JP3016802B2 - Operation control method of bathing hot water for bathroom - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an operation of a cascading hot water device in which a bath device and a cascading water device for pumping hot water in a bathtub and applying it to a human body are used. It relates to a control method.

It should be noted that the soaking hot water is a bathing method in which a large amount of hot water is dropped or ejected from a discharge port provided above a human body, and the water flow is applied to a shoulder, a neck, or the like to perform massage.

[Conventional technology]

As shown in FIG. 3, the tap water in a home bathroom is connected to a discharge pipe c provided in a bathroom b by branching a tapping pipe of a water heater a to serve as one of multifunctional showers. It is basically the same as a shower, except that the method of discharging hot water is changed. In addition, in FIG. 3, d is a remote control for pouring hot water.

Since the used hot water is drained as it is, there is a problem that the economical loss is large only by using a large amount of hot water.

In addition, it is necessary to use a large water heater, in which case the water heater is often used for other purposes such as kitchen, so it is susceptible to hot water temperature fluctuations when using the water heater at the same time, May cause discomfort during use.

In order to improve the problems of the prior art as described above, the present inventors connect a water suction port with a filter to a bathtub, raise a pipe connected to the water suction port upward through a pump, and at the top of the bathtub. A discharge port for discharging toward the bathtub at a position higher than the bathtub is connected to the end of the pipe, and the bathtub water pumped by the pump is discharged from the discharge port to hit a human body in the bathtub. A cascading hot water device that allows the cascading water to be collected in a bathtub was proposed.

[Problems to be solved by the invention]

According to the above proposal, since the hot water in the bathtub is pumped and the hot water is performed, there is no possibility that the temperature of the hot water fluctuates as in the simultaneous use of the water heater, and the hot water can always be performed at an appropriate temperature. In addition, most of the hot water used for the hot water is collected in the bath tub so that the hot water can be economically used.

However, since the hot water uses a large amount of hot water from the beginning, it cannot be avoided that there is hot water that is scattered and lost, and if the hot water is used for a long time, the hot water in the bathtub gradually decreases. As a result, the pump may run idle.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and to provide a hot water operation control method capable of automatically replenishing hot water even when the water level in a bathtub decreases due to the use of hot water. With the goal.

[Means for solving the problem]

In order to achieve the above object, the present invention has a bath unit valve between a water heater side circuit and a bath additional heating side circuit, and opens the bath unit valve to supply hot water heated by a water heater to a bathtub. An automatic bath device that can be filled with hot water inside,
Combined with a pouring hot water device that pumps hot water in the bathtub and applies it to the human body and turns on the pouring hot water switch, drives the pouring hot water pump and constantly detects the water level in the bathtub while the pump is running. When the detected value falls below a certain set water level, the pouring unit valve is opened until the set water level is reached, water is poured from the water heater into the bathtub, and a sudden drop in the water level when the bather leaves the bathtub is detected. Then, the pouring water pump is automatically stopped.

As described above, the present invention provides an automatic bath apparatus in which a bath unit valve is opened and hot water heated by a water heater can be filled in a bathtub, and a pump that pumps hot water in a bathtub and hits a human body. Combined with a hot water supply device, the water level in the bathtub is constantly detected while the pump is running, and when the detected value falls below a certain set water level, the pouring unit valve is opened until the water level reaches the set water level, and hot water is supplied into the bathtub. The pouring hot water pump is automatically stopped when pouring water from the bath and detecting a sudden drop in the water level when the bather leaves the bathtub. The water level of the hot water can be prevented from lowering beforehand, and the bather does not need to turn off the hot water pump.

〔Example〕

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 and 2.

FIG. 1 is a flowchart showing one embodiment of the operation control system of the present invention, and FIG. 2 is a schematic diagram showing the configuration of a device to which the present invention is applied.

Prior to describing the operation control method of the present invention, first, the configuration of the appliance will be described with reference to FIG.

In FIG. 2, reference numeral 1 denotes an automatic bath apparatus, 2 denotes a hot water bath apparatus, and 3 denotes a bathtub.

The automatic bath apparatus 1 includes a hot water supply device including a heat exchanger 4a for hot water supply and a burner 4b thereof, a reheating circuit for a bath including a heat exchanger 5a for additional heating and a burner 5b, and a tapping pipe 6 of a water heater. A water pouring unit valve 7 provided in a pipe branching to the bath reheating circuit, and setting a desired water level and hot water temperature on a remote controller 8 for an automatic bath apparatus, and then turning on an automatic operation switch. Then, the pouring unit valve 7 is opened by the control unit 9 for the automatic bath apparatus comprising the microcomputer control unit, and the hot water heated by the water heater is poured into the bathtub 3 via the bath reheating circuit, and the bathtub water level is set to the set water level. Water level sensor 10
When the temperature is detected, the pouring is stopped, the temperature of the hot water in the bath tub is detected by the thermistor 12 while driving the bath pump 11, and when it does not reach the set hot water temperature, the reheating burner 5b is ignited. When the temperature of the hot water reaches the set hot water temperature, the burner 5b is extinguished and the pump 11 is stopped. The bath reheating circuit is automatically operated for a certain period of time, for example, every 30 minutes to maintain the set hot water temperature, or the remote controller 8 is provided with a reheating switch and the reheating switch is turned on. It is configured to perform the reheating operation.

The whirlpool hot water device 2 is configured to pump hot water in a bathtub by a whirlpool hot water pump 13 and discharge the hot water from a discharge port 14 arranged at a high position toward the bathtub. A hot tub water level sensor 15 is provided. In addition, 16 is a remote control for a hot water bath, 17 is a microcomputer control unit for a hot water bath, and when a water level sensor 15 for a hot water detects that the water level sensor 15 is below a certain set water level, the control unit 17 for the hot water bath sends A signal is sent to the automatic bath controller 9 to open the pouring unit valve 7 and to operate the water heater. In FIG. 2, reference numeral 18 denotes a fan, and reference numerals 19 and 19 'denote gas proportional valves.

Next, a method for controlling the operation of a hot water bath according to the present invention will be described with reference to FIG.

As shown in FIG. 1, when the pouring hot water switch is turned on, the water level in the bathtub is detected by the pouring hot water level sensor 15 and the pouring hot water pump 13 is driven. To detect the water level in the bathtub. Then, it is determined whether or not the detected water level is below a certain set water level. When it is detected that the water level is below the set water level, the pouring unit valve 7 of the automatic bath apparatus 1 is opened and the water heater is operated to pour the water into the bathtub 3. When the water level in the bathtub reaches the set water level, the pouring unit valve 7 is closed to stop the operation of the water heater. When the bathtub water level is equal to or higher than the set value, the pouring water pump is driven until the pouring water switch is turned off.

In the present invention, while performing the hot water operation as described above, the water level sensor 15 detects whether or not the water level has sharply decreased, and when the water level has sharply decreased, a person comes out of the bathtub. Then, the pump 13 is stopped. In this case, the bather does not need to turn off the cascading hot water pump.

〔The invention's effect〕

As described above, according to the present invention, in a device that performs hot water by pumping hot water in a bathtub by a pump, the automatic bath device combined with the device automatically prevents the bathtub water level from dropping, There is an effect that usability can be improved.

[Brief description of the drawings]

FIG. 1 is a flowchart showing an example of a method for controlling the operation of a hot water bath according to the present invention, and FIG. 2 is a schematic diagram showing a configuration of an appliance. FIG. 3 is an explanatory diagram of a conventional hot water bath. 1 ... Automatic bath device, 2 ... Utase hot water device, 3 ... Bathtub, 4a ... Heat exchanger for hot water supply, 4b ... Same burner, 5a ... Heat exchanger for reheating bath, 5b ... Same Burner, 6 ... tapping pipe,
7 ... Pouring unit valve, 8 ... Remote controller for automatic bath apparatus, 9 ... Control unit, 10,15 ... Water level sensor, 11 ... Bath pump, 12 ... Thermistor, 13 ... Utase hot water Pump, 14 …… Discharge port, 16 ……
... the control unit.

Continuation of the front page (72) Inventor Haruo Kawasaki 200-202, Higashi-Tahara, Hadano-shi, Kanagawa (56) References JP-A 1-2212860 (JP, A) Full-fledged 1988-146630 (JP, U) (58) Survey Field (Int.Cl. ⁷ , DB name) A61H 9/00 A61H 33/00

Claims (1)

(57) [Claims] 1. A bath unit valve is provided between a water heater side circuit and a bath additional heating side circuit, and the bath unit valve is opened so that hot water heated by the water heater can be filled in a bathtub. Combining an automatic bath device and a hot water bath device that pumps hot water in a bathtub and applies it to a human body and turns on the hot water switch, drives the hot water pump and drives the hot water bath pump. The water level is always detected, and when the detected value falls below a certain set water level, the pouring unit valve is opened until the set water level is reached, and water is poured from the water heater into the bathtub, and suddenly when the bather leaves the bathtub A method for controlling the operation of a bath tap water characterized by automatically stopping a tap water pump upon detecting a serious drop in water level.