JPH0419562B2 - - Google Patents

Description

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

BACKGROUND ART A conventional hot water mixing device has a configuration in which the mixing ratio of hot water and water is adjusted by a mixing valve in accordance with the temperature set by a setting device.

An example of the above-mentioned conventional hot water mixing device will be described below with reference to the drawings.

FIG. 5 shows a conventional hot water mixing device, in which water is mixed via an electric drive device 4 so that the temperature detected by a temperature detector 5 and the temperature arbitrarily set in a setting device 8' become equal. By operating the valve 3, the mixing ratio of hot water and water was adjusted, and mixed water at a set temperature was supplied.

Problems to be Solved by the Invention However, with the above configuration, the temperature settings must be reset each time due to changes in the season or the number of users. In most cases, the temperature setting was not changed even if the temperature was below . Also, what is required as mixed water is hot water that feels warm to the human senses, but what is set is a numerical value called temperature, and even if the hot water is at the same temperature, it will be warmer than the outside temperature like in winter. When the outside temperature is low, it feels warm, and in the summer when the outside temperature is high, it feels lukewarm, so there is a problem that the mixed water that is actually required may be different.

To solve the above problems, the present invention provides a hot water mixing device that can respond to seasonal changes, requires troublesome temperature setting only at the beginning, and can thereafter constantly supply mixed water at a desired comfortable temperature. It is something.

Means for Solving the Problems In order to solve the above problems, the hot water mixing device of the present invention is provided with an outside temperature sensor, determines a hot water temperature setting value based on the temperature detected by the outside temperature sensor, and sets the hot water temperature. It has a configuration that mixes hot water and water based on the value.

Effects By having the above configuration, the present invention eliminates detailed operations to set the hot water temperature throughout the year, reduces the difference between the hot water temperature requested by the user and the set hot water supply temperature, and can be used not only throughout the year but also at all times. This means that hot water can be supplied at a temperature that adapts to the human body's sense of temperature, that is, hot water that is as warm as the user requests.

Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

In FIG. 1, 1 is a hot water supply flow path, 2 is a water supply flow path, 3 is a mixing valve that adjusts the mixing ratio of hot water and water, and 4 is a driver that drives this mixing valve 3, as shown in FIG. According to the control sequence, the temperature corresponding to the outside air temperature is determined in the controller 7 based on the detection signal detected by the outside air temperature sensor 6, and the temperature detected by the hot water temperature sensor 5 is made equal to this temperature. By adjusting the mixing ratio of hot water and water with the mixing valve 3 via the driver 4, mixed water with a comfortable temperature that better meets the requirements is supplied.The hot water temperature setting device 8 is shown in Fig. 3. As shown in the figure, the set temperature can be finely adjusted according to the user's requests, increasing comfort.

With the above configuration, as shown in Figure 2, the temperature is slightly lower in winter or in the morning when the outside temperature is low and the same temperature feels warm, and it is slightly lower in the summer or during the day when the outside temperature is high and the same temperature feels lukewarm. Since the high temperature setting automatically changes, you can obtain a comfortable mixed water throughout the year without changing the temperature setting.

Effects of the Invention The present invention obtains the following effects by providing an outside temperature sensor, a controller that determines a set water temperature corresponding to the outside temperature, and a water temperature setting device that gives a range to the set water temperature. be able to.

(1) Since the hot water temperature setting value is determined according to the outside temperature, it is possible to always set the water temperature closer to the human body's sense of temperature.

(2) Since the water temperature can be automatically set according to the season, there is almost no need to set the water temperature.

(3) Since the hot water required is mixed, there is no need to use wasted hot water, resulting in energy savings.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of the hot water mixing device of an embodiment of the present invention, and Fig. 2 shows the outside temperature and hot water temperature set value over the year, and the changes in the outside temperature and hot water temperature set value over a day in the same embodiment. Figure 3 is a correspondence diagram showing the correspondence between outside temperature and hot water temperature set value in the same example, Figure 4 is a sequence diagram of the same, and Figure 5 is a sectional view of a conventional hot water mixing device. be. 1...Hot water supply flow path, 2...Water supply flow rate, 3...Valve,
4...driver, 5...hot water temperature sensor, 6...outside temperature sensor, 7,7'...controller, 8,8'...hot water temperature setting device.

Claims (1)

[Claims] 1. A hot water supply flow path, a water supply flow path, a valve for controlling the flow rate of hot water and water, a driver for driving the valve, and a temperature control system for controlling the temperature of the mixed water mixed by the valve. A temperature sensor that detects the temperature, an outside temperature sensor that detects the outside temperature, and a water temperature setting device that changes the detailed settings of the water temperature.
A hot water mixing device including a controller that operates a driver based on detection signals from the temperature sensor and the outside temperature sensor. 2. Determine the set temperature of the hot and cold mixed water based on the detection signal of the outside temperature sensor, compare this set temperature with the temperature according to the detection signal of the temperature sensor, and determine that the set temperature is higher than the temperature detected by the temperature sensor. In this case, the driver is operated in the direction of increasing the opening area of the hot water side flow path in the valve, and when the hot water temperature is higher than the set temperature, the driver is operated in the direction of increasing the opening area of the water side flow path. The hot water mixing device according to claim 1, having a function of operating the mixed water temperature to maintain the mixed water temperature at the set temperature. 3. The hot water mixing device according to claim 2, wherein the mixed water set temperature is determined by the controller based on the temperature detected by the outside air temperature sensor, and the mixed water set temperature is determined in comparison with each outside temperature.