JP2001046262A - Hot water/water supply device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hot water/water supply device capable of discharging high-temperature supplied water from a faucet while preventing high-temperature supplied water from being discharged from a shower. SOLUTION: A hot water/water supply device with a supply pipe 4 to which a hot water supply pipe 2 and water supply pipe 3 are connected, a faucet and shower arranged at a terminal of the supply pipe 4, and solenoid valves 11k and 11s arranged on the upstream side of the faucet and shower is provided with both a temperature detecting means 5 to detect the temperature of supplied water at the supply pipe 4 and a controller 21 to perform control in such a way as to close the solenoid valve 11s during the discharge of supplied water from the shower and to maintain the opening of the solenoid valve 11k during the discharge of supplied water from the faucet in the case that the temperature of supplied water becomes equal to a preset temperature or higher.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water supply apparatus for discharging supply water from a shower or a curran.

[0002]

2. Description of the Related Art Conventionally, hot water and water supplied from a hot water supply pipe and a water supply pipe are mixed or selected.
A hot water supply device that discharges supply water at a desired temperature from a shower or a curran is used. In the conventional hot water supply apparatus, when the temperature of the supply water is incorrectly set or when the temperature of the hot water supplied from the hot water supply pipe becomes extremely high due to some abnormality, the high temperature supply water is supplied from the shower and the curan. In order to prevent ejection, some devices are provided with a temperature detecting means such as a thermistor, an electromagnetic valve, and a controller for controlling the electromagnetic valve.

In this hot and cold water supply device, when the temperature detecting means detects that the temperature of the supplied water has become high, the solenoid valve is closed under the control of a controller, and the high temperature is supplied from both the shower and the curan. Supply water is not discharged. Thereby, the high-temperature supply water is not unexpectedly discharged, and it is possible to prevent a bather from touching the high-temperature supply water.

[0004]

However, in the above-mentioned prior art, when the temperature detecting means detects that the supply water is high, the high-temperature supply water is not discharged from both the shower and the curan. The hot water cannot be discharged from the curan. There is a case where it is desired to discharge high-temperature supply water from the curan depending on the use condition. However, the conventional hot water supply device cannot do so, so that there is a problem that the usability is poor.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to prevent hot water from being discharged from a shower while discharging hot water from a curan. It is to provide a hot and cold water supply device capable of performing the above.

[0006]

In order to achieve the above object, in a hot water supply apparatus of the present invention, a supply pipe connected to a hot water supply pipe and a water supply pipe and an end of the supply pipe are provided. In a hot and cold water supply device having a callan and a shower, an electromagnetic valve provided on the upstream side of the callan and the shower, and a temperature detection means for detecting a temperature of supply water provided in the supply pipe, the temperature detection means supplies When it is detected that the temperature of the water has become equal to or higher than a preset temperature, the electromagnetic valve is closed while the supply water is being discharged from the shower, and the electromagnetic valve is kept open while the supply water is being discharged from the curran. Is provided with a controller.

In this hot water supply device, when high-temperature supply water flows into the supply pipe during use of the shower, the temperature detecting means detects this, the solenoid valve is closed, and the high-temperature supply water flows from the shower. No discharge occurs. Thus, it is possible to prevent the bather from bathing in the high-temperature supply water. On the other hand, when high-temperature supply water flows into the supply pipe while supply water is being discharged from the callan, the solenoid valve is kept open even if the temperature detection means detects this, so that the , High-temperature supply water is discharged. Thereby, when necessary, high-temperature supply water can be discharged from the curan, so that high-temperature supply water can be easily used in the bathroom.

It is also preferable to provide a notifying means for notifying when the temperature of the supply water has become equal to or higher than a preset temperature while the supply water is being discharged from the currant. .

[0009] It is difficult to perceive the temperature of the supply water without contacting it, but in this hot water supply device, when hot supply water is discharged from the curan, it is given to the bather. Since the notification is given, the bather can easily know that hot water is being discharged from the caran.

Further, it is preferable that the notifying means is either a buzzer or a light emitting element, or both a buzzer and a light emitting element.

In this hot water supply apparatus, the buzzer and / or the light emitting element notify that hot water is being discharged from the caran, so that the bather contacts the hot water mixing apparatus. Without this, it can be perceived by one or both of hearing and vision.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS.

The hot water supply apparatus 1 of this embodiment includes a supply pipe 4 to which a hot water supply pipe 2 and a water supply pipe 3 are connected, a callan and a shower provided at an end of the supply pipe 4, and an upstream of the callan and the shower. Solenoid valves 11k, 11s provided on the side
And temperature detection means 5 for detecting the temperature of the supply water provided in the supply pipe 4, wherein the temperature detection means 5 has detected that the temperature of the supply water has become equal to or higher than a preset temperature. When detecting the water supply, a controller 21 is provided to control the electromagnetic valve 11s to be closed while the supply water is being discharged from the shower and to keep the electromagnetic valve 11k open while the supply water is being discharged from the curran. And

The hot water supply pipe 2 and the water supply pipe 3 communicate with a hot water supply and a water supply, respectively. Further, the hot water supply pipe 2 and the water supply pipe 3 respectively have a hot water supply pipe solenoid valve 12h and a water supply pipe solenoid valve 12 respectively.
c is attached. The hot water supply pipe solenoid valve 12h or the water supply pipe solenoid valve 12c shuts off hot water or water flowing in the hot water supply pipe 2 or the water supply pipe 3, and is connected to the controller 21 and controlled by the controller 21. These solenoid valves 12h and 12c switch the supply water supplied to the downstream supply pipe 4 to hot water or water. When the hot water supply pipe solenoid valve 12h is opened, the water supply pipe solenoid valve 12c is closed. Conversely, when the water supply pipe solenoid valve 12c is opened, control is performed so as to close the hot water supply pipe solenoid valve 12h.

Hot water supply pipe 2 and water supply pipe 3 are connected to solenoid valves 12h, 1
It joins on the downstream side of 2c and is connected to the supply pipe 4, and the supply pipe 4 is provided with a temperature detecting means 5 composed of a thermistor or the like.

The temperature detecting means 5 detects the temperature of the supply water flowing through the supply pipe 4 and is connected to the controller 21. The controller 21 monitors a change in the resistance value of the thermistor included in the temperature detection means 5 at a constant cycle, and detects that the temperature of the supply water has become equal to or higher than a certain value. Here, the temperature to be detected is set to 50 degrees, and when it is 50 degrees or more, the supply water is determined to be high temperature. In the detailed description of the invention in this specification, the term “high temperature” refers to a temperature of 50 ° C. or more detected by this. However, this temperature may be appropriately changed in consideration of a use situation.

As shown in FIG. 1, a flow rate adjusting solenoid valve 13 is provided downstream of the temperature detecting means 5 of the supply pipe 4. This adjusts the flow rate of the supply water flowing in the supply pipe 4 and is connected to the controller 21. The flow rate of the supply water in the supply pipe 4 can be switched between two stages by the flow rate control electromagnetic valve 13.

The supply pipe 4 is branched into two at the downstream side of the flow rate control solenoid valve 13, and a shower solenoid valve 11 s and a curan solenoid valve 11 k are respectively provided in the middle, and a shower head is provided at each end. Or a curan is attached. These electromagnetic valves 11 s and 11 k are for shutting off the supply water in the supply pipe 4 on the shower side and the caran side, and are connected to and controlled by the controller 21.

The solenoid valves 11s and 11k switch between a shower and a curan as a destination for discharging the supply water. When discharging the supply water from the shower,
The shower solenoid valve 11s is opened, and the Karan solenoid valve 11k is closed. Conversely, when discharging supply water from the curan,
The shower solenoid valve 11s is closed, and the Karan solenoid valve 11k is opened. The solenoid valves 11s and 11k are connected to the controller 2 in this manner.
The control unit 1 controls the operation unit 22 to select the side from which the supply water is to be discharged.

The controller 21 is composed of a microcomputer and is controlled by a control program. The operation unit 22 includes, as shown in FIG.
Hot water selector switch 24 interlocked with water supply pipe solenoid valve 12c
And a water discharge amount changeover switch 27 interlocked with the flow rate adjusting electromagnetic valve 13, a callan selection switch 30 for selecting a side for discharging the supply water and stopping the water discharge, a stop switch 31, and a shower selection switch 32. This operation unit 2
2 is installed on the wall of the bathroom such as near Kallang.

Each time the hot water switch 24 is pressed, the hot water and the water are switched as the supply water supplied to the supply pipe 4. That is, when the hot water is selected, the hot water supply pipe solenoid valve 12h is opened and the water supply pipe solenoid valve 12c is closed. Then, the water supply pipe solenoid valve 12c is opened, and water is supplied to the supply pipe 4.

Further, above the hot and cold water changeover switch 24,
There are provided "hot water" and "water", and light emitting elements 25a and 25b located above them. When hot water is selected, the light emitting element 25a above it is turned on, and conversely, water is selected. When the light emitting element 25b is turned on, the light emitting element 25b thereon is lit.

On the other hand, each time the water discharge amount changeover switch 27 is pressed, the magnitude of the water discharge amount can be switched.
There are provided "strong" and "weak" indications and light emitting elements 27a and 27b located above them, so that the light emitting element 27 on the selected side is turned on to display the selected water discharge amount. It has become.

The callan selection switch 30 and the shower selection switch 32 are used to switch between the callan and the shower as the discharge destination of the supply water.
When 0 is pressed, the curan is selected, the curan electromagnetic valve 11k is opened, the supply water is discharged from the curan, the shower electromagnetic valve 11s is closed, and the discharge of the supply water from the shower is stopped. On the contrary, when the shower selection switch 32 is pressed, the shower is selected, the shower electromagnetic valve 11s is opened, and the supply water is discharged from the shower, and the callan electromagnetic valve 11k is closed to stop the discharge of the supply water from the callan.

The callan selection switch 30 and the shower selection switch 32 have light transmitting portions 30a and 32a imitating the shape of the callan and the shape of the shower head, respectively, on the surface thereof. When selected, the light emitting elements 30b and 32b provided on the back side of the translucent portions 30a and 32a are turned on to indicate that each is selected.

Further, the light emitting element 30b of the translucent portion 30a provided in the callan selection switch 30 is used when the temperature detection means 5 detects that the supply water is high when the callan is selected. This blinks and also acts as a notifying means for notifying that the supply water is hot. The light emitting element 30b is constituted by an LED or the like, and repeatedly blinks for 0.5 seconds and turns off for 0.5 seconds.

On the other hand, when the shower is selected,
When the temperature detection means 5 detects that the supply water is high, the shower electromagnetic valve 11s closes and the discharge of the supply water from the shower is stopped. Light emitting element 32b in section 32a
Flashes to indicate that the supply water is at a high temperature and the supply of the supply water from the shower is stopped.

When the temperature detecting means 5 detects that the temperature of the supplied water is high, a buzzer (not shown) built in the operation unit 22 sounds and informs the bather of this. I do.

Here, the operation of the hot and cold water supply apparatus 1 of the present embodiment will be described. When using hot water, a desired hot water temperature is set in advance with a water heater. As a result, hot water at that temperature is supplied to the hot water supply pipe 2. Next, the operation unit 2
The hot water selection switch 24 is used to select hot water. With this operation, the hot water supply pipe solenoid valve 12h is opened, and the water supply pipe solenoid valve 12h is opened.
c, the hot water is supplied to the supply pipe 4 as supply water. Subsequently, the water discharge amount switch 27 selects the water discharge amount.

Further, by pressing the callan selection switch 30 or the shower selection switch 32, the discharge destination of the supply water is selected. At this time, when the curan is selected, the curan electromagnetic valve 11k is opened, the shower electromagnetic valve 11s is closed, hot water is discharged from the curan, and the light-emitting element 30b of the curan selection switch 30 is turned on to select curan. To show that On the other hand, when the shower is selected, the shower solenoid valve 11s opens, and the Karan solenoid valve 1 is opened.
1k is closed and hot water is discharged from the shower,
The light emitting element 32b of the shower selection switch 32 lights up to indicate that the shower is selected.

To stop the supply of water, the stop switch 31 is pressed. At this time, both the shower electromagnetic valve 11s and the curan electromagnetic valve 11k are in a closed state, and both the hot water supply pipe electromagnetic valve 12h and the water supply pipe electromagnetic valve 12c are in a closed state, so that the discharge of the supply water is stopped.

Next, a case where hot water is supplied from a water heater will be described. When hot water is supplied while the hot water switch 24 is selected, the hot water is supplied to the supply pipe 4 and detected by the temperature detecting means 5.

In this case, the shower selection switch 32
When the shower is selected, the open shower solenoid valve 11s is closed, and the hot water supply pipe solenoid valve 1s is closed.
Also close for 2 hours to prevent hot water from being discharged from the shower. At this time, the shower selection switch 32
The light emitting element 32b provided in the light transmitting portion 32a blinks, and a buzzer in the operation unit 22 sounds to notify the bather. Accordingly, the bather can safely take a bath without receiving high-temperature supply water from the shower, and the bather can be notified of it, so that the bather can easily perceive it.

When the callan is selected by the callan selection switch 30, the open callan solenoid valve 1 is opened.
1k is not closed and is kept open, and hot water is discharged from the curan. At this time, the light emitting element 3 provided in the light transmitting portion 30a of the callan selection switch 30
0b flashes, and a buzzer in the operation unit 22 sounds to notify the bather. Thereby, the bather can use the high-temperature supply water discharged from the curan and furthermore, it is notified by the notification means including the light emitting element 32b and the buzzer, so that the bather easily perceives this. This can prevent accidental contact with hot supply water.

In this embodiment, the temperature detecting means 5
However, when it is detected that the supply water is at a high temperature, the light emitting elements 30b and 32b of the callan selection switch 30 or the shower selection switch 32 blink, and the buzzer sounds at the same time, but either one of them may be used.

Next, a second embodiment of the present invention will be described.
Based on FIGS. 3 and 4, a description will be given focusing on differences from the first embodiment.

In this embodiment, instead of the hot water supply pipe solenoid valve 12h and the water supply pipe solenoid valve 12c of the first embodiment,
A thermomixing valve 14 is provided. The thermo-mixing valve 14 mixes the hot water from the hot-water supply pipe 2 and the water from the hot-water supply pipe 3 so as to reach a temperature set by a bather by a mechanical operation using expansion of the thermowax. .

Accordingly, a temperature control dial 26 is provided in place of the hot / cold selector switch 24 of the operation unit 22, and the operation of the thermo mixing valve 14 is adjusted so that the temperature set by the temperature control dial 26 is maintained. Hot water and water are mixed.

In the hot water supply apparatus of the present embodiment,
Since the temperature is adjusted by the thermo-mixing valve 14, the temperature of the hot water supplied from the water heater is set high, and the temperature is adjusted by the temperature adjusting dial 26. Other operations are the same as those in the first embodiment.

In this embodiment, since the temperature detecting means 5 is provided on the downstream side of the thermo-mixing valve 14, the temperature of the supply water is increased by the temperature adjusting dial 26 due to an operation error or mischief. Can be detected by the temperature detecting means 5 even when the temperature is set to, and high-temperature supply water is not discharged from the shower as in the above embodiment. On the other hand, high-temperature supply water can be discharged from the curan, but even in this case, this is notified by the notification means, so that the bather can be prevented from accidentally contacting the high-temperature supply water.

[0041]

The hot and cold water supply apparatus of the present invention is as described above. According to the first aspect of the present invention, it is possible to prevent a bather from bathing in high-temperature supply water beforehand, and to prevent the bather from receiving hot water. Can discharge high-temperature supply water, so that high-temperature supply water can be easily used in the bathroom, and usability is improved.

According to the second aspect of the present invention, a bather can easily know that hot water is being discharged from the caran, and can prevent accidental contact with the hot water. it can.

According to the third aspect of the invention, since one or both of the buzzer and the light emitting element informs that hot water is being discharged from the curan, the bather comes into contact with the hot and cold water mixing device. Without this, it can be perceived by one or both of hearing and vision.

[Brief description of the drawings]

FIG. 1 is a block diagram of a hot water supply device according to a first embodiment of the present invention.

FIG. 2 is a front view showing an operation unit of the hot and cold water supply device.

FIG. 3 is a block diagram of a hot water supply device according to a second embodiment of the present invention.

FIG. 4 is a front view showing an operation unit of the hot water supply device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hot water supply apparatus 2 Hot water supply pipe 3 Water supply pipe 4 Supply pipe 5 Temperature detection means 11s Shower solenoid valve 11k Callan solenoid valve 21 Controller

Claims (3)

[Claims] 1. A supply pipe to which a hot water supply pipe and a water supply pipe are connected, a callan and a shower provided at an end of the supply pipe, an electromagnetic valve provided upstream of the callan and the shower, and a supply pipe. In a hot and cold water supply device provided with a temperature detecting means for detecting a temperature of supplied water, when the temperature detecting means detects that the temperature of the supplied water has become equal to or higher than a preset temperature, the supplied water is discharged from the shower. A hot water supply device, comprising: a controller that closes the solenoid valve during the operation and controls the solenoid valve to be kept open while the supply water is being discharged from the curran. 2. A notifying means for notifying when the temperature detecting means detects that the temperature of the supplied water has become equal to or higher than a preset temperature while discharging the supplied water from the curran. The hot and cold water supply device according to claim 1, wherein: 3. The hot and cold water supply device according to claim 2, wherein the notification means is one of a buzzer and a light emitting element, or both a buzzer and a light emitting element.