JP2009138359A - Sanitary washing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sanitary washing device which can inhibit the generation of a bad smell and maintain the sanitation of a toilet bowl by spraying a bactericidal metal ion with a bactericidal action into the toilet bowl and a toilet space. <P>SOLUTION: This sanitary washing device, which is equipped with an ozone water forming means, sprays ozone water, formed by the ozone water forming means, into the toilet bowl and the toilet space, so as to suppress the multiplication of microorganisms, inhibit the generation of the bad smell and maintain the sanitation of the toilet bowl. This enables the provision of the sanitary washing device which suppresses the generation of the bad smell and maintains the sanitation of the toilet bowl. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a sanitary washing device that supplies ozone water into a toilet space to keep the toilet bowl and the toilet space hygienic.

  The smell of toilet space includes excretion odor generated during excretion and ammonia odor generated when microorganisms propagate in scattered urine and microorganisms decompose urea. In addition, there are residual stool, urinary scales that are produced by the decomposition of urea in the urine by enzymes contained in bacteria, and dirt caused by the growth of microorganisms such as bacteria and mold. It adheres as colored dirt in the water line and toilet trap. The colored stains were unsanitary and generated odors due to the action of microorganisms. In order to keep the toilet bowl hygienic, as a toilet bowl cleaning device that sterilizes microorganisms that generate malodors, electrolysis that electrically elutes silver ions and copper ions as sterilizing metal ions and supplies them into the toilet bowl A toilet bowl cleaning device including a tank is known (for example, see Patent Document 1). FIG. 6 is a block diagram of a conventional toilet bowl cleaning device.

  In FIG. 6, the excrement excreted in the toilet 100 is washed with washing water through a water supply pipe 102 by opening and closing a water supply valve 101 such as a flash valve. Furthermore, a water storage type electrolysis tank 105 having at least one pair of electrodes 103 containing a metal serving as an ion source of ozone water and a float sensor 104 is connected to a toilet trap 107 of the toilet 100 via a flow control valve 106. . The electrode 103 is controlled by the control means 108, and by applying a voltage between the electrodes 103, bactericidal metal ions are eluted from the electrodes, and water containing bactericidal metal ions is supplied to the toilet trap 107. The float sensor 104 detects the water level of the water storage type electrolysis tank 105, opens and closes the electromagnetic valve 109, and supplies water to the water storage type electrolysis tank 105 from the water supply pipe 102. As metal ions having bactericidal properties, zinc ions, copper ions, silver ions and the like are used, but silver ions having a high bactericidal effect are generally used.

  By supplying sterilizing metal ions to the toilet trap 107, a continuous sterilizing effect can be obtained, and the proliferation of microorganisms generated in the toilet bowl and the toilet bowl trap is suppressed, the generation of bad odor is suppressed, and the toilet bowl is hygienic. Can keep.

In order to improve the hygiene of toilet bowls, other methods of using sterilizing metal ions have been used, and as a method of always supplying a predetermined concentration of sterilizing metal ions in the toilet trap, There are those that supply bactericidal metal ions and those that provide an electrode for eluting bactericidal metal ions in a toilet flushing water tank (see Patent Document 2). However, the method of always supplying a predetermined concentration of bactericidal metal ions in the toilet trap has a problem that the amount of bactericidal metal ions used is increased, which is uneconomical. In order to solve some of these problems and economically use expensive bactericidal metal ions, there are also those that control the timing of supplying bactericidal metal ions to a toilet (see Patent Document 3).
JP-A-11-106791 JP 2000-64389 A JP 2000-204632 A

However, in order to economically use expensive bactericidal metal ions, the conventional method of controlling the timing of supplying bactericidal metal ions to the toilet cannot control the timing of use of the toilet by the user. It was necessary to obtain a bactericidal effect in a short time. However, in order to obtain a bactericidal effect in a short time, the method of increasing the concentration of bactericidal metal ions has the problem that the amount of bactericidal metal ions used increases and is uneconomical.

  Furthermore, sterilization with disinfectant metal ions can suppress the growth of microorganisms generated in toilet bowls and toilet traps and suppress the generation of bad odors, but it has a deodorizing and deodorizing effect on odors that have already occurred. I couldn't.

  The present invention solves the above-described conventional problems, and sprays bactericidal metal ions having a bactericidal action in the toilet bowl and the toilet space, thereby suppressing the generation of bad odor and maintaining the hygiene of the toilet bowl. An object is to provide an apparatus.

  The sanitary washing device of the present invention includes ozone water generating means for generating ozone water and spraying means for spraying ozone water generated by the ozone water generating means into a toilet.

  According to the present invention, there is provided a sanitary washing device that can suppress the growth of microorganisms by spraying the ozone water generated by the ozone water generating means into the toilet bowl and the toilet space, and also suppress the generation of malodor and keep the toilet bowl hygienic. Can be provided.

  The first invention comprises ozone water generating means for generating ozone water, and spraying means for spraying ozone water generated by the ozone water generating means into the toilet space, and has a sterilizing and deodorizing action. By spraying water into the toilet bowl and the toilet space, the growth of microorganisms can be suppressed, and the generation of malodor can be suppressed and hygiene of the toilet bowl can be maintained.

  The second invention has human body detection means for detecting the presence of a person in the toilet space, and sprays ozone water into the toilet space when the human body detection means detects that the person leaves the toilet space. By adopting the configuration, spraying of ozone water on the human body can be prevented.

  According to a third aspect of the present invention, when the human body detecting means for detecting the presence of a person in the toilet space, the toilet lid of the toilet seat provided in the toilet, and the human body detecting means detect the person leaving the toilet space, A toilet lid opening / closing means for closing the toilet lid, and after detecting that the human body has left the toilet space by the human body detecting means and closing the toilet lid, ozone water is added to the space in the toilet bowl closed by the toilet lid. The odor in the toilet can be effectively deodorized by spraying ozone water into the space in the toilet closed with the toilet lid after the toilet lid is closed.

  4th invention makes it the structure which discharges ozone water from a spraying means for every predetermined time interval, and performs the disinfection deodorization in a toilet space automatically. By spraying ozone water at every predetermined time interval, the toilet space can always be kept in a sanitary state.

  According to a fifth aspect of the present invention, the ozone water generating means includes an ozone generating electrode that generates ozone by discharge, and an ozone dissolving portion that dissolves the ozone generated by the ozone generating electrode into fine bubbles and dissolves in water. The efficiency of ozone dissolution can be increased by making the gas bubbles fine.

  According to a sixth aspect of the present invention, the ozone water generating means includes a pair of electrodes and a diaphragm provided between the electrodes, and the ozone dissolution efficiency is achieved by quickly dissolving the ozone gas generated by water electrolysis after the generation. Can be increased.

  In the seventh aspect of the invention, the spray means has an ultrasonic vibrator that mists water, and ozone water can be sprayed into the toilet space as a fine mist. By spraying ozone water as mist, the contact area between ozone water and air can be increased, the deodorizing effect can be enhanced, and ozone water can be sprayed in every corner of the toilet space. .

  Hereinafter, the present embodiment will be described with reference to the drawings. In each embodiment, the same reference numerals are given to portions performing the same form and the same operation, and detailed description is saved. Note that the present invention is not limited to the present embodiment.

(Embodiment 1)
FIG. 1 shows an appearance of a sanitary washing device according to Embodiment 1 of the present invention. In FIG. 1, a sanitary washing device 10 is installed on a toilet 11 and is provided in a main body 12 of the sanitary washing device and the main body 12. , A toilet lid 13 that is automatically opened and closed electrically by a toilet lid opening / closing means (not shown), a toilet seat 14 for a user to sit on, an ozone water generating means 17 that generates ozone water and supplies it in an atomized manner. Yes. Further, a water supply pipe (not shown) for receiving supply of cleaning water from the water supply and an electric cable 15 for receiving power supply from a wall outlet are provided.

  The sanitary washing device 10 has a cleaning nozzle 16 for cleaning the local part of the human body, a drying function for drying the local part of the human body after cleaning, a room heating function for heating the toilet space when cold, and ozone on the side of the toilet 11. An ozone water generating means 17 for generating water is connected. Further, each operation is automatically operated by a remote controller 19 (hereinafter abbreviated as a remote controller) and a main body 12 attached to the wall surface. Moreover, the human body detection means 18 etc. which detect having entered and exited the toilet room are provided.

  The toilet seat 14 is provided with a seating sensor 20 as detection means for detecting the presence of the user. The seating sensor 20 detects whether a user is seated on the toilet seat 14 using infrared rays. As a method, a method for detecting the capacitance of the toilet seat, and further, infrared rays and ultrasonic waves are used. Detecting the user's seating on the toilet seat using a method, etc., or detecting the user entering or leaving the toilet room, and detecting the presence of the user in conjunction with the toilet lighting, etc. Application as a means is possible.

  Further, a flush water tank 21 is mounted on the rear upper part of the toilet 11, and washing water for draining excrement in the western toilet 10 into sewage is stored.

  FIG. 2 shows the external appearance of the remote controller 19, and ozone water is supplied from the butt washing switch 22, the bidet washing switch 23, the drying switch 24, the indicator 25 for each function, the adjustment switch 26, the stop switch 27, and the ozone water generating means. A toilet sterilization switch 28 that is manually supplied into the toilet 11 is provided. And a user's operation signal is the structure transmitted to the main-body part 12 of a sanitary washing apparatus by radio | wireless signals, such as infrared rays.

FIG. 3 is a configuration diagram illustrating a water circuit of the sanitary washing device according to the first embodiment. In FIG. 3, tap water is supplied to a sanitary washing device from a branch tap 30 connected to a water supply source 29. The tap water is supplied to the heating unit 36 through the strainer 31, the check valve 32, the constant flow valve 33, the original electromagnetic valve 34, and the flow sensor 35. The flow sensor 35 measures the flow rate to the heating unit 36 and heats it. The unit 36 is configured to heat the cleaning water for cleaning with an internal heater, and an instant water heater type that heats only during cleaning or a hot water storage type that always stores a predetermined amount of hot water by heating to a predetermined temperature is applied. it can. In the first embodiment, an instantaneous water heater type hot water unit is employed, and the heating unit 36 is composed of a plate-shaped ceramic heater and meandering internal flow paths provided on both sides thereof, and is provided at the heat exchange inlet. The supplied normal-temperature cleaning water receives heat from the ceramic heater while flowing through the meandering internal flow path, and is heated to an appropriate temperature until the outlet of the heating unit 36. In this embodiment, a plate-shaped ceramic heater with excellent heat density is used as the heater, but various heater applications such as a sheathed heater, a mica heater, and a printed heater in which a resistor is provided on the plate material can be considered. Needless to say.

  The flow rate of the hot water supplied from the heating unit 36 is adjusted by the water pump 37, and is discharged from the cleaning nozzle 16 including the buttocks nozzle 38 and the bidet nozzle 39 and the ozone water generating means 17.

  A switching valve 40 is connected to the downstream side of the heating unit 36, and the switching valve 40 includes an inlet channel 41 to which the heating unit 36 is connected, a first outlet channel 42 connected to the butt nozzle 38, and a bidet nozzle. The second outlet flow path 43 connected to 39 and the third outlet flow path 45 connected to the ozone water generating means 17 via the ozone water elution means 44 are selectively communicated by the motor 46.

  FIG. 4 shows a cross-sectional view of the ozone water generating means 17. The ozone water generating means 17 includes a water tank 50, a water level sensor 51 that detects the water level of the water tank, an ultrasonic vibrator 52 disposed at the bottom of the water tank 50, and a blowing means 58. Further, a water flow path for circulating the water in the water tank 50, a water pump 53 for circulating water in the water flow path, and an ozone dissolving part 54 including an ejector provided in the water flow path are provided. The ozone dissolving section 54 is connected to an ozone electrode 55 that generates ozone by discharge, a case 56 that houses the electrode 55, and an ozone generating section that includes a power source 57. By circulating water through the water flow path, the case 56 The inside can be set to a negative pressure, and the ozone generated at the ozone electrode 55 can be dissolved in water by the ozone dissolving portion 54. Further, as the spraying means, mist generated by the ultrasonic vibrator 52 is discharged from the water tank opening 50a and supplied to the toilet 14 and the toilet space. The blowing means 58 includes a partition wall 59 in the water tank 50. It is installed in the ventilation path 60 formed through. The water tank 50 is supplied with water from the water supply path 61 and sprays from the tank opening 50a.

  In this embodiment, the ultrasonic vibrator 52 is used as the spraying means. However, the configuration of the spraying means is not limited as long as ozone water can be sprayed in the toilet bowl and the toilet space. It is also possible to use a spray type structure that forms a high flow velocity part in the air system sent out from the water, sucks the liquid in the water tank into the low pressure (static pressure) region generated at the high flow velocity part, and atomizes it. it can.

  About the sanitary washing apparatus comprised as mentioned above, an example of the effect | action and operation | movement is demonstrated.

  When the user's exit is detected by the human body detection means 18, the toilet lid 13 is closed and a voltage is applied to the ozone electrode 55 of the ozone generating section, and ozone is generated in the case 56 by the discharge of the ozone electrode 55.

  At this time, by operating the water pump 53, the water in the water tank 50 circulates in the water flow path, and ozone generated in the case 56 can be dissolved in the circulating water as fine bubbles. Since ozone is dissolved in water as fine bubbles, ozone dissolution efficiency can be increased.

  When the ultrasonic vibrator 52 of the atomizing means 17 is operated, a mist-like water column is generated on the liquid surface of the water tank 50, and the mist-like water column is applied to the air through the blower means 58 from the outside. Water is conveyed into the toilet bowl 14 and the toilet space.

The particle size of the mist is desirably 100 μm or less. If the particle size of the mist is 100 μm or less, the sprayed mist will float as if floating in the toilet 14 and the toilet space. By spraying ozone water into the toilet space as a fine mist, the contact area between the ozone water and air can be increased, the deodorizing effect can be enhanced, and ozone water can be applied to every corner of the toilet space. It becomes possible to spray.

  The sanitary washing apparatus 10 performs a local washing, drying function, and the like by operating each operation switch of the remote controller 19 in a state where the user is seated on the toilet seat 14 and the seating sensor 20 detects the seating.

  The ozone water sprayed in the toilet bowl 14 adheres to the toilet bowl surface while drifting in the toilet bowl 14, thereby suppressing the growth of bacteria attached to the back of the rim and the like, and allowing the toilet bowl 14 surface to be bleached. At the same time, the ozone water sprayed in the toilet space can deodorize the odor of the toilet space and suppress the growth of bacteria attached to the floor and walls in the toilet.

  As described above, the sanitary washing device according to the present embodiment sprays ozone water having a sterilizing and deodorizing effect in the toilet bowl and the toilet space, thereby suppressing the growth of microorganisms and suppressing the generation of bad odor. Hygiene and hygiene of the toilet space can be maintained. In addition, after detecting the exit of the toilet room of the human body with the human body detection means, it is configured to spray ozone water in the toilet bowl space with the toilet lid closed by the toilet lid opening / closing means, thereby preventing odor diffusion in the toilet bowl The odor can be effectively deodorized.

  Moreover, when the human body detecting means detects that the person leaves the toilet space, the ozone water is sprayed into the toilet space, whereby the spraying of ozone water on the human body can be prevented.

  It should be noted that the toilet sterilization selection switch can be provided in any of the sanitary washing apparatus main body 10 in addition to the remote controller 19, but the user does not select the toilet sterilization. Even in this case, for example, the user can arbitrarily set a time zone with the least frequency of use of the toilet, etc., or learn by the device side, and automatically spray ozone water at predetermined time intervals. Thus, even when the sanitary washing device 10 is not used for a long time or for a long time, a sanitary washing device that can maintain a sanitary and clean state can be provided.

(Embodiment 2)
FIG. 5 shows a cross section of the ozone water generating means in Embodiment 2 of the present invention. In the present embodiment, the configuration of the portion that generates ozone water of the ozone water generating means is different from that of the first embodiment, and the other portions are the same in configuration and function, so the same reference numerals are given to the respective portions. Description of is omitted.

  In FIG. 5, ozone water generating means 64 includes a core electrode 62, a channel 61 provided on the outer periphery of the core electrode 62, a case 64 surrounding the channel 63, an electrode 65 provided on the inner wall of the case 64, and a channel And a spring material 66 as a flow rate variable means for changing the flow rate in 63, a water inlet 67 connected to the flow path 45 switched by the switching valve 40, and a water discharge port 68 leading to the water storage part in the tank 50. , Electrode terminals 69, 70, an O-ring 71 for sealing the flow path 61, and a DC power source 72.

Water enters from the water inlet 67 provided in the side surface position eccentric from the center of the ozone water generating means 64 configured as described above, flows into the outer periphery of the core electrode 62, and spirals along the outer periphery of the core electrode 62. The spring 66 arranged on the outer periphery of the core electrode 62 flows spirally around the outer periphery of the core electrode 62 and is discharged again from the discharge port 68 provided on the side surface. The spirally arranged springs 66 pivot at a pitch such that the cross-sectional area of the flow path that forms the pitch of the springs 66 is narrower than the cross-sectional area of the flow path that is formed between the case 63 and the core electrode 62. The configuration is to let

  As a result, the flow velocity of the swirling flow spirally flowing along the spring 66 is faster than that without the spring 66, and the flow velocity is accelerated. The cylindrical flow passage space surrounded by the case 64 and the core electrode 62 has a flow passage cross section with a large aspect ratio. If there is no spring 66, the cylindrical flow passage space is provided at the side surface position eccentric from the center of the case 64. The water that has entered from the water port 67 flows spirally along the outer periphery of the core electrode 62 in the upstream, but the swirl flow is lost as it goes downstream, and the cylindrical axial flow component gradually becomes the main component. Substantially reduces the flow rate of water.

  In this embodiment, the flow path 63 is provided on the outer periphery of the core electrode 62 by the spring 66, the flow is a swirl flow and a high flow rate state continues, and the boundary layer region between the electrode and water is very thin. Become. By accelerating the flow velocity on the electrode surface, it is possible to promote the detachment of bubbles from the electrode surface, to prevent bubble growth on the electrode surface, and to mix fine bubbles.

  When a DC voltage is applied between the core electrode 62 and the electrode 65 by the DC power source 72, water electrolysis occurs, oxygen gas, ozone gas, and chlorine gas are generated on the anode side, and hydrogen gas is generated on the cathode side.

  The gas generated by electrolysis initially forms small nuclei attached to the electrode surface, grows gradually with the progress of electrolysis, and separates from the electrode surface while coalescing with adjacent bubbles.

  The bubble growth rate depends on the current density of the electrolysis, and the bubble diameter detached from the electrode surface is related to the surface smoothness of the electrode, the flow velocity of the electrode surface, and the internal pressure state in the case 64.

  By configuring the cross-sectional area of the water outlet 68 to be smaller than that of the water inlet 67, the internal pressure in the case 64 can be increased, and bubbles generated by electrolysis can be pressurized and dissolved with a simple configuration.

  Further, by increasing the flow velocity on the electrode surface, it is possible to accelerate the detachment of the bubbles and to refine the bubbles.

  As the core electrode 62 and the electrode 65, a noble metal electrode formed by sintering or plating a noble metal such as platinum on the surface of titanium can be used. However, in order to promote the separation of bubbles, a plated electrode having a high surface smoothness is used. It is desirable to use

  Thus, according to this example, ozone obtained by electrolysis of water can be dissolved in water under pressure, high-concentration ozone water can be obtained, and a portion of the water flow path of ozone water Since the generation means can be provided, the configuration of the apparatus can be reduced in size. Furthermore, by reducing the size of the ozone water generating means, the degree of freedom of installation can be improved and the incorporation into the sanitary washing apparatus body 12 can be facilitated. Of course, a tank opening 50a for ejecting ozone water is provided in a part of the main body 12 so as to open in the toilet bowl and in the toilet space, and in a separate arrangement so that the spray form is also appropriate. It is good.

  As described above, the sanitary washing device of the present invention can suppress the growth of microorganisms using ozone water and suppress the generation of malodors. Therefore, in addition to the sanitary washing device, baths and wash kitchens where malodors are generated by microorganisms. It can also be applied to cleaning equipment around water.

External view of sanitary washing apparatus in Embodiment 1 of the present invention The perspective view of the remote control in Embodiment 1 of this invention Water circuit block diagram of the sanitary washing device in Embodiment 1 of the present invention Sectional drawing of the atomization means in Embodiment 1 of this invention Sectional drawing of the ozone water production | generation means in Embodiment 2 of this invention Configuration diagram of a conventional toilet bowl cleaning device

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Sanitary washing apparatus 12 Main body 13 Toilet lid 14 Toilet seat 16 Nozzle 18 Human body detection means 52 Ultrasonic vibrator (spraying means)
58 Blowing means (spraying means)

Claims (7)

A sanitary washing apparatus comprising ozone water generating means for generating ozone water and spraying means for spraying ozone water generated by the ozone water generating means into a toilet space. The apparatus according to claim 1, further comprising a human body detection unit that detects the presence of a person in the toilet space, and spraying ozone water into the toilet space when the human body detection unit detects a person leaving the toilet space. Sanitary washing device. A human body detection means for detecting the presence of a person in the toilet space, a toilet lid on a toilet seat provided in the toilet, and a toilet lid that closes the toilet lid when the human body detection means detects that a person has left the toilet space An opening / closing means is provided, and after detecting that a human body has left the toilet space by the human body detecting means and closing the toilet lid, ozone water is sprayed into a space in the toilet closed by the toilet lid. Or the sanitary washing apparatus of 2. The sanitary washing device according to any one of claims 1 to 3, wherein ozone water is ejected from the spraying means at predetermined time intervals to automatically perform sterilization and deodorization in the toilet space. 5. The ozone water generating means includes an ozone generating electrode that generates ozone by discharge, and an ozone dissolving portion that dissolves ozone generated by the ozone generating electrode into fine bubbles. The sanitary washing device according to the item. The sanitary product according to any one of claims 1 to 4, wherein the ozone water generating means includes a pair of electrodes and a diaphragm provided between the electrodes, and generates ozone water by dissolving ozone gas generated by electrolysis of water. Cleaning device. The sanitary washing apparatus according to any one of claims 1 to 6, wherein the spraying means includes an ultrasonic vibrator that mists water.