JPS6324310A - Hot and cold water mixing device - Google Patents

Abstract

PURPOSE:To realize the safety, durability and reliability, facility of an installation work, etc., by providing a hot and cold water mixing discharge port and a controller, in a case which communicates with the outside of a bathroom. CONSTITUTION:Mixture of hot and cold water produced by means of a mixing valve is discharged from a discharge port 20 provided in a bathroom. A controller 23, etc. against a controller for controlling the driving of this discharge port 20 and the mixing valve in accordance with a temperature and turn-on and stop of hot water, etc. are contained in a case 21 which communicates with the outside of the bathroom, and prevented from contacting directly in the bathroom side, with the discharge port 20 being in a high temperature state by high temperature hot water such as replenished hot water, etc. Also, since the case 21 is made to communicate with, it is prevented that a dew-drop is generated in the controller, and also, it is unnecessary to provide a through- hole separately on the bathroom wall for the purpose of wiring of the controller 23. As a result, the safety, durability and reliability, facility of an installation work, etc. are raised.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an electrically controlled hot water mixing device that mixes hot water and water to obtain an appropriate temperature.

2. Description of the Related Art A conventional hot water mixing device of this type is shown in FIG. In FIG. 3, the opening degrees of the hot water valve 3 provided in the hot water flow path 2 extending from the water heater 1 and the water valve 5 provided in the water flow path 4 are controlled to adjust the temperature of the mixed hot water, and the mixing vortex flow path 6 A controller 9 is provided with a thermistor 7 in the bathroom, and compares the signal from the thermistor 7 with a signal from a controller 8 provided inside the bathroom to set a desired temperature, thereby controlling the valve opening degrees of the hot water valve 3 and the water valve 5. and,
It is composed of a discharge fitting 1o. (For example, 1986-
18424 Publication) Problems to be Solved by the Invention However, in the above configuration, in addition to running the hot water supply piping into the bathroom, since the controller is installed inside the bathroom, a hole for wiring must be provided in the bathroom wall. , installation work becomes troublesome. In addition, since the discharge fitting 1o is made of metal, the fitting 10 also becomes hot when it is hot, and there is a risk of burns if it is touched.

Condensation inside the controller 8 also poses a problem.

The present invention solves these conventional problems, and aims to provide a hot water mixing device that has improved safety, excellent durability and reliability, and is easy to install. Alternative means To solve the above problems, the hot water mixing device of the present invention has the following features:
A mixing valve that mixes hot water and water to obtain an appropriate temperature, a mixing valve driving device that electrically drives the mixing valve, a temperature detector that detects the temperature of the mixed water, and a temperature sensor that discharges the mixed water provided inside the bathroom. A discharge port, a case covering the discharge port, a vent provided in the case to communicate the inside of the case with the outside of the bathroom, and a device installed in the case to set state quantities such as desired temperature and hot water supply/stop. The device includes a controller, a controller that compares a signal from the controller with a signal from a temperature sensor to control the mixing valve driving device, and a signal line that communicates the controller with the controller.

According to the above-described configuration, the controller compares the temperature set by the controller with the temperature detected by the temperature sensor, and sends a signal to the mixing valve driving device based on the amount of deviation to open the mixing valve. The temperature is changed in the direction that the amount of deviation decreases to obtain a mixed water temperature equal to the set temperature, and by covering the discharge port with a case, there is no chance of getting burned by touching the metal part of the discharge port. The controller is attached to the case,
The vents allow ventilation between the outside of the bathroom and the inside of the case, and the heat dissipation from the discharge ports prevents condensation inside the case, ie, on the controller.

Example Embodiments of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, a hot water flow path 11, a water flow path 12, a mixing valve 15 consisting of a hot water valve 13 and a water valve 14 provided in the two flow paths, respectively, and the hot water valve 13 and the water valve 14 each independently Electrically driven hot water valve drive device 16 and water valve drive device 17
A mixing valve driving device 18 such as the above and a temperature detector 19 for detecting the temperature of the mixed water are installed downstream of the mixing valve 15 outside the bathroom, and a spout for discharging the mixed water inside the bathroom as shown in FIG. The outlet 20 is covered by a case 21 made of resin, and the inside of the case 21 is isolated from the moisture in the bathroom and communicated with it through an outside air port 22 outside the bathroom. The case 21 is equipped with a controller 23 that sets the desired temperature and state quantities such as hot water supply/stop, and the controller 23 is separated from the moisture in the bathroom by a waterproof sheet 24, similar to the case 21. I'm taking it. The controller 2
A controller 25 is provided for controlling the mixing valve driving device 18 by comparing the temperature set in step 3 with the temperature detected by the temperature detector 19, and the controller 25 adjusts the valve opening degree of the mixing valve 15.
A mixed hot water equal to the state quantity set by the controller 23 is obtained.

Further, a signal line 26 connecting the controller 23 and the controller 25 is arranged in the vent 22.

With the above configuration, the outlet 20 is covered with the resin case 21, so that even if the metal part of the outlet 2o reaches a high temperature, such as when hot water is dispensed at a high temperature such as cold water, the user cannot directly touch the metal part of the outlet 20. It is safe and does not get stored away. Mata, controller 23
Because it is installed in the teeth 21, it can be operated very close to the discharge port 20, making it easy to use.At the same time, like the case 21, it is isolated from the moisture in the bathroom, and the case 2
The temperature inside the case 21 is slightly high due to the heat dissipated from the discharge port 20 in the case 1, and the temperature inside the case 21 is slightly high due to the configuration in which the vent 22 communicates with the outside air.
In other words, there is no possibility of condensation occurring on the controller 23, and reliability is improved. In addition, the energizing port 22 and the discharge port 2
0. Since the signal line 26 is arranged on the same axis, the installation work for installing the mixing device main body on the bathroom wall only requires opening one through hole, making the installation work simple.

Effects of the Invention As described above, the hot water mixing device of the present invention provides the following effects.

(1) When hot water is being dispensed at a high temperature, such as when hot water is being dispensed, the outlet itself becomes hot, but since it is covered with a case, there is no risk of getting burned by directly touching the outlet, making it safe.

(2) Since the controller is provided in the case 7 that covers the discharge port, it can be operated at a position close to the discharge port, making it easy to use.

(3) Since the controller is configured to be isolated from the wet sip in the bathroom, raise the ambient temperature, and communicate with the outside air, there is no risk of condensation and it is highly durable.

(4) Installation work is facilitated by arranging the ventilation port, discharge port, and signal line on the same axis.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of a hot water mixing device according to an embodiment of the present invention, Fig. 2 is an enlarged sectional view of the discharge port installed inside the bathroom in Fig. 1, and Fig. 3 is a block diagram of a conventional hot water mixing device. It is a diagram. 15...Mixing valve, 18...Mixing valve drive device, 19...Temperature detector, 20...
Discharge port, 21...Case, 22...Vent, 23...Controller, 25...
Controller, 26...Signal line. Name of agent: Patent attorney Toshi Nakao, and 1 other person Bar Mixed Ben/9-5I Hihirozo-Eshichikuchi 23-Controller, ? 5-Temporary Shiwa Layering

Claims (2)

[Claims] (1) A mixing valve that mixes hot water and water to obtain an appropriate temperature, a mixing valve drive device that electrically drives the mixing valve, a temperature detector that detects the temperature of the mixed water, and a mixed water bath installed inside the bathroom. a discharge port for discharging water, a case covering the discharge port, a vent provided in the case to communicate between the inside of the case and the outside of the bathroom, and a vent installed in the case to control state quantities such as desired temperature and hot water supply/stopping. A hot water mixing device comprising: a controller for setting, a controller for controlling the mixing valve driving device by comparing a signal from the controller with a signal from a temperature sensor, and a signal line communicating the controller and the controller. (2) The hot water mixing device according to claim 1, wherein the signal line is wired inside the vent.