JP2565575Y2 - Shower equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shower device, and more particularly to a shower device for electrically controlling the start and stop of shower discharge.

[0002]

2. Description of the Related Art A shower apparatus of this type generally opens a solenoid valve provided in the middle of a flow path connecting a hot water supply source and a water supply source to a shower water discharge port through a mixing tap by opening a switch to operate a shower. Start, the OFF operation or the lapse of a predetermined time or the completion of the predetermined water discharge mode, the valve is closed and the shower is stopped, and a wax type thermostat mixing valve is used as a mixing tap, and thermal expansion of the wax is performed. The hot water side of the hot water mixing valve due to shrinkage,
The opening ratio on the water side is variably adjusted.

[0003]

As described above, the conventional shower apparatus uses a wax-type thermostat mixing valve as a mixing tap, and as a characteristic thereof, hot water due to overshoot at the time of re-discharge after stopping water. Discharge risk. That is, when the supply of hot water from the hot water supply source is stopped and the temperature in the mixing chamber accommodating the temperature sensor is lowered due to the shower water stoppage, the wax shrinks and the opening of the mixing valve on the hot side of the mixing valve is stopped. When the shower water is restarted before the hot water in the hot water supply pipe has cooled down in this state, the temperature of the mixing valve becomes high immediately after the restart of water discharge based on the opening ratio of the mixing valve. There is a risk of hot water being discharged. The present invention has been made in view of the above-mentioned problems of the prior art, and an object thereof is to provide a stop device in a shower device using a wax-type thermostatic mixing valve as a mixing tap due to the characteristics of the wax-type thermostatic mixing valve. An object of the present invention is to prevent the discharge of hot water due to overshoot during re-discharge after water.

[0004]

In order to achieve the above object, in the shower apparatus of the present invention, hot water from a hot water supply source and water supply are provided.
A mixing section for mixing the water from the source, and a mixing section,
Mixing ratio of hot and cold water by deforming according to the temperature of mixed hot water
Mixing valve to change the rate and shower outlet downstream of the mixing valve
And a command to start / stop water discharge from the shower water outlet.
A shower device comprising a switch and a mixing valve;
Branches from between the shower outlets,
A waste water drain pipe that guides the mixed hot water to the spout, and a shower spout
After the stoppage of water discharge from the water until the start of water discharge is instructed
When the interval is within a predetermined time, water is discharged from the shower water outlet.
Without discharging the mixed hot water through the waste water drain pipe.
Control means is provided.

[0005]

In the shower apparatus configured as described above, when the signal generation of the shower water discharge start instruction by the switch is generated after a lapse of a predetermined time from the previous signal generation of the shower water discharge stop instruction signal , Immediately after the shower water discharge, if the instruction is within a predetermined time after the generation of the water discharge stop instruction signal , the mixed water is first discarded for a predetermined time, and then
After that, perform shower spouting.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. The shower device of the present embodiment is installed so as to fit into the side wall of the unit bathroom, and as shown in FIG. 2, a plurality of types of shower water outlets 2 are provided at required portions of a vertically long main body panel 1. It is composed.

In the case of this embodiment, the shower water outlet 2 is a shower shower 2a, a spray shower 2b, a micro shower 2c, a body shower 2d, and a hand shower 2e.
And the above shower 2a, spray shower 2
b, The micro shower 2c constitutes an overhead shower by gathering water outlets in an overhanging portion 1a formed in an overhanging manner on the upper part of the main body panel 1 and facing obliquely downward. The body shower 2d is provided as a pair at the center of the main body panel 1 and the hand shower 2e is detachably engaged with a hanger 4 which is vertically slidably mounted on a slide bar 3 at the center of the main body panel 1. I have. In addition, this shower device is provided with a curan 6 on a rising surface of a counter 5 provided below the main body panel 1.

A piping system constituting a flow path for supplying hot water to the shower water outlet 2 and the curran 6 is provided along the back surface of the main body panel 1. As shown in FIG. 3, the piping system mixes hot water supplied from a hot water supply source such as a water heater via a hot water supply pipe 7 with water supplied from a water supply source such as a water pipe via a water supply pipe 8. 9 and the mixture is adjusted to a desired temperature by the mixing tap 9 and each of the shower water outlets 2a, 2b, 2 is adjusted.
It is configured to supply c, 2d, 2e and curran 6.

The mixing tap 9 is provided with a wax-type thermosensor (not shown) and a hot-water mixing valve (FIG. 1) which is operated by thermal expansion and contraction of the wax of the thermosensor to change the opening ratio between the hot water side and the water side. (Not shown), and the temperature of the temperature sensor can be set by operating the handle 10 from the front side of the main body panel 1 to set the temperature of the mixed water.

The secondary side of the mixing tap and each shower outlet 2
a, 2b, 2c, 2d, 2e and the mixed water pipe 11 communicating the curan 6 are provided with shower water outlets 2a, 2b, 2c, 2 respectively.
d, 2e and water discharge solenoid valves 12 (12
a, 12b, 12c, 12d, 12e, 12f) are provided, and the start and stop of water discharge from each shower water discharge port 2 and the curran 6 are controlled by opening and closing the corresponding water discharge electromagnetic valve 12. At the same time, a manual flow control valve 13 is provided upstream of each water discharge solenoid valve 12 so that the discharge flow rate of each shower water discharge port 2 and the curan 6 can be arbitrarily adjusted by operating the handle 14 from the surface of the main body panel 1. It has become.

The mixed water pipe 11 is disposed between the water discharge solenoid valve 12 located at the most upstream side of the water discharge solenoid valve 12f and the flow control valve 13 through the discard water solenoid valve 15. A water drain pipe 16 branches off, and the waste water drain pipe 16 communicates with a waste water drain port 17 provided on the rising surface of the counter 5.

Each of the water discharge solenoid valves 12 opens and closes based on the generation timing of a start timing signal from the shower start means described later and closes the valve based on the generation of a stop timing signal from the shower stop means.
Each is controlled in discarded water solenoid valve 15 is a valve opening based on the generation timing of the start timing signal from the shower start means, the valve closing are respectively the control unit 20 controlled by the later-described T ₂ timer.

The shower start means 18 includes start switches 18a, 18b, 18c, which are provided in correspondence with the shower water outlets 2a, 2b, 2c, 2d, 2e and the curan 6, respectively.
18d, 18e, 18f, each start switch 18a,
Each of 18b, 18c, 18d, 18e, and 18f generates a start timing signal by the pressing operation. Further, a stop switch 19a Shower stop means 19 corresponding to all of the shower water discharge ports 2 and Curran 6 with 1, consists of T ₃ timer, stop switch 19a is a stop timing signal generated by the pressing operation, T ₃ The timer 19b generates a stop timing signal by the time-up.

Each of the start switches 18a, 18b, 18c, 18d, 18e, 18f constituting the shower start means 18
A stop switch 19 a constituting one of the shower stop means 19 is provided on the operation panel 30 and is provided on the main body panel 1 and the callan 6.

The control unit 20 for controlling the opening and closing of the water discharge electromagnetic valve 12 and the waste water electromagnetic valve 15 is composed of a microcomputer, and is basically composed of a central processing unit (CPU) 20a and input / output interfaces 20b and 20c. And a memory 20d, which are arranged at appropriate locations on the main body panel. Switches constituting the shower start means 18 and the shower stop means are connected to the input interface 20b.
₁ timer 21, T ₂ three timer connected to the timer 22, T ₃ timer 19b, the water spouting solenoid valve 12 to the output interface 20c (12a, 12b, 12c, 12d, 12e, 12f) and discarded electromagnetic for water The valves 15 are connected to each other, and a program for controlling the solenoid valves 12 and 15 is stored in a memory 20a.

The reset the T ₁ timer 21 is configured to be reset by the start and the start timing signal generated by the stop timing signal generator, T ₂ timer 22 a star by the generation of the start signal by timeout of the predetermined T ₂ hours It is configured to be. Furthermore, T ₃ timer 19b intended to constitute one shower stop means 19 is reset by the occurrence of the stop timing signal from the time-up or stop switch 19a of the start ₃ hours predetermined T by the generation of start timing signal It is configured to generate a stop timing signal by the time-up of T ₃ hours with.

On the other hand, the program stored in the memory 20a is as shown in the flowchart of FIG. 4. One of the start switches 18 of the operation panel 30, for example, the start switch 18d for the body shower is pressed, and the switch 18d is turned on. When start timing signal is generated, first, whether the start timing signal based on the time data from the T ₁ timer 21 is generated after the lapse of a predetermined time T ₁ from generation of the stop timing signal of the previous showers, passed Determine if it is the previous occurrence.

Next, when the start timing signal is T ₁
If it is after the passage of time, the corresponding water discharge solenoid valve
12d generates a valve opening output to start the T ₃ timer 19b as well as open it to. Thus, water discharge from the body shower water discharge port 2d starts. Then, then the stop timing signal stop switch 19a is operated to generate disappears the valve opening output to the electromagnetic valve 12d for the water discharge, to stop the water discharge shower 2d are closed this time T ₁ timer 21 Start.

Further, even without the strike-flop switch 19a is operated, as in the case where the T ₃ timer 19b is timed strike flop switch 19a is operated to generate a stop timing signal to the electromagnetic valve 12d for spouting This was closed to extinguish the open output, and to stop the water discharge of the shower 2d to start the T ₁ timer 21 at the same time.

On the other hand, when the start timing signal is T ₁
When was occurred before lapse of time, it starts a T ₂ timer 22, to open the water solenoid valve 15 discarded simultaneously. As a result, the hot water in the mixed water pipe 11 passes through the waste water drain pipe 16 and from the waste water drain port 17 to the washing area in the unit bathroom.
In the meantime, the mixed water in the mixing chamber of the mixing tap 9 is replaced by the mixed water having a lowered temperature into a high-temperature mixed water, and the wax which has shrunk accordingly expands and is mixed with the hot water of the mixing valve. The opening decreases and the opening ratio returns to the predetermined opening ratio.

[0021] Then, the T ₂ by stopping the opened output to the electromagnetic water valve 15 discarded by timeout of the timer 22 is closed it, which generates a valve opening output to the electromagnetic valve 12d for simultaneously jetting water Is opened. Therefore, high-temperature hot water is not suddenly discharged from the shower water outlet 2d, and hot water at the set temperature is discharged from the beginning. FIG. 5 shows a time chart of such control.

In the above description, the wastewater drainage port 17 is opened on the rising surface of the counter 5 at the lower part of the main body panel 1, and the wastewater drainage pipe 16 is connected to this drainage port 17. It may be connected to the callan 6.

Incidentally, in FIG. 3, reference numeral 24 denotes a solenoid valve for discarding the cooled water in the hot water supply pipe 7 at the time of starting the operation of the shower device and at the time of water discharge after a long time has elapsed from the previous shower water discharge. And the thermistor 25 installed in the hot water supply pipe 7.
The opening and closing of the hot water supply pipe 7 is controlled by the control unit 20 based on the detected water temperature in the hot water supply pipe 7. However, since the control is not related to the gist of the present invention, the description is omitted.
26 is a check valve, 27 is a strainer, and 28 is a stopcock.

In the embodiment described above, the stop switch 19a is provided separately from the start switch 18 (18a, 18b, 18c, 18d, 18e, 18f). The switch 18 and the stop switch 19a may be shared.

Furthermore, T ₃ timer 19b in the shower water discharge
If another start switch is pressed before the time is up, the water discharge solenoid valve corresponding to the newly pressed start switch opens instead of the water discharge solenoid valve that was open at that time. Alternatively, a start switch for the automatic mode may be provided, and the operation of the switch may cause each of the water discharge solenoid valves to be opened in a predetermined order for a predetermined time.

[0026]

[Effect] Since the present invention is configured as described above, the following effects can be obtained. (1). Shutter generated by operation of the start switch, etc.
Signal of the word water discharge start instruction, the last shower stop instruction of
When the signal is generated within a predetermined time after the signal is generated, that is, when the current use of the shower is within a predetermined time after the end of the previous shower use, first, the mixed hot water is discarded for a predetermined time.
Since the shower water is discharged after that, it is possible to prevent the hot water from being discharged due to overshoot at the time of re-discharge after water stoppage due to the characteristics of the wax type thermostat mixing valve, and there is no danger of burns or the like.

[Brief description of the drawings]

FIG. 1 is a functional block diagram of an embodiment of the present invention .

FIG. 2 is a perspective view showing an installation state of the shower device according to the embodiment of the present invention;

FIG. 3 is a block diagram schematically showing the overall configuration of the shower device of the present invention.

FIG. 4 is a flowchart showing control.

FIG. 5 is a time chart showing operation timing.

[Explanation of symbols]

2 Shower spout 9 Mixing tap 11 Mixing water pipe (flow path) 12 Solenoid valve for spouting water 15 Solenoid valve for waste water 16 Waste water drain pipe 18 Shower start means 19 Shower stop means 20 Control unit 21 T ₁ timer 22 T ₂ timer

Claims (1)

(57) [Scope of request for utility model registration] 1. Mixing hot water from a hot water supply source with water from a hot water supply source
To be mixed and to be deformed according to the temperature of the mixed hot water installed in the mixing section
Valve that changes the mixing ratio of hot and cold water, a shower water outlet downstream of the mixing valve, and a switch that instructs start / stop of water discharge from the shower water outlet.
In the shower device including a switch, a branch from between the mixing valve and the shower spout, shower water discharge
There is a waste water drain pipe that guides the mixed hot water to a spout other than the spout, and an instruction to start spouting after the spout from the shower spout.
If the elapsed time until the shower
Without discharging water from the water outlet, through the waste water drain pipe
A shower device provided with control means for discharging mixed hot water .