RFID card swiping water outlet function key

Abstract

The utility model discloses an RFID card swiping water outlet function button, and relates to the technical field of boiled water button circuits. Comprising an upper shell, a bottom shell, a PCB, a radio frequency induction circuit, a single chip microcomputer circuit, a power supply circuit, a water outlet valve driving circuit and an indicator lamp circuit, the upper shell and the bottom shell are matched to seal the PCB, the PCB can be effectively protected, and water or steam can be effectively prevented from entering the upper shell and the bottom shell to damage the PCB; the radio frequency induction circuit on the PCB is used for providing an RFID card swiping wireless induction function, the radio frequency induction circuit is used as a function key, and the water outlet valve driving circuit is used for driving and controlling a hot water outlet valve; when the RFID card swiping sheet is placed on the surface of the key, water can flow out, and when the RFID card swiping sheet leaves the surface of the key, the water can flow out immediately; children can be prevented from using boiled water alone, and a teacher needs to accompany and control the boiled water.

Description

TECHNICAL FIELD

[0001] The utility model relates to boiling water button circuit technical field, concretely is a kind of RFID card function button of water outlet. BACKGROUND

[0002] Water heater is named hot water dispenser, it is generally used in family, office, school etc., especially in kindergarten, children will often drink water, for supplementing the water that body lacks, usually cooperate with water purification equipment;Traditional water dispenser button water outlet is general mechanical type and touch type switch control, campus water dispenser is boiling water and warm boiling water outlet to provide for teacher (adult) and child use.

[0003] Patent (201721046471.1) discloses a water dispenser, including face shell, faucet, button, slider and push rod, the button is installed on the face shell, the slider is slidably connected to the button, one end of the push rod is connected with the button, the other end of the push rod is connected with the faucet, when the button is pressed or released, the push rod is driven by the button to open or close the faucet;The water dispenser further includes a push rod mounting portion mounted on the face shell, the push rod is slidably arranged in the push rod mounting portion, the push rod mounting portion is provided with a limiting piece for locking the button when cooperating with the slider and unlocking the button when disengaging from the slider. This patent product can effectively avoid the accident of scalding by controlling the opening and closing of the faucet, and has the advantages of convenient use and safety and reliability.

[0004] However, it does not really solve the scalding accident of boiling water, especially when used in kindergarten, anyone can press the button, and the hot water of the flowing water is still at risk of scalding. INVENTION CONTENTS

[0005] The utility model aims at providing a kind of RFID card function button of water outlet, to solve the problems presented in the above background.

[0006] To solve the above technical problems, the utility model provides the following technical scheme:

[0007] A kind of RFID card function button of water outlet, including upper shell, bottom shell and PCB board,

[0008] The PCB board is located between upper shell and bottom shell, and the upper shell and bottom shell are fixedly connected;

[0009] The surface of the PCB board is provided with radio frequency induction circuit, single-chip microcomputer circuit, power supply circuit, water outlet valve driving circuit and indicator light circuit;

[0010] The radio frequency induction circuit, the single-chip microcomputer circuit, the outlet valve driving circuit and the indicator lamp circuit are electrically connected with the power supply circuit respectively, and the radio frequency induction circuit, the power supply circuit, the outlet valve driving circuit and the indicator lamp circuit are electrically connected with the single-chip microcomputer circuit respectively.

[0011] Preferably, the bottom shell is provided with elastic clamping strips on both sides of the outer wall, which are symmetrical with the upper shell; the bottom of the upper shell is provided with a threaded groove, and the bottom of the bottom shell is provided with a plurality of threaded holes.

[0012] Preferably, the radio frequency induction circuit comprises a radio frequency chip U2, a crystal oscillator XTAL and an induction coil.

[0013] The 1 interface of the radio frequency chip U2 is connected with the SPI-MOSI end of the single-chip microcomputer U1 in the single-chip microcomputer circuit, the 2 interface of the radio frequency chip U2 is connected with the SPI-MOSO end of the single-chip microcomputer U1 in the single-chip microcomputer circuit, the 5 interface of the radio frequency chip U2 is connected with the SPI-RST end of the single-chip microcomputer U1 in the single-chip microcomputer circuit, the 15 interface of the radio frequency chip U2 is connected with the SPI-NSS end of the single-chip microcomputer U1 in the single-chip microcomputer circuit, and the 16 interface of the radio frequency chip U2 is connected with the SPI-SCK end of the single-chip microcomputer U1 in the single-chip microcomputer circuit.

[0014] Preferably, the 1 interface of the crystal oscillator XTAL is connected with the 13 interface of the radio frequency chip U2, the 2 interface of the crystal oscillator XTAL is connected with the 14 interface of the radio frequency chip U2, the 3 interface and the 4 interface of the crystal oscillator XTAL are grounded, a capacitor C13 is connected between the 1 interface of the crystal oscillator XTAL and the 13 interface of the radio frequency chip U2, a capacitor C12 is connected between the 2 interface of the crystal oscillator XTAL and the 14 interface of the radio frequency chip U2, and the capacitor C13 and the capacitor C12 are grounded.

[0015] Preferably, the A interface of the induction coil, a capacitor C25, an inductor L1 and the 9 interface of the radio frequency chip U2 are connected in series.

[0016] The C interface of the induction coil, a capacitor C24, an inductor L2 and the 7 interface of the radio frequency chip U2 are connected in series.

[0017] The B interface of the induction coil is electrically connected between the capacitor C25 and the inductor L1 through a capacitor C17, and the B interface of the induction coil is electrically connected between the capacitor C24 and the inductor L2 through a capacitor C26.

[0018] Capacitors C15, C18, C19 and C20 are connected in parallel between the A interface of the induction coil and the capacitor C25, the capacitor C18, the capacitor C19 and the capacitor C20 are electrically connected between the B interface of the induction coil and the capacitor C17, and the capacitor C18, the capacitor C19 and the capacitor C20 are electrically connected between the B interface of the induction coil and the capacitor C17.

[0019] The C interface of the induction coil and the capacitor C24 are connected with the capacitor C21, C22 and C23 in parallel, and the capacitor C21, C22 and C23 are electrically connected between the B interface of the induction coil and the capacitor C17.

[0020] The capacitor C15 is connected with the 12 interface of the radio frequency chip U2 through the resistor R11, the 11 interface of the radio frequency chip U2 is electrically connected between the resistor R11 and the 12 interface of the radio frequency chip U2 through the resistor R12, the capacitor C16 is connected between the 11 interface of the radio frequency chip U2 and the resistor R12, and the capacitor C16 is grounded.

[0021] Preferably, the power supply circuit comprises a plug interface CN1 and a current transformer UC1.

[0022] The 3 interface of the plug interface CN1, the 4 interface of the current transformer UC1, the 6 interface of the current transformer UC1, the inductor L4, the resistor R1, the inductor L3, the resistor R10 and the 4 interface of the plug interface CN1 are connected in series.

[0023] The +12V terminal is connected between the 3 interface of the plug interface CN1 and the 4 interface of the current transformer UC1, and the 5V terminal is connected between the inductor L3 and the resistor R10.

[0024] The 5 interface of the plug interface CN1 is connected with the OUT terminal of the single-chip microcomputer U1 in the single-chip microcomputer circuit through the diode D1.

[0025] The 6 interface of the plug interface CN1 is connected with the SIG terminal of the single-chip microcomputer U1 in the single-chip microcomputer circuit through the resistor R2.

[0026] The water outlet valve driving circuit comprises an NMOS tube Q1 and a diode D2.

[0027] The D pole of the NMOS tube Q1 is electrically connected between the 3 interface of the plug interface CN1 and the 4 interface of the current transformer UC1 through the diode D2, the 1 interface of the plug interface CN1 is electrically connected between the D pole of the NMOS tube Q1 and the diode D2, and the 2 interface of the plug interface CN1 is electrically connected between the 3 interface of the plug interface CN1 and the 4 interface of the current transformer UC1.

[0028] The G pole of the NMOS tube Q1 is connected with the VALVE terminal of the single-chip microcomputer U1 in the single-chip microcomputer circuit through the resistor R5, the S pole of the NMOS tube Q1 is electrically connected between the G pole of the NMOS tube Q1 through the resistor R5 and the resistor R6, and the connection line between the S pole of the NMOS tube Q1 and the resistor R6 is grounded.

[0029] Preferably, the 3 interface of the current transformer UC1 is electrically connected between the inductor L4 and the resistor R1, and the 1 interface of the current transformer UC1 is electrically connected between the inductor L3 and the resistor R1.

[0030] The 7 interface and the 8 interface of the current transformer UC1 are both electrically connected between the resistor R10 and the 4 interface of the plug-in interface CN1.

[0031] The capacitor C1 and the electrolytic capacitor EC1 are connected in parallel between the 3 interface of the plug-in interface CN1 and the 4 interface of the current transformer UC1, and the capacitor C1 and the electrolytic capacitor EC1 are respectively electrically connected between the resistor R10 and the 4 interface of the plug-in interface CN1.

[0032] The capacitor C2 and the capacitor C8 are connected in parallel between the resistor R1 and the inductor L3, and the capacitor C2 and the capacitor C8 are respectively electrically connected between the resistor R10 and the 4 interface of the plug-in interface CN1.

[0033] The capacitor C9 and the capacitor C10 are connected in parallel between the inductor L3 and the resistor R10, and the capacitor C9 and the capacitor C10 are respectively electrically connected between the resistor R10 and the 4 interface of the plug-in interface CN1.

[0034] Preferably, the indicator lamp circuit comprises a triode Q2 and an indicator lamp LED2.

[0035] The collector of the triode Q2, the indicator lamp LED2, the resistor R10 and the 5V end are connected in series.

[0036] The indicator lamp LED1 and the indicator lamp LED13 are connected in parallel outside the indicator lamp LED2.

[0037] The base of the triode Q2 is connected to the LED end of the single-chip microcomputer U1 in the single-chip microcomputer circuit through the resistor R3.

[0038] The emitter of the triode Q2 is electrically connected between the base of the triode Q2 and the resistor R3 through the resistor R7, and the connection line of the emitter of the triode Q2 and the resistor R7 is grounded.

[0039] Compared with the prior art, the utility model has the beneficial effects that:

[0040] The utility model discloses a shell, bottom shell, PCB board, radio frequency response circuit, singlechip circuit, power supply circuit, outlet valve drive circuit and pilot lamp circuit are set up through setting, and the shell and bottom shell cooperation are closed to the PCB board and can effectively carry out the protection treatment to the PCB board, can effectively avoid the liquid or water vapor to enter the shell and bottom shell inside and cause the damage to the PCB board, the radio frequency response circuit on the PCB board is used to provide RFID card wireless response function, and the radio frequency response circuit is used as the function button, and the singlechip circuit is used as the circuit control hub, and the radio frequency response circuit, power supply circuit, outlet valve drive circuit and pilot lamp circuit control work, power supply circuit is used to power supply to the whole circuit, outlet valve drive circuit is used to drive control to the outlet valve of hot water, pilot lamp circuit is used to the pilot lamp display work of the condition of circuit, the utility model discloses the RFID card is placed on the button surface and can water, and immediately stop water when leaving the button surface, can prevent children from using boiling water alone, and need to use the teacher's company control. BRIEF DESCRIPTION OF DRAWINGS

[0041] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with embodiments of the utility model, and do not constitute the limitation to the utility model. In the drawings:

[0042] Figure 1 It is the structure schematic diagram of the whole of the utility model;

[0043] Figure 2 It is the structure schematic diagram of the whole of the utility model from another angle;

[0044] Figure 3 It is the structure schematic diagram of the whole bottom of the utility model;

[0045] Figure 4 It is the circuit schematic diagram of the whole of the utility model;

[0046] Figure 5 It is the circuit schematic diagram of the radio frequency response circuit of the utility model;

[0047] Figure 6 It is the circuit schematic diagram of the singlechip circuit of the utility model;

[0048] Figure 7 It is the circuit schematic diagram of power supply circuit and outlet valve drive circuit of the utility model;

[0049] Figure 8 It is the circuit schematic diagram of the pilot lamp circuit of the utility model;

[0050] In the drawing: 1, the shell is set up; 2, bottom shell; 3, radio frequency response circuit; 4, singlechip circuit; 5, power supply circuit; 6, outlet valve drive circuit; 7, pilot lamp circuit; 8, elastic clamping strip. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0052] As shown in Figures 1-8 The utility model provides technical scheme: a kind of RFID card swiping water function button, including upper shell 1, bottom shell 2 and PCB board, the PCB board is located between upper shell 1 and bottom shell 2, and the upper shell 1 and bottom shell 2 are fixedly connected;The surface of the PCB board is equipped with radio frequency induction circuit 3, single-chip microcomputer circuit 4, power supply circuit 5, water valve drive circuit 6 and indicator light circuit 7;Radio frequency induction circuit 3, single-chip microcomputer circuit 4, water valve drive circuit 6 and indicator light circuit 7 are electrically connected with power supply circuit 5 respectively, and radio frequency induction circuit 3, power supply circuit 5, water valve drive circuit 6 and indicator light circuit 7 are electrically connected with single-chip microcomputer circuit 4 respectively.

[0053] In one embodiment, the bottom shell 2 outer wall both sides are equipped with the elastic clamping strip 8 matched with upper shell 1, the upper shell 1 bottom is equipped with threaded groove, and the bottom shell 2 bottom is equipped with a plurality of threaded holes.

[0054] In one embodiment, as shown in Figure 5 The radio frequency induction circuit 3 includes radio frequency chip U2, crystal oscillator XTAL and induction coil;The 1 interface of the radio frequency chip U2 is connected with the SPI-MOSI end of the single-chip microcomputer U1 in the single-chip microcomputer circuit 4, the 2 interface of the radio frequency chip U2 is connected with the SPI-MOSO end of the single-chip microcomputer U1 in the single-chip microcomputer circuit 4, the 5 interface of the radio frequency chip U2 is connected with the SPI-RST end of the single-chip microcomputer U1 in the single-chip microcomputer circuit 4, the 15 interface of the radio frequency chip U2 is connected with the SPI-NSS end of the single-chip microcomputer U1 in the single-chip microcomputer circuit 4, and the 16 interface of the radio frequency chip U2 is connected with the SPI-SCK end of the single-chip microcomputer U1 in the single-chip microcomputer circuit 4.

[0055] In one embodiment, the 1 interface of the crystal oscillator XTAL is connected with the 13 interface of the radio frequency chip U2, the 2 interface of the crystal oscillator XTAL is connected with the 14 interface of the radio frequency chip U2, the 3 interface and the 4 interface of the crystal oscillator XTAL are grounded, the 1 interface of the crystal oscillator XTAL is connected with the 13 interface of the radio frequency chip U2, and the 2 interface of the crystal oscillator XTAL is connected with the 14 interface of the radio frequency chip U2.

[0056] In one embodiment, the A interface of the induction coil, the capacitor C25, the inductor L1 and the 9 interface of the radio frequency chip U2 are connected in series; the C interface of the induction coil, the capacitor C24, the inductor L2 and the 7 interface of the radio frequency chip U2 are connected in series; the B interface of the induction coil is electrically connected between the capacitor C25 and the inductor L1 through the capacitor C17, and the B interface of the induction coil is electrically connected between the capacitor C24 and the inductor L2 through the capacitor C26; the A interface of the induction coil and the capacitor C25 are externally connected with the capacitor C15, the capacitor C18, the capacitor C19 and the capacitor C20 which are connected in parallel, and the capacitor C18, the capacitor C19 and the capacitor C20 are electrically connected between the B interface of the induction coil and the capacitor C17; the C interface of the induction coil and the capacitor C24 are externally connected with the capacitor C21, the capacitor C22 and the capacitor C23 which are connected in parallel, and the capacitor C21, the capacitor C22 and the capacitor C23 are electrically connected between the B interface of the induction coil and the capacitor C17; the capacitor C15 is connected with the 12 interface of the radio frequency chip U2 through the resistor R11, the 11 interface of the radio frequency chip U2 is electrically connected between the resistor R11 and the 12 interface of the radio frequency chip U2 through the resistor R12, the capacitor C16 is externally connected between the 11 interface of the radio frequency chip U2 and the resistor R12, and the capacitor C16 is grounded.

[0057] In one embodiment, as Figure 7As shown, the power supply circuit 5 includes a plug interface CN1 and a converter UC1; the 3 interface of the plug interface CN1, the 4 interface of the converter UC1, the 6 interface of the converter UC1, the inductor L4, the resistor R1, the inductor L3, the resistor R10 and the 4 interface of the plug interface CN1 are connected in series; the 3 interface of the plug interface CN1 and the 4 interface of the converter UC1 are externally connected with a +12V terminal, and the inductor L3 and the resistor R10 are externally connected with a 5V terminal; the 5 interface of the plug interface CN1 is connected with the OUT terminal of the single-chip microcomputer U1 in the single-chip microcomputer circuit 4 through the diode D1; the 6 interface of the plug interface CN1 is connected with the SIG terminal of the single-chip microcomputer U1 in the single-chip microcomputer circuit 4 through the resistor R2; the water outlet valve driving circuit 6 includes an NMOS tube Q1 and a diode D2; the D pole of the NMOS tube Q1 is electrically connected between the 3 interface of the plug interface CN1 and the 4 interface of the converter UC1 through the diode D2; the 1 interface of the plug interface CN1 is electrically connected between the D pole of the NMOS tube Q1 and the diode D2, and the 2 interface of the plug interface CN1 is electrically connected between the 3 interface of the plug interface CN1 and the 4 interface of the converter UC1; the G pole of the NMOS tube Q1 is connected with the VALVE terminal of the single-chip microcomputer U1 in the single-chip microcomputer circuit 4 through the resistor R5, and the S pole of the NMOS tube Q1 is electrically connected between the G pole of the MOS tube Q1 and the resistor R5 through the resistor R6; the connection line between the S pole of the NMOS tube Q1 and the resistor R6 is grounded.

[0058] In one embodiment, the 3 interface of the converter UC1 is electrically connected between the inductor L4 and the resistor R1, and the 1 interface of the converter UC1 is electrically connected between the inductor L3 and the resistor R1; the 7 interface and the 8 interface of the converter UC1 are both electrically connected between the resistor R10 and the 4 interface of the plug interface CN1; the 3 interface of the plug interface CN1 and the 4 interface of the converter UC1 are externally connected with a capacitor C1 and an electrolytic capacitor EC1, the capacitor C1 and the electrolytic capacitor EC1 are connected in parallel, and the capacitor C1 and the electrolytic capacitor EC1 are respectively electrically connected between the resistor R10 and the 4 interface of the plug interface CN1; the resistor R1 and the inductor L3 are externally connected with a capacitor C2 and a capacitor C8, the capacitor C2 and the capacitor C8 are connected in parallel, and the capacitor C2 and the capacitor C8 are respectively electrically connected between the resistor R10 and the 4 interface of the plug interface CN1; the inductor L3 and the resistor R10 are externally connected with a capacitor C9 and a capacitor C10, the capacitor C9 and the capacitor C10 are connected in parallel, and the capacitor C9 and the capacitor C10 are respectively electrically connected between the resistor R10 and the 4 interface of the plug interface CN1.

[0059] In one embodiment, as Figure 8As shown, the indicator lamp circuit 7 comprises a transistor Q2 and an indicator lamp LED2; the collector of the transistor Q2, the indicator lamp LED2, the resistor R10 and the 5V terminal are connected in series; the indicator lamp LED2 is connected with the indicator lamp LED1 and the indicator lamp LED13 in parallel outside; the base of the transistor Q2 is connected with the LED terminal of the single-chip microcomputer U1 in the single-chip microcomputer circuit 4 through the resistor R3; the emitter of the transistor Q2 is electrically connected between the base of the transistor Q2 and the resistor R3 through the resistor R7, and the connection line between the emitter of the transistor Q2 and the resistor R7 is grounded.

[0060] Specific working principle:

[0061] In the utility model, by setting the upper shell 1, bottom shell 2, PCB board, radio frequency induction circuit 3, single-chip microcomputer circuit 4, power supply circuit 5, water outlet valve drive circuit 6 and indicator lamp circuit 7, the upper shell 1 and bottom shell 2 cooperate to close the PCB board, which can effectively protect the PCB board, and can effectively prevent water or water vapor from entering the inside of the upper shell 1 and bottom shell 2 to damage the PCB board; the radio frequency induction circuit 3 on the PCB board is used to provide RFID card swiping wireless induction function, and the radio frequency induction circuit 3 is used as a function key, the single-chip microcomputer circuit 4 is used as the core of circuit control, and the radio frequency induction circuit 3, power supply circuit 5, water outlet valve drive circuit 6 and indicator lamp circuit 7 are controlled to work; the power supply circuit 5 is used to supply power to the whole circuit; the water outlet valve drive circuit 6 is used to drive and control the water outlet valve of hot water; the indicator lamp circuit 7 is used for indicator lamp display work of the condition of the circuit.

[0062] The induction coil in the radio frequency induction circuit 3 is electrically connected to two interfaces of the radio frequency chip U2, the A interface of the induction coil is connected to the radio frequency chip U2 through the series connection of the capacitor C25 and the inductor L1, the B interface of the induction coil is connected to the radio frequency chip U2 through the series connection of the capacitor C24 and the inductor L2, a series resonance is formed, the series resonance can be used to select signals of specific frequencies, which is very important in wireless communication and tuning circuits; near the resonance frequency, the voltage and current of the circuit can be amplified, which is very useful in oscillators and tuned amplifiers; the series resonance circuit can be used as a frequency selector, plays a filtering role, helps to remove or select signals of specific frequencies; the induction coil and the capacitor are connected in parallel in the circuit, can form an LC resonance circuit, has excellent signal filtering capability, can effectively filter out noise and useless signals in wireless communication, and significantly improves the anti-interference performance of the communication system; by adjusting the value of the capacitor in the circuit, the resonance frequency of the LC resonance circuit can be flexibly changed, so as to accurately adjust the amplification gain and frequency response of the circuit in the radio frequency amplification field; in addition, the LC resonance circuit can also be used as the core component of the oscillator, when an external synchronization signal is added, a high-frequency oscillation signal can be stably generated at the resonance frequency;

[0063] The main function of the external capacitor C12 and the capacitor C13 of the crystal oscillator XTAL is to increase the frequency stability, compensate the manufacturing tolerance and filter effect, short-circuit the high-frequency interference signal, and exclude it, so that the crystal oscillator circuit is more stable.

[0064] The converter UC1 in the power supply circuit 5 converts the input 12V voltage into 5V voltage to supply power to other circuits.

[0065] The single-chip microcomputer U1 is an integrated chip with 16 pins, wherein the OUT end and the SIG end pin of the single-chip microcomputer U1 are output to the 5 interface and the 6 interface of the plug interface CN1; the VALVE end pin of the single-chip microcomputer U1 is output to the water outlet valve driving circuit 6 and then connected to the 5 interface and the 6 interface of the plug interface CN1, and is used for driving the water outlet valve of the water dispenser.

[0066] The utility model discloses a RFID card, place on the key surface then can water, leave the key surface immediately stop water immediately;Can prevent children from using boiling water alone, need teacher accompany control only can use.

[0067] Finally, it should be noted that: the above only for preferred embodiments of the utility model have described, and do not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement etc. in the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. An RFID card-swipe water dispensing function button, comprising an upper shell (1), a bottom shell (2), and a PCB board, characterized in that: The PCB board is disposed between the upper shell (1) and the bottom shell (2), and the upper shell (1) and the bottom shell (2) are fixedly connected; The PCB board surface is provided with a radio frequency sensing circuit (3), a microcontroller circuit (4), a power supply circuit (5), a water outlet valve driving circuit (6), and an indicator light circuit (7). The radio frequency sensing circuit (3), the microcontroller circuit (4), the water outlet valve driving circuit (6) and the indicator light circuit (7) are all electrically connected to the power supply circuit (5), and the radio frequency sensing circuit (3), the power supply circuit (5), the water outlet valve driving circuit (6) and the indicator light circuit (7) are all electrically connected to the microcontroller circuit (4).

2. The RFID card-swipe water dispensing function button according to claim 1, characterized in that: The bottom shell (2) has elastic clips (8) symmetrically arranged on both sides of its outer wall that match the upper shell (1). The bottom of the upper shell (1) has a threaded groove, and the bottom of the bottom shell (2) has several threaded holes.

3. The RFID card-swipe water dispensing function button according to claim 1, characterized in that: The radio frequency sensing circuit (3) includes a radio frequency chip U2, a crystal oscillator XTAL, and an induction coil; The 1st interface of the RF chip U2 is connected to the SPI-MOSI terminal of the microcontroller U1 in the microcontroller circuit (4), the 2nd interface of the RF chip U2 is connected to the SPI-MOSO terminal of the microcontroller U1 in the microcontroller circuit (4), the 5th interface of the RF chip U2 is connected to the SPI-RST terminal of the microcontroller U1 in the microcontroller circuit (4), the 15th interface of the RF chip U2 is connected to the SPI-NSS terminal of the microcontroller U1 in the microcontroller circuit (4), and the 16th interface of the RF chip U2 is connected to the SPI-SCK terminal of the microcontroller U1 in the microcontroller circuit (4).

4. The RFID card-swipe water dispensing function button according to claim 3, characterized in that: The 1st interface of the crystal oscillator XTAL is connected to the 13th interface of the RF chip U2, the 2nd interface of the crystal oscillator XTAL is connected to the 14th interface of the RF chip U2, the 3rd and 4th interfaces of the crystal oscillator XTAL are both grounded, an external capacitor C13 is connected between the 1st interface of the crystal oscillator XTAL and the 13th interface of the RF chip U2, and an external capacitor C12 is connected between the 2nd interface of the crystal oscillator XTAL and the 14th interface of the RF chip U2, and both capacitors C13 and C12 are grounded.

5. The RFID card-swipe water dispensing function button according to claim 4, characterized in that: The A interface of the induction coil, capacitor C25, inductor L1 and the 9 interface of the RF chip U2 are connected in series. The C interface of the induction coil, capacitor C24, inductor L2 and the 7 interface of the RF chip U2 are connected in series. The B interface of the induction coil is electrically connected between capacitor C25 and inductor L1 through capacitor C17, and the B interface of the induction coil is electrically connected between capacitor C24 and inductor L2 through capacitor C26. The induction coil's A interface is connected to capacitors C15, C18, C19, and C20. These capacitors are connected in parallel. All three capacitors (C15, C18, C19, and C20) are electrically connected between the induction coil's B interface and capacitor C17. The induction coil's C interface is connected to capacitors C21, C22, and C23 externally. The capacitors C21, C22, and C23 are connected in parallel. The capacitors C21, C22, and C23 are all electrically connected between the induction coil's B interface and capacitor C17. The capacitor C15 is connected to the I2 interface of the RF chip U2 through the resistor R11. The I1 interface of the RF chip U2 is electrically connected between the resistor R11 and the I2 interface of the RF chip U2 through the resistor R12. An external capacitor C16 is connected between the I1 interface of the RF chip U2 and the resistor R12. The capacitor C16 is grounded.

6. The RFID card-swipe water dispensing function button according to claim 1, characterized in that: The power supply circuit (5) includes a connector CN1 and a converter UC1; The connector CN1, connector 3, converter UC1, converter UC1, inductor L4, resistor R1, inductor L3, resistor R10 and connector CN1 are connected in series. The +12V terminal is connected between the 3rd interface of the connector CN1 and the 4th interface of the converter UC1, and the 5V terminal is connected between the inductor L3 and the resistor R10. The 5th interface of the connector CN1 is connected to the OUT terminal of the microcontroller U1 in the microcontroller circuit (4) through diode D1; The 6th interface of the connector CN1 is connected to the SIG terminal of the microcontroller U1 in the microcontroller circuit (4) through resistor R2; The water outlet valve drive circuit (6) includes an NMOS transistor Q1 and a diode D2; The drain of the NMOS transistor Q1 is electrically connected between the 3rd terminal of the connector CN1 and the 4th terminal of the converter UC1 through the diode D2; the 1st terminal of the connector CN1 is electrically connected between the drain of the NMOS transistor Q1 and the diode D2; and the 2nd terminal of the connector CN1 is electrically connected between the 3rd terminal of the connector CN1 and the 4th terminal of the converter UC1. The gate (G) of the NMOS transistor Q1 is connected to the VALVE terminal of the microcontroller U1 in the microcontroller circuit (4) through resistor R5. The source (S) of the NMOS transistor Q1 is electrically connected to the gate (G) of the MOS transistor Q1 through resistor R5 through resistor R6. The connection between the source (S) of the NMOS transistor Q1 and resistor R6 is grounded.

7. The RFID card-swipe water dispensing function button according to claim 6, characterized in that: The 3rd interface of the converter UC1 is electrically connected between inductor L4 and resistor R1, and the 1st interface of the converter UC1 is electrically connected between inductor L3 and resistor R1. The 7th and 8th ports of the converter UC1 are electrically connected between the resistor R10 and the 4th port of the connector CN1. An external capacitor C1 and an electrolytic capacitor EC1 are connected between the 3rd port of the connector CN1 and the 4th port of the converter UC1. The capacitor C1 and the electrolytic capacitor EC1 are connected in parallel. The capacitor C1 and the electrolytic capacitor EC1 are electrically connected between the resistor R10 and the 4th port of the connector CN1, respectively. External capacitors C2 and C8 are connected between resistor R1 and inductor L3. Capacitors C2 and C8 are connected in parallel. Capacitors C2 and C8 are electrically connected between resistor R10 and connector CN1 (4th pin). An external capacitor C9 and a capacitor C10 are connected between the inductor L3 and the resistor R10. The capacitors C9 and C10 are connected in parallel. The capacitors C9 and C10 are electrically connected between the resistor R10 and the 4th terminal of the connector CN1.

8. The RFID card-swipe water dispensing function button according to claim 1, characterized in that: The indicator circuit (7) includes a transistor Q2 and an indicator LED2; The collector of transistor Q2, indicator LED2, resistor R10 and 5V terminal are connected in series in sequence. LED1 and LED13 are connected in parallel to the outside of LED2; The base of transistor Q2 is connected to the LED terminal of microcontroller U1 in microcontroller circuit (4) through resistor R3; The emitter of transistor Q2 is electrically connected between the base of transistor Q2 and resistor R3 through resistor R7, and the connection between the emitter of transistor Q2 and resistor R7 is grounded.

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