JPS621015A - Hot and cold water mixing device - Google Patents

Abstract

PURPOSE:To control easily both the temperature and the flow rate of the hot/ cold mixture water by controlling the drive of the rotary and sliding electric drive means based on the signal of a setter as well as the signals of the temperature and flow rate detectors for hot/cold mixture water. CONSTITUTION:When a switch is pushed, a sliding motor 43 is driven with control by a prescribed amount. Then a flat plate 29 is slided via an action arm 38 up to a position where a prescribed flow rate is secured based on the signal of a flow rate detector 47. When both hot and cold water are supplied, the temperature of this hot/cold mixture water is detected by a temperature detector 47 and fed back to a controller. Then the fetched signal is compared with the signal of a setter and the plate 29 is turned via a rotary motor 45 in a ratio where a desired temperature is obtained for the hot/cold mixture water. When the flow rate of the mixture water is increased, the motor 45 is not actuated and only the motor 43 is driven.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a hot water mixing device for supplying hot water to obtain a suitable temperature by mixing hot water and water.

2. Description of the Related Art Conventionally, there has been a hot water mixing device of this type as shown in FIG. (For example, Japanese Utility Model Publication No. 55-59223) In FIG. A side valve body 6 is provided. The hot water side valve body 5 and the water side valve body 6 are connected to the shaft 7
The motor 10 drives the motor 10 via an external linear motion conversion mechanism 8 and gears 9. Near the mixed water outlet 3, there is a mixed water temperature detector 1 that detects the mixed water temperature.
A controller 13 compares the mixed hot water temperature value set by the mixed hot water temperature setting device 12 and the hot water temperature value detected by the mixed hot water temperature detector 11, and controls the motor 10. A faucet 14 for supplying mixed hot water is provided at the terminal. and faucet 14
When the mixed water temperature is set by manually operating the mixed water mL setting device 12, the controller 13 compares the value of the mixed water temperature detector 11 with the set value of the mixed water temperature, and calculates the temperature deviation between the two. The drive of the motor 10 is controlled so as to eliminate the problem.

Problems to be Solved by the Invention (1) When supplying hot water, it is necessary to operate the faucet 14 in addition to operating the mixed hot water temperature setting device 12, which is not only difficult to operate but also takes time.

(21) In addition to a valve body for fully adjusting the mixed water temperature as a hot water mixing device, a faucet was required to adjust the flow rate.

(3) Remote control operation for flow rate adjustment was not possible.

SUMMARY OF THE INVENTION The present invention has been made to solve these conventional problems, and an object of the present invention is to provide a hot water mixing device in which the temperature and flow rate of mixed water are adjusted using a valve body that also functions as an electric driving means. - Means for solving the problems In order to solve the above problems, the hot water mixing device of the present invention has the following features:
A mixing/flow control valve that adjusts the mixing ratio and flow rate of hot water and water by rotating and sliding the valve body, an electrical drive means for rotation that fully rotates the valve body, and an electric drive means for sliding that makes the valve body slide. A driving means, a mixed hot water temperature detector that detects the temperature of the mixed hot water mixed by the mixing/flow control valve, a flow rate detector that detects the flow rate of the mixed hot water, the mixed hot water temperature, the mixed flow rate, and the integrated value of the mixed flow rate. a setting device for setting one or both of the above, and a setting device for driving the rotation electric drive means and the sliding electric drive means based on the signal of the setting device and the signals of the mixed water temperature sensor and the flow rate sensor. It is equipped with a controller for controlling.

Function The present invention has the above-described configuration, and by instructing the mixing water temperature, mixing flow rate, and integrated value of the mixing flow rate using the setting device,
The controller compares the signal from the setting device with the signals from the mixing water temperature sensor and flow rate detector, and drives and controls the electric drive means for rotation and the electric drive means for sliding, and mixes based on the settings on the setting device. It is obtained from the integrated value of hot water temperature, mixing flow rate, and mixing flow rate.

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

FIG. 1 shows a hot water mixing device according to an embodiment of the present invention installed in a hot water supply route. Hot water is supplied from a water heater 15 through a hot water supply pipe 16, and is sent from a water supply pipe 17. The incoming water is mixed with the hot water mixing bag @18. Inside the main unit 19, there is a controller 20 in addition to a valve section which will be described in detail later.
is built-in. A hot water supply port 21 is attached to the main unit 19, and hot water is supplied to a hot water supply target 22. A setting device 23 is wired to the main unit 19 as a remote control. FIG. 2 shows details of the valve section. A cylindrical body 25 is positioned and attached to the valve frame body 24 by a projection 26, and is sealed with a gasket 27, 27 or the like. Inside the cylindrical body 25, there are a flat plate I28 and a flat plate 11 made of ceramic for the purpose of corrosion resistance and scale resistance.
29 are provided one on top of the other. The flat plate I28 and the flat plate 29 are constructed as shown in FIG. Flat plate I
28 includes a vortex flow path 30, a water flow path 31, and a mixing vortex flow path 32.
is provided through it. Further, grooves 33, 33' and 33'' for attachment to the cylinder body 25 are provided around the periphery.The flat plate [29 is provided with an operating hole 34 and an anti-slopping groove 35, and the bottom surface is shown in Figure b. As shown, it has a plane part 36 that closes the flow path between the hot water and the water, and a groove part 37 that communicates the flow path of the mixed hot water with both or one of the hot water and the water.Returning to FIG. 2 again,
A spherical tip of an actuating arm 38 is fitted into the actuating hole 34 of the flat plate [29. There is. The shaft 39 has an upper lid 40 fixed to the cylindrical body 25.
It is fixed to a rotary cylinder 41 which is rotatably provided.

For the purpose of simplifying the configuration and ensuring operation, a sliding motor 43, which is an electric driving means for sliding, is fixedly provided on the rotating cylinder 41 through a gear box 42, and a linear movement converting mechanism 44 converts linear movement. , and one end of the actuating arm 38 is driven left and right in the figure. A rotation motor 45, which is an electric rotation drive means, is fixedly provided on the upper part of the cylindrical body 25 via a gear box, and drives the rotation cylinder 41 in all forward and reverse directions with an output shaft. Due to the rotation of the rotary tube 41,
The flat plate I29 and the sliding motor 43 are rotated. Here, the rotation motor 45 adjusts the mixing ratio of hot water, and the sliding motor 43 adjusts the flow rate of the mixed hot water. Note that the mixed water temperature is detected by a mixed water temperature detector 46. Further, the mixed flow rate is detected by a flow rate detector 47.

The configuration of the control system for adjusting the mixed hot water temperature is configured as shown in the control block diagram of FIG. 4.

The signal from the setting device 23 is compared with the signals from the mixed water temperature detector 46 and the flow rate detector 47 inside the controller 20, and is operationally amplified by the adjustment section 4.

The rotation motor 45 and the sliding motor 43 are driven and controlled by the signal output from the controller 20i, and the mixing ratio and mixing flow rate are adjusted by the valve body 49 (28, 29). The mixed water temperature is detected by a mixed water temperature detector 46, and the mixed flow rate is detected by a flow rate detector 47 and fed back. In addition, as shown in FIG.
A switch 50 that simultaneously indicates "suitable temperature". A switch 51 is provided which simultaneously indicates the flow rate "Multi-J1 mixed hot water temperature" and "appropriate temperature" and also indicates the cumulative flow rate, and is configured so that the flow rate value, mixed hot water temperature, and cumulative flow rate value can be set in advance. Further, the setting device 23 is provided with a switch 52 for instructing to raise the mixed water temperature in a slap manner depending on the number of times the temperature is pressed, a switch 52 for instructing to decrease the temperature, a display section 54 for displaying the mixed water temperature, and a stop switch 55 for stopping hot water supply. There is.

To describe the operation of this embodiment, when the switch 50 of the setting device 23 is pressed, this switch/d a it "low"
, corresponds to the mixed water temperature "appropriate temperature", so the controller 20 drives and controls the sliding motor 4a by a preset amount, and moves the flat plate (■) via the actuating arm a8 by the amount set by the setting device 23. It is slid based on the signal from the flow rate detector 47 to a position where a predetermined flow rate is obtained. When the hot water and water begin to flow, the mixed water temperature is detected by the mixed water temperature detector 47 and fed back to the controller 20. The captured signal is compared with the signal from the setting device 2a, and the flat plate r129 is rotated via the rotation motor 46 at a ratio that provides the set mixed water temperature. If you want to raise or lower the mixed water temperature, you can fine-tune the mixed water temperature by pressing switch 52 or 53. It is also possible to dispense hot water only or water only. If the switch 51 is pressed here, only the flow rate increases while the mixed water temperature remains the same. At this time, the rotation motor 45 does not rotate and only the sliding motor 43 operates. Also switch 5
From the moment 1 is pressed, flow rate integration is performed inside the controller 20, and when a preset integrated value is reached, the sliding motor 4a is driven and the supply of mixed hot water is stopped. Note that to stop the normal hot water supply, by pressing the stop switch 55, the sliding motor 43 is activated and the supply of mixed hot water is stopped. At the time of stopping, the flow rate detector 47 is used, and the sliding motor 43 stops operating when the signal becomes equal to or less than a predetermined value.

This fL prevents an operation in which the sliding motor 43 continues to rotate even after the flow has stopped and stops when it comes into contact with a position detection switch at a position well past the opening point, and prevents the supply of mixed hot water when re-dispensing hot water. M! This is to speed up the process. In addition, since the hot water mixing device of this example can be electrically controlled,
Timer control for starting and stopping hot water supply can also be easily implemented.

The operations of the flat plate I2B and the flat plate 29 are clearly explained in FIG. Figure a shows a state where hot water supply is stopped. b
The figure shows hot water being tapped at a mixing ratio of hot water: 1:1. Diagram C shows the action of adding hot water and squeezing the water. Figure d is C
This figure shows the operation of reducing the flow rate while maintaining the mixing ratio shown in the figure.

The effect of this embodiment is that the rotational action controls the mixing specific gravity and the sliding action adjusts the flow rate, so if you want to improve the accuracy of the mixed water temperature, you can easily control the valve by simply decelerating to the mode-p rotation. In particular, since there is no need for a mechanism to convert rotational motion into linear motion, play that affects controllability is reduced and accuracy is improved.

Further, since the valve position when the supply of mixed hot water is stopped is determined based on the signal from the flow rate detector 47, the mixed hot water can be quickly supplied when hot water is resupplied.

Regarding the valve body, although a flat plate-shaped valve body was used in this embodiment, a type in which a cylindrical valve body rotates and slides within a cylinder may also be used.

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

(1) The mixing water temperature, the mixing flow rate, and the stopping of the hot water supply based on the integrated value of the mixing flow rate can be controlled by an electric driving means and requires only a switch operation, so the operation is simple and can be completed in a short time.

(To) A single mixing/flow rate regulating valve can serve as both the means for adjusting the mixed water temperature and the means for regulating the flow rate.

(31) It is possible to operate the remote control to adjust the flow rate and start and stop the hot water supply timer.Also, by combining the mixed water temperature and flow rate, hot water can be dispensed with a single touch.

(4) Since the flow rate value is adjusted based on the signal from the flow rate detector, accurate values can be obtained, and even if the amount of mixed hot water changes due to water pressure fluctuations or hot water pressure fluctuations, the original value will be maintained. Can be fixed.

[Brief explanation of drawings]

Fig. 1 is a configuration diagram of a hot water mixing device according to an embodiment of the present invention installed in a hot water supply path, Fig. 2 is a cross-sectional view of the main parts, and Fig. 3 a and b are perspective views of the mixing and flow rate regulating valve, respectively. Figure 4 is the same control block diagram, Figure 5 is a+byc+dFi
FIG. 6 is a front view illustrating the same operation and is a configuration diagram showing a conventional hot water mixing device. 20...Controller, 23...Setting device, 2
8... Flat plate work (mixing and flow control valve), 29...
・・・・Flat plate■ (mixing and flow control valve), 43・・・・
・Sliding motor (sliding electric drive means), 45...
...Rotation motor (rotation electric drive means), 46.
...Mixed hot water temperature detector, 47...-Flow rate detector. Name of agent: Patent attorney Toshio Nakao and one other person
Body ↓ l

Claims (3)

[Claims] (1) A mixing/flow control valve that adjusts the mixing ratio and flow rate of hot water and water by rotating and sliding the valve body, an electric rotating drive means that rotates the valve body, and a sliding electric drive that rotates the valve body. a mixing hot water temperature detector for detecting the temperature of the mixed hot water mixed by the mixing/flow control valve, a flow rate detector for detecting the flow rate of the mixed hot water, a mixed hot water temperature, a mixed flow rate, and a mixed flow rate. a setting device for setting one or both of the integrated values;
A hot water mixing device comprising a controller that drives and controls the rotation electric drive means and the sliding electric drive means based on the signal from the setting device, the mixed water temperature sensor, and the flow rate sensor. (2) The hot water mixing device according to claim 1, wherein the mixing ratio is adjusted by rotating the valve body using an electric rotating means, and the flow rate is adjusted by sliding the valve body using an electric sliding means. (3) The hot water mixing device according to claim 1 or 2, wherein the controller stops the operation of the valve body when the supply of mixed hot water is stopped based on the signal from the flow rate detector.