JPH0147700B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an improvement in the detection mechanism of a bath device having a water level detection device.

Conventional configuration and its problems Conventionally, a bathtub water level detection system has been configured as shown in FIG. That is, when the water level sensor part 3 suspended from the upper end of the bathtub 2 by the stopper 1 receives water up to the set water level, it sends a signal indicating the completion of water supply to the notification unit 4 by energizing the internal electrodes. In response, the notification unit 4 is connected to notify the user with a buzzer or the like.

In this case, the water level sensor section 3 must be positioned by the user assuming the desired water supply completion water level in advance and moving the stopper 1.
The operation was complicated and the water level could only be detected at a fixed value, making it impossible to check the water level during water supply or when necessary in any location other than the bathroom. It also had drawbacks such as detracting from its aesthetic appearance.

Purpose of the Invention The present invention solves the above-mentioned conventional drawbacks by realizing a system that detects the water level in the bathtub in an analog manner by using the drain pipe of the bathtub, and enables remote water level detection in places other than the bathroom. enable, and
The purpose is to improve the aesthetic appearance of the bathroom.

Composition of the Invention In order to achieve the above object, the bath with a water level detection mechanism of the present invention includes a bathtub, a drain pipe for draining water from the bathtub, an electric drain valve for electrically controlling draining of the bathtub, and a bathtub with a water level detection mechanism. A water pressure sensor provided on a drain pipe between the electric drain valve and a detection signal from the water pressure sensor are inputted, and the bathtub water level is estimated and calculated, and based on the calculation result, heating control of the bath and the electric drain valve are performed. A heating controller was installed to control this.

With this configuration, water pressure corresponding to the water level in the bathtub is applied to the water pressure sensor, and the heating controller constantly stores this detection signal as water level data, sends it to a remote controller with a built-in microcomputer, etc., and displays it as water level information. This allows the water level to be monitored at a location other than the bathroom, and improves the aesthetic appearance of the bathroom.

DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of the present invention will be described in FIGS. 2 to 4.
This will be explained based on the diagram. Fig. 2 is a block diagram of the bath equipment, and Fig. 3 is a block diagram of the control circuit.
FIG. 4 is a configuration diagram of the remote controller.
The same parts as in FIG. 1 are given the same numbers.

In FIG. 2, the bathtub 2 is connected to be supplied with water by a water supply pipe 6 via an electric water supply valve 5, and drained by a drain pipe 8 having an electric drain valve 7. The drain pipe 8 has a recessed part 10 between the drain port 9 of the bathtub and the electric drain valve 7, and a water pressure sensor 11 is connected to the recessed part 10 so as to receive the water pressure of the water in the bathtub.

Further, a circulation pipe 14 for heating the water in the bathtub 2 is connected to the side surface of the bathtub 2 via a heat exchanger 13 of the heating source 12.
is equipped with a circulation pump 16 that forcibly circulates water in the bathtub 2 through a temperature sensor 15 that detects the temperature of the water. In addition, the heating source 12 receives a control signal from a remote controller 17 installed outside the bathroom a, inputs detection signals from a water pressure sensor 11 and a temperature sensor 15, and inputs detection signals from an electric water supply valve 5, an electric drain valve 7, and a circulation pump 16. and a gas valve 19 that controls the supply of gas to the burner 18, respectively.

In FIG. 3, the heating controller 20 (4-bit microcomputer, etc.) has a ROM 2 internally storing a program for managing heating control operations.
1 and a RAM 22 for temporarily storing data, from the water pressure sensor 11 to a pressure-voltage converter 23 and an analog-to-digital converter (hereinafter referred to as A/D).
24 to the input port. Further, the temperature sensor 15 is connected to the input port via the temperature-voltage converter 25 and the A/D 24. This heating controller 20 further includes an electric water supply valve 5, an electric drain valve 7, a circulation pump 16,
It is connected to send an operating signal to the gas valve 19. The remote controller 17 is controlled by a microcomputer (4-bit, etc.) 26.
This microcomputer 26 is connected to the heating controller so as to send and receive serial data, and is connected to input settings from the keyboard 27 using numerical keys such as ON/CFF keys, and displays information based on water level and temperature information from the heating controller 20. It is connected to a means (such as a CRT) 28 via a display driver 29 for display. Also, like the heating controller 20, there is a ROM30 and a RAM3 inside.
1.

In FIG. 4, the keyboard 27 consists of numeric keys, a curl key, a display means ON/OFF key, and a heating sequence start key and reset key. 32 is a buzzer for notifying completion of boiling, 28
is a display means for displaying water level, temperature information, and boiling time.

In the above configuration, the user first sets the boiling time, desired hot water temperature, and desired hot water temperature using the keyboard 27 of the remote controller 17. Next, when the start key is input, the microcomputer 26 performs reverse calculation of the ignition time based on the input data, and sequentially sends water supply and heating signals to the heating controller 20. The heating controller 20 receives water supply and heating signals from the remote controller 17, sends a closing signal to the electric water drain valve, and closes the electric water supply valve 6.
Send an open signal to. The rise in the water level in the bathtub 2 is constantly monitored by the water pressure sensor 11 via the calculation unit 24a. Furthermore, if the water level becomes higher than the upper pipe of the bathtub circulation pipe 14, an operation signal is sent to the circulation pump 16, and the temperature sensor 15 periodically detects the water temperature. If the water level is lower than the set water temperature, the gas to the burner is Heating is controlled by operating the gas valve 19 that adjusts the amount. When the water level reaches the set water level, a close signal is sent to the electric water supply valve 5 to stop water supply. When the set water temperature is reached, the gas valve 19 is closed to finish heating. Furthermore, a boiling completion signal is sent to the remote controller 17, and in response to this, the remote controller 17 displays a boiling completion indication on the display means 28,
Additionally, a buzzer 32 notifies the completion of boiling. Therefore, when draining water, the heating controller 20
An operating signal is sent to the electric drain valve 7, and the water pressure sensor 11 obtains a water level signal that decreases moment by moment. Since the water level can be detected even at the bottom of the bathtub from the lower pipe of the bathtub circulation pipe 14, it can be detected that the bathtub water has been completely drained. Furthermore, the water pressure sensor is installed in a position that is not easily affected by heat, such as in the combustion part of the bathtub, and is therefore extremely unaffected by temperature characteristics.

In addition, since the water pressure corresponding to the water level in the bathtub is applied to the water pressure sensor, the water level can be constantly monitored, making it possible to detect the water level in places other than the bathroom. Improves aesthetic appearance.

Effects of the Invention As described above, according to the bath with a water level detection mechanism of the present invention, a water pressure sensor that detects water pressure according to the water level of the bathroom tub and a detection from the water pressure sensor are provided in the drain pipe connecting the bathtub and the electric drain valve. By providing a calculation unit that inputs signals and estimates the water level in the bathtub, the water level in the bathtub can be detected in an analog manner, making it possible to detect the water level in places other than the bathroom, and improving the aesthetic appearance of the bathroom. Effects can be obtained.

[Brief explanation of drawings]

Fig. 1 is a perspective view of the main parts of a conventional bath device with a water level detection device, Fig. 2 is a configuration diagram of a bath device with a water level detection device according to an embodiment of the present invention, and Fig. 3 is a block diagram of the control circuit. , FIG. 4 is a configuration diagram of the remote controller. 2... Bathtub, 7... Electric drain valve, 8... Drain pipe, 11... Water pressure sensor, 20... Heating controller, 24a... Arithmetic unit.

Claims (1)

[Claims] 1. A bathtub, a drain pipe for draining water from the bathtub,
An electric drain valve that electrically controls drainage of the bathtub, a water pressure sensor installed in a drain pipe between the bathtub and the electric drain valve, and a detection signal from the water pressure sensor are inputted to calculate the bathtub water level. and a heating controller that controls the heating of the bath and the electric drain valve based on the results.