JP2707580B2 - Hot water temperature controller - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water temperature adjusting device for adjusting a temperature of a supplied hot water to supply the same.

2. Description of the Related Art Conventionally, this type of hot water temperature control apparatus has the one shown in FIG. In FIG. 13, in a valve frame 4 having a hot water inlet 1, a water inlet 2, and a mixed hot water outlet 3, a hot water side valve body 5 and water are provided. A side valve body 6 is provided. The hot water side valve element 5 and the water side valve element 6 are mounted on a shaft 7 and driven by a motor 10 via a linear motion conversion mechanism 8 and a gear 9 provided outside. Near the mixed hot water outlet 3 is a mixed hot water temperature detector 11 for detecting the mixed hot water temperature.
The controller 13 compares the hot water temperature value set by the hot water temperature setting device 12 with the hot water temperature value detected by the hot water temperature detector 11, and controls the motor 10. The terminal is provided with a faucet 14 for supplying mixed hot water. Then, when the faucet 14 is opened and the mixed hot water temperature setting device 12 is manually operated to set the mixed hot water temperature,
The controller 13 compares the value of the mixed hot water temperature detector 11 with the set value of the mixed hot water temperature setter 12, and controls the drive of the motor 10 so as to eliminate the temperature deviation between the two.

Problems to be Solved by the Invention However, the above configuration has the following problems.

(1) Although the temperature of the mixed hot water is adjusted to be constant according to the setting of the setting device 12 for the mixed hot water, the mixed hot water could not be supplied while being varied.

(2) Even if the mixed hot water temperature setting device 12 is artificially operated to change the mixed hot water temperature, the operation is troublesome and it is difficult to create a comfortable state.

The present invention solves such a problem in the related art. By automatically changing the supply hot water temperature and controlling the temperature width and the time width, a fluctuating shower water supply or a cold / hot water shower that is comfortable for the human body. It aims to realize hot water supply.

Means for Solving the Problems In order to solve the above problems, a hot water temperature adjusting device of the present invention instructs a hot water temperature adjusting device and a change of the hot water temperature adjusted by the hot water temperature adjusting device. A fluctuation setting device, a temperature width adjusting means for adjusting a fluctuation temperature width of the hot water temperature, a time width adjusting means for adjusting a fluctuation time width of the hot water temperature, and a condition setting means for adjusting a combination of the fluctuation temperature width and the fluctuation time width. And control means for performing control to change the combination of the fluctuation temperature width and the fluctuation time width of the condition setting means according to the air temperature, or control to change the combination of the fluctuation temperature width and the fluctuation time width of the condition setting means according to the water temperature It comprises a control means.

Effect of the Invention With the above configuration, the present invention allows the temperature of the hot water supplied from the hot water temperature adjusting means to fluctuate in accordance with the instruction of the fluctuation setter, and optimizes the temperature fluctuation width and time fluctuation width based on the instruction of the condition setting unit. Combined supply provides comfortable fluctuation showers and cold / hot water showers for the human body.Especially, by changing the combination of the fluctuating temperature range and the fluctuating time range according to the temperature or water temperature, the comfort varies depending on the season. It realizes temperature fluctuation hot water supply according to the senses.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, a hot water supply pipe 15 and a water supply pipe 16 from a water heater 14 are connected to a mixing unit 17, and hot water whose temperature has been adjusted by the mixing unit 17 is supplied from a curran 18 or a shower 19. The mixing unit 17 has a built-in valve unit 20 and control unit 21, and is in signal communication with the setting unit 22, the temperature sensor 23, and the water heater 14. Mixing unit 17, Karan 18, Shower 19, Temperature sensor 23 are integrated shower unit
It is configured as 24 and mounted on the bathroom wall 25. The valve section 20 is configured as shown in FIG. Hot water and water supplied from the hot water supply pipe 15 and the water supply pipe 16 are supplied to the check valve section.
After passing through 25 and 26, it enters the pressure balance valve 27. The pressure of the hot water and the water is made equal by the pressure balance valve 27, and the ratio of the hot water and the water is adjusted by the mixing valve 28. The temperature of the mixed hot water is detected by the thermistor 29 and compared with the signal of the setter 22, and the ratio of the mixing valve 28 is corrected by the stepping motor 30. The mixed flow rate detected by the flow rate sensor 31 is compared with the set value of the setting device 22, and the flow rate is adjusted by the flow regulating water switching valve 32. The flow regulating water switching valve 32 is
It is driven by a DC motor 33, and in addition to adjusting the flow rate, stops water and switches the path to the shower 19 side or the curran 18 side. The path to the shower 19 is provided with a temperature safety valve 34 for preventing hot water from being supplied in the event of a failure.

The setting device 22 is configured as shown in FIG. Curan switch 35 for setting hot water to the Karan 18 and stop, shower switch 36 for hot water to the shower 19 and stop,
Fluctuation switch 37 to start fluctuation, flow control switch
38, temperature control switches 39 and 40, a waveform switch 41 for switching the temperature change waveform during fluctuation operation, and an automatic changeover switch 42 for selecting whether to automatically perform the combination of the temperature width and the time width or manually. I have. Further, a temperature width volume 43, a time width volume 44, a temperature display section 45, and the like for manually setting the temperature width and the time width of the fluctuation are provided.

 FIG. 4 shows a control block diagram.

The flow control water shutoff switching valve 32 is opened and closed by the signals of the Karan switch 35 and the shower switch 36 to instruct start and stop of hot water supply and switching of hot water supply path. Meanwhile, callan switch
The signals of the shower switch 35 and the shower switch 36 enter the preset section 46, and the preset values of temperature and flow rate corresponding to each hot water supply target are extracted. Normally, when the fluctuation switch 37 is not depressed, steady state control is performed, and the temperature of the preset signal 46 and the temperature detected by the thermistor 29 are compared by the signal from the preset unit 46 by the temperature comparing unit 47, and the optimum temperature is controlled. Is adjusted in the mixing valve section 28 (30) to obtain the mixing ratio. Similarly, the flow rates are compared in the flow rate comparison section 48, and the flow control water switching valve section 32
(33) is adjusted. When the fluctuation switch 37 is pressed while the shower switch 36 is turned on, the temperature set by the temperature width volume 43 and the time set by the time width volume 44 are set with the temperature set by the preset unit 46 as an upper limit. The temperature of the mixed water fluctuates with the width. This is an automatic changeover switch
When the switch 42 is turned off, the switch 42 operates according to the signal of the thermistor 29 and the signal of the temperature sensor 23 when the switch 42 is turned on. The combination of the temperature range and the time range during automatic operation is performed by the condition setting section 49.

 Next, the operation of this embodiment will be described.

When the curan switch 35 is pressed, hot water supply is started from the curan 18, and hot water is supplied at the mixed hot water temperature and mixing flow rate set by the preset unit 46. Pressing the curan switch 35 again stops the hot water supply.

When the shower switch 36 is pressed, the hot water is supplied at the hot water temperature and the flow rate when set in the preset section 46. When the fluctuation switch 37 is pressed during the shower hot water supply, the hot water supply with the temperature loosened is performed. The waveform switch 41 controls the cycle side,
When the automatic changeover switch 42 is set to the manual side,
Temperature fluctuations are performed as compared with FIG. 5 and FIG. From the state shown in Fig. 5 (a), the temperature range volume
If 43 is set to a larger value, the temperature range becomes larger as shown in (b). When the time width volume 44 is set to a larger value from the state shown in FIG. 6A, the cycle time becomes longer as shown in FIG. FIG. 7 shows the operation when the waveform switch 41 selects the cycle side and the automatic changeover switch 42 selects the automatic side. According to the signal from the temperature sensor 23, in winter when the temperature is low, the temperature of the mixed hot water fluctuates in a small temperature range as shown in FIG. (B) is fluctuated with a large temperature range and a long cycle as shown in (b), and is designed so that a user can sufficiently sense from an appropriate temperature to a low temperature. FIG. 8 and FIG. 9 show the operation at the start of the fluctuation hot water supply. At the start of the fluctuation hot water supply, the cycle is shortened or the temperature width is set small so that a sudden temperature change is not felt physically. , And expresses a state in which it is controlled to gradually change. FIG. 10 shows a form when the waveform changeover switch 41 selects 1 / f fluctuation, and the temperature changes irregularly. 1 /
f The fluctuation is the same as the cycle fluctuation.
When the automatic side is selected in 2, the cycle and amplitude of the waveform are automatically changed. The combination of the temperature width and the time width is performed by the condition setting unit 49. A signal is input to the condition setting unit 49 via the automatic changeover switch 42. When the automatic changeover switch 42 is selected on the manual side, only the signals of the temperature width volume 43 and the time width volume 44 are transmitted to the condition setting section 49. When the automatic side is selected, signals of the temperature width volume 43, the time width volume 44, the temperature sensor 23, and the thermistor 29 are transmitted to the condition setting unit 49. Normally, the temperature range of the fluctuation and the time range are combined under the optimum conditions by the signal of the temperature sensor 23, but if the temperature sensor 23 fails, the signal of the thermistor 29 is substituted. The signal from the thermistor 29 is used to store the value at the time when the use of water is instructed by the setter 22 and water is supplied, and to take out the value when necessary.

The upper limit temperature of the fluctuation normally follows the value of the preset section 46 corresponding to the shower switch 36, but the temperature control switch
When a change is made in steps 39 and 40, the changed value becomes the upper limit temperature.

Then, the set value of the temperature width volume 43 becomes the lower limit temperature in the manual fluctuation operation and the maximum lower limit temperature in the automatic operation. Similarly, the time width volume 44 sets the time width during the manual fluctuation operation and sets the maximum time width during the automatic fluctuation operation. Accordingly, the condition setting unit 49 determines the temperature fluctuation during automatic operation based on the temperature width volume 43, the time width volume 44, the preset temperature or the changed value, and the signal of the air temperature sensor 23, and is complemented by the thermistor signal 29. . When the fluctuation switch 37 is pressed again during use, the state returns to a steady and stable state of the hot water temperature, and when the shower switch 36 is pressed, the hot water supply is stopped. Even if the shower switch 36 is pressed again during the fluctuation hot water supply, the hot water supply can be similarly stopped. The method of transition from the steady hot water supply state to the fluctuation hot water supply
As shown in FIG. 12 and FIG. 12, there are two methods. The method shown in FIG. 11 is a method of immediately starting the fluctuation operation or stopping the fluctuation operation when an instruction to start or stop the fluctuation is issued. FIG. 12 shows a method of once starting the fluctuation operation after the preset temperature is reached, and stopping after returning to the preset temperature. In the case of this embodiment, in the case of manual operation,
The method shown in FIG. 11 is used, and the method shown in FIG. 12 is used for automatic operation.

The signal is output from the condition setting unit 49 to the temperature comparison unit 47 by a method in which the set temperature is replaced at two positions when the waveform switch 37 selects the cycle side. This is, for example, a method in which two set values such as 40 ° C. and 35 ° C. are replaced with a predetermined time interval, and a temperature change between 40 ° C. and 35 ° C. is operated by an operation corresponding to a set temperature change of the mixing valve 28. It is. When the waveform switch 37 selects the 1 / f fluctuation side, this set temperature is stored in the condition setting section.
It is continuously changed according to the table.

The signal from the temperature sensor 23 is used not only for fluctuation hot water supply, but also when the outside temperature drops and there is a possibility of freezing when the hot water supply is not used in winter, the flow regulating water switching valve is compulsorily used. It is also used to open 32 and pour a certain amount of hot water to prevent freezing.

Effects of the Invention As described above, according to the present invention, the following effects can be obtained.

(1) Condition setting means for adjusting the combination of the fluctuation temperature width of the temperature width adjustment means and the fluctuation time width of the time width adjustment means, and changing the combination of the fluctuation temperature width and the fluctuation time width of the condition setting means according to the temperature. Since the control means for performing the control is provided, a temperature-variable hot water supply suitable for a sense of comfort that varies depending on the season can be realized by correcting the temperature based on the air temperature.

(2) Condition setting means for adjusting the combination of the fluctuation temperature width of the temperature width adjustment means and the fluctuation time width of the time width adjustment means, and changing the combination of the fluctuation temperature width and the fluctuation time width of the condition setting means according to the water temperature. Since the control means for performing the control is provided, a temperature-variable hot water supply suitable for a sense of comfort that varies depending on the season can be realized by correcting the temperature based on the water temperature.

[Brief description of the drawings]

FIG. 1 is a diagram of a hot water supply system using a hot water temperature control device in one embodiment of the present invention, FIG. 2 is a cutaway sectional view of a mixing valve unit of the hot water temperature control device, and FIG. FIG. 4 is a control block diagram of the apparatus, FIGS. 5 to 12 are explanatory diagrams of control characteristics of the apparatus, and FIG. 13 is a configuration diagram of a conventional hot water temperature control apparatus. 17: Mixing unit (hot water temperature adjusting means), 18: Karan (hot water supply target), 19 ... shower (hot water supply target), 22 ... setting device (variable setting device), 23 ... temperature sensor (condition setting device) ), 43 ... Temperature width volume (temperature width adjustment means), 44
... Time width volume (time width adjusting means), 49 .. Condition setting section (condition setting means).

Claims (2)

(57) [Claims] 1. A hot water temperature adjusting means for adjusting a hot water temperature supplied to a hot water supply object, a fluctuation setting device for instructing to change the hot water temperature adjusted by the hot water adjusting means, and a hot water temperature adjusting means. Temperature width adjusting means for adjusting the fluctuation temperature width of the supplied hot water temperature, and time width adjusting means for adjusting the fluctuation time width of the hot water temperature,
Condition setting means for adjusting the combination of the fluctuation temperature width of the temperature width adjustment means and the fluctuation time width of the time width adjustment means; and control for changing the combination of the fluctuation temperature width and the fluctuation time width of the condition setting means according to the temperature. Hot water temperature control device provided with control means for performing 2. A hot water temperature adjusting means for adjusting a hot water temperature supplied to a hot water supply object, a fluctuation setting device for instructing to change the hot water temperature adjusted by the hot water temperature adjusting means, and Temperature width adjusting means for adjusting the fluctuation temperature width of the supplied hot water temperature, and time width adjusting means for adjusting the fluctuation time width of the hot water temperature,
Condition setting means for adjusting the combination of the fluctuation temperature width of the temperature width adjustment means and the fluctuation time width of the time width adjustment means; and control for changing the combination of the fluctuation temperature width and the fluctuation time width of the condition setting means according to the water temperature. Hot water temperature control device provided with control means for performing