CN209030129U - A kind of frangrance spraying device control circuit - Google Patents

Abstract

The utility model provides a kind of frangrance spraying device control circuit, it includes battery BT1, master controller chip UPT9852V50, boost inductance L1, motor rotate driving circuit and motor MG1, the anode of battery BT1 is connected by boost inductance L1 with the pin LX of master controller chip UPT9852V50, the cathode of battery BT1 is connected with the GND foot of master controller chip UPT9852V50, and motor drive circuit is connected between master controller chip UPT9852V50 and motor MG1.The frangrance spraying device control circuit of the utility model can support single battery power and it is at low cost.

Description

A kind of frangrance spraying device control circuit

Technical field

The utility model relates to frangrance spraying device fields, and in particular to a kind of frangrance spraying device control circuit.

Background technique

Automatic air deodorisation sprayer is that one kind is automatically controlled by circuit, by motor internal machine driving, is allowed in a manner of clocked flip Flavouring agent (tank) eruption is to be exclusively used in eliminating the various peculiar smell in air, and can sterilize, constant to keep the small of room air faint scent Type electronic apparatus.Its structure and installation are generally wall hanging form, and can paste on the wall for be hung on public place or toilet etc. makes With.Automatic air deodorisation sprayer majority is the discrete component or standard ASIC directly powered using the dry pond of two or three sections currently on the market The control circuit of special chip (ASIC, Application Specific Integrated Circuit) composition.

Automatic air deodorisation sprayer currently on the market is all to do the discrete component or mark that pond directly powers using two sections or three sections The driving circuit of quasi- ASIC special chip (ASIC, Application Specific Integrated Circuit) composition.It deposits In following problem:

As shown in Figure 1, two sections or the direct power supply structure automatic air deodorisation sprayer product of three batteries, start electromechanics structure The moment of transmission pressing flavouring agent can drag down electricity since motor instantaneous large-current starts the influence to cell voltage ripple moment Cell voltage causes when battery capacity is relatively low, and the starting of motor instantaneous large-current can be by the voltage pull-down of battery in control circuit Resetting voltage makes entire control circuit momentary reset, to affect fragrant effect and cannot completely consume battery capacity Finish.

In addition, two sections or the direct power supply structure automatic air deodorisation sprayer product of three batteries, battery compartment account for the biggish space of product, The surface structure for influencing product is unfavorable for the development of product miniaturization.Two sections or the direct power supply structure of three batteries spray automatically Fragrant machine product, the battery of same device consumption more more piece, unfavorable use cost and environmental protection.Using discrete device or standard The frangrance spraying device circuit of asic chip influences whole component cost, the layout of pcb board of scheme since peripheral circuit is more complex And the difficulty of production and processing.And using customization ASIC special circuit, mode capabilities are fixed, can not be changed, different product application Not flexible, preparation cycle is long, and change function needs to redesign chip circuit, at high cost.

Utility model content

The purpose of the utility model is to provide it is a kind of can be by frangrance spraying device control circuit that single battery is powered.

The utility model is to solve technical solution used by its technical problem:

A kind of frangrance spraying device control circuit comprising battery BT1, master controller chip UPT9852V50, boost inductance L1, horse Up to rotate driving circuit and motor MG1, the anode of battery BT1 passes through boost inductance L1's and master controller chip UPT9852V50 Pin LX is connected, and the cathode of battery BT1 is connected with the GND foot of master controller chip UPT9852V50, motor drive circuit It is connected between master controller chip UPT9852V50 and motor MG1.

In the utility model embodiment, the frangrance spraying device control circuit further includes filter capacitor C1, C2, C3, filter capacitor C1, C2 are parallel between the VOUT foot and GND foot of master controller chip UPT9852V50, and filter capacitor C3 is connected to battery BAT1 Anode and cathode it is direct.

In the utility model embodiment, the VOUT foot output voltage of master controller chip UPT9852V50 is 5V.

In the utility model embodiment, the frangrance spraying device control circuit further include four gear switch S2, four gear switch S2 1 with 2 feet connect the cathode of battery BT1, the SW1 foot of the 3 feet connection master controller chip UPT9852V50 of four gear switch S2, and fourth gear is opened The SW2 foot of the 4 feet connection master controller chip UPT9852V50 of S2 is closed, the 5 of four gear switch S2 connect master controller chip with 6 feet The VOUT foot of UPT9852V50.

In the utility model embodiment, four gear switch S2 are four gear switch of single four gear switch of hilted broadsword or double double-pole.

In the utility model embodiment, the frangrance spraying device control circuit further includes key S1 and resistance R1, key S1 connection Between the BOOST foot and VOUT foot of master controller chip UPT9852V50, resistance R1 is connected to cathode and the master control of battery BT1 Between the BOOST foot of device chip UPT9852V50 processed.

In the utility model embodiment, battery BT1 uses 1.5V dry cell power supply.

In the utility model embodiment, master controller chip UPT9852V50 be internally integrated single-chip microcontroller kernel and respectively with Program storage that single-chip microcontroller kernel is connected, static store, low-voltage reset circuit, watchdog circuit, timer, Internal oscillator circuit, port control circuit, synchronous voltage booster circuit and electric power management circuit.

In the utility model embodiment, master controller chip UPT9852V50 is encapsulated using SOP8 foot position.

In the utility model embodiment, motor rotate driving circuit be rotate forward push driving single MOS drive circuit or Positive and negative rotation with rebound control pushes the H-bridge drive circuit of the four metal-oxide-semiconductors composition of driving.

Compared with prior art, the frangrance spraying device control circuit of the utility model has the advantages that

High efficiency synchronous pressure build-up technique built in master controller chip UPT9852V50, supply voltage can be opened with ultralow pressure (1.0V) It starts building to make, power without multiple batteries, single-unit dry cell power supply can be used, greatly reduce the battery cost that product uses, Be conducive to environmental protection, while being conducive to the development of frangrance spraying device miniaturization；Master controller chip UPT9852V50 can be by core Piece builtin voltage stablizes the value (being typically 5.0, boost voltage can be 3.0V~5.0V by default setting) in setting, not by Load and the influence of supply voltage, can utmostly exhaust battery capacity, reduce energy waste；Master controller chip The single chip solution that UPT9852V50 boosts by high efficiency synchronous built in use, has at low cost, peripheral few, and wiring is easy, convenient The features such as production.

Detailed description of the invention

Fig. 1 is the waveform diagram of the cell voltage of the frangrance spraying device of the prior art.

Fig. 2 is the structural schematic diagram for the frangrance spraying device control circuit that the single battery of the utility model embodiment supplies.

Fig. 3 is a kind of circuit diagram of the motor rotate driving circuit in Fig. 2.

Fig. 4 is another circuit diagram of the motor rotate driving circuit in Fig. 2.

Fig. 5 is the inner bay composition of the master controller chip UPT9852V50 in Fig. 2.

Specific embodiment

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain The utility model is not used to limit the utility model.

The realization of the utility model is described in detail below in conjunction with specific embodiment.

As shown in Fig. 2, the utility model embodiment provides a kind of frangrance spraying device control circuit comprising battery BT1, main control Device chip UPT9852V50, boost inductance L1, filter capacitor C1, C2, C3, four gear switch S2, key S1, resistance R1, motor turn Dynamic driving circuit and motor MG1.It should be noted that battery BT1 uses 1.5V dry cell power supply, output voltage in Fig. 2 Cathode for 1.5V, battery BT1 is indicated using ground connection.It is the anode for meeting battery BT1 that 1.5V level is connect in Fig. 2, ground connection As connect the cathode of battery.The VOUT foot output voltage of master controller chip UPT9852V50 is 5V, connect in Fig. 2 5V level i.e. For the VOUT foot for meeting master controller chip UPT9852V50.

The anode of battery BT1 is connected by boost inductance L1 with the pin LX of master controller chip UPT9852V50, electricity The cathode of pond BT1 is connected with the GND foot of master controller chip UPT9852V50, master controller chip UPT9852V50's MOTO1 foot connects the M1 foot of motor rotate driving circuit, the MOTO2 foot connection motor rotation of master controller chip UPT9852V50 The M2 foot of driving circuit, the power supply M_VDD foot of motor rotate driving circuit are connect with the anode of battery BAT1, and motor MG1 is just Pole connects the M+ foot of motor rotate driving circuit, and the cathode of motor MG1 connects the M- foot of motor rotate driving circuit, motor drive circuit Control signal drive motor rotation for being exported according to master controller chip UPT9852V50.

Filter capacitor C1, C2 are parallel between the VOUT foot and GND foot of master controller chip UPT9852V50, filter capacitor The positive and cathode that C3 is connected to battery BAT1 is direct.The 1 of four gear switch S2 connect the cathode of battery BT1, four gear switch with 2 feet The SW1 foot of the 3 feet connection master controller chip UPT9852V50 of S2,4 feet of four gear switch S2 connect master controller chip The SW2 foot of UPT9852V50, the 5 of four gear switch S2 connect the VOUT foot of master controller chip UPT9852V50 with 6 feet.Key S1 Be connected between the BOOST foot and VOUT foot of master controller chip UPT9852V50, resistance R1 be connected to battery BT1 cathode and Between the BOOST foot of master controller chip UPT9852V50.

In the utility model embodiment, four gear switch S2 can be single four gear switch of hilted broadsword, or double double-pole Four gear switch.

As shown in figure 3, the motor rotate driving circuit can push single MOS drive circuit of driving for only rotating forward (the MOTO1 foot control system that need to only meet master controller chip UPT9852V50, which rotates forward, pushes flavouring agent, and MOTO2 foot is vacant).Such as Fig. 4 institute Show, the motor rotate driving circuit may be that the H bridge for the four metal-oxide-semiconductors composition that the positive and negative rotation with rebound control pushes driving drives (the MOTO1 foot control system of master controller chip UPT9852V50 rotates forward pushes flavouring agent, master controller chip to dynamic circuit The MOTO1 foot control system reversion control transmission mechanism rebound reset of UPT9852V50).

As shown in figure 5, master controller chip UPT9852V50 is encapsulated using SOP8 foot position in the utility model embodiment, It has been internally integrated single-chip microcontroller kernel and the program storage being connected respectively with single-chip microcontroller kernel, static store, low Voltage reset circuitry, watchdog circuit, timer, internal oscillator circuit, port control circuit, synchronous voltage booster circuit and power supply pipe Manage circuit.

The working principle of above-mentioned automatic air deodorisation sprayer control circuit is as follows:

Integrated synchronous booster circuit inside Master control chip UPT9852V50, the voltage that battery BT1 is powered combine electricity Sense L1 is raised to stable 5.0V voltage (representative value is that 5.0V boost voltage can be 3.0V~5.0V by default setting), is boosted Output voltage afterwards works for chip interior logic and peripheral components.Synchronous voltage booster circuit static state power consumption < 100uA.Pass through software The output level of Separation control MOTO1 foot and MOT2 foot controls drive motor rotation control circuit, realizes with gear selection Low-power consumption automatic air deodorisation sprayer circuit arrangement: the reverse signal of rear MOTO2 output 200MS is first powered on, to control driver Structure rebound reset is convenient for changing fragrant agent tank.Often press a S1 key, the primary fragrant rotation process of frangrance spraying device work (test is used). Normal condition master controller chip passes through the upper pull down resistor inspection inside switch controller with the 125mS low-power consumption sleep awakening time The position for surveying four gear switch, when detecting that four way switch is in OFF shutdown shelves, MOTO1 and the MOTO2 foot of master controller chip Low level is exported, motor transmission is in the quiet state not turned.When master controller chip detects that S2 is in MIN (minimum Shelves), MED (middle gear), this three intensity shelves of MAX (maximum) when, MOTO1 and MOT2 by setting interval output control horse Up to the positive and negative rotation of rotate driving circuit, to realize the pushing and rebound control to flavouring agent (tank).To realize the spray of three intensity The control of pastil amount.When wherein the typical spacing time of MIN deep low gear is that spray in 36 minutes is primary, MED middle gear typical spacing Between it is primary for spray in 18 minutes, the typical spacing time of MAX maximum is that spray in 9 minutes is primary.Every spray one-off, MOTO1 with MOTO2 output level timing are as follows: the rotating forward high-level control signal of first MOTO1 output 600MS, then export the low level of 200MS The anti-dead time of positive and negative rotation, then MOTO2 exports the high electric control signal of reversion of 200MS again.The above third gear interval time and horse The time driven up to positive and negative rotation is representative value, can be changed by actual demand by software flexible.It can be with by software cooperation It is as the positive and negative rotation for spraying number adjustment motor sprays the power savings algorithms of time and LED flashes work instruction for extending function Function etc..

In conclusion the frangrance spraying device control circuit of the utility model has the advantages that

High efficiency synchronous pressure build-up technique built in master controller chip UPT9852V50, supply voltage can be opened with ultralow pressure (1.0V) It starts building to make, power without multiple batteries, single-unit dry cell power supply can be used, greatly reduce the battery cost that product uses, Be conducive to environmental protection, while being conducive to the development of frangrance spraying device miniaturization；Master controller chip UPT9852V50 can be by core Piece builtin voltage stablizes the value (being typically 5.0, boost voltage can be 3.0V~5.0V by default setting) in setting, not by Load and the influence of supply voltage, can utmostly exhaust battery capacity, reduce energy waste；Master controller chip UPT9852V50 is upgraded to 5.0V because using built-in pressure build-up technique, by 1.5V voltage, and motor driving port voltage is similarly 5.0V Level, can utmostly reduce the internal resistance of the metal-oxide-semiconductor of motor drive circuit, and enhancing sprays dynamics；Master controller chip Because using MCU core architecture, function detail and parameter can be changed UPT9852V50 by software flexible, pass through dedicated burning Device has in the OTP-ROM of burning program to master controller flexible expansion, adapts to different infrastructure products, while reducing standby The goods period；The single chip solution that master controller chip UPT9852V50 boosts by high efficiency synchronous built in use has at low cost, outer It encloses less, the features such as being routed and be easy, facilitate production.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model Protection scope within.

Claims (10)

1. a kind of frangrance spraying device control circuit, which is characterized in that including battery BT1, master controller chip UPT9852V50, boosting electricity The anode for feeling L1, motor rotate driving circuit and motor MG1, battery BT1 passes through boost inductance L1 and master controller chip The pin LX of UPT9852V50 is connected, and the cathode of battery BT1 is connected with the GND foot of master controller chip UPT9852V50, Motor drive circuit is connected between master controller chip UPT9852V50 and motor MG1.

2. frangrance spraying device control circuit as described in claim 1, which is characterized in that it further include filter capacitor C1, C2, C3, filtering Capacitor C1, C2 are parallel between the VOUT foot and GND foot of master controller chip UPT9852V50, and filter capacitor C3 is connected to battery The anode and cathode of BAT1 is direct.

3. frangrance spraying device control circuit as claimed in claim 2, which is characterized in that the VOUT of master controller chip UPT9852V50 Foot output voltage is 5V.

4. frangrance spraying device control circuit as claimed in claim 3, which is characterized in that further include four gear switch S2, four gear switch S2 1 cathode for connecting battery BT1 with 2 feet, the SW1 foot of the 3 feet connection master controller chip UPT9852V50 of four gear switch S2, four The SW2 foot of the 4 feet connection master controller chip UPT9852V50 of gear switch S2, the 5 of four gear switch S2 connect master controller with 6 feet The VOUT foot of chip UPT9852V50.

5. frangrance spraying device control circuit as claimed in claim 4, which is characterized in that four gear switch S2 are single four gear switch of hilted broadsword Or double four gear switch of double-pole.

6. frangrance spraying device control circuit as claimed in claim 5, which is characterized in that further include key S1 and resistance R1, key S1 Be connected between the BOOST foot and VOUT foot of master controller chip UPT9852V50, resistance R1 be connected to battery BT1 cathode and Between the BOOST foot of master controller chip UPT9852V50.

7. frangrance spraying device control circuit as described in claim 1, which is characterized in that battery BT1 uses 1.5V dry cell power supply.

8. frangrance spraying device control circuit as described in claim 1, which is characterized in that collection inside master controller chip UPT9852V50 Program storage, the static store, low-voltage reset being connected at single-chip microcontroller kernel and respectively with single-chip microcontroller kernel Circuit, watchdog circuit, timer, internal oscillator circuit, port control circuit, synchronous voltage booster circuit and electric power management circuit.

9. frangrance spraying device control circuit as claimed in claim 8, which is characterized in that master controller chip UPT9852V50 is used The encapsulation of SOP8 foot position.

10. frangrance spraying device control circuit as described in claim 1, which is characterized in that motor rotate driving circuit is to rotate forward to push The H-bridge drive circuit of single MOS drive circuit of driving or the four metal-oxide-semiconductors composition of the positive and negative rotation pushing driving with rebound control.