KR890004201B1 - Self-closing valve operated electrically - Google Patents

Abstract

The system is for washing-out the sanitary apparatus automatically by detecting the user. The system comprises a sensor (2) for detecting the user, a control circuit (3) operated by the sensor, and a valve (4) providing water for cleaning out sanitary devices (1). The sensor detects the ultrared ray generated from the human body and transfers it to the heat at a pyroelectric element so that the variation of the heat converts to the electric signal.

Description

Toilet Washer

1 is a schematic view of a toilet bowl cleaning apparatus according to an embodiment of the present invention.

t-1) degrees

2 is an external perspective view of a sensing unit.

3 is an exploded perspective view of the same sensing unit.

4 is a schematic cross-sectional view of the same sensing unit.

5 is a cross-sectional view of the water supply.

6 is a diagram illustrating the operation of a pyroelectric element.

7 is a block diagram of a sensing unit.

8 is a block diagram of the entire apparatus.

9th time car art.

* Explanation of symbols for main parts of the drawings

1: toilet 2: detector

3: electric control part 4: water supply part

5: pyroelectric element

The present invention relates to a toilet bowl cleaning device for automatically cleaning the toilet by sensing the user of the toilet.

Conventionally, there are various types of toilet cleaning apparatuses of this kind, but the representative example is Japanese Patent Laid-Open No. 53 (1978) 67244.

The Japanese Patent Laid-Open No. 53244 is composed of a sensing unit for detecting the use of a toilet, a driving unit acting on the sensing signal, and a water supply unit for supplying water to the toilet in connection with the operation of the driving unit. It uses a change-light-type photoelectric sensor that detects the use of a toilet in accordance with a change in the amount of light reflected by the light beam projected on the detector.

Therefore, the above-mentioned conventional sensor not only detects a short detection distance, but also varies the detection distance according to the color of the worn clothing to generate a dead zone, and is weak to scattering of light close to infrared rays. The detection is uncertain, such as a faulty operation is likely to occur due to (ON) or (OFF).

The technical problem to be solved by the present invention is to detect the far infrared rays emitted by the human body directly, not to detect the use of the toilet indirectly as the projected light rays are reflected by touching the human body, and receiving the reflected light. By detecting the use of the toilet. In order to achieve the above technical problem, the technical means devised by the present invention includes a sensing unit for detecting the use of a toilet, an electrical control unit operating in accordance with a sensing signal from the sensing unit, and operating according to the output of the electrical control unit. And a water supply unit for supplying the washing water to the toilet, and converts the infrared rays generated by the human body from the pyroelectric element into heat, and is configured as a pyroelectric infrared sensor generating a detection signal according to the temperature change of the pyroelectric element due to this heat. It is. By the way, the detection unit can directly detect the use of the toilet by detecting the infrared radiation emitted by the human body.

Since this invention is the said structure, it has the advantage described in this paragraph.

① As the sensing unit is configured as a pyroelectric infrared sensor, it is possible to install a cover such as polypropylene in the sensing unit. Therefore, the sensing unit is not visible to people and is not disturbed. Excellent durability because it can be protected from ammonia and moisture.

② The sensing distance is long, and it is possible to use it as the urinal of the multiple connection method in one sensing unit, so that the price is reduced.

It will be described below according to one embodiment of the present invention.

In the figure, reference numeral 2 denotes a detector, reference numeral 3 denotes an electric controller, reference numeral 4 denotes a water supply, reference numeral 1 denotes a toilet, and the detector 2 is installed at a suitable location of the toilet ceiling 6. , The toilets (1) are connected in parallel with a plurality of toilets at predetermined intervals.

The sensing unit 2 converts far infrared rays in the wavelength range of 4.5-20 μm generated by the human body from the pyroelectric element 5 to heat, and generates a detection signal according to the temperature change of the surface of the pyroelectric element due to the heat. It is comprised as a sensor, and when it shows the circuit structure as a block diagram, it is the same as FIG.

The detector 2 is configured to focus the infrared radiation emitted from the human body as a concave mirror 7 to concentrate energy on the light receiving surface of the pyroelectric element 5 to increase energy density. The concave mirror 7 is provided on the lower surface of the substrate 8 attached to the ceiling, and the sensor unit 5 'containing the pyroelectric element 5 is disposed in front of the concave mirror 7. As the pyroelectric element 5, for example, titanic acid, zirconic acid, or lead-based ceramic material (PZT) is used. The concave mirror 7 receives the infrared rays emitted by the user with respect to all the toilets 1 installed in plural numbers so that the curvature of the concave mirror is condensed on the light receiving surface of the pyroelectric element 5, as shown in the schematic diagram of FIG. It is formed by the succession of a plurality of arcs.

In this way, as shown in FIG. 1, a plurality of non-shaped detection zones are generated, and the use of a plurality of toilets 1 as one sensing unit 2 can be detected, thereby reducing the cost of installation. In addition, the sensor unit 5 'and the concave mirror 7 in which the pyroelectric element 5 is housed are rotatably provided in two directions as shown in FIG. 3 so that the detection area can be adjusted.

In addition, the detection unit 2 has a cover-shaped detection window 9 made of polypropylene or the like on the front surface thereof, and the concave mirror 7 and the pyroelectric element 5 have the above-described detection window 9. It is covered in so that it cannot be seen from the outside.

T)를 주었을때 표면에

TS의 전하가 발생하는 현상이다. 소위 초전효과를 이용하여서 초전소자(5)표면의 열의 온도변화(

T)에 의하여 소자(5)의 자발생분극(自發生分極) (

Pt)의 크기가 변화하여서 전하를 발생한다 (제 6 도 참조).However, when the toilet user receives the infrared rays projected from the human body in front of the toilet 1 by the pyroelectric element 5, the infrared rays are converted into heat on the surface of the pyroelectric element 5, and the temperature of the element material is changed.

When you give T) on the surface

This is a phenomenon in which charge of TS occurs. The temperature change of heat on the surface of the pyroelectric element 5 using the so-called pyroelectric effect (

Self-generated polarization of the device 5 by T) (

The magnitude of Pt) changes to generate charge (see FIG. 6).

This charge is processed as an electric circuit shown in FIG. 7 to generate a detection signal. That is, a detection signal is generated, and this detection signal is sent to the electric controller 3.

As shown in the block diagram of FIG. 8, the electric controller 3 includes a gate circuit 11 for removing noise and taking out only a predetermined detection signal from the detector 2 through the OR circuit 10; If the signal is stored to operate the T ₁ timer circuit 13 to operate the T ₁ timer circuit 13 and the T ₁ time is operated as a signal of the first memory circuit 12 to time-up, T ₀ described later _. A first memory reset that receives a signal from the T ₁ timer circuit 13 and the T ₀ timer circuit 29 that signals the timer circuit 29, and outputs a signal to remove the memory to the first memory circuit 12. Ignoring control unit a and second memory circuit 17, which are configured as an outside temperature correction circuit 15 which outputs a signal for changing the working time of the circuit 14 and the T ₁ timer circuit 13 according to the room temperature. Cleaning switch 16 that emits an operation signal for operating the switch and the signal is stored when the cleaning switch 16 receives the signal. As well as T _2, the timer circuit 18 and the T ₀ and the timer circuit of the second memory circuit 17 that the signal to (29), when the second receive signals from the memory circuit 17 operate T ₂ hours taimeop second A T ₂ timer circuit 18 for generating a signal for operating the memory set circuit 19 and a second memory reset circuit for receiving the signal from the T ₂ timer circuit 18 and removing the memory of the second memory circuit 17 ( A cleaning switch section (b), a third memory circuit 20, a T ₃ timer circuit 21, a multiplier circuit 22, a third memory reset circuit 23, and a counter reset circuit ( 24), a counter control unit c formed as a counter setting external switch 25, and a T ₄ timer circuit 26 that can be set, for example, for 3 to 24 hours, and as a T ₄ timer reset circuit 27, for a long time. When the toilet bowl 1 is not cleaned, start the T ₀ timer circuit 29 to prevent evaporation or encapsulation of encapsulated water in the toilet bowl 1 to prevent sticking. Thus, the equipment protection control unit (d) for operating the output circuit 30 is integrally provided, and the T ₁ timer circuit 13, the second memory circuit 17, the drain circuit 22, or the T ₄ timer circuit 26 is integrated. ) receives a signal from the through Iowa circuit (28), T and T ₀ timer circuit 29 that the output signal during the ₀ hour, hayeoseo amplifying an output signal from the T ₀ timer circuit 29 water supply unit (4 Is connected to the output circuit 30 for energizing the control circuit (a). The disregard control unit (a) detects the user when the sensing unit (2) does not reach the set number of the counter control unit (c). _It is supposed to get the output as _one hour.

The outside air temperature correction circuit 15 constitutes a CR timer as, for example, a thermistor and a condenser, and shortens T ₁ hour when the outside temperature is high, and lengthens T ₁ hour when the outside temperature is low. . In addition, T ₁ time can be set by adjusting a suitable time, and it resets here to 30 second-15 minutes.

Further, in the above-described outside temperature compensation circuit 15 in this embodiment, for example, when the T ₁ time of the 0 ℃ T at ₁ ° time, T ₁ ¹⁵ hours, 30 ℃ at 15 ℃ to T ₁ ³⁰ time T ₁ °. 2T ₁ ³⁰ and T = 0.8T ₁ ¹⁵ are set.

In addition, the relationship between temperature and T ₁ hour is arbitrary. If the temperature is low, T ₁ hour is long, and if the temperature is high, T ₁ hour is short.

On the other hand, the water supply part 4 is a well-known electromagnetic flash valve which integrated the flash valve 31 and the driving electromagnet 32 integrally, and interposes the inlet side of the flash valve 31 via the water supply pipe 33. The outlet is connected to the toilet 1 through a drain pipe 34. When the water supply unit 4 receives the output of the electric control unit 3, the plunger 36 is sucked toward the fixed iron core 37 by the electromagnetic force of the coil 35 of the electromagnet 32 and is integrally installed on the plunger 36. The pressure bar 38 is advanced to press the starting section 39 of the flash valve 31, and the flash valve 31 is operated to flow the washing water into the toilet 1.

After the T ₀ time, when the output of the electric control unit 3 is not available and the pressure is released from the pressure bar 38, the flash valve 31 is retracted by the spring force of the spring 40 of the starting section 39. It is configured to stop the water supply by flowing the ash washing water. The operation of the toilet bowl cleaning device will be described below.

When the sensing unit 2 detects the use of the toilet 1, the sensing signal is passed through the OR circuit 10 and the gate circuit 11 to the first memory circuit 12 and the counter control unit (a) of the ignore control unit (a). The third memory circuit 20 of c) enters, and the first memory circuit 12 operates the T ₁ timer circuit 13. On the other hand, the third memory circuit 20 enters the memory state upon receiving the detection signal and causes the T ₃ timer circuit 21 to be set as, for example, 15 seconds to 60 seconds.

The detection signal is not received when the third memory circuit 20 is in the memory state. When the T ₃ timer circuit 21 elapses after the star art overlap detection prevention time T ₃ , the T ₃ timer circuit 21 times up to generate a pulse signal and operates the third memory reset circuit 23. The memory state of the third memory circuit 20 is released, and the third memory circuit 20 receives a new sensing signal.

The collecting circuit 22 counts the pulse signal and starts the T ₀ timer circuit 29 when the pulse signal reaches the predetermined number (which is set to 3 in this embodiment) set as the count setting external switch 25. _The output is generated in the time T ₀ output circuit 30 at which the _zero timer circuit 29 is operating to operate the water supply unit 4. In addition, the counter reset circuit 24 operates by the operation of the T ₀ timer circuit 29 to return the coefficients of the base circuit 22 to zero, and the first memory reset circuit 14 operates to operate the first memory. The elapsed time of the T ₁ timer circuit 13 is reset by removing the memory of the circuit 12.

In addition, the disregarding control unit a operates the T ₀ timer circuit 29 to generate an output from the output circuit 30 when the count of the counter control unit c does not reach a predetermined number 3 during T ₁ time.

In addition, when water flows regardless of the user's detection, such as when the toilet 1 is cleaned, the second memory circuit 17 is operated by inserting the switch 16 of the cleaning switch part b. Second memory circuit 17 has one switch 16 when the input hayeoseo remember it and Sikkim star to T _2, the timer circuit 18, art well because work is also T ₀ the timer circuit (29) T ₀ time output circuit 30 Is operated to drive the water supply unit 4.

On the other hand, when the T ₂ timer circuit 18 times up, the second memory reset circuit 19 operates to remove the memory of the second memory circuit 17, and waits for the next cleaning switch 16 to be inserted. . Therefore, when the first operation signal is generated, the second memory circuit 17 stores the memory and performs the cleaning. The second memory circuit 17 does not receive the cleaning even if the number of switches 16 is newly input while the memory is stored. Do not.

This T ₂ time is called a prohibition time, for example, and the T ₂ time is set to 10 seconds to 30 seconds, for example. When the T ₂ timer circuit 18 times up and the second memory reset circuit 19 operates to remove the memory of the second memory circuit 17, and then the switch 16 is turned on, washing is performed again at that point.

On the other hand, the facility protection control circuit (d) is a T ₄ timer when the T ₀ timer circuit 29 is started by the use of the toilet bowl 1 or by the input of the cleaning switch 16 and the output circuit 30 is operated. The reset circuit 27 is operated to reset the elapsed time of the T ₄ timer circuit 26.

When the T ₀ timer circuit 29 times up, the operation of the T ₄ timer reset circuit 27 stops, and the T ₄ timer circuit 26 starts up. Therefore, T ₄ hours may be called, for example, facility protection time. If the T ₀ timer circuit 29 is started by the use of the toilet 1 before the T ₄ timer circuit 26 times up or by the input of the cleaning switch 16, the T ₄ timer reset circuit 27 When the elapsed time of the T ₄ timer circuit 26 is reset, when the T ₀ timer circuit 29 does not start for a long time such as at night, the T ₄ timer circuit 26 times up and the T ₀ timer circuit 29 Start the water supply to the toilet (1). The T ₀ the timer circuit 29 at the same time and start-up T ₄ the timer reset circuit 27 operates to be the elapsed time T ₄ the timer circuit 26 is reset when the operation of the T ₄ Reimer circuit 29 stops again T ₄ The timer circuit 26 starts up.

The time difference art of the toilet bowl cleaning apparatus of this embodiment is shown in FIG. In addition, the present invention is not limited to the time difference art described above, and various modifications are possible.

Claims (1)

A sensing unit 2 for sensing the use of the toilet bowl 1, an electric control unit 3 operating in accordance with a detection signal from the sensing unit, and an electric control unit operating according to the output of the electric control unit to supply washing water to the toilet bowl. The water supply unit 4 is configured to convert the infrared rays generated by the human body from the pyroelectric element 5 into heat, and configured as a pyroelectric infrared sensor that generates a detection signal according to the temperature change of the pyroelectric element due to the heat. Toilet bowl cleaning device characterized in that.

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