JPH0451615B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a deodorizing device used to remove strange odors in a toilet.

Conventional configuration and problems Generally speaking, this type of deodorizing device is designed to reduce the unpleasant odor of the living environment, especially the odor of toilets, or the odor of excreted waste in flush toilets due to improvements in the airtightness of residences. It was first used to treat discomfort, and is often a combination of activated carbon and fan. Currently, it is common to use fragrances to camouflage odors rather than to completely eliminate odors; however, sanitary cleaning equipment that has become increasingly popular in recent years includes products with built-in full-scale deodorization equipment. has been made into

Such a deodorizing device will be explained based on FIGS. 1 to 3.

Reference numeral 1 designates a toilet bowl, and a main body 2 of a sanitary cleaning device having a built-in deodorizing device and the like is combined with the rear upper part of the toilet bowl.

Reference numeral 3 denotes a water storage section that is provided at the rear of the toilet bowl 1 and stores water for washing away filth in the toilet bowl 1. Water for private washing is also introduced into the main body 2 via a water supply pipe 4.

Reference numeral 5 denotes a cleaning device section incorporating hot water heating means for private part washing, and 6 a deodorizing device section.

Reference numeral 7 denotes a toilet seat on which a user sits, and above the toilet seat is placed a toilet lid 8 for use when the toilet bowl 1 is not in use, both of which are supported at one end by the device main body 2 so as to be openable and closable.

Reference numeral 9 designates a cleaning switch for turning on/off the cleaning water and adjusting the strength of the cleaning water, 10 a water temperature adjustment switch for cleaning, and 11 a power switch.

FIG. 2 shows a cross section taken along line A-B in FIG. 1, and 12 is a nozzle that spouts cleaning water controlled by the cleaning switch 9, and 13 is a nozzle for drying the private part after cleaning. This is a hot air outlet for

14 is an opening/closing shaft for the toilet seat 7 and toilet lid 8;
A gravity switch 15 is provided at the bottom of the toilet seat 7 and is closed by the weight of the person sitting on the toilet seat 7. Further, 16 is a bolt for fixing the main body 2 to the toilet bowl 1;
It is a fixing device made up of nuts, etc. Reference numeral 17 is an inlet for sending odor to the deodorizer 18 and fan motor 19, and reference numeral 20 is an outlet for discharging clean air after deodorization.

FIG. 3 is an electrical wiring diagram of the deodorizing device 6,
A relay coil 20 is connected in series with the deodorizing motor 19.
A relay contact 21 which is closed by excitation is connected.

Further, 13 is a gravity switch, and when a user sits on the toilet seat 7, the motor 19 is operated for a certain period of time by the function of the electronic circuit 22, and deodorization is performed.

Even if the user leaves the toilet seat 7 and the gravity switch 13 is opened, the motor 19 continues to rotate for a certain period of time due to the action of the delay circuit 23, completely eliminating the odor in the toilet. There is.

However, such a deodorizing device 6 has the following problems.

The deodorizing device 6 is wasteful because it runs until you stand up after sitting on the toilet seat, regardless of whether there is an odor or not, even when there is little odor, such as when a woman washes her private parts or when she goes to do errands. The driving noise is also a concern at night.

Furthermore, since the equipment was operated for a certain period of time regardless of the strength of the odor, deodorization could become insufficient when the odor was strong.

Purpose of the Invention The present invention focuses on the above-mentioned conventional problems, and aims to provide a deodorizing device that is very easy to use by automatically starting the deodorizing device as soon as an odor occurs. .

A further object of the present invention is to provide a deodorizing device in which the operating time of the device is automatically adjusted depending on the strength or weakness of the malodor by appropriately selecting the odor detection means.

Structure of the Invention In order to achieve the above object, the present invention comprises a main body and a toilet seat etc. that are placed and fixed on a toilet bowl and have a built-in deodorizing means, and the deodorizing means includes a deodorizing agent provided in a deodorizing air passage and a The odor detection means is made of a material whose resistance value changes depending on the strength of the odor. The output of the means changes according to its resistance value, and when the output of the odor detection means is equal to or higher than the reference output, the operation of the blowing means is automatically continued, and when the output becomes equal to or less than the reference output, the operation of the blowing means is automatically continued. The structure is such that it will disappear.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 4 and 5.

In FIG. 4, 24 is a main body placed above the rear part of the toilet bowl 25, and one end of the toilet bowl 26 and the toilet lid 27 are supported by the main body 24 so as to be openable and closable.

28 is a leg provided at the bottom of the toilet seat 26.

29 is an odor sensor provided near the odor intake port 30, and 31 is an ejection port.

The suction port 30 and the discharge port 31 are fluidly connected through a wind tunnel 32, and a motor 33, a fan 34 driven by the motor 33, and a deodorizer 35 made of activated carbon are arranged inside. .

Generally, the main odors of defecation are hydrogen sulfide, ammonia, skatole, indole, etc.
It also contains many other ingredients.

Next, the control system will be explained based on FIG.

The connection point of the series circuit of the reference resistor 36 and the odor sensor 29 is connected in series with the relay coil 37, and the control pole is connected to the gate of a rectifying element 39 (hereinafter referred to as a thyristor).

Further, the relay contact 38 of the relay coil 37 and the motor 33 that drives the deodorizing fan 34 are connected in series.

The odor sensor 29 circuit, the thyristor 39 circuit, and the motor 33 circuit are each connected in parallel to the power source.

The odor sensor 29 is made of metal oxides, such as tin oxide, which are used for leak detection of toxic gases, etc.
A product containing zinc oxide is used.

The odor sensor 29 using such a metal oxide reacts sensitively to hydrogen sulfide, and is therefore suitable for detecting the foul odor of feces.

By adsorbing hydrogen sulfide, the odor sensor 29 changes the height of the potential barrier that inhibits conductivity, and the conductivity, that is, the resistance, increases or decreases.

In the example, the resistance increases when hydrogen sulfide is adsorbed.

With this configuration, when the odor generated from defecation etc. exceeds a certain level and reaches a level that makes the human sense of smell uncomfortable, the resistance value of the odor sensor 29 becomes greater than the set value of the reference resistor 36, The output triggers the thyristor 39.

For this reason, the relay coil 37 is excited by the current flowing between the anode and cathode of the thyristor 39, thereby closing the relay contact 38 and driving the motor 33.

When the deodorizing effect is achieved, the resistance value of the odor sensor 29 becomes less than the set value of the reference resistor 36, and the voltage applied to the gate of the thyristor 39 decreases, and eventually the anode and cathode of the thyristor 37 are opened. , the operation of the motor 33 is automatically stopped.

Furthermore, if the odor is strong, the operating time of the motor 33 will inevitably become longer.

In this way, automatic operation of the deodorizing device becomes possible without any hassle.

Effect of the invention According to the present invention, the following effects are achieved.

The odor detection means can quickly detect and judge the odor level near the odor source, and automatically energizes or de-energizes the deodorizing device according to the output, so that the standard output of the detection means is unpleasant to the human sense of smell. By setting the level below the sensitivity level that makes you feel this, you can always maintain a comfortable toilet environment.

Due to the odor level judgment function of the odor detection means,
When the odor is strong, the operation will continue automatically until the odor is sufficiently removed, and when it is not necessary, such as when it is time until defecation or when the odor is weak, it will be deactivated, so it will work in conjunction with sitting on the toilet seat to eliminate unnecessary or unnecessary operation. Unlike traditional deodorization methods that operate for a fixed period of time regardless of the
In particular, when the odor generated is extremely low when women wash their private parts or when washing small items, the operating noise of the deodorizing device, which is bothersome when used at night, is significantly reduced.

Since the effectiveness of deodorization increases, it can also contribute to extending the life of the deodorizer itself.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a sanitary cleaning device employing a conventional deodorizing device, FIG. 2 is a sectional view of the same, and FIG. 3 is an electric circuit diagram of the same deodorizing device. FIG. 4 is a sectional view of a deodorizing device according to an embodiment of the present invention, and FIG. 5 is an electric circuit diagram thereof. 29...Odor sensor, 33...Motor, 34
...Juan, 35...Deodorizer.

Claims (1)

[Claims] 1. The main body is placed and fixed on the toilet bowl and includes a toilet seat, etc., which has a built-in deodorizing means, and the deodorizing means detects the odor with the deodorizing agent and air blowing means provided in the deodorizing air passage, and faces the inside of the toilet bowl. The odor detection means is made of a material whose resistance value changes depending on the strength of the odor, and the output of the odor detection means changes according to the resistance value. A deodorizing device for a toilet seat, which automatically continues energizing the air blowing means when the output of the odor detection means is equal to or higher than a reference output, and automatically deenergizes when the output of the odor detection means becomes equal to or lower than the reference output.