CN208632155U - A kind of purifier control system - Google Patents

Abstract

The utility model discloses a kind of purifier control systems, MCU controller is electrically connected with water flow detection module, DC-DC module, display module, signal driver module, DC-DC module input terminal connects AC-DC module, DC-DC module output end is electrically connected with MCU controller, water flow detection module, signal driver module and high-frequency inversion boost module, and signal driver module output end is connect with high-frequency inversion boost module.The control system of the utility model has signal to come when flow module, the biggish pwm signal of MCU output duty cycle, so that bactericidal lamp output ultraviolet radiation intensity is become larger, it is sufficient to kill the bacterium in purifier.It is on the contrary, the lesser pwm signal of MCU output duty cycle makes bactericidal lamp output ultraviolet radiation intensity become smaller, but not it is traditional allow ultraviolet radiation intensity to be zero remaining ponding to be caused not sterilized, but sterilizing to remaining ponding can continue to drink, and save water resource.

Description

A kind of purifier control system

Technical field

The utility model relates to purifier technical field more particularly to a kind of purifier control systems.

Background technique

Current existing purifier includes water purifier, clear water tank etc., and water purification system generally comprises power supply, water flow sensing Device controller, drive module, electron rectifier and ultraviolet germicidal lamp.Such as the patent of the patent No. 200820101703.3, just During being often used, controller is needed to detect that water-flow signal, control ultraviolet germicidal lamp are just powered on；Otherwise it is driving When module does not detect water-flow signal, ultraviolet germicidal lamp is to be in close state, and is in ultraviolet germicidal lamp and closes shape Certain ponding is had when state, in water tank, within the regular hour, if the water in water tank does not use, will breed bacterium, but It is and ponding is sterilized without ultraviolet germicidal lamp, it, can only be by the in water tank so when people usually wake up in the morning One glass of water is outwelled, thus caused by water resource waste.

Utility model content

In view of the above drawbacks of the prior art, the technical problem to be solved by the utility model is to provide a kind of water purifications to set Standby control system, so as to solve the deficiencies in the prior art.

To achieve the above object, the utility model provides a kind of purifier control system, including MCU controller, water Flow detection module, DC-DC module, AC-DC module, display module, signal driver module, high-frequency inversion boost module and abnormal inspection Survey module, the MCU controller and water flow detection module, DC-DC module, display module, signal driver module, abnormality detection mould Block electrical connection, the DC-DC module input terminal and AC-DC module are electrically connected, and the DC-DC module output end and MCU are controlled Device processed, water flow detection module, the electrical connection of high-frequency inversion boost module, the AC-DC module output end and signal driver module Electrical connection, the signal driver module output end and high-frequency inversion boost module are electrically connected, the high-frequency inversion boosting mould Block output end and abnormality detection module, bactericidal lamp are electrically connected.

A kind of above-mentioned purifier control system, the MCU controller are single-chip microcontroller.

A kind of above-mentioned purifier control system, the water flow detection module are water flow sensing unit.

A kind of above-mentioned purifier control system, the AC-DC module include sequentially connected electromagnetic compatibility module, become Die block, rectification filtering module.

A kind of above-mentioned purifier control system, the display module are the LED light of multiple parallel connections.

A kind of above-mentioned purifier control system, the signal driver module include triode Q4, Q1, Q3 and MOS Pipe Q2, the triode Q4 base stage are connect with single-chip microcontroller PWN output end, described triode Q4 collector connecting triode Q1, Q3 Base stage connects resistance R1, the emitter of described triode Q1, Q3 between the triode Q4 collector and triode Q1 collector Connect metal-oxide-semiconductor Q2 grid, the metal-oxide-semiconductor Q2 drain electrode connection high-frequency inversion boost module, the triode Q3 collector and transmitting Resistance R2, triode Q3, Q4 emitter and metal-oxide-semiconductor Q2 source grounding, the triode Q1 collector are connected between pole Connect AC-DC module power output end VCC.

The beneficial effects of the utility model are:

The control system of the utility model has signal to come when flow module, the biggish pwm signal of MCU output duty cycle, Bactericidal lamp output ultraviolet radiation intensity is set to become larger, it is sufficient to kill the bacterium in purifier.When flow module no signal comes, The lesser pwm signal of MCU output duty cycle makes bactericidal lamp output ultraviolet radiation intensity become smaller, but not it is traditional allow purple UV radiation intensity is zero remaining ponding to be caused not sterilized, but can sterilize to remaining ponding can continue to drink, Water resource is saved, effectively solution the deficiencies in the prior art.

Make furtherly below with reference to technical effect of the attached drawing to the design of the utility model, specific structure and generation It is bright, to be fully understood from the purpose of this utility model, feature and effect.

Detailed description of the invention

Fig. 1 is the overall structure block diagram of the utility model.

Fig. 2 is the AC-DC module circuit diagram of the utility model.

Fig. 3 is the DC-DC module circuit diagram of the utility model.

Fig. 4 is the MCU controller circuitry schematic diagram of the utility model.

Fig. 5 is the water flow detection module circuit diagram of the utility model.

Fig. 6 is the signal driver module circuit diagram of the utility model.

Fig. 7 is the high-frequency inversion boost module circuit diagram of the utility model.

Fig. 8 is the display module circuit diagram of the utility model.

Fig. 9 is the abnormality detection module circuit schematic of the utility model.

Specific embodiment

As shown in Figure 1, a kind of purifier control system, including MCU controller 1, water flow detection module 2, DC-DC module 3, AC-DC module 4, display module 5, signal driver module 6, high-frequency inversion boost module 7 and abnormality detection module 8, the MCU Controller 1 electrically connects with water flow detection module 2, DC-DC module 3, display module 5, signal driver module 6, abnormality detection module 8 It connects, 3 input terminal of DC-DC module is connect with 4 modular electrical of AC-DC module, and 3 output end of DC-DC module and MCU are controlled Device 1, water flow detection module 2, high-frequency inversion boost module 7 are electrically connected, and 4 output end of AC-DC module and signal drive mould Block 6 is electrically connected, and 6 output end of signal driver module and high-frequency inversion boost module 7 are electrically connected, the high-frequency inversion liter 7 output end of die block and abnormality detection module 8, bactericidal lamp 9 are electrically connected.

As shown in figure 4, the MCU controller 1 is single-chip microcontroller, the preferred model STC15W408AS of the present embodiment.

As shown in figure 5, the water flow detection module 2 is water flow sensing unit, the preferred model FW-06 of the present embodiment.J4 connects Enter water flow sensing unit, R7 pull-up resistor.It is low level when there is water flow to flow through Open, disconnection position Open is high level.

As shown in Fig. 2, the AC-DC module 4 includes sequentially connected electromagnetic compatibility module, voltage changing module, rectifying and wave-filtering Module.Wherein: electromagnetic compatibility module reaches for product and is designed by international standards such as EMC standard, safety, this module is effective High-frequency Interference of the inhibition from the sum that power grid enters from power supply itself to external radiation.Voltage changing module, using Industrial Frequency Transformer by city Electric (such as AC110/220V 50/60Hz) be converted into power frequency low pressure (such as: the 50Hz/60Hz of AC5 ~ 36).Rectification filtering module, Effective rectifying and wave-filtering is carried out to prime power frequency low pressure, is converted into human-body safety DC voltage (DC5 ~ 36V > 3W).

As shown in figure 3, since other inside modules are different using voltage, it is therefore desirable to which one by AC-DC circuit output Voltage value (such as DC12 ~ 36V) is converted into voltage value (such as DC3.3 ~ 5V) workable for other each modules.Electric current is by VCC It flows into, is filtered into CE1 is crossed, prevents transient voltage excessively high and design；C4 is filter capacitor, filters out the high frequency spurs of VCC；U1 Input VCC is depressured, while exporting VCC_A after pressure stabilizing by decompression voltage regulator.There is transient state height in a flash in output in U1 Pressure, therefore add CE2 filtering, while LED and current-limiting resistance is added in this module, it is more preferable that user is prompted to be currently at energized state, Avoid improper operation.

As shown in figure 8, the display module 5 is the LED light of multiple parallel connections, it acts as refer to as working state of system Show, the sterilization signal strength size of the bright how much expression bactericidal lamps of lamp, when sterilizing, signal is stronger, controller pin connected to it The more of high level are exported, for such lamp with regard to bright more, a bright lamp indicates that current signal strength be expire signal strength 25%.

As shown in fig. 6, the signal driver module 6 includes triode Q4, Q1, Q3 and metal-oxide-semiconductor Q2, the triode Q4 Base stage is connect with single-chip microcontroller PWN output end, triode Q4 collector connecting triode Q1, Q3 base stage, the triode Q4 Resistance R1 is connected between collector and triode Q1 collector, the emitter of described triode Q1, Q3 connect metal-oxide-semiconductor Q2 grid, The metal-oxide-semiconductor Q2 drain electrode connects high-frequency inversion boost module 7, connects resistance between the triode Q3 collector and emitter R2, triode Q3, Q4 emitter and metal-oxide-semiconductor Q2 source grounding, the triode Q1 collector connect AC-DC module 4 Power output end VCC.Its working principle is that: triode Q4 base stage inputs the pwm signal of single-chip microcontroller output, when the high electricity of pwm signal Flat part is input to triode Q4 base stage, triode Q4 conducting, and triode Q4 collector terminal is low level, PNP triode Q3 this When be connected, NPN triode Q1 is ended at this time.On the contrary, when pwm signal low level part is input to triode Q4 base stage, triode Q4 cut-off, triode Q4 collector terminal are high level, and PNP triode Q3 ends at this time, and NPN triode Q1 is connected at this time.Also Be to say, finally enter the signal or pwm signal of metal-oxide-semiconductor Q2 grid, the purpose of push-pull circuit of triode Q1, Q3 composition be for Promotion pwm signal characteristic promotes delivery efficiency.

In addition, the duty ratio of pwm signal determines the size of driving bactericidal lamp ultraviolet irradiation intensity.When pwm signal accounts for Empty ratio becomes larger, and driving bactericidal lamp ultraviolet irradiation intensity becomes strong, and pwm signal duty ratio becomes smaller, and drives bactericidal lamp ultraviolet irradiation Weakened, where the effect of this namely the utility model.When flow module has signal to come, MCU pin OPEN is low electricity Flat, the biggish pwm signal of MCU output duty cycle makes bactericidal lamp ultraviolet irradiation intensity reach improper sterilization intensity, it is sufficient to kill Bacterium in purifier.When flow module no signal comes, MCU pin OPEN is high level, and MCU output duty cycle is lesser Pwm signal makes the reduction of bactericidal lamp ultraviolet irradiation intensity, but be not it is traditional allow bactericidal lamp ultraviolet irradiation intensity to be zero, lead Remaining ponding is caused not have bactericidal effect, but can sterilize to remaining ponding can continue to drink, and save water resource.

In addition, the utility model also sets up abnormality detection module 8, for detecting 7 working condition of high-frequency inversion boost module, As shown in Figure 9.When high-frequency inversion boost module 7 is in running order (including standby and normal work), using R12 as sampling Resistance, the electric current of acquisition high frequency boosting inverter module working condition, then the signal sampled is amplified by Q6 and is converted into The mould electric signal of 0-5V, then by AD conversion inside single-chip microcontroller to learn whether high frequency boosting inverter module normal.When high frequency is inverse Becoming 7 operation irregularity of boost module, single-chip microcontroller can stop issuing the pwm signal of driving high frequency boosting inverter module work, with High-frequency inversion boost module 7 is protected, while single-chip microcontroller sends abnormal signal and awards display module for display reminding user, in time Connection is after sale.

The preferred embodiments of the present invention have been described in detail above.It should be appreciated that the ordinary skill people of this field Member according to the present utility model can conceive without creative work makes many modifications and variations.Therefore, all this technology necks Technical staff passes through logic analysis, reasoning or limited reality according to the design of the utility model on the basis of existing technology in domain Available technical solution is tested, it all should be within the scope of protection determined by the claims.

Claims (6)

1. a kind of purifier control system, it is characterised in that: including MCU controller (1), water flow detection module (2), DC-DC Module (3), AC-DC module (4), display module (5), signal driver module (6), high-frequency inversion boost module (7) and abnormal inspection It surveys module (8), the MCU controller (1) and water flow detection module (2), DC-DC module (3), display module (5), signal drive Module (6), abnormality detection module (8) electrical connection, DC-DC module (3) input terminal and AC-DC module (4) modular electrical Connection, DC-DC module (3) output end and MCU controller (1), water flow detection module (2), high-frequency inversion boost module (7) Electrical connection, AC-DC module (4) output end and signal driver module (6) are electrically connected, the signal driver module (6) Output end and high-frequency inversion boost module (7) are electrically connected, high-frequency inversion boost module (7) output end and abnormality detection mould Block (8), bactericidal lamp (9) electrical connection.

2. a kind of purifier control system as described in claim 1, it is characterised in that: the MCU controller (1) is monolithic Machine.

3. a kind of purifier control system as described in claim 1, it is characterised in that: the water flow detection module (2) is Water flow sensing unit.

4. a kind of purifier control system as described in claim 1, it is characterised in that: the AC-DC module (4) include according to The electromagnetic compatibility module of secondary connection, voltage changing module, rectification filtering module.

5. a kind of purifier control system as described in claim 1, it is characterised in that: the display module (5) is multiple LED light in parallel.

6. a kind of purifier control system as described in claim 1, it is characterised in that: signal driver module (6) packet It includes triode Q4, Q1, Q3 and metal-oxide-semiconductor Q2, the triode Q4 base stage is connect with single-chip microcontroller PWN output end, the triode Q4 collector connecting triode Q1, Q3 base stage connects resistance R1 between the triode Q4 collector and triode Q1 collector, The emitter of described triode Q1, Q3 connect metal-oxide-semiconductor Q2 grid, the metal-oxide-semiconductor Q2 drain electrode connection high-frequency inversion boost module (7), resistance R2, triode Q3, Q4 emitter and the source metal-oxide-semiconductor Q2 are connected between the triode Q3 collector and emitter It is extremely grounded, the triode Q1 collector connects AC-DC module (4) power output end VCC.