JP3206771B2 - Toilet seat device with ozone generator for deodorization - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ozone generator for deodorization provided in toilet equipment, and more particularly to a toilet seat device which suppresses electromagnetic noise caused by electric discharge.

[0002]

2. Description of the Related Art Conventionally, multifunctional toilet seat devices having the functions of local cleaning, drying and heating toilet seats have been used. This toilet seat device generally has a toilet seat attached to a casing fixed to the toilet body, and a built-in washing nozzle device, a piping unit for supplying washing water, a hot air fan for drying, and a controller inside the casing. Structure.

In addition to such a function, a deodorizing device for eliminating an unpleasant odor during stool has also been incorporated into a casing. As an example of this deodorizing device, an air intake passage having a portion facing a ball portion of a toilet bowl is formed in a casing and a suction fan is incorporated. For example, an ozone generator and a catalyst are installed in the air intake passage for deodorization. There are things to prepare for.

[0004] The ozone generator has a function of converting oxygen in the air into ozone by electric discharge. For example, an ozone generator proposed by the present applicant and published as Japanese Utility Model Publication No. 4-29629 is disclosed. is there.

FIG. 6 is a sectional view showing an outline of the ozone generator.

The ozone generator has two electrodes 51a and 51b and one discharge electrode 52 on a dielectric substrate 50, and applies an AC high voltage for discharge to the electrodes 51a and 51b to discharge the electrodes 52a and 51b. And discharge between them.
In addition, since the dielectric substrate 50 is generally formed of ceramics, the surface thereof is porous, and a heating chip is provided on the surface of the dielectric substrate 50 in order to prevent occurrence of trouble due to adhesion of moisture. A resistor 53 is provided.
Then, heat is generated by energizing the chip resistor 53 to dissipate the attached moisture or evaporate the dew condensation water, thereby maintaining a high discharge efficiency.

[0007]

When using such an ozone generator by discharge, it is widely known that electromagnetic noise at the time of discharge may damage other electric equipment. Such electromagnetic noise goes out of the casing of the toilet seat device when the high-voltage electric wire for applying voltage to the electrodes 51a and 51b and the heater wire of the chip resistor 53 serve as an antenna, so that the electromagnetic noise goes out of the television. And radio.

In order to suppress the electromagnetic noise, it is conceivable to reduce the emission of the electromagnetic noise by, for example, coating a high-voltage electric wire with carbon or the like. However, when such an electric wire coated with carbon is used, the entire electric wire is hard and the outer diameter becomes large, so that the wiring work is troublesome and the degree of freedom of wiring is reduced.

On the other hand, if the inner wall of the casing is specially processed to have an electromagnetic shielding structure in order to confine the electromagnetic noise inside the casing, it is possible to suppress disturbance to external electric equipment. However, the electromagnetic noise from the ozone generator has a considerably wide frequency band, and therefore, it is often impossible to cope with the electromagnetic noise with a simple electromagnetic shield.

On the other hand, the ozone generator described above is provided with a heat-generating chip resistor 53 in order to prevent a decrease in discharge efficiency due to moisture or the like. When the chip resistor 53 is energized, it becomes a source of electromagnetic noise at the time of discharge, and the noise becomes larger than that without the chip resistor 53. However, the chip resistor 53 is a component that cannot be omitted from the viewpoint of discharge efficiency.

As described above, the existence of the chip resistor 53 is one obstacle in reducing the electromagnetic noise, and the chip resistor 53 is indispensable for maintaining the discharge efficiency. Therefore, if the design presupposes that the chip resistor 53 is provided to maintain the discharge efficiency, a new structure for suppressing electromagnetic noise is required.

The problem to be solved in the present invention is to maintain the discharge efficiency of the ozone generator high and at the same time to suppress the generation of electromagnetic noise.

[0013]

According to the present invention, an ozone generator is provided in an exhaust passage from a ball portion of a toilet body, and the ozone generator heats and maintains the dielectric substrate to evaporate dew water. A toilet seat device provided with a heating means for discharging the ozone generator, wherein a control system for turning off the power supply to the heating means during a power supply period for discharging to the ozone generator is provided. .

[0014] Further, there is provided seat detecting means for detecting that a person is seated on the toilet seat, and based on a signal from the seat detecting means, the start of the supply of electricity to the ozone generator and the supply of electricity to the heating means. A control system for performing the stop may be provided.

[0015]

The dielectric substrate of the ozone generator is continuously kept warm by the heating means during a period in which no discharge occurs, so that the adhered water can be dissipated and dew condensation water can be evaporated and eliminated, resulting in high discharge efficiency in the discharge process. Is maintained.

Further, in the discharging process, since the power supply to the heating means is stopped, the generation source of the electromagnetic noise is reduced corresponding to the heating means, and the influence of the external electromagnetic noise is suppressed.

Further, when the seating detection means detects that the user is sitting on the toilet seat, the control to stop the power supply to the heating means and start the discharge is performed, so that the power supply to the heating means overlaps with the discharge. And the increase in electromagnetic noise can be reliably suppressed.

[0018]

1 is a perspective view of a toilet apparatus provided with a toilet seat device according to the present invention.

In the figure, the toilet seat device 1 fixed to the upper surface of the toilet body 60 is a so-called "hot water toilet seat" having a conventionally known local washing function, and its casing 1
a is equipped with a toilet seat 1b and a toilet lid 1c.

FIG. 2 is a front vertical sectional view showing a substantially right half of the inside of the casing 1.

Inside the casing 1, a nozzle device 2a for local cleaning, a hot air fan 2b for drying, and the like are accommodated.
A deodorizing mechanism is incorporated at the right end. These devices and other functional units are operated by switches on an operation panel 1 d provided on the casing 1, and the control is performed by a controller built in the casing 1.

The deodorizing mechanism comprises a ball portion 61 of the toilet body 60
A deodorizing duct 3 having an open surface facing the air, wherein a scavenging fan 4, an ozone generator 5 and a catalyst 6 are provided in the deodorizing duct 3.
It is constituted as what incorporates.

The deodorizing duct 3 has a suction port 3a opened on the surface facing the ball portion 61, an exhaust flow path is formed to the bottom on the right side of the casing 1a, and the end thereof is an exhaust port 3b. And this deodorizing duct 3 is made of synthetic resin,
The inner wall has a plating layer 3 for reducing electromagnetic noise.
It is assumed that c has been applied. The plating layer 3c is made of, for example, aluminum plating, and enables electromagnetic shielding of radiation noise when the ozone generator 5 discharges.

The scavenging fan 4 is driven to rotate by a drive motor 4a fixed outside the deodorizing duct 3, and the suction port 3
It has a function of discharging air deodorized by sucking air from a through the exhaust port 3b.

The catalyst 6 contains a deodorizing liquid and an aromatic liquid such as manganese oxide for reducing ozone, volatile glyoxal, and methacrylic fragrance. Then, deodorizing and aroma are performed by bringing the scavenging air flow into contact with these contents.

The ozone generator 5 has the same configuration as that shown in FIG. 6, is provided with electrodes 51a and 51b and a discharge electrode 52 on a dielectric substrate 50, and removes moisture and evaporates dew water. Is provided with a heating chip resistor 53 for heating. The electrodes 51a and 51b are
The leads 5a and 5b are connected to a driver 5c disposed outside the deodorizing duct 3, and the chip resistor 53 is connected to other power supplies by leads 5d and 5e.

FIG. 3 is a block diagram showing the relationship of each functional unit with respect to the deodorizing mechanism.

The deodorizing mechanism is controlled by a controller 7 built in the casing 1a that controls all the other functions including the nozzle device 2a and the hot air fan 2b. When the deodorizing switch of the operation panel 1d is turned on, the drive motor 4a operates and the scavenging fan 4 starts rotating. At the same time, a high voltage is applied to the electrodes 51a and 51b by the driver 5c, and Discharge occurs between the two.

Here, the dielectric substrate 50 of the ozone generator 5
The chip resistor 53 functioning as a heating means for heating and maintaining the temperature is controlled so as to stop energization during the discharge period. This is because if the power supply to the chip resistor 53 is continuously performed during the discharge for generating ozone, the degree of generation of the electromagnetic noise increases as described in the section of the related art. By doing so, it is intended to suppress electromagnetic noise.

On the other hand, the operation of the deodorizing mechanism in response to the operation of the ozone generator 5 is often performed on a large scale and most of the time when a person sits on the toilet seat 1b. It is convenient to control on the basis of sitting and non-sitting. That is, the toilet seat 1b is provided with a pressure-sensitive or optical type seating sensor 1e for detecting that a person is sitting, and the seating signal is input to the controller 7 so that the person can sit on the toilet seat 1b. During this period, the power supply to the chip resistor 53 is stopped, and the degree of occurrence of electromagnetic noise is reduced.

FIG. 4 is a flowchart showing the outline of such control, and FIG. 5 is a time chart of the operation of the seat sensor 1e, the chip resistor 53 and the driver 5c.

During a period in which a person is not sitting on the toilet seat 1b, the chip resistor 53 is continuously energized by a drive circuit 5f including a switching relay and the like, and heats and keeps the temperature of the dielectric substrate 50 to keep moisture. The dielectric substrate 50 is made to stand by so as to dissipate and obtain a good discharge efficiency.
After the seating sensor 1e detects that the person is sitting on the toilet seat 1b, the energization of the chip resistor 53 is kept off until the person leaves the toilet seat 1b.

On the other hand, the driver 5c keeps the ON state in response to the period in which the person is sitting on the toilet seat 1d. In this period, the discharge is performed between the electrodes 51a and 51b and the discharge electrode 52, and the driver 5c is in the air. Oxygen is ozonated. If the drive motor 4a is also operated in accordance with the seating period of the person by the seat sensor 1e, the scavenging fan 4 sucks the air containing the off-flavor in the ball portion 61 into the deodorizing duct 3 and generates ozone. Catalyst 6 after being ozonized by vessel 5
And after being deodorized and perfumed, is discharged from the exhaust port 3b.

As described above, the power supply to the chip resistor 53 is stopped in synchronization with the period when the ozone generator 5 is operating and discharging. For this reason, before the ozone generator 5 is used, the dielectric substrate 50 is sufficiently kept warm by the chip resistor 53, so that ozone generation with high discharge efficiency can be performed without being hindered by moisture, dew condensation, or the like. It becomes possible.
In addition, during the generation of ozone, the generation of electromagnetic noise due to the lead wires 5d and 5e of the chip resistor 53 is eliminated.
The amount of noise as a whole is suppressed. Therefore, electromagnetic noise emitted to the outside can be reduced, and the influence on television and radio can be reduced.

The deodorizing mechanism can be operated by manual operation using a switch on the operation panel 1d.
In this case, if the operation is performed during a period in which a person is sitting on the toilet seat 1b, the power supply to the chip resistor 53 can be adjusted to a period during which the chip resistor 53 is turned off, and similarly, the amount of generated electromagnetic noise can be reduced. Can be.

[0036]

According to the present invention, during the discharge period of the ozone generator, the power supply to the heating means for evaporating the dew condensation water is stopped, so that the amount of electromagnetic noise generated is smaller than when the power supply is continued. Can be suppressed. This eliminates obstacles to television and radio,
It can be used appropriately as household equipment.

Further, if the start of discharge and the stop of the heating means are automatically performed in accordance with the period when a person is sitting on the toilet seat, the degree of occurrence of electromagnetic noise can be suppressed at all times,
It can be used comfortably without troublesome operations.

[Brief description of the drawings]

FIG. 1 is a perspective view of a toilet facility provided with a toilet seat device of the present invention.

FIG. 2 is a front vertical sectional view showing an internal structure of a casing on a right half of the toilet seat device.

FIG. 3 is a block diagram schematically illustrating control for operation of a deodorizing mechanism.

FIG. 4 is a flowchart showing control on the operation of the ozone generator.

FIG. 5 is a time chart showing a relationship between energization to a heating unit and discharge of an ozone generator, based on detection of seating by a seating sensor as a reference.

FIG. 6 is a cross-sectional view of an example of an ozone generator used conventionally, which is also applied to the deodorizing apparatus of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Toilet seat device 5a, 5b Lead wire 1a Casing 5c Driver 1b Toilet seat 5d, 5e Lead wire 1d Operation panel 6 Catalyst 3 Deodorizing duct 7 Controller 3a Suction port 50 Dielectric substrate 3b Exhaust port 51a, 51b
Electrode 4 Scavenging fan 52 Discharge electrode 5 Ozone generator 53 Chip resistor (heating means)

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-188867 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47K 13/30 E03D 9/00 E03D 9 / 05

Claims (2)

(57) [Claims] An ozone generator is provided in an exhaust path from a ball portion of a toilet body, and the ozone generator is provided with heating means for heating and keeping the dielectric substrate warm to evaporate dew condensation water. A toilet seat device provided with a deodorizing ozone generator including a control system for turning off the power supply to the heating means during a period of power supply for discharging to the ozone generator. 2. A seat detection means for detecting that a person is seated on the toilet seat, based on a signal from the seat detection means, to start current supply for discharging to the ozone generator and to apply a signal to the heating means. The toilet seat device provided with a deodorizing ozone generator according to claim 1, further comprising a control system for stopping power supply.