A method of controlling bacteria

Abstract

The application relates to the field of sterilization, in particular to a sterilization control method, a first circuit board is fixed on an electric toothbrush, a lithium battery module, an MCU control module, a charging control module, a wired charging module and a wireless charging module are arranged on the first circuit board, the lithium battery module supplies power for the MCU module, a signal output end of the MCU control module is electrically connected with a signal input end of the charging control module, a signal output end of the charging control module is electrically connected with signal input ends of the wired charging module and the wireless charging module, a second circuit board is fixed on a sterilization box, a wired power supply module, a wireless power supply module and a sterilization module are arranged on the second circuit board, output ends of the wired power supply module and the wireless power supply module are electrically connected with an input end of the sterilization module, the lithium battery on the electric toothbrush is used for supplying power for the sterilization module on the sterilization box, and rapid sterilization can be achieved.

Description

Technical Field

[0001] This invention relates to the field of sterilization, and more specifically, to a sterilization control method. Background Technology

[0002] Currently, electric toothbrushes and sterilization boxes are typically powered by lithium batteries, while sterilization boxes are powered by rechargeable batteries. The electric toothbrush and sterilization box have independent power supply systems. The sterilization box needs to be powered separately, which results in poor efficiency. In addition, an independent sterilization system is required to drive the sterilization box, which has a complex circuit structure and high production cost. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, the present invention provides a sterilization control method that can solve the technical problems of poor efficiency and high production cost caused by the independent power supply systems of electric toothbrushes and sterilization boxes.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0005] A sterilization control method, applied to electric toothbrushes and sterilization boxes, is characterized in that...

[0006] The electric toothbrush is fixed with a first circuit board, which is provided with a lithium battery module, an MCU control module, a charging control module, a wired charging module, and a wireless charging module. The lithium battery module supplies power to the MCU module. The signal output terminal of the MCU control module is electrically connected to the signal input terminal of the charging control module. The wired charging module includes a charging interface CN1. The signal output terminal of the charging control module is electrically connected to the charging interface CN1 and the signal input terminal of the wireless charging module. The output terminal of the wireless charging module is electrically connected to a transmitting coil.

[0007] A second circuit board is fixed on the sterilization box. The second circuit board is equipped with a wired power supply module, a wireless power supply module, and a sterilization module. The output terminals of the wired power supply module and the wireless power supply module are electrically connected to the input terminal of the sterilization module. The wired power supply module includes a power supply interface CN2 corresponding to the charging interface CN1. The power supply interface CN2 is connected to the charging interface CN1 through an external wire. The input terminal of the wireless power supply module is electrically connected to a receiving coil. The receiving coil is wirelessly connected to the transmitting coil.

[0008] The specific steps are as follows:

[0009] S10 places the electric toothbrush in the sterilization box, and the lithium battery module located in the electric toothbrush powers the MCU control module.

[0010] The MCU control module described in S20 outputs a sterilization control signal through its signal output terminal to control the conduction of the charging control module;

[0011] The S30 charging control module is turned on, and the wired charging module supplies power to the wired power supply module through the charging interface CN1 and the power supply interface CN2, or the wireless charging module supplies power to the wireless power supply module through the transmitting coil and the receiving coil.

[0012] The S40 wired or wireless power supply module powers the sterilization module, which then sterilizes the electric toothbrush inside the sterilization box.

[0013] After the S50 sterilization is completed, the MCU control module outputs a cut-off control signal through the signal output terminal to control the cut-off of the charging control module;

[0014] When the S60 charging control module is turned off, the wired charging module stops supplying power to the wired power supply module or the wireless charging module stops supplying power to the wireless power supply module.

[0015] The S70 sterilization module has stopped working.

[0016] Furthermore, in step 10, the lithium battery module includes a lithium battery, a charging chip U1, resistors R1, R5, and R11, and a capacitor C3. The positive terminal of the lithium battery is electrically connected to pin 3 of the charging chip U1. Pin 1 of the charging chip U1 is electrically connected to the signal output terminal of the MCU control module. Pin 4 of the charging chip U1 is electrically connected to one end of capacitor C3 and resistor R5, and pins 2 and 5 of the charging interface CN1. The other end of resistor R5 is electrically connected to one end of resistor R11 and the input terminal of the MCU control module. Resistors R11, R1, C3, and pin 2 of the charging chip U1 are all grounded.

[0017] Furthermore, in steps 20 and 30, the charging control module includes resistor R7, resistor R12, diode D1, and transistor Q1. Resistor R12 is electrically connected between the output terminal of the MCU control module and the base of transistor Q1. The positive terminal of the lithium battery is electrically connected to the emitter of transistor Q1 and one end of resistor R7. The other end of resistor R7 is electrically connected to the base of transistor Q1. The collector of transistor Q1 is electrically connected to the anode of diode D1 and the input terminal of the wireless charging module. The cathode of diode D1 is electrically connected to pins 2 and 5 of charging interface CN1 and the output terminal of the lithium battery module. When the signal output terminal of the MCU control module outputs a low level, transistor Q1 is turned on to supply power to the sterilization module. When the signal output terminal of the MCU control module outputs a high level, transistor Q1 is turned off to stop supplying power to the sterilization module.

[0018] Further, in step 20, the MCU control module includes a control chip U5, a capacitor C22, resistors R14 and R15, and a switch S1; one end of resistors R14 and R15 and pin 16 of the control chip U5 are electrically connected to the positive terminal of the lithium battery; the other end of resistor R14 is electrically connected to pin 15 of the control chip U5 and one end of the switch S1; the other end of resistor R15 is electrically connected to pin 12 of the control chip U5; pin 1 of the control chip U5 and the other end of the switch S1 are both grounded; and capacitor C22 is connected to the control chip U5. Between pins 1 and 16, pin 11 of the control chip U5 is electrically connected to the signal input terminal of the charging control module, which is the signal output terminal. Pin 12 of the control chip U5 is electrically connected to pins 3 and 4 of the charging interface CN1. When pins 3 and 4 of the charging interface CN1 are at a low level, the control chip U5 detects this low-level signal and controls the charging control module to turn on to supply power to the sterilization module. When pins 3 and 4 of the charging interface CN1 are at a high level, the control chip U5 detects this high-level signal and controls the charging control module to turn off, stopping the supply of power to the sterilization module.

[0019] Furthermore, the MCU control module also includes resistors R19 and R20, LED1, LED2, LED3, LED4, LED5, and LED6; pins 2, 3, 4, 6, 8, and 10 of the control chip U5 are electrically connected to the positive terminals of LED4, LED1, LED5, LED2, LED6, and LED3, respectively; the negative terminals of LED4, LED1, LED5, and LED2 are electrically connected to one end of resistor R19; the negative terminals of LED6 and LED3 are electrically connected to one end of resistor R20; and the other ends of resistors R19 and R20 are both grounded.

[0020] Further, in step 30, the wireless charging module includes a boost converter chip U2, a wireless transmitter chip U7, inductors L1 and L2, resistors R2, R3, R4, R6, R13, R17, and R18, capacitors C23-C28, capacitors C32-C39, NMOS transistors Q2A, Q2B, Q3A, and Q3B, diode D4, and interfaces T1 and T2. The signal output terminal of the charging control module is electrically connected to pins 4 and 5 of the boost converter chip U2 and one end of inductor L1. The other end of inductor L1 is electrically connected to pin 1 of the boost converter chip U2 and the positive terminal of diode D4. Pin 3 of the boost converter chip U2 is connected to the resistor... R3 and one end of resistor R13 are electrically connected. The other end of resistor R3 is electrically connected to the cathode of diode D4, capacitors C23 and C24, one end of resistor R4 and the drain of NMOS transistors Q3B and Q2A. The other end of resistor R2 is electrically connected to pin 5 of wireless transmitter chip U7 and one end of resistor R6. Pin 46 of wireless transmitter chip U7 is electrically connected to one end of capacitors C25 and C26. The other end of capacitor C26 is electrically connected to pin 45 of wireless transmitter chip U7. Pin 42 of wireless transmitter chip U7 is electrically connected to one end of capacitor C27. The other end of resistor R4 is electrically connected to one end of capacitor C28, pin 38 of wireless transmitter chip U7, and pin... 40 and pin 41 are electrically connected. The other end of capacitors C24, C25, C27, C28, C23, resistor R6, and pins 36 and 48 of the wireless transmitter chip U7 are all grounded. Pins 30, 28, 26, and 24 of the wireless transmitter chip U7 are electrically connected to the gates of NMOS transistors Q2A, Q2B, Q3B, and Q3A, respectively. The source of NMOS transistor Q2A is electrically connected to one end of capacitor C32 and resistor R17, the drain of NMOS transistor Q2B, pin 29 of the wireless transmitter chip U7, and interface T2. The source of NMOS transistor Q2B is grounded. The other end of capacitor C32 is connected to the wireless transmitter chip... Pin 31 of U7 is electrically connected. The other end of resistor R17 is connected in series with capacitor C34 and then grounded. The source of NMOS transistor Q3B is electrically connected to capacitor C33, one end of resistor R18, pin 25 of wireless transmitter chip U7, and the drain of NMOS transistor Q3A. The other end of capacitor C33 is electrically connected to pin 27 of wireless transmitter chip U7. The other end of resistor R18 is connected in series with capacitor C35 and then grounded. Capacitors C36, C37, C38, and C39 are connected in parallel between the source of NMOS transistor Q3B and interface T1. The source of NMOS transistor Q3A is grounded. Inductor L2 is connected between interface T1 and interface T2. Interfaces T1 and T2 are connected to the transmitting coil.

[0021] Further, in step 30, the wireless power supply module includes a wireless receiver chip U8, capacitors C4, C5, C8-C15, C19, resistor R29, inductor L3, PMOS transistors Q4 and Q5, and interfaces P and N. Interfaces P and N are connected to the receiving coil. The inductor L3 is connected between interfaces P and N. Capacitors C13, C14, and C15 are connected in parallel between interface N and pin 26 of the wireless receiver chip U8. Pin 26 of the wireless receiver chip U8 is also electrically connected to one end of capacitors C9, C11, and C12 and pin 25 of the wireless receiver chip U8. The other end of capacitor C9 is electrically connected to pin 24 of the wireless receiver chip U8. The other end of capacitor C11 is electrically connected to pin 25 of the wireless receiver chip U8. The other end of capacitor C12... One end is electrically connected to interface P, pins 31 and 29 of the wireless receiver chip U8, and one end of capacitors C10 and C8. The other end of capacitor C10 is electrically connected to pin 32 of the wireless receiver chip U8. The other end of capacitor C8 is electrically connected to pin 1 of the wireless receiver chip U8. Pins 2, 3, and 4 of the wireless receiver chip U8 are electrically connected to one end of capacitors C4 and C5 and the source of PMOS transistor Q5. Pin 18 of the wireless receiver chip U8 is electrically connected to the gates of PMOS transistors Q4 and Q5. The drain of PMOS transistor Q5 is electrically connected to the drain of PMOS transistor Q4. The source of PMOS transistor Q4 is electrically connected to one end of capacitor C19, pin 19 of the wireless receiver chip U8, and the input terminal of the sterilization module. The other end of capacitor C19 is connected in series with resistor R29 and then grounded.

[0022] Further, in step 40, the sterilization module includes a detection circuit, a boost converter chip U3, capacitors C17, C20, C16, C44, resistors R39, R27, R28, diode D5, an ultraviolet germicidal lamp LED7, transistors Q6 and Q7, and inductor L4; the output terminals of the wired power supply module and the wireless power supply module are electrically connected to one end of capacitors C20, C17, and inductor L4, pins 4 and 5 of the boost converter chip U3, and the input terminal of the detection circuit; the other end of inductor L4 is electrically connected to pin 1 of the boost converter chip U3 and the positive terminal of diode D5; pin 3 of the boost converter chip U3 is connected to resistor R39 and... One end of resistor R26 is electrically connected. Capacitors C16 and C44 are connected in parallel with one end grounded. The other ends of capacitors C16, C44, and resistor R39, along with the negative terminal of diode D5, are electrically connected to the positive terminal of UV germicidal lamp LED7. The negative terminal of UV germicidal lamp LED7 is electrically connected to the collector of transistor Q6. The base of transistor Q6 is electrically connected to one end of resistor R27 and the collector of transistor Q7. The other end of resistor R27 is electrically connected to the output terminal of the detection circuit. The base of transistor Q7, the emitter of transistor Q6, and one end of resistor R28 are electrically connected. The other end of resistor R28 and the emitter of transistor Q7 are both grounded.

[0023] Furthermore, the detection circuit includes a Hall sensor U21 and a capacitor C21. The output terminals of the wired power supply module and the wireless power supply module are electrically connected to one end of the capacitor C21 and the pin V of the Hall sensor U21. The pin O of the Hall sensor U21 is electrically connected to the other end of the resistor R27. The pin G of the Hall sensor U21 and the other end of the capacitor C21 are both grounded.

[0024] Furthermore, the first circuit board is also provided with a protection module, which includes a protection chip U4 and a resistor R16. Pin 3 of the protection chip U4 is electrically connected to one end of the resistor R16, and the other end of the resistor R16 and pin 2 of the protection chip U4 are electrically connected to the positive and negative terminals of the lithium battery, respectively. Pins 4 and 5 of the protection chip U4 are both grounded.

[0025] The beneficial effects of this invention are:

[0026] In this solution, the first circuit board on the electric toothbrush is equipped with an MCU control module for power supply and a charging control module. The MCU control module controls the charging control module to turn on and off via low or high voltage levels. This, in turn, controls the wired and wireless charging modules to connect with the wired and wireless power supply modules on the sterilization box to power the sterilization module on the sterilization box. By using the lithium battery on the electric toothbrush to power the sterilization module on the sterilization box, rapid sterilization can be achieved. At the same time, the sterilization box does not need to be equipped with a sterilization control system and a power supply system, thus meeting more usage needs. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 Flowchart of the sterilization control method of the present invention;

[0029] Figure 2 Circuit diagram of the lithium battery module described in this invention;

[0030] Figure 3 Circuit diagram of the MCU control module described in this invention;

[0031] Figure 4 Circuit diagram of the charging control module described in this invention;

[0032] Figure 5 Circuit diagram of the motor drive module described in this invention;

[0033] Figure 6 Circuit diagram of the protection module described in this invention;

[0034] Figure 7 Circuit diagram of the wireless charging module described in this invention;

[0035] Figure 8 Circuit diagram of the wireless receiving module described in this invention;

[0036] Figure 9 Circuit diagram of the sterilization module described in this invention. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to represent selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Please refer to Figure 1-9 This invention provides a sterilization control method applicable to electric toothbrushes and sterilization boxes.

[0039] An electric toothbrush has a first circuit board fixed on it. The first circuit board has a lithium battery module, an MCU control module, a charging control module, a wired charging module, and a wireless charging module. The lithium battery module powers the MCU module. The signal output terminal of the MCU control module is electrically connected to the signal input terminal of the charging control module. The wired charging module includes a charging interface CN1. The signal output terminal of the charging control module is electrically connected to the charging interface CN1 and the signal input terminal of the wireless charging module. The output terminal of the wireless charging module is electrically connected to a transmitting coil.

[0040] A second circuit board is fixed on the sterilization box. The second circuit board is equipped with a wired power supply module, a wireless power supply module and a sterilization module. The output terminals of the wired power supply module and the wireless power supply module are electrically connected to the input terminal of the sterilization module. The wired power supply module includes a power supply interface CN2 corresponding to the charging interface CN1. The power supply interface CN2 and the charging interface CN1 are connected by an external wire. The input terminal of the wireless power supply module is electrically connected to a receiving coil. The receiving coil is wirelessly connected to the transmitting coil.

[0041] The specific steps are as follows:

[0042] S10 places the electric toothbrush inside the sterilization box, while the lithium battery module inside the electric toothbrush powers the MCU control module.

[0043] The S20 MCU control module outputs a sterilization control signal through its signal output terminal to control the conduction of the charging control module. In this embodiment, the sterilization control signal is at a low level.

[0044] When the S30 charging control module is turned on, the wired charging module supplies power to the wired power supply module through the charging interface CN1 and the power supply interface CN2, or the wireless charging module supplies power to the wireless power supply module through the transmitting coil and the receiving coil.

[0045] The S40 wired or wireless power supply module powers the sterilization module, which then sterilizes the electric toothbrush inside the sterilization box.

[0046] After the S50 sterilization is completed, the MCU control module outputs a cutoff control signal through the signal output terminal to control the charging control module to cut off. In this embodiment, the cutoff control signal is a high level.

[0047] When the S60 charging control module is turned off, the wired charging module stops supplying power to the wired power supply module, or the wireless charging module stops supplying power to the wireless power supply module.

[0048] The S70 sterilization module has stopped working.

[0049] Please refer to Figure 2 In step 10, the lithium battery module includes a lithium battery (not shown in the attached diagram), a charging chip U1, resistors R1, R5, and R11, and a capacitor C3. The positive terminal of the lithium battery is electrically connected to pin 3 of the charging chip U1. Pin 1 of the charging chip U1 is electrically connected to the signal output terminal of the MCU control module. Pin 4 of the charging chip U1 is electrically connected to one end of capacitor C3 and resistor R5, and pins 2 and 5 of the charging interface CN1. The other end of resistor R5 is electrically connected to one end of resistor R11 and the input terminal of the MCU control module. Resistors R11, R1, C3, and pin 2 of the charging chip U1 are all grounded. In this embodiment, the model of the charging chip U1 is FM4057.

[0050] Please refer to Figure 3In step 20, the MCU control module includes a control chip U5, a capacitor C22, a resistor R14, a resistor R15, and a switch S1. One end of resistors R14 and R15 and pin 16 of control chip U5 are electrically connected to the positive terminal of the lithium battery. The other end of resistor R14 is electrically connected to pin 15 of control chip U5 and one end of switch S1. The other end of resistor R15 is electrically connected to pin 12 of control chip U5. Pin 1 of control chip U5 and the other end of switch S1 are both grounded. Capacitor C22 is connected between pin 1 and pin 16 of control chip U5. Pin 11 of control chip U5 is a signal output terminal and is electrically connected to the signal input terminal of the charging control module. Pin 14 of control chip U5 is an input terminal and is electrically connected to the other end of resistor R5. Pin 13 of control chip U5 is a signal output terminal and is electrically connected to pin 1 of charging chip U1. Pin 12 of control chip U5 is electrically connected to pins 3 and 4 of charging interface CN1. When pins 3 and 4 of charging interface CN1 are at a low level, control chip U5 detects this low-level signal and controls the charging control module to turn on to supply power to the sterilization module. When pins 3 and 4 of charging interface CN1 are at a high level, control chip U5 detects this high-level signal and controls the charging control module to turn off, stopping power supply to the sterilization module. In this embodiment, the model of control chip U5 is HT66F004.

[0051] Please refer to Figure 3 The MCU control module also includes resistors R19 and R20, LED1, LED2, LED3, LED4, LED5, and LED6; pins 2, 3, 4, 6, 8, and 10 of the control chip U5 are electrically connected to the positive terminals of LED4, LED1, LED5, LED2, LED6, and LED3, respectively; the negative terminals of LED4, LED1, LED5, and LED2 are electrically connected to one end of resistor R19; the negative terminals of LED6 and LED3 are electrically connected to one end of resistor R20; and the other ends of resistors R19 and R20 are grounded.

[0052] Please refer to Figure 4In steps 20 and 30, the charging control module includes resistor R7, resistor R12, diode D1, and transistor Q1. Resistor R12 is electrically connected between pin 11 of control chip U5 and the base of transistor Q1. The positive terminal of the lithium battery is electrically connected to the emitter of transistor Q1 and one end of resistor R7. The other end of resistor R7 is electrically connected to the base of transistor Q1. The collector of transistor Q1 is electrically connected to the anode of diode D1 and the input terminal of the wireless charging module. The cathode of diode D1 is electrically connected to pins 2 and 5 of charging interface CN1 and pin 4 of charging chip U1. When the signal output terminal of the MCU control module outputs a low level, transistor Q1 is turned on to supply power to the sterilization module. When the signal output terminal of the MCU control module outputs a high level, transistor Q1 is turned off to stop supplying power to the sterilization module.

[0053] Please refer to Figure 6 The first circuit board also includes a protection module and a motor drive module. The protection module includes a protection chip U4 and a resistor R16. Pin 3 of the protection chip U4 is electrically connected to one end of the resistor R16. The other end of the resistor R16 and pin 2 of the protection chip U4 are electrically connected to the positive and negative terminals of the lithium battery, respectively. Pins 4 and 5 of the protection chip U4 are both grounded. In this embodiment, the protection chip U4 is model DW02C.

[0054] Please refer to Figure 5 The motor drive module includes a driver chip U6 and a capacitor C20. Pin 3 of the driver chip U6 is electrically connected to pin 5 of the control chip U5. Pin 4 of the driver chip U6 is electrically connected to the positive terminal of the lithium battery and one end of the capacitor C20. The other end of the capacitor C20 and pins 6 and 7 of the driver chip U6 are grounded. Pins 8 and 5 of the driver chip U6 are electrically connected to the positive and negative terminals of the external motor, respectively. Different user modes are implemented according to different PWM duty cycles and frequencies. In this embodiment, the driver chip U6 is model TC117.

[0055] Please refer to Figure 7In step 30, the wireless charging module includes a boost chip U2, a wireless transmitter chip U7, inductors L1 and L2, resistors R2, R3, R4, R6, R10, R13, R17, R18, R21, R22, R23, R24, R25, RT1, capacitors C23-C43, NMOS transistors Q2A, Q2B, Q3A, Q3B, diodes D3 and D4, and interfaces T1 and T2; the collector of transistor Q1 in the charging control module is connected to the boost chip U2. Pins 4 and 5 of the circuit are electrically connected to one end of inductor L1. The other end of inductor L1 is electrically connected to pin 1 of boost chip U2 and the positive terminal of diode D4. Pin 3 of boost chip U2 is electrically connected to one end of resistor R3 and resistor R13. The other end of resistor R3 is electrically connected to the negative terminal of diode D4, capacitor C23, capacitor C24, one end of resistor R4 and the drain of NMOS transistor Q3B and the drain of NMOS transistor Q2A. The other end of resistor R2 is electrically connected to pin 5 of wireless transmitter chip U7 and one end of resistor R6. Resistor R10 is connected between pins 47 and 48 of wireless transmitter chip U7. Pin 46 of the wireless transmitter chip U7 is electrically connected to one end of capacitors C25 and C26. The other end of capacitor C26 is electrically connected to pin 45 of the wireless transmitter chip U7. Pin 42 of the wireless transmitter chip U7 is electrically connected to one end of capacitor C27. The other end of resistor R4 is electrically connected to one end of capacitor C28 and pins 38, 40, and 41 of the wireless transmitter chip U7. Capacitors C24, C25, C27, C28, and C23, the other end of resistor R6, and pins 36, 47, 48, and 49 of the wireless transmitter chip U7 are all grounded. In this embodiment, the boost chip U2 is model ME2159, and the wireless transmitter chip U7 is model MT5815.

[0056] Please refer to Figure 7 Pin 1 of the wireless transmitter chip U7 is electrically connected to one end of capacitor C29, and the other end of capacitor C29 is grounded. Pins 5 and 7 of the wireless transmitter chip U7 are electrically connected to one end of capacitors C30 and C31, respectively. The other ends of capacitors C30 and C31, as well as pin 8 of the wireless transmitter chip U7, are all grounded. Pin 17 of the wireless transmitter chip U7 is electrically connected to one end of capacitor C43, resistor RT1, and resistor R23. The other end of resistor R23 is electrically connected to the positive terminal of diode D3. The negative terminal of diode D3 is electrically connected to one end of resistor R21. The other end of resistor R21 is electrically connected to pin 21 of the wireless transmitter chip U7. The other ends of capacitor C43 and resistor RT1 are both grounded.

[0057] Please refer to Figure 7Pin 44 of the wireless transmitter chip U7 is electrically connected to one end of capacitor C42. The other end of capacitor C42 is electrically connected to resistor R24 ​​and one end of capacitor C41. The other end of capacitor C41 is electrically connected to capacitor C40 and the negative terminal of diode D2. The positive terminal of diode D2 is electrically connected to interface T1. The other ends of resistor R24, resistor R25 and capacitor C40 are all grounded.

[0058] Please refer to Figure 7 Pins 30, 28, 26, and 24 of the wireless transmitter chip U7 are electrically connected to the gates of NMOS transistors Q2A, Q2B, Q3B, and Q3A, respectively. The source of NMOS transistor Q2A is electrically connected to capacitor C32, one end of resistor R17, the drain of NMOS transistor Q2B, pin 29 of the wireless transmitter chip U7, and interface T2. The source of NMOS transistor Q2B is grounded. The other end of capacitor C32 is electrically connected to pin 31 of the wireless transmitter chip U7. The other end of resistor R17 is connected in series with capacitor C34 and then grounded. The source of NMOS transistor Q3B is electrically connected to capacitor C33, one end of resistor R18, pin 25 of wireless transmitter chip U7, and the drain of NMOS transistor Q3A. The other end of capacitor C33 is electrically connected to pin 27 of wireless transmitter chip U7. The other end of resistor R18 is connected in series with capacitor C35 and then grounded. Capacitors C36, C37, C38, and C39 are connected in parallel between the source of NMOS transistor Q3B and interface T1. The source of NMOS transistor Q3A is grounded. Inductor L2 is connected between interface T1 and interface T2. Interfaces T1 and T2 are connected to the transmitting coil.

[0059] Please refer to Figure 8In step 30, the wireless power supply module includes a wireless receiver chip U8, capacitors C1, C2, C4-C15, C18, C19, resistors R29-R38, inductor L3, PMOS transistors Q4 and Q5, and interfaces P and N. Interfaces P and N are connected to the receiving coil. Inductor L3 is connected between interfaces P and N. Capacitors C13, C14, and C15 are connected in parallel between interface N and pin 26 of the wireless receiver chip U8. Pin 26 of the wireless receiver chip U8 is also electrically connected to one end of capacitors C9, C11, and C12 and pin 25 of the wireless receiver chip U8. The other end of capacitor C9 is electrically connected to pin 24 of the wireless receiver chip U8. The other end of capacitor C11 is electrically connected to pin 25 of the wireless receiver chip U8. The other end is electrically connected to interface P, pins 31 and 29 of the wireless receiver chip U8, and one end of capacitors C10 and C8. The other end of capacitor C10 is electrically connected to pin 32 of the wireless receiver chip U8, and the other end of capacitor C8 is electrically connected to pin 1 of the wireless receiver chip U8. Pins 2, 3, and 4 of the wireless receiver chip U8 are electrically connected to one end of capacitors C4 and C5 and the source of PMOS transistor Q5. Pin 18 of the wireless receiver chip U8 is electrically connected to the gates of PMOS transistors Q4 and Q5. The drain of PMOS transistor Q5 is electrically connected to the drain of PMOS transistor Q4. The source of PMOS transistor Q4 is electrically connected to one end of capacitor C19, pin 19 of the wireless receiver chip U8, and the input terminal of the sterilization module. The other end of capacitor C19 is connected in series with resistor R29 and then grounded. In this embodiment, the model of the wireless receiver chip U8 is MT5705.

[0060] Please refer to Figure 8Pin 8 of the wireless receiver chip U8 is electrically connected to one end of resistors R38 and R37; pin 11 of the wireless receiver chip U8 is electrically connected to one end of resistors R36 and R35; pin 14 of the wireless receiver chip U8 is electrically connected to one end of capacitor C18; pin 17 of the wireless receiver chip U8 is electrically connected to one end of resistors R34 and R33; pin 16 of the wireless receiver chip U8 is electrically connected to one end of resistor R32; pin 15 of the wireless receiver chip U8 is electrically connected to one end of resistor R31; the other ends of resistors R38, R36, and R34 are all electrically connected to pin 6 of the wireless receiver chip U8 and one end of capacitor C6; pin 5 of the wireless receiver chip U8 is electrically connected to one end of capacitor C7; and the other ends of resistors R37, R35, R33, capacitors C18, C6, and C7 are all grounded. Pin 21 of the wireless receiver chip U8 is electrically connected to one end of resistor R30. The other end of resistor R30 is electrically connected to capacitors C1 and C2, and pins 22 and 23 of the wireless receiver chip U8. The other ends of capacitors C1 and C2 are both grounded. Pins 13, 12, 20, 27, 7, and 33 of the wireless receiver chip U8 are all grounded.

[0061] Please refer to Figure 9 In step 40, the sterilization module includes a detection circuit, a boost converter chip U3, capacitors C17, C20, C16, and C44, resistors R39, R27, and R28, a diode D5, an ultraviolet germicidal lamp LED7, transistors Q6 and Q7, and an inductor L4. Pins 2 and 5 of the wired power supply module's interface CN2 and pin 19 of the wireless receiver chip U8 of the wireless power supply module are electrically connected to one end of capacitors C20 and C17, one end of inductor L4, pins 4 and 5 of boost converter chip U3, and the input terminal of the detection circuit. The other end of inductor L4 is electrically connected to pin 1 of boost converter chip U3 and the positive terminal of diode D5. Pin 3 of U3 is electrically connected to one end of resistors R39 and R26. Capacitors C16 and C44 are connected in parallel, with one end grounded. The other ends of capacitors C16 and C44, resistor R39, and the cathode of diode D5 are electrically connected to the anode of UV germicidal lamp LED7. The cathode of UV germicidal lamp LED7 is electrically connected to the collector of transistor Q6. The base of transistor Q6 is electrically connected to one end of resistor R27 and the collector of transistor Q7. The other end of resistor R27 is electrically connected to the output of the detection circuit. The base of transistor Q7, the emitter of transistor Q6, and one end of resistor R28 are electrically connected. The other end of resistor R28 and the emitter of transistor Q7 are both grounded. In this embodiment, the boost chip U3 is model ME2159.

[0062] Please refer to Figure 9The detection circuit includes a Hall sensor U21 and a capacitor C21. The output terminals of the wired power supply module and the wireless power supply module are electrically connected to one end of the capacitor C21 and pin V of the Hall sensor U21. Pin O of the Hall sensor U21 is electrically connected to the other end of the resistor R27. Pin G of the Hall sensor U21 and the other end of the capacitor C21 are both grounded. In this embodiment, the Hall sensor U21 is model HAL2481 H.

[0063] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0064] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention 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 invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sterilization control system, applied to electric toothbrushes and sterilization boxes, characterized in that, The electric toothbrush is fixed with a first circuit board, which is provided with a lithium battery module, an MCU control module, a charging control module, a wired charging module, and a wireless charging module. The lithium battery module supplies power to the MCU module. The signal output terminal of the MCU control module is electrically connected to the signal input terminal of the charging control module. The wired charging module includes a charging interface CN1. The signal output terminal of the charging control module is electrically connected to the charging interface CN1 and the signal input terminal of the wireless charging module. The output terminal of the wireless charging module is electrically connected to a transmitting coil. The sterilization box is equipped with a second circuit board, which includes a wired power supply module, a wireless power supply module, and a sterilization module. The outputs of the wired and wireless power supply modules are electrically connected to the input of the sterilization module. The wired power supply module includes a power supply interface CN2 corresponding to the charging interface CN1. The power supply interface CN2 is connected to the charging interface CN1 via an external wire. The input of the wireless power supply module is electrically connected to a receiving coil, which is wirelessly connected to a transmitting coil. The MCU control module includes a control chip U5, a capacitor C22, resistors R14 and R15, and a switch S1. One end of resistors R14 and R15 and pin 16 of control chip U5 are electrically connected to the positive terminal of the lithium battery. The other end of resistor R14 is electrically connected to pin 15 of control chip U5 and one end of switch S1. The other end of resistor R15 is electrically connected to pin 12 of control chip U5. Pin 1 of control chip U5 and the other end of switch S1 are both grounded. Capacitor C22 is connected between pin 1 and pin 16 of control chip U5. Pin 11 of control chip U5 is a signal output terminal and is electrically connected to the signal input terminal of the charging control module. Pin 12 of control chip U5 is electrically connected to pins 3 and 4 of charging interface CN1. When pins 3 and 4 of charging interface CN1 are low, control chip U5... Upon detecting the low-level signal, the charging control module is activated to supply power to the sterilization module; when pins 3 and 4 of the charging interface CN1 are at a high level, the control chip U5 detects the high-level signal and controls the charging control module to turn off, stopping the supply of power to the sterilization module. The control chip U5 is model HT66F004; The wireless power supply module includes a wireless receiver chip U8, the model of which is MT5705.

2. The sterilization control system according to claim 1, characterized in that: The lithium battery module includes a lithium battery, a charging chip U1, resistors R1, R5, and R11, and a capacitor C3. The positive terminal of the lithium battery is electrically connected to pin 3 of the charging chip U1. Pin 1 of the charging chip U1 is electrically connected to the signal output terminal of the MCU control module. Pin 4 of the charging chip U1 is electrically connected to one end of capacitor C3 and resistor R5, and pins 2 and 5 of the charging interface CN1. The other end of resistor R5 is electrically connected to one end of resistor R11 and the input terminal of the MCU control module. Resistors R11, R1, C3, and pin 2 of the charging chip U1 are all grounded.

3. The sterilization control system according to claim 2, characterized in that: The charging control module includes resistors R7 and R12, diode D1, and transistor Q1. Resistor R12 is electrically connected between the output terminal of the MCU control module and the base of transistor Q1. The positive terminal of the lithium battery is electrically connected to the emitter of transistor Q1 and one end of resistor R7. The other end of resistor R7 is electrically connected to the base of transistor Q1. The collector of transistor Q1 is electrically connected to the anode of diode D1 and the input terminal of the wireless charging module. The cathode of diode D1 is electrically connected to pins 2 and 5 of charging interface CN1 and the output terminal of the lithium battery module. When the signal output terminal of the MCU control module outputs a low level, transistor Q1 is turned on, thus powering the sterilization module. When the signal output terminal of the MCU control module outputs a high level, transistor Q1 is turned off, thus stopping power supply to the sterilization module. Pin 11 of the control chip U5 of the MCU control module is connected to resistor R12.

4. The sterilization control system according to claim 2, characterized in that: The MCU control module also includes resistors R19 and R20, and LEDs 1, 2, 3, 4, 5, and 6. Pins 2, 3, 4, 6, 8, and 10 of the control chip U5 are electrically connected to the positive terminals of LEDs 4, 1, 5, 2, 6, and 3, respectively. The negative terminals of LEDs 4, 1, 5, and 2 are electrically connected to one end of resistor R19, and the negative terminals of LEDs 6 and 3 are electrically connected to one end of resistor R20. The other ends of resistors R19 and R20 are both grounded.

5. The sterilization control system according to claim 1, characterized in that: The wireless charging module includes a boost converter chip U2, a wireless transmitter chip U7, inductors L1 and L2, resistors R2, R3, R4, R6, R13, R17, and R18, capacitors C23-C28, capacitors C32-C39, NMOS transistors Q2A, Q2B, Q3A, and Q3B, diode D4, and interfaces T1 and T2. The signal output terminal of the charging control module is electrically connected to pins 4 and 5 of the boost converter chip U2 and one end of inductor L1. The other end of inductor L1 is electrically connected to pin 1 of the boost converter chip U2 and the positive terminal of diode D4. Pin 3 of the boost converter chip U2 is electrically connected to one end of resistors R3 and R13. The other end of resistor R3 is connected to the negative terminal of diode D4, capacitors C23 and C24, one end of resistor R4, and the NMOS transistor. The drain of transistor Q3B and the drain of NMOS transistor Q2A are electrically connected. The other end of resistor R2 is electrically connected to pin 5 of wireless transmitter chip U7 and one end of resistor R6. Pin 46 of wireless transmitter chip U7 is electrically connected to one end of capacitors C25 and C26. The other end of capacitor C26 is electrically connected to pin 45 of wireless transmitter chip U7. Pin 42 of wireless transmitter chip U7 is electrically connected to one end of capacitor C27. The other end of resistor R4 is electrically connected to one end of capacitor C28 and pins 38, 40, and 41 of wireless transmitter chip U7. Capacitors C24, C25, C27, C28, C23, the other end of resistor R6, and pins 36 and 48 of wireless transmitter chip U7 are all grounded. Pins 30, 28, 26, and 24 of wireless transmitter chip U7 are respectively connected to NMOS transistors. The gates of transistors Q2A, Q2B, Q3B, and Q3A are electrically connected. The source of NMOS transistor Q2A is electrically connected to capacitor C32, one end of resistor R17, the drain of NMOS transistor Q2B, pin 29 of wireless transmitter chip U7, and interface T2. The source of NMOS transistor Q2B is grounded. The other end of capacitor C32 is electrically connected to pin 31 of wireless transmitter chip U7. The other end of resistor R17 is connected in series with capacitor C34 and then grounded.The source of NMOS transistor Q3B is electrically connected to capacitor C33, one end of resistor R18, pin 25 of wireless transmitter chip U7, and the drain of NMOS transistor Q3A. The other end of capacitor C33 is electrically connected to pin 27 of wireless transmitter chip U7. The other end of resistor R18 is connected in series with capacitor C35 and then grounded. Capacitors C36, C37, C38, and C39 are connected in parallel between the source of NMOS transistor Q3B and interface T1. The source of NMOS transistor Q3A is grounded. Inductor L2 is connected between interface T1 and interface T2. Interfaces T1 and T2 are connected to the transmitting coil.

6. The sterilization control system according to claim 1, characterized in that: The wireless power supply module also includes capacitors C4, C5, C8-C15, C19, resistor R29, inductor L3, PMOS transistors Q4 and Q5, and interfaces P and N. Interfaces P and N are connected to the receiving coil. Inductor L3 is connected between interfaces P and N. Capacitors C13, C14, and C15 are connected in parallel between interface N and pin 26 of the wireless receiver chip U8. Pin 26 of the wireless receiver chip U8 is also electrically connected to one end of capacitors C9, C11, and C12 and pin 25 of the wireless receiver chip U8. The other end of capacitor C9 is electrically connected to pin 24 of the wireless receiver chip U8. The other end of capacitor C11 is electrically connected to pin 25 of the wireless receiver chip U8. The other end of capacitor C12 is connected to interface P and pins 31 and 29 of the wireless receiver chip U8. One end of capacitors C10 and C8 is electrically connected. The other end of capacitor C10 is electrically connected to pin 32 of wireless receiver chip U8. The other end of capacitor C8 is electrically connected to pin 1 of wireless receiver chip U8. Pins 2, 3, and 4 of wireless receiver chip U8 are electrically connected to one end of capacitors C4 and C5 and the source of PMOS transistor Q5. Pin 18 of wireless receiver chip U8 is electrically connected to the gates of PMOS transistors Q4 and Q5. The drain of PMOS transistor Q5 is electrically connected to the drain of PMOS transistor Q4. The source of PMOS transistor Q4 is electrically connected to one end of capacitor C19, pin 19 of wireless receiver chip U8, and the input terminal of sterilization module. The other end of capacitor C19 is connected in series with resistor R29 and then grounded.

7. The sterilization control system according to claim 1, characterized in that: The sterilization module includes a detection circuit, a boost converter chip U3, capacitors C17, C20, C16, and C44, resistors R39, R27, and R28, a diode D5, an ultraviolet germicidal lamp LED7, transistors Q6 and Q7, and an inductor L4. The output terminals of the wired and wireless power supply modules are electrically connected to one end of capacitors C20 and C17, one pin of the boost converter chip U3, and the input terminal of the detection circuit. The other end of the inductor L4 is electrically connected to one pin of the boost converter chip U3 and the positive terminal of the diode D5. One pin of the boost converter chip U3 is electrically connected to one end of resistors R39 and R26. Capacitors C16 and C44 are connected in parallel with one end grounded. The other ends of capacitors C16 and C44, resistor R39, and the negative terminal of diode D5 are connected to the ultraviolet germicidal lamp LED7. The positive terminal of the LED7 is electrically connected to the negative terminal of the UV germicidal lamp, which is electrically connected to the collector of the transistor Q6. The base of the transistor Q6 is electrically connected to one end of the resistor R27 and the collector of the transistor Q7. The other end of the resistor R27 is electrically connected to the output terminal of the detection circuit. The base of the transistor Q7 is electrically connected to the emitter of the transistor Q6 and one end of the resistor R28. The other end of the resistor R28 and the emitter of the transistor Q7 are both grounded.

8. The sterilization control system according to claim 7, characterized in that: The detection circuit includes a Hall sensor U21 and a capacitor C21. The output terminals of the wired power supply module and the wireless power supply module are electrically connected to one end of the capacitor C21 and the pin V of the Hall sensor U21. The pin O of the Hall sensor U21 is electrically connected to the other end of the resistor R27. The pin G of the Hall sensor U21 and the other end of the capacitor C21 are both grounded.

9. The sterilization control system according to claim 2, characterized in that: The first circuit board is also provided with a protection module, which includes a protection chip U4 and a resistor R16. Pin 3 of the protection chip U4 is electrically connected to one end of the resistor R16. The other end of the resistor R16 and pin 2 of the protection chip U4 are electrically connected to the positive and negative terminals of the lithium battery, respectively. Pins 4 and 5 of the protection chip U4 are both grounded.

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