JPH01266448A - Automatic water heater - Google Patents

Abstract

PURPOSE:To shorten the prioritized time as much as possible in which the supply of mixed water to other lines is interrupted so that any inconvenience to the user of those lines may be lessened as much as possible by changing the timing of the start or termination of the prioritized usage when a certain line ts to be used, depending on whether the other lines are being used or whether there is a command for hot water supply. CONSTITUTION:In a case where mixed water is not being supplied anywhere except for a private part cleaning device 21, the temperature adjustment of cleaning water is completed before the cleaning switch is turned on, and the mixed water at a desired temperature is ejected to the private part quickly upon turning on the cleaning switch because the prioritized time for the private part cleaning movement is started upon the ON signal is outputted from a seating sensing means. Meanwhile, in a case where mixed water is being supplied to locations (such as bathtub 25) other than the private part cleaning device 21, the prioritized time for private part cleaning movement is not started, depending on the ON signal output from the seating sensing means, until the private part cleaning switch is turned on after relieving oneself so as to shorten the interruption of filling of the bathtub as much as possible.

Description

Detailed Description of the Invention (a) Industrial Application Field The present invention is capable of supplying mixed hot water from a single temperature-regulating pulp not only to bathtub/shower system channels but also to private area cleaning device system channels. Regarding automatic hot water supply equipment.

(D) Conventional technology Conventionally, as a form of automatic water heater, Japanese Patent Laid-Open No. 62-28
As described in Publication No. 0524, a switching pulp is provided on the downstream side of the temperature control pulp that is connected to the water supply source and the hot water supply source, and the mixed hot water from the temperature control valve is selectively transferred to the bathtub flow path or the caran. Some devices have a configuration in which hot water can be selectively tapped into the flow path or shower flow path.

The above-mentioned temperature control valves and switching pulps are driven by operating a controller installed in the kitchen or bathroom and sending a drive signal to the control device. It is possible to automatically dispense a predetermined amount of mixed hot water.

(c) Problems to be solved by the invention However, such conventional automatic hot water supply devices are designed exclusively for automatic hot water supply only in a bathtub/shower system flow path consisting of a bathtub flow path, a flush flow path, a shower flow path, etc. In order to automatically supply hot water to the flow path of the private parts cleaning device system, which also requires mixed hot water and washbasins, an automatic hot water supply device consisting of a dedicated temperature control valve and switching pulp must be installed separately. had to be set up. Therefore, the cost of sanitary equipment in large-scale facilities such as hotels has become expensive.

In addition, when using the private part cleaning device system flow path,
The operation of supplying mixed hot water to the shower system channel must be manually stopped by turning off a required switch means, making the operation complicated.

An object of the present invention is to provide an automatic water heater that can solve the above problems.

(d) Means for Solving the Problems The present invention connects the downstream side of a hot water supply passage whose upstream side communicates with a hot water supply source to a plurality of passages via a switching valve, and controls the flow from a control device. The hot water supply source and switching pulp are controlled by the signal, and hot water at an appropriate temperature can be selectively supplied and stopped from the hot water supply flow path to each system flow path, and a specific flow path is connected to other flow paths. When using a specific wave channel, the timing of the start or end of priority use is changed depending on whether other channels are used or whether a hot water supply instruction is input. The invention relates to an automatic hot water supply device.

Specifically, when other flow paths are used, priority use is given to the private parts cleaning device flow path that constitutes a specific wave path, starting with the ON output of the cleaning switch that is output after the ON output of the seating detection means. However, when the other channels are not used, the on-output of the seating detection means can start the priority operation for the private part cleaning device channel.

(e) Action and effect With the above configuration, the present invention has the following effects.

■If you are using another flow path, you can start priority operation for the private area cleaning device flow path by turning on the cleaning switch that is output after the seating detection means turns on. The time during which the supply of mixed hot water, etc. is prioritized can be shortened as much as possible, and the inconvenience to users of other channels can be reduced as much as possible. For example, even if the user preferentially uses the private area washing device while taking a shower, the shower can be resumed in a short time, allowing the user to enjoy a comfortable shower. Further, in the hot water filling operation, by shortening the hot water filling interruption time, the hot water filling operation can be completed quickly.

(2) If no other flow path is used, priority operation for the private part cleaning device t flow path can be started by turning on the seating detection means. Therefore, when using the private parts cleaning device, the cleaning water can be sprayed at the same time as the cleaning switch is turned on, making it possible to use the private parts cleaning device comfortably.

(f) Examples The present invention will be specifically described below based on examples shown in the attached drawings.

FIG. 1 shows the conceptual overall configuration of an automatic water heater A according to the present invention. In the figure, 10.0 is a hot water side flow path and a water side flow path, both flow paths IQ, , pressure regulating valves 10a and 11a, a pressure balancing valve E and a flow rate regulating valve 12, which balance the pressure of hot water and facilitate the adjustment of the mixed water temperature.
13 are provided. A valve drive device 14 such as a motor is interposed between the two flow paths 10 and 11, and the valve drive device 14 drives, opens and closes the ffl amount control valve 1213, and the downstream side Mixed hot water can be flowed through the mixed hot water flow path (hot water supply flow path) 15 located therein, and the temperature can be adjusted by changing the mixing ratio of water and water by changing the valve opening/closing degree.

In the above configuration, the flow rate regulating valves 12 and 13 and the valve driving device 14 form a temperature regulating valve B, which is an example of a hot water supply source.

Also, on the downstream side of the mixed hot water flow path 15, from the side close to the temperature control valve B toward the far side, a private part cleaning device flow path 16, a wash basin flow path 17, and a bathtub flow path 18, respectively.
and a shower flow path 19 (the flow path 19 is branched into the flow path 19a and the shower flow path 19b via a flow rate adjustment/water cutoff/switching valve 20) is connected.

Then, the private part cleaning device channel 16, the wash basin channel 17, the bathtub channel 18, the flush channel 19a, and the shower channel 19.
b can supply mixed hot water to the private part cleaning device 21, washbasin 22, bathtub 23, and shower head 24, respectively.

Further, in the above flow path configuration, flow rate regulating valves 25, 26, and 27 are attached to the private part cleaning device flow path 16, the wash basin flow path 17, and the bathtub flow path 18, respectively.

The flow rate adjustment/water stop/switching valve 20 and the flow rate adjustment valves 25, 26, and 27 are operated by a valve driving device 20 such as a motor.
a, 25a, 26a, 27a, the mixed hot water private part washing device 21. Washbasin22. It is possible to select a flow path to the bathtub 23 and the shower 24, adjust the flow rate in each flow path, and further shut off water by cutting off communication to all flow paths.

In addition, flow! Adjustment/water stop/switch valve 20, flow rate adjustment valves 25, 26, 27, and valve drive devices 20a, 25a, 26
A and 27a form a switching valve C capable of adjusting flow rate, shutting off water, and switching.

Furthermore, in FIG. 1, 28 is a mixed hot water temperature sensor provided on the upstream side of the mixed hot water flow path 15, which detects the mixed hot water detection temperature value ↑- of the mixed hot water flowing in the mixed hot water hot water flow path 15, Based on the temperature deviation value between the mixed hot water detection temperature value Tm and the mixed hot water set temperature value Ts, the control device described later performs PID control, generates an appropriate drive output, drives the temperature control valve B, and then controls the temperature control valve B. This allows the temperature of the mixed hot water to be adjusted.

Further, 29 is a mixed hot water flow rate sensor provided in the private part cleaning device flow path 16, which detects the mixed hot water detected flow rate value Qa+ of the mixed hot water flowing in the private part cleansing device flow path 16, and detects the mixed hot water detected flow rate value low. In addition to the temperature adjustment control based on the temperature deviation value described above, the control device generates a drive output to drive the flow rate adjustment valve 25 based on the flow rate deviation value from the mixed hot water set water amount value Qs. Accordingly, the flow rate can be adjusted.

Further, 30 is a mixed hot water flow rate sensor provided in the bathtub flow path 18, which detects a mixed hot water detection flow rate value 0■ of the mixed hot water flowing in the bathtub flow path 18, and uses the mixed hot water detection flow rate value Os and the mixed hot water setting. In addition to the temperature adjustment control based on the temperature deviation value described above, the control device generates an appropriate drive output based on the flow rate deviation value from the hot water amount value Qs, and controls the flow rate 1tsIl valve 2.
7, and by the same driving, the flow 1i can be adjusted.

Further, 31 is a mixed hot water flow rate sensor provided in the shower flow path 19, which detects the mixed hot water detected temperature value Qm of the mixed hot water flowing in the same flow path 19, and combines the mixed hot water detected flow rate value Qm with the mixed hot water detected flow rate value Qm. In addition to the temperature adjustment control based on the temperature deviation value described above, the control device generates an appropriate drive output to drive the switching valve 20 based on the flow rate deviation value from the set hot water amount value Qs, and by the same drive , flow rate adjustment, etc.

Further, as shown in FIG. 1, the control device 0 includes a microprocessor MPII, input/output interfaces 7, 35 .
36, and a memory 38 consisting of ROM and RArI, and the memory 38 stores output signals from the various sensors 2B, 29, 30, 31 described above, and various controllers 40, 41 . A valve drive sequence program for driving the temperature control valve B and the switching valve C based on the drive signal from 42 is stored, and the hot water tapping conditions at the time of switching the flow paths can also be stored.

That is, in FIG. 1, numeral 40 is a controller for the private parts cleaning device that is installed near the flush toilet equipped with the private parts cleaning device 21 and supports the conditions for jetting cleansing water from the jet nozzle to the private parts such as the buttocks. 42 is a washbasin controller that is installed near the washbasin 22 and supports the conditions for dispensing hot water from a discharge fitting or the like to the washbasin 22; 42 is a bathtub controller that is installed in a bathroom, kitchen, etc., and instructs the conditions for dispensing hot water to the bathtub 23; 43 is installed in the washing area of the bathroom, and the shower 24
and a controller for the shower flusher that instructs hot water supply conditions to the flusher 24a.

And these controllers 40, 41, 42.43
By operating the controller, a predetermined drive signal or control signal can be sent to the control device, and the temperature control valve B and the switching valve C can be driven in response to the drive signal.

Next, automatic hot water supply operation by the automatic hot water supply apparatus A having the above configuration will be explained with reference to FIGS. 1 to 3.

Incidentally, FIG. 2 shows a main routine which is the sequence of operations when filling the bathtub 23 with hot water, and FIG. 3 shows a subroutine when giving priority to the private part washing operation.

In Figure 2, after pressing the power switch (100),
The amount of hot water to be filled into the bathtub 23 is set by pressing the hot water amount setting switch of the bathtub controller 42 (101).

Next, the temperature of the mixed hot water discharged into the bathtub 23 is determined as follows.
Press the hot water temperature setting switch on the bathtub controller 42 to set it (103).

After confirming the above operation, press the automatic hot water supply switch to drive the temperature control pulp B to create mixed hot water at the appropriate temperature.
Open the flow rate adjustment valve 27 and supply mixed hot water into the bathtub 23 through the bathtub channel 18 to fill the bathtub with hot water (LQ6)
.

The amount of hot water dispensed is counted and integrated by the integration counter (107), and the temperature control pulp B is controlled to an appropriate temperature by the PID I control (10B).

In this appropriate temperature control (108), the automatic hot water supply display lamp, the set hot water amount display lamp, and the set hot water temperature display lamp provided on the bathtub controller 43 are turned on (109).

When the cumulative amount of hot water counted by the counter reaches the set amount of hot water, it is assumed that hot water filling is completed (I
IOY), flow! The regulating valve 27 is stopped, and the bathing lamp and bathing OK buzzer sound to inform the user that it is possible to take a bath (110).

On the other hand, if the cumulative amount of hot water counted by the counter does not reach the set amount of hot water (110!1), steps (107) to (110) are repeated until it reaches the set amount of hot water.

In addition, FIG. 3 shows a private part cleaning device 21 which is the main point of the present invention.
This figure shows the operation procedure for supplying mixed hot water to the tank, and the supply operation procedure will be explained below based on this figure.

First, in FIG. 3, regardless of whether the bathtub is being filled with hot water or not, when a person sits on the private cleaning bag W21, the seating detection means consisting of an infrared sensor, a pyroelectric sensor, a microswitch, a load cell, etc. is turned on ( 120).

Based on this ON signal, the control device determines whether hot water filling operation is to be performed or not based on the output signal of the flow rate sensor 30 provided in each wave path, especially the bathtub flow path 18.
), if no other supply operation including hot water filling operation is being performed, the priority code is output to interrupt the reception of subsequent hot water supply instructions to other hot water supply lights or input them into the memory, and the mixed hot water temperature sensor 28 Detect the temperature of mixed hot water, and if it differs from the set temperature value for private washing (122N
), the water is discarded (123), and the same operation is continued until the temperature reaches the set temperature for private washing.

Then, turn on the local cleaning switch according to the human power of the signal (
124) Then, drive the valve drive device 25a to open the 1 m valve 25 for the private parts cleaning device, and spray the appropriate temperature cleaning water toward the private parts to clean them (125).

Also, after cleaning, the cleaning operation is completed by turning off the private part cleaning switch (126), and then it is determined whether there was any other manual effort to supply hot water (12'). ), if there is no input (127N), turn off the seating detection means by moving away from the toilet seat (12?a), cancel the priority code, return to standby state (127b), and if there is input (127N) 127Y), cancel the priority code 127c),
It resumes accepting instructions for hot water supply to each hot water supply light, and hot water is supplied according to the instructions in the memory.

On the other hand, when a person sits on the private part cleaning device 21 while hot water is being filled, the seating detection means turns on (120), and based on this on signal, the control device controls each flow path, especially the bathtub flow path 1.
It is determined that the hot water filling operation is being performed based on the output signal of the flow rate sensor 30 provided at 8 (121Y), and the on output of the private part washing switch is awaited.

After that, when the private part cleaning switch is turned on (128), the memory 38 of the control unit memorizes the hot water filling conditions (for example, set temperature, integrated flow rate, etc.) in the bathtub flow path 18 (
129), the valve driving device 27a is driven to close the flow rate regulating valve 27 for filling hot water, and the hot water filling operation is stopped (130).

Next, the temperature of the mixed hot water is detected by the mixed hot water temperature sensor 28, and if it is lower than the private part cleaning set temperature value (131N).
Then, the water is discarded (132), and the same operation is continued until the temperature reaches the set temperature for private washing.

Then, when the measured temperature value of the mixed hot water reaches the private part cleaning set temperature value (131V), the valve driving device 25a is driven to open the flow rate adjustment valve 25 (133), and the mixed hot water is supplied to the private part cleaning device 21. Then wash your private parts.

Further, after sufficiently washing the private parts, if the private parts washing switch is turned off (134), the valve driving device 25a stops,
The flow rate regulating valve 25 is closed (135), and therefore, the supply of mixed hot water to the private part cleaning device 21 is stopped, and the cleaning operation is completed.

At this point, priority is still given to the private parts cleaning bag 'l 21, so when turning the private parts cleaning switch on and off not only once but also multiple times, the hot water suitable for private parts is used. Control of the temperature flow rate can be continued, and usability can be improved.

Next, when the user stands up from the private part cleaning device 21, the seating detection means outputs an off output (136), and the off output causes the control device to remove the hot water in the bathtub flow path 18 stored in step (129). The tension conditions (for example, set temperature, integrated flow rate, etc.) are read out (137), and the flow rate adjustment valve 27 is opened using the valve drive bag W 27a (138).
), the operation of filling the bathtub 23 with mixed hot water through the hot water filling channel 18 continues (139).

As described above, in this embodiment, when the mixed hot water is not supplied to any device other than the private part cleaning device 21, the private part cleaning operation priority time t starts with the ON output of the seating detection means. You can complete the temperature adjustment of the washing water before turning on the washing switch, and as soon as you turn on the washing switch, a mixture of warm water and water at the appropriate temperature can be sprayed to your private parts, allowing you to use your toilet comfortably. can.

On the other hand, if the mixed hot water is being supplied to a location other than the private parts cleaning device 21 (in this embodiment, the bathtub 23), depending on the ON output of the seating detection means, the private parts cleaning operation priority time j
! + Without starting 5, then add urinals,
Since it is controlled to start only after the private part washing switch is turned on, the interruption time of the hot water filling operation can be shortened as much as possible, and hot water filling can be completed quickly.

The end timing of the priority use of private parts cleaning operation depends on whether or not other channels are being used, whether there is a desire to use other channels (whether or not there is a hot water supply instruction input from the priority hot water supply destination), and By comparing and considering the usability of the private part cleaning device 21 and the priority hot water supply destination, it may be set either when the private part cleaning switch is detected to be off or when the seating detection means is turned off.

In addition, in the automatic hot water supply operation shown in FIGS. 2 and 3, only the bathtub/shower system flow path consisting of the bathtub flow path 18, the shower flow path 19a, or the flush flow path 19b, etc. is used using a single temperature control pulp B. In addition, hot water can be automatically supplied to the private part washer system flow path consisting of the private part cleansing device flow path 16 or the wash basin flow path 17, thereby significantly reducing sanitary equipment costs in large-scale facilities such as hotels. I can do it.

In addition, when the private part cleaning device 21 is used, that is, during the private part cleaning operation priority time, the supply of mixed hot water to the bathtub/shower system flow path consisting of the bathtub flow path 18, shower flow path, etc. is completely interrupted. Since the system is configured so that the mixed hot water supply conditions are stopped at The control can be performed easily and quickly, and the mixed hot water for cleaning can be sprayed toward the private parts at an appropriate temperature (safe temperature), an appropriate amount, and an appropriate injection pressure to clean the private parts.

Furthermore, in this embodiment, as shown in FIG.
Since they are arranged closer than 23 and 24, the time constant of the control device can be reduced, and the responsiveness to various sensors 28, 29, 30° 31, etc. can be improved, allowing precise control i'fa, making it easier to use. people can relieve themselves comfortably.

In addition, in the subroutine shown in Fig. 3, the water disposal operation (
123) In (132), the temperature of the mixed hot water may be corrected by constantly discharging water rapidly, and the temperature may be counted using a counting means such as a mixed hot water flow rate sensor or a timer. However, when a predetermined count is reached, the temperature of the mixed hot water can be corrected by discarding ml of water each time.

Furthermore, when the seating detection means is turned on, the controllers 41, 42, 4 other than the private part cleaning device controller 40
3, the priority use of the private parts cleaning device can also be displayed.

[Brief explanation of the drawing]

FIG. 1 is a conceptual diagram for explaining the construction of an automatic water supply device according to the present invention, FIG. 2 is a flowchart showing the order of operation of the main routine of the automatic water supply device, and FIG. 3 is a flowchart showing the order of operation of subroutines. . In the figure, A: Automatic hot water supply device B: Temperature control pulp C: Flow rate adjustment/water supply/switching pulp D: Control device E: Pressure balance valve 16: Private cleaning device channel 17: Wash basin channel 18: Bathtub channel 19 :Shower flow path 21: Private cleaning device 22: Wash basin 23: Bathtub
24: Shower 24a: Karan

Claims (1)

[Claims] 1. The downstream side of the hot water supply passage whose upstream side communicates with the hot water supply source is connected to a plurality of passages via a switching valve (C), and a control signal from a control device (D) is transmitted. The hot water supply source and the switching valve (C) are controlled to selectively supply hot water at an appropriate temperature from the hot water supply flow path to each system flow path. be configured so that it can be used preferentially to roads,
and an automatic hot water supply device characterized in that when the specific flow path is used, the timing of starting or ending the preferential use is varied depending on whether or not other flow paths are used or whether a hot water supply instruction is input or not. . 2. If other flow paths are used, priority use of the private parts cleaning device flow path constituting the specific flow path is started with the ON output of the cleaning switch that is output after the ON output of the seating detection means, 2. The automatic hot water supply device according to claim 1, wherein when the other flow paths are not used, priority operation for the private part cleaning device flow path is started when the seating detection means turns on.