JPH0827012B2 - Hot water mixing device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a hot and cold water mixing apparatus for mixing hot water and water to obtain an appropriate temperature.

2. Description of the Related Art As shown in FIG. 2, a conventional hot and cold water mixing apparatus includes a thermistor 3 that appropriately mixes hot water and water by opening and closing two valve bodies 1 and 2 to detect a mixed water temperature. The difference between the detected temperature and the temperature set by one setter 4 is transmitted to the servomotor 6 via the controller 5, and the rotational movement of the motor 6 is transmitted to the valves 1, 2
The desired mixed water was obtained by converting into the opening / closing operation. (For example, Japanese Utility Model Laid-Open No. 55-59223) Problems to be Solved by the Invention However, in the above-mentioned configuration, when the bathroom installation is taken into consideration, there is one setting device, which causes inconvenience in use. For example, if a setting device is installed outside the bathroom, it is not possible to change the setting of mixed water in the bathroom, and if a setting device is installed only inside the bathroom, it is necessary to consider whether the elderly or children will operate it by mistake. Becomes

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a hot and cold water mixing apparatus with improved usability and safety.

Means for Solving the Problems To solve the above problems, a hot and cold water mixing apparatus according to the present invention is a mixing valve for adjusting a mixing ratio of hot water and water, and a mixing valve driving apparatus for electrically driving the mixing valve. A plurality of discharge ports, a switching valve for selecting the discharge ports, a desired temperature of the mixed water, and a plurality of setting devices provided in the vicinity of the plurality of discharge ports respectively, and the setting device of the setting device. The controller controls the mixing valve drive device according to the set temperature, and also controls the set temperature of the setter corresponding to the discharge outlet of the mixed water by giving priority to the set temperature.

Effect of the Invention With the above-described configuration, the present invention sets the temperature of the desired mixed water with a plurality of setting devices provided corresponding to the vicinity of the plurality of discharge ports, and switches the mixed hot water adjusted by the mixing valve with the switching valve. While supplying water to improve usability, hot water is selectively supplied to multiple locations, and the set temperature of the setter that corresponds to the outlet from which the mixed water is discharged is given priority to control the mixed water. Even if the set temperature of the setting device other than the discharge port being changed is changed, it is possible to prevent the supply of the mixed water at a dangerous temperature for safety.

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

In FIG. 1, a mixing valve 9 including a hot water valve 7 for adjusting the hot water flow rate and a water valve 8 for adjusting the hot water flow rate,
A mixing valve driving device 10 for electrically driving the hot water valve 7 and the water valve 8 of the mixing valve 9, a thermistor 11 for detecting the temperature of the mixed water downstream of the mixing valve 9, and a discharge destination of the mixed water The switching valve 12 is provided, and the switching valve 12 distributes the mixed water to the bath cullan 13, the washing place curran 14, and the shower 15. The three outlets (13,1
4, 15) Bathtub setter 16 and washroom setter in the vicinity
17, the setting device 18 for the shower is provided, and the temperature set by the setting device (16, 17, 18) is compared with the temperature detected by the thermistor 11, and the controller 19 controls the mixing valve driving device 10 according to the deviation amount to obtain the desired value. This is to obtain mixed water at a temperature.

Further, the three setting devices (16, 17, 18) respectively limit the temperature range that can be set. For example, the bath setting device 16 defines the entire range from water to hot water and enables pouring to hot water. The setting device 17 for the washroom is configured by setting the setting range from water to 45 ° C, and the setting device 18 for the shower is configured from water to 43 ° C.

As described above, the setting temperature range of the setting device (16,17,18) is limited according to the corresponding outlet (13,14,15). It is safe to use and there is no danger of it becoming damaged.

In addition, a plurality of setting devices (16, 17, 18) are provided in the vicinity of the plurality of discharge ports (13, 14, 15) respectively, and the mixed hot water adjusted by the mixing valve 9 is switched by the switching valve 12 and supplied. Therefore, hot water can be selectively supplied to a plurality of locations while improving operability.

Further, the controller 19 controls the discharge port (13
Or 14, 15) is detected from the switching valve 12 and its discharge port (13
Alternatively, the signal from the setter (16 or 17, 18) corresponding to (14, 15) is prioritized to be controlled so that even if the setting is changed by a third party other than the discharge destination, it is dangerous. It is safe because it does not supply mixed water at different temperatures or unpleasant temperatures.

As an effect of this embodiment, the setting device (16, 17, 18),
Since the set temperature range is configured to correspond to the corresponding discharge ports (13, 14, 15), it is possible to supply mixed water of different temperature ranges required for different hot water supply targets, and the hot mixed water can be supplied to the shower. It is possible to prevent the supply of water and to supply hot water to the bathtub at a high temperature, so that safety and convenience can be maintained for each hot water supply target.

Effects of the Invention As described above, according to the hot and cold water mixing apparatus of the present invention, the following effects are obtained.

(1) A plurality of setting devices are provided in the vicinity of a plurality of discharge ports, respectively, and the mixed hot water adjusted by the mixing valve is switched by the switching valve to be supplied. Hot water can be selectively supplied.

(2) Since the set temperature of the setting device corresponding to the discharge port from which the mixed water is discharged is controlled with priority, the user can set the set temperature of the set device other than the discharge port from which the mixed water is discharged. Even if it is changed without detecting it, it is safe because the mixed water of dangerous temperature or unpleasant temperature is not supplied.

[Brief description of drawings]

FIG. 1 is a block diagram of a hot and cold water mixing apparatus according to an embodiment of the present invention, and FIG. 2 is a block diagram of a conventional hot and cold water mixing apparatus. 9 ... Mixing valve, 10 ... Mixing valve drive device, 12 ... Switching valve,
13,14,15 …… Discharge port, 16,17,18 …… Setting device, 19 …… Control device.

Claims (2)

[Claims] 1. A mixing valve for adjusting a mixing ratio of hot water and water, a mixing valve drive device for electrically driving the mixing valve, a plurality of discharge ports, a switching valve for selecting the discharge ports, and a desired valve. The temperature of the mixed water to be set is set, and the mixing valve drive device is controlled by the plurality of setters provided corresponding to the vicinity of the plurality of discharge ports and the set temperature of the setter, and the mixed water is discharged. Hot water mixing device composed of a controller that gives priority to control the set temperature of the setter corresponding to the discharge port. 2. The hot and cold water mixing apparatus according to claim 1, wherein the setting device has a different setting temperature range according to the corresponding discharge port.