CN205002271U

CN205002271U - Air purifier

Info

Publication number: CN205002271U
Application number: CN201520561587.3U
Authority: CN
Inventors: 薛雨航
Original assignee: Beijing Tiantai Ruixiang Technology Development Co Ltd
Current assignee: Beijing Tiantai Ruixiang Technology Development Co Ltd
Priority date: 2015-07-29
Filing date: 2015-07-29
Publication date: 2016-01-27
Anticipated expiration: 2025-07-29

Abstract

The utility model discloses an air purifier, including dust removal module, ultraviolet lamp module piece, the fan drive module, a controller, the display module, the button module, infrared receiver module, the clock module, air quality detection module, the executable module, through at dust removal module, ultraviolet lamp module piece sets up opto -coupler ware and frequency -selecting unit and sets up the bidirectional thyristor takes a year operation, satisfied under the prerequisite of the normal work demand of this equipment, signal transmission's precision and immunity ability have been guaranteed, interference killing feature and transmission precision in dust removal module and ultraviolet module have been improved, and can play the effect of a strong and weak electrical isolation, practicality has been improved.

Description

A kind of air purifier

Technical field

The utility model relates to a kind of air purifier.

Background technology

Negative ion air-cleaner, be that a kind of anion utilizing self to produce purifies air, dedusting, taste removal, sterilizing environment optimization electrical equipment, the difference of itself and traditional air cleaner is using anion as acting factor, make an initiative sally the harmful substance caught in air, and traditional air cleaner is blower fan exhausting, utilize strainer filtering dust to purify air, be called the cleaning principle of passive adsorption filtering type, need to regularly replace filter screen, negative ion air-cleaner is then without the need to consumptive material.And small particle diameter anion, then there is good biologically active, be easy to through human body blood-brain barrier, enter human body and play its biological effect.The harm of negative ion air-cleaner is produce this derivative of ozone when producing anion, and can produce harm to human body after ozone concentration exceeds standard.

So general air purifier all can comprise with lower module: 1, dedusting module, for eliminating the dust in air; 2, ultraviolet lamp module, for assisting sterilisation, improves environmental quality; 3, blower fan driver module, for driving blower fan work; 4, controller, for controlling modules work; 5, display module, for showing situations such as air qualities; 6, key-press module, for providing the button of setup parameter; 7, infrared receiver module, for identifying remote signal; 8, clock module, for providing reference clock signal; 9, Detection of Air Quality module, for detecting the concentration of dust in air.10, Executive Module, for driving the work of the actuating equipment such as anion generator, humidifier.

But at present in the arranging of dedusting module and ultraviolet lamp module, its due to drive singal be 220V signal, and control signal is 3V-15V direct current signal, so in use need to increase its Signal transmissions precision, also need further to improve its isolation performance simultaneously.

Utility model content

For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of air purifier of UV-module that a kind of isolation performance is high and dedusting module.

For achieving the above object, the utility model provides following technical scheme: a kind of air purifier, comprise dedusting module, ultraviolet lamp module, blower fan driver module, controller, display module, key-press module, infrared receiver module, clock module, Detection of Air Quality module, Executive Module, dedusting module comprises one first optical coupler, the first pull down resistor is connected between its first pin and power supply high level, its second pin receives the triggering signal for triggering deduster work, its the 3rd pin is connected to the first divider resistance, its the 4th pin is connected to the second divider resistance, the first bidirectional triode thyristor for controlling deduster work is coupled with between first divider resistance and the second divider resistance, the control pole of described first bidirectional triode thyristor is connected to the 3rd pin of the first optical coupler, described first bidirectional triode thyristor has been arranged in parallel first, and menu is first frequently, described first frequency menu unit comprises the first frequency be arranged in series and selects resistance and first frequently to select electric capacity, input for suppressing external ac power source,

Ultraviolet lamp module comprises one second optical coupler, the second pull down resistor is connected between its first pin and power supply high level, its second pin receives for triggering uviol lamp work triggering signal, its the 3rd pin is connected to the 3rd divider resistance, its the 4th pin is connected to the 4th divider resistance, the second bidirectional triode thyristor for controlling uviol lamp work is coupled with between 3rd divider resistance and the 4th divider resistance, the control pole of described second bidirectional triode thyristor is connected to the 3rd pin of the second optical coupler, described second bidirectional triode thyristor has been arranged in parallel second, and menu is first frequently, described second frequency menu unit comprises the second frequency be arranged in series and selects resistance and second frequently to select electric capacity, input for suppressing external ac power source.

The utility model can be set to further: described blower fan driver module also comprises wind pressure monitoring portion, for monitoring blast, described wind pressure monitoring portion comprises wind pressure sensor, the signal pins of described wind pressure sensor is connected to the 4th optical coupler, and the 3rd pin of described 4th optical coupler is for sending wind pressure signal.

The utility model can be set to further: described Detection of Air Quality module comprises dust test section, and described dust test section comprises dust sensor, for testing environment dust concentration;

Amplifier, the output of its positive input terminal and dust sensor is coupled with the first gain resistor and the second gain resistor that are arranged in series, the grounding pin of its negative input end and dust sensor is coupled with the 3rd gain resistor, is coupled with the 4th gain resistor between its output and negative input end; The output of amplifier and ground are coupled with voltage-stabiliser tube between holding, the node that described first gain resistor and the second gain resistor couple and ground are coupled with gain electric capacity of voltage regulation between holding, and its output carries out feedback regulation for exporting outputing signal in controller after amplification.

The utility model can be set to further: described Detection of Air Quality module also comprises CH_4 detection portion, for detecting methane concentration.

The utility model can be set to further: described air purifier also comprises Temperature and Humidity module, and described Temperature and Humidity module comprises a DHT11 sensor, for gathering environment temperature and moisture signal, and is sent to controller by a data pin.

The utility model can be set to further: the model of described first optical coupler and the second optical coupler is all set to 3083.

By adopting technique scheme, compared to prior art, under meeting the prerequisite of normal work requirements of this equipment, ensure that precision and the Immunity Performance of Signal transmissions, improve at the antijamming capability of dedusting module and UV-module and transmission precision, and the effect of a strong and weak electricity isolation can be played, improve Practical Performance.

Accompanying drawing explanation

Fig. 1 is the utility model dedusting module circuit diagram;

Fig. 2 is the utility model UV-module circuit diagram;

Fig. 3 is the utility model blast test section circuit diagram;

Fig. 4 is the utility model blower fan power supply circuit diagram;

Fig. 5 is the utility model blower fan drive division circuit diagram;

Fig. 6 is the utility model first control module schematic diagram;

Fig. 7 is the utility model second control module schematic diagram;

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

Fig. 9 is the utility model infrared receiver module circuit diagram;

Figure 10 is the utility model Temperature and Humidity module circuit diagram;

Figure 11 is the utility model key-press module circuit diagram;

Figure 12 is the utility model clock module circuit diagram;

Figure 13 is the utility model alarm module circuit diagram;

Figure 14 is the utility model Detection of Air Quality module circuit diagram;

Figure 15 is the utility model Executive Module circuit diagram;

Figure 16 is the utility model CH_4 detection portion circuit diagram.

Detailed description of the invention

Referring to figs. 1 through Figure 15, the utility model embodiment is described further.

With reference to shown in Fig. 1, dedusting module comprises one first optical coupler U3, the first pull down resistor is connected between first pin and power supply high level, its second pin receives triggering signal, its the 3rd pin is connected to the first divider resistance R32, its the 4th pin is connected to the second divider resistance R33, the first bidirectional triode thyristor Q12 is coupled with between first divider resistance R32 and the second divider resistance R33, the control pole of described first bidirectional triode thyristor Q12 is connected to the 3rd pin of the first optical coupler U3, described first bidirectional triode thyristor Q12 has been arranged in parallel first, and menu is first frequently, described first frequency menu unit comprises the first frequency be arranged in series and selects resistance R34 and first frequently to select electric capacity C20, input for suppressing external ac power source.

When inputting enable signal in controller, control the first optical coupler U3 conducting, 3rd pin and the 4th pin of the first optical coupler U3 are equivalent to short circuit, like this by the first divider resistance R32 and the second divider resistance R33 by external ac power source dividing potential drop, the control pole of bidirectional triode thyristor is made to form trigger current, bidirectional triode thyristor conducting, short circuit first is menu unit frequently, and when external ac power source input reduces, the first first effect playing a compensation of menu frequently, anti-stop signal saltus step, compared to only adopting optocoupler or controllable silicon as switch element, make Signal transmissions precision better, its band can be increased simultaneously and carry compensation ability, in one embodiment, described pull down resistor resistance is preferably 330 ohm, first optical coupler U3 elects 3083 as, described first divider resistance R32 is set to 510 ohm, described second divider resistance R33 is set to 470 ohm, described bidirectional triode thyristor is set to T142, described first selects resistance R34 to elect 100 ohm as frequently, described second selects electric capacity to elect 223uF as frequently.

With reference to shown in Fig. 2, ultraviolet lamp module comprises one second optical coupler U4, the second pull down resistor R35 is connected between first pin and power supply high level, its second pin receives triggering signal, its the 3rd pin is connected to the 3rd divider resistance R36, its the 4th pin is connected to the 4th divider resistance R37, the second bidirectional triode thyristor is coupled with between 3rd divider resistance R36 and the second divider resistance R33, the control pole of described second bidirectional triode thyristor is connected to the 3rd pin of the second optical coupler U4, described second bidirectional triode thyristor Q13 has been arranged in parallel second, and menu is first frequently, described second frequency menu unit comprises the second frequency be arranged in series and selects resistance and second frequently to select electric capacity, input for suppressing external ac power source.

When inputting enable signal in controller, control the second optical coupler U4 conducting, 3rd pin and the 4th pin of the second optical coupler U4 are equivalent to short circuit, like this by the first divider resistance R32 and the second divider resistance R33 by external ac power source dividing potential drop, the control pole of bidirectional triode thyristor is made to form trigger current, bidirectional triode thyristor conducting, short circuit first is menu unit frequently, and when external ac power source input reduces, the second first effect playing a compensation of menu frequently, anti-stop signal saltus step, compared to only adopting optocoupler or controllable silicon as switch element, make Signal transmissions precision better, its band can be increased simultaneously and carry compensation ability, in one embodiment, described pull down resistor resistance is preferably 330 ohm, second optical coupler U4 elects 3083 as, described first divider resistance R32 is set to 510 ohm, described second divider resistance R33 is set to 470 ohm, described bidirectional triode thyristor is set to T142, described second selects resistance to elect 100 ohm as frequently, described second selects electric capacity to elect 223uF as frequently.

With reference to shown in Fig. 4 and Fig. 5, blower fan is controlled by blower fan driver module, and blower fan driver module comprises blower fan power supply and blower fan drive division, and described blower fan power supply comprises the first electric capacity of voltage regulation C36, for carrying out voltage stabilizing to outside input AC electricity, full-bridge rectification bridge D6, two brachium pontis of one symmetry are connected to the first electric capacity of voltage regulation C36, and another symmetrical brachium pontis provides fan power voltage, described full-bridge rectification bridge D6 is also coupled with a voltage stabilizing portion, and described voltage regulation unit comprises the first voltage regulation resistance R60, the second electric capacity of voltage regulation C15 and the 3rd electric capacity of voltage regulation C15A of setting parallel with one another, for carrying out voltage stabilizing to supply voltage, described blower fan drive division comprises the 3rd optical coupler U11, one NPN pipe, its second pin is coupled with pull-up resistor R47 between ground end, the first protective resistance R43 is coupled with between its 3rd pin and power supply high level, compensating resistance R45 is coupled with between power supply high level and a NPN pipe Q2, the control pole of a described NPN pipe Q2 is connected to second pin of the 3rd optical coupler U11, the control pole of a described NPN pipe Q2 is coupled with the first filter resistance R59 and the first filter capacitor C37 that are arranged in parallel, the emitter stage of a described NPN pipe Q2 is used for output drive signal to drive blower fan work.

During external ac power source input, a voltage stabilizing is carried out by the first electric capacity of voltage regulation C36, and carry out full-bridge rectification by full-bridge rectification bridge D6, and first voltage regulation resistance R60 and two electric capacity of voltage regulation in the first voltage stabilizing portion carries out secondary pressure, make the stable output of supply voltage, the PWM ripple that drive division is controlled by controller carries out band year driving, carry out light-coupled isolation by the 3rd optical coupler U11 and carry out band by a NPN pipe Q2 carrying, add its load capacity and load performance, in one embodiment, the capacity of the first electric capacity of voltage regulation C36 is preferably 223uF, full-bridge rectification bridge D6 is preferably RS507L, first voltage regulation resistance R60 resistance is preferably 120K ohm, second electric capacity of voltage regulation C15 capacity is preferably 220uF, 3rd electric capacity of voltage regulation C15A is preferably 220uF.Described pull-up resistor R47 resistance elects 330 ohm as; 3rd optical coupler U11 is preferably PC817; described first protective resistance R43 resistance is preferably 100K ohm; described compensating resistance R45 resistance elects 2K ohm as; described first filter capacitor C37 capacity is preferably 2.2uF, and described first filter resistance R59 resistance is preferably 51K ohm.

With reference to shown in Fig. 3, described blower fan driver module also comprises wind pressure monitoring portion, and for monitoring blast, described wind pressure monitoring portion comprises wind pressure sensor JP6, the signal pins of described wind pressure sensor JP6 is connected to the 4th optical coupler, and the 3rd pin of described 4th optical coupler is for sending wind pressure signal.

Controller is with reference to shown in Fig. 6 and Fig. 7, it realizes controlling modules all in the utility model content by two MSP430G2553, two control modules realize exporting alternately by communication, compared to higher by a MCU stability, synchronous signal disposal ability can not decline, and when mistake appears in a MCU, this rub-out signal can be detected by another MCU, and point out user operation irregularity.

With reference to shown in Fig. 8, also comprise a display module, for showing LCD work.

With reference to shown in Fig. 9, also comprising infrared receiver module, arranging for providing remote pilot.

With reference to shown in Figure 10, also comprise Temperature and Humidity module, comprise a DHT11, for detecting ambient temperature humidity and sending the I/O mouth of data-signal to controller.The output of controller is provided to compensate.DHT11 be a have calibrate data signal export Temperature Humidity Sensor.Precision humidity+-5%RH, temperature+-2 DEG C, range humidity 20-90%RH, temperature 0 ~ 50 DEG C.DHT11 digital hygro sensor is a humiture compound sensor containing calibrating data signal output, the digital module acquisition technique of its application specific and temperature and humidity sensing technology, guarantees that product has high reliability and remarkable long-time stability.Sensor comprises a resistance-type sense and to wet element and a NTC temperature element, and is connected with a high-performance 8 single-chip microcomputers.Therefore this product has that quality brilliance, super fast response, antijamming capability are strong, cost performance pole advantages of higher.Each DHT11 sensor is calibrated in very accurate humidity verification room.Calibration factor exists in OTP internal memory with the form of program, and sensor internal will call these calibration factors in the processing procedure detecting model.One wire system serial line interface, makes the system integration become fast simple and easy.Extra small volume, extremely low power consumption, become in such application, in the optimal selection of harsh application scenario.Pin can be reduced to take simultaneously.

With reference to shown in Figure 11, also comprise key-press module, for arranging power output and exporting data parameters.

With reference to shown in Figure 12, clock module comprises DS1302, is connected to crystal oscillator, the pin arrangements of DS1302, and wherein Vcc2 is main power source, and VCC1 is back-up source.When main power source cuts out, the continuous operation of clock also can be kept.DS1302 is powered by the greater in both Vcc1 or Vcc2.When Vcc2 is greater than Vcc1+0.2V, Vcc2 powers to DS1302.When Vcc2 is less than Vcc1, DS1302 is powered by Vcc1.X1 and X2 is oscillation source, external 32.768kHz crystal oscillator.RST is reset/chip select line, starts all data transmission by RST input queued switches being set high level.RST input has two kinds of functions: first, RST connects control logic, allows address/command sequence to send into shift register; Secondly, RST provides the method stopping single byte or multiple bytes data transfer.When RST is high level, all data transmission are initialised, and allow to operate DS1302.If RST is set to low level in transport process, then can stop this secondary data transmission, I/O pin becomes high-impedance state.Power on run time, before Vcc>2.0V, RST must keep low level.Only when SCLK is low level, RST could be set to high level.I/O is serial date transfer output (two-way), after be described in detail.SCLK is input end of clock.

With reference to shown in Figure 13, alarm module comprises output resistance R19, the 3rd NPN pipe Q3 and buzzer, the alarm of described output resistance R19 receiving alarm signal, and the break-make controlling the 3rd NPN pipe Q3 controls buzzer B1 action, when any one ambient parameter is abnormal, alarm signal exports as high level or cycle Automatic level control turn-on and turn-off, controls buzzer B1 alarm.Described 3rd NPN pipe Q3 elects 9014 as, and described output resistance R19 resistance elects 1K ohm as.

With reference to shown in Figure 14, Detection of Air Quality module comprises dust test section and CH_4 detection portion, and described dust test section comprises dust sensor GP2Y1010AU, for testing environment dust concentration;

Amplifier, the output of its positive input terminal and dust sensor is coupled with the first gain resistor R6 and the second gain resistor R13 that are arranged in series, the grounding pin of its negative input end and dust sensor is coupled with the 3rd gain resistor R14, is coupled with the 4th gain resistor R15 between its output and negative input end; The output of amplifier and ground are coupled with voltage-stabiliser tube between holding, the node that described first gain resistor R6 and the second gain resistor R13 couples and ground are coupled with gain electric capacity of voltage regulation between holding, and its output carries out feedback regulation for exporting outputing signal in controller after amplification.

In one embodiment, described first gain resistor R6 resistance elects 20K ohm as, described second gain resistor R13 resistance is preferably 49K ohm, and described 3rd gain resistor R14 resistance is preferably 49K9 ohm, and described 4th gain resistor R15 is preferably 300K ohm.

With reference to shown in Figure 16, CH_4 detection portion comprises methane transducer, and for detecting methane concentration, responsive sub-prime is made up of integrated heater and the metal-oxide semiconductor (MOS) that formed on aluminum oxide substrate.When the gas that can detect exists, in air, the concentration of this gas is higher, and the electrical conductivity of sensor is higher.Use simple circuit just the change of this electrical conductivity can be transformed to the output signal corresponding with gas concentration.TGS2000 has very high sensitivity to methane.Because very low to the sensitivity of volatile alcohol (interference gas in living environment), so be best suited for for Domestic gas leakage alarm.Because responsive sub-prime is very little, so the heating current of TGS2000 only has 56mA just much of that.In addition, the non-sensitive part of this sensor is loaded in the Metal Packaging of the TO-5 of standard.

With reference to shown in Figure 15, Executive Module comprises stepper motor, humidifier, anion generator.Carried by a UNL2003 band and control, structure is simple, and height is withstand voltage, big current Darlington IC-ULN2003, ULN2003 are high withstand voltage, big current Darlington arrays, is made up of seven silicon NPN Darlingtons.ULN2003 is large driven current density array, is used in the control circuits such as single-chip microcomputer, intelligence instrument, PLC, digital output card.Can Direct driver relay even load.Input 5VTTL level, output can reach 500mA/50V.ULN2003 is high withstand voltage, big current Darlington series, is made up of seven silicon NPN Darlington transistors.Every a pair Darlington of ULN2003 is all connected the base resistance of a 2.7K, and under the operating voltage of 5V, it directly can be connected with cmos circuit with TTL, directly can process the data originally needing standard logic buffer to process.ULN2003 is high-voltage great-current darlington transistor array series of products, has the features such as current gain is high, operating voltage is high, temperature range is wide, carrying load ability is strong, is adapted to the system that each generic request high-speed high-power drives.

The above is only preferred embodiment of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. an air purifier, comprises dedusting module, ultraviolet lamp module, blower fan driver module, controller, display module, key-press module, infrared receiver module, clock module, Detection of Air Quality module, Executive Module, it is characterized in that:

Dedusting module comprises one first optical coupler, the first pull down resistor is connected between its first pin and power supply high level, its second pin receives the triggering signal for triggering deduster work, its the 3rd pin is connected to the first divider resistance, its the 4th pin is connected to the second divider resistance, the first bidirectional triode thyristor for controlling deduster work is coupled with between first divider resistance and the second divider resistance, the control pole of described first bidirectional triode thyristor is connected to the 3rd pin of the first optical coupler, described first bidirectional triode thyristor has been arranged in parallel first, and menu is first frequently, described first frequency menu unit comprises the first frequency be arranged in series and selects resistance and first frequently to select electric capacity, input for suppressing external ac power source,

2. a kind of air purifier as claimed in claim 1, it is characterized in that: described blower fan driver module also comprises wind pressure monitoring portion, for monitoring blast, described wind pressure monitoring portion comprises wind pressure sensor, the signal pins of described wind pressure sensor is connected to the 4th optical coupler, and the 3rd pin of described 4th optical coupler is for sending wind pressure signal.

3. a kind of air purifier as claimed in claim 1, is characterized in that: described Detection of Air Quality module comprises dust test section, and described dust test section comprises dust sensor, for testing environment dust concentration;

4. a kind of air purifier as claimed in claim 3, is characterized in that: described Detection of Air Quality module also comprises CH_4 detection portion, for detecting methane concentration.

5. a kind of air purifier as claimed in claim 1 or 2 or 3 or 4, it is characterized in that: described air purifier also comprises Temperature and Humidity module, described Temperature and Humidity module comprises a DHT11 sensor, for gathering environment temperature and moisture signal, and be sent to controller by a data pin.

6. a kind of air purifier as claimed in claim 5, is characterized in that: the model of described first optical coupler and the second optical coupler is all set to 3083.