A central hot water energy-saving remote control device

Abstract

The present invention discloses a central hot water energy-saving remote control device, which relates to the field of hot water control technology and includes a current detection module for current detection and providing feedback values; an infrared receiving module for amplifying and converting received infrared sensing signals; a feedback value adjustment module for performing addition processing on the signals output by the infrared receiving module and adjusting the feedback values; a solar hot water detection module for detecting the water temperature and water level of a solar water heater; an intelligent control module for signal reception and module control; a frequency conversion module for rectifying, filtering, and inverting and regulating the speed of a water outlet pump module; and a hot water source switching module for controlling the operation of an electric water heater solenoid valve. The central hot water energy-saving remote control device of the present invention changes the water pressure of the water outlet pump module based on the number of signals received by the infrared receiving module, thereby avoiding insufficient outlet water pressure and controlling the electric water heater to provide hot water when the water level and water temperature of the solar water heater are low.

Description

Technical Field

[0001] The invention relates to the technical field of hot water control, in particular to a central hot water energy-saving remote control device. Background Art

[0002] A central water heater is a water heater that can supply hot water to multiple locations at any time and at the same time. In order to meet the intelligent water supply control of the central water heater, most central water heaters will use a central hot water control device to control the water supply. Most existing central hot water control devices use gas for rapid heating and cannot effectively perform energy-saving control. In addition, since only one water heater controls the hot water supply of multiple water outlets, it is easy to reduce the water outlet rate of the water outlet when multiple water outlets are discharging water at the same time. The central hot water control device cannot simply and effectively adjust the water outlet rate of the water outlet according to the status of the water outlet, which reduces the user experience. Summary of the Invention

[0003] The embodiment of the present invention provides a central hot water energy-saving remote control device to solve the problems raised in the above background technology.

[0004] According to an embodiment of the present invention, a central hot water energy-saving remote control device is provided, which includes: a power supply module, a water outlet pump module, a current detection module, an infrared receiving module, a feedback value adjustment module, a solar water heating detection module, an intelligent control module, a frequency conversion module, and a hot water source switching module;

[0005] The power supply module is used to provide the first AC power and control the transmission of the first AC power;

[0006] The water outlet pump module is connected to the frequency conversion module and is used to receive the electric energy output by the frequency conversion module and adjust the speed of the water outlet pump;

[0007] The current detection module is connected to the water pump module and is used to isolate and detect the current input to the water pump module and convert the detected current signal into a first voltage signal;

[0008] The infrared receiving module is used to receive the first infrared sensing signal and the second infrared sensing signal and amplify the received signals, and to convert the amplified first infrared sensing signal and the second infrared sensing signal into a second voltage signal and a third voltage signal respectively;

[0009] The feedback value adjustment module is connected to the infrared receiving module and the current detection module, and is used to perform addition processing on the input third voltage signal and the second voltage signal and output a first control signal, and is used to control the operation of the feedback value adjustment circuit through the first control signal, and is used to perform voltage division adjustment processing on the first voltage signal through the feedback value adjustment circuit;

[0010] The solar water heating detection module is used to detect the temperature of hot water in the solar water heater and output a second control signal when the temperature is lower than a set temperature threshold, to detect the water level of the solar water heater tank and output a third control signal, and to perform an OR logic calculation on the third control signal and the second control signal and output a fourth control signal;

[0011] The intelligent control module is connected to the solar water heating detection module, the infrared receiving module and the current detection module, and is used to receive the fourth control signal and output a fifth control signal to control the operation of the hot water source switching module, and is used to output a pulse signal and adjust the pulse width of the pulse signal according to the first voltage signal; and is used to receive the signal output by the infrared receiving module;

[0012] The frequency conversion module is connected to the intelligent control module and the power supply module, and is used to receive the pulse signal through the frequency conversion circuit and perform rectification, filtering and inversion regulation on the electric energy output by the power supply module, and output the second AC electric energy and transmit the second AC electric energy to the water outlet pump module;

[0013] The hot water source switching module is connected to the intelligent control module and the power supply module, and is used to receive the fifth control signal and control the operation of the solenoid valve of the electric water heater.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the central hot water energy-saving remote control device of the present invention receives the infrared sensing signal by the infrared receiving module to judge the working condition of the water outlet device, the current detection module detects the current condition of the input water pump module and feeds back the detected current to the intelligent control module, cooperates with the frequency conversion module to adjust the water pressure of the water pump module, and the feedback value adjustment module performs addition processing on the signal output by the infrared receiving module and adjusts the voltage value of the signal fed back to the intelligent control module by the current detection module, thereby changing the water pressure condition of the water pump module to avoid the situation where multiple water outlet devices discharge water at the same time and cause insufficient water pressure, and the solar water heater provides hot water to improve the energy-saving effect, and the solar hot water detection module detects the water level and temperature of the solar water heater, so that when the water level is low and the water temperature is low, the hot water source switching module controls the electric water heater to provide hot water to ensure the normal supply of hot water. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in describing the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 The present invention provides a block diagram of the principle of a central hot water energy-saving remote control device.

[0017] Figure 2 This is a circuit diagram of a central hot water energy-saving remote control device provided by an example of the present invention.

[0018] Figure 3 This is a connection circuit diagram of a solar water heating detection module provided by an example of the present invention.

[0019] Figure 4 This is a connection circuit diagram of the hot water source switching module provided by an example of the present invention. Implementation Method

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] In one embodiment, see Figure 1 A central hot water energy-saving remote control device includes: a power supply module 1, a water outlet pump module 2, a current detection module 3, an infrared receiving module 4, a feedback value adjustment module 5, a solar hot water detection module 6, an intelligent control module 7, a frequency conversion module 8, and a hot water source switching module 9;

[0022] Specifically, the power module 1 is used to provide a first AC power and control the transmission of the first AC power;

[0023] The water outlet pump module 2 is connected to the frequency conversion module 8 and is used to receive the electric energy output by the frequency conversion module 8 and adjust the speed of the water outlet pump;

[0024] a current detection module 3 connected to the water pump module, configured to perform isolation detection on the current input to the water outlet pump module 2 and convert the detected current signal into a first voltage signal;

[0025] an infrared receiving module 4, configured to receive the first infrared sensing signal and the second infrared sensing signal and amplify the received signals, and convert the amplified first infrared sensing signal and the second infrared sensing signal into a second voltage signal and a third voltage signal respectively;

[0026] a feedback value adjustment module 5, connected to the infrared receiving module 4 and the current detection module 3, configured to perform addition processing on the input third voltage signal and the second voltage signal and output a first control signal, configured to control the operation of the feedback value adjustment circuit through the first control signal, and configured to perform voltage division adjustment processing on the first voltage signal through the feedback value adjustment circuit;

[0027] a solar water heating detection module 6, configured to detect the temperature of hot water in the solar water heater and output a second control signal when the temperature is lower than a set temperature threshold, to detect the water level in the solar water heater tank and output a third control signal, and to perform an OR logic operation on the third control signal and the second control signal and output a fourth control signal;

[0028] an intelligent control module 7 connected to the solar water heating detection module 6, the infrared receiving module 4, and the current detection module 3, configured to receive the fourth control signal and output a fifth control signal to control the operation of the hot water source switching module 9, and configured to output a pulse signal and adjust the pulse width of the pulse signal according to the first voltage signal; and configured to receive the signal output by the infrared receiving module 4;

[0029] The frequency conversion module 8 is connected to the intelligent control module 7 and the power supply module 1, and is used to receive the pulse signal through the frequency conversion circuit and perform rectification, filtering and inversion regulation on the electric energy output by the power supply module 1, so as to output the second AC electric energy and transmit the second AC electric energy to the water outlet pump module 2;

[0030] The hot water source switching module 9 is connected to the intelligent control module 7 and the power module 1, and is used to receive the fifth control signal and control the operation of the solenoid valve of the electric water heater.

[0031] In a specific embodiment, the power supply module 1 may adopt an electric energy control circuit, and the electric energy control circuit controls the transmission of electric energy; the water outlet pump module 2 may adopt a water outlet pump circuit to control the transmission of hot water and water pressure regulation; the current detection module 3 may adopt a current detection circuit to detect the current input to the water outlet pump module 2, and convert the detected current signal into a voltage signal; the infrared receiving module 4 is used to receive infrared sensing signals, and amplify and convert the infrared sensing signals, wherein the infrared sensing signals are emitted by an infrared generating device, and the infrared generating device emits an infrared sensing signal when the water outlet switch of a water outlet device such as a faucet is turned on, which will not be elaborated here; the feedback value adjustment module 5 may adopt an adding circuit and a feedback value adjustment circuit, and the adding circuit performs addition processing on the input signal, and the added signal is amplified and converted by the added signal. The signal controls the operation of the feedback regulation circuit, and the feedback regulation circuit performs voltage division regulation on the signal output by the current detection module 3; the above-mentioned solar water heating detection module 6 can adopt a water level judgment circuit and a temperature judgment circuit to respectively detect the water level and water temperature in the water tank of the solar water heater; the above-mentioned intelligent control module 7 can adopt a micro-control circuit and a gate drive circuit, the operation of the module is controlled by the micro-control circuit, and the gate drive circuit improves the driving ability of the input signal and controls the operation of the frequency conversion module 8; the above-mentioned frequency conversion module 8 can adopt a frequency conversion circuit composed of a rectifier filter circuit and an inverter regulation circuit to rectify and filter the input AC power, and then invert and regulate the processed power into three-phase AC power; the above-mentioned hot water source switching module 9 can adopt a hot water source switching circuit composed of a relay circuit to control the operation of the electric water heater solenoid valve.

[0032] In another embodiment, see Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The power supply module 1 includes a power input port and a first relay switch K1-1; the frequency conversion module 8 includes a first rectifier J1, a first capacitor C1, a first power tube Q1, a second power tube Q2, a third power tube Q3, a fourth power tube Q4, a fifth power tube Q5 and a sixth power tube Q6; the water outlet pump module 2 includes a first water outlet pump M;

[0033] Specifically, the first end and the second end of the power input port are respectively connected to the first end and the third end of the first relay switch K1-1, the second end and the fourth end of the first relay switch K1-1 are respectively connected to the first input end and the second input end of the first rectifier J1, the first output end of the first rectifier J1 is connected to one end of the first capacitor C1, the collector of the first power tube Q1, the collector of the third power tube Q3 and the collector of the fifth power tube Q5, and the second output end of the first rectifier J1 is connected to the other end of the first capacitor C1, the emitter of the second power tube Q2, the emitter of the fourth power tube Q4 and the collector of the sixth power tube Q 6, the emitter of the first power tube Q1 is connected to the first end of the first water outlet pump M and the collector of the second power tube Q2, the emitter of the third power tube Q3 is connected to the second end of the first water outlet pump M and the collector of the fourth power tube Q4, the emitter of the fifth power tube Q5 is connected to the collector of the sixth power tube Q6, the third end of the first water outlet pump M is connected to the current detection module 3, and the gate of the first power tube Q1, the gate of the second power tube Q2, the gate of the third power tube Q3, the gate of the fourth power tube Q4, the gate of the fifth power tube Q5 and the gate of the sixth power tube Q6 are all connected to the intelligent control module 7.

[0034] In a specific embodiment, the first relay switch K1-1 can be a normally closed switch, controlled by a first relay (not shown) to achieve power transmission control; the first power tube Q1, the second power tube Q2, the third power tube Q3, the fourth power tube Q4, the fifth power tube Q5 and the sixth power tube Q6 can all be IGBTs to form an inverter regulation circuit; the first water outlet pump M is used for hot water transmission and water pressure control, that is, to transmit hot water output by the electric water heater solenoid valve and the solar water heater.

[0035] Furthermore, the intelligent control module 7 includes a gate driving device and a first controller U1;

[0036] Specifically, the first IO terminal of the first controller U1 is connected to the input terminal of the gate driving device, and the first output terminal, the second output terminal, the third output terminal, the fourth output terminal, the fifth output terminal and the sixth output terminal of the gate driving device are respectively connected to the gate of the first power tube Q1, the gate of the second power tube Q2, the gate of the third power tube Q3, the gate of the fourth power tube Q4, the gate of the fifth power tube Q5 and the gate of the sixth power tube Q6.

[0037] In a specific embodiment, the gate drive device can be an IGBT drive device to form a gate drive circuit, and the specific model is not limited; the first controller U1 can be selected from, but not limited to, an STM32 microcontroller to form a microcontroller circuit.

[0038] Furthermore, the current detection module 3 includes a first transformer CT1, a first diode D1, a first resistor R1 and a second resistor R2;

[0039] Furthermore, the first end of the first transformer CT1 is connected to the emitter of the fifth power tube Q5, the second end of the first transformer CT1 is connected to the third end of the first water outlet pump M, the third end of the first transformer CT1 is connected to the anode of the first diode D1, the cathode of the first diode D1 is connected to the first end of the second resistor R2 and is connected to the fourth end of the first transformer CT1 through the first resistor R1, and the second end of the second resistor R2 is connected to the fourth IO terminal of the first controller U1 and the feedback value adjustment module 5.

[0040] In a specific embodiment, the first transformer CT1 can be a current transformer, with no limitation on the specific model, which is combined with the first diode D1, the first resistor R1 and the second resistor R2 to form a current detection circuit, wherein the second resistor R2 converts the detected current signal into a voltage signal.

[0041] Furthermore, the infrared receiving module 4 includes a first infrared receiving amplifier, a second infrared receiving amplifier, a fifth resistor R5, a sixth resistor R6, a first power supply VCC1, a first switching tube VT1, a second switching tube VT2, a seventh resistor R7 and an eighth resistor R8;

[0042] Specifically, the first infrared receiving amplifier device is connected to the base of the first switching tube VT1 through the fifth resistor R5, the second infrared receiving amplifier device is connected to the base of the second switching tube VT2 through the sixth resistor R6, the collector of the first switching tube VT1 and the collector of the second switching tube VT2 are both connected to the first power supply VCC1, the emitter of the first switching tube VT1 is connected to the second IO terminal of the first controller U1 and is grounded through the seventh resistor R7, and the emitter of the second switching tube VT2 is connected to the third IO terminal of the first controller U1 and is grounded through the eighth resistor R8.

[0043] In a specific embodiment, the above-mentioned first infrared receiving amplifying device and the second infrared receiving amplifying device are respectively used to receive infrared sensing signals emitted by a first infrared emitting device (not shown) and a second infrared emitting device (not shown), wherein the first infrared emitting device and the second infrared emitting device are respectively installed on different water outlet devices, and only emit infrared sensing signals when water is discharged from the water outlet devices, and the details are not repeated here; the above-mentioned first switching tube VT1 and the second switching tube VT2 can both be NPN type transistors.

[0044] It should be noted that the first infrared receiving amplifying device and the second infrared receiving amplifying device introduced here only detect the water output conditions of two water outlet devices, and the specific number of infrared receiving amplifying devices can be reasonably allocated according to the number of water outlet devices.

[0045] Furthermore, the feedback value adjustment module 5 includes a ninth resistor R9, a tenth resistor R10, a second diode D2, a third diode D3, an eleventh resistor R11, a twelfth resistor R12, a first operational amplifier OP1, a first adjustment tube G1 and a third resistor R3;

[0046] Specifically, the anode of the second diode D2 is connected to the emitter of the first switching tube VT1 through the ninth resistor R9, the anode of the third diode D3 is connected to the emitter of the second switching tube VT2 through the tenth resistor R10, the cathode of the second diode D2 is connected to the cathode of the third diode D3 and the non-inverting terminal of the first operational amplifier OP1, the inverting terminal of the first operational amplifier OP1 is connected to one end of the twelfth resistor R12 and is grounded through the eleventh resistor R11, the output end of the first operational amplifier OP1 is connected to the other end of the twelfth resistor R12 and the gate of the first regulating tube G1, the drain of the first regulating tube G1 is connected to the second end of the second resistor R2 through the third resistor R3, and the source of the first regulating tube G1 is connected to the fourth end of the first transformer CT1.

[0047] In a specific embodiment, the first operational amplifier OP1 may be, but is not limited to, an OP07 operational amplifier, and cooperates with a ninth resistor R9, a tenth resistor R10, a second diode D2, a third diode D3, an eleventh resistor R11, and a twelfth resistor R12 to form an adding circuit; the first regulating tube G1 may be an N-channel enhancement type MOS tube, and cooperates with the third resistor R3 to form a feedback value regulating circuit.

[0048] It should be noted that the number of signals input to the first operational amplifier OP1 is determined by the number of output ports of the infrared receiving module 4 , which will not be elaborated here.

[0049] Furthermore, the solar water heating detection module 6 includes a second power supply VCC2, a thirteenth resistor R13, a fourth resistor R4, a third switch tube VT3, a first detection needle A, a second detection needle B, a temperature detection device, a first threshold device, a first comparator A1 and a first logic chip U2;

[0050] Specifically, the second power supply VCC2 is connected to one end of the thirteenth resistor R13 and one end of the fourth resistor R4, the other end of the thirteenth resistor R13 is connected to the second detection pin B, the base of the third switch tube VT3 is connected to the first detection pin A, the collector of the third switch tube VT3 is connected to the other end of the fourth resistor R4 and the first input end of the first logic chip U2, the emitter of the third switch tube VT3 is grounded, the second input end of the first logic chip U2 is connected to the output end of the first comparator A1, the inverting end and the non-inverting end of the first comparator A1 are respectively connected to the temperature detection device and the first threshold device, and the output end of the first logic chip U2 is connected to the fifth IO end of the first controller U1.

[0051] In a specific embodiment, the above-mentioned first detection needle A and the second detection needle B are both used to detect the water level of the solar water heater tank, wherein the first detection needle A is used to detect the lowest water level, and the second detection needle B is used to establish an electric energy circuit with the first detection needle A; the above-mentioned third switch tube VT3 can be an NPN transistor; the above-mentioned first logic chip U2 can be a logic chip, and the specific model is not limited; the above-mentioned first comparator A1 can be an LM393 comparator, and the first threshold device provides a low temperature threshold.

[0052] Furthermore, the hot water source switching module 9 includes a third power supply VCC3, a fourth diode D4, a second relay K2, a fourth switch tube VT4, a second relay switch K2-1 and an electric water heater solenoid valve;

[0053] Specifically, the third power supply VCC3 is connected to the cathode of the fourth diode D4 and one end of the second relay K2, the anode of the fourth diode D4 is connected to the other end of the second relay K2 and the collector of the fourth switch tube VT4, the emitter of the fourth switch tube VT4 is grounded, the base of the fourth switch tube VT4 is connected to the sixth IO terminal of the first controller U1, one end of the second relay switch K2-1 is connected to the first end of the power input port, the other end of the second relay switch K2-1 is connected to the first end of the electric water heater solenoid valve, and the second end of the electric water heater solenoid valve is connected to the second end of the power input port.

[0054] In a specific embodiment, the fourth switch tube VT4 can be an NPN transistor to control the operation of the second relay K2; the second relay switch K2-1 can be a normally open switch, which is controlled by the second relay K2 and controls the operation of the electric water heater solenoid valve, which transmits the hot water provided by the electric water heater.

[0055] The present invention provides a central hot water energy-saving remote control device, which is provided with electric energy by a power input port, and then transmitted by a first relay switch K1-1. The first rectifier J1 and the first capacitor C1 perform rectification and filtering processing. The first controller U1 adjusts the output pulse signal according to the signal fed back by the current detection module 3, and controls the first power tube Q1, the second power tube Q2, the third power tube Q3, the fourth power tube Q4, the fifth power tube Q5 and the sixth power tube Q6 through the gate drive device to perform inversion regulation to complete the regulation of the first water outlet pump M. At the same time, the first infrared receiving amplifier device and the second infrared receiving amplifier device judge the water outlet condition of the water outlet device by receiving the infrared sensing signal, and respectively control the first switch tube VT1 and the second switch tube VT2 to be turned on, and the first operational amplifier OP1 cooperates with the surrounding components to perform addition processing to adjust the conduction degree of the first power tube Q1. When the water outlet device is in operation, the water outlet condition of the first power tube Q1 is adjusted. When the amount is larger, the signal voltage output by the first operational amplifier OP1 is larger, and the conduction angle of the first power tube Q1 is larger, so that the voltage value of the signal output by the current detection module 3 is smaller, and the first controller U1 increases the electric energy input to the first water outlet pump M, so that the water pressure of the hot water transmission is increased, and the situation of insufficient water pressure caused by water outlet devices discharging water at the same time is avoided. At the same time, the central hot water is first provided by the solar water heater. When the water level in the solar water heater tank is lower than the first detection needle A, the third switch tube VT3 will be cut off, and the first input end of the first logic chip U2 is high, so that the first controller U1 controls the fourth switch tube VT4 to turn on, and controls the electric water heater solenoid valve to transmit hot water through the second relay switch K2-1, or when the water temperature in the solar water heater tank is lower than the low temperature threshold provided by the first threshold device, the first comparator A1 outputs a high level, and the first controller U1 also controls the electric water heater solenoid valve to transmit hot water.

[0056] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0057] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A central hot water energy-saving remote control device, characterized in that: The central hot water energy-saving remote control device includes: a power supply module, a water outlet pump module, a current detection module, an infrared receiving module, a feedback value adjustment module, a solar hot water detection module, an intelligent control module, a frequency conversion module, and a hot water source switching module; The power supply module is used to provide the first AC power and control the transmission of the first AC power; The water outlet pump module is connected to the frequency conversion module and is used to receive the electric energy output by the frequency conversion module and adjust the speed of the water outlet pump; The current detection module is connected to the water pump module and is used to isolate and detect the current input to the water pump module and convert the detected current signal into a first voltage signal; The infrared receiving module is used to receive the first infrared sensing signal and the second infrared sensing signal and amplify the received signals, and convert the amplified first infrared sensing signal and the second infrared sensing signal into a second voltage signal and a third voltage signal respectively; the first infrared emitting device and the second infrared emitting device respectively emit the first infrared sensing signal and the second infrared sensing signal, wherein the first infrared emitting device and the second infrared emitting device are respectively installed on different water outlet devices, and the first infrared sensing signal and the second infrared sensing signal are emitted only when the water outlet device is discharging water; The feedback value adjustment module is connected to the infrared receiving module and the current detection module, and is used to perform addition processing on the input third voltage signal and the second voltage signal and output a first control signal, and is used to control the operation of the feedback value adjustment circuit through the first control signal, and is used to perform voltage division adjustment processing on the first voltage signal through the feedback value adjustment circuit; The solar water heating detection module is used to detect the temperature of hot water in the solar water heater and output a second control signal when the temperature is lower than a set temperature threshold, to detect the water level of the solar water heater tank and output a third control signal, and to perform an OR logic calculation on the third control signal and the second control signal and output a fourth control signal; The intelligent control module is connected to the solar water heating detection module, the infrared receiving module and the current detection module, and is used to receive the fourth control signal and output a fifth control signal to control the operation of the hot water source switching module, and is used to output a pulse signal and adjust the pulse width of the pulse signal according to the first voltage signal; and is used to receive the signal output by the infrared receiving module; The frequency conversion module is connected to the intelligent control module and the power supply module, and is used to receive the pulse signal through the frequency conversion circuit and perform rectification, filtering and inversion regulation on the electric energy output by the power supply module, and output the second AC electric energy and transmit the second AC electric energy to the water outlet pump module; The hot water source switching module is connected to the intelligent control module and the power supply module, and is used to receive the fifth control signal and control the operation of the solenoid valve of the electric water heater.

2. A central hot water energy-saving remote control device according to claim 1, characterized in that: The power supply module includes a power input port and a first relay switch; the frequency conversion module includes a first rectifier, a first capacitor, a first power tube, a second power tube, a third power tube, a fourth power tube, a fifth power tube and a sixth power tube; the water outlet pump module includes a first water outlet pump; The first end and the second end of the power input port are respectively connected to the first end and the third end of the first relay switch, the second end and the fourth end of the first relay switch are respectively connected to the first input end and the second input end of the first rectifier, the first output end of the first rectifier is connected to one end of the first capacitor, the collector of the first power tube, the collector of the third power tube and the collector of the fifth power tube, the second output end of the first rectifier is connected to the other end of the first capacitor, the emitter of the second power tube, the emitter of the fourth power tube and the emitter of the sixth power tube, the emitter of the first power tube is connected to the first end of the first water outlet pump and the collector of the second power tube, the emitter of the third power tube is connected to the second end of the first water outlet pump and the collector of the fourth power tube, the emitter of the fifth power tube is connected to the collector of the sixth power tube, the third end of the first water outlet pump is connected to the current detection module, and the gate of the first power tube, the gate of the second power tube, the gate of the third power tube, the gate of the fourth power tube, the gate of the fifth power tube and the gate of the sixth power tube are all connected to the intelligent control module.

3. A central hot water energy-saving remote control device according to claim 2, characterized in that: The intelligent control module includes a gate driving device and a first controller; The first IO terminal of the first controller is connected to the input terminal of the gate driving device, and the first output terminal, the second output terminal, the third output terminal, the fourth output terminal, the fifth output terminal and the sixth output terminal of the gate driving device are respectively connected to the gate of the first power tube, the gate of the second power tube, the gate of the third power tube, the gate of the fourth power tube, the gate of the fifth power tube and the gate of the sixth power tube.

4. A central hot water energy-saving remote control device according to claim 3, characterized in that: The current detection module includes a first mutual inductor, a first diode, a first resistor and a second resistor; The first end of the first mutual inductor is connected to the emitter of the fifth power tube, the second end of the first mutual inductor is connected to the third end of the first water outlet pump, the third end of the first mutual inductor is connected to the anode of the first diode, the cathode of the first diode is connected to the first end of the second resistor and is connected to the fourth end of the first mutual inductor through the first resistor, and the second end of the second resistor is connected to the fourth IO terminal of the first controller and the feedback value adjustment module.

5. A central hot water energy-saving remote control device according to claim 4, characterized in that: The infrared receiving module includes a first infrared receiving amplifying device, a second infrared receiving amplifying device, a fifth resistor, a sixth resistor, a fourth resistor, a first power supply, a first switching tube, a second switching tube, a seventh resistor and an eighth resistor; The first infrared receiving amplifier is connected to the base of the first switching tube through a fifth resistor, the second infrared receiving amplifier is connected to the base of the second switching tube through a sixth resistor, the collector of the first switching tube and the collector of the second switching tube are both connected to the first power supply, the emitter of the first switching tube is connected to the second IO terminal of the first controller and is grounded through a seventh resistor, and the emitter of the second switching tube is connected to the third IO terminal of the first controller and is grounded through an eighth resistor.

6. A central hot water energy-saving remote control device according to claim 5, characterized in that: The feedback value adjustment module includes a ninth resistor, a tenth resistor, a second diode, a third diode, an eleventh resistor, a twelfth resistor, a first operational amplifier, a first adjustment tube and a third resistor; The anode of the second diode is connected to the emitter of the first switching tube through a ninth resistor, the anode of the third diode is connected to the emitter of the second switching tube through a tenth resistor, the cathode of the second diode is connected to the cathode of the third diode and the non-inverting terminal of the first operational amplifier, the inverting terminal of the first operational amplifier is connected to one end of the twelfth resistor and is grounded through an eleventh resistor, the output end of the first operational amplifier is connected to the other end of the twelfth resistor and the gate of the first regulating tube, the drain of the first regulating tube is connected to the second end of the second resistor through the third resistor, and the source of the first regulating tube is connected to the fourth end of the first mutual inductor.

7. A central hot water energy-saving remote control device according to claim 3, characterized in that: The solar water heating detection module includes a second power supply, a thirteenth resistor, a fourth resistor, a third switch tube, a first detection needle, a second detection needle, a temperature detection device, a first threshold device, a first comparator and a first logic chip; The second power supply is connected to one end of the thirteenth resistor and one end of the fourth resistor, the other end of the thirteenth resistor is connected to the second detection needle, the base of the third switching tube is connected to the first detection needle, the collector of the third switching tube is connected to the other end of the fourth resistor and the first input end of the first logic chip, the emitter of the third switching tube is grounded, the second input end of the first logic chip is connected to the output end of the first comparator, the inverting end and the non-inverting end of the first comparator are respectively connected to the temperature detection device and the first threshold device, and the output end of the first logic chip is connected to the fifth IO end of the first controller.

8. A central hot water energy-saving remote control device according to claim 3, characterized in that: The hot water source switching module includes a third power supply, a fourth diode, a second relay, a fourth switch tube, a second relay switch and an electric water heater solenoid valve; The third power supply is connected to the cathode of the fourth diode and one end of the second relay, the anode of the fourth diode is connected to the other end of the second relay and the collector of the fourth switch tube, the emitter of the fourth switch tube is grounded, the base of the fourth switch tube is connected to the sixth IO terminal of the first controller, one end of the second relay switch is connected to the first end of the power input port, the other end of the second relay switch is connected to the first end of the electric water heater solenoid valve, and the second end of the electric water heater solenoid valve is connected to the second end of the power input port.

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