CN214199229U

CN214199229U - Gas-electricity shared energy-saving water outlet device

Info

Publication number: CN214199229U
Application number: CN202120299494.3U
Authority: CN
Inventors: 杨雄; 刘昭琴
Original assignee: Chongqing Aerospace Polytechnic College
Current assignee: Chongqing Aerospace Polytechnic College
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-09-14
Anticipated expiration: 2031-02-02

Abstract

The utility model provides a gas-electricity shared energy-saving water outlet device, which comprises a device shell, wherein the outer wall of the device shell is provided with a water mixing valve, and the interior of the device shell is provided with a heating water tank and a water outlet control module, a heating pipe resistance wire is arranged in the heating water tank, the water outlet control module comprises a water pressure switch, a water outlet temperature regulating circuit, a water inlet temperature switch, a transformer and a rectifying and filtering circuit which are sequentially connected, the water flow Hall sensor, the amplifying circuit, the time delay relay, the switch assembly and the electromagnetic valve are connected in sequence, a cold water inlet of the water mixing valve and a cold water inlet of the electromagnetic valve are used for being connected with external tap cold water, a hot water inlet of the electromagnetic valve is used for being connected with household gas hot water, the heating water tank is communicated with a water outlet pipeline of the electromagnetic valve through a mixed water outlet of the water mixing valve, one end of a heating pipe resistance wire is connected with a commercial power live wire through a water outlet temperature adjusting circuit and a water pressure switch, the other end of the heating pipe resistance wire is connected with a commercial power zero line, and a primary winding of the transformer is connected with the commercial power. This device short time uses and adopts electric heating, uses automatic switch to domestic gas hot-water heating system for a long time, practices thrift electric energy and water resource.

Description

Gas-electricity shared energy-saving water outlet device

Technical Field

The utility model relates to a domestic water supply technical field, concretely relates to gas-electricity sharing energy-conserving water installation.

Background

At present, most household hot water is heated by a gas water heater, most household hot water is used by a kitchen and a toilet, and many household types are provided with two toilets, so that three common hot water areas have certain distance. In addition, only one water heater is installed in a common household, so that hot water can flow out after the water faucet is started for a period of time every time hot water is used, and water resources are wasted; in particular, in winter, people wash hands after going to a toilet, namely, the water is used for several seconds, at this time, the water boiling faucet can be used for heating water after waiting for a long time, a lot of cold water is discharged, water resources are wasted, the water heater at the present stage is in a forced-ventilated type, water is turned off after the water is used up, the motor can continue to run for more than ten seconds, the cost is not high for the hot water used for a short time, the use frequency of the water heater is high, and the service life is shortened.

At present, the heating is carried out by adopting an electric heating faucet, the heating time is short, and the hot water is quickly discharged. However, the inventors of the present invention have found that if the gas is used for a long time, the power consumption is large, and the cost is increased compared with heating with natural gas.

SUMMERY OF THE UTILITY MODEL

It is very not cost-effective (water waste resource, shorten water heater life, extravagant electric energy and natural gas) to use hot water to current gas heater short time, and adopt electric heat tap to exist power consumption great with hot water for a long time, compare the technical problem that the expense can increase with heating with the natural gas, the utility model provides a gas-electricity sharing goes out water installation with energy-conservation.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the gas-electricity shared energy-saving water outlet device comprises a device shell, wherein a water mixing valve is arranged on the outer wall of the device shell, a heating water tank and a water outlet control module are arranged inside the device shell, the heating water tank is provided with a water inlet and a water outlet, a heating pipe resistance wire is arranged in the heating water tank, the water outlet control module comprises a water pressure switch, a water outlet temperature regulating circuit, an inlet water temperature switch, a water flow Hall sensor, a transformer, a rectifying and filtering circuit, an amplifying circuit, a time delay relay, a switch assembly and an electromagnetic valve, cold water inlets of the water mixing valve and the electromagnetic valve are used for being connected with external tap cold water, a hot water inlet of the electromagnetic valve is used for being connected with household hot water, a hot water inlet of the water mixing valve is communicated with the water outlet of the electromagnetic valve through a pipeline, a mixed water outlet of the water mixing valve is communicated with a water inlet of the heating water tank through a pipeline, one end of the heating pipe resistance wire is sequentially connected with a mains supply through the water outlet temperature regulating circuit and the water pressure switch, the other end of the heating pipe resistance wire is connected with a mains supply zero line, the box body of the heating water tank is grounded, the water inlet temperature switch and the water flow Hall sensor are arranged on a pipeline communicated with a mixed water outlet of the water mixing valve and a water inlet of the heating water tank, the water pressure switch is arranged on a branch pipeline of the pipeline communicated with the mixed water outlet of the water mixing valve and the water inlet of the heating water tank, the head end of a primary winding of the transformer is connected with a mains supply live wire, the tail end of the primary winding is connected with the mains supply zero line, and a secondary winding of the transformer is sequentially connected with the electromagnetic valve through a rectifying filter circuit, a water flow Hall sensor, an amplifying circuit, a delay relay, a switch assembly and the like; the rectifier filter circuit is used for rectifying and filtering the voltage after voltage reduction of the transformer and then transmitting the voltage to the water flow Hall sensor, the amplifying circuit is used for amplifying the water flow Hall voltage output by the water flow Hall sensor and then transmitting the amplified voltage to the delay relay, the switch assembly is used for communicating the electromagnetic valve with a voltage source after rectification and filtering within preset delay time of the delay relay, so that cold water connected into a cold water inlet of the electromagnetic valve is electrically heated by a heating pipe resistance wire within the preset delay time through the delay relay control electromagnetic valve, and the cold water inlet of the electromagnetic valve is closed and a hot water inlet of the electromagnetic valve is opened after the preset delay time is over through the delay relay control electromagnetic valve.

Compared with the prior art, when the gas-electricity shared energy-saving water outlet device needs to discharge hot water, the water mixing valve (which can be simply understood as a switch of a faucet) outside the water outlet device is firstly opened to the hot water side, the water flow Hall sensor can detect the flow of water flow, the electromagnetic valve is controlled by the time delay relay to open the cold water inlet of the electromagnetic valve, and the accessed cold water enters the heating water tank after passing through the mixed water outlet of the electromagnetic valve and the water mixing valve; then, a water inlet temperature switch on a pipeline for communicating a mixed water outlet of the water mixing valve with a water inlet of the heating water tank detects the water inlet temperature of the heating water tank, and is in a closed state when the detected water inlet temperature is lower than a preset temperature value, meanwhile, a water pressure switch on a branch pipeline of the pipeline for communicating the mixed water outlet of the water mixing valve with the water inlet of the heating water tank detects the water inlet pressure of the heating water tank, and is in a closed state (water cut and dry burning are avoided) when the water pressure is detected, so that the electrical communication between the two ends of a resistance wire of a heating pipe and a live wire and a zero wire of a mains supply is realized, the electrical heating is automatically started at the moment, the cold water entering the heating water tank is electrically heated, and the hot water can be discharged from a water outlet of the heating water tank within two seconds; when cold water is electrically heated, the transformer reduces the voltage of commercial power, the reduced voltage is rectified and filtered and then provided to the water flow Hall sensor as a working power supply, the water flow Hall sensor detects the water flow entering a pipeline for communicating a mixed water outlet of the water mixing valve with a water inlet of the heating water tank, the detected water flow Hall voltage signal is amplified and then provided to the time delay relay as a timing trigger signal, and the time delay relay controls the switch assembly to communicate the electromagnetic valve with the voltage source after rectification and filtering within a preset delay time, so that the preset delay time of the time delay relay is set according to the short-time water using time of the time delay relay, and the time delay relay controls the electromagnetic valve to be connected to the cold water for electric heating is reached; when the preset delay time of the delay relay is over, the electromagnetic valve is disconnected with the voltage source after rectification and filtration, the delay relay controls the electromagnetic valve to close the cold water inlet and open the hot water inlet (switching water path), the household gas hot water accessed by the hot water inlet enters the heating water tank through the electromagnetic valve water outlet and the mixed water outlet of the water mixing valve, at the moment, the water inlet temperature switch on the pipeline communicating the mixed water outlet of the water mixing valve with the water inlet of the heating water tank detects the water inlet temperature entering the heating water tank, because the household water heater is generally away from the water outlet device by a certain distance, the phenomenon that cold water exists between the gas water heater and the water outlet device exists, the water inlet temperature detection is used for detecting the cold water temperature, when the temperature is lower than the preset temperature, the electric heating device continues to heat the cold water, and when the water inlet temperature is higher than the preset temperature, the water inlet temperature switch disconnects the other end of the heating pipe resistance wire from the commercial power zero line, and the electric heating is automatically stopped, so that the switching to a household gas hot water system is automatically completed, the effect of saving water resources can be realized, the phenomenon that cold water is discharged from the gas water heater to a water outlet device is avoided, and the gas water heater is effectively utilized. Therefore, the device can realize short-time use and electric heating, water outlet is fast, and automatic switching to a household gas hot water system is performed during long-time use, so that the effects of saving electric energy, water resources and natural gas can be achieved, the problems that gas hot water is slow in water outlet, front-section cold water is wasted, the working frequency of a short-time water heater is high and the like are effectively solved, and the service life of the water heater is prolonged.

Furthermore, the output ends of the live wire and the zero line of the commercial power are connected with a leakage protector.

Furthermore, a water outlet temperature switch is installed on a water outlet pipeline of the heating water tank, one end of the water outlet temperature switch is connected with the positive output end of the leakage protector, and the other end of the water outlet temperature switch is connected with the water pressure switch and the head end of the primary winding of the transformer.

Furthermore, a thermal protector is installed in the heating water tank, one end of the thermal protector is connected with the negative output end of the leakage protector, and the other end of the thermal protector is connected with one end of the water inlet temperature switch and the tail end of the primary winding of the transformer.

Further, the water outlet temperature regulating circuit comprises a resistor R1, an adjustable potentiometer R2, a resistor R3, capacitors C1 and C2, a bidirectional trigger diode D and a bidirectional controlled silicon B, wherein one ends of the resistor R1 and the adjustable potentiometer R2 and a first anode of the bidirectional controlled silicon B are connected with the water pressure switch, the other end of the resistor R1 is connected with one end of the capacitor C1, the other end of the adjustable potentiometer R2 is connected with one ends of the capacitor C2 and the bidirectional trigger diode D through the resistor R3, the other end of the bidirectional trigger diode D is connected with a gate of the bidirectional controlled silicon B, and the other ends of the capacitors C1 and C2 and a second anode of the bidirectional controlled silicon B are connected with one end of a heating tube resistance wire.

Further, the water outlet control module further comprises an indicating circuit, the indicating circuit comprises a voltage reduction resistor R4, a diode D1 and a light emitting diode D2 which are sequentially connected, the other end of the voltage reduction resistor R4 is connected with a water pressure switch, and the cathode of the light emitting diode D2 is connected with the other end of the heating tube resistance wire.

Further, the rectifying and filtering circuit comprises diodes VD 1-VD 4 and a capacitor C3, the anode of the diode VD1 and the cathode of the diode VD3 are connected with the head end of the secondary winding of the transformer, the anode of the diode VD2 and the cathode of the diode VD4 are connected with the tail end of the secondary winding of the transformer, the cathodes of the diodes VD1 and VD2 are connected with one end of the capacitor C3, and the anodes of the diodes VD3 and VD4 are connected with the other end of the capacitor C3.

Further, the amplifying circuit comprises resistors R5-R11 and operational amplifiers a 1-A3, a non-inverting input terminal of the operational amplifier a1 is connected to the first output terminal of the water flow hall sensor, an inverting input terminal of the operational amplifier a1 is connected to one ends of the resistors R5 and R6, the other end of the resistor R6 is connected to an output terminal of the operational amplifier a1 and one end of the resistor R7, the other end of the resistor R7 is connected to one end of the resistor R10 and an inverting input terminal of the operational amplifier A3, the other end of the resistor R10 is connected to an input terminal of the operational amplifier A3 and an input terminal of the delay relay, a non-inverting input terminal of the operational amplifier a2 is connected to the second output terminal of the water flow hall sensor, an inverting input terminal of the operational amplifier a2 is connected to one end of the resistor R8 and the other end of the resistor R5, the other end of the resistor R8 is connected to an output terminal of the operational amplifier a2 and one end of the non-inverting input terminal of the resistor R2, the other end of the resistor R11 is connected with the grounding end of the water flow Hall sensor.

Further, the switch module includes electronic switch K2 and resistance R12 and R13, the first foot of electronic switch K2 is connected with rivers Hall sensor's input, the inside back that connects in parallel of second foot and the third foot of electronic switch K2 connects the solenoid valve, the fifth foot and the one end of resistance R12 and R13 of electronic switch K2 are connected, the output of delay relay is connected to the other end of resistance R12, the other end of resistance R13 and the fourth foot of electronic switch K2 all are connected with rivers Hall sensor's earthing terminal.

Further, both ends of the electromagnetic valve are connected in parallel with a rectifier diode VD 5.

Drawings

Fig. 1 is a schematic view of the structure layout of the gas-electricity shared energy-saving water outlet device provided by the utility model.

Fig. 2 is a schematic connection diagram of the principle of the gas-electricity shared energy-saving water outlet device provided by the utility model.

Fig. 3 is a schematic view of a water outlet control module of the gas-electricity shared energy-saving water outlet device provided by the utility model.

In the figure, 1, the device housing; 2. a water mixing valve; 21. a cold water outlet; 3. heating the water tank; 31. heating a tube resistance wire; 32. a thermal protector; 4. a water outlet control module; 41. a water outlet temperature regulating circuit; 42. a rectification filter circuit; 43. an amplifying circuit; 44. a switch assembly; 45. an electromagnetic valve; 451. a cold water inlet of the electromagnetic valve; 452. a solenoid valve hot water inlet; 46. a leakage protector; 47. an indication circuit.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.

In the description of the present invention, it is to be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 3, the utility model provides a gas-electricity shared energy-saving water outlet device, which comprises a device shell 1, a water mixing valve 2 is arranged on the outer wall of the device shell 1, a heating water tank 3 and a water outlet control module 4 are arranged inside the device shell 1, the heating water tank 3 is provided with a water inlet and a water outlet, a heating pipe resistance wire 31 is arranged in the heating water tank 3, the water outlet control module 4 comprises a water pressure switch K1, a water outlet temperature adjusting circuit 41, a water inlet temperature switch ST1, a water flow hall sensor H, a transformer T, a rectifying and filtering circuit 42, an amplifying circuit 43, a time delay relay C, a switch assembly 44 and an electromagnetic valve 45, cold water inlets of the water mixing valve 2 and the electromagnetic valve 45 are used for receiving external tap water, a hot water inlet of the electromagnetic valve 45 is used for receiving household gas hot water, a hot water inlet of the water mixing valve 2 is communicated with the water outlet of the electromagnetic valve 45, the mixed water outlet of the water mixing valve 2 is communicated with the water inlet of the heating water tank 3 through a pipeline, the water mixing valve 2 is also provided with a cold water outlet 21, one end of a heating pipe resistance wire 31 is sequentially connected with a live line L of mains supply through a water outlet temperature adjusting circuit 41 and a water pressure switch K1, the other end of the heating pipe resistance wire 31 is connected with a zero line N of mains supply, the box body of the heating water tank 4 is grounded, an inlet temperature switch ST1 and a water flow Hall sensor H are arranged on the pipeline for communicating the mixed water outlet of the water mixing valve 2 with the water inlet of the heating water tank 3, the water pressure switch K1 is arranged on a branch pipeline for communicating the mixed water outlet of the water mixing valve 2 with the water inlet of the heating water tank 3, the head end of a primary winding of a transformer T is connected with the live line L of mains supply and the tail end of the primary winding is connected with the zero line N of the mains supply, and a secondary winding of the transformer T sequentially passes through a rectifying and filtering circuit 42, The water flow Hall sensor H, the amplifying circuit 43, the delay relay C, the switch assembly 44 and the electromagnetic valve 45 are connected; the rectifying and filtering circuit 42 is configured to rectify and filter the voltage (220V → 12V) after the voltage reduction of the transformer T and transmit the rectified and filtered voltage to the water flow hall sensor H, the amplifying circuit 43 is configured to amplify the water flow hall voltage output by the water flow hall sensor H and transmit the amplified voltage to the delay relay C, the switch assembly 44 is configured to communicate the electromagnetic valve 45 with the rectified and filtered voltage source (i.e., 12V) within a preset delay time of the delay relay C, so that the electromagnetic valve 45 is controlled by the delay relay C to electrically heat the cold water, which is received by the electromagnetic valve cold water inlet 451, within the preset delay time through the heating pipe resistance wire 31, and the electromagnetic valve 45 is controlled by the delay relay C to close the electromagnetic valve cold water inlet 451 and open the electromagnetic valve hot water inlet 452 after the preset delay time is over, thereby controlling the access of the cold water by the delay relay C.

As a specific embodiment, please refer to fig. 1 and fig. 3, the output ends of the live wire L and the zero wire N of the utility power are connected with a leakage protector 46, that is, all the electric components in the device need to be connected with the external utility power through the leakage protector 46, so that the leakage protector has overload and short-circuit protection functions when the equipment has a leakage fault and protects the human body with fatal danger from electric shock, and can be used for the infrequent switching and starting of the line under normal conditions. The specific structure and operation principle of the earth leakage protector 46 are well known in the art, and therefore will not be described herein.

As a specific embodiment, referring to fig. 1 to 3, an outlet temperature switch ST2 is installed on a water outlet pipeline of the heating water tank 3, one end of the outlet temperature switch ST2 is connected to a positive output end of the leakage protector 46, and the other end is connected to a water pressure switch K1 and a head end of a primary winding of the transformer T, so that when the outlet temperature of the heating water tank 3 detected by the water temperature switch ST2 is higher than a preset temperature value (e.g., 65 ℃), the water temperature switch ST2 is automatically triggered to be turned off, that is, the whole outlet control module 4 is suspended due to power loss, thereby preventing the water in the heating water tank 3 from being scalded to a human body due to an excessively high heating temperature.

As a specific embodiment, please refer to fig. 2 and fig. 3, a thermal protector 32 is installed in the heating water tank 3, one end of the thermal protector 32 is connected to a negative output terminal of a leakage protector 46, and the other end of the thermal protector 32 is connected to one end of a water inlet temperature switch ST1 and a primary winding tail end of a transformer T, so that when the thermal protector 32 senses that the temperature of water in the heating water tank 3 rises (caused by dry water) to reach an action temperature value, a bimetallic strip of the thermal protector 32 is heated to generate an internal stress to rapidly cut off the connection between the negative output terminal of the leakage protector 46 and one end of the water inlet temperature switch ST1 and the primary winding tail end of the transformer T, thereby playing a thermal protection role; through adopting built-in hot protector promptly, can monitor the temperature in the heating water tank fast, realize the effect of guarantee safety.

As a specific embodiment, referring to fig. 3, the water outlet temperature adjusting circuit 41 includes a resistor R1, an adjustable potentiometer R2, a resistor R3, capacitors C1 and C2, a diac D, and a triac B, wherein one ends of the resistor R1 and the adjustable potentiometer R2 and a first anode of the triac B are connected to a water pressure switch K1, the other end of the resistor R1 is connected to one end of a capacitor C1, the other end of the adjustable potentiometer R2 is connected to one ends of the capacitor C2 and the triac D through a resistor R3, the other end of the triac D is connected to a gate of the triac B, and the other ends of the capacitors C1 and C2 and a second anode of the triac B are connected to one end of a heating tube resistance wire 31. In the embodiment of the water outlet temperature adjusting circuit 41, the resistor R1 and the capacitor C1 are used for voltage reduction (or voltage stabilization), the adjustable potentiometer R2, the resistor R3, the capacitor C2 and the bidirectional trigger diode D form a pulse signal to trigger the bidirectional thyristor B, so that the bidirectional thyristor B keeps corresponding forward and reverse conduction in both positive and negative half cycles of a mains supply, specifically, a 220V alternating-current power supply charges the capacitor C2 through the adjustable potentiometer R2 and the resistor R3, when the charging voltage of the capacitor C2 reaches a threshold value (for example, 28V) of the bidirectional trigger diode D, the bidirectional trigger diode D is conducted to enable the voltage to reach a control electrode, namely a gate electrode, of the bidirectional thyristor B, and the bidirectional trigger resistance wire is conducted to enable the voltage to reach one end of the heating pipe 31; the conduction angle of the bidirectional controllable silicon B can be increased or decreased by changing the resistance value of the adjustable potentiometer R2, so that the output voltage is increased or decreased, and the purposes of voltage regulation and temperature regulation are achieved. As an implementation mode, the diac D can be realized by a diac with the model number DB3, and the triac B can be realized by a triac with the model number BTA 16-600B.

As a specific embodiment, referring to fig. 3, the water outlet control module 4 further includes an indication circuit 47, the indication circuit 47 includes a voltage reduction resistor R4, a diode D1 and a light emitting diode D2 which are connected in sequence, the other end of the voltage reduction resistor R4 is connected to the water pressure switch K1, and the cathode of the light emitting diode D2 is connected to the other end of the heating tube resistance wire 31, so that when cold water in the heating water tank 3 is heated by normal electricity, the light emitting diode D2 emits light for indication, which is convenient for observation.

As a specific embodiment, referring to fig. 3, the rectifying and filtering circuit 42 includes diodes VD1 to VD4 and a capacitor C3, an anode of the diode VD1 and a cathode of the diode VD3 are connected to a head end of a secondary winding of the transformer T, an anode of the diode VD2 and a cathode of the diode VD4 are connected to a tail end of the secondary winding of the transformer T, cathodes of the diodes VD1 and VD2 are connected to one end of the capacitor C3, and anodes of the diodes VD3 and VD4 are connected to the other end of the capacitor C3. Therefore, by adopting the technical scheme provided by the embodiment, the alternating current after the voltage reduction of the transformer T can be rectified and filtered (such as 12V direct current) and then provided for the water flow Hall sensor H for use.

As a specific embodiment, referring to fig. 3, the amplifying circuit 43 includes resistors R5 to R11 and operational amplifiers a1 to A3, a non-inverting input terminal of the operational amplifier a1 is connected to a first output terminal of the water flow hall sensor H, an inverting input terminal of the operational amplifier a1 is connected to one ends of resistors R5 and R6, the other end of the resistor R6 is connected to an output terminal of the operational amplifier a1 and one end of the resistor R7, the other end of the resistor R7 is connected to one end of the resistor R10 and an inverting input terminal of the operational amplifier A3, the other end of the resistor R10 is connected to an input terminal of the operational amplifier A3 and an input terminal of the delay relay C, a non-inverting input terminal of the operational amplifier a2 is connected to a second output terminal of the water flow hall sensor H, an inverting input terminal of the operational amplifier a2 is connected to one end of the resistor R8 and the other end of the resistor R5, the other end of the resistor R8 is connected to an output terminal of the operational amplifier a2 and one end of the resistor R9, the other end of the resistor R9 is connected with one end of a resistor R11 and the non-inverting input end of the operational amplifier A3, and the other end of the resistor R11 is connected with the grounding end of the water flow Hall sensor H. In the amplifying circuit provided by the implementation, the output voltage of the water flow Hall sensor is amplified by adopting three operational amplifiers, and the input impedance of the three operational amplifiers is greater than that of the water flow Hall sensor, so that the generation of operational amplifier errors is effectively avoided. As an implementation mode, the operational amplifiers A1-A3 can be realized by an operational amplifier with the model number TL 084.

As a specific embodiment, referring to fig. 3, the switch assembly 44 includes an electronic switch K2 and resistors R12 and R13, a first pin of the electronic switch K2 is connected to an input terminal of the water flow hall sensor H, a second pin and a third pin of the electronic switch K2 are connected in parallel and then connected to an electromagnetic valve 45, a fifth pin of the electronic switch K2 is connected to one ends of the resistors R12 and R13, the other end of the resistor R12 is connected to an output terminal of the time delay relay C, and the other end of the resistor R13 and a fourth pin of the electronic switch K2 are connected to a ground terminal of the water flow hall sensor H. By adopting the technical scheme in the embodiment, the voltage output by the delay relay C can be reduced through the resistor R12 and the resistor R13, and then the electronic switch K2 (such as a TWH887 switching device) is triggered to be conducted, so that the electromagnetic valve 45 is connected with the voltage source after rectification and filtration, and the electromagnetic valve 45 starts to act.

As a specific embodiment, a rectifying diode VD5 is connected in parallel to two ends of the solenoid valve 45, so that the voltage source input to the solenoid valve 45 can be rectified again, and the voltage across the solenoid valve 45 is stable.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The gas-electricity shared energy-saving water outlet device comprises a device shell and is characterized in that a water mixing valve is arranged on the outer wall of the device shell, a heating water tank and a water outlet control module are arranged inside the device shell, the heating water tank is provided with a water inlet and a water outlet, a heating pipe resistance wire is arranged in the heating water tank, the water outlet control module comprises a water pressure switch, a water outlet temperature regulating circuit, a water inlet temperature switch, a water flow Hall sensor, a transformer, a rectifying and filtering circuit, an amplifying circuit, a time delay relay, a switch assembly and an electromagnetic valve, cold water inlets of the water mixing valve and the electromagnetic valve are used for being connected with external tap cold water, a hot water inlet of the electromagnetic valve is used for being connected with household gas hot water, a hot water inlet of the water mixing valve is communicated with the water outlet of the electromagnetic valve through a pipeline, and a mixed water outlet of the water mixing valve is communicated with the water inlet of the heating water tank through a pipeline, one end of the heating pipe resistance wire is connected with a commercial power live wire through a water outlet temperature adjusting circuit and a water pressure switch in sequence, the other end of the heating pipe resistance wire is connected with a commercial power zero line, a box body of the heating water tank is grounded, the water inlet temperature switch and the water flow Hall sensor are arranged on a pipeline communicated with a mixed water outlet of the water mixing valve and a water inlet of the heating water tank, the water pressure switch is arranged on a branch pipeline communicated with a mixed water outlet of the water mixing valve and a water inlet of the heating water tank, the head end of a primary winding of the transformer is connected with the commercial power live wire, the tail end of the primary winding is connected with the commercial power zero line, and a secondary winding of the transformer is connected with an electromagnetic valve through a rectifying filter circuit, the water flow Hall sensor, an amplifying circuit, a time delay relay, a switch assembly and the like in sequence; the rectifier filter circuit is used for rectifying and filtering the voltage after voltage reduction of the transformer and then transmitting the voltage to the water flow Hall sensor, the amplifying circuit is used for amplifying the water flow Hall voltage output by the water flow Hall sensor and then transmitting the amplified voltage to the delay relay, the switch assembly is used for communicating the electromagnetic valve with a voltage source after rectification and filtering within preset delay time of the delay relay, so that cold water connected into a cold water inlet of the electromagnetic valve is electrically heated by a heating pipe resistance wire within the preset delay time through the delay relay control electromagnetic valve, and the cold water inlet of the electromagnetic valve is closed and a hot water inlet of the electromagnetic valve is opened after the preset delay time is over through the delay relay control electromagnetic valve.

2. The gas-electricity shared energy-saving water outlet device according to claim 1, wherein the output ends of the live line and the zero line of the mains supply are connected with a leakage protector.

3. The gas-electric shared energy-saving water outlet device according to claim 2, wherein a water outlet temperature switch is mounted on a water outlet pipeline of the heating water tank, one end of the water outlet temperature switch is connected with the positive output end of the leakage protector, and the other end of the water outlet temperature switch is connected with the water pressure switch and the head end of the primary winding of the transformer.

4. The gas-electric shared energy-saving water outlet device according to claim 2, wherein a thermal protector is installed in the heating water tank, one end of the thermal protector is connected with the negative output end of the leakage protector, and the other end of the thermal protector is connected with one end of the water inlet temperature switch and the tail end of the primary winding of the transformer.

5. The gas-electric shared energy-saving water outlet device according to claim 1, wherein the water outlet temperature regulating circuit comprises a resistor R1, an adjustable potentiometer R2, a resistor R3, capacitors C1 and C2, a bidirectional trigger diode D and a bidirectional thyristor B, one ends of the resistor R1 and the adjustable potentiometer R2 and a first anode of the bidirectional thyristor B are connected with the water pressure switch, the other end of the resistor R1 is connected with one end of the capacitor C1, the other end of the adjustable potentiometer R2 is connected with one ends of the capacitor C2 and the bidirectional trigger diode D through a resistor R3, the other end of the bidirectional trigger diode D is connected with a gate of the bidirectional thyristor B, and the other ends of the capacitors C1 and C2 and a second anode of the bidirectional thyristor B are connected with one end of the heating tube.

6. The gas-electric shared energy-saving water outlet device according to claim 5, wherein the water outlet control module further comprises an indication circuit, the indication circuit comprises a voltage reduction resistor R4, a diode D1 and a light emitting diode D2 which are connected in sequence, the other end of the voltage reduction resistor R4 is connected with a water pressure switch, and the cathode of the light emitting diode D2 is connected with the other end of the heating tube resistance wire.

7. The gas-electric shared energy-saving water outlet device according to claim 1, wherein the rectifying and filtering circuit comprises diodes VD 1-VD 4 and a capacitor C3, the anode of the diode VD1 and the cathode of the diode VD3 are connected with the head end of the secondary winding of the transformer, the anode of the diode VD2 and the cathode of the diode VD4 are connected with the tail end of the secondary winding of the transformer, the cathodes of the diodes VD1 and VD2 are connected with one end of the capacitor C3, and the anodes of the diodes VD3 and VD4 are connected with the other end of the capacitor C3.

8. The gas-electric shared energy-saving water outlet device according to claim 1, wherein the amplifying circuit comprises resistors R5-R11 and operational amplifiers a 1-A3, a non-inverting input terminal of the operational amplifier a1 is connected to a first output terminal of the water flow hall sensor, an inverting input terminal of the operational amplifier a1 is connected to one ends of resistors R5 and R6, the other end of the resistor R6 is connected to an output terminal of the operational amplifier a1 and one end of a resistor R7, the other end of the resistor R7 is connected to one end of a resistor R10 and an inverting input terminal of the operational amplifier A3, the other end of the resistor R10 is connected to an input terminal of the operational amplifier A3 and an input terminal of the delay relay, a non-inverting input terminal of the operational amplifier a2 is connected to a second output terminal of the water flow hall sensor, an inverting input terminal of the operational amplifier a2 is connected to one end of a resistor R8 and the other end of a resistor R5, and the other end of the resistor R8 is connected to an output terminal of the operational amplifier a2 and one end of the resistor R9, the other end of the resistor R9 is connected with one end of a resistor R11 and the non-inverting input end of the operational amplifier A3, and the other end of the resistor R11 is connected with the grounding end of the water flow Hall sensor.

9. The gas-electric shared energy-saving water outlet device as claimed in claim 1, wherein the switch assembly comprises an electronic switch K2 and resistors R12 and R13, a first pin of the electronic switch K2 is connected with an input end of the water flow hall sensor, a second pin and a third pin of the electronic switch K2 are connected with an electromagnetic valve after being connected in parallel, a fifth pin of the electronic switch K2 is connected with one ends of the resistors R12 and R13, the other end of the resistor R12 is connected with an output end of the time delay relay, and the other end of the resistor R13 and a fourth pin of the electronic switch K2 are both connected with a ground end of the water flow hall sensor.

10. The gas-electric shared energy-saving water outlet device as claimed in claim 1, wherein two ends of the electromagnetic valve are connected in parallel with a rectifier diode VD 5.