JP3018744B2 - Water spouting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a variable water discharge port for which it is desired to periodically change the water discharge amount from a water discharge port and another water discharge port, and discharges water from one of the water discharge ports. Water discharge device.

[0002]

2. Description of the Related Art A water discharge device of this type is installed and used in a bathroom or a pool. For example, a high value-added water discharge device that periodically changes the amount of water discharged from a water discharge port such as a shower head in a bathroom is used. Things have been suggested. In changing the water discharge amount in this manner, a flow control valve or the like is provided in a pipe of a pipe reaching the water discharge port, the flow control valve is drive-controlled, and the flow reaching the shower head via the pipe is controlled. I am adjusting.

[0003]

For example, in a water spouting device having a shower head, the amount of hot and cold water obtained by mixing high-temperature hot water and water from a water heater with a hot water mixing tap is described above. The water is discharged from the shower head while being periodically changed by the flow control valve. For this reason, the following problems have been pointed out.

When the mixed hot and cold water from the shower head is spouted while the spouting amount is periodically changed, it is necessary to control the flow control valve so as to reduce the spouting amount in the course of the periodic change of the spouting amount. is there. In the case where the flow control valve is controlled to reduce the water discharge amount in this manner, if the change in the water discharge amount is sharp, a misfire of the water heater supplying hot water may be caused, which is not preferable.

[0005] The flow control valve is provided independently in a pipe of high-temperature hot water and water reaching the hot-water mixer tap,
Although it is provided in a pipe of mixed hot and cold water downstream of the hot and cold water mixing tap, the flow control valve provided at any position has such a problem.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to avoid inconvenience caused by a sudden change in the amount of water discharged when the amount of water discharged is periodically changed.

[0007]

In order to achieve the above object, the means adopted by the present invention is to provide a water discharge amount variable water discharge port where it is desired to periodically change the water discharge amount and a water discharge amount other than that. A spouting device for spouting a fluid supplied from a fluid supply source from any of the spouts, wherein the spouting is performed in addition to the spouting from the spouting amount variable spout while discharging from the spouting amount variable spout. A plurality of water outlets for performing water discharge from water outlets other than the variable water discharge amount water outlet, and a case where the water discharge between the variable water discharge amount water outlet and the other water outlets is performed by the multiple water outlet water discharge execution means. The gist of the present invention is to further include a water discharge amount changing means for periodically changing the water discharge amount from any of the water discharge amount variable water discharge port and the other water discharge ports.

[0008]

In the water discharge device having the above-described structure, the water discharge from the water discharge ports other than the variable water discharge amount water discharge port is performed by the multiple water discharge port water discharge execution means while the water is discharged from the variable water discharge amount water discharge port. At this time, the water discharge amount from any of the variable water discharge ports or the other water discharge ports is periodically changed by the water discharge amount changing means.

Therefore, if the water outlet whose water discharge amount varies periodically is a variable water discharge amount water outlet, the water discharge from the variable water discharge amount water discharge naturally is a water discharge whose water discharge amount changes periodically. On the other hand, even if the water outlet where the water discharge amount changes periodically is a water outlet other than the variable water discharge amount water outlet, the water discharge from the water discharge amount variable water discharge port is periodically changed from the water discharge port other than the water discharge amount variable water discharge port. Under the influence of a great change in the water discharge amount, the water discharge amount changes periodically. Thus, when the water discharge amount changes periodically, it is not necessary to suddenly change the total supply amount of the fluid supplied from the fluid supply source to the variable water discharge port and the other water discharge ports.

[0010]

Next, an embodiment in which the water discharge device 1 according to the present invention is applied to a hot water supply system for a bathroom will be described with reference to the drawings. FIG. 1 is an external view of a bathroom, and FIG. 2 is a block diagram showing an overall configuration of a water discharging device 1. First, the configuration of a bathroom having a plurality of hot water supply points will be described.

As shown in FIG. 1, the water discharge device 1 of the present embodiment
Includes a bath caran BK for discharging water to a bathtub, a shower tower ST having a shower head S configured to be able to move up and down, and a washing area Karan AK for discharging water to a washing area as hot water supply points in a bathroom. The shower tower ST has a built-in electronic control device SS (see FIG. 2) for performing various controls of the entire water discharge device, and an operation panel P for outputting a control signal to the electronic control device SS is provided on a panel surface of the shower tower ST. Is provided. In addition, the bath curan BK and the washing place curan AK are connected to a hot and cold water mixing tap UM by a pipe disposed in the bathroom wall. A water discharge temperature setting panel, which will be described later, for changing the water discharge temperature is provided in a portion of the bath curan BK and the washing place curan AK exposed in the bathroom.

The shower head S is a water outlet for which it is desired to periodically change the water discharge amount, and has a built-in water discharge mode switching mechanism for switching between four types of water discharge modes, as described later. The water discharge form is appropriately selected from various water discharge forms. In the present embodiment, a water discharge form in which a rod-shaped water discharge is laid, a straight water discharge form, a foam water discharge form, and a mist discharge in the form of mist. The form of water discharge was used.
That is, the shower head S is configured to be able to periodically change the water discharge amount for each water discharge mode. The detailed configuration will be described later.

Next, the electrical configuration of the water discharging device 1 and the configuration of each device will be described. As shown in the block diagram of FIG. 2, the hot water mixer tap UM is connected to a water inflow pipe 3 and a hot water inflow pipe 5 from a hot water heater (not shown), respectively. Flow sensors 7, 9 for detecting pressure
And temperature sensors 11 and 13 for detecting water temperature and hot water temperature in each pipeline. The water heater is a stop-on instant water heater.

The water and hot water pipes of the hot and cold water mixing tap UM are provided with flow control valves 15 and 17 for adjusting the flow rates of the water and hot water in the respective pipes.
7, actuators 19 and 21 for controlling the flow rate are attached. The downstream of each of the flow control valves 15 and 17 is joined to form a merging flow path 23, and the water and hot water in the respective pipe lines merge and mix here. The temperature of the hot water in the junction channel 23 is determined by the respective temperatures of the water and the hot water and the mixing ratio thereof. Merging channel 23
Is provided with a temperature sensor 25 for detecting the temperature of the mixed hot and cold water in the flow path.

Downstream of the junction channel 23 is a water discharge switching section 27.
Is provided, and a shower head S and a bath currant B are provided here.
A soot water pipe SH for so-called soot water, which is directly connected to a drain pipe for discharging the wastewater in the bathroom K, the washing machine Karan AK and the bathroom to the outside, is connected. This water discharge switching unit 27
A solenoid valve 27 for opening and closing a pipe between the merging flow path 23 and each of the above-mentioned water outlets is for determining the destination of the water discharge of the mixed water.
a to 27d are provided for each spout. And
Each of the solenoid valves 27a to 27d is turned on / off by the electronic control unit SS to change the water discharge destination.
The ON / OFF of each electromagnetic valve by the electronic control unit SS is performed based on the use state of the shower head S and the operation of the water discharge temperature setting panels 35 and 37 provided in the washing basin AK and the bath basin BK. The curl units 31, 33 of the wash basin KARAN and the bath curan BK are provided with a water discharge temperature setting panel 35, 37 and a mechanism for adjusting the water discharge amount when the solenoid valve is opened.

The above-mentioned flow rate sensors, temperature sensors, actuators of the hot and cold mixing tap UM, the respective solenoid valves 27a to 27d of the water discharge switching section 27, and the respective callan sections 31, 3
3 and the water discharge temperature setting panels 35 and 37 and the shower head S having a mechanism for adjusting the water discharge amount are connected to the electronic control unit SS of the shower tower ST together with the operation panel P. The electronic control unit SS controls the amount of drive of the actuator based on signals input from each sensor and panel.
The water discharge destination and the like are determined, and the actuators 19 and 21 and the water discharge switching unit 27 are drive-controlled.

When each of the actuators 19 and 21 is driven by the electronic control unit SS, water and hot water having a flow rate determined by the drive amount of each actuator flows into the merging flow path 23 and is mixed. Accordingly, from the shower head S or each of the currans set as the water discharge destination by the water discharge switching unit 27, the temperature of the water and the hot water itself and the temperature determined by the flow ratio of the water and the hot water regulated by the flow control valves 15, 17 are determined. Mixed hot water is spouted.

The shower tower ST of the above-mentioned water discharging device 1
As shown in FIG. 2, the electronic control unit SS is configured as a logical operation circuit centered on a well-known CPU 41, ROM 42, RAM 43, backup RAM 44, and timer 45, and connected to each other via a common bus 46. Input / output with the outside is performed by the output port 47.
The above-described sensors and the like are connected to the input / output port 47.

The operation panel P is used to set a water discharge amount per unit time (hereinafter, simply referred to as a water discharge amount) and a water discharge temperature for each water discharge destination and water discharge form in addition to designation of each water discharge destination and water discharge form. As shown in FIG. 1, it is installed at a height that allows the user to operate it while standing.

The operation panel P is, as shown in FIG.
A button 50 for turning on the power, a character string display 51 for displaying various messages, a water discharge amount display 52 for relatively displaying the water discharge amount from the water discharge destination, and a water discharge temperature for numerically displaying the water discharge temperature from the water discharge destination. A display 53, a press-type bath curan instruction button 54 for individually designating a water discharge destination, a wash basin instruction button 55, and a shower head designation button 56
And a group of buttons for setting a water discharge amount and a water discharge temperature, in addition to a singing designation button 57, a straight designation button 58, a foam designation button 59, a mist designation button 60, etc. for designating a form of water discharge from the shower head S. And a button group for periodically changing the amount of water discharged from the shower head S.

A button group for setting a water discharge amount and a water discharge temperature includes a setting button 61 provided at a lower stage of each of the above-mentioned designation buttons for specifying a water discharge form, and a water discharge temperature increase provided at the left, right, up, and down thereof. It comprises an instruction button 62, a water discharge temperature decrease instruction button 63, a water discharge amount increase instruction button 64, and a water discharge amount decrease instruction button 65. Setting button 61
Is pressed before and after the change operation to change the water discharge temperature and the water discharge amount, and outputs a control signal for starting and ending the change to the electronic control unit SS.
Each of the instruction buttons outputs a control signal corresponding to the corresponding water discharge amount or the change amount of the water discharge temperature to the electronic control unit SS. In response to this, the electronic control unit SS sets the water discharge temperature and the water discharge amount as follows.

First, when a button to be set, for example, a singing designation button 57, is pressed after the setting button 61, a state is set in which the water discharge temperature or the water discharge amount for the water discharge form of singing can be set. Thereafter, when the water discharge temperature increase instruction button 62 or the like is operated, the water discharge temperature or the water discharge amount is changed according to the number of times of operation. Next, when the setting button 61 is pressed again, the changed water discharge temperature and water discharge amount are written at predetermined addresses in the backup RAM 44. Such setting of the water discharge temperature and the water discharge amount is performed not only for each water discharge destination but also for each water discharge form. As shown in the figure, in addition to a character string, a picture in which the corresponding function is designed is written on the surface of each button.

A button group for periodically changing the amount of water discharged from the shower head S includes a water discharge amount short cycle setting button 66 provided on the right side of the shower head designation button 56 in three stages of upper, middle, and lower. It is composed of a water volume middle cycle setting button 67 and a water discharge large cycle setting button 68. Each of these cycle setting buttons, when pressed, sends a control signal corresponding to a cycle for changing the water discharge amount to the electronic control unit SS.
And the electronic control unit SS receiving the signal sets a cycle for changing the water discharge amount. Note that the water discharge amount change cycle (short cycle, middle cycle,
The large cycle is written in the ROM 42 in advance, and is read as a control parameter each time the cycle setting button is pressed.

In this case, in the initial state when the power is turned on, the water discharge amount change cycle is not set, and the corresponding cycle is set only after each of the cycle setting buttons is pressed. If the same cycle setting button is continuously pressed, the cycle set so far is canceled, and the water discharge amount change cycle is set to an initial state in which the cycle is not set.

Here, the buttons other than the instruction buttons such as the water discharge temperature increase instruction button 62 and the cycle setting buttons such as the water discharge amount short cycle setting button 66 will be described. When a push-type bus currant instruction button 54 or the like for individually designating a water discharge destination or a squat designation button 57 or the like for specifying a water discharge mode is pressed, a signal thereof is input to the electronic control unit SS,
The water discharge destination and the water discharge form are switched by the electronic control unit SS receiving this. For example, when the bath curan instruction button 54 is pressed, water is discharged from the curan section 33 of the bath curan BK, and similarly, when the wash area curan instruction button 55 or the shower head designation button 56 is pressed, the water is discharged from the wash area curan AK or the shower head S. It is spouted. Moreover, if a designation button for designating a different water discharge destination is pressed while water is being discharged from a certain water discharge destination, the water discharge from the above-mentioned water discharge destination that has been discharging water until then is interrupted, and The water is discharged from the corresponding water discharge destination. Similarly, water is discharged from the shower head S in the water discharge mode corresponding to the pressed specification button for each of the specification buttons for specifying the water discharge mode. The manner of changing the water discharge mode will be described later in detail.

The water discharge temperature setting panels 35 and 37 of the washing area Karan AK and the bath curan BK change the water discharge temperature at the time of water discharge, a water discharge designation button for switching water discharge among water, temperature-adjusted mixed water, and hot water. A button for changing the temperature is provided, however, since it is not directly related to the gist of the present invention, the description thereof is omitted.

Next, the shower head S will be described. As shown in FIG. 4, the shower head S, which can switch between four types of water discharge modes such as squatting, has a water discharge channel 70.
A shower head main body 72 formed by securing a device storage space 71 other than the flow path, and a cap 74 formed by opening a water discharge window 73 on the side surface. It is constructed by assembling. Further, it is connected to the end of the shower hose 75 connected to the water discharge switching section 27 via a connection fitting 76.

In a space formed by the shower head main body 72 and the cap 74, a rotary shaft 78 of a motor 77 housed in the equipment housing space 71 penetrates through the sealing members 79a and 79b and protrudes from the main body side. A rotary spout 80 is fixed to the rotary shaft 78. The rotating water discharge body 80 is a water discharge nozzle divided into four in the circumferential direction (in the figure, the water discharge nozzle 80
a, 80b) and rotates integrally with the rotating shaft 78. Each water discharge nozzle is provided with a water discharge inflow hole 81 on its bottom surface, and on its side surface is provided with water discharge holes (water discharge holes 82a and 82b are shown in the figure) for realizing water discharge in each of the above water discharge forms. In addition, the sealing members 79a and 79b are provided with a water discharge nozzle (see FIG.
Water discharge nozzle 80 with water discharge hole 82a facing water discharge window 73
A communication hole 83 is provided between the water discharge inflow hole 81 and the water discharge passage 70 in FIG.

Accordingly, when the shower head S is set as a water discharge destination by the water discharge switching unit 27 and a predetermined water discharge nozzle is made to face the water discharge window 73 by the motor 77, the hot water flowing from the shower hose 75 is discharged in the figure. As shown by arrows, the water discharge passage 70 of the shower head main body 72 and the communication hole 8
3. The water reaches the water discharge nozzle through the water discharge hole 81. After passing through the water discharge hole of the predetermined water discharge nozzle, water is discharged in a water discharge form corresponding to the water discharge hole. For example, if the water discharge nozzle 80a is a water discharge nozzle provided with a water discharge hole 82a corresponding to water discharge in a straight water discharge form, and as shown in the drawing, if the water discharge hole 82a faces the water discharge window 73, from the water discharge window 73, Water is discharged in a straight water discharge form. Further, the water discharge nozzle 80b is a water discharge nozzle provided with a water discharge hole 82b corresponding to a water discharge in a sloping water discharge form. When the water discharge hole 82b faces the water discharge window 73 by rotating by 180 degrees from the position shown in the figure, a water discharge window is provided. From 73, water is spouted in the form of spouting water.

The equipment storage space 7 of the shower head main body 72
In addition to the motor 77, an electronic control unit (not shown) for controlling the driving of the motor and a water discharge nozzle that detects the rotation position of the rotation shaft 78 and exposes the water discharge hole to the water discharge window 73 are provided in 1. A water discharge mode detection sensor (not shown) for performing the operation is stored. Further, in the thick portion 72a of the main body side wall below the water discharge window 73, a water discharge form selection button 84 for changing a water discharge nozzle for causing a water discharge hole to face the water discharge window 73 and selecting a water discharge form, and a water supply from the shower head S are provided. An on / off button 85 and the like for instructing start / stop of water discharge are covered with a waterproof resin sheet 86 and are disposed so as to be freely pressed.

The electronic control unit on the shower head S side is connected not only to the above-mentioned sensors and buttons, but also to the electronic control unit SS in the shower tower ST in consideration of leakage. Then, a control signal is exchanged between the two electronic control units.

Specifically, the ON / OFF of the shower head S side
When the off button 85 is pressed to instruct the start / stop of water discharge from the shower head S, a control signal is output to the electronic control unit SS in the shower tower ST via the electronic control unit on the shower head S side. Then, the water discharge switching unit 27 is controlled by the electronic control unit SS which receives this signal, and the electromagnetic valve is turned on / off, and the water discharge from the shower head S is started or stopped. In addition, shower tower S
The singing designation button 57, the straight designation button 58, the foam designation button 59, the mist designation button 60, and the water discharge form selection button 8 of the shower head S of the operation panel P attached to T
When 4 is pressed to change the water discharge mode, a control signal is transmitted and received between the electronic control unit SS and the electronic control unit on the showerhead S side. That is, a signal for starting motor rotation is output from the electronic control unit SS, and a signal indicating completion of change of the water discharge mode is output to the electronic control unit SS. By transmitting and receiving such a signal, the drive of the motor 77 is controlled by the electronic control device on the shower head S side, and the water discharge nozzle rotates, and the water discharge nozzle corresponding to the selected water discharge form causes the water discharge hole to face the water discharge window 73. And stop.

Next, various controls performed by the water discharge device 1 of the present embodiment having the above-described configuration will be described with reference to the drawings.

The flowcharts of FIGS. 5, 6 and 7 are as follows.
Water discharge control (routine) which is the main control of the water discharge device 1
The flow chart of FIG. 8 shows a water discharge form change control (routine) when the water discharge form is changed by the water discharge form selection button 84 of the shower head S, the singing designation button 57 of the operation panel P, and the like.

5 and 6 show the first half and the second half of the water discharge routine, and the flowchart of FIG. 7 shows a part of the latter half of the process. This water discharge routine is repeatedly executed on the electronic control unit SS side when the power is turned on. First, an initial process executed only when the power is turned on, that is, an internal register of the CPU is cleared. Thereafter, as shown in FIG. 5, the data of the water discharge destination map for specifying the water discharge destination and the water discharge form map for specifying the water discharge form from the shower head S are read to determine the water discharge destination and the water discharge form from the shower head S. (Step 100: Hereinafter, the step is simply described as S).

In this water discharge destination map, codes indicating execution of water discharge and non-execution of water discharge, for example, 1 and 0 are stored in the washing area
K, the bath currant BK, and the shower head S, and are written in a predetermined address of the backup RAM 44 secured as an area for determining a water discharge destination. For example, if the value 1 is written as a code corresponding to the shower head S, the shower head S is determined as a water discharge destination. Further, if 0 is written in all of the washing area KARAN AK, the bath KARAN BK, and the shower head S, it is determined that no water is discharged from any of the water discharge destinations. The writing of the code having the value 1 can be performed by pressing a button such as the bath cull instruction button 54 on the operation panel P, a water discharge designation button on the water discharge temperature setting panel of each cull unit, or an on / off button on the shower head S. Is interrupted at the time when the command is pressed. If the same button is continuously pressed twice, a code of 0 (non-water discharge execution) is written at that time for the corresponding water discharge destination. Further, in the initial process, a code of all 0 (non-water discharge) is written to each water discharge destination.

Similarly to the above-mentioned water discharge destination map, the water discharge form map includes codes indicating the water discharge form selection and the water discharge form non-selection, for example, 1 and 0, for the four water discharge forms from the shower head S (song, (Straight, foam, mist) is written at a predetermined address of the backup RAM 44. For example, if the value 1 is written as a code corresponding to a song, it is determined that the water discharge mode is a song. In order for the water discharged in the water discharge form determined by this water discharge form map to be discharged from the shower head S, the code corresponding to the shower head S in the water discharge destination map is set to the value 1.
Is done when is written. The writing of the code of the value 1 into the water discharge form map can be performed by using the singing designation button 57 and the straight designation button 5 on the operation panel P.
8. When the foam designation button 59, the mist designation button 60, or the water discharge mode selection button 84 of the shower head S is pressed, an interruption process is performed. Also, in the initial processing, a code of value 1 (water discharge mode selection) is written only for a straight water discharge mode that is frequently used.

Next, the water discharge amount and the water discharge temperature preset for the water discharge destination and the water discharge form read in S100 are read from the backup RAM 44 (S110). The set water discharge amount and the set water discharge temperature are determined by a temperature change button (not shown) on the water discharge temperature setting panel 35 of each curan,
The daily operation of the water discharge temperature increase instruction button 62, the water discharge temperature decrease instruction button 63, etc. on the operation panel P, and the operation at the time of construction of the water discharge device 1 are performed in advance by the backup RA
It is written to a predetermined address of M44. This writing is interrupted when the corresponding button is operated, and is set according to each water discharge destination and water discharge form.

Subsequent to the reading of the water discharge destination, etc., the flow sensors 7, 9 and the temperature sensors 11, 1 in the hot / water mixer tap UM are read.
The temperature and flow rate of the water itself and the temperature of the hot water itself in the inflow pipe 3 and the inflow pipe 5 are read from the sensors 3 and the like, and the water discharge temperature is read from the temperature sensor 25 provided in the merging flow path 23 (S120). . At this time, the merging channel 23
A control signal corresponding to the detected water discharge temperature is output to the operation panel P, and the temperature is displayed on the water discharge temperature display 53.

Next, the flow rates of water and hot water are calculated based on the set water discharge amount and the set water discharge temperature read in S110, the detection values from the sensors read in S120, and the like (S1).
30). Then, the flow rate adjustment amounts of the flow rate adjustment valves 15 and 17 corresponding to the calculated flow rates, that is, the drive amounts of the actuators 19 and 21 are calculated (S140). Next, a drive signal is output to each actuator to execute the water discharge at the water discharge amount and the water discharge temperature read at S110 from the water discharge destination read at S100 (S
150). In response to this signal, each actuator is driven and each flow rate adjusting valve adjusts the flow rate, so that the calculated flow rate of water and hot water flows into the merging flow path 23 and prepares for water discharge through the switching control by the water discharge switching unit 27. .

Thereafter, it is determined whether or not the water discharge destination read in S100 is the shower head S (S155).
Here, if it is determined that the water discharge destination is other than the shower head S (in the present embodiment, the washing area Karan AK or the bath Karan BK), it corresponds to the water discharging destination (either the washing area Karan AK or the bath Karan BK) read in S100. A drive signal (ON signal) is output to the electromagnetic valve 27a or 27b of the water discharge switching section 27 (S160). In response to this signal, the water discharge switching unit 27 turns on the corresponding electromagnetic valve, thereby controlling the water discharge destination (washing area Karan AK or bath Karan B) that is switched.
K), the mixed hot water adjusted to the set water discharge amount and the set water discharge temperature in S150 is discharged. That is,
If the destination of the water discharge is each of the wash parts Karan AK or Baskaran BK, there is no obstacle in starting water discharge, so the corresponding electromagnetic valve 27a or 27b is driven to immediately discharge water from the Karan part.

After the water is thus discharged, the flow shifts to S100, and the processing described above is repeated. Therefore, if the water discharge destination determined in S100 is each of the wash basin Karan AK or the Baskaran BK, when water discharge is started from the water discharge destination, the water discharge is performed until the code of the water discharge destination map relating to the water discharge destination becomes 0. Will be continued.

On the other hand, if it is determined in S155 that the water discharge destination is the shower head S, the process proceeds to S of the flowchart shown in FIG.
It moves to 165. In S165, there is an instruction to change the water discharge mode depending on whether or not the operation button P, the straight specification button 58, the foam specification button 59, the mist specification button 60, and the water discharge mode selection button 84 of the shower head S on the operation panel P are operated. It is determined whether or not. Here, if it is not necessary to change the water discharge form from the shower head S unless the above buttons are operated, then the cycle is set when the water discharge amount from the shower head S is periodically changed. It is determined whether or not there is (S170).

This determination is made by the water discharge amount short cycle setting button 66
And so on, based on the pressed state of each cycle setting button. That is, if any cycle setting button is pressed, it is determined that it is necessary to set the water discharge amount change cycle, and if neither cycle setting button is pressed, it is determined that the water discharge amount does not need to be changed. Then, a drive signal (ON signal) is output to the electromagnetic valve 27c of the water discharge switching unit 27 corresponding to the shower head S (S178), and then S1
Move to 00.

On the other hand, when it is determined that it is necessary to set the water discharge amount change cycle, as shown in FIG. 7, the water discharge amount change cycle (short cycle, middle cycle, large cycle) corresponding to the pressed cycle setting button. (Cycle) is read from the ROM 42 (S17).
2) A drive signal and a stop signal (ON / OFF signal) are output at the read cycle to the electromagnetic valve 27d that opens and closes the conduit between the water pipe SH and the merging flow path 23, and the electromagnetic valve 2
A drive signal (ON signal) is output to 7c (S175),
Then, the process proceeds to S100.

In other words, even if the water discharge destination is the shower head S, if there is no need to change the water discharge mode, that is, if the water discharge nozzle needs to be changed by the rotation of the rotary water discharge body 80, there is no obstacle in starting the water discharge. So the solenoid valve 27
c is driven to immediately discharge water from the shower head S. However, when the amount of water discharged from the shower head S is periodically changed, the shower head S via the electromagnetic valve 27c is used.
Of the water pipe S through the drive / stop of the solenoid valve 27d according to the cycle corresponding to the cycle setting button in addition to the water discharge from the water pipe S
Rinse out of bathroom from H. And shower head S
Until the code of the water discharge destination map is set to 0, the water discharge from the shower head S is continued in the same water discharge form, and the periodic water discharge is also performed in parallel.

On the other hand, if it is determined in S165 that the form of water discharge from the shower head S needs to be changed, first, the water discharge switching unit 27 corresponding to a water discharge destination other than the shower head S (either the washing area Karan AK or the bath Karan BK). A drive signal (ON signal) is output to the solenoid valve 27a or 27b (S
180) Then, a drive signal (off signal) is output to the electromagnetic valve 27c of the water discharge switching unit 27 corresponding to the shower head S (S190). That is, the water discharge destination is the shower head S
In the case of changing the water discharge form, the start of water discharge from a water discharge destination (either the washing area Karan AK or the bath curan BK) other than the shower head S and the interruption of water discharge from the shower head S are in this order. Execute sequentially.

Thereafter, it is determined whether or not the change of the water discharge form accompanying the rotation of the rotary water discharge body 80 has been completed (S19).
5). This determination is made based on whether or not a water discharge mode change completion signal has been input from the electronic control device on the shower head S side.
Here, if it is determined that the change of the water discharge mode is not completed, it is determined that the water discharge from the shower head S in the water discharge mode instructed to be changed cannot be started, and the process proceeds to S100 described above, and the processing of each of the above steps is performed. , Until the change of the water discharge form is completed. In other words, until the rotation of the rotary water discharger 80 is completed, water discharge from the shower head S is in a standby state, and water discharge from water discharge destinations other than the shower head S is in an executable state.

On the other hand, if it is determined in step S195 that the change of the water discharge form has been completed based on the water discharge form change completion signal, the water discharge amount from the shower head S is periodically changed in the changed water discharge form in the same manner as in S170. It is determined whether or not the setting of the cycle at the time of changing is made (S19).
8). Here, if a positive determination is made, S172 and S1 in FIG.
After the process 74, the water discharge from the shower head S and the rinse water from the water pipe SH are transferred to S100 in parallel, and if a negative determination is made, the shower head S in the water discharge mode instructed to change is used. Assuming that water discharge can be started, the next S2
Move to 00.

In S200, a drive signal (ON signal) is output to the solenoid valve 27c of the water discharge switching section 27 corresponding to the shower head S. Thereafter, the solenoid valve 27a or 27 of the water discharge switching unit 27 corresponding to the water discharge destination other than the shower head S (either the washing area Karan AK or the bath Karan BK).
b, a drive signal (off signal) is output (S210), and S1
Move to 00. In other words, after changing the water discharge form,
The start of water discharge from the shower head S and the water discharge destination other than the shower head S (washing area Karan AK or bath Karan BK)
) Is sequentially executed in this order.

Therefore, the water discharge from the shower head S in the water discharge mode instructed to be changed is performed at the set water discharge amount and the set water discharge temperature. Further, the water discharge from the shower head S in the water discharge mode instructed to change is continued until the code of the water discharge destination map relating to the shower head S is set to 0, or until the water discharge mode is instructed to change again. Will be.

Next, the water discharge mode changing routine will be described. This water discharge mode change routine is performed by the slap designation button 57 and the straight designation button 5 on the operation panel P.
8. Each time the foam designation button 59, the mist designation button 60, or the water discharge mode selection button 84 of the shower head S is pressed, the electronic control unit of the shower head S executes an interruption.

When the water discharge mode changing routine is executed in this manner, first, as shown in FIG. 8, this routine is based on a change instruction from each of the buttons on the operation panel P for individually specifying the water discharge mode, It is determined whether the change is based on a change instruction from the water discharge mode selection button 84 of the head S (S300). If it is determined that the instruction is a change instruction from the water discharge mode selection button 84, the drive amount (90 degrees × N) of the motor 77 is calculated according to the number of operations N (S31).
0), the process proceeds to S330 described later.

On the other hand, if it is determined that the instruction is a change instruction from each of the buttons on the operation panel P, it is determined whether the current water discharge form from the shower head S is the water discharge form instructed to be changed by the water discharge form detection sensor. A determination is made based on the detection signal (S315). Here, if an affirmative determination is made, this routine ends without performing any processing. However, if a negative determination is made, the amount of rotation of the rotary water discharger 80, that is, the amount of drive of the motor 77, required to change the current water discharge form determined from the water discharge form detection sensor to the change-instructed water discharge form is calculated (S320). ). For example, as shown in FIG. 4, when the current water discharge mode is straight and the water discharge nozzle 80 a has the water discharge hole 82 a facing the water discharge window 73, and the water discharge nozzle 80 a is instructed to change the water discharge nozzle 82 a, the water discharge nozzle is changed. The driving amount (180) until the water discharge hole 82b faces the water discharge window 73
Degree of rotational drive) is calculated.

When the motor drive amount is calculated in S310 and S320 in this way, a drive signal corresponding to the calculated drive amount is output to the motor 77 (S330), and the rotary water discharger 80 is driven.
To rotate.

Thereafter, it is determined whether or not the change of the water discharge form accompanying the rotation of the rotary water discharge body 80 is completed based on the detection result from the water discharge form detection sensor (S335), and the process stands by until the change is completed. In the case of the change of the water discharge form described above, it is determined whether or not the rotary water discharge body 80 has rotated by 180 degrees and the water discharge nozzle 80b has reached a position where the water discharge hole 82b faces the water discharge window 73, and waits until that. . Here, if it is determined that the change to the instructed water discharge mode has been completed, a water discharge mode change completion signal is output to the electronic control unit SS (S34).
0), this routine is temporarily ended.

When the water discharge mode change completion signal is output in this manner, the electronic control unit SS that has received the signal determines that the change of the water discharge mode has been completed in S195 in the above water discharge routine, and as described above, from S198 onward. Execute the processing of Therefore, water discharge from the shower head S in the water discharge mode instructed to change is performed at the set water discharge amount and the set water discharge temperature. Moreover, the water discharge from the shower head S is performed while periodically changing the water discharge amount.

As described above, the water discharge device 1 of the present embodiment
If it is necessary to periodically change the amount of water discharged from the shower head S while the mixed hot and cold water is being discharged from the shower head S, in addition to the water discharged from the shower head S, the water pipe SH Water is drained while periodically changing the water discharge amount (solute water amount) via ON / OFF of the solenoid valve 27d in the water discharge amount change cycle corresponding to the cycle setting button. However, at this time, the flow control valve 1 in the water inflow pipe 3 and the hot water inflow pipe 5 reaching the merging flow path 23.
Since the flow rate adjustment by 5 and 17 is not changed, the flow rate of the mixed hot water passing through the merging flow path 23 is substantially constant at the set water discharge amount. Therefore, the amount of water discharged from the shower head S via the electromagnetic valve 27c which is in the open state by the ON signal, and the water pipe SH through the electromagnetic valve 27d which repeats opening and closing by the periodic ON / OFF signal. The sum of the amount of water soaked is equal to the flow rate of the mixed hot water passing through the merging flow path 23 and is unchanged.

As a result, the sum of the amount of water discharged from the shower head S and the amount of water discharged from the water pipe SH is constant, and the amount of water discharged from the water pipe SH periodically changes. Therefore, the water discharged from the shower head S becomes water discharged with a periodically changing water discharge amount under the influence of a periodic change in the water flow amount from the water pipe SH. Therefore, according to the water discharge device 1 of the present embodiment, even if the water discharge amount from the shower head S is periodically changed, the flow amount of the hot water from the inflow pipe 5 does not suddenly change. It is possible to avoid an unexpected situation such as a misfire of the water heater caused by a sudden change in the inflow amount in Step 5.

Further, in the water discharging apparatus 1 of the present embodiment, when the amount of water from the soot water pipe SH for periodically changing the amount of water discharged from the shower head S is periodically changed, the cycle is changed. It is configured to select from short cycle, middle cycle and large cycle according to the cycle setting button. In other words, as shown in the timing chart of FIG. 9, while the water is being continuously discharged from the shower head S at the set water discharge amount, the water discharge amount short cycle setting button 66 is pressed, and the shower head S in the short cycle is pressed. If the change in the water discharge amount is desired, the opening and closing of the solenoid valve 27d by the ON / OFF signal is repeated in this short cycle from that point, and the water discharge amount from the shower head S is changed in a short cycle as shown in the figure. Further, if it is desired to change the amount of water discharged from the shower head S in the middle period and the large period by the middle period setting button 67 and the large period setting button 68, the water discharge from the shower head S is started from those times. The amount of water is changed in a middle cycle or a large cycle. Therefore, according to the water discharge device 1 of the present embodiment, the added value can be improved through diversification of the cycle of changing the amount of water discharged from the shower head S.

In addition, when the amount of water discharged from the shower head S is periodically changed as described above, it is not necessary to adjust the flow rates of the water inflow pipe 3 and the hot water inflow pipe 5 by the flow control valves 15 and 17. The amount of water discharged from the shower head S can be changed periodically while the temperature of the mixed hot water determined by the respective temperatures of water and hot water and the mixing ratio thereof is kept constant. As a result, the user who bathes in the shower head S with the water discharged from the shower head S in which the water discharge amount periodically does not feel uncomfortable due to the change in the water discharge temperature. That is, the usability can be improved.

Further, since a periodic change in the amount of water discharged can be performed in any of the water discharge forms of straight, foam, and mist, the added value and the usability can be improved.

Further, according to the water discharge device 1 of this embodiment, the following effects can be obtained. In the case of changing from the singing, the straight, the foam, and the mist to the water discharge of another water discharge form, the water discharge switching section 27 is controlled prior to the drive control of the rotary water discharge body 80 for changing the water discharge form, and the mixed hot and cold water is controlled. Is switched to a water discharge destination other than the shower head S (either the wash basin AK or the bath basin BK). That is, before driving the rotary water discharger 80 to change the water discharge form, the mixed hot water that has been discharged from the shower head S up to that time is washed by the washing area Karan AK or the bath curan BK.
Water from one of the

When the drive control of the rotary water discharge body 80 for changing the water discharge form is completed, the water discharge switching section 27 is controlled to switch the water discharge destination of the mixed hot water to the shower head S.
Thus, the mixed hot and cold water is discharged from the shower head S in the changed water discharge mode.

Therefore, while the rotary water discharger 80 is being driven, the discharge of the mixed hot water from the shower head S is interrupted, and the mixed hot water is discharged from the other water outlets. As a result, according to the water discharger 1 of the present embodiment, the rotary water discharger 80 can be driven under a low load state in which the mixed hot water does not flow, and the flow control valve 15 and the flow control valve 17 can be fully closed. Since it is not necessary to control the return to the original state, it is possible to change the discharge form of the mixed hot water from the shower head S in a short time. In addition, it is possible to reduce the size of the shower head S and improve the usability thereof by reducing the size of the motor 77 that is the driving source of the rotary water discharger 80.

In order to change the form of water discharge, the rotary water discharge body 8
Since the start of water discharge from the water discharge destinations other than the shower head S and the interruption of the water discharge from the shower head S were sequentially executed in this order at the time of switching the water discharge destination before driving the water heater 0, The flow control valve 17 in the hot water inflow pipe 5 does not perform flow control (zero flow) for a sudden change in the control amount. Therefore, safety can be improved without fear of misfire of the water heater.

Although one embodiment of the present invention has been described above, the present invention is not limited to such an embodiment, and may be implemented in various modes without departing from the gist of the present invention. Of course.

For example, in the above embodiment, in order to periodically change the amount of water discharged from the shower head S, the amount of water discharged from the all-water pipe SH is periodically changed. The water outlet that is periodically changed may be the bath currant BK or the shower head S itself. If the water outlet for periodically changing the water discharge amount is the bath currant BK, so-called hot water filling can be performed in the bathtub while the water discharge amount from the shower head S is periodically changed.

[0069]

As described in detail above, the water discharge device according to the present invention is capable of changing the water discharge amount periodically while water is being discharged from the water discharge amount variable water discharge port where it is desired to change the water discharge amount periodically. If it is necessary to change the water quality, water is discharged from the other water outlets in addition to the water discharged from the variable water discharge amount water outlet. At this time, water is discharged from any of the water outlets other than the variable water outlet or the variable water outlet, while periodically changing the water discharge amount.

As a result, according to the water discharger of the present invention, even if the water discharge amount from the water discharge amount variable water discharge port is periodically changed,
Since it is not necessary to change the total supply amount of the fluid supplied from the fluid supply source to the variable water discharge port and the other water discharge ports in accordance with the above cycle, it is possible to avoid inconvenience caused by a sudden change in the water discharge amount. Can be.

Further, the variable water discharge amount water outlet is a shower head provided in the bathroom, and the water discharge ports other than the variable water discharge amount water discharge port are drainage pipes whose discharge destination discharges the drainage in the bathroom to the outside of the room. A misfire caused by a sudden change in the total amount of water discharged from the water heater when the water discharge from the shower head is periodically changed by using a certain water outlet or a water outlet other than the shower head in the bathroom. Can be avoided beforehand. In particular, if a water outlet other than the variable water discharge amount water outlet is a bathtub cull, it is possible to fill the inside of the bathtub with water from the shower head whose water discharge amount is periodically changed while being showered.

[Brief description of the drawings]

FIG. 1 is an external view of a bathroom when a water discharge device 1 is applied to a bathroom hot water supply system.

FIG. 2 is a block diagram used to explain an electrical configuration of the water discharge device 1 and each device configuration.

FIG. 3 is an explanatory diagram for explaining an operation panel P attached to the shower tower ST.

FIG. 4 is a schematic sectional view for explaining a configuration of the shower head S.

FIG. 5 is a flowchart illustrating a first half of a water discharge routine performed by the water discharge device 1.

FIG. 6 is a flowchart illustrating a second half of a water discharge routine performed by the water discharge device 1.

FIG. 7 is a flowchart showing a part of the latter half of the water discharge routine.

FIG. 8 is a flowchart showing a water discharge mode changing routine performed by the water discharge device 1.

FIG. 9 is an explanatory diagram for explaining an effect of the water discharging device 1.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Water discharger 3 ... Inflow pipe 5 ... Inflow pipe 15 ... Flow control valve 17 ... Flow control valve 19 ... Actuator 21 ... Actuator 23 ... Confluence flow path 27 ... Water discharge switching part 66 ... Water discharge short cycle setting button 67 ... Water discharge Medium cycle setting button 68 ... Water discharge amount large cycle setting button 27a ... Electromagnetic valve 27b ... Electromagnetic valve 27c ... Electromagnetic valve 27d ... Electromagnetic valve 72a ... Thick part AK ... Washing area BK ... Bascalan P ... Operation panel S ... Shower head SS ... Electronic control unit SH: water pipe UM: hot water mixer tap

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F24D 17/00

Claims (3)

(57) [Claims] 1. A water discharge amount variable water outlet that is desired to change the water discharge amount periodically and another water outlet are provided, and a fluid supplied from a fluid supply source is discharged from one of the water outlets. A water spouting device, wherein, during spouting from the water spouting variable water spout, water spouting is performed from water spouts other than the water spouting variable water spout in addition to the water spouting from the water spouting variable water spout. Means, when the plurality of water outlets water discharge execution means has been discharging water from the water discharge amount variable water discharge port and other water discharge ports,
A water discharge device comprising: a water discharge amount changing unit configured to periodically change a water discharge amount from one of the water discharge amount variable water discharge port and another water discharge port. 2. The water discharge device according to claim 1, wherein the variable water discharge amount water outlet is a shower head provided in a bathroom, and water discharge ports other than the variable water discharge amount water discharge port are provided in the bathroom. A water spouting device that is a water spout having a drainage pipe for discharging drainage outside the room. 3. The water discharge device according to claim 1, wherein the variable water discharge amount is a shower head provided in a bathroom, and the water discharge ports other than the variable water discharge amount are the shower head. In addition, a spouting device that is a spout provided in the bathroom.