization property of the sterilization filter 76 itself. When the normal mode (A) or the strong mode (B) is set from the standby mode (C), the set mode is activated. Further, in this standby mode (C), when the power of the device 10 is pulled out, the control operation naturally stops.

Here, the main feature of this embodiment is that, as a mode of energizing the electrode 62, when the normal mode (A) is set, the rest time is as shown in FIG. 20 (A). Is executed for energization control set longer than the energization time, specifically, 6-minute energization and 54-minute pause repeated control, and the energization direction is alternately reversed with an energization stop period in between. The reversal of the energization direction is set to be executed during the energization stop period. That is, first, if the polarity (energization direction) reverse switching control is not performed and the current is always in only one direction, scale adheres to the surface of the electrode 62 and the electrolysis efficiency is lowered. , Is a well-known control that has been performed for some time.

However, if the energization direction is reversed, the following problems will occur as it is. That is, when the direction of energization is reversed from positive energization to negative energization, the total value of the absolute values of the current values of +0.248 (A) and -0.248 (A) is 0.496 on the electrode 62. The overcharged charge (excessive charged charge) based on the surge current of (A) remains, and when re-energized, the catalyst layer 62b of the electrode 62 is an electrode based on the remaining overcharged charge. It is vulnerable to damage such as poor non-attachment that peels off from the main body 62a.

If the catalyst layer 62b is peeled off from the electrode body 62a, the surface area of the electrode 62 that contributes to the electrolysis operation is reduced by that amount, the electrolysis efficiency is lowered, and there is no reattachment. , The peeled state progresses as the electrolytic operation progresses. Therefore, when the energization direction is reversed, a stop period is once provided, in other words, by performing the energization direction switching control during this energization stop period, the electric charge charged on the electrode 62 is +0.248 (A). Alternatively, the value is based on the surge current of 0.248 (A), which is the absolute value of the current value of −0.248 (A). That is, the value is halved as compared with the case where the above-mentioned energization stop period is provided, and the damage to the electrode 62 is surely reduced. As described above, in the situation where the normal mode (A) is set, the effect of surely extending the life of the electrode 62 and maintaining the electrolytic operation for a long period of time is achieved.

Moreover, the electric charge charged on the electrode 62 is spontaneously discharged due to an exponential change with the passage of time, and is usually reduced to the extent that there is almost no effect after a lapse of several minutes. It is a thing. In view of this, in the normal mode (A) of this embodiment, the energization stop time is set to "54 minutes", which is significantly longer than the energization time, and the charge charged on the electrode 62 during energization is generated. It is sufficiently spontaneously discharged and substantially disappears to prevent damage to the electrode 62. In this way, in the situation where this normal mode (A) is set, the electrode 62 is set to maintain the required concentration of electrolytic hypochlorous acid while minimizing the damage received when the electrode 62 is energized. ing.

On the other hand, in the state where the strong mode (B) is set, the energization control in which the pause time is set shorter than the energization time in order to forcibly increase the production concentration of electrolytic hypochlorous acid, specifically, the energization control is set. , 9 minutes energization, 1 minute pause repeated control is executed, and the energization direction is alternately reversed with an energization stop period in between, as in the normal mode (A), and this reversal of the energization direction is energization. It is set to run during the downtime. That is, in the situation where this strong mode (B) is set, the control in which the production concentration of the electrolytic hypochlorous acid water is prioritized is executed. Here, the energization stop period in the strong mode (B) is set to "1 minute", and the charge charge of the electrode 62 when the energization is stopped for a long time as compared with the above-mentioned normal mode (A). Natural discharge is not expected. Even so, the amount of charge charged on the electrode 62 is compared with the conventional reverse energization control of the energization direction, as compared with the direct reverse energization from plus to minus or minus to plus in the energization direction during the energization stop period. Is halved, so that this alone leads to suppression of damage to the electrode 62 as compared with the conventional case. As described above, even in the situation where the strong mode (B) is set, the effect of extending the life of the electrode 62 and maintaining the electrolytic operation for a long period of time is achieved.

It is a control that closes the eyes that some damage is given to the electrode 62 by executing such energization control in the strong mode (B), but in this strong mode (B), the electrode In order to minimize the damage of 62, after 40 minutes have passed from the setting of this strong mode (B), the setting of the strong mode (B) is forcibly canceled and the setting is set to return to the normal mode (A). Has been done.

Here, the process of generating electrolytic hypochlorite water and hypochlorous acid (ions) from tap water mixed with salt by performing the above-mentioned energization control on the electrode 62 will be described below.
First, since tap water contains chlorine, the following electrochemical reaction occurs.
<Anode side>
4H ₂ O-4e- → 4H ++ O ₂ ↑ + 2H ₂ O
2Cl ⁻ → Cl ₂ + 2e ⁻
H ₂ O + Cl ₂ ← → HClO + H ⁺ + Cl ⁻
<Cathode side>
4H ₂ O + 4e ⁻ → 2H ₂ ↑ + 4OH ⁻
<Between electrodes>
_{^{H + + OH - → H 2}} O

_{By the above reaction, hypochlorous acid (HClO) and active oxygen (O 2} ↑), which have a bactericidal action, that is, a bactericidal action of bacteria and an inactivating action of viruses, and a deodorizing action, are produced, and this hypochlorous acid Electrolyzed hypochlorous acid water is produced as an aqueous solution. That is, hypochlorous acid is volatilized and released into the air, and at the same time, it dissolves in water to generate electrolyzed hypochlorous acid water.

The electrolyzed hypochlorite water in the hypochlorite water generation water tank 56 flows into the sterilization water tank 58 through the second communication portion 56a. The water tank 58 for sterilization was generated at a concentration (for example, 15 ppm in the normal mode (A) and 35 ppm in the strong mode (B)) at which the hypochlorite water generator 60 sufficiently exerts the sterilization function. Electrolyzed hypochlorous acid water will be stored as sterilized water.

On the other hand, the motor 80 constituting the sterilization mechanism 48 rotates the wheel 72 at a predetermined slow rotation speed. The rotation direction of the wheel 72 is counterclockwise in FIG. 10 when the wheel 72 is viewed from the front side, and clockwise in FIG. 11 when the wheel 72 is viewed from the rear side. As the wheel 72 rotates in this direction, the bucket 78 repeats the operation of pumping the sterilized water from the sterilization water tank 58 and applying it to the sterilization filter 76 from above.

Here, when the sirocco fan 32 rotates by energizing the motor 80, an air flow of intake port 18 → air purifier 24 → air sterilizer 26 → blower 28 → exhaust port 20 is generated in the air flow path 22. To do.

Specifically, when the air (outside air) sucked from the intake port 18 passes through the deodorizing filter 30 of the air purifying device 24, the odor is deodorized through activated carbon and coarse dust and house dust are removed. When passing through the subsequent pollen filter 33, pollen in the air is adsorbed, and finally, when passing through the HEPA filter 32 composed of a HEPA filter, fine dust, bacteria and viruses of PM2.5 are mostly captured. Will be cleaned.

Here, the bacteria and viruses captured by the HEPA filter 32 will remain in the HEPA filter 32 in the state of being captured here, and will be accumulated in the HEPA filter 32 with time. In other words, the HEPA filter 32 can capture bacteria and viruses, but on the contrary, the problem of becoming a "hotbed" for bacteria and viruses has been strongly pointed out. However, as a feature of this example, as described above, hypochlorous acid water (hypochlorous acid water stored in the sterilization water tank 58 and hypochlorous acid contained in the sterilization filter 32) Hypochlorous acid volatilized from (acid water) is brought to the sterilization filter 32, and by containing it, bacteria and viruses trapped in the HEPA filter 32 are sterilized and inactivated by the hypochlorous acid. Literally, it is in a state of being sterilized and cleaned, and the fact that the HEPA filter 32 becomes a hotbed of bacteria and viruses can be effectively suppressed.

As described above, when the air (outside air) sucked from the intake port 18 passes through the deodorizing filter 30 of the air purifier 24, the bacteria and viruses contained in the air (outside air) are first activated carbon. Some of them may be adsorbed on the surface and trapped here, but even if a situation occurs in which they are trapped by activated carbon, they have the same effect as the action of hypochlorous acid in the above-mentioned HEPA filter 32. Is also applied to the deodorizing filter 30, so that the possibility that the deodorizing filter 30 in which bacteria and viruses are trapped becomes a hotbed of bacteria and viruses is effectively suppressed.

Further, this hypochlorous acid is sterilized by the hypochlorous acid water as described above when the sterilization filter 76 is ventilated, and also contains the volatile hypochlorous acid in the sterilization filter 76. In this state, the air containing the volatilized hypochlorous acid is discharged into the room through the exhaust port 20 after passing through the disinfection filter 76 on the air flow, and then again from the intake port 18 to the space disinfection cleaning device 10. It will be taken in (taken in). In this way, the air containing hypochlorous acid taken into the air flow passage 22 from the intake port 18 passes through the HEPA filter 32 again. Then, the bacteria and viruses trapped in the HEPA filter 32 are sterilized by the hypochlorous acid contained in the air passing through the HEPA filter 32. As described above, in this embodiment, by repeating the above air flow, the bacteria and viruses trapped in the HEPA filter 32 are basically sterilized by hypochlorous acid, as in the past. The problem that the HEPA filter 32 becomes a hotbed of bacteria and viruses will be completely solved.

In the air purified by the air purifying device 24 in this way, most of the bacteria are sterilized by the HEPA filter 32 and the virus is inactivated, but even so, the air that has passed around (side) the HEPA filter 32 still flows. Bacteria and viruses in the air that existed and passed through will remain, but the air that has passed through the HEPA filter 32 in this way then enters the air sterilizer 26 and passes through the sterilization filter 76. At that time, the sterilization filter 76 is hung from above via the sterilization mechanism 48 and comes into gas-liquid contact with the hypochlorite water held inside, and passes through the sterilization filter 76. Bacteria and viruses remaining in the air will be sterilized and inactivated almost completely by the hypochlorite water.

On the other hand, the air that comes into gas-liquid contact with hypochlorous acid water as sterilizing water and contains hypochlorous acid is exhausted from the exhaust port 20 to the outside of the device 10 by the blower device 28, and the device 10 It is released into the surrounding space, and the surrounding space is sterilized. Specifically, hypochlorous acid contained in the exhaust exhausted from the exhaust port 20 kills various bacteria (floating) existing in the space around the device 10 and inactivates the virus. At the same time, bacteria and viruses adhering to the surface of equipment and parts existing in the surrounding space are also sterilized and inactivated by hypochlorous acid contained in the exhaust exhausted from the exhaust port 20, that is, removed. It will be sterilized.

On the other hand, in the sterilized water (hypochlorous acid water) applied to the sterilization filter 76 from above, the surplus that could not be held by the sterilization filter 76 falls downward due to its own weight, and the sterilization water storage tank. It will be recovered in 58 and will be subjected to the above-mentioned sterilization operation again. Here, in the sterilized water recovered from the sterilization filter 76, the air passing through the sterilization filter 76 is cleaned by removing fine dust by the HEPA filter 32, and is sterilized. Naturally, it is a clean sterilized water that does not contain fine dust. As a result, the sterilized water that has fallen from the sterilization filter 76 and is collected in the sterilized water storage tank 58 is used to remove the sterilized water that has already been stored in the sterilized water storage tank 58 with fine dust, bacteria, and viruses. Contamination with, etc. will be effectively prevented.

By collecting the sterilized water from the sterilization filter 76 in this way, the sterilized water in the sterilized water storage tank 58 is constantly replenished and only the minimum amount required for sterilization is consumed. As a result, it is possible to achieve the effect that the load at the time of generating the sterilized water in the sterilized water generator 60 is effectively suppressed.

Further, the sterilized water collected from the sterilization filter 76 is cleaned by removing even fine dust by the HEPA filter 32, and since it is sterilized, it is stored in the sterilization water storage tank 58. The sterilized water is not contaminated with fine dust, bacteria, viruses, etc., and is communicated to the sterilized water storage tank 58 via the second communication portion 56a. Contamination of the hypochlorous acid water stored in 56 with fine dust, bacteria, viruses, etc. is also effectively suppressed. As a result, as in the conventional case, the electrolyzed water contaminated with fine dust is mixed in, so that the electric resistance value is increased and the applied voltage required for electrolysis must be increased. It is possible to achieve the effect of improving the success rate of electrolyzed water.

In the configuration of the embodiment described above, since the suction force rather than the discharge force of the blower 28 acts on both the air purifier 24 and the air sterilizer 26, the air sterilizer 26 does not become a large resistance. The effect that the decrease in the amount of air blown is small is achieved. Further, since it is the sterilizing water that wets the sterilizing filter 76, the sterilizing filter 76 itself can be sterilized.

Further, in the configuration of this embodiment, the normalized air passing through the sterilization filter 76 is impregnated with sterilized water, and the indoor space can be sufficiently sterilized and deodorized by itself. Therefore, neither the conventional mist generator nor the mist blower is required, and the configuration of the entire device 10 can be simplified, downsized, and the cost can be reduced.

When the space sterilization cleaning device 10 is used for a long period of time, minerals in the water adhere to the places where the water comes into contact as scales. In the configuration of the embodiment, since the points where water comes into contact are gathered around the water receiving pan 42, if the water receiving pan 42 is pulled out, the parts requiring water-related maintenance can be easily taken out of the housing 12. be able to. This facilitates maintenance.

Although the embodiments of the present invention have been described above, the present invention is not limited to this, and it goes without saying that various modifications can be made without departing from the gist of the present invention. Further, it goes without saying that the numerical values used are merely examples, and the present invention is not limited to adopting the numerical values used in the description of the embodiments.

The present invention contributes to sterilization and cleaning of a room, and is used not only in a general household room but also in a bedroom, a hospital room, an operating room, a treatment room, etc. of a medical facility, etc., for business use. Needless to say, it can be widely used for improving the environment of rooms (spaces) where personnel gather, such as offices.

10 Space sterilization cleaning device 12 Housing 14 Front cover 16 Operation panel 18 Intake port 20 Exhaust port 22 Air flow path 21 Louver 24 Air cleaning device 26 Air sterilization device 28 Blower 30 Deodorizing filter 32 HEPA filter 33 Pollen filter 34 Sirocco fan 36 Motor 38 Fan casing 38a Discharge port 38b Intake port 38c Sub-discharge port 40 Water supply device 42 Water receiving pan 44 Cover 46 Recess 48 Sterilization mechanism 50 Water supply tank 52 Untreated water water storage tank 52a First communication part 54 Protrusion 56 Water tank for hypochlorite water generation 56a Second communication part 58 Water tank for sterilization 60 Hypochlorite water generator 62 Electrode 62A Electrode body 62B Catalyst layer 66 Connector 68 Strut 70 Bearing 72 Wheel 72a Hub 72a1 Inside Hub 72a2 Outer hub 72b Rim 72c Front spoke 72d Rear spoke 72e Support shaft 72f Input gear 72l Wheel base 72m Wheel cap 72h Inclined surface 72i Rib 72j Inclined surface 72k Rib 74 Sterilization part 76 Disinfection filter 76a Conical surface 78 Bucket 34A Engagement 80 Motor 80a Output gear 82 Intermediate gear 84 Enclosure 84a Partial enclosure 84b Partial enclosure

Claims (8)

With the housing
An air passage that communicates the intake port and the exhaust port formed in this housing with each other,
A water tank arranged in the housing and
Electrolyzed means that electrolyzes salt-containing water stored in this water tank to generate electrolyzed hypochlorous acid and electrolyzed hypochlorous acid water in which hypochlorous acid is dissolved.
A sterilization filter arranged so as to allow ventilation in the air passage,
The sterilization filter is impregnated with the electrolytic hypochlorous acid water generated by the electrolytic means, and the sterilization means for containing the hypochlorous acid volatilized from the electrolytic hypochlorous acid water.
Rather than this sterilization filter, a HEPA filter for dust removal, which is arranged so as to allow ventilation in the air passage on the intake port side,
An air blowing means introduced from the intake port and sequentially ventilating the HEPA filter and the sterilization filter to generate an air flow exhausted from the exhaust port in the air passage.
Equipped with
The outside air taken in from the intake port is the hypochlorous acid volatilized from the electrolyzed hypochlorous acid water and the electrolyzed hypochlorous acid water that are in gas-liquid contact in the sterilization filter when the sterilization filter is ventilated. Is sterilized by
The sterilized air is exhausted to the outside of the housing from the exhaust port in a state containing volatilized hypochlorous acid, and the volatilized hypochlorous acid in the exhausted air is the space around the housing. A space sterilization cleaning device characterized by sterilizing. The space sterilization cleaning device according to claim 1, wherein the HEPA filter is sterilized by hypochlorous acid contained in the outside air when the outside air taken in from the intake port is ventilated. .. The hypochlorous acid contained in the exhausted air sterilizes and inactivates bacteria and viruses floating in the surrounding space, and also sterilizes and inactivates bacteria and viruses adhering to the surface of articles existing in the leading space. The space sterilization cleaning device according to claim 1, wherein the space sterilization cleaning device is used. The space sterilization cleaning device according to claim 1, wherein the HEPA filter is formed so as to exhibit the dust removal ability of PM2.5. Of the electrolyzed hypochlorite water supplied to the sterilization filter, the sterilization filter is further provided with a recovery means for recovering excess electrolyzed hypochlorite water in a water tank.
Claim 1 is characterized in that, in the water storage tank, the electrolyzed hypochlorous acid water in contact with the air dust-removed by the HEPA filter is recovered as excess electrolyzed hypochlorous acid water in the sterilization filter. The space sterilization cleaning device described in. The space sterilization cleaning device according to claim 5, wherein the HEPA filter is arranged so as to cover the entire surface of the air blowing area of the air passage. The HEPA filter is further provided with a deodorizing filter which is arranged so as to be able to ventilate in the air passage on the intake port side and for removing and deodorizing coarse dust and house dust in the outside air. The space sterilization cleaning device according to claim 1. The space sterilization cleaning device according to claim 7, wherein the deodorizing filter contains activated carbon.

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