JP2564014B2 - Toilet bowl with ozone deodorizer - Google Patents

Description

TECHNICAL FIELD The present invention relates to a toilet bowl with an ozone deodorizing device that decomposes odorous components generated from a toilet room by ozone (O ₃ ).

[Prior Art] It has been conventionally performed to ventilate the outside of the toilet in order to remove the odor outside the toilet, but in recent years, deodorizing technology using activated carbon or ozone has come to be applied. There is. In particular, the following toilet bowl with an ozone deodorizing device has been published as a device utilizing the strong oxidizing power of ozone.

(1) As shown in FIG. 12, from the air passage inlet 4b to the air passage 4, the air inside the toilet D containing the odorous components sucked by the fan 8 and the ozone generator installed in the air passage 4 are shown. By mixing the ozone generated in 1 with ozone and reacting the odorous component and ozone in the ozone reaction section 4a,
A urinal with an ozone deodorizing device that oxidizes and decomposes odorous components to deodorize and then exhausts the odorous components to the outside E of the toilet (see, for example, JP-A-60-31719).

(2) As shown in FIG. 13, after the ozone generated by the ozone generator 1 is mixed into the air outside the toilet E sucked by the fan 8 from the air passage inlet 4b into the air passage 4, the ozone base pipe 14 , The ozone outlet pipe 15 and the ozone outlet hole 16 are used to discharge the air containing ozone into the inside D of the toilet bowl, and the toilet bowl with an ozone deodorizing device for reacting the odorous components contained in the air inside the toilet bowl D with ozone ( See, for example, JP-A-63-161228.

However, in the above-mentioned toilet bowl with ozone deodorizing device, ozone that was not involved in the odor oxidation excuse is discharged as it is to the outside E of the toilet bowl, and when the concentration is high, it adversely affects human health and when the concentration is low. However, there is an adverse effect of giving the user an unpleasant sensation and an unpleasant odor.

Therefore, in order to prevent the residual ozone from being discharged indoors, a technique of decomposing the residual ozone using an ozone decomposing device (a device made of activated carbon or the like) has come to be used (for example, Japanese Patent Laid-Open No. 61-209665). See the bulletin). This is for the ozone deodorizing device in the refrigerator.After decomposing the residual ozone with an ozone decomposing device provided with a honeycomb structure ozone decomposing filter, deodorized air without residual ozone is discharged into the refrigerator. To do.
Further, after decomposing residual ozone and residual odor components (unreacted odor components) by using a catalyst, deodorized air without residual ozone is discharged into the refrigerator. In other words, residual ozone is activated on the surface of the catalyst and dissociates into oxygen molecules and highly active oxygen atoms, and the odorous components and oxygen molecules that are also adsorbed on the surface of the catalyst react to produce no odor or odor. Change to a substance with less Further, the oxygen atoms that have not had the opportunity to react with the odorous components are bonded together by the oxygen atoms and are discharged as oxygen molecules, so that the residual ozone and the air with less residual odorous components can be discharged.

The catalyst is titanium, silicon, zirconium, manganese,
By using a composite component containing iron or the like and using the catalyst in an ozone deodorizing device, it is possible to decompose the residual ozone and efficiently decompose the residual odor component as well (for example, JP-A-63-182032). See the bulletin).

When the above technology is applied to a toilet bowl with an ozone deodorizing device, the odorous components inside the toilet bowl D are oxidatively decomposed by ozone, and the deodorized air after oxidative decomposition is passed through a catalyst to decompose residual ozone and residual odorous components. It can be discharged to the outside E of the toilet.

With such a technique, it has become possible to provide a toilet bowl with an ozone deodorizing device capable of deodorizing the odor inside the toilet bowl D without adversely affecting the health of the human body.

[Problems to be Solved by the Invention] However, in the above technique, since the ozone generator 1 or the ozone generator 1a is in the air passage 4, the ozone generator 1a is different from the air sucked from the inside D of the toilet. As a result, they had the following problems.

(1) Since the air inside the toilet D is washed with water every time it is used, it becomes high-humidity air. In the ceramic-type ozone generator 1, the ozone generator 1a made of ceramic is exposed to high-humidity air, and the ozone generation amount is Often decreases. For example, as shown in FIG. 14, when the ambient temperature is 20 ° C. and the relative humidity is 40%, and the ambient temperature is 30 ° C. and the relative humidity is 60%, the ozone generation amount is reduced to about 1/3.

(2) In the discharge-type ozone generator 1, the amount of ozone generated changes due to a change in the temperature or relative humidity of the air in the discharge space, and the insulation resistance of the discharge space decreases, especially in a high humidity environment, so that discharge is unlikely to start. In many cases, the function of the toilet with ozone deodorizer does not work.

(3) The ozone generator 1a is easily corroded because it is exposed to an organic gas in a high humidity environment, and the product life of the ozone generator 1 is often shortened.

(4) Paper dust or the like of toilet paper used at the time of stool may be deposited on the ozone generating portion, which may hinder the generation of ozone.

The present invention has been made in view of the above problems of the prior art, and an object thereof is to generate a constant amount of ozone regardless of the temperature and relative humidity inside the toilet bowl D, and It is an object of the present invention to provide a toilet bowl with an ozone generator that is hardly corroded and has excellent durability and a long product life.

[Means for Solving the Problems] In order to achieve the above-mentioned object, a toilet bowl with an ozone deodorizing device of the present invention comprises an air passage communicating between the inside of the toilet bowl and the outside of the toilet bowl,
A suction device for sucking air inside the toilet bowl to the outside of the toilet via the air passage, an ozone generator for generating ozone, and a catalyst provided near the air passage outlet, and the ozone Ozone generated by the generator,
The air sucked from the inside of the toilet is reacted in the air passage to oxidize and decompose the odorous components in the air, and the catalyst contained in the air passage further leaves the residual air contained in the air after the reaction. In a toilet bowl with an ozone deodorizing device that decomposes odors and residual ozone, an ozone generator storage box for storing the ozone generator is provided outside the air passage so that at least one side surface faces the air passage, In addition, an ozone discharge hole is provided on a side surface facing the air passage, and a vent hole or a ventilation pipe communicating with the outside of the toilet is provided on a side surface other than the side surface provided with the ozone discharge hole.

Alternatively, an ozone generator storage box for storing the ozone generator is provided outside the air passage, and a ventilation hole or a ventilation pipe and an ozone discharge passage to the outside of the toilet at an appropriate place of the ozone generator storage box. An ozone injection pipe with a hole and an ozone injection hole
The ozone injection hole is provided in the ozone discharge hole so as to come into the air passage.

Further, it is desirable that the toilet bowl with the ozone deodorizing device has a heater for heating the air in the ozone generator storing box.

[Operation] According to the toilet bowl with the ozone deodorizing device of the present invention, the air passage 4
An ozone generator 1 is housed in an ozone generator housing box 3 arranged outside the box. Further, the ozone generator 1 and the air passage 4 communicate with each other through an ozone discharge hole or an ozone injection hole 5, but the air inside the toilet D is discharged by the fan 8 to the outside E of the toilet through the air passage 4. Therefore, the air pressure of the air passage 4 becomes lower than the air pressure (atmospheric pressure) of the toilet exterior E communicated by the ventilation hole 6 or the ventilation pipe. As described above, the sucked air in the toilet interior D does not come into direct contact with the ozone generator 1. Further, the sucked air inside the toilet bowl D does not flow into the ozone generator housing box 3 and adversely affect the ozone generator.

Moreover, the ozone generator storage box 3 is provided by the heater 12.
Lowering the relative humidity by raising the temperature of the air inside the
The insulation resistance of the discharge space of the discharge-type ozone generator 1 can be increased, and as a result, the discharge-type ozone generator 1 is made to be in a state where it can always generate an appropriate amount of ozone even in a high humidity environment. Can be set.

[Examples] Hereinafter, the present invention will be described in more detail based on Examples.

FIG. 1 (a) is an upper sectional view of a toilet bowl with an ozone deodorizing device, and FIG. 1 (b) is a sectional view taken along the line aa of FIG. 1 (a).

In this embodiment, a box A having a substantially rectangular parallelepiped shape is provided behind the toilet seat B, and the box A has an air passage inlet 4b for sucking air in the inside D of the toilet C at the rear center of the toilet C. The L-shaped air passage 4 is provided so that the air passage outlet 4c for communicating with the outside E of the toilet D and discharging the air inside the toilet D to the outside E of the toilet is arranged on the right side from the above. A vent 21 for sucking the air from the toilet exterior E is communicated with the outside E of the toilet near the left end of the rear side of A, and the outside E of the toilet is communicated with the outside E of the toilet near the right end of the rear side of the rectangular parallelepiped A. A vent 10 is provided for discharging to the outside E of the toilet bowl.

Next, the outside E of the toilet is placed in the ozone generator storage box 3.
Vent hole 6 communicating with the ozone discharge hole 5 communicating with the air passage 4
So that the vent hole 6 communicates with the outside E of the toilet via the vent hole 21, and the ozone discharge hole 5 is further connected to the inlet of the air passage 4.
It was housed substantially inside the rectangular parallelepiped A so as to be located at the downstream portion of 4b. The areas of the vent hole 6 and the ozone discharge hole 5 were made sufficiently smaller than the side surface of the ozone generator housing box 3 where the vent hole 6 and the ozone discharge hole 5 were provided in order to increase the flow velocity.

Next, the ozone generator 1 is housed in the ozone generator housing box 3, the transformer 2 is placed close to the ozone generator housing box 3, and wiring connected to the transformer 2 is provided on the side surface of the ozone generator housing box 3. Penetrate,
It was connected to the ozone generator 1.

Next, the catalyst 7 is arranged at the air passage outlet 4c, and the fan motor 9 is arranged on the right side surface of the toilet C of the rectangular parallelepiped A from the rear side. The shaft of the fan motor 9 and the shaft hole of the fan 8 are arranged. Pivoted. The fan motor 9 used had a suction air volume of 200 NL / Min. With this amount of air, the air containing the odorous component inside the toilet D does not diffuse to the outside E of the toilet, and the wind speed passing near the thighs is slow, so the user does not feel cold at the same time. This is because the noise of the fan 8 can be suppressed low.

I repeatedly used the toilet bowl with the ozone deodorizing device configured as described above.
Almost no corrosion was observed. It was confirmed that ammonia decomposed on average at 52%.

Although the catalyst 7 is used in this embodiment, an ozone decomposing device may be used instead of the catalyst 7. Further, an air pipe may be provided in the ozone generator storage box instead of the vent hole 6.

In this embodiment, one ozone outlet 5 is shown, but a plurality of ozone outlets 5 may be provided as shown in FIG. Also,
As shown in FIG. 3, the ozone generator storage box 3 may be arranged so as to project from the wall surface of the air passage 4 so as to throttle the air flow in the air passage 4. Further, as shown in FIG. 4, a semi-cylindrical throttle portion 20 may be provided on the wall surface of the air passage 4 so as to throttle the air flow in the air passage 4, and as shown in FIG. 4 and FIG. As shown, the throttle unit 20 may be used as the ozone generator storage box 3. As a result of using the toilet bowl with ozone deodorizing device configured as shown in FIG. 4 and FIG. 5, an average of 57% decomposition of ammonia was confirmed, and another implementation in which the throttle portion 20 was not provided in the air passage 4 An average of 5% improvement in deodorizing capacity was observed over the toilet bowl with ozone deodorizing device.

Although the semicylindrical throttle section 20 is provided in this embodiment, an orifice or nozzle may be provided in the air passage 4.

Another embodiment of the toilet bowl with ozone deodorizing device of the present invention is shown in FIGS. 6 to 9.

FIG. 6 (a) is an upper sectional view of a toilet bowl with an ozone deodorizing device, and FIG. 6 (b) is a sectional view taken along the line aa of FIG. 6 (a).
FIG. 6C is a sectional view taken along the line bb in FIG. 6A.
In FIG. 6, the ozone generator housing box 3 is provided with a vent hole 6 and an ozone discharge port 5 communicating with the outside of the toilet, and then an ozone injection pipe 19 is provided so that the ozone injection hole 19a is located downstream of the air passage inlet 4b. As described above, the ozone discharge port 5 is provided. Other configurations were the same as those in the above-mentioned embodiment.

FIG. 7 is a cross-sectional view of the ozone injection pipe 19 having a plurality of ozone injection holes 19a, the ozone generator housing box 3 and the air passage 4. As shown in FIG. 7, the ozone injection pipe 19 is provided with four ozone injection holes 19a vertically arranged so that ozone generated by the ozone generator 1 is uniformly distributed in the air passage 4.

FIG. 8 is a vertical cross-sectional view of the air passage 4 in which semicylindrical throttle portions are provided above and below the air passage 4 so as to throttle the air flow in the air passage 4, and the ozone injection pipe 19 is further inserted. FIG. 9 (a) is a vertical sectional view of the air passage 4 in which the ozone injection pipe 19 is embedded in the throttle portion 20, and FIG. 9 (b) is a sectional view taken along the line cc of FIG. 9 (a). It is a figure.

FIG. 10 shows an ozone generator 3, a transformer 2 and a heater.
12 is a circuit diagram of 12. FIG. As shown in FIG. 10, the heater 12 was arranged downstream of the ventilation hole 6 so that the air warmed by the heater 12 passed through the ozone generator 1 (discharge type).

In a high-humidity environment, since discharge cannot be performed at the start and ozone cannot be generated, the relative humidity must be lowered by raising the temperature of the ozone generator housing box 3 by the heater 12. For example, the temperature of the air in the ozone generator storage box 3 is 20 ° C and the relative temperature is 80%.
At this time, in order to bring the relative temperature of the heater 12 to 50%, the temperature of the air in the ozone generator storage box 3 is set to
It is necessary to raise it to around 28 ° C. On the other hand, if the temperature of the air in the ozone generator housing box 3 is raised too high, the amount of ozone generated will decrease as shown in FIG. Therefore, in the embodiment, the heater 12 is set so that the temperature of the air in the ozone generator housing box 3 is raised from 5 ° C. to 8 ° C. above the temperature of the outside E of the toilet.

In this embodiment, the heater 12 is arranged in the ozone generator housing box 3, but the heater is arranged in the ozone generator 1 itself.
Twelve can be installed.

In the toilet bowl with the ozone deodorizing device configured as described above,
Even in a high humidity environment, the ozone generator has come to operate all the time.

FIG. 11A shows a temperature sensor 17, a controller 13,
FIG. 11 is a circuit diagram of the ozone generator 1, the transformer 2 and the heater 12, and FIG. 11B is a circuit diagram of the humidity sensor 18, the controller 13, the ozone generator 1, the transformer 2 and the heater 12. As shown in FIG. 11 (a), a temperature sensor 17 is arranged in the upper part on the downstream side of the ozone generator 1 housed in the ozone generator housing box 3, and a controller arranged outside the ozone generator housing box 3. Connected to 13. A heater (heater) 12 connected to the controller 13 was arranged above the ozone generator 1 on the upstream side.

On the other hand, when the humidity sensor 18 is provided,
As shown in FIG. 2B, the ozone generator 1 is arranged on the downstream upper side, and the controller 13, the heater 12 and the transformer 2 are arranged in the same manner as in the case where the temperature sensor 17 is arranged.

It is also possible to dispose both the temperature sensor 17 and the humidity sensor 18.

A constant value can be obtained for the ammonia decomposition rate in the toilet bowl with the ozone deodorizing device configured as described above.

In the above example, the ozone generator 1 having the ceramic ozone generator 1a was used, and the catalyst 17 was composed of titanium oxide and silicon oxide in a molar ratio of 1: 1. The composition was such that the percentage was 90% and the manganese oxide was 10%.

[Effects of the Invention] As described above, according to the toilet bowl with the ozone deodorizing device of the present invention, the ozone generator storage box for storing the ozone generator is arranged outside the air passage, so that the inside of the toilet bowl is high. A large amount of ozone can be generated without being affected by humid air. Further, since the ozone generator is not exposed to the organic gas under the high humidity environment, the ozone generator is not corroded. As a result, the deodorizing power of the ozone generator is improved, and the toilet bowl with the ozone generator having excellent durability and long product life can be provided.

Further, since the heater can raise the temperature of the air in the ozone generator housing box to lower the relative humidity, it is possible to provide a toilet bowl with an ozone generator that always operates stably even in a high humidity environment. .

[Brief description of drawings]

FIG. 1 (a) is an upper sectional view showing an embodiment of a toilet bowl with an ozone deodorizing device, FIG. 1 (b) is a sectional view taken along the line aa in FIG. 1 (a), and FIG. 3 is a horizontal cross-sectional view of an ozone generator storage box and an air passage having an ozone discharge hole formed therein, FIG. 3 is a vertical cross-sectional view of an air passage in which the ozone generator storage box is disposed in the air passage, FIG. FIG. 5 is a vertical cross-sectional view of the air passage in which the ozone generator head box is embedded in the throttle portion, and FIG. 6A is an upper cross-sectional view showing another embodiment of the toilet bowl with the ozone generator. b) is a in FIG. 6 (a)
-A sectional view of the section a, Fig. 6 (c) is c- in Fig. 6 (a)
FIG. 7 is a cross-sectional view of a section c, FIG. 7 is a cross-sectional view of an ozone injection pipe having a plurality of ozone injection holes, an ozone generator storage box and an air passage, and FIG. 8 is an air passage through which the ozone injection pipe is inserted. Fig. 9 (a) is a transverse cross-sectional view, Fig. 9 (a) is a vertical cross-sectional view of an air passage in which an ozone injection pipe is embedded in a throttle portion, and Fig. 9 (b) is a cross-sectional view taken along the line cc of Fig. 9 (a). FIG. 10 is a circuit diagram showing a relationship between an ozone generator, a transformer and a heater (heater), and FIG. 11 (a) is a circuit diagram showing a relationship between a temperature sensor, a controller, an ozone generator, a transformer and a heater. FIG. 11 (b) is a circuit diagram showing the relationship between the humidity sensor, the controller, the ozone generator, the transformer and the heater, and FIG. 12 is a conventional example in which ozone and odorous components are reacted inside the toilet seat inscribed. Front sectional view of a toilet bowl with ozone deodorizer, Fig. 13 Fig. 14 is a front sectional view of a conventional toilet bowl with an ozone deodorizing device for reacting ozone and odorous components inside the toilet bowl, and Fig. 14 is a characteristic diagram showing the relationship between ozone generation amount and relative humidity. D: Inside the toilet, E: Outside the toilet, 1 ... Ozone generator, 3 ... Ozone generator storage box, 4 ... Air passage, 4c ... Air passage outlet, 5 ... Ozone discharge hole, 6 ... …
Vent hole, 7 ... Catalyst, 8 ... Suction device, 12 ... Heater,
19 ... Ozone injection tube, 19a ... Ozone injection hole

Claims (3)

(57) [Claims] 1. An air passage for communicating the inside of the toilet with the outside of the toilet, a suction device for sucking the air inside the toilet to the outside of the toilet through the air passage, and an ozone generator for generating ozone. An odor in the air by reacting ozone generated by the ozone generator with air sucked from the inside of the toilet in the air passage, the catalyst having a catalyst provided near the outlet of the air passage. In a toilet bowl with an ozone deodorizing device that decomposes components by oxidative decomposition and further decomposes residual odor and residual ozone contained in the air after reaction by a catalyst installed in the air passage, ozone for accommodating the ozone generator A generator storage box is provided outside the air passage so that at least one side surface faces the air passage, and ozone is provided on the side surface facing the air passage. The provided, ozone deodorizing device with a toilet, characterized by further provided with vents or ventilation pipe leading to the toilet bowl outside the side surfaces other than the side surface provided with the ozone discharge hole Deana. 2. The ozone generator storage box is provided outside the air passage, and a ventilation hole or a ventilation pipe and an ozone discharge hole communicating with the outside of the toilet are provided at an appropriate location of the ozone generation storage box. 2. The toilet bowl with an ozone deodorizing device according to claim 1, wherein an ozone injection pipe having an injection hole is provided in the ozone discharge hole so that the ozone injection hole comes into the air passage. 3. A heater for heating the air in the ozone generator storage box is provided.
Or the toilet bowl with the ozone deodorizing device according to 2.