JP3130083B2 - Bath 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 bath apparatus for automatically supplying hot water to a bath.

[0002]

2. Description of the Related Art As shown in FIG. 3, a hot water supply port 2 of a hot water storage tank 1 is connected to a water supply source through a pressure reducing valve 3 and a heater is provided in the hot water storage tank 1 as shown in FIG. 4 is provided and is guided from a tap 5 to a mixing tap 7 to a bathtub 6, and the water side of the mixing tap 7 is connected to a water supply source.

In the electric water heater, the water in the hot water storage tank 1 is boiled by a heater 4 using electric power at midnight.
When filling the bathtub 6, the mixing tap 7 is adjusted to supply hot water at an appropriate temperature. When the temperature of the hot water is reduced to a suitable temperature after using the bath water, the mixing tap 7 is set at a high temperature and the hot water in the hot water storage tank 1 is poured into the bath 6 to raise the temperature of the hot water in the bath.

[0004]

In such a conventional bath apparatus, it is necessary to manually fill the bathtub 6 and adjust the temperature, which is inconvenient, and the hot water in the hot water tank 1 has run out. In such a case, since the bathtub hot water cannot be reheated, a bath kettle made of gas or the like dedicated to reheating must be separately installed, and there is a problem that extra equipment, installation space, and installation work are additionally required. In addition, when hot water in the bathtub is insufficient and high-temperature hot water is supplied, there is a problem that the high-temperature hot water hits a bathing person and becomes uncomfortable.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems. The present invention automates hot water filling and temperature control, is highly convenient, eliminates anxiety of running out of hot water, and is suitable for people who are bathing in high-temperature hot water at the time of high-temperature hot water. It is an object of the present invention to provide a comfortable bath apparatus that does not hit the bathroom.

[0006]

In order to achieve the above object, the present invention provides a reheating circuit comprising a reheating heater and a pump for heating bath water, and a hot water flow rate adjusting a hot water flow from the hot water storage tank. A valve and a water-side flow adjusting valve for adjusting a water flow rate; a pouring circuit connected to the reheating circuit from the two independently provided flow regulating valves via a pouring on / off valve; and the reheating circuit. place the temperature detector and the water level sensor, the automatic hot water supply, hot water temperature adjusting range set in advance
, The flow rate adjustment on the side that is fully opened according to the hot water temperature set value
Select the drain valve, fully open the selected flow control valve, and
By controlling one of the flow control valves,
The conditions for obtaining the maximum hot water supply flow rate are automatically set and the desired
Hot water is supplied at the maximum hot water flow while maintaining the hot water temperature.
In addition, at the time of high-temperature hot water, the water-side flow control valve is fully closed, and the opening of the hot-water flow control valve is lowered from fully open, so that the flow at the time of high-temperature hot water is smaller than the flow at the time of automatic hot water supply. A control device is provided to perform control as described above.

[0007]

According to the present invention, when automatic hot water supply is performed by the above configuration,
Is one of the two flow control valves determined according to the hot water temperature set value.
Fully open one of the flow control valves and control the other flow control valves
The temperature of the hot water from the hot water tank is adjusted to an appropriate temperature, the pouring on / off valve is opened, the hot water is poured into the bath tub at the maximum flow rate through the reheating circuit, the bath tub water level is detected by the water level sensor, and the filling is automatically stopped at the set water level. In addition, the pump is operated to circulate bathtub water and reheat the bathtub water by the reheating heater. The temperature of the bathtub is detected by the temperature detector of the reheating circuit, and the reheating is automatically stopped at the set temperature. When the hot water is hot, the flow rate on the water side is adjusted.
The valve is fully closed, and the hot water flow control valve is set to a high temperature with an opening smaller than the full opening. <br/> To the bathtub via the pouring on / off valve and the reheating circuit
Pour at a lower flow rate than at the time of automatic hot water supply and raise the temperature of the bath water.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG.

FIG. 1 is a configuration diagram of a bath apparatus according to one embodiment of the present invention. The pipe from the water supply source is connected to the water supply port 2 and the water side flow control valve 8 via the pressure reducing valve 3, and from the hot water supply port 5,
The piping to the hot water side flow control valve 9 and the hot water supply pipe 10 is connected.
The return pipe 12 and the outgoing pipe 13 from the connection adapter 11 of the bathtub 6 are connected to a pipe connection part 14 and a pipe connection part 15, respectively.

In the reheating circuit 24, a pump 16 and a two-way valve 17, a reheating heater 18 and a piping connection 15 are sequentially connected from a piping connection portion 14, and a temperature detector 19, a water level sensor 20, and a flow switch 21 are provided on the way. It is provided and comprised. The pouring circuit 25 is configured to be connected from the water-side flow control valve 8 and the hot-water flow control valve 9 to a reheating circuit 24 downstream of the pump 16 via a pouring opening / closing valve 22 and a check valve 23. The pouring circuit 25 has a vacuum break valve 26
The water supply source and the bathtub 6 are cut off.

At the time of automatic pouring, the controller 23 controls the two-way valve 1
7 and the pump 16 is stopped, and the pouring on / off valve 22 is stopped.
open. The mixed hot water adjusted to an appropriate temperature by the water side flow control valve 8 and the hot water flow control valve 9 is poured into the bathtub 6 from the connection adapter 11 through the outflow pipe 13 of the reheating circuit. Since the return pipe 12 connected to the water level sensor 20 is closed at one end by the two-way valve 17, the water pressure of the bathtub hot water from the connection adapter 11 is transmitted, and the pressure is detected by the water level sensor 20.

Since the return port is open to the atmosphere until the water surface of the bathtub 6 reaches the connection adapter 11, the pressure of the water level sensor 20 does not change. Water surface is connection adapter 11
When it reaches, the return port is filled with hot water, and then the connection adapter 1
A change in the water level from 1 is detected by the water level sensor 20.
After detecting a change in water level, the two-way valve 17 is opened, and hot water is supplied to the return pipe 12. After a certain time, the pouring on / off valve 22 is closed, and the pump 16 is operated to circulate bath water in the reheating circuit to discharge air remaining in the reheating circuit. Thereafter, the signal from the water level sensor 20 when the two-way valve 17 is closed and the pump 16 is stopped is used as a reference signal, and the pouring on / off valve 22 is opened again to restart pouring. Thereafter, at the point where the signal from the reference signal reaches the set water level, the pouring / opening / closing valve 22 is closed, and pouring into the bathtub 6 is automatically stopped.

At the time of this automatic pouring, as shown in FIG. 2, when the hot water temperature in the hot water temperature adjustment range is low, the water side flow control valve 8 is fully opened (e to f), and the hot water side flow control valve 9 is hot water. The opening degree is increased as the temperature increases (a to b), and the hot water temperature is adjusted.
On the side of the hot water temperature adjustment range where the hot water temperature is high, the hot water side flow control valve 9 is fully opened (b to c), and the water side flow control valve 8 closes its opening as the hot water temperature increases (f). ~ G) Adjust hot water temperature. In this way, in the hot water temperature adjustment range, one of the water-side flow control valve 8 and the hot-water flow control valve 9 is fully opened, and the pouring flow can be maximized by adjusting the opening of only one of them. To

When hot water is spouted from the connection adapter 11 at the maximum pouring flow rate at the time of the hot pouring water, the hot water hits the bathing person and gives an unpleasant feeling. The control device 23 is a water side flow control valve 8
Is fully closed (h), and the hot water side flow control valve 9 is also set to an opening degree narrower than the fully opened state, so that hot water does not hit a person who is taking a bath.

Thereafter, when the water level is lowered by using the hot water in the bathtub 6, the control device 23 opens the pouring on / off valve 22 again to open the bathtub 6
And water is automatically refilled until the bathtub water level reaches the set water level.

When the temperature of the hot water in the bathtub 6 drops, the control device 2
3 opens the two-way valve 17 to operate the pump 16 and energize the reheating heater 18 to circulate and heat the bathtub hot water.
The temperature of the bath water from the return pipe 12 is detected by the temperature detector 19, and when the temperature reaches the set temperature, the energization of the reheating heater 18 is stopped, the operation of the pump 16 is also stopped, and the reheating is automatically stopped. The reheating can be started manually or by operating the pump 16 at regular time intervals to activate the temperature detector 19.
, The temperature of the bathtub hot water is detected, and when the temperature of the bathtub falls below the set temperature.

According to the configuration of this embodiment, the bathtub 6 can be automatically filled with hot water at an appropriate temperature and at an appropriate amount, and can be automatically refilled. The reheating heater 18 automatically reheats the bathtub hot water without using the hot water in the hot water storage tank 1, and there is no fear of running out of the hot water storage tank 1. In addition, when there is sufficient hot water in the hot water storage tank 1, high-temperature hot water can be supplied, and comfortable high-temperature hot water can be supplied so that hot water does not hit a bathing person.

[0018]

As described above, the bath apparatus of the present invention comprises a control device, a reheating circuit comprising a reheating heater and a pump for heating bath water, and a flow rate adjusting means for adjusting the flow rate of tap water from the hot water storage tank. A valve and a flow control valve for adjusting a water flow rate; a pouring circuit connected to the reheating circuit via the pouring on / off valve from the two flow control valves; and a temperature detector and a water level sensor for the reheating circuit. And, during automatic hot water supply, of the two flow rate regulating valves, is set according to the hot water temperature set value.
Fully open one flow control valve and control the other flow control valve.
By controlling the temperature of the hot water from the hot water storage tank,
The hot water supply to the bathtub is set to the maximum flow rate. Soshi
Therefore, by adopting such a mixed water control method,
The desired mixing in a short time within the specified hot water temperature setting range.
Hot water can be secured, and the time for filling the bathtub is extremely high
It can be shortened. In addition, the reheating heater makes it possible to reheat the bath tub regardless of running out of hot water .
Therefore, usability can be improved. In addition, when hot
Fully close the water side flow control valve and fully close the hot water side flow control valve.
The opening degree is lowered from the opening, and the flow rate at the time of hot water
Because it is controlled to be less than the flow rate,
There is no need to worry about hot water splashing on people, and safe and comfortable hot water can be supplied.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a bath apparatus according to an embodiment of the present invention.

FIG. 2 is an operation diagram of a flow control valve in the embodiment.

FIG. 3 is a configuration diagram using a conventional electric water heater.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 hot water storage tank 6 bath tub 8 water side flow control valve 9 hot water side flow control valve 12 return pipe 13 going pipe 16 pump 17 two-way valve 18 reheating heater 19 temperature detector 20 water level sensor 21 flow switch 22 pouring hot water opening / closing valve 23 control Equipment 24 Reheating circuit 25 Pouring circuit

──────────────────────────────────────────────────の Continued on the front page (72) Inventor Kazuhiko Miyamoto 1006 Kadoma Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (72) Inventor Kenshi Akakawa 1006 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A-62-210347 (JP, A) JP-A-63-213742 (JP, A) JP-A-2-168089 (JP, A) JP-A-3-31256 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) F24H 1/00 602-606 F16K 11/00-11/24

Claims (1)

(57) [Claims] 1. A reheating circuit comprising a reheating heater and a pump for heating bathtub water, a hot-water flow control valve for adjusting the flow of hot water from the hot-water storage tank, and a water-side flow control valve for adjusting the flow of water . A pouring circuit connected to the reheating circuit via a pouring on / off valve from the two independently provided flow regulating valves, and a temperature detector and a water level sensor arranged in the reheating circuit; When the hot water temperature is set in advance
In the range, the flow rate on the side that is fully opened according to the hot water temperature set value
Select the control valve and fully open the flow control valve on the selected side.
Control the other flow rate control valve to set the hot water temperature
Automatically set the conditions to obtain the maximum hot water supply flow rate,
Supply hot water at the maximum hot water supply flow rate while securing the desired hot water temperature
At the same time, when the hot water is hot, the water side flow control valve is fully closed, and the opening of the hot water flow control valve is lowered from the fully open position, so that the flow at the time of the hot water is lower than the flow at the time of automatic hot water supply. Device consisting of a control device for controlling the bath.