JPH0648110B2 - Bath water heater - 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 water heater for automatically supplying water to a bathtub by issuing a command for hot water supply from outside to use a telephone line.

[0002]

2. Description of the Related Art Conventional bath hot water supply devices are generally capable of remotely controlling hot water supply to a bath tub from a remote controller provided in another room of the house. On the other hand, recently, attempts have been made to remotely control an object to be controlled by transmitting a control signal using a telephone line. One of them is a teleconverter function, which is one of HA (home automation) functions, which has already been implemented in some electric devices. In these times, there is a growing need to use the telephone line to boil the bath from outside even in the hot water supply field.

[0003]

However, when the hot water is supplied to the bath by the teleconverter, since there is no person on the spot, particularly reliable and safe operation is required. By the way, normally, in a hot water supply device, the hot water supply temperature is set by a remote controller so that the hot water supply temperature can be widely varied within a temperature range of 36 ° C. to 80 ° C., for example. This hot water supply at a temperature as high as 80 ° C. is often used in the kitchen to wash dishes that are sticking with oil, and in the bath to pour hot water into a bathtub. Therefore, it is sufficiently conceivable that the hot water supply device is used at a high temperature setting of 80 ° C. and ends, and the user goes out with the high temperature setting. In such a case, if the hot water is supplied to the bath by the telecon as it is, 80 ° C hot water is supplied to the bathtub, resulting in a waste of energy. In addition, if you want to take a bath immediately after you go home and operate the water heater from outside, you can take a bath in a relatively short time. If you do, you may not be able to take a bath immediately, and if you do not check it carefully, you may get burned, so it is easy to make corrections for accidents that cannot occur with conventional water heaters or misoperations. There was a problem that there was not.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a bath water heater capable of supplying water to a bath safely and securely from a destination by a teleconverter.

[0005]

In order to achieve the above object, a bath water heater according to the present invention comprises a telecontroller which operates by a hot water supply start signal transmitted using a telephone line,
A water heater that heats tap water to discharge hot water, a temperature control controller that controls the hot water supply temperature of the water heater to a set temperature, and valve means that is provided on the hot water supply side of the water heater to turn hot water on and off, A remote control for freely setting the hot water supply temperature by operating from the same house, a fixed temperature setting means for setting the hot water supply temperature to a predetermined fixed temperature, a temperature set value by the remote control, and a fixing by the fixed temperature setting means The temperature switching means is provided with a temperature switching means for selectively switching the temperature setting value. When the temperature switching means receives a hot water supply start signal from the telecontroller, the temperature controller is provided with a fixed temperature set by the fixed temperature setting means. The bath water is supplied at a fixed temperature.

[0006]

According to the present invention having the above-mentioned structure, when the hot water is supplied to the bath by the telecon function using the telephone line from the outside,
Regardless of the temperature setting of the remote control inside the house, it is possible to supply hot water at a fixed temperature suitable for bath hot water supply.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the system of the present invention will be described below with reference to FIG. Reference numeral 1 denotes an instantaneous gas water heater, which normally ignites gas and supplies hot water by opening a faucet provided on the hot water outlet side and flowing water. Reference numeral 2 denotes a valve means realized by an electromagnetic valve or the like, and an ON / OFF signal (ONOF signal) from the timer means 6 can control hot water discharge and stop from the gas water heater 1. 3 is an automatic water stop means, which uses a fixed water stopcock in the embodiment, and the integrated value of the hot water supply amount when the valve means 2 is turned on and hot water is supplied to the bathtub 4 becomes a preset value. It can be stopped automatically. Needless to say, the automatic water stopping means may be one that detects the water level in the bathtub 4 and automatically stops it. Reference numeral 5 denotes a tele-controller, which receives a bath hot water supply command transmitted from the outside using the telephone line T and outputs a hot water supply start signal (STRT signal) for triggering the timer means. The timer means 6 is an ON / OFF signal (ONOF signal) to the valve means 2 described above.
In addition, a temperature switching signal (CHNG signal) is sent to the temperature switching means 7.
Is output. The ONOF signal and the CHNG signal may be the same signal, and the ONOF signal and the CHNG signal are output from the timer means 6 in this embodiment, but may be output directly from the telecontroller 5. Needless to say.

The temperature switching means 7 sets the temperature setting signal (TSET signal) to the gas water heater 1 to a set value (TVAL signal) from the remote controller 8 or a set value (TFIX fixed for bath hot water supply only). Signal) is selectively switched. FIG. 2 shows a conceptual diagram of the temperature switching means 7. Reference numeral 9 is a fixed temperature setting means composed of a circuit for producing a fixed temperature set value (TFIX signal), and a temperature switching signal (CH
NG signal) switches the TFIX signal and the TVAL signal. The temperature switching by the temperature switching means 7 is
In the case of remote control from the same house by the remote controller 8, the TVAL signal is sent, and the telephone line T by the telecontroller 5
In the case of remote control using, the TFIX signal is selected.

The switched temperature set value signal is TSET
The signal is given to the combustion controller 12 as the temperature controller of the gas water heater 1, and is compared with the hot water temperature signal (WTMP signal) detected by the hot water thermistor 10 to control the combustion of the gas and the hot water temperature. It is controlled to reach the set value. Reference numeral 11 is a gas combustor.

According to the structure of this embodiment, when hot water is supplied to the bath by a telecon from a destination using a telephone line, the fixed hot water supply is always most suitable regardless of the hot water temperature set value set by the remote controller in the house. Since it is supplied with hot water of the temperature, it is possible to prevent the waste of energy due to erroneous operation such as high temperature setting and the risk of accidentally entering a hot bath.

[0011]

As described above, when the bath water heater of the present invention is used for bath hot water supply from a remote place by using the telephone line by the telecontrol system, the temperature set value of the remote control in the house is at what degree. Even if there is, the bathtub can be automatically filled with hot water having a constant temperature most suitable for bath hot water supply, so that the following effects are produced. (1) Generally, when hot water is normally supplied at about 40 ° C. but is supplied at 80 ° C., energy of the temperature difference is wasted. However, according to the bath water heater of the present invention, It is possible to prevent such waste of energy.
(2) In addition, if you generally want to take a bath immediately after returning home and operate it by a tele-control system from the outside and take a bath immediately after returning home, the temperature setting of the water heater is mistakenly set to 80 ° C. If it is set and hot water is filled with 80 ° C, it is necessary to add water to lower the temperature, which wastes energy and time. On the other hand, if the water is accidentally filled with water at a low temperature of 36 ° C., it will take a troublesome state that the user cannot enter the bath without reheating or hot water.

However, the present invention can prevent such energy waste and time waste, and can provide a really convenient bath water heater that matches the living feeling of modern people who want to use their time effectively. (3) Generally, if the hot water supply temperature of the water heater is kept high and the tele control system is used to fill the bathtub with hot water of 80 ° C, you will get burns if you do not enter the bath after carefully checking. A dangerous situation such as is also conceivable. For example, when a small child takes a bath by himself, there is a fear that a serious accident may occur.

The present invention can provide a bath water heater which prevents such a dangerous condition and allows a user to take a bath with peace of mind at any time.

[Brief description of drawings]

FIG. 1 is a system diagram of a bath water heater according to an embodiment of the present invention.

FIG. 2 is a block diagram of a main part of the device.

[Explanation of symbols]

1 Hot Water Heater 2 Valve Means (Electromagnetic Valve Means) 4 Bath 5
Tele controller 7 Temperature switching means 8 Remote control 9 Fixed temperature setting means 12 Temperature control controller (combustion controller)

Claims (1)

[Claims] 1. A telecontroller operated by a hot water supply start signal transmitted by using a telephone line, a water heater for heating tap water and discharging hot water, and a hot water supply temperature of the water heater is controlled to a set temperature. Temperature controller to
Valve means provided on the hot water supply side of the water heater to turn hot water on and off, a remote controller for freely setting the hot water temperature by operation from the same house, and a fixed device for setting the hot water temperature to a predetermined fixed temperature A temperature setting means and a temperature switching means for selectively switching a temperature setting value by the remote controller and a fixed temperature setting value by the fixed temperature setting means are provided, and the temperature switching means receives a hot water supply start signal from the telecontroller. Is a bath water heater configured to supply a fixed temperature set by the fixed temperature setting means to the temperature control controller to supply hot water at a fixed temperature.