JPH01260257A - Automatic hot-water feed device for bath - Google Patents

Abstract

PURPOSE:To convert switches for a bath into a single switch-type by providing a mode selecting means for automatically selecting an operation mode on the basis of signals released out of a water level detector and a hot water detector after the single switch is closed. CONSTITUTION:After a bath switch 23 is closed, whether the water level of a bathtub reaches a level (reference water level) up to a bath adapter 18 is judged depending upon whether a water level switch 20 is ON or OFF. When it is not reached to the reference water level, an automatic pouring operation is carried out, and when it is above the reference water level and the hot water temperature in the bathtub, which is detected by a hot water detector 21, indicates a reference temperature or higher, the operation of adding hot water at a high temperature (additional heating during a bath) is carried out. Further, whether or not the water level of the bathtub reaches a preset water level is judged depending upon whether a water level switch 19 is ON or OFF. In this case where the water level is more than the reference water level and less than the preset water level and the hot water temperature is lower than the reference temperature, the hot water is brought into the preset temperature and the preset water level to stop the feeding operation.

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to an automatic bath water heater that automatically pours water into a bathtub and increases the temperature of water by adding high-temperature water. .

(Conventional technology and problems) Conventionally, hot water was poured into a bathtub or heated.
An example of ia is disclosed in Japanese Unexamined Patent Publication No. 164164/1983. However, this requires a large number of operation switches, and the user has to be careful to press the switches for automatic operation and reheating. In other words, the user is his own! There was a danger that even though the driver intended to drive the vehicle in I mode, he would accidentally turn on the refiring mode.

(Means for Solving the Problems) In order to solve the above problems, the present invention has the following configuration. That is, it is a device for generating a pot and supplying it into a bathtub, and includes a water level detector for detecting the bathtub water level at at least two points, a water temperature detector for detecting the temperature of water in the bathtub, and a device for supplying bath water. The present invention is characterized in that it has a single switch for closing, and is provided with mode selection means for automatically selecting an operation mode based on the water level detector and rI4I4 ratio detector signals after the switch is turned on.

(Function) After turning on the switch, if the water level in the bathtub has not reached the predetermined fermentation water level, automatic dropping operation will be performed. ) operation, and if the water level is above the standard water level, below the set water level, and above the standard temperature, then the set temperature and water level are reached and the operation is stopped, resulting in an automatic rear-end operation.

(Actual @) In the figure, (1) is the water heater main body, which has a heat exchanger (2) and a burner (3) inside. A water m sensor (5) and a water inlet thermistor (6) are arranged in the inlet channel (4) to the heat exchange H (2), and a hot water outlet thermistor (8) is arranged in the outlet channel (7).
) and water mum valve (9)7 are arranged. Deyuji (7)
is branched, one is a bath hot water supply path (13) connected to the lower part of the side wall of the bathtub (12) via a solenoid valve (10) and a vacuum breaker (11), and the other is a general hot water supply path (13).
4). The general hot water supply path (14) is provided with a check valve (15) downstream from the branch point, and downstream of the check valve (15) is provided with a bypass solenoid valve (16) that bypasses the heat exchange H (2) from the inlet channel (4). The bypass path (17) is merged. The bath hot water supply path (13) is connected to the bathtub (12) by a path adapter (18), and the path adapter (18) is equipped with a water level switch (water level switch) for detecting the set water level as a water level detector for detecting the bath water level. (19) and the water level switch L (
20) and a water temperature detector (21) that detects the temperature of the water in the bathtub.
is provided. Incidentally, the water level detector is not limited to the water level switch, but may be constructed from a pressure sensor or the like. (22) is a remote control that controls the single switch for supplying bath water, the Furu switch (23) and the boiling mm5x switch (2
4) is provided. (25) is a gas proportional valve that controls the combustion m of the burner (3) by TA. (27) is a controller for controlling each fJ load, and has built-in mode selection means (26) for selecting an operation mode.

Next, the operation of bath hot water supply in the above configuration will be explained. First, when the swing switch (23) is turned on (Sl), the solenoid valve (lO) opens and the water flow is detected by the water flow sensor (5), and the burner is ignited. At the same time as this operation, the pass adapter (1
8) Determine whether the water level (base water level) is up to (
S2), if the water level is above the reference water level, the process proceeds to the automatic mK pouring sequence, and if it is above the water temperature sensor (21), it is determined whether the bathtub water temperature Ts detected by the water temperature detector (21) is above the reference temperature (for example, the adjusted temperature). (S3). If the bathtub water temperature rB is equal to or higher than the reference temperature, the process proceeds to the sequence of additional thrusting during bathing, and if the reference temperature is not yet reached, the sequence proceeds to the automatic additional thrusting sequence. In the automatic rear-end collision sequence, first, the water flow control valve (9) is throttled down to dispense hot water at a high temperature (for example, 85° C.) for a certain period of time (TI, for example, 5 minutes) (S4.55). This hot water may be drawn not only for a certain period of time but also to a certain temperature. After this, water level switch H09
) is ON or OFF to determine whether the set water level has been reached (S6). If it is above the set water level, it is determined that it is a rear-end collision while taking a bath, and the system moves to the rear-end collision sequence, and if it is below the water level, the automatic rear-end collision sequence is continued as follows. The bathtub I% temperature detected by the water temperature detector (21) and the boiling point s of the remote control (22)
The temperature is compared with the set temperature set by the rM setting switch (24), and if the bathtub m temperature exceeds the set temperature, it is determined that the bath has boiled57), and the water volume MM valve (9) is opened to dispense hot water at the set temperature. (S8). Then the water level rises and the water level switch H (
19) is turned ON (S9), it is assumed that the set water level has been reached and the flow ends (520). In the bathing sequence, since the bathtub water temperature is higher than the standard temperature,
There is a high possibility that someone is inside the bathtub (+2). Therefore, the degree of restriction of the water flow control valve (9) is set smaller than when hot water is tapped at a high temperature, and hot water is tapped at a medium-high temperature (for example, 70° C.) for a certain period of time (TI, for example, 5 minutes) (SIO1S5). Since the output temperature is slightly lower than the high temperature and the flow rate is high, the pass adapter (18
) The hot water spouted into the bathtub (12) quickly mixes with the hot water in the bathtub (12), and the temperature is not so high that it feels hot, which eliminates the feeling of anxiety and improves comfort. In the next step (S6), the water level will be higher than the set level, so hot water at the set temperature is poured out for 12 hours (3
11,312>End (520).

If you still feel dizzy, just press the Furu switch (23) again.

In the automatic drop sequence, hot water is first supplied to the reference water level at the set temperature (513 and 514). If the standard water level is not reached even after supplying hot water for a long time (for example, 20 minutes at T3),
It is determined that there is a water leak and the operation stops (316/517)
). When the reference water level is reached, hot water is tapped at a high temperature assuming that there is residual water below the initial reference water level (S15). When the water reaches the boiling temperature (S7), hot water at the set temperature is supplied up to the set water level (S8, S9, 520).

(Effects of the Invention) As described above, the present invention is provided with a mode selection means that automatically selects a mode according to the water level and rkh temperature, so the shaking switch can be a single switch. This eliminates the need to accidentally press the rear-end switch when the bathtub is empty and fill up the bathtub with high-temperature water, making it safe, energy-saving, and extremely easy to use.

[Brief explanation of the drawing]

FIG. 1 is an overall circuit diagram of an embodiment of the present invention, FIG. 2 is a flow diagram showing the operation of an embodiment of the present invention, and FIG. 3 is a block diagram of main parts of control. (1)... Water heater body (12)... Bathtub (19) (20)... Water level switch (21)...
Water temperature detector (23)... Furu switch (26)... Mode selection means

Claims (1)

[Claims] A device for generating and supplying hot water into a bathtub, which includes a water level detector that detects the water level of the bathtub at at least two points, a water temperature detector that detects the temperature of the water in the bathtub, and a unit that supplies hot water to the bathtub. An automatic water heater for a bath, characterized in that it has a switch, and is provided with mode selection means for automatically selecting an operation mode based on a signal from a water level detector and a signal from a water temperature detector after the switch is turned on. .