JP2970143B2 - Hot water supply control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water supply control device for controlling the temperature of hot water for a shower or the like.

[0002]

2. Description of the Related Art Conventionally, there has been a hot water supply control device of this type as shown in FIG.
No.). FIG. 4 shows that the heat exchanger 2 is heated by the heating device 1 and the temperature controller 4 is operated in accordance with a signal from the hot water temperature detector 3 to control the temperature to be equal to the set temperature of the tap water temperature setting device 5.
There is a type in which a signal that changes with time by a signal generator 6 is sent to a tapping temperature setting device 5 to change the tapping temperature. FIG. 5 shows a tapping temperature of a hot water supply device in which a set temperature is changed at a constant cycle, and a change in the hot water temperature has a massage effect on a shower or the like. An irregular waveform as shown in FIG. 6, for example, 1 / f fluctuation close to a natural rhythm is known.

[0003]

However, when the tapping temperature changes at a constant cycle as described above, the same waveform is repeated, so that even if the frequency or level is changed, it becomes monotonous and the massage effect is diminished. In the case of an irregular waveform such as 1 / f fluctuation, as a result of a demonstration experiment, it was found that although the user did not get tired, there was no sharpness and the massage effect was small.

The present invention has been made to solve the above-mentioned problems, and provides a hot water supply control device that gives a stimulus that does not get tired due to a steep change in hot water temperature.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a hot water supply control device according to the present invention includes a tapping temperature setting device, a temperature controller for adjusting hot water temperature, a steeply changing and maximum value. A signal generator for continuously sending a signal in which the holding time at the minimum value changes irregularly to the tapping temperature setter; and a hot water supply controller that adjusts the tapping temperature in accordance with the signal from the tapping temperature setter. Things.

[0006]

[0007]

With the above arrangement, hot water is supplied in various patterns while the temperature of the hot water is rapidly changed.

[0008]

An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, a temperature controller 7 is provided with a hot water flow path 8 and a water flow path 9. There is a variable operating force generating means 10 on the water flow path 9 side, and the variable operating force generating means 10
1 and a coil 12, and the coil 12 is electrically connected to a hot water supply controller 13. The lower end of the iron core 11 is in contact with the upper end of a valve shaft 14, and a water valve body 15 and a hot water valve body 16 are fixed to the valve shaft 14 and move integrally with the valve shaft 14. Water valve body 15
The hot water valve body 16 engages with the water valve port 17 and the hot water port 18 respectively to adjust the flow rate of hot water and water, and has a cylinder 19 having substantially the same cross-sectional area as the water valve port 17 and the hot water valve port 18. In the cylinder 19, a partition 20 fixed to the valve shaft 14 is provided with a gap. Reference numeral 21 denotes a main spring, which acts on the valve shaft 14 in the upward direction in the figure.
On the downstream side of the water valve body 15 and the hot water valve body 16, a spring 22,
Variable valve bodies 24 and 25 supported by 23 form a variable throttle. The water and hot water that have passed through the variable valve bodies 24 and 25 are mixed in a mixing unit 26, and the temperature of the hot water is detected by a temperature detector 27. Reference numeral 28 denotes a tapping temperature setting unit, which sets the tapping temperature manually or automatically. The tapping temperature is compared with a signal from the temperature detector 27 and is calculated by the tap water supply controller 13 to control the tapping temperature. 29 is a signal generator which continuously generates a signal which changes steeply and whose holding time at the maximum value and the minimum value changes irregularly, and which generates the signal which changes continuously over time. The signal is superimposed on the signal of the tapping temperature detector 27.

Next, the operation will be described. When the current is increased in the coil 12 by the signal from the hot water supply controller 13 while the hot water is flowing, a downward force is generated in the iron core 11 and the valve shaft 14 is moved downward against the force of the main spring 21. Energize. As a result, the water side flow path 9 is closed, and the hot water side flow path 8 is opened,
The outlet pressure of the hot water valve body 16 and the outlet pressure of the water valve body 15 change respectively,
The pressure acts on the hot water valve body 16 and the water valve body 15 to balance them. As a result, the temperature of the mixed hot water increases. On the other hand, when the current of the coil 12 is reduced, the water side flow path 9 is opened and the hot water side flow path 8 is closed, and as a result, the temperature of the mixed hot water is lowered. The temperature of the mixed hot water is detected by the temperature detector 27 and compared with the hot water temperature setting device 28 by the hot water supply controller 13, and is calculated by the hot water supply controller 13 to control the current to the coil 12. In this way, the temperature of the mixed water is kept equal to the set temperature. The signal generator 29 continuously generates a steeply changing signal and irregularly changes the holding time at the maximum value and the minimum value.
The variable operating force generating means 10 is of an electromagnetic type and can adjust the hot water temperature at high speed. As a result, for example, as shown in FIG. 2, the hot water temperature changes one after another. In FIG. 2, the maximum value and minimum value of the hot water temperature are constant, but various changes can be achieved because the holding time is changed irregularly. FIG. 2 shows a rectangular waveform, but it may take some time to rise or fall depending on the heat capacity, but it may be within 1 second. Such a steep water temperature change and an unpredictable change provide a strong stimulus when the shower is used, and when this water temperature change is used for a shower, blood vessels are expanded or contracted to promote blood circulation. In this case, since the signal generator 29 only needs to be changed in time, it can be easily configured with a timer or the like.

[0010]

In the present invention, a hot water mixing device is shown as a means for controlling the hot water temperature, but a device for adjusting the heating amount of a heating device such as an instantaneous water heater may be used.

[0012]

As described above, according to the hot water supply control device of the present invention, the following effects can be obtained. (1) The hot water temperature was changed steeply, and the holding time at the maximum value and the minimum value was changed irregularly, so that a strong stimulus due to the steep change was obtained, and when used in a shower, blood circulation was promoted. And since it has irregularities rather than simple repetitions, it is possible to continuously obtain an unpredictable fresh stimulus without adaptation. Further, a complicated change can be easily made only by changing the holding time.

[0013]

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a first and second embodiments of a hot water supply control device of the present invention.

FIG. 2 is a graph showing a change in hot water temperature of the first embodiment of the apparatus.

FIG. 3 is a configuration diagram of a conventional hot water supply control device.

FIG. 4 is a graph showing a change in hot water temperature of a conventional hot water supply control device.

FIG. 5 is a graph showing a change in hot water temperature of a conventional hot water supply control device.

[Explanation of symbols]

 7 temperature controller 13 hot water supply controller 28 tap water temperature setting device 29 signal generator

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Bunichi Shiba 1006 Kazuma Kadoma, Kazuma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A-3-141410 (JP, A) JP-A Sho56 -72715 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) G05D 23/00-23/32

Claims (1)

(57) [Claims] 1. A tapping temperature setting device, a tapping temperature controller for controlling a tapping temperature, and a tapping temperature which continuously changes steeply and a holding time at a maximum value and a minimum value thereof varies irregularly. A hot water supply control device comprising: a signal generator to be sent to a setting device; and a hot water supply controller that adjusts hot water temperature in accordance with a signal from the tapping temperature setting device.