JPH0677223B2 - Spouting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a shower device such as a shower device or a local cleaning device for ejecting washing water onto a human body, or an ejecting device for ejecting water on an injured part to assist treatment of an injured part. More specifically, the present invention relates to one useful for applications in which the tapping temperature is alternately changed between a high temperature side and a low temperature side and high responsiveness and accuracy are required for the temperature change.

(Prior Art) At the beginning, when the flow rate of hot water changed, the tapping temperature also changed.

As a means for solving such a problem, Japanese Patent Laid-Open No. 57-5921
There is a mixing valve device proposed in Japanese Patent No.

This device is provided with a valve in the middle of the water flow path and the hot water flow path, respectively, so that the opening ratio of both valves can be adjusted by the drive unit and the temperature of the mixed water is detected by the temperature sensor in the mixed water flow path. The control unit that sends an actuation signal to the drive unit in response to this detection signal maintains the fluid pressure on the tapping side constant regardless of the pressure fluctuation on the feed side, and the tapping flow rate changes as well as the pressure fluctuation on the feed side. Even so, the tapping temperature can be kept almost constant.

On the other hand, there is a water heater temperature control device proposed in Japanese Patent Application Laid-Open No. 56-68720 for pulsating while keeping the average temperature of the hot water discharge constant.

In this temperature control device, a proportional control valve for controlling fuel is arranged in a passage for supplying fuel to a burner of a heat exchanger, and the proportional control valve is driven by a control circuit unit that responds to a signal from a temperature sensor. By periodically increasing or decreasing the fuel supply amount to the burner, the hot water outlet temperature can be changed periodically.

According to such a temperature control device, it can be expected that a massage-like effect can be obtained by a stimulus due to a change in hot water temperature.

Focusing on this massage-like effect, it is considered that the sharpness of the change in the bath temperature, that is, the responsiveness and the accuracy of the change temperature are important.

In this respect, since the temperature control device is configured to change the hot water temperature by increasing or decreasing the burner combustion amount, the responsiveness of the hot water temperature change is slow and the change temperature is low. Has a problem that the so-called accuracy is low and so-called sharpness is poor.

Therefore, in order to obtain an excellent change in hot water temperature, for example, it is conceivable to combine the contents disclosed in the mixing valve device and the temperature control device.

However, the mixing valve device is intended to stabilize the outlet heated water temperature at a constant temperature, and the temperature control device is intended to positively change the outlet heated water temperature, which are mutually exclusive.

In addition, what is constituted by the contents of both devices is that the average temperature of the hot water temperature is stabilized at a constant temperature by adjusting the opening ratio of the water valve and the hot water valve. Since it is performed by increasing / decreasing the combustion amount, problems still remain in the responsiveness of changes in the hot water temperature and the accuracy of the changing temperature, and in the end it is not possible to obtain sharp changes in the hot water temperature.

(Problems to be Solved by the Invention) An object of the present invention is to alter the opening ratio of the water valve and the hot water valve alternately to the high temperature side and the low temperature side, and to respond and change the hot water temperature. It is to provide a product with excellent sharpness that has excellent temperature accuracy.

(Means for Solving Problems) In order to solve the above problems at once, the present invention converts the basic configuration of the mixed water temperature into an electric signal with a temperature sensor, Based on the above, the control unit operates the drive unit to periodically and alternately adjust the opening ratio of the water valve and / or the hot water valve to the opening ratio of the high-side set temperature and the opening ratio of the low-side set temperature. However, the mixed water having both high and low set temperatures can be automatically discharged periodically and alternately from the jet portion.

More specifically, a water valve is provided in the middle of the water flow path, and a hot water valve is provided in the middle of the hot water flow path. The water valve and / or the hot water valve is connected to a drive unit capable of changing the opening ratio of both valves, The temperature sensor is installed in the mixed water flow path that connects the water passage and the hot water flow path to the jetting part, and the signal from the temperature sensor is compared with both high and low set temperatures to open the water valve and hot water valve. The control unit that periodically sends an operation signal for adjusting the ratio to the opening ratio of the high-side set temperature and an operation signal for adjusting the opening ratio of the low-side set temperature to the drive unit to control the operation. It is characterized in that it is configured to have.

Further, the drive unit of the present invention will be described in detail. The drive unit is a drive unit dedicated to each of the water valve and the hot water valve, or a drive unit provided to both the water valve and the hot water valve. And a drive unit provided for the water valve or the hot water valve.

The control unit receives an electrical signal from the temperature sensor and sends an operation signal to the drive unit to control the operation of the drive unit and also send operation signals for both high and low set temperatures to the drive unit to control the operation, and High and low temperature settings and / or water supply
It is a control unit that sends an operation signal for water stoppage and water supply to the drive unit to control the operation, or sends an operation signal to the drive unit by receiving an electric signal from the temperature sensor and controls the operation of the drive unit. It is a control unit that sends operation signals for both high and low set temperatures to the drive unit to control the operation.

(Function) The temperature sensor responds to the temperature of the mixed water that passes through the mixed water flow path, converts the sensed temperature into an electric signal, and the control unit that receives this electric signal performs the required operation in comparison with both high and low set temperatures. A signal is sent to the drive unit, and the drive unit periodically and automatically adjusts the opening ratio between the water valve and the hot water valve to the opening ratio at the high-side set temperature and the opening ratio at the low-side set temperature, The mixed water having both high and low set temperatures is periodically and alternately discharged from the jet portion.

(Examples) Examples of the present invention will be described below.

FIG. 1 shows the basic structure of the present invention.
Is a drive unit having a water valve 2 in the middle of the water passage 1 and a hot water valve 4 in the middle of the hot water passage 3 and a motor having a variable opening ratio of the water valve 2 and the hot water valve 4. 5 is connected to the water flow path 1 and the hot water flow path 3 and to the mixed water flow path 7 reaching the jetting portion 10, the temperature is sensitive to the mixed water temperature in the path and the sensed temperature is converted into an electric signal. A sensor 8 is provided, and the temperature sensor 8 is compared with a drive unit 5 and an electric signal received from the temperature sensor 8 is compared with high and low set temperatures to set a high opening ratio of the water valve 2 and the hot water valve 4. An operation signal for adjusting the opening ratio of the temperature and an operation signal for adjusting the opening ratio of the low set temperature are periodically and alternately sent to the drive unit 5 to communicate with each other by the control unit 9.

2 to 4 show a specific embodiment.

A water valve 2 is provided in the middle of the water flow path ₁ of the valve body A ₁ , and a hot water valve 4 is provided in the middle of the hot water flow path 3 so as to be rotatable about vertical rotation axes. A rotary shaft 11 of a drive unit 5 is connected to the upper end shaft portion of the valve 4 so as to rotate integrally, and the water valve 2 is driven by the dedicated drive unit 5 to rotate in the forward and reverse directions to generate a mixed water flow. The opening ratio of the cutout 12 to the valve seat hole 13 on the passage 7 side can be increased / decreased, and similarly, the hot water valve 4 is rotated in the forward and reverse directions by being driven by the dedicated drive unit 5, and the valve on the mixed water flow passage 7 side is rotated. Seat hole
It is possible to increase or decrease the opening ratio of the cutout 14 with respect to 15.

The drive unit 5 rotates the drive force of the motor 6 through a speed reduction element
Then, the driving unit 5 regulates the rotational directions of the water valve 2 and the hot water valve 4 so that the opening ratios of both valves do not increase or decrease at the same time, while the opening ratio of the other increases. Alternatively, it is controlled so as to decrease, and the opening ratio of both valves is adjusted so that the ratio of water to hot water reaching the mixed water flow path 7, that is, the mixed water temperature can be adjusted to a high-side set temperature and a low-side set temperature. There is.

A temperature sensitive sensor 8 is provided in the middle of the mixed water flow path 7 reaching the ejection part 10. The temperature sensitive sensor 8 is sensitive to the temperature of the mixed water passing through the flow path 7 and converts the sensed temperature into an electric signal. In addition, the control unit 9 is connected and connected so that the same electric signal can be sent to the control unit 9.

The control unit 9 is connected to and connected to the drive units 5 and 5, and the control unit 9 receives an electric signal from the temperature sensor 8 and compares the set temperature of high and low with the water valve 2 and the hot water. The opening ratio of the valve 4 is
An operation signal for adjusting the opening ratio of the high-side set temperature and an operation signal for adjusting the opening ratio of the low-side set temperature are periodically and alternately sent to the drive unit, and the water valve 2 and the hot water are supplied through both drive units 5. The opening ratio of the valve 4 is periodically and alternately adjusted to the opening ratio of both the high and low set temperatures, and the mixed water temperature reaching the jetting portion 10 is the mixed water of the high side set temperature and the mixed water of the low side temperature. The automatic control can be performed periodically and alternately.

Further, the control unit 9 sends an operation signal corresponding to both the high and low set temperatures that can be electrically set to both drive units 5, and through the both drive units 5, the water valve 2 and the hot water valve 4 The opening ratio of each of the two can be adjusted to a required opening ratio, and an operation signal for the set cycle is sent to both drive units 5 in accordance with the set cycle that can be set electrically. Through the drive unit 5, the intermittent stop time of the water valve 2 and the hot water valve 4 can be adjusted to the required intermittent stop time, and actuation signals for water supply / stopping and water supply amount are supplied to both drive units 5. Send,
The water valve 2 and the hot water valve 4 can be opened / closed and controlled to a desired degree of opening through both drive units 5.

To set the temperature of the high and low temperatures of the mixed water in the control unit 9, set the cycle of the discharge cycle, and operate the water supply / stopping and the water supply, turn the adjustment dial or press the numerical value digitally displayed. By touching with,
It can be freely set, changed and processed.

As a result, the hot water and the cold water are discharged from the jetting unit 10 while being alternately temperature-controlled to the set temperature cyclically according to the set cycle, and both the high and low temperature settings and the water supply / stop water supply and the water supply amount are pushed. It can be controlled by touching a button or the like.

In this embodiment, an example of control by the control unit 9 will be described.

FIG. 5 shows the operation flowchart, and FIG. 6 shows the jet water temperature control performance, and the temperature control is performed as shown in the operation flowchart.

When the jetting starts, the water valve 2 rotates in the forward direction to sequentially increase the opening ratio with respect to the hot water valve 4 to decrease the mixed water temperature T 2. The temperature sensor 8 continues to respond to this decreasing mixed water temperature, converts the sensed temperature into an electric signal and sends it to the control unit 9, which then sets the low side set temperature T _S1 and the mixed water temperature T _S1.
M is compared, and when the mixed water temperature T _M is higher than the set temperature T _S1 , the opening ratio of the water valve 2 is further increased to lower the mixed water temperature, and the mixed water temperature T _M is set to the set temperature T _S1 . When the temperature becomes the same or lower, the water valve 2 is immediately stopped, the opening ratio of the water valve 2 to the hot water valve 4 is fixed for several seconds of the set time, and during the fixed time, the low side set temperature T _S1 is kept at the same temperature. The mixed water is discharged from the ejection unit 10.

Then, after the fixed time at the low-side set temperature T _S1 has elapsed, the water valve 2 reversely rotates and the opening ratio to the hot water valve 4 is gradually decreased to increase the mixed water temperature T _M. Temperature-sensitive sensor 8 in a mixed water temperature during the rise continues sensitive compared to high side set temperature T _S2 at the control unit 9 and the temperature rises and gradually mixed water temperature T _M, mixed water temperature T _M is set When the temperature is lower than the temperature T _S2, the opening ratio of the water valve 2 is further reduced to raise the mixed water temperature, and when the mixed water temperature T _M becomes equal to or higher than the set temperature T _S2 , the water valve 2 is immediately stopped. Then, the opening ratio of the water valve 2 with respect to the temperature 4 is fixed for several seconds of the set time, and the mixed water having the same temperature as the high-side set temperature T _S2 is discharged from the ejection unit 10 during this fixed time.

Then, after the fixed time at the high-side set temperature T _S2 has elapsed, the water valve 2 again rotates in the forward direction, and the mixed water is discharged at the low-side set temperature T _S1 , which is periodically repeated alternately. Then, the mixed water having the low-side set temperature T _{S1 and} the mixed water having the high-side set temperature T _S2 are periodically and continuously discharged from the ejection unit 10 alternately.

In this control example, as shown in the graph showing the temperature control performance of FIG. 6, the mixed water discharged from the jetting unit 10 has the low-side set temperature T
_S1 or 25 ° C. mixed water temperature a and high side set temperature T _S2 or 40 ° C. mixed water temperature b are cyclically changed and controlled alternately, and hot water of 40 ° C. and cold water of 25 ° C. are ejected from the jetting section 10. And are periodically and alternately discharged.

As another embodiment, in the above embodiment, the control unit 9
The control of the opening ratio of the water valve 2 and the hot water valve 4 through the both drive units 5 by simultaneously rotating both valves in opposite directions to make the opening ratio inversely proportional, thereby switching between hot water and cold water. It is possible to reduce the time. In this case, the drive unit 5 can control the rotation of the water valve 2 and the hot water valve 4 by one drive unit.

Further, the setting of both the high and low set temperatures and the operation / adjustment of the water supply / stopping and the water supply amount can be performed by operating the lever or the handle as in the conventional product.
For example, both the high and low set temperatures can be set by operating the lever or the handle by connecting the lever or the handle to the rotary shaft 11 directly or via a transmission element.

As another embodiment, only one of the water valve 2 and the hot water valve 4 is controlled by the temperature sensor 8, the control unit 9, and the drive unit 5,
With the water valve 2 or the hot water valve 4 operated by the lever or the handle fixed, it is also possible to periodically and automatically discharge the mixed water of both the high and low set temperatures.

(Effects of the Invention) As a shower jet device, since it has excellent responsiveness to changes in hot water temperature and high accuracy in changing temperature of hot water, it has good sharpness. Cyclic with the most common low-temperature water heaters (solar heat, oil, electricity, etc.), including existing instantaneous water heaters where cold water is jetted out and temperature control is almost impossible at low temperature hot water You can change the hot water temperature.

Since the change in hot water temperature is good, it is possible to automatically and automatically discharge hot water while controlling the temperature according to the high and low set temperatures, and accordingly, the hot or cold water temperature can be obtained as expected based on the high and low set temperatures. The hot water having a temperature higher than the set temperature on the high temperature side does not squirt and there is no fear of burns, and the cold water having a temperature lower than the set temperature on the low temperature side does not squirt, which does not impose a burden on the heart and is excellent in safety.

Since the control unit is electrically connected to the temperature sensor and the drive unit, there is no problem even if only the control unit is moved to a remote position, and it is possible to meet the request for remote operation.

Therefore, according to the present invention, hot water and cold water periodically and alternately ejected from the jetting portion stimulate the skin of the human body to improve blood circulation (massage effect) and strengthen the skin. While bathing and washing your body,
It is possible to obtain the same effect at the same time, and it is useful for preventing and treating hemorrhoids and assisting treatment of an injured site by local cleaning because of its particular effect.

[Brief description of drawings]

FIG. 1 is a block diagram showing the basic operation principle of the ejection device of the present invention. FIG. 2 is a front view showing an embodiment of the present invention with a part cut away. FIG. 3 is a vertical sectional side view along the line III-III. FIG. 4 is a partially enlarged transverse plan view along the line IV-IV. FIG. 5 is an operation flowchart, and FIG. 6 is a graph showing the temperature control performance. In the figure, 1 is a water flow path, 2 is a water valve 3, 3 is a hot water flow path, 4 is a hot water valve, 5 is a drive unit, 6 is a motor, 7 is a mixed water flow path, 8 is a temperature sensor, 9 is a control unit, and 10 is a jetting unit.

Front page continuation (72) Inventor Hirohiko Yasuda 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka Toko Kikai Co., Ltd. (56) Reference JP-A-54-94121 (JP, A) JP-A-SHO 57-52731 (JP, A) JP-A-59-179943 (JP, A)

Claims (1)

[Claims] 1. A water valve is provided in the middle of the water flow path, and a hot water valve is provided in the middle of the hot water flow path, and a drive unit capable of varying the opening ratio of both valves is connected to the water valve and / or the hot water valve. A temperature sensor is provided in the mixed water flow path that connects the water flow path and the hot water flow path and reaches the ejection part, and compares the signal from the temperature sensor with both high and low set temperatures to open the water valve and hot water valve. A control unit capable of cyclically sending an operation signal for adjusting the opening ratio of the high side set temperature and an operation signal for adjusting the opening ratio of the low side set temperature to the drive unit to control the operation. A jetting device comprising: