Instant water drinking module

Abstract

The utility model relates to the technical field of water purification and heating, in particular to an instant-heating drinking water module, which comprises a main control module, a water supply module, an instant-heating water supply module, an instant-heating water supply module, an instant-heating water supply module and an instant-heating water supply module, a communication module; a display module; the load module comprises a temperature measurement unit, an atmosphere lamp unit, a fan unit, a disinfection unit and an air pump unit, the temperature measurement unit, the atmosphere lamp unit, the fan unit, the disinfection unit and the air pump unit are all controlled by CNM7320A4S2D chip output pins, the temperature measurement unit comprises a triode Q6, an MOS tube Q7 and a PTC subunit, and the PTC subunit measures the water temperature based on a digital temperature sensor. According to the utility model, the communication module realizes remote communication, remote control can be realized, the convenience is greatly improved, the water temperature is displayed and measured through the display module and the temperature measuring unit, and the practicability is stronger.

Description

Technical Field

[0001] This utility model relates to the field of purified and heated water technology, specifically to an instant hot water module. Background Technology

[0002] With the fast pace of modern life and the pursuit of a healthy lifestyle, the demand for instant hot water is increasing. Most traditional water dispensers use a storage-type heating method, which stores water in a heating tank and keeps it warm for use at any time. However, this design has several obvious drawbacks, including energy waste, scale formation, the risk of bacterial growth, and changes in water quality due to prolonged heat preservation.

[0003] In recent years, instant hot water technology has gradually gained market popularity as an innovative solution. The core of instant hot water dispensers lies in their ability to heat water to the required temperature within seconds without the need for prolonged heat preservation, significantly reducing energy consumption and improving drinking water safety. The key to this technology is the efficient heating element and precise temperature control mechanism, which ensures rapid response and a stable supply of hot water. However, heating still takes some time during use, and there is no means of remote control. Therefore, an instant hot water module is needed to enable remote control functionality. Utility Model Content

[0004] The purpose of this invention is to provide an instant hot water module to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An instant hot water module includes:

[0007] The main control module uses a CNM7320A4S2D chip to control the operation of each module and the heating element;

[0008] The communication module uses a WBR3 chip to implement WIFI communication and an AMS1117 chip as a voltage regulator. The WBR3 chip and the CNM7320A4S2D chip are connected for signal transmission.

[0009] The display module uses a TM1668 chip and a digital tube to implement the display function. Both the TM1668 chip and the digital tube are connected to the CNM7320A4S2D chip for signal transmission.

[0010] The load module includes a temperature measuring unit, an ambient light unit, a fan unit, a disinfection unit, and an air pump unit. The temperature measuring unit, the ambient light unit, the fan unit, the disinfection unit, and the air pump unit are all controlled by the output pins of the CNM7320A4S2D chip. The temperature measuring unit includes a transistor Q6, a MOSFET Q7, and a PTC sub-unit. The PTC sub-unit measures the water temperature based on a digital temperature sensor.

[0011] Preferably, the CNM7320A4S2D chip in the main control module is equipped with a 5V power supply.

[0012] Preferably, in the communication module, the input terminal of the AMS1117 chip is connected to a 5V power supply, and the output terminal of the AMS1117 chip is connected to a 3.3V power supply. The output terminal of the AMS1117 chip is also connected to the VCC pin of the WBR3 chip. A resistor R52 is connected between the VCC pin and the EN pin of the WBR3 chip. The TXD pin of the WBR3 chip is connected to the RX pin of the CNM7320A4S2D chip through a transistor Q14. The base of the transistor Q14 is connected to the second terminal of the resistor R51. The first terminal of the resistor R51 is connected to both the 3.3V power supply and the first terminal of the resistor R50. The second terminal of the resistor R50 is connected to the TXD pin of the WBR3 chip. The collector of transistor Q14 is connected to the TXD pin of the WBR3 chip, and the emitter of transistor Q14 is connected to the RX pin of the CNM7320A4S2D chip. The RXD pin of the WBR3 chip is connected to the TX pin of the CNM7320A4S2D chip through transistor Q15. The base of transistor Q15 is connected to the first terminal of resistor R49. The second terminal of resistor R49 is connected to both 3.3V and the second terminal of resistor R48. The first terminal of resistor R48 is connected to the RXD pin of the WBR3 chip. The collector of transistor Q15 is connected to the RXD pin of the WBR3 chip, and the emitter of transistor Q15 is connected to the TX pin of the CNM7320A4S2D chip.

[0013] Preferably, an RGB ambient light module is also included. The RGB ambient light module is used to display multiple colors. The RGB ambient light module includes indicator lights LED7 and LED8, resistors R13, R14, and R15. Indicator lights LED7 and LED8 each include B, R, and G lights. The first end of all B, R, and G lights is connected to a 5V power supply. The second end of each of the two B lights is connected to the first end of resistor R13, which is connected to the output pin of the CNM7320A4S2D chip. The second end of each of the two R lights is connected to the first end of resistor R14, which is connected to the output pin of the CNM7320A4S2D chip. The second end of each of the two G lights is connected to the first end of resistor R15, which is connected to the output pin of the CNM7320A4S2D chip.

[0014] Preferably, the DIO, CLK, and STB pins of the TM1668 chip in the display module are connected to the corresponding pins of the CNM7320A4S2D chip, the K1 pin of the TM1668 chip is connected to a 5V power supply, the GND pin of the TM1668 chip is grounded, and the output pins of the TM1668 chip are connected to the corresponding pins of the two-digit LED display.

[0015] Preferably, the device also includes a button module for setting parameters. The button module includes several buttons, which are connected to the input pins of the CNM7320A4S2D chip via resistors.

[0016] Preferably, the device also includes an indicator module, which comprises a common cathode digital tube and an alarm unit. The common cathode of the common cathode digital tube is connected to the GR3 pin of the TM1668 chip, and the multiple anodes of the common cathode digital tube are connected to each pin of the digital tube through resistors. The alarm unit includes a buzzer BUZ and a resistor R1. The first end of the buzzer BUZ is connected to the first end of the resistor R1, the second end of the buzzer BUZ is grounded, and the second end of the resistor R1 is connected to the output pin of the CNM7320A4S2D chip.

[0017] Preferably, the base of transistor Q6 in the temperature measuring unit is connected to the output pin of the CNM7320A4S2D chip through resistor R18, the emitter of transistor Q6 is grounded, the collector of transistor Q6 is connected to a 12V power supply through resistors R16 and R17, the source of MOSFET Q7 is connected to a 12V power supply, the gate of MOSFET Q7 is connected between resistors R16 and R17, the drain of MOSFET Q7 is connected to the first terminal of the PTC sub-unit, the second terminal of the PTC sub-unit is grounded, and the output pin of the PTC sub-unit is connected to the corresponding input pin of the CNM7320A4S2D chip.

[0018] Preferably, the ambient light unit includes a transistor Q5 and an ambient light LIGHT. The base of transistor Q5 is connected to the output pin of the CNM7320A4S2D chip through a resistor R20, the emitter of transistor Q5 is grounded, the first terminal of ambient light LIGHT is connected to a 12V power supply, and the second terminal of ambient light LIGHT is connected to the collector of transistor Q5.

[0019] Preferably, the fan unit includes a transistor Q3, a MOSFET Q4, and a FAN subunit. The base of transistor Q3 is connected to the output pin of the CNM7320A4S2D chip through resistor R24, the emitter of transistor Q3 is grounded, the collector of transistor Q3 is connected to a 12V power supply through resistors R22 and R23, the source of MOSFET Q4 is connected to a 12V power supply, the gate of MOSFET Q4 is connected between resistors R22 and R23, the drain of MOSFET Q4 is connected to the first terminal of the FAN subunit, and the second terminal of the FAN subunit is grounded. The FAN subunit performs the operation of stirring drinking water based on a motor.

[0020] Preferably, the disinfection unit includes a MOSFET Q1 and a UV sub-unit. The gate of the MOSFET Q1 is connected to the output pin of the CNM7320A4S2D chip through a resistor R26. The source of the MOSFET Q1 is grounded, and the drain of the MOSFET Q1 is connected to the second terminal of the UV sub-unit. The first terminal of the UV sub-unit is connected to a 12V power supply. The 12V power supply is also connected to the negative terminal of a diode D1. The positive terminal of the diode D1 is connected to the drain of the MOSFET Q1. The UV sub-unit performs the disinfection operation based on the ultraviolet lamp.

[0021] Preferably, the air pump unit includes a MOSFET Q2 and a QB sub-unit. The gate of the MOSFET Q2 is connected to the output pin of the CNM7320A4S2D chip through a resistor R28. The source of the MOSFET Q2 is grounded, and the drain of the MOSFET Q2 is connected to the second terminal of the QB sub-unit. The first terminal of the QB sub-unit is connected to a 12V power supply. The 12V power supply is also connected to the negative terminal of the diode D2. The positive terminal of the diode D2 is connected to the drain of the MOSFET Q2. The QB sub-unit controls the water flow rate based on the air pump.

[0022] Preferably, the system also includes a power module, which includes an XL1509 chip. The VIN terminal of the XL1509 chip is connected to a 12V power supply, the OUTPUT terminal of the XL1509 chip is connected to the second terminal of inductor L2, the first terminal of inductor L2 is connected to a 5V power supply, the FEEDBACK terminal of the XL1509 chip is connected to the first terminal of inductor L2, and the ON / OFF terminal and four GND terminals of the XL1509 chip are all grounded.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] This utility model enables remote communication and control through a communication module, greatly improving convenience. It also displays and measures water temperature through a display module and a temperature measuring unit, making it even more practical. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 This is a circuit diagram of the main control module in the utility model.

[0027] Figure 3 This is a circuit diagram of the communication module in the utility model.

[0028] Figure 4 This is a circuit diagram of the RGB ambient light module in the utility model.

[0029] Figure 5 This is a circuit diagram of the display module in the utility model.

[0030] Figure 6This is a circuit diagram of the button module in the utility model.

[0031] Figure 7 This is a circuit diagram of the indicator module in the utility model.

[0032] Figure 8 This is a circuit diagram of the temperature measuring unit in the utility model.

[0033] Figure 9 This is a circuit diagram of the ambient light unit in the utility model.

[0034] Figure 10 This is a circuit diagram of the fan unit in the utility model.

[0035] Figure 11 This is a circuit diagram of the disinfection unit in the utility model.

[0036] Figure 12 This is a circuit diagram of the air pump unit in the utility model.

[0037] Figure 13 This is a circuit diagram of the power supply module in the utility model.

[0038] In the picture:

[0039] 1. Main control module;

[0040] 2. Communication module;

[0041] 3. RGB ambient lighting module;

[0042] 4. Display module;

[0043] 5. Button module;

[0044] 6. Indicator module;

[0045] 7. Load module; 70. Temperature measurement unit; 71. Ambient lighting unit; 72. Fan unit; 73. Disinfection unit; 74. Air pump unit;

[0046] 8. Power supply module. Detailed Implementation

[0047] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0048] Please see Figures 1-13 The present invention provides the following technical solution:

[0049] An instant hot water module includes:

[0050] Main control module 1 uses the CNM7320A4S2D chip to control the operation of each module and heating element;

[0051] Communication module 2 uses a WBR3 chip to implement WIFI communication and an AMS1117 chip as a voltage regulator. The WBR3 chip and the CNM7320A4S2D chip are connected for signal transmission.

[0052] Display module 4 uses a TM1668 chip and a digital tube to implement the display function. Both the TM1668 chip and the digital tube are connected to the CNM7320A4S2D chip for signal transmission.

[0053] The load module 7 includes a temperature measuring unit 70, an ambient light unit 71, a fan unit 72, a disinfection unit 73, and an air pump unit 74. The temperature measuring unit 70, the ambient light unit 71, the fan unit 72, the disinfection unit 73, and the air pump unit 74 are all controlled by the output pins of the CNM7320A4S2D chip. The temperature measuring unit 70 includes a transistor Q6, a MOSFET Q7, and a PTC sub-unit. The PTC sub-unit measures the water temperature based on a digital temperature sensor.

[0054] In this embodiment, the CNM7320A4S2D chip in the main control module 1 is equipped with a 5V power supply. The 5V power supply is used in conjunction with capacitors C13 and EC5, which serve as filters.

[0055] Specifically, in communication module 2, the input terminal of the AMS1117 chip is connected to a 5V power supply and filtered by capacitor EC3. The output terminal of the AMS1117 chip is connected to a 3.3V power supply and filtered by EC4. The output terminal of the AMS1117 chip is also connected to the VCC pin of the WBR3 chip. A resistor R52 is connected between the VCC pin and the EN pin of the WBR3 chip. The TXD pin of the WBR3 chip is connected to the RX pin of the CNM7320A4S2D chip through transistor Q14. The base of transistor Q14 is connected to the second terminal of resistor R51. The first terminal of resistor R51 is connected to both the 3.3V power supply and the first terminal of resistor R50. The second terminal of resistor R50 is connected to the TXD pin of the WBR3 chip. The collector of transistor Q14 is connected to the TXD pin of the WBR3 chip. The emitter of transistor Q14 is connected to the RX pin of the CNM7320A4S2D chip. The RXD pin of the WBR3 chip is connected to the TX pin of the CNM7320A4S2D chip through transistor Q15. The base of transistor Q15 is connected to the first terminal of resistor R49. The second terminal of resistor R49 is connected to both 3.3V and the second terminal of resistor R48. The first terminal of resistor R48 is connected to the RXD pin of the WBR3 chip. The collector of transistor Q15 is connected to the RXD pin of the WBR3 chip, and the emitter of transistor Q15 is connected to the TX pin of the CNM7320A4S2D chip. Both transistors Q14 and Q15 are NPN transistors. The WBR3 chip can be remotely controlled, allowing users to remotely control the preheating of drinking water and further shorten the water dispensing time.

[0056] Specifically, it also includes an RGB ambient light module 3, which is used to display multiple colors. The RGB ambient light module 3 includes indicator lights LED7 and LED8, resistors R13, R14, and R15. Indicator lights LED7 and LED8 each include B, R, and G lights. The first end of all B, R, and G lights is connected to a 5V power supply. The second end of each of the two B lights is connected to the first end of resistor R13, which is connected to the output pin of the CNM7320A4S2D chip. The second end of each of the two R lights is connected to the first end of resistor R14, which is connected to the output pin of the CNM7320A4S2D chip. The second end of each of the two G lights is connected to the first end of resistor R15, which is connected to the output pin of the CNM7320A4S2D chip. The CNM7320A4S2D chip controls the color of the RGB ambient light module 3 through a PWM signal, which can present the user's preferred color and improve the visual appeal.

[0057] Specifically, the DIO, CLK, and STB pins of the TM1668 chip in display module 4 are connected to the corresponding pins of the CNM7320A4S2D chip, and decoupled with capacitors C9, C10, and C11. The K1 pin of the TM1668 chip is connected to a 5V power supply and filtered with capacitors C8 and C12. The GND pin of the TM1668 chip is grounded. The output pins of the TM1668 chip are connected to the corresponding pins of the two-digit digital tube to display the water temperature in real time for user convenience.

[0058] Specifically, it also includes a button module 5, which is used to set parameters. The button module 5 includes several buttons, which are connected to the input pins of the CNM7320A4S2D chip through resistors. Different buttons have different functions, and users can set relevant parameters through the buttons.

[0059] Specifically, it also includes an indicator module 6, which includes a common cathode digital tube and an alarm unit. The common cathode of the common cathode digital tube is connected to the GR3 pin of the TM1668 chip, and the multiple anodes of the common cathode digital tube are connected to each pin of the digital tube through resistors. The alarm unit includes a buzzer BUZ and a resistor R1. The first end of the buzzer BUZ is connected to the first end of the resistor R1, the second end of the buzzer BUZ is grounded, and the second end of the resistor R1 is connected to the output pin of the CNM7320A4S2D chip. The alarm unit can promptly remind the user to prevent the user from forgetting.

[0060] Specifically, the base of transistor Q6 in temperature sensing unit 70 is connected to the output pin of CNM7320A4S2D chip through resistor R18. Transistor Q6 is an NPN transistor, and its emitter is grounded. The first end of resistor R19 is connected to the base of transistor Q6, and the second end of resistor R19 is connected to the emitter of transistor Q6. The collector of transistor Q6 is connected to a 12V power supply through resistors R16 and R17. The source of MOSFET Q7 is connected to a 12V power supply. MOSFET Q7 is a depletion-mode PMSO transistor, and its gate is connected between resistors R16 and R17. The drain of MOSFET Q7 is connected to the first terminal of PTC subunit, and the second terminal of PTC subunit is grounded. The output pin of PTC subunit is connected to the corresponding input pin of CNM7320A4S2D chip. This allows for both displaying water temperature and facilitating the CNM7320A4S2D chip's control of heating drinking water.

[0061] Specifically, the ambient light unit 71 includes a transistor Q5 and an ambient light lamp LIGHT. The transistor Q5 is an NPN transistor. The base of the transistor Q5 is connected to the output pin of the CNM7320A4S2D chip through a resistor R20. The emitter of the transistor Q5 is grounded. The first end of the resistor R21 is connected to the base of the transistor Q5, and the second end of the resistor R21 is connected to the emitter of the transistor Q5. The first end of the ambient light lamp LIGHT is connected to a 12V power supply, and the second end of the ambient light lamp LIGHT is connected to the collector of the transistor Q5.

[0062] Furthermore, the fan unit 72 includes a transistor Q3, a MOSFET Q4, and a FAN subunit. Transistor Q3 is an NPN transistor, and MOSFET Q4 is a depletion-mode PMSO transistor. The base of transistor Q3 is connected to the output pin of the CNM7320A4S2D chip through resistor R24, and the emitter of transistor Q3 is grounded. The first end of resistor R25 is connected to the base of transistor Q3, and the second end of resistor R25 is connected to the emitter of transistor Q3. The collector of transistor Q3 is connected to a 12V power supply through resistors R22 and R23. The source of MOSFET Q4 is connected to a 12V power supply, and the gate of MOSFET Q4 is connected between resistors R22 and R23. The drain of MOSFET Q4 is connected to the first terminal of the FAN subunit, and the second terminal of the FAN subunit is grounded. The FAN subunit performs the operation of stirring drinking water based on the motor.

[0063] In addition, the disinfection unit 73 includes a MOSFET Q1 and a UV sub-unit. The MOSFET Q1 is an enhancement-mode PMOS transistor. The gate of the MOSFET Q1 is connected to the output pin of the CNM7320A4S2D chip through a resistor R26. The source of the MOSFET Q1 is grounded. The first end of the resistor R27 is connected to the gate of the MOSFET Q1, and the second end of the resistor R27 is connected to the source of the MOSFET Q1. The drain of the MOSFET Q1 is connected to the second terminal of the UV sub-unit. The first terminal of the UV sub-unit is connected to a 12V power supply. The 12V power supply is also connected to the negative terminal of the diode D1. The positive terminal of the diode D1 is connected to the drain of the MOSFET Q1. The UV sub-unit completes the disinfection operation based on the ultraviolet lamp.

[0064] It is worth noting that the air pump unit 74 includes a MOSFET Q2 and a QB subunit. The MOSFET Q2 is an enhancement-mode PMOS transistor. The gate of the MOSFET Q2 is connected to the output pin of the CNM7320A4S2D chip through a resistor R28. The source of the MOSFET Q2 is grounded. The first end of the resistor R29 is connected to the gate of the MOSFET Q2, and the second end of the resistor R29 is connected to the source of the MOSFET Q2. The drain of the MOSFET Q2 is connected to the second end of the QB subunit. The first end of the QB subunit is connected to a 12V power supply. The 12V power supply is also connected to the negative terminal of the diode D2. The positive terminal of the diode D2 is connected to the drain of the MOSFET Q2. The QB subunit controls the water flow based on the air pump.

[0065] It is worth noting that the system also includes a power module 8, which includes an XL1509 chip. The VIN terminal of the XL1509 chip is connected to a 12V power supply and is filtered by capacitor EC1. The OUTPUT terminal of the XL1509 chip is connected to the second terminal of inductor L2. The first terminal of inductor L2 is connected to a 5V power supply and is filtered by capacitors C2 and EC2. The FEEDBACK terminal of the XL1509 chip is connected to the first terminal of inductor L2. The ON / OFF terminal and four GND terminals of the XL1509 chip are all grounded. The ON / OFF terminal of the XL1509 chip is at a low level, and the XL1509 chip is always working.

[0066] Finally, the input and output pins of the aforementioned chips are independent of each other, and the pins connected to different modules are not the same. The CNM7320A4S2D chip also controls the water pump and solenoid valve, thereby controlling the water output.

[0067] When in use, the instant hot water module of this utility model is controlled by the main control module 1, which controls the operation of each module, heating element, water pump, and solenoid valve. The user can remotely control it through the communication module 2. After the temperature measuring unit 70 measures the water temperature, the display module 4 displays the water temperature. The user can also directly set parameters through the button module 5. The alarm unit in the indicator module 6 can promptly remind the user. The RGB ambient light module 3 and ambient light unit 71 can provide a good visual experience and improve user comfort. The fan unit 72 can stir the drinking water to ensure that the drinking water is in full contact with the heating element and that the water is added evenly. The disinfection unit 73 can realize the disinfection function to improve the safety of drinking water. The air pump unit 74 can control the water flow to ensure that the drinking water reaches the set temperature.

[0068] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An instant hot water module, characterized in that, include: The main control module (1) uses a CNM7320A4S2D chip to control the operation of each module and the heating element; The communication module (2) uses a WBR3 chip to implement WIFI communication and uses an AMS1117 chip as a voltage regulator. The WBR3 chip and the CNM7320A4S2D chip are connected by a signal. The display module (4) uses a TM1668 chip and a digital tube to implement the display function. Both the TM1668 chip and the digital tube are connected to the CNM7320A4S2D chip for signal connection. The load module (7) includes a temperature measuring unit (70), an ambient light unit (71), a fan unit (72), a disinfection unit (73), and an air pump unit (74). The temperature measuring unit (70), the ambient light unit (71), the fan unit (72), the disinfection unit (73), and the air pump unit (74) are all controlled by the output pins of the CNM7320A4S2D chip. The temperature measuring unit (70) includes a transistor Q6, a MOSFET Q7, and a PTC subunit. The PTC subunit measures the water temperature based on a digital temperature sensor.

2. The instant hot water module according to claim 1, characterized in that: The CNM7320A4S2D chip in the main control module (1) is equipped with a 5V power supply.

3. The instant hot water module according to claim 1, characterized in that: In the communication module (2), the input terminal of the AMS1117 chip is connected to a 5V power supply, and the output terminal of the AMS1117 chip is connected to a 3.3V power supply. The output terminal of the AMS1117 chip is also connected to the VCC pin of the WBR3 chip. A resistor R52 is connected between the VCC pin and the EN pin of the WBR3 chip. The TXD pin of the WBR3 chip is connected to the RX pin of the CNM7320A4S2D chip through a transistor Q14. The base of the transistor Q14 is connected to the second terminal of the resistor R51. The first terminal of the resistor R51 is connected to both the 3.3V power supply and the first terminal of the resistor R50. The second terminal of the resistor R50 is connected to the TXD pin of the WBR3 chip. The collector of transistor Q14 is connected to the TXD pin of the WBR3 chip, and the emitter of transistor Q14 is connected to the RX pin of the CNM7320A4S2D chip. The RXD pin of the WBR3 chip is connected to the TX pin of the CNM7320A4S2D chip through transistor Q15. The base of transistor Q15 is connected to the first terminal of resistor R49. The second terminal of resistor R49 is connected to both 3.3V and the second terminal of resistor R48. The first terminal of resistor R48 is connected to the RXD pin of the WBR3 chip. The collector of transistor Q15 is connected to the RXD pin of the WBR3 chip, and the emitter of transistor Q15 is connected to the TX pin of the CNM7320A4S2D chip.

4. The instant hot water module according to claim 1, characterized in that: It also includes an RGB ambient light module (3), which is used to display multiple colors. The RGB ambient light module (3) includes indicator LED7, indicator LED8, resistor R13, resistor R14 and resistor R15. Indicator LED7 and indicator LED8 each include B lamp, R lamp and G lamp. The first end of all B lamp, R lamp and G lamp is connected to a 5V power supply. The second end of the two B lamps is connected to the first end of resistor R13. The second end of resistor R13 is connected to the output pin of CNM7320A4S2D chip. The second end of the two R lamps is connected to the first end of resistor R14. The second end of resistor R13 is connected to the output pin of CNM7320A4S2D chip. The second end of the two G lamps is connected to the first end of resistor R15. The second end of resistor R15 is connected to the output pin of CNM7320A4S2D chip.

5. The instant hot water module according to claim 1, characterized in that: The DIO, CLK and STB pins of the TM1668 chip in the display module (4) are connected to the corresponding pins of the CNM7320A4S2D chip, respectively. The K1 pin of the TM1668 chip is connected to a 5V power supply, the GND pin of the TM1668 chip is grounded, and the output pin of the TM1668 chip is connected to the corresponding pins of the two-digit digital tube.

6. The instant hot water module according to claim 1, characterized in that: It also includes a button module (5), which is used to set parameters. The button module (5) includes several buttons, which are connected to the input pins of the CNM7320A4S2D chip through resistors.

7. The instant hot water module according to claim 1, characterized in that: It also includes an indicator module (6), which includes a common cathode digital tube and an alarm unit. The common cathode of the common cathode digital tube is connected to the GR3 pin of the TM1668 chip. The multiple anodes of the common cathode digital tube are connected to each pin of the digital tube through resistors. The alarm unit includes a buzzer BUZ and a resistor R1. The first end of the buzzer BUZ is connected to the first end of the resistor R1, the second end of the buzzer BUZ is grounded, and the second end of the resistor R1 is connected to the output pin of the CNM7320A4S2D chip.

8. The instant hot water module according to claim 1, characterized in that: The base of transistor Q6 in the temperature measuring unit (70) is connected to the output pin of CNM7320A4S2D chip through resistor R18. The emitter of transistor Q6 is grounded. The collector of transistor Q6 is connected to 12V power supply through resistors R16 and R17. The source of MOSFET Q7 is connected to 12V power supply. The gate of MOSFET Q7 is connected between resistors R16 and R17. The drain of MOSFET Q7 is connected to the first terminal of PTC subunit. The second terminal of PTC subunit is grounded. The output pin of PTC subunit is connected to the corresponding input pin of CNM7320A4S2D chip. The ambient light unit (71) includes a transistor Q5 and an ambient light LIGHT. The base of the transistor Q5 is connected to the output pin of the CNM7320A4S2D chip through a resistor R20. The emitter of the transistor Q5 is grounded. The first end of the ambient light LIGHT is connected to a 12V power supply, and the second end of the ambient light LIGHT is connected to the collector of the transistor Q5. The fan unit (72) includes a transistor Q3, a MOSFET Q4, and a FAN subunit. The base of transistor Q3 is connected to the output pin of the CNM7320A4S2D chip through resistor R24. The emitter of transistor Q3 is grounded. The collector of transistor Q3 is connected to a 12V power supply through resistors R22 and R23. The source of MOSFET Q4 is connected to a 12V power supply. The gate of MOSFET Q4 is connected between resistors R22 and R23. The drain of MOSFET Q4 is connected to the first terminal of the FAN subunit. The second terminal of the FAN subunit is grounded. The FAN subunit performs the operation of stirring drinking water based on the motor.

9. The instant hot water module according to claim 1, characterized in that: The disinfection unit (73) includes a MOS transistor Q1 and a UV sub-unit. The gate of the MOS transistor Q1 is connected to the output pin of the CNM7320A4S2D chip through a resistor R26. The source of the MOS transistor Q1 is grounded. The drain of the MOS transistor Q1 is connected to the second terminal of the UV sub-unit. The first terminal of the UV sub-unit is connected to a 12V power supply. The 12V power supply is also connected to the negative terminal of the diode D1. The positive terminal of the diode D1 is connected to the drain of the MOS transistor Q1. The UV sub-unit completes the disinfection operation based on the ultraviolet lamp. The air pump unit (74) includes a MOS transistor Q2 and a QB sub-unit. The gate of the MOS transistor Q2 is connected to the output pin of the CNM7320A4S2D chip through a resistor R28. The source of the MOS transistor Q2 is grounded. The drain of the MOS transistor Q2 is connected to the second terminal of the QB sub-unit. The first terminal of the QB sub-unit is connected to a 12V power supply. The 12V power supply is also connected to the negative terminal of the diode D2. The positive terminal of the diode D2 is connected to the drain of the MOS transistor Q2. The QB sub-unit performs the operation of controlling the water flow based on the air pump.

10. The instant hot water module according to claim 1, characterized in that: It also includes a power module (8), which includes an XL1509 chip. The VIN terminal of the XL1509 chip is connected to a 12V power supply. The OUTPUT terminal of the XL1509 chip is connected to the second terminal of inductor L2. The first terminal of inductor L2 is connected to a 5V power supply. The FEEDBACK terminal of the XL1509 chip is connected to the first terminal of inductor L2. The ON / OFF terminal and four GND terminals of the XL1509 chip are all grounded.

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