CN208989209U - Control circuit of wireless rechargeable electric toothbrush - Google Patents
Control circuit of wireless rechargeable electric toothbrush Download PDFInfo
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- CN208989209U CN208989209U CN201721896364.8U CN201721896364U CN208989209U CN 208989209 U CN208989209 U CN 208989209U CN 201721896364 U CN201721896364 U CN 201721896364U CN 208989209 U CN208989209 U CN 208989209U
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Abstract
The utility model relates to a control circuit of wireless rechargeable electric toothbrush, overcurrent overvoltage protection circuit connects rectifier filter circuit, rectifier filter circuit connects non-isolator power step-down circuit, non-isolator power step-down circuit connects wireless charging transmitting circuit, wireless charging receiving circuit connects lithium cell charging circuit, main control circuit respectively, lithium cell charging circuit connects battery BT1, UV LED lamp drive circuit connects UV LED lamp D5, high frequency motor drive circuit connects high frequency motor M1, main control circuit connects switch key S1 respectively, UV LED lamp drive circuit, high frequency motor power supply circuit, lithium cell charging circuit, wireless charging receiving circuit and pilot lamp circuit; therefore, the toothbrush can kill bacteria attached to teeth while cleaning dental stains by high-frequency vibration, and the morbidity of oral diseases is greatly reduced; the inconvenience caused by wired power supply of the traditional electric toothbrush is avoided, the circuit is protected, and the damage of lightning stroke is prevented.
Description
Technical field
The utility model relates to a kind of field of electric toothbrushes, refer in particular to a kind of control electricity of wireless charging type electric toothbrush
Road.
Background technique
Existing toothbrush is largely electric toothbrush, but electric toothbrush is at daily cleaning oral cavity, can not be effective
Intraoral bacterium is eliminated, mouth disease is caused to grow in intensity, seriously endangers the health of people；Meanwhile on existing market
Electric toothbrush substantially use dry cell or common batteries, have plenty of wired power supply, use is very inconvenient, also in need
It dismantles battery altering or disassembles and charge, it is inconvenient to use；During the charging process, it is easy to influence electricity because of overcharging
The pond service life；Moreover, being easy in thundery sky by the destruction being struck by lightning；In addition, existing electric toothbrush, state instruction is indefinite, makes
With inconvenience, practicability is weaker, cannot improve enthusiasm of brushing teeth.
Therefore, in the utility model patent application, applicant has studied intensively a kind of control of wireless charging type electric toothbrush
Circuit processed solves the above problem.
Utility model content
For deficiency present in the above-mentioned prior art, main purpose is to provide a kind of wireless charging type electricity the utility model
The control circuit of dynamic toothbrush can kill the bacterium being attached on tooth while high-frequency vibration cleaning tooth dirt, substantially reduce
The incidence probability of mouth disease；It is inconvenient to avoid the wired power supply bring of conventional power toothbrush, moreover, effective protection circuit and anti-
The only destruction of thundery sky lightning stroke；Meanwhile, it is capable to which the use state and charged state of dynamic and intuitive prominent electric toothbrush, improve brush
Tooth enthusiasm, it is practical.
To realize above-mentioned purpose, the utility model adopts the following technical scheme:
A kind of control circuit of wireless charging type electric toothbrush, including governor circuit, wireless charging transmit circuit, wireless charging
Electricity receives circuit, switch key S1, battery BT1, high-frequency electric machines M1, lithium battery charging circuit, high-frequency electric machines power circuit, instruction
Circuit for lamp, high-frequency electric machines driving circuit, UV LED light D5, the UV LED lamp drive circuit for driving UV LED light D5 and company
It is connected to the electric power management circuit of 90V to 120V alternating current；
The electric power management circuit includes current rectifying and wave filtering circuit, Unisolated switch power voltage step down circuit and is connected to 90V
To the overcurrent-overvoltage protecting circuit of 120V alternating current, the overcurrent-overvoltage protecting circuit connects current rectifying and wave filtering circuit, the rectification filter
Wave circuit connects Unisolated switch power voltage step down circuit, the Unisolated switch power voltage step down circuit connection wireless charging transmitting electricity
Road, the electromagnetic energy that the wireless charging transmit circuit sends wireless charging receive circuit, the wireless charging to wireless charging
It receives circuit and is separately connected lithium battery charging circuit, governor circuit, the lithium battery charging circuit connects battery BT1, the electricity
Pond BT1 is separately connected UV LED lamp drive circuit and high-frequency electric machines power circuit, and the UV LED lamp drive circuit connects UV
LED light D5, the high-frequency electric machines power circuit connect high-frequency electric machines driving circuit, and the high-frequency electric machines driving circuit connects high frequency
Motor M1, the governor circuit are separately connected switch key S1, UV LED lamp drive circuit, high-frequency electric machines driving circuit, high frequency
Motor power circuit, lithium battery charging circuit, wireless charging receive circuit and indicator light circuit.
As a preferred embodiment, the governor circuit includes main control chip U4, and the main control chip U4 draws with master control
Foot 1 to master control pin 14, the anode connection master control pin 1 of battery BT1, master control pin is grounded by capacitor C10, master control pin 2
High-frequency electric machines power circuit is connected, master control pin 3 is grounded by aforementioned switches switch S1, and master control pin 4 connects wireless charging and connects
Circuit is received, master control pin 5 connects lithium battery charging circuit, master control pin 8, master control pin 9, master control pin 10 and master control pin
1 is separately connected aforementioned indicator light circuit, and master control pin 11 connects aforementioned UV LED lamp drive circuit, and master control pin 13 connects aforementioned
High-frequency electric machines driving circuit, master control pin 11 are grounded.
As a preferred embodiment, the high-frequency electric machines driving circuit includes resistance R13, the first N-type metal-oxide-semiconductor Q1, capacitor
C9 and diode D4, aforementioned master control pin 13 connect the grid of the first N-type metal-oxide-semiconductor Q1, and the grid of N-type metal-oxide-semiconductor passes through resistance
R13 ground connection, the source electrode ground connection of the first N-type metal-oxide-semiconductor Q1, one end of the drain electrode connection high-frequency electric machines M1 of the first N-type metal-oxide-semiconductor Q1 are high
The other end of frequency motor M1 connects high-frequency electric machines power circuit, and the high-frequency electric machines power circuit connects the cathode of diode D4,
One end of the anode connection high-frequency electric machines M1 of diode D4, the capacitor C9 are parallel to the both ends of high-frequency electric machines M1.
As a preferred embodiment, the UV LED lamp drive circuit includes the second N-type metal-oxide-semiconductor Q2, resistance R14, UV
LED light D5, resistance R11, resistance R12 and resistance R15, aforementioned master control pin 11 connect the grid of the second N-type metal-oxide-semiconductor Q2, the
The grid of two N-type metal-oxide-semiconductor Q2 is grounded by resistance R14, the source electrode ground connection of the second N-type metal-oxide-semiconductor Q2, the leakage of the second N-type metal-oxide-semiconductor Q2
Pole connects the cathode of UV LED light D5, and the anode of UV LED light D5 passes through the anode of resistance R11 connection battery BT1, resistance R12's
One end connects the anode of battery BT1, one end of the other end connection resistance R15 of resistance R12, and the other end of resistance R15 connects UV
The cathode of LED light D5.
As a preferred embodiment, the overcurrent-overvoltage protecting circuit includes fuse F1 and varistor RV1, fuse
One end of F1 connects the zero line Ain1 of 90V to 120V alternating current, and the other end of fuse F1 connects one end of varistor RV1,
The other end of varistor RV1 connects the zero line side Ain2 of 90V to 120V alternating current；
The current rectifying and wave filtering circuit includes capacitor C1, inductance L1, diode D1, diode D2, diode D3, diode
D4, polar capacitor C2, polar capacitor C3, resistance R2 and resistance R3, the capacitor C1 are parallel to the both ends of varistor RV1,
One end of the first end connection varistor RV1 of inductance L1, the other end of the third end connection varistor RV1 of inductance L1, electricity
The second end of sense L1 is separately connected the cathode of diode D1 and the anode of diode D2, and the 4th end of inductance L1 is separately connected two poles
The cathode of pipe D4 and the anode of diode D3, the anode of diode D1 and the anode of diode D4 are grounded jointly, diode D2's
The cathode of cathode and diode D3 connect the anode of polar capacitor C2 jointly, the cathode connection polar capacitor C3's of polar capacitor C2
Anode, the resistance R2 are parallel to the positive and negative electrode of polar capacitor C2, and the resistance R2 is grounded by resistance R3, polar capacitor C3
Cathode ground connection；
Unisolated switch power voltage step down circuit includes switching power source chip U5, polar capacitor C4, capacitor C51, polar capacitor
C7, diode D5, diode D6, diode D7, zener diode D8 and inductance L2, the switching power source chip U5 have electricity
Source pin 1 is grounded to power pins 8, power pins 1 and power pins 2 commonly through diode D7, and power pins 2 pass through capacitor
C5 connection power pins 3, power pins 3 connect the anode of zener diode D8, and the cathode of zener diode D8 connects diode
The anode of D5, the cathode of diode D5 are separately connected the anode and power pins 4 of polar capacitor C4, and the cathode of polar capacitor C4 connects
Power pins 2 are connect, for the anode of diode D5 by capacitor C51 connection power pins 2, one end of inductance L2 connects power pins 2,
The other end of inductance L2 is separately connected the anode of polar capacitor C7 and wireless charging transmit circuit, the cathode of polar capacitor C7 connect
Ground, the anode of the cathode connecting diode D6 of polar capacitor C7, the anode of the cathode connection diode D5 of diode D6.
As a preferred embodiment, the wireless charging transmit circuit includes wireless charging transmitting chip U6, inductance L3, electricity
Holding C90, capacitor C60, capacitor C80, resistance R40, resistance R50 and resistance R60, the wireless charging transmitting chip U6 has hair
Pin 1 is penetrated to transmitting pin 8, transmitting pin 1 emits pin 6 by resistance R50 connection, and the other end connection transmitting of inductance L2 is drawn
Foot 1, transmitting pin 1 are grounded by capacitor C90, and transmitting pin 3 emits pin 1 by inductance L3 connection, and the capacitor C60 is in parallel
In the both ends of inductance L3, emit pin 4 and be grounded, transmitting pin 6 emits pin 8 by capacitor C80 connection, and transmitting pin 7 passes through
Resistance R60 connection emits pin 8, and transmitting pin 8 emits pin 1 by resistance R40 connection.
As a preferred embodiment, it includes that wireless charging receives chip U2, diode D10, two that wireless charging, which receives circuit,
Pole pipe D20, capacitor C51, capacitor C61, resistance R20, resistance R5, resistance R1, resistance R6, capacitor C10 and it is matched with inductance L3
Inductance L21, the wireless charging, which receives chip U2 and has, receives pin 1 to pin 8 is received, and receives pin 2 and is separately connected two
The cathode and reception pin 7, the anode of diode D10 of pole pipe D10 is grounded by inductance L21, the parallel connection of the both ends the inductance L21
Capacitor C51 receives pin 7 and is grounded by capacitor C61, receives pin 4 and is grounded, and receives the yin that pin 3 is separately connected diode D2
The other end of one end of pole and inductance L1, inductance L1 is grounded by capacitor C20, and the both ends capacitor C20 shunt capacitance C10, reception is drawn
Foot 5 passes through the other end of resistance R20 connection inductance L1, receives pin 5 and is grounded by resistance R5, and one end of resistance R1 connects inductance
The other end of L1, the other end series connection R6 ground connection of resistance R1, aforementioned master control pin 4 connect the other end of resistance R1, inductance L1's
The other end connects lithium battery charging circuit.
As a preferred embodiment, the lithium battery charging circuit includes charging chip U1, resistance R30, resistance R70, electricity
Hindering R41, capacitor C31 and capacitor C41, the charging chip U1 has charging pins 1 to charging pins 5, and charging pins 1 pass through
Resistance R30 connection master control pin 5, charging pins 3 are grounded by resistance R70 connection master control pin 5, charging pins 2, battery BT1
Connect charging pins 3, the positive and negative electrode of battery BT1 it is in parallel capacitor C31 and capacitor C41, the anode connection high-frequency electrical of battery BT1
Electromechanical source circuit, charging pins 4 are grounded by resistance R41, and charging pins 5 connect the other end of inductance L1.
As a preferred embodiment, the high-frequency electric machines power circuit include voltage stabilizing chip U3, inductance L31, capacitor C11,
Capacitor C7, capacitor C8, capacitor C11, resistance R10 and resistance R8, the voltage stabilizing chip U3 have pressure stabilizing pin 1 to pressure stabilizing pin
5, pressure stabilizing pin 1 is grounded by resistance R10 connection master control pin 2, pressure stabilizing pin 2, and pressure stabilizing pin 3 passes through inductance L31 connection electricity
Hold C11, capacitor C11 and pressure stabilizing pin 5 to be grounded commonly through resistance R9, resistance R8 is parallel to the both ends capacitor C11, and inductance L31 is logical
Capacitor C7 ground connection is crossed, the other end of the both ends shunt capacitance C8 of capacitor C7, high-frequency electric machines pass through inductance L31 connection pressure stabilizing pin 3；
Pressure stabilizing pin 4 connects charging pins 3.
As a preferred embodiment, the indicator light circuit include the first indicator light LED1, the second indicator light LED2 and
Third indicator light LED3, aforementioned master control pin 8 pass through the cathode of the first indicator light of resistance R16 connection LED1, aforementioned master control pin 9
By the cathode of resistance R17 the second indicator light of connection LED2, aforementioned master control pin 10 passes through resistance R18 connection third indicator light
The cathode of LED3, the anode of the anode of the first indicator light LED1, the anode of the second indicator light LED2 and third indicator light LED3
Common connection master control pin 1.
The utility model has clear advantage and beneficial effect compared with prior art, specifically: passing through high-frequency electrical
Drive circuit, high-frequency electric machines M1, UV LED lamp drive circuit and UV LED light D5, can high-frequency vibration cleaning tooth dirt while
The bacterium being attached on tooth is killed, the incidence probability of mouth disease is substantially reduced；Pass through wireless charging transmitting and wireless charging
Circuit is received, realizes the mode of wireless charging, the wired power supply bring inconvenience of conventional power toothbrush is avoided, using more just
Victory, moreover, by overcurrent-overvoltage protecting circuit, effective protection circuit and the destruction for preventing thundery sky to be struck by lightning；Meanwhile passing through instruction
Circuit for lamp is capable of the use state and charged state of dynamic and intuitive prominent electric toothbrush, improves enthusiasm of brushing teeth, practicability
By force, and, integrated circuit smart structural design is reasonable, and each circuit stability is reliable.
In order to explain the structural features and functions of the invention more clearly, come with reference to the accompanying drawing with specific embodiment to its into
Row is described in detail.
Detailed description of the invention
Fig. 1 is the substantially circuit structure connection block diagram of the embodiment of the utility model；
Fig. 2 is the detailed circuit schematic diagram of the embodiment of the utility model.
Drawing reference numeral explanation:
10, governor circuit 20, wireless charging transmit circuit
30, wireless charging receives circuit 40, lithium battery charging circuit
50, high-frequency electric machines power circuit 60, indicator light circuit
70, high-frequency electric machines driving circuit 80, UV LED lamp drive circuit
90, electric power management circuit 91, current rectifying and wave filtering circuit
92, Unisolated switch power voltage step down circuit 93, overcurrent-overvoltage protecting circuit
100, alternating current
BT1, battery D5, UV LED light
M1, high-frequency electric machines S1, switch key.
Specific embodiment
The utility model is further described with specific embodiment with reference to the accompanying drawing.
As depicted in figs. 1 and 2, a kind of control circuit of wireless charging type electric toothbrush, including governor circuit 10, wireless charging
Electric transmit circuit 20, wireless charging receive circuit 30, switch key S1, battery BT1, high-frequency electric machines M1, lithium battery charging circuit
40, high-frequency electric machines power circuit 50, indicator light circuit 60, high-frequency electric machines driving circuit 70, UV LED light D5, for driving UV
The UV LED lamp drive circuit 80 of LED light D5 and the electric power management circuit 90 for being connected to 90V to 120V alternating current 100, in which:
The electric power management circuit 90 includes current rectifying and wave filtering circuit 91, Unisolated switch power voltage step down circuit 92 and connection
In the overcurrent-overvoltage protecting circuit 93 of 90V to 120V alternating current 100, the overcurrent-overvoltage protecting circuit 93 connects current rectifying and wave filtering circuit
91, the current rectifying and wave filtering circuit 91 connects Unisolated switch power voltage step down circuit 92, the Unisolated switch power voltage step down circuit
92 connection wireless charging transmit circuits 20, the wireless charging transmit circuit 20 send the electromagnetic energy of wireless charging to wireless charging
Electricity receives circuit 30, and the wireless charging receives circuit 30 and is separately connected lithium battery charging circuit 40, governor circuit 10, the lithium
Battery charger 40 connects battery BT1, and the battery BT1 is separately connected UV LED lamp drive circuit 80 and high-frequency electric machines power supply
Circuit 50, the UV LED lamp drive circuit 80 connect UV LED light D5, and the high-frequency electric machines power circuit 50 connects high-frequency electrical
Drive circuit 70, the high-frequency electric machines driving circuit 70 connect high-frequency electric machines M1, and the governor circuit 10 is separately connected switch
Switch S1, UV LED lamp drive circuit 80, high-frequency electric machines driving circuit 70, high-frequency electric machines power circuit 50, lithium battery charging electricity
Road 40, wireless charging receive circuit 30 and indicator light circuit 60；90V to 120V alternating current 100 through overcurrent-overvoltage protecting circuit 93,
10V direct current is converted to after current rectifying and wave filtering circuit 91 and Unisolated switch power voltage step down circuit 92,10V direct current supplies wireless charging hair
Transmit-receive radio road 20 goes out electric energy with electromagnetic wave directive sending, receives so that wireless charging receives circuit 30, wireless charging connects
It receives and converts electrical energy into 5V direct current after circuit 30 receives to supply lithium battery charging.
In the present embodiment, the governor circuit 10 includes main control chip U4, and the main control chip U4 has master control pin 1
To master control pin 14, the anode connection master control pin 1 of battery BT1, master control pin is grounded by capacitor C10, and master control pin 2 connects
High-frequency electric machines power circuit 50, master control pin 3 are grounded by aforementioned switches switch S1, it should be understood that 1, by primary switch
Switch S1, electric toothbrush in underdrive operating, meanwhile, following third LED light LED3 are bright yellow green, have between following P+1 and P-1
DC3.0V voltage, UV LED light are bright；2, a switch key S1 is pressed again, electric toothbrush is run in middle-grade, meanwhile, following second
LED light LED2 is bright yellow green, there is DC 3.0V voltage between following P+1 and P-1, and UV LED light is bright；3, a switching on and shutting down are pressed again
Key S1, electric toothbrush are run in top grade, meanwhile, following first LED light LED1 are bright yellow green, have DC between following P+1 and P-1
3.0V voltage, UV LED light are bright；4, a switch key S1 is pressed again, electric toothbrush is out of service, meanwhile, the first LED light
LED1, the second LED light LED2 and third LED light LED3 extinguish, No DC 3.0V voltage, UV between following P+1 and P-1
LED extinguishes；
Master control pin 4 connects wireless charging and receives circuit 30, and master control pin 5 connects lithium battery charging circuit 40, and master control is drawn
Foot 11 is grounded；Master control pin 8, master control pin 9, master control pin 10 and master control pin 1 are separately connected aforementioned indicator light circuit 60；
In the present embodiment, the indicator light circuit 60 includes the first indicator light LED1, the second indicator light LED2 and third indicator light
LED3, aforementioned master control pin 8 pass through the cathode of the first indicator light of resistance R16 connection LED1, and aforementioned master control pin 9 passes through resistance
The cathode of R17 the second indicator light of connection LED2, aforementioned master control pin 10 pass through the yin of resistance R18 connection third indicator light LED3
The anode of pole, the anode of the first indicator light LED1, the anode of the second indicator light LED2 and third indicator light LED3 connects jointly
Master control pin 1；In charging, the first indicator light LED1, the second indicator light LED2 and third indicator light LED3 circulation are bright, i.e., and the
Three indicator light LED3 first bright 0.5 second, then, the second indicator light LED2 and third indicator light LED3 bright 0.5 second simultaneously, then first refer to
Show lamp LED1, the second indicator light LED2 and third indicator light LED3 bright 0.5 second simultaneously；Then third indicator light LED3 is returned
Bright 0.5 second, do not stop to recycle, when full electricity, the first indicator light LED1, the second indicator light LED2 and third indicator light LED3 are simultaneously
It is bright.
Aforementioned main control chip U4 output pwm signal, by the first N-type metal-oxide-semiconductor Q1 driving high-frequency electric machines M1 starting；In this implementation
In example, master control pin 13 connects aforementioned high-frequency electric machines driving circuit 70；The high-frequency electric machines driving circuit 70 include resistance R13,
First N-type metal-oxide-semiconductor Q1, capacitor C9 and diode D4, aforementioned master control pin 13 connect the grid of the first N-type metal-oxide-semiconductor Q1, N-type
The grid of metal-oxide-semiconductor is grounded by resistance R13, the source electrode ground connection of the first N-type metal-oxide-semiconductor Q1, the drain electrode connection of the first N-type metal-oxide-semiconductor Q1
One end of high-frequency electric machines M1, the other end of high-frequency electric machines M1 connect high-frequency electric machines power circuit 50, the high-frequency electric machines power supply electricity
Road 50 connects the cathode of diode D4, one end of the anode connection high-frequency electric machines M1 of diode D4, and the capacitor C9 is parallel to height
The both ends of frequency motor M1.
Aforementioned main control chip U4 output pwm signal, by the first N-type metal-oxide-semiconductor Q1 driving UV LED light D5 starting；In this implementation
In example, master control pin 11 connects aforementioned UV LED lamp drive circuit 80, and the UV LED lamp drive circuit 80 includes the second N-type
Metal-oxide-semiconductor Q2, resistance R14, UV LED light D5, resistance R11, resistance R12 and resistance R15, aforementioned master control pin 11 connect the 2nd N
The grid of the grid of type metal-oxide-semiconductor Q2, the second N-type metal-oxide-semiconductor Q2 is grounded by resistance R14, the source electrode ground connection of the second N-type metal-oxide-semiconductor Q2,
The cathode of the drain electrode connection UV LED light D5 of second N-type metal-oxide-semiconductor Q2, the anode of UV LED light D5 pass through resistance R11 connection battery
The anode of BT1, the anode of one end connection battery BT1 of resistance R12, one end of the other end connection resistance R15 of resistance R12, electricity
Hinder the cathode of the other end connection UV LED light D5 of R15；First voltage test point P+1 is respectively arranged at the both ends of resistance R15
With second voltage test point P-1.
The overcurrent-overvoltage protecting circuit 93 includes fuse F1 and varistor RV1, and one end of fuse F1 connects 90V
To the zero line Ain1 of 120V alternating current 100, the other end of fuse F1 connects one end of varistor RV1, varistor RV1's
The other end connects the zero line side Ain2 of 90V to 120V alternating current 100；
The current rectifying and wave filtering circuit 91 includes capacitor C1, inductance L1, diode D1, diode D2, diode D3, diode
D4, polar capacitor C2, polar capacitor C3, resistance R2 and resistance R3, the capacitor C1 are parallel to the both ends of varistor RV1,
One end of the first end connection varistor RV1 of inductance L1, the other end of the third end connection varistor RV1 of inductance L1, electricity
The second end of sense L1 is separately connected the cathode of diode D1 and the anode of diode D2, and the 4th end of inductance L1 is separately connected two poles
The cathode of pipe D4 and the anode of diode D3, the anode of diode D1 and the anode of diode D4 are grounded jointly, diode D2's
The cathode of cathode and diode D3 connect the anode of polar capacitor C2 jointly, the cathode connection polar capacitor C3's of polar capacitor C2
Anode, the resistance R2 are parallel to the positive and negative electrode of polar capacitor C2, and the resistance R2 is grounded by resistance R3, polar capacitor C3
Cathode ground connection；
Unisolated switch power voltage step down circuit 92 includes switching power source chip U5, polar capacitor C4, capacitor C51, polarity electricity
Hold C7, diode D5, diode D6, diode D7, zener diode D8 and inductance L2, the switching power source chip U5 has
Power pins 1 are grounded to power pins 8, power pins 1 and power pins 2 commonly through diode D7, and power pins 2 pass through electricity
Hold C5 connection power pins 3, power pins 3 connect the anode of zener diode D8, and the cathode of zener diode D8 connects two poles
The anode of pipe D5, the cathode of diode D5 are separately connected the anode and power pins 4 of polar capacitor C4, the cathode of polar capacitor C4
Power pins 2 are connected, for the anode of diode D5 by capacitor C51 connection power pins 2, one end of inductance L2 connects power pins
2, the other end of inductance L2 is separately connected the anode and wireless charging transmit circuit 20 of polar capacitor C7, the cathode of polar capacitor C7
Ground connection, the anode of the cathode connecting diode D6 of polar capacitor C7, the anode of the cathode connection diode D5 of diode D6.
The lithium battery charging circuit 40 include charging chip U1, resistance R30, resistance R70, resistance R41, capacitor C31 with
And capacitor C41, the charging chip U1 have charging pins 1 to charging pins 5, charging pins 1 pass through resistance R30 connection master control
Pin 5, charging pins 3 are grounded by resistance R70 connection master control pin 5, charging pins 2, battery BT1 connection charging pins 3, electricity
In parallel capacitor C3 and capacitor C4, the anode connection high-frequency electric machines power circuit 50 of battery BT1 fill respectively for the positive and negative electrode of pond BT1
Electric pin 4 is grounded by resistance R41, and charging pins 5 connect the other end of inductance L1.
The high-frequency electric machines power circuit 50 includes voltage stabilizing chip U3, inductance L31, capacitor C11, capacitor C7, capacitor C8, electricity
Holding C11, resistance R10 and resistance R8, the voltage stabilizing chip U3 has pressure stabilizing pin 1 to pressure stabilizing pin 5, and pressure stabilizing pin 1 passes through
Resistance R10 connection master control pin 2, pressure stabilizing pin 2 be grounded, pressure stabilizing pin 3 by inductance L31 connection capacitor C11, capacitor C11 with
Pressure stabilizing pin 5 is grounded commonly through resistance R9, and resistance R8 is parallel to the both ends capacitor C11, and inductance L31 is grounded by capacitor C7, electricity
Hold the both ends shunt capacitance C8 of C7, the other end of high-frequency electric machines passes through inductance L31 connection pressure stabilizing pin 3；The connection of pressure stabilizing pin 4 is filled
Electric pin 3.
The wireless charging transmit circuit 20 include wireless charging transmitting chip U6, inductance L3, capacitor C90, capacitor C60,
Capacitor C80, resistance R40, resistance R50 and resistance R60, the wireless charging transmitting chip U6 have transmitting pin 1 to transmitting
Pin 8, transmitting pin 1 emit pin 6 by resistance R50 connection, and the other end connection transmitting pin 1 of inductance L2 emits pin 1
It is grounded by capacitor C90, transmitting pin 3 emits pin 1 by inductance L3 connection, and the capacitor C60 is parallel to the two of inductance L3
End, transmitting pin 4 are grounded, and transmitting pin 7 emits pin 8 by capacitor C80 connection, and transmitting pin 6 is sent out by resistance R60 connection
Pin 8 is penetrated, transmitting pin 8 emits pin 1 by resistance R40 connection.
Wireless charging receive circuit 30 include wireless charging receive chip U2, diode D10, diode D20, capacitor C51,
Capacitor C61, resistance R20, resistance R5, resistance R1, resistance R6, capacitor C10 and the inductance L2 for being matched with inductance L3, it is described wireless
Charging, which receives chip U2, has reception pin 1 to pin 8 is received, and receives cathode and reception that pin 2 is separately connected diode D10
The anode of pin 7, diode D10 is grounded by inductance L2, the both ends the inductance L2 it is in parallel capacitor C51, receive pin 7 and pass through
Capacitor C61 ground connection receives pin 4 and is grounded, and receives pin 3 and is separately connected the cathode of diode D20 and one end of inductance L1, inductance
The other end of L1 is grounded by capacitor C20, the both ends capacitor C20 shunt capacitance C10, is received pin 5 and is passed through resistance R20 connection inductance
The other end of L1 receives pin 5 and is grounded by resistance R5, and the other end of one end connection inductance L1 of resistance R1, resistance R1's is another
One end series connection R6 ground connection, aforementioned master control pin 4 connect the other end of resistance R1, and the other end connection lithium battery charging of inductance L1 is electric
Road 40.
The utility model designing points are, mainly pass through high-frequency electric machines driving circuit, high-frequency electric machines M1, UV LED
Lamp drive circuit and UV LED light D5 can kill the bacterium being attached on tooth while high-frequency vibration cleaning tooth dirt, significantly
Reduce the incidence probability of mouth disease；Circuit is received by wireless charging transmitting and wireless charging, realizes the mode of wireless charging,
The wired power supply bring inconvenience of conventional power toothbrush is avoided, use is more convenient, moreover, by overcurrent-overvoltage protecting circuit,
Effective protection circuit and the destruction for preventing thundery sky to be struck by lightning；Meanwhile by indicator light circuit, dynamic and can intuitively protrude electronic
The use state and charged state of toothbrush improve enthusiasm of brushing teeth, practical, and, integrated circuit smart structural design is closed
Reason, each circuit stability are reliable.
The above is only the utility model preferred embodiment, not appoints to the technical scope of the utility model
What is limited, therefore any trickle amendment made by the above technical examples according to the technical essence of the present invention, equivalent variations
With modification, it is still within the scope of the technical solutions of the present invention.
Claims (10)
1. a kind of control circuit of wireless charging type electric toothbrush, it is characterised in that: emit including governor circuit, wireless charging
Circuit, wireless charging receive circuit, switch key S1, battery BT1, high-frequency electric machines M1, lithium battery charging circuit, high-frequency electrical electromechanics
Source circuit, indicator light circuit, high-frequency electric machines driving circuit, UV LED light D5, for driving the UV LED light of UV LED light D5 to drive
Dynamic circuit and the electric power management circuit for being connected to 90V to 120V alternating current；
The electric power management circuit includes current rectifying and wave filtering circuit, Unisolated switch power voltage step down circuit and is connected to 90V extremely
The overcurrent-overvoltage protecting circuit of 120V alternating current, the overcurrent-overvoltage protecting circuit connect current rectifying and wave filtering circuit, the rectifying and wave-filtering
Circuit connection Unisolated switch power voltage step down circuit, the Unisolated switch power voltage step down circuit connection wireless charging transmitting electricity
Road, the electromagnetic energy that the wireless charging transmit circuit sends wireless charging receive circuit, the wireless charging to wireless charging
It receives circuit and is separately connected lithium battery charging circuit, governor circuit, the lithium battery charging circuit connects battery BT1, the electricity
Pond BT1 is separately connected UV LED lamp drive circuit and high-frequency electric machines power circuit, and the UV LED lamp drive circuit connects UV
LED light D5, the high-frequency electric machines power circuit connect high-frequency electric machines driving circuit, and the high-frequency electric machines driving circuit connects high frequency
Motor M1, the governor circuit are separately connected switch key S1, UV LED lamp drive circuit, high-frequency electric machines driving circuit, high frequency
Motor power circuit, lithium battery charging circuit, wireless charging receive circuit and indicator light circuit.
2. the control circuit of wireless charging type electric toothbrush according to claim 1, it is characterised in that: the master control electricity
Road includes main control chip U4, and the main control chip U4 has master control pin 1 to master control pin 14, the anode connection master of battery BT1
Pin 1 is controlled, master control pin is grounded by capacitor C10, and master control pin 2 connects high-frequency electric machines power circuit, before master control pin 3 passes through
Switch key S1 ground connection is stated, master control pin 4 connects wireless charging and receives circuit, and master control pin 5 connects lithium battery charging circuit, main
Control pin 8, master control pin 9, master control pin 10 and master control pin 1 are separately connected aforementioned indicator light circuit, and master control pin 11 connects
Aforementioned UV LED lamp drive circuit is connect, master control pin 13 connects aforementioned high-frequency electric machines driving circuit, and master control pin 11 is grounded.
3. the control circuit of wireless charging type electric toothbrush according to claim 2, it is characterised in that: the high-frequency electric machines
Driving circuit includes that resistance R13, the first N-type metal-oxide-semiconductor Q1, capacitor C9 and diode D4, aforementioned master control pin 13 connect the first N
The grid of the grid of type metal-oxide-semiconductor Q1, N-type metal-oxide-semiconductor is grounded by resistance R13, the source electrode ground connection of the first N-type metal-oxide-semiconductor Q1, the first N
One end of the drain electrode connection high-frequency electric machines M1 of type metal-oxide-semiconductor Q1, the other end of high-frequency electric machines M1 connect high-frequency electric machines power circuit, institute
The cathode of high-frequency electric machines power circuit connection diode D4 is stated, one end of the anode connection high-frequency electric machines M1 of diode D4 is described
Capacitor C9 is parallel to the both ends of high-frequency electric machines M1.
4. the control circuit of wireless charging type electric toothbrush according to claim 2, it is characterised in that: the UV LED light
Driving circuit includes the second N-type metal-oxide-semiconductor Q2, resistance R14, UV LED light D5, resistance R11, resistance R12 and resistance R15, aforementioned
Master control pin 11 connects the grid of the second N-type metal-oxide-semiconductor Q2, and the grid of the second N-type metal-oxide-semiconductor Q2 is grounded by resistance R14, the 2nd N
The source electrode of type metal-oxide-semiconductor Q2 is grounded, the cathode of the drain electrode connection UV LED light D5 of the second N-type metal-oxide-semiconductor Q2, the anode of UV LED light D5
By the anode of resistance R11 connection battery BT1, the anode of one end connection battery BT1 of resistance R12, the other end of resistance R12 connects
One end of connecting resistance R15, the cathode of the other end connection UV LED light D5 of resistance R15.
5. the control circuit of wireless charging type electric toothbrush according to claim 2, it is characterised in that: the overcurrent-overvoltage
Protection circuit includes fuse F1 and varistor RV1, and one end of fuse F1 connects the zero line of 90V to 120V alternating current
One end of the other end connection varistor RV1 of Ain1, fuse F1, the other end of varistor RV1 connect 90V to the city 120V
The zero line side Ain2 of electricity；
The current rectifying and wave filtering circuit includes capacitor C1, inductance L1, diode D1, diode D2, diode D3, diode D4, pole
Property capacitor C2, polar capacitor C3, resistance R2 and resistance R3, the capacitor C1 are parallel to the both ends of varistor RV1, inductance L1
First end connection varistor RV1 one end, inductance L1 third end connection varistor RV1 the other end, inductance L1's
Second end is separately connected the cathode of diode D1 and the anode of diode D2, and the 4th end of inductance L1 is separately connected diode D4's
The anode of cathode and diode D3, the anode of diode D1 and the anode of diode D4 are grounded jointly, the cathode of diode D2 and
The cathode of diode D3 connects the anode of polar capacitor C2 jointly, and the cathode of polar capacitor C2 connects the anode of polar capacitor C3,
The resistance R2 is parallel to the positive and negative electrode of polar capacitor C2, and the resistance R2 is grounded by resistance R3, the cathode of polar capacitor C3
Ground connection；
Unisolated switch power voltage step down circuit includes switching power source chip U5, polar capacitor C4, capacitor C51, polar capacitor C7, two
Pole pipe D5, diode D6, diode D7, zener diode D8 and inductance L2, the switching power source chip U5 draw with power supply
Foot 1 is grounded to power pins 8, power pins 1 and power pins 2 commonly through diode D7, and power pins 2 are connected by capacitor C5
Power pins 3 are connect, power pins 3 connect the anode of zener diode D8, the cathode connection diode D5's of zener diode D8
Anode, the cathode of diode D5 are separately connected the anode and power pins 4 of polar capacitor C4, and the cathode of polar capacitor C4 connects electricity
Source pin 2, for the anode of diode D5 by capacitor C51 connection power pins 2, one end of inductance L2 connects power pins 2, inductance
The other end of L2 is separately connected the anode and wireless charging transmit circuit of polar capacitor C7, and the cathode of polar capacitor C7 is grounded, pole
Property capacitor C7 cathode connecting diode D6 anode, the anode of the cathode connection diode D5 of diode D6.
6. the control circuit of wireless charging type electric toothbrush according to claim 5, it is characterised in that: the wireless charging
Transmit circuit includes wireless charging transmitting chip U6, inductance L3, capacitor C90, capacitor C60, capacitor C80, resistance R40, resistance R50
And resistance R60, the wireless charging transmitting chip U6 have transmitting pin 1 to transmitting pin 8, transmitting pin 1 passes through resistance
R50 connection emits pin 6, the other end connection transmitting pin 1 of inductance L2, and transmitting pin 1 is grounded by capacitor C90, and transmitting is drawn
Foot 3 emits pin 1 by inductance L3 connection, and the capacitor C60 is parallel to the both ends of inductance L3, and transmitting pin 4 is grounded, and transmitting is drawn
Foot 6 emits pin 8 by capacitor C80 connection, and transmitting pin 7 emits pin 8 by resistance R60 connection, and transmitting pin 8 passes through electricity
It hinders R40 connection and emits pin 1.
7. the control circuit of wireless charging type electric toothbrush according to claim 6, it is characterised in that: wireless charging receives
Circuit includes that wireless charging receives chip U2, diode D10, diode D20, capacitor C51, capacitor C61, resistance R20, resistance
R5, resistance R1, resistance R6, capacitor C10 and the inductance L21 for being matched with inductance L3, the wireless charging, which receives chip U2, to be had
Pin 1 is received to pin 8 is received, pin 2 is received and is separately connected the cathode of diode D10 and receives pin 7, diode D10's
Anode is grounded by inductance L21, the both ends the inductance L21 it is in parallel capacitor C51, receive pin 7 and be grounded by capacitor C61, connect
Spasm foot 4 is grounded, and is received pin 3 and is separately connected the cathode of diode D2 and one end of inductance L1, the other end of inductance L1 passes through
Capacitor C20 ground connection, the both ends capacitor C20 shunt capacitance C10 receive the other end that pin 5 passes through resistance R20 connection inductance L1, connect
Spasm foot 5 is grounded by resistance R5, and the other end series connection R6 of the other end of one end connection inductance L1 of resistance R1, resistance R1 connects
Ground, aforementioned master control pin 4 connect the other end of resistance R1, and the other end of inductance L1 connects lithium battery charging circuit.
8. the control circuit of wireless charging type electric toothbrush according to claim 7, it is characterised in that: the lithium battery fills
Circuit includes charging chip U1, resistance R30, resistance R70, resistance R41, capacitor C31 and capacitor C41, the charging chip
U1 has charging pins 1 to charging pins 5, and for charging pins 1 by resistance R30 connection master control pin 5, charging pins 3 pass through electricity
R70 connection master control pin 5 is hindered, charging pins 2 are grounded, battery BT1 connection charging pins 3, the positive and negative electrode parallel connection of battery BT1
The anode connection high-frequency electric machines power circuit of capacitor C31 and capacitor C41, battery BT1, charging pins 4 are grounded by resistance R41,
The other end of the connection of charging pins 5 inductance L1.
9. the control circuit of wireless charging type electric toothbrush according to claim 8, it is characterised in that: the high-frequency electric machines
Power circuit includes voltage stabilizing chip U3, inductance L31, capacitor C11, capacitor C7, capacitor C8, resistance R10 and resistance R8, described steady
Chip U3 is pressed to have pressure stabilizing pin 1 to pressure stabilizing pin 5, pressure stabilizing pin 1 passes through resistance R10 connection master control pin 2, pressure stabilizing pin 2
Ground connection, pressure stabilizing pin 3 are grounded by inductance L31 connection capacitor C11, capacitor C11 and pressure stabilizing pin 5 commonly through resistance R9, electricity
Resistance R8 is parallel to the both ends capacitor C11, and inductance L31 is grounded by capacitor C7, the both ends shunt capacitance C8 of capacitor C7, high-frequency electric machines
The other end passes through inductance L31 connection pressure stabilizing pin 3；Pressure stabilizing pin 4 connects charging pins 3.
10. the control circuit of wireless charging type electric toothbrush according to claim 2, it is characterised in that: the indicator light
Circuit includes that the first indicator light LED1, the second indicator light LED2 and third indicator light LED3, aforementioned master control pin 8 pass through resistance
The cathode of R16 the first indicator light of connection LED1, aforementioned master control pin 9 pass through the cathode of the second indicator light of resistance R17 connection LED2,
Aforementioned master control pin 10 passes through the cathode of resistance R18 connection third indicator light LED3, and the anode of the first indicator light LED1, second refer to
The anode of the anode and third indicator light LED3 that show lamp LED2 connects master control pin 1 jointly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721896364.8U CN208989209U (en) | 2017-12-29 | 2017-12-29 | Control circuit of wireless rechargeable electric toothbrush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721896364.8U CN208989209U (en) | 2017-12-29 | 2017-12-29 | Control circuit of wireless rechargeable electric toothbrush |
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| Publication Number | Publication Date |
|---|---|
| CN208989209U true CN208989209U (en) | 2019-06-18 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721896364.8U Expired - Fee Related CN208989209U (en) | 2017-12-29 | 2017-12-29 | Control circuit of wireless rechargeable electric toothbrush |
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| Country | Link |
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| CN (1) | CN208989209U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110913528A (en) * | 2019-12-27 | 2020-03-24 | 南昌思麦科技有限公司 | Toothbrush head LED lamp switching control circuit based on wireless power supply and control method |
-
2017
- 2017-12-29 CN CN201721896364.8U patent/CN208989209U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110913528A (en) * | 2019-12-27 | 2020-03-24 | 南昌思麦科技有限公司 | Toothbrush head LED lamp switching control circuit based on wireless power supply and control method |
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