CN208865033U - A kind of hand-held moisturizing instrument - Google Patents

Abstract

The utility model discloses a kind of hand-held moisturizing instrument, including master controller and the power module, inductive switch unit, skin detection unit, atomization unit, display screen and the LED indication unit that are electrically connected and are planned as a whole by it control work；Power module is used to provide the power supply of hand-held moisturizing instrument steady operation and/or charges for connecting with external mobile phone；Inductive switch unit includes several Hall detection sensors, several Hall detection sensors from main controller controls and with activity be installed in the magnet on hand-held moisturizing instrument and complete hand-held moisturizing instrument start-up and shut-down control；Skin detection unit is used to detect the humidity of skin；Atomization unit is driven by main controller controls for making water fogging as the atomizing piece resonant operational of fog；Display screen is used to show electric quantity of lithium battery, spray pattern and the skin humidity state of power module；LED indication unit is for lithium battery low battery police instruction and/or illuminates water tank.The hand-held moisturizing instrument of the utility model is easy to carry, atomizing effect is good, cruise duration is long and user experience is strong.

Description

A kind of hand-held moisturizing instrument

Technical field

The utility model relates to eyeshield equipment field, especially a kind of hand-held moisturizing instrument.

Background technique

Moisturizing instrument refers to handling liquid by atomization plant, to be atomized the instrument sprayed in the form of nano molecular, therefore " atomizer " can also be called.Moisturizing instrument can infiltrate into deep skin tissue quickly through pore and be absorbed, to reach deep Layer moisturizing and the effect for cleaning skin.

Moisturizing instrument on existing market is various informative, but existing moisturizing instrument its to make water fogging be by auto-excitation type Oscillating circuit come drive atomizing piece work, the volume of the moisturizing instrument so made is big, and atomizing effect is poor, inconvenient to carry.

In addition, traditional push button switch control that existing moisturizing instrument uses, the experience sense of moisturizing instrument are poor.Meanwhile it is existing There is moisturizing instrument in the market to have a single function, moisturizing instrument has no other function in addition to water supplement function.

Therefore, designing one kind moisturizing instrument multi-functional, easy to carry and strong user experience is that this field is urgently to be resolved Problem.

Utility model content

The technical issues of solution of the utility model is to provide a kind of hand for above-mentioned existing defect in the prior art Moisturizing instrument is held, this is hand-held, and moisturizing instrument is easy to carry, atomizing effect is good, cruise duration is long and user experience is strong.

To solve above-mentioned technical problem, the technical solution that the utility model is taken is as follows, a kind of hand-held moisturizing instrument, including master Controller and the power module, inductive switch unit, skin detection unit, atomization for being electrically connected and being planned as a whole by it control work Unit, display screen and LED indication unit；Wherein, the power module be used for provide hand-held moisturizing instrument steady operation power supply and/ Or it charges for connecting with external mobile phone；The inductive switch unit includes several Hall detection sensors, several Hall detection sensings Device from the main controller controls and with activity be installed in the magnet on hand-held moisturizing instrument and complete hand-held moisturizing instrument start-up and shut-down control； The skin detection unit is used to detect the humidity of skin；The atomization unit can drive use by the main controller controls In the atomizing piece resonant operational that the water mist in water tank is turned to fog；The display screen is used to show the lithium battery of power module Amount, spray pattern and skin humidity state；The LED indication unit is for lithium battery low battery police instruction and/or illuminates Water tank.

It is further described as to above-mentioned technical proposal:

In the above-mentioned technical solutions, the master controller is MG65PG5A08AY32 single-chip microcontroller.

In the above-mentioned technical solutions, the power module further includes IP5305 power management chip, RH7901 charge protocol Port controlling chip, HM6206 LDO chip, charging USB terminal and electric discharge USB terminal；The IP5305 power management chip with Charging USB terminal, electric discharge USB terminal, master controller, lithium battery and the electrical connection of RH7901 charge protocol port controlling chip, institute IP5305 power management chip is stated by the main controller controls, the DC power supply inputted from charging USB terminal is delivered to lithium Battery matching charges to lithium battery, or cooperates the control of RH7901 charge protocol port controlling chip by the output voltage of lithium battery It is exported along electric discharge USB terminal to connecting with external mobile phone after boosting；The HM6206 LDO chip connect and is used for the lithium battery It is+3.3V by the output voltage pressure stabilizing of lithium battery, cooperating the output voltage of the lithium battery to match is the master controller, induction Switch unit, skin detection unit, atomization unit, display screen and LED indication cell operation provide stable power supply.

In the above-mentioned technical solutions, several Hall detection sensors include YS1251 model Hall sensor and YS39E model Hall sensor；The connection of the YS1251 model Hall sensor/YS39E model Hall sensor base stage (b) I/O mouthfuls of the P1.2 data of the master controller or I/O mouthfuls of P0.4 data, the YS1251 model Hall sensor/YS39E model Collector (c) serial capacitance connection+3.3V of Hall sensor, the YS1251 model Hall sensor/YS39E model Hall Emitter (e) connection+3.3V of sensor；The master controller passes through I/O mouthfuls of its P1.2 data of detection or I/O mouthfuls of P0.4 data Low and high level and match the hand-held moisturizing instrument start-up and shut-down control of completion.

In the above-mentioned technical solutions, the atomization unit is the driving circuit of atomizing piece resonance, and the driving circuit includes The source electrode (S) of P3203 metal-oxide-semiconductor, the P3203 metal-oxide-semiconductor is connect with the centre tap of the negative electrode of atomizing piece and resonant inductance, It is electrically connected after its grid (G) series resistor with the PWM0 control port of master controller, drain electrode (D) is over the ground；The resonant inductance Two electrodes be separately connected the positive electrode of the lithium battery anode and atomizing piece；The master controller is exported along PWM0 control port Pwm signal makes the P3203 metal-oxide-semiconductor conduction and cut-off and the resonant inductance is cooperated to make atomizing piece resonance, and matching will be in water tank Water mist turn to fog.

In the above-mentioned technical solutions, the skin detection unit includes the RC differential circuit for connecting one electrode of sheet metal, should The resistance of RC differential circuit is electrically connected with the intermediate contact of capacitor with the anode of a clamp diode, the cathode of the clamp diode It is connect with I/O mouthfuls of P03 data of the master controller；Another electrode of the sheet metal is then controlled with the PWM1 of the master controller Port connection processed；The master controller passes through along PWM1 control port output pwm signal to the sheet metal, the master controller It detects the voltage formed at I/O mouthfuls of its P03 data after the RC differential circuit and clamp diode processing and has matched It is detected at the humidity of skin.

In the above-mentioned technical solutions, the LED indication unit includes referring to for the first of lithium battery low battery police instruction Show branch and the lighting sub loop for illuminating water tank；The first instruction branch and lighting sub loop include indication LED lamp, described The anode of indication LED lamp is electrically connected with+3.3V, and cathode concatenation periphery resistance with P3203 metal-oxide-semiconductor forms switching circuit Be docked to ground, the source electrode (S) of the P3203 metal-oxide-semiconductor connect with the cathode of indication LED lamp, after grid (G) series resistor and I/O mouthfuls of the P11 data of master controller or I/O mouthfuls of P07 data electrical connections, over the ground, the master controller is along P11 number for drain electrode (D) According to I/O mouthfuls or I/O mouthfuls of output low and high levels of P07 data, the P3203 metal-oxide-semiconductor is made conduction and cut-off and to make the instruction over the ground The cathode matching of LED light is connected over the ground and shines, and matching completes lithium battery low battery police instruction and/or illuminates water tank

In the above-mentioned technical solutions, the display screen is the liquid crystal display of SY902 model.

Compared with prior art, the utility model has the beneficial effects that: the hand-held moisturizing instrument of the utility model uses lithium Battery power supply, cruise duration is long, while moisturizing instrument is integrated with charge function, also just integrates charger baby and moisturizing instrument, one two With；The moisturizing instrument of the utility model uses hall sensing switch control moisturizing instrument start and stop, eliminates traditional push button switch, makes The experience sense for obtaining moisturizing instrument rises；The oscillating circuit of the moisturizing instrument atomization of the utility model using separated exciting oscillating circuit, It pushes matched circuit to make atomizing piece resonance by the algorithm output pwm signal of master controller, and then atomizes water into fog, mist Change it is high-efficient, meanwhile, the moisturizing instrument structure of the utility model simplifies, is easy to carry, atomizing effect is good and user experience is strong.

Detailed description of the invention

Fig. 1 is the block diagram that the utility model holds moisturizing instrument；

Fig. 2 is the circuit diagram that the utility model holds moisturizing instrument.

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawing.

With reference to attached drawing 1-2, the present embodiment is mainly said by the composition and control principle that illustrate the control module of moisturizing instrument The bright moisturizing instrument working principle.The hand-held moisturizing instrument of the present embodiment includes master controller U3, power module 001, inductive switch list Member 002, skin detection unit 003, atomization unit 004, display screen 005 and LED indication unit 006, the inductive switch unit 002, skin detection unit 003, atomization unit 004, display screen 005 and LED indication unit 006 with the power module 001 It is electrically connected with master controller U3, and the master controller U3 controls the power module 001, inductive switch unit for planning as a whole 002, skin detection unit 003, atomization unit 004, display screen 005 and LED indication unit 006 work；In the present embodiment,

The master controller U3 is MG65PG5A08AY32 single-chip microcontroller；

The display screen 005 is that the liquid crystal display of SY902 model (illustrates only in circuit diagram and connects the liquid crystal The connectivity port LCD1 of display screen), and display screen 005 is used to show electric quantity of lithium battery, spray pattern and the skin of power module 001 Humidity state；

The power module 001 is used to provide the power supply of hand-held moisturizing instrument steady operation and/or charges for connecting with external mobile phone；

The inductive switch unit 002 includes several Hall detection sensors, and several Hall detection sensors are by institute State the hand-held moisturizing instrument of magnet (attached drawing is not shown) completion that master controller U3 is controlled and activity is cooperated to be installed on hand-held moisturizing instrument Start-up and shut-down control；

The skin detection unit 003 is used to detect the humidity of skin, and skin is detected list by the master controller U3 After the skin humidity of 003 detection of member is shown on the display screen 005, is manually controlled by user or set by master controller U3 Determine and controls atomization unit 004 and match the atomization work for carrying out corresponding atomization quantity；

The atomization unit 004 can be controlled by the master controller U3 and be driven for the water mist in water tank to be turned to fog Atomizing piece resonant operational, in the present embodiment, the concussion of atomizing piece uses separated exciting oscillating circuit, passes through master controller U3's Algorithm output pwm signal pushes matched circuit to make atomizing piece resonance, and then atomizes water into fog；

And the LED indication unit 006 then for lithium battery low battery police instruction and/or illuminates water tank, in practice, when When electric quantity of lithium battery is low, the red LED of LED indication units match can be lighted, matching low battery alarm；When atomizing piece is in work When work, the blue led of LED indication units match can be lighted, it can be observed that the case where water tank.

With reference to attached drawing 2, in the present embodiment, the power module 001 further include IP5305 power management chip U1, RH7901 charge protocol port controlling chip U2, HM6206 LDO chip VR1, charging USB terminal USB1 and electric discharge USB terminal USB2；The IP5305 power management chip U2 and charging USB terminal USB1, electric discharge USB terminal USB2, master controller U3, lithium Battery and RH7901 charge protocol port controlling chip U2 electrical connection, the IP5305 power management chip U1 is by the main control The external dc 5V inputted from charging USB terminal USB1 is delivered to lithium battery matching and charged to lithium battery, or matched by device U3 control Electric discharge USB terminal USB2 in edge after the output voltage of lithium battery is boosted in the control of conjunction RH7901 charge protocol port controlling chip U2 Output is to connecting with external mobile phone, and in practice, in the charge state, IP5305 power management chip U1 is by the direct current 5V power supply processing of input After load on lithium battery and charge to it, and in the discharged condition, TP5305 power management chip U1 by lithium battery power supply simultaneously Matched boost voltage+5V is exported along its booster output port, then is controlled by RH7901 charge protocol port controlling chip U2 And detect electric discharge USB terminal USB2 access mobile phone/terminal whether be matched mobile phone/terminal, when be verified as matched mobile phone/ It is then corresponded to when terminal and boost voltage+5V is accessed into corresponding mobile phone/terminal, matching charges to mobile phone or terminal；It needs Bright, the work start and stop of RH7901 charge protocol port controlling chip U2 are from passing through periphery electricity with P3203 metal-oxide-semiconductor Q8 Resistance composition switching circuit and master controller U3 match control and work, that is, master controller U3 along the output of its port P13 it is high/ Low level makes P3203 metal-oxide-semiconductor Q8 conducting pull down to bottom from by the port GND of RH7901 charge protocol port controlling chip U2, To match work, and master controller U3 is only when inserting mobile phone or terminal on detecting electric discharge USB terminal USB2 Matched high/low level just is exported from its port P13, meanwhile, start work in RH7901 charge protocol port controlling chip U2 Afterwards, the mobile phone being inserted on electric discharge USB terminal USB2 is verified by the RH7901 charge protocol port controlling chip U2 or terminal is It is no to meet corresponding USB charge protocol, only in the case where meeting corresponding agreement, RH7901 charge protocol port controlling core Piece U2 can just determine that it is matched equipment, and the voltage exported on the USB terminal USB2 that discharges is used for filling for mobile phone/terminal Electricity；And the HM6206 LDO chip VR1 is connect with the lithium battery and is used for the output voltage VBAT pressure stabilizing of lithium battery For+3.3V, cooperating the output voltage VBAT of the lithium battery to match is the master controller U3, inductive switch unit 002, skin Detection unit 003, atomization unit 004, display screen 005 and the work of LED indication unit 006 provide stable power supply, moisturizing instrument work During work, master controller U3, inductive switch unit 002, skin detection unit 003, atomization unit 004,005 and of display screen LED indication unit 006 returns needs and uses output voltage VBAT and+3.3V voltage.

With reference to attached drawing 2, in the present embodiment, several Hall detection sensors include YS1251 model Hall sensor (Q3, Q5) and YS39E model Hall sensor (Q9)；Each Hall sensor (Q3, Q5, Q9) has matched driving circuit, On circuit connecting relation, the YS1251 model Hall sensor (Q3, Q5)/YS39E model Hall sensor (Q9) base Pole (b) connect the master controller I/O mouthfuls of P1.2 data or I/O mouthfuls of P0.4 data, the specially described YS1251 model Hall The base stage (b) of sensor (Q3) connects the P1.2 data I/O of the master controller, the YS1251 model Hall sensor (Q5)/YS39E model Hall sensor (Q9) base stage (b) connects I/O mouthfuls of P0.4 data of the master controller, and described YS1251 model Hall sensor (Q3, Q5)/YS39E model Hall sensor (Q9) collector (c) serial capacitance (C10, C21, C14) connection+3.3V, the YS1251 model Hall sensor (Q3, Q5)/YS39E model Hall sensor (Q9) hair Emitter-base bandgap grading (e) connection+3.3V；The master controller U3 passes through I/O mouthfuls of its P1.2 data of detection or I/O mouthfuls of P0.4 data of height electricity It puts down and matches and complete hand-held moisturizing instrument start-up and shut-down control, that is, when master controller U3 detects I/O mouthfuls of P1.2 data or P0.4 number According to I/O mouthfuls of corresponding high/low level, then show that magnet is located at the position of the hand-held moisturizing instrument of statement start and stop of setting, thus master control Device U3 processed is corresponding and start and stop moisturizing instrument carries out atomization work and moisturizing.

With reference to attached drawing 2, in the present embodiment, the atomization unit 004 is the driving circuit of atomizing piece resonance, the driving Circuit includes P3203 metal-oxide-semiconductor Q2, the source electrode (S) of the P3203 metal-oxide-semiconductor Q2 and the negative electrode and resonant inductance L2 of atomizing piece In the present embodiment, centre tap connection (resonant inductance L2 be 6X8 triangle I-shaped inductance), grid (G) series resistor R6 It is electrically connected afterwards with the PWM0 control port of master controller U3, drain electrode (D) is over the ground；Two electrodes of the resonant inductance L2 connect respectively Connect the lithium battery anode (VBAT) and atomizing piece (in circuit diagram, the connection terminal of display circuit atomizing piece) just Electrode；The master controller U3 makes the P3203 metal-oxide-semiconductor Q2 conduction and cut-off and matches along PWM0 control port output pwm signal Closing the resonant inductance L2 makes atomizing piece resonance, and the water mist in water tank is turned to fog by matching.

With reference to attached drawing 2, in the present embodiment, the skin detection unit 003 includes the RC of connection one electrode of sheet metal micro- The resistance R12 of parallel circuit, the RC differential circuit is electrically connected with the intermediate contact of capacitor C12 with the anode of a clamp diode D2, I/O mouthfuls of P03 data of the cathode of clamp diode D2 and the master controller U3 are connect；Another electrode of the sheet metal is then It is connect with the PWM1 control port of the master controller U3；The master controller U3 along PWM1 control port output pwm signal extremely The sheet metal, the master controller U3 is by detection in it after the RC differential circuit and clamp diode D2 processing At I/O mouthfuls of P03 data formed voltage and match complete skin humidity detection；In practice, master controller U3 is controlled along PWM1 After port output pwm signal to the sheet metal processed, the RC differential circuit response being connected on another electrode of sheet metal, in resistance Output voltage UO is constituted at R12, in output voltage UO by the clamper of clamp diode D2 and in its cathode and P03 data I/O Mouth forms matched voltage, and master controller U3 is acquired the voltage by its internal ADC and matched and obtain capacitance on sheet metal And the humidity for obtaining sheet metal is matched, and the sheet metal is and skin contact, so, the dry and wet of matching detection to skin Degree.

With reference to attached drawing 2, in the present embodiment, the LED indication unit 006 includes being used for lithium battery low battery police instruction The the first instruction branch and lighting sub loop for illuminating water tank；The first instruction branch and lighting sub loop include instruction (attached drawing shows the connection terminal (LED) of corresponding indication LED lamp to LED light, and the indication LED of the first instruction branch is red LED, the indication LED of lighting sub loop are blue led), the matched current-limiting resistance of anode series of the indication LED lamp (R16, R15 it) is electrically connected with+3.3V, cathode concatenation periphery resistance (R17, R18) with P3203 metal-oxide-semiconductor (Q6, Q7) forms switch Circuit is docked to ground, and the source electrode (S) of the P3203 metal-oxide-semiconductor (Q6, Q7) is connect with the cathode of indication LED lamp, grid (G) string Connecting resistance (R17, R18) is electrically connected with I/O mouthfuls of the P11 data of master controller U3 or I/O mouthfuls of P07 data afterwards, and drain electrode (D) is right Ground, the master controller U3 make the P3203 metal-oxide-semiconductor along I/O mouthfuls of output low and high levels of I/O mouthfuls of P11 data or P07 data (Q6, Q7) over the ground conduction and cut-off and make the indication LED lamp cathode match be connected and shine over the ground, matching completion lithium battery Low battery police instruction and/or illuminate water tank；In practice, when electric quantity of lithium battery is low, the red of LED indication units match LED can be lighted, matching low battery alarm；When atomizing piece at work, the blue led of LED indication units match can be lighted, It can be observed that the case where water tank.

The hand-held moisturizing instrument of the present embodiment uses lithium battery power supply, and cruise duration is long, while moisturizing instrument is integrated with charging function Can, also just charger baby and moisturizing instrument are integrated, one is dual-purpose；The moisturizing instrument of the present embodiment uses the moisturizing of hall sensing switch control Instrument start and stop eliminate traditional push button switch so that the experience sense of moisturizing instrument rises；The shake of the moisturizing instrument atomization of the present embodiment Circuit is swung using separated exciting oscillating circuit, pushes matched circuit to make mist by the algorithm output pwm signal of master controller To change piece resonance, and then atomizes water into fog, nebulization efficiency is high, meanwhile, the moisturizing instrument structure of the present embodiment simplifies, carrying side Just, atomizing effect is good and user experience is strong.

Do not limit the technical scope of the present invention above, it is all according to the utility model technical spirit to On embodiment made by any modification, equivalent variations and modification, in the range of still falling within the technical solution of the utility model.

Claims (8)

1. a kind of hand-held moisturizing instrument, it is characterised in that, including master controller and it is electrically connected and control work is planned as a whole by it Power module, inductive switch unit, skin detection unit, atomization unit, display screen and LED indication unit；Wherein, the power supply Module is used to provide the power supply of hand-held moisturizing instrument steady operation and/or charges for connecting with external mobile phone；The inductive switch unit includes Several Hall detection sensors, several Hall detection sensors from the main controller controls and with activity be installed in hand It holds the magnet on moisturizing instrument and completes hand-held moisturizing instrument start-up and shut-down control；The skin detection unit is used to detect the humidity of skin； The atomization unit can drive the atomizing piece resonance for the water mist in water tank to be turned to fog by the main controller controls Work；The display screen is used to show electric quantity of lithium battery, spray pattern and the skin humidity state of power module；The LED Indicating unit is for lithium battery low battery police instruction and/or illuminates water tank.

2. a kind of hand-held moisturizing instrument according to claim 1, it is characterised in that, the master controller is MG65PG5A08AY32 single-chip microcontroller.

3. a kind of hand-held moisturizing instrument according to claim 1, it is characterised in that, the power module further includes IP5305 electricity Source control chip, RH7901 charge protocol port controlling chip, HM6206LDO chip, charging USB terminal and electric discharge USB terminal； The IP5305 power management chip and charging USB terminal, electric discharge USB terminal, master controller, lithium battery and RH7901 charging are assisted The electrical connection of port controlling chip is discussed, the IP5305 power management chip, will be from charging USB terminal by the main controller controls The DC power supply of input is delivered to lithium battery matching and charges to lithium battery, or cooperation RH7901 charge protocol port controlling chip Control is exported along electric discharge USB terminal to connecting with external mobile phone after the output voltage of lithium battery boosts；The HM6206LDO chip and institute It states lithium battery to connect and be used to the output voltage pressure stabilizing of lithium battery be+3.3V, cooperates the output voltage of the lithium battery With being mentioned for the master controller, inductive switch unit, skin detection unit, atomization unit, display screen and LED indication cell operation For stable power supply.

4. a kind of hand-held moisturizing instrument according to claim 3, it is characterised in that, several Hall detection sensors include YS1251 model Hall sensor and YS39E model Hall sensor；The YS1251 model Hall sensor/YS39E model The base stage (b) of Hall sensor connect the master controller I/O mouthfuls of P1.2 data or I/O mouthfuls of P0.4 data, the YS1251 Model Hall sensor/YS39E model Hall sensor collector (c) serial capacitance connection+3.3V, the YS1251 model Hall sensor/YS39E model Hall sensor emitter (e) connection+3.3V；The master controller is by detecting its P1.2 I/O mouthfuls of data or I/O mouthfuls of P0.4 data of low and high level and match the hand-held moisturizing instrument start-up and shut-down control of completion.

5. a kind of hand-held moisturizing instrument according to claim 3, it is characterised in that, the atomization unit is atomizing piece resonance Driving circuit, the driving circuit include P3203MOS pipe, the source electrode (S) of the P3203MOS pipe and the negative electrode of atomizing piece and The centre tap of resonant inductance connects, and is electrically connected after grid (G) series resistor with the PWM0 control port of master controller, leaks Pole (D) is over the ground；Two electrodes of the resonant inductance are separately connected the positive electrode of the lithium battery anode and atomizing piece；The master control Device processed makes the P3203MOS pipe conduction and cut-off and the resonant inductance is cooperated to make mist along PWM0 control port output pwm signal Change piece resonance, the water mist in water tank is turned to fog by matching.

6. a kind of hand-held moisturizing instrument according to claim 3, it is characterised in that, the skin detection unit includes connection gold Belong to the RC differential circuit of one electrode of piece, the anode of the resistance of the RC differential circuit and the intermediate contact of capacitor and a clamp diode I/O mouthfuls of P03 data of electrical connection, the cathode of the clamp diode and the master controller are connect；Another electricity of the sheet metal Pole is then connect with the PWM1 control port of the master controller；The master controller along PWM1 control port output pwm signal extremely The sheet metal, the master controller is by detection in its P03 number after the RC differential circuit and clamp diode processing The humidity detection for completing skin is matched according to the voltage formed at I/O mouthfuls.

7. a kind of hand-held moisturizing instrument according to claim 3, it is characterised in that, the LED indication unit includes being used for lithium First instruction branch of battery low-electricity quantity police instruction and the lighting sub loop for illuminating water tank；The first instruction branch and photograph Bright branch includes indication LED lamp, and the anode of the indication LED lamp is electrically connected with+3.3V, and cathode concatenation is managed by P3203MOS Cooperation periphery resistance composition switching circuit is docked to ground, and the source electrode (S) of the P3203MOS pipe and the cathode of indication LED lamp connect It connects, is electrically connected after grid (G) series resistor with I/O mouthfuls of the P11 data of master controller or I/O mouthfuls of P07 data, drained (D) Over the ground, the master controller makes the P3203MOS pipe pair along I/O mouthfuls of output low and high levels of I/O mouthfuls of P11 data or P07 data Ground conduction and cut-off simultaneously makes the cathode matching of the indication LED lamp be connected and shine over the ground, and the alarm of lithium battery low battery is completed in matching Indicate and/or illuminate water tank.

8. a kind of hand-held moisturizing instrument according to claim 1, it is characterised in that, the display screen is the liquid of SY902 model Crystal display screen.