JPH0433334B2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention provides water supply to water washers such as toilet bowls and hand wash basins.
The present invention relates to a water absorption control device that automatically controls water absorption based on the detection of use of a water washer by a sensing unit, and particularly relates to a water absorption control device whose driving power source is a battery.

<Conventional technology> Conventionally, as this type of water supply control device,
-126831 publication is known.

To explain the method disclosed in Japanese Patent Application Laid-open No. 59-126831, when electricity is supplied from the battery to the control section, infrared rays are emitted from the sensing section, and this infrared rays are reflected when they hit the user of the toilet, and the reflected light is When the sensing section receives the light and outputs a sensing signal to the control section, the water supply section is opened.

<Problems to be Solved by the Invention> However, such conventional water supply control devices have had problems such as runaway operation of the control unit when the battery is exhausted and the amount of electric power is insufficient.

In view of such conventional circumstances, the present invention aims to stop the operation before the battery runs out of power.

<Means for Solving the Problems> The technical means taken by the present invention to solve the above problems include a water washer, a sensing section that detects the use of the water washer, and a sensor that outputs a signal to the sensing section to detect the use of the water washer. a sensor circuit that outputs a sensing signal based on a signal input from the section; a control circuit that operates based on this sensing signal and outputs a drive signal to the drive circuit; and a control circuit that operates based on the drive signal and outputs an opening/closing signal to the water supply section. In a water supply control device that uses a battery as a driving power source, the water supply control device includes a control unit including a drive circuit, and a water supply unit that opens and closes a valve in response to an opening/closing signal from the drive circuit to supply wash water to the water washer, and uses a battery as a drive power source. The amount of battery consumption is detected by counting the signals output from the
The device is characterized by being provided with a stop circuit that stops the operation when the amount of consumption reaches a set amount.

Preferably, the stop circuit detects the amount of battery consumption by counting signals output from the sensor circuit of the control section to the sensing section.

Alternatively, the amount of battery consumption may be detected by the stop circuit counting drive signals output from the control circuit of the control unit to the drive circuit.

Furthermore, the amount of battery consumption may be detected by counting the signal output by the stop circuit from the sensor circuit of the control section to the sensing section and the drive signal output from the control circuit of the control section to the drive circuit.

<Function> According to the technical means of the present invention, when the amount of battery consumption reaches a set amount according to the count of the signal output from the control unit, the operation of the battery is stopped by the stop circuit. This prevents power shortages.

<Example> Hereinafter, an example of the present invention will be described based on the drawings.

In this embodiment, as shown in FIG. 1, the water washer 1 is a urinal 1a, and above the urinal 1a,
To be more precise, the sensing part 2 is embedded in the wall surface W at a height corresponding to the height of the user's chest when the user is standing in front of the urinal 1a, and the stop circuit 8 is connected to the counter 8a. The counter 8a detects the amount of consumption of the battery 7 by counting the light projection signal output from the sensor circuit 3.

The sensing part 2 is a light emitting element 2 made of a light emitting diode.
It is a diffuse reflection type infrared sensor comprising a light receiving element 2b consisting of a phototransistor and a light emitting element 2a, and the light emitting element 2a is connected to a sensor circuit 3 of a control section which will be described later.
The system emits infrared light based on the light projection signal output from the urinal, and this infrared light hits the user standing in front of the urinal 1a to relieve himself and is diffusely reflected, and a part of this reflected light is received. When the element 2b receives light, it outputs a light reception signal to the sensor circuit 3.

The control section operates based on the sensor circuit 3 which outputs a light projection signal to the light projection element 2a of the sensing section 2 and outputs a sensing signal based on the light reception signal input from the light receiving element 2b, and the sensing signal from the sensor circuit 3. a control circuit 4 that outputs a drive signal to the drive circuit 5;
It consists of a drive circuit 5 that operates based on a drive signal from the control circuit 4 and outputs an opening/closing signal to a water supply section 6, which will be described later.

The sensor circuit 3 communicates with a light emitting drive (not shown) that communicates with the light emitting element 2a and outputs a light emitting signal to the element 2a via a counter 8a of a stop circuit 8, which will be described later, and a light receiving element 2b. The light receiving amplifier (not shown) is provided with a light receiving amplifier (not shown) which inputs the light receiving signal, and the light projecting drive continuously transmits the light projecting signal at a predetermined period.

When the light-receiving amplifier emits infrared light from the light-emitting element 2a, if it inputs a light-receiving signal even once and detects the presence of a user, it outputs a sensing signal to the control circuit 4; When no signal is input, a clear signal is output to the control circuit 4.

Further, the sensor circuit 3 is connected to the battery 7 of the drive power source via a switch 8b which is turned on and off based on the output from a counter 8a of a stop circuit 8, which will be described later. When energized and activated, it is possible to output a light projection signal and input a light reception signal.

The control circuit 4 counts only the sensing signals from the sensor circuit 3, and when this count exceeds a set number, it outputs a drive signal to the drive circuit 5 for a predetermined period of time, and also outputs a clear signal from the sensor circuit 3 during this count. When input, the above count number is reset to 0.

Further, the control circuit 4 communicates with the battery 7 and is always energized.

The drive circuit 5 receives the drive signal output from the control circuit 4 and outputs a valve opening signal or a valve closing signal to the water supply section 6 to electrically control the operation of the water supply section 6. In the case of this embodiment, at the same time as inputting the drive signal, a valve opening signal is outputted to energize the operating coil of the latching solenoid 6a that constitutes the water supply section 6 for a predetermined period of time, for example, 20 m seconds.
As soon as the drive signal is no longer input, a valve closing signal is output to energize the return coil of the latching solenoid 6a for a predetermined period of time, for example, 20 m seconds.

Similarly to the sensor circuit 3, the drive circuit 5 communicates with the battery 7 via the stop circuit 8 switch 8b, and is activated when the switch 8b is turned on.
When in the OFF state, the operation is stopped.

The water supply section 6 consists of a latching solenoid 6a and a flush valve 6b that opens and closes when the latching solenoid 6a operates, and in this embodiment, a water supply flow path that connects the water supply source and the urinal 1a. A latching solenoid is provided in a branch flow path (not shown) that communicates a pressure chamber defined within the flash valve 6b with the secondary side of the flash valve. 6a is deployed.

The latching solenoid 6a opens and closes the valve by moving the plunger up and down by energizing the operation coil and the return coil, and maintains the valve state even if the energization to these coils is stopped after the valve has been activated. It has a conventionally well-known structure, and in this embodiment, when the valve part opens, the flash valve 6
When the water in the pressure chamber b is discharged to the secondary side of the flash valve 6 via the branch flow path and the valve portion is closed, the outflow of water from the pressure chamber of the flash valve 6b is stopped. .

The flush valve 6b has a conventionally well-known structure, and defines a pressure chamber behind a main valve body movably disposed inside the flush valve 6b. When the water in the pressure chamber decreases, the main valve body moves toward the pressure chamber side. Gradually move and open the valve,
Washing water from the water supply source is supplied to the urinal 1a through the water supply channel 9, and when the outflow of water in the pressure chamber is stopped, water is gradually introduced into the pressure chamber from a small passage opened in the main valve body. water begins to flow in, and the main valve body moves little by little in the direction of closing the valve, eventually closing the valve and stopping the water supply to the urinal 1a.

On the other hand, a counter 8a of the stop circuit 8 is arranged in an electrical path between the sensing section 2 and the sensor circuit 3, and counts the light emitting signal output from the sensor circuit 3, and when this count reaches a set number, ,
Outputs an OFF signal to switch 8b.

The switch 8b is installed in the electrical path connecting the battery 7, the sensor circuit 3, and the drive circuit 5, and is normally kept in the ON state to energize them, but when the OFF signal from the counter 8a is input. is in the OFF state, and power supply to the sensor circuit 3 and drive circuit 5 is stopped.

When the counter 8a inputs a reset signal outputted by manual operation of a reset button 8c provided on the wall surface W in the drawing, the counter 8a returns the count to 0, and when the count reaches the set value, an OFF signal is sent to the switch 8b. If the above reset signal is input while outputting
Stop outputting the OFF signal.

In such a water supply control device, the water supply unit 6 is normally activated when the sensing unit 2 detects the user.
Each time a light projection signal is output from the sensor circuit 3 to the light projection element 2a of the sensing section 2, the count number of the counter 8a increases by one, and when this count number reaches a set number, the amount of consumption of the battery 7 is detected. Then, an OFF signal is output to the switch 8b to stop the power supply from the battery 7 to the sensor circuit 3 and the drive circuit 5, thereby stopping their operation.

However, if the reset button 8c is manually operated at this time, a reset signal is output to the counter 8a, the count becomes 0, the switch 8b is turned on, and the operation is stopped for a short period of time until the battery 7 is replaced. It becomes possible.

Next, other embodiments of the present invention are shown in FIGS. 2 to 4.

In the device shown in FIG. 2, a counter 8a is provided in the electrical path connecting the control circuit 4 and the drive circuit 5, and the amount of consumption of the battery 7 is detected by counting the drive signal output from the control circuit 4. It is something to do.

What is shown in Fig. 3 is a sensor circuit 3 and a sensing section 2.
Counters 8a, 8a are provided in the electrical path connecting the control circuit 4 and the drive circuit 5.
is provided to count the light projection signal outputted from the sensor circuit 3 and the drive signal outputted from the control circuit 4, and the amount of consumption of the battery 7 is detected by adding up these two counts.

Furthermore, in the case shown in Figure 4, the water washer 1 is the hand washer 1.
When the sensor 2 installed on the wall W detects a user approaching the handwash basin 1b to wash their hands, the water supply unit 6 is energized and water is supplied from the water spouting device 1b ₁ . When the user leaves the hand wash basin 1b after washing their hands, the water supply is stopped.

In each of the embodiments described above, the sensing section 2 is connected to the wall surface W.
Although the sensing section 2 is installed in an embedded manner, the mounting structure of the sensing section 2 is not limited to that shown in the drawings and may be any structure.

<Effects of the Invention> Since the present invention has the above configuration, it has the following advantages.

When the amount of battery consumption reaches the set amount according to the count of the signal output from the control unit, the stop circuit stops the operation to prevent the battery from running out of power. You can stop the operation before it runs out.

Therefore, compared to conventional systems in which the control unit operates out of control when the battery is exhausted and there is insufficient power, the control unit does not operate out of control even if the battery runs out of power, and the operation is reliable. .

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of a water supply control device showing one embodiment of the present invention, Figs. 2 to 4 show other embodiments of the present invention, and Fig. 2 is an explanatory diagram showing a case where drive signals are counted. FIG. 3 is an explanatory diagram showing the case where the light projection signal and the drive signal are counted, and FIG. 4 is a partially cutaway front view showing the case where the faucet is a washbasin. 1... Water washer, 2... Sensing section, 2a... Light emitting element, 2b... Light receiving element, 3... Sensor circuit, 4
... Control circuit, 5 ... Drive circuit, 6 ... Water supply section,
7...Battery, 8...Stop circuit.

Claims (1)

[Claims] 1. A water washer, a sensing section that detects the use of the water washer, a sensor circuit that outputs a signal to the sensing section and outputs a sensing signal based on the signal input from the sensing section, and this sensing signal. a control section consisting of a control circuit that operates based on the drive circuit and outputs a drive signal to the drive circuit, and a drive circuit that operates based on the drive signal and outputs an opening/closing signal to the water supply section; A water supply control device comprising a water supply unit that opens and closes to supply washing water to the water washer and uses a battery as a driving power source, detecting the amount of battery consumption by counting signals output from the control unit, A water supply control device comprising a stop circuit that stops its operation when the amount of consumption reaches a set amount. 2. The water supply control device according to claim 1, wherein the stop circuit detects the amount of battery consumption by counting signals output from the sensor circuit of the control section to the sensing section. 3. The water supply control device according to claim 1, wherein the stop circuit detects the amount of battery consumption by counting drive signals output from the control circuit of the control section to the drive circuit. 4. Claim 1, wherein the stop circuit detects the amount of battery consumption by counting the signal output from the sensor circuit of the control unit to the sensing unit and the drive signal output from the control circuit of the control unit to the drive circuit. Water supply control device.