CN101986234A - Constant temperature water outlet control device for tap - Google Patents

Abstract

The constant temperature water outlet control device for the faucet of the present invention takes the controller as the core, collects the water temperature signal at the inlet end of the water outlet pipe and compares it with the set temperature, and adjusts the flow of cold and hot water entering the mixing chamber through the control of the cold and hot water solenoid valves. It is an automatic temperature control device formed by making the temperature of the outlet water in the mixing chamber reach the set temperature. It has a hot and cold water pipe inlet and an outlet pipe inlet. 1. The controller and the control button connected to the temperature sensor can control the temperature of the water in the water mixing chamber through the control of the electromagnetic valve; the positive effect of the present invention is: the electromagnetic valve for cold and hot water can be dynamically adjusted to keep the output water constant temperature; the device is compact and simple, with less peripheral equipment, which significantly reduces the cost of equipment and use; it can be installed and used in hotels, baths, shopping malls, hospitals, office buildings, homes and other places for bathing and hand washing.

Description

Faucet constant temperature water outlet control device

technical field

The invention relates to the technical field of components of general heat exchange or heat transfer equipment in mechanical engineering, in particular to a constant temperature water outlet control device for a faucet.

Background technique

People usually have temperature requirements for the hot water used in daily life. Although the temperature requirements may vary from individual to individual, overheating or overcooling will both make people uncomfortable. At present, the control of the outlet water temperature is usually realized by controlling the temperature of the water supply source. However, in many occasions, the cold and hot water are transported in separate pipelines, and the temperature of the water supply must be controlled by adjusting the amount of cold and hot water entering the faucet. Although this method is convenient in terms of infrastructure, it is difficult to maintain in use. Constant water temperature. Since the pressure of cold and hot water changes, this will cause the flow ratio of the adjusted hot and cold water to change often, so that the temperature of the feed water will change accordingly. Therefore, it is very difficult to ensure the constant temperature of the feed water, which requires the user Constantly adjusting the hot and cold water is a waste of water resources and energy (hot water), and also makes the operation troublesome for the user, and the process is not enjoyable.

There are also electric control butterfly valves for feed water temperature (constant) control. However, the purchase and use costs of using electronically controlled butterfly valves are relatively high, and its control system is also relatively complicated, and it consumes electricity.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art, and propose a constant temperature water outlet control device for faucets, through which the required water temperature can be adjusted, and the temperature of the feed water can be kept at a constant temperature by controlling the hot and cold water valves. With a constant set temperature, the device can be popularized and applied in common civil projects and household equipment.

In order to achieve the above object, the technical scheme that the present invention takes is:

A constant temperature water outlet control device for a faucet, comprising a cold water pipe inlet, a cold water solenoid valve, a hot water pipe inlet, a hot water solenoid valve, and a water outlet pipe inlet, the cold water pipe inlet is connected to a cold water pipe, and the cold water solenoid valve controls The water inlet of the cold water pipe, the hot water pipe inlet is connected to the hot water pipe, the hot water solenoid valve controls the water inlet of the hot water pipe, and the water outlet pipe is connected to the outlet pipe. It is characterized in that the cold water solenoid valve and the hot water solenoid valve The other end of the inlet end of the water outlet pipe is connected to the water mixing chamber, and a controller is provided in the water mixing chamber, and a control button is arranged on the controller; Sensor; the controller is connected with the cold water solenoid valve, the hot water solenoid valve and the temperature sensor through a connection line or a module connection form.

Optionally, the cold water solenoid valve and the hot water solenoid valve only have two states of on and off, which are opened and closed 0.5 to 5 times per second.

The controller is provided with red and green LED lights, the red light shows that the device is running, and the green light shows that the water temperature meets the setting requirements.

The control button is a water temperature setting button.

Control principle of the present invention is:

The controller adopts a single-chip microcomputer as the core circuit system, the circuit collects the signal of the sensor, and outputs the solenoid valve control signal according to the algorithm of the setting program, and sets the control target temperature through 2 buttons;

The cold and hot water solenoid valve used has only two states of on and off, and it is switched on and off 0.5 to 5 times per second, so as to ensure that the cold water or hot water entering the mixing chamber does not enter in a large amount continuously, and can effectively control the flow of cold and hot water;

The controller compares the measured water temperature at the water outlet of the mixing chamber with the set temperature, and then controls the flow of cold and hot water entering the mixing chamber through the control of the hot and cold water solenoid valve, so as to ensure constant temperature water outlet; When the pressure of hot water changes, the sensitive controller will change the conduction time of the hot and cold water solenoid valve accordingly, and the adjusted outlet water will still maintain a constant temperature;

The control buttons arranged on the controller can help the user to conveniently set the water temperature.

The positive effect of the constant temperature water outlet control device for the faucet of the present invention is:

(1) It can dynamically adjust the cold and hot water solenoid valves to maintain a constant temperature of the output water;

(2) The device is compact and simple, with less peripheral equipment, which significantly reduces the cost of equipment and use;

(3) It is suitable for civil and household use, and can be installed and used in hotels, bathing places, shopping malls, hospitals, office buildings, families and other places for bathing and hand washing. the

Description of drawings

The accompanying drawing is a schematic structural view of the constant temperature water outlet control device for the faucet of the present invention.

The labels in the figure are:

1. Cold water pipe inlet; 2. Cold water solenoid valve; 3. Hot water pipe inlet;

4. Hot water solenoid valve; 5. Mixing chamber; 6. Controller;

7. Control button; 8. Temperature sensor; 9. Outlet pipe access port.

Detailed ways

The specific implementation of the constant temperature water outlet control device for the faucet of the present invention will be given below with reference to the accompanying drawings. However, it should be noted that implementation of the present invention is not limited to the following embodiments.

The constant temperature water outlet control device for the faucet of the present invention takes the controller 6 as the core, collects the water temperature signal at the inlet end 9 of the water outlet pipe, and adjusts the flow of cold and hot water entering the mixing chamber 5 by controlling the cold water solenoid valve 2 and the hot water solenoid valve 4 , an automatic temperature control device formed to make the temperature of the outlet water reach the set temperature.

The constant temperature water outlet control device of the faucet of the present invention is mainly composed of a cold water pipe inlet 1, a cold water solenoid valve 2, a hot water pipe inlet 3, a hot water solenoid valve 4, a water mixing chamber 5, a controller 6, a control button 7, a temperature measuring The sensor 8 and the water outlet pipe access end 9 constitute. The cold water pipe inlet 1 is used to connect with the external cold water pipe, the hot water pipe inlet 3 is used for the connection with the external hot water pipe, and the outlet pipe inlet 9 is used to connect with the external (or required) outlet pipe Connection, its (pipeline) connection method can adopt the existing connection method. Control the water intake of cold water pipeline with cold water electromagnetic valve 2, control the water intake of hot water pipeline with hot water electromagnetic valve 4, electromagnetic valve can adopt existing, corresponding electromagnetic valve model.

The cold water solenoid valve 2, the hot water solenoid valve 4 and the outlet pipe inlet 9 are all connected with the mixing chamber 5 in the middle. The water mixing chamber 5 is a cavity-like structure, mainly for cold and hot water to mix in the cavity-like structure, and then output. In the water mixing chamber 5, a controller 6 is set: the controller 6 adopts a circuit system with a single-chip microcomputer as the core, and a fixed control program is set. The signal of the temperature sensor 8 is collected by the circuit, and the solenoid valve control signal is output to the cold water solenoid valve 2. And hot water solenoid valve 4 is controlled. Two control buttons 7 and/or red and green LED lights are set on the controller 6, and a temperature measuring sensor 8 is set at the connection between the water mixing chamber 5 and the outlet pipe inlet 9, and a connection line (or a module connection form) is used. The controller 6 is connected with the cold water solenoid valve 2, the hot water solenoid valve 4 and the temperature measuring sensor 8. The cold water solenoid valve 2 and the hot water solenoid valve 4 are solenoid valves with only two states of on and off, and the number of opening and closing times per second is 0.5 to 5 times; the red and green LED lights are set to indicate that the device is running. The green light shows that the water temperature has reached the setting requirement; the water temperature in the water mixing chamber 5 can be set by the control button 7 .

The control button 7 can set the temperature of the water outlet of the water mixing chamber 5 according to each person's needs. After the temperature is set, the controller 6 will adjust the cold water solenoid valve 2 and the hot water solenoid valve 4 according to the set temperature. If the water temperature at the inlet end 9 of the outlet pipe is close to the set temperature (generally within the range of ±1 degree from the set temperature), the cold water solenoid valve 2 and hot water solenoid valve 4 will maintain the current cut-off frequency, and the red and green LED lights will display The green light indicates that the water temperature has reached the set temperature. If the water temperature at the water outlet pipe inlet 9 differs from the set temperature greater than the range of ±1 degree, the red and green LED lights on the controller 6 will show red, indicating that the water temperature has not yet reached the set temperature.

The controller 6 adjusts the cold water solenoid valve 2 and the hot water solenoid valve 4 according to the water temperature. If the water temperature is higher than the set temperature, the controller 6 will increase the conduction frequency of the cold water solenoid valve 2, put more cold water into the mixing chamber 5, and reduce the conduction frequency of the hot water solenoid valve 4, and put less hot water into the chamber. Mixing chamber 5. Conversely, if the water temperature is lower than the set temperature, the controller 6 will reduce the conduction frequency of the cold water solenoid valve 2, put less cold water into the mixing chamber 5, and increase the conduction frequency of the hot water solenoid valve 4, and put more Hot water enters the mixing chamber 5.

In extreme cases, when the hot water solenoid valve 4 is fully open and the cold water solenoid valve 2 is fully closed, the water temperature at the outlet 4 is still lower than the set temperature; or when the cold water solenoid valve 2 is fully opened and the hot water solenoid valve 6 is fully closed, When the water temperature at the outlet pipe access end 9 was still higher than the set temperature, the red light of the red and green LED lights would flicker alternately, indicating that there was a problem with the temperature setting or the entering water temperature, and it was impossible to obtain the water outlet of the set temperature.

The above is the introduction of the preferred embodiments of the present invention. It should be pointed out that, based on the above introduction, those skilled in the art can make some identical or similar changes and modifications within the technical scope of the present invention, and these same or similar changes and modifications should also belong to the protection scope of the present invention.

Claims (4)

1. water swivel constant-temperature effluent control device, contain cold water pipe incoming end (1), cold water solenoid valve (2), hot-water line incoming end (3), hot water electromagnetic valve (4) and rising pipe incoming end (9), cold water pipe incoming end (1) connects cold water pipes, the inflow of cold water solenoid valve (2) control cold water pipes, hot-water line incoming end (3) connects hot water pipeline, the inflow of hot water electromagnetic valve (4) control hot water pipeline, rising pipe incoming end (9) connects rising pipe, it is characterized in that, cold water solenoid valve (2), the other end of hot water electromagnetic valve (4) and rising pipe incoming end (9) all is being connected mixing chamber (5), be provided with controller (6) in mixing chamber (5), controller (6) is provided with control knob (7); Junction at rising pipe incoming end (9) and mixing chamber (5) is provided with temperature probe (8); Controller (6) is connected with cold water solenoid valve (2), hot water electromagnetic valve (4) and temperature probe (8) by connecting line or module type of attachment.

2. water swivel constant-temperature effluent control device according to claim 1 is characterized in that, optionally, described cold water solenoid valve (2), hot water electromagnetic valve (4) have only two kinds of states of switch, cut-off p.s. 0.5～5 time.

3. water swivel constant-temperature effluent control device according to claim 1 is characterized in that, described controller (6) is provided with red green LED lamp.

4. water swivel constant-temperature effluent control device according to claim 1 is characterized in that, described control knob (7) is provided with button for water temperature.

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