CN109140615B - Air treatment device - Google Patents
Air treatment device Download PDFInfo
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- CN109140615B CN109140615B CN201810927139.9A CN201810927139A CN109140615B CN 109140615 B CN109140615 B CN 109140615B CN 201810927139 A CN201810927139 A CN 201810927139A CN 109140615 B CN109140615 B CN 109140615B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention discloses an air treatment device, which comprises a body, a sensor unit, a controller, a first dust removal module and a second dust removal module, wherein the sensor unit, the controller, the first dust removal module and the second dust removal module are arranged on the body; the sensor unit is used for monitoring the ambient air quality, and the controller controls the two dust removal modules to be opened or closed according to the grade of the ambient air quality; the indoor or outdoor ambient air quality is monitored through the sensor unit and is transmitted to the controller, and the controller controls and adjusts the working states of the two dust removal modules in real time according to the grade of the ambient air quality, so that the dust removal modules of the air treatment device can adjust the working states in real time along with the ambient air quality, and the service life of the dust removal device of the air treatment device is prolonged.
Description
Technical Field
The invention relates to the technical field of air treatment, in particular to an air treatment device.
Background
In order to provide an indoor environment with high quality of air, an anion generator is generally used to purify indoor air. An independent air purifier is arranged to purify indoor air, so that the indoor air occupies large space; in order to save space resources, the current air conditioner usually integrates the function of an anion generator. However, the work of the negative ion generator runs along with the working state of the air conditioner, so that no matter what state the indoor air quality is, when the air conditioner is started, the negative ion generator continuously works, and the negative ion generator stops working until the air conditioner is turned off. Based on the above situation, the anion generator of the air conditioner has the advantages of fast function loss, short service life and easy damage.
Disclosure of Invention
The embodiment of the application solves the problem that the service life of an air purification module of an air treatment device such as an air conditioner is short in the prior art by providing the air treatment device, realizes the control of opening the air purification module in different areas according to the quality grade of ambient air, and prolongs the service life of the air treatment device such as the air conditioner.
The embodiment of the application provides an air treatment device, which comprises a body, a sensor unit, a controller, a first dust removal module and a second dust removal module, wherein the sensor unit, the controller, the first dust removal module and the second dust removal module are arranged on the body; the sensor unit is used for monitoring the ambient air quality and transmitting an ambient air quality signal obtained through monitoring to the controller, and the controller controls the first dust removal module and the second dust removal module to be opened or closed according to the grade of the ambient air quality.
Optionally, the sensor unit is configured to monitor a concentration of PM2.5 particles in ambient air, and the controller divides the ambient air quality into three levels, i.e., a good level, a normal level and a bad level according to the received concentration of the PM2.5 particles; when the grade of the ambient air quality is excellent, the controller controls the first dust removal module to be closed and the second dust removal module to be opened; when the grade of the ambient air quality is general, the controller controls the first dust removal module to be opened and the second dust removal module to be closed; and when the grade of the ambient air quality is poor, the controller controls the first dust removal module and the second dust removal module to be started.
Optionally, when the concentration of the PM2.5 particles is less than or equal to a first preset value, the controller determines the level of the ambient air quality to be excellent; when the concentration of the PM2.5 particles is greater than a second preset value and less than or equal to a third preset value, the controller determines that the grade of the ambient air quality is normal; when the concentration of the PM2.5 particles is greater than a third preset value, the controller determines that the level of the ambient air quality is poor; wherein the first preset value is smaller than the second preset value, and the second preset value is smaller than the third preset value.
Optionally, the first dust removal module and the second dust removal module have the same structure, and both the first dust removal module and the second dust removal module comprise a boosting bag and a plurality of discharge electrodes, the discharge electrode of the first dust removal module is arranged at the air inlet, and the discharge electrode of the second dust removal module is arranged at the air outlet; the input end of the boosting package is correspondingly connected with the signal output end of the controller, and the output end of the boosting package is connected with the plurality of discharging electrodes; the controller controls the signal output of the signal output end according to the level of the ambient air quality, and when the signal output end of the controller outputs a signal, the boosting package converts the signal output by the controller into a direct-current negative high-voltage signal and transmits the direct-current negative high-voltage signal to the discharge electrode for discharging and dedusting.
Optionally, the boost pack includes an inverting boost unit and a rectifying and filtering unit, an input end of the inverting boost unit is correspondingly connected with a signal output end of the controller, an output end of the inverting boost unit is connected with the rectifying and filtering unit, and an output end of the rectifying and filtering unit is connected with the discharging electrode; the inversion boosting unit converts a direct-current low-voltage signal output by the controller into an alternating-current high-voltage signal and transmits the alternating-current high-voltage signal to the rectification filtering unit, and the rectification filtering unit converts the received alternating-current high-voltage signal into a direct-current negative high-voltage signal and transmits the direct-current negative high-voltage signal to the discharge electrode for discharge and dust removal.
Optionally, the inverting and boosting unit includes a transformer, a first triode, a first electrolytic capacitor, a first capacitor, a second capacitor, a first resistor, a second resistor, and a third resistor, a center tap of a primary winding of the transformer is connected to the signal output terminal of the controller as the input terminal of the inverting and boosting unit, and a secondary winding of the transformer is connected to the input terminal of the rectifying and filtering unit as the output terminal of the inverting and boosting unit; one end of a primary winding of the transformer is connected with the anode of the first electrolytic capacitor and one end of the first resistor, the cathode of the first electrolytic capacitor is connected with the other end of the first resistor and one end of the second resistor, the other end of the second resistor is connected with one end of the first capacitor and the base of the first triode, the collector of the first triode is connected with the other end of the primary winding of the transformer and one end of the second capacitor, the emitter of the first triode is connected with the other end of the first capacitor, the other end of the second capacitor and one end of the third resistor and is grounded, and the other end of the third resistor is connected with one end of a secondary winding of the transformer.
Optionally, the rectifying and filtering unit includes a first diode, a second diode, a third diode, a fourth diode, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, and a fourth resistor, a cathode of the first diode is used as an input end of the rectifying and filtering unit and connected to an output end of the inverting and boosting unit, one end of the third capacitor is used as another input end of the rectifying and filtering unit and connected to another output end of the inverting and boosting unit, and an anode of the first diode is connected to another end of the third capacitor; the anode of the second diode is connected with the cathode of the first diode through the fourth capacitor, and the cathode of the second diode is connected with the anode of the first diode; the anode of the third diode is connected with the cathode of the second diode through the fifth capacitor, and the cathode of the third diode is connected with the anode of the second diode; the anode of the fourth diode is connected with the cathode of the third diode through the sixth capacitor, and the cathode of the fourth diode is connected with the anode of the third diode; one end of the fourth resistor is connected with the anode of the fourth diode, and the other end of the fourth resistor is used as the output end of the rectifying and filtering unit and is connected with the discharge electrode.
Optionally, the boost package further includes an EMI processing unit disposed between the input terminal of the inverter boost unit and the signal output terminal of the controller, the EMI processing unit includes a fifth diode and a seventh capacitor, an anode of the fifth diode is connected to the signal output terminal of the controller as the input terminal of the EMI processing unit, a cathode of the fifth diode is connected to one end of the seventh capacitor, and the other end of the seventh capacitor is grounded; and a common end between the cathode of the fifth diode and the seventh capacitor is used as an output end of the EMI processing unit and is connected with an input end of the inversion boosting unit.
Optionally, the boost pack further includes a lightning strike protection unit disposed between the EMI processing unit and the input end of the inverter boost unit, where the lightning strike protection unit includes a first inductor and a second electrolytic capacitor, one end of the first inductor is connected to the output end of the EMI processing unit as the input end of the lightning strike protection unit, the other end of the first inductor is connected to the positive electrode of the second electrolytic capacitor, and the negative electrode of the second electrolytic capacitor is grounded; and a common end between the first inductor and the second electrolytic capacitor is used as an output end of the lightning stroke protection unit and is connected with an input end of the inversion boosting unit.
Optionally, the air treatment device is an air conditioner or an air motor.
One or more technical schemes that air intake air outlet provided in this application embodiment has following technological effect or advantage at least:
1. owing to adopted through sensor unit monitoring indoor or outdoor ambient air quality, and transmit to the controller, the controller is according to the grade that ambient air quality is located, the operating condition's of real time control adjustment first dust removal module and second dust removal module scheme, so, the dust collector who has solved air treatment device is under no matter what kind of environment, all continuously open work, thereby the short problem of life, and then realized air treatment device's dust collector along with ambient air quality, adjust operating condition in real time, air treatment device's dust collector's life has been prolonged.
2. As the scheme of dividing the air quality grade by monitoring the concentration of PM2.5 particles in the ambient air is adopted, and the working states of the first dust removal module and the second dust removal module are controlled and adjusted in real time according to the grade of the ambient air quality, the problem of poor dust removal effect due to the fact that the dust removal function with the same strength is adopted when the air treatment device is used for treating the ambient air quality with different grades is solved, the air quality with different grades is further realized, the dust removal function with different strengths of the air treatment device is started, and the air treatment device achieves the effect of rapid dust removal.
3. The scheme of dividing the air quality grade into three grades by monitoring the concentration of PM2.5 particles in the ambient air is adopted, so that the problem of complex air quality grade division is solved, and the effect of quickly adjusting the working state of the dust removal module by monitoring the concentration of PM2.5 particles in the ambient air is realized.
4. Due to the fact that the scheme that the direct-current negative high-voltage signal is loaded on the discharge electrode is adopted, the problem that the environment air quality is poor in the using process of the air treatment device is solved, the effect that the air is ionized to generate air negative ions to improve the environment air quality of the discharge electrode under the direct-current negative high-voltage signal is achieved, and the concentration of tiny dust is reduced.
5. The scheme that the low-voltage direct-current signal output by the controller is converted into the low-voltage alternating-current signal through the inversion boosting unit, then is converted into the high-voltage alternating-current signal, and finally is converted into the high-voltage direct-current signal through the rectification filtering unit is adopted, so that the problem that the direct-current negative high-voltage signal is difficult to generate is solved, and the direct-current negative high voltage can be generated through a simple circuit structure and is loaded on the discharge electrode to quickly generate the air negative ions so as to improve the quality of the ambient air.
6. Due to the fact that the scheme that the EMI processing unit is arranged between the inversion boosting unit and the controller is adopted, the problem of high-frequency signal interference in a circuit is solved, and the effects that the high-frequency signal interference is restrained quickly and the generated direct-current negative high-voltage signal is free of distortion are achieved.
7. Due to the fact that the lightning stroke protection unit is arranged between the EMI processing unit and the inversion boosting unit, the problem that electronic components are easy to burn when the circuit is subjected to surge impact is solved, the influence of the surge impact is restrained, the electronic components in the circuit are protected, and the service life of the dust removal device is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a dust removal module of an air treatment device according to an embodiment of the present invention;
FIG. 2 is a schematic circuit diagram of a dust removal module of an air treatment device according to an embodiment of the present invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1-2, an embodiment of the present application provides an air processing apparatus, which includes a body (not shown) having an air inlet (not shown) and an air outlet (not shown), a sensor unit (not shown) disposed on the body, a controller 100, a first dust removal module 200, and a second dust removal module 300, wherein the first dust removal module 200 is disposed at the air inlet, the second dust removal module 300 is disposed at the air outlet, the controller 100 has a plurality of signal input terminals (not shown), a plurality of signal output terminals, the sensor unit is connected to one signal input terminal of the controller 100, and two signal output terminals 110 of the controller 100 are respectively connected to the first dust removal module 200 and the second dust removal module 300; the sensor unit is used for monitoring the ambient air quality and transmitting an ambient air quality signal obtained by monitoring to the controller 100, and the controller 100 controls the first dust removal module 200 and the second dust removal module 300 to be opened or closed according to the grade of the ambient air quality.
In the present embodiment, the sensor unit is generally installed on the surface of the air treatment device to detect the indoor ambient air quality; at present, the most intuitive parameter of the air quality is the concentration of PM2.5 particles in the air, and when the concentration of the PM2.5 particles is high, the environmental air quality is poor; when the concentration of PM2.5 particles is low, the quality of the ambient air is good; thus, the sensor unit is used to monitor the concentration of PM2.5 particles in the ambient air and transmit the monitored PM2.5 particle concentration data to the controller 100. The controller 100 compares the received concentration value of the PM2.5 particles with an internally stored concentration preset value, and divides the ambient air quality into three grades, i.e. a good grade, a normal grade and a bad grade:
when the concentration of the PM2.5 particles is less than or equal to a first preset value, the controller 100 determines the level of the ambient air quality as excellent; when the concentration of the PM2.5 particles is greater than the second preset value and less than or equal to a third preset value, the controller 100 determines that the level of the ambient air quality is normal; when the concentration of the PM2.5 particles is greater than a third preset value, the controller 100 determines the level of the ambient air quality as poor; wherein the first preset value is smaller than the second preset value, and the second preset value is smaller than the third preset value.
Specifically, in this embodiment, the first preset value, the second preset value, and the third preset value only need to satisfy the above size relationship, and the specific numerical value may be adjusted according to an actual situation, which is not limited in this embodiment.
The controller 100 outputs corresponding control signals to the first dust removal module 200 and the second dust removal module 300 according to the level of the ambient air quality, and controls the working states of the first dust removal module 200 and the second dust removal module 300:
when the grade of the ambient air quality is excellent, the controller 100 controls the first dust removal module 200 to be closed and the second dust removal module 300 to be opened; when the level of the ambient air quality is general, the controller 100 controls the first dust removal module 200 to be opened and the second dust removal module 300 to be closed; when the level of the ambient air quality is poor, the controller 100 controls both the first dust removal module 200 and the second dust removal module 300 to be turned on.
In this embodiment, when the signal output end 110 corresponding to the controller 100 has a signal output, the dust removal module connected to the signal output end 110 is turned on to normally operate; when the signal output end 110 corresponding to the controller 100 has no signal output, the dust removal module connected to the signal output end 110 is closed, and the operation is stopped.
When the quality level of the ambient air is excellent, at this time, the concentration of PM2.5 particles in the air is low, a signal is output from the signal output terminal 110 connected to the second dust removal module 300 in the signal output port of the controller 100, and no signal is output from the signal output terminal connected to the first dust removal module 200, so that the second dust removal module 300 arranged at the air outlet is opened to perform normal operation; the first dust removal module 200 arranged at the air inlet is closed and stops working; at this time, air negative ions are formed at the air outlet through the second dust removal module 300, PM2.5 particles in the air can be formed by the negative ions through attraction and collision of the positive and negative ions as the air at the air outlet is blown to all places indoors, and the effect of further purifying the air is achieved.
When the quality level of the ambient air is general, at this time, the concentration of PM2.5 particles in the air is at a medium level, a signal is output from the signal output terminal 110 connected to the first dust removal module 200 in the signal output port of the controller 100, and no signal is output from the signal output terminal 110 connected to the second dust removal module 300, so that the first dust removal module 200 arranged at the air inlet is turned on to normally operate; the second dust removal module 300 arranged at the air outlet is closed and stops working; at this moment, air negative ions are formed at the air inlet through the first dust removal module 200, PM2.5 particles in the air are absorbed to the air inlet along with the suction force of the air inlet, and are attracted and collided with the negative ions to form molecular groups which sink to the ground, so that the number of the PM2.5 particles in the air is greatly reduced, and the air purification effect is achieved.
When the quality level of the ambient air is poor, at the moment, the concentration of PM2.5 particles in the air is high, then the signal output ends 110 connected with the first dust removal module 200 and the second dust removal module 300 in the signal output port of the controller 100 all output signals, and then the first dust removal module 200 arranged at the air inlet and the second dust removal module 300 arranged at the air outlet are all started to work normally; at this moment, air negative ions are formed at the air inlet and the air outlet through the first dust removal module 200, the bidirectional effect is achieved, the number of PM2.5 particles in the air is rapidly reduced, and the effect of timely and rapid air purification is achieved.
Further, the first dust removal module 200 and the second dust removal module 300 have the same structure. The first dust removal module 200 and the second dust removal module 300 both comprise a boosting bag 210 and a plurality of discharge electrodes 220, and only the arrangement positions of the discharge electrodes 220 are different; the discharge electrode 220 of the first dust removal module 200 is disposed at the air inlet, and the discharge electrode 220 of the second dust removal module 300 is disposed at the air outlet. The input end of the boosting package 210 is correspondingly connected with the signal output end 110 of the controller 100, and the output end of the boosting package 210 is connected with the plurality of discharge electrodes 220; the controller 100 controls the signal output of the signal output end 110 according to the level of the ambient air quality, and when the signal output end 110 of the controller 100 outputs a signal, the boosting package 210 converts the signal output by the controller 100 into a direct current negative high voltage signal and transmits the direct current negative high voltage signal to the discharge electrode 220 for discharging and dedusting.
In the present embodiment, the discharge electrode 220 is preferably made of a carbon material; the dc low voltage signal outputted from the signal output terminal 110 of the controller 100 is converted into a dc negative high voltage signal by the voltage boosting package 210, and then the dc negative high voltage signal is applied to the discharge electrode 220 to generate a high corona, and a large amount of electrons (e-) are emitted at a high speed, and the electrons cannot exist in the air for a long time (the existing electrons have a lifetime of only ns level), and are immediately captured by oxygen molecules (O2) in the air to form negative ions. The negative ions are attracted and collided with PM2.5 particles in the air to form molecular groups, and the molecular groups sink to fall to the ground, so that the dust removal effect is achieved; and the negative ions can reverse the bacterial protein in two stages, so that the viability of the bacteria is reduced or the bacteria is killed; the negative ions have high inactivation speed on bacteria and high inactivation rate, so the negative ions have inactivation effect on microorganisms, bacteria and viruses on the surfaces of air and articles.
Specifically, the boost pack 210 includes an inverting boost unit 211 and a rectifying and filtering unit 212, an input end of the inverting boost unit 211 is correspondingly connected to the signal output end 110 of the controller 100, an output end of the inverting boost unit 211 is connected to the rectifying and filtering unit 212, and an output end of the rectifying and filtering unit 212 is connected to the discharging electrode 220; the inverter boosting unit 211 converts the dc low voltage signal output by the controller 100 into an ac high voltage signal and transmits the ac high voltage signal to the rectifying and filtering unit 212, and the rectifying and filtering unit 212 converts the received ac high voltage signal into a dc negative high voltage signal and transmits the dc negative high voltage signal to the discharging electrode 220 for discharging and dedusting.
In this embodiment, the inverting and boosting unit 211 first inverts the dc low-voltage signal output by the controller 100 into an ac low-voltage signal, and then boosts the ac low-voltage signal into an ac high-voltage signal; then the alternating current high voltage signal is converted into a direct current negative high voltage signal through the rectifying and filtering unit 212 and is loaded on the discharge electrode 220.
Specifically, the inverting and boosting unit 211 includes a transformer T1, a first triode Q1, a first electrolytic capacitor Cap1, a first capacitor C1, a second capacitor C2, a first resistor R1, a second resistor R2, and a third resistor R3, a middle tap of a primary winding of the transformer T1 is connected to the signal output terminal 110 of the controller 100 as an input terminal of the inverting and boosting unit 211, and a secondary winding of the transformer T1 is connected to the input terminal of the rectifying and filtering unit 212 as an output terminal of the inverting and boosting unit 211; one end of a primary winding of the transformer T1 is connected to the positive electrode of the first electrolytic capacitor Cap1 and one end of a first resistor R1, the negative electrode of the first electrolytic capacitor Cap1 is connected to the other end of the first resistor R1 and one end of a second resistor R2, the other end of the second resistor R2 is connected to one end of the first capacitor C1 and the base of a first triode Q1, the collector of the first triode Q1 is connected to the other end of the primary winding of the transformer T1 and one end of a second capacitor C2, the emitter of the first triode Q1 is connected to the other end of the first capacitor C1, the other end of the second capacitor C2 and one end of a third resistor R3 and is grounded, and the other end of the third resistor R3 is connected to one end of a secondary winding of the transformer T1.
When the signal output terminal 110 of the controller 100 outputs a signal, the input dc low voltage signal charges the first electrolytic capacitor Cap1 and the first capacitor C1 through the upper half of the primary winding of the transformer T1, and charges the second capacitor C2 through the lower half of the primary winding of the transformer T1, and during the charging process, when the voltage across the first capacitor C1 does not reach the turn-on voltage of the base of the first transistor Q1, the first transistor Q1 is in the turn-off state. Therefore, during the charging process of the first electrolytic capacitor Cap1, the first capacitor C1 and the second capacitor C2, that is, when the dc low-voltage signal outputted from the signal output terminal 110 of the controller 100 is applied to the primary winding of the transformer T1, because the primary winding of the transformer T1 is equivalent to an inductor, according to the principle that the current on the inductor cannot suddenly change, an electromotive force with positive polarity is formed on the primary winding of the transformer T1, and accordingly, an electromotive force with positive polarity is formed on the secondary winding of the transformer T1 (the directions of the formed electromotive forces are different due to the difference between the same name terminals); when the voltage across the first capacitor C1 reaches the turn-on voltage of the base of the first triode Q1, the first triode Q1 is turned on, which is equivalent to short-circuiting the first capacitor C1 and the second capacitor C2, and since the voltages across the first capacitor C1 and the second capacitor C2 cannot suddenly change, the first electrolytic capacitor Cap1, the first capacitor C1 and the second capacitor C2 are discharged through the first resistor R1, the second resistor R2 and the primary winding of the transformer T1, so that an electromotive force with positive top and negative bottom is formed on the primary winding, and accordingly, an electromotive force with positive top and negative bottom or positive top and negative bottom is formed on the secondary winding of the transformer T1 (the same-name ends are different, the directions of the formed electromotive forces are different) until the voltage across the first capacitor C1 is smaller than the turn-on voltage of the base of the first triode Q1, and at this time, the first triode Q1 enters a turn-off state again; thus, a current signal having a periodic phase change, i.e., an ac signal is formed on the primary winding side of the transformer T1. In this embodiment, the number of turns of the primary winding of the transformer T1 is smaller than that of the secondary winding, and the specific turn ratio is not limited herein and can be adjusted according to actual requirements; the alternating current signal on the primary winding is boosted into an alternating current high-voltage signal after the number of turns of the transformer T1 is converted. The third resistor R3 functions as a current limiting in this embodiment.
Specifically, the rectifying and filtering unit 212 includes a first diode D1, a second diode D2, a third diode D3, a fourth diode D4, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, and a fourth resistor R4, a cathode of the first diode D1 is connected to an output end of the inverting and boosting unit 211 as an input end of the rectifying and filtering unit 212, one end of the third capacitor C3 is connected to another output end of the inverting and boosting unit 211 as another input end of the rectifying and filtering unit 212, and an anode of the first diode D1 is connected to another end of the third capacitor C3; the anode of the second diode D2 is connected with the cathode of the first diode D1 through the fourth capacitor C4, and the cathode of the second diode D2 is connected with the anode of the first diode D1; the anode of the third diode D3 is connected with the cathode of the second diode D2 through the fifth capacitor C5, and the cathode of the third diode D3 is connected with the anode of the second diode D2; an anode of the fourth diode D4 is connected to a cathode of the third diode D3 through the sixth capacitor C6, and a cathode of the fourth diode D4 is connected to an anode of the third diode D3; one end of the fourth resistor R4 is connected to the anode of the fourth diode D4, and the other end of the fourth resistor R4 is connected to the discharge electrode 220 as the output terminal of the rectifying and smoothing unit 212.
The first diode D1, the second diode D2, the third diode D3 and the fourth diode D4 form a rectifier bridge, the third capacitor C3, the fourth capacitor C4, the fifth capacitor C5 and the sixth capacitor C6 all have filtering functions, an alternating current high-voltage signal formed by a secondary winding of the transformer T1 is rectified into a direct current negative high-voltage signal after passing through the first diode D1, the second diode D2, the third diode D3 and the fourth diode D4, and is loaded onto the discharge electrode 220 after being limited by the fourth resistor R4 to generate high corona and form air negative ions.
Further, the boost package 210 further includes an EMI processing unit 213 disposed between the input terminal of the inverter boost unit 211 and the signal output terminal 110 of the controller 100, where the EMI processing unit 213 includes a fifth diode D5 and a seventh capacitor C7, an anode of the fifth diode D5 is connected to the signal output terminal 110 of the controller 100 as the input terminal of the EMI processing unit 213, a cathode of the fifth diode D5 is connected to one end of the seventh capacitor C7, and the other end of the seventh capacitor C7 is grounded; a common terminal between the cathode of the fifth diode D5 and the seventh capacitor C7 is connected to the input terminal of the inverter boosting unit 211 as the output terminal of the EMI processing unit 213.
The fifth diode D5 and the seventh capacitor C7 form a filter circuit, which can filter out high frequency signals in the line, and suppress interference of the high frequency signals, so that the dc negative high voltage signal generated by the boost packet 210 has no distortion effect.
Further, the voltage boost package 210 further includes a lightning strike protection unit 214 disposed between the EMI processing unit 213 and the input end of the inverter voltage boost unit 211, where the lightning strike protection unit 214 includes a first inductor L1 and a second electrolytic capacitor Cap2, one end of the first inductor L1 is connected to the output end of the EMI processing unit 213 as the input end of the lightning strike protection unit 214, the other end of the first inductor L1 is connected to the positive electrode of the second electrolytic capacitor Cap2, and the negative electrode of the second electrolytic capacitor Cap2 is grounded; the common terminal between the first inductor L1 and the second electrolytic capacitor Cap2 is connected to the input terminal of the inverter boosting unit 211 as the output terminal of the lightning protection unit 214.
According to the principle that the current on the inductor can not change suddenly, when the circuit is impacted by surge current, the electronic components in the inverting and boosting unit 211 and the rectifying and filtering unit 212 in the circuit can be well protected through the buffering effect of the first inductor L1, and the electronic components cannot be burnt out due to surge impact.
In particular, the air treatment device may be an air conditioner or an air motor.
In this embodiment, the air conditioner is further provided with a dust removal module with the air purification and dust removal functions on the basis of a traditional temperature regulation structure; the air machine is the machine that has ambient temperature regulatory function and air purification function concurrently, and the air purification function can adopt the purification filter screen to realize, and above-mentioned dust removal module can set up on temperature regulation function module, also can set up on air purification function module.
The technical scheme in the embodiment of the application at least has the following technical effects or advantages:
1. because the indoor or outdoor ambient air quality is monitored through the sensor unit, and the ambient air quality is transmitted to the controller 100, the controller 100 adjusts the working state of the first dust removal module and the second dust removal module in real time according to the grade of the ambient air quality, therefore, the dust removal device of the air treatment device is continuously started to work no matter what environment the dust removal device is in, the problem of short service life is solved, and then the dust removal device of the air treatment device is adjusted in real time along with the ambient air quality, and the service life of the dust removal device of the air treatment device is prolonged.
2. As the scheme of dividing the air quality grade by monitoring the concentration of PM2.5 particles in the ambient air is adopted, and the working states of the first dust removal module and the second dust removal module are controlled and adjusted in real time according to the grade of the ambient air quality, the problem of poor dust removal effect due to the fact that the dust removal function with the same strength is adopted when the air treatment device is used for treating the ambient air quality with different grades is solved, the air quality with different grades is further realized, the dust removal function with different strengths of the air treatment device is started, and the air treatment device achieves the effect of rapid dust removal.
3. The scheme of dividing the air quality grade into three grades by monitoring the concentration of PM2.5 particles in the ambient air is adopted, so that the problem of complex air quality grade division is solved, and the effect of quickly adjusting the working state of the dust removal module by monitoring the concentration of PM2.5 particles in the ambient air is realized.
4. Due to the fact that the scheme that the direct-current negative high-voltage signal is loaded on the discharge electrode 220 is adopted, the problem that the environment air quality is poor in the using process of the air treatment device is solved, the effect that the air is ionized to generate air negative ions to improve the environment air quality of the discharge electrode 220 under the direct-current negative high-voltage signal is achieved, and the concentration of tiny dust is reduced.
5. Because the scheme that the low-voltage direct-current signal output by the controller 100 is converted into the low-voltage alternating-current signal through the inversion boosting unit 211, then is converted into the high-voltage alternating-current signal, and finally is converted into the high-voltage direct-current signal through the rectification filtering unit 212 is adopted, the problem that the direct-current negative high-voltage signal is difficult to generate is solved, and then the direct-current negative high voltage can be generated through a simple circuit structure and is loaded on the discharge electrode 220 to quickly generate the air negative ions so as to improve the quality of the ambient air.
6. Due to the adoption of the scheme that the EMI processing unit 213 is arranged between the inversion boosting unit 211 and the controller 100, the problem of high-frequency signal interference in a circuit is solved, and the effects of quickly suppressing the high-frequency signal interference and generating a direct-current negative high-voltage signal without distortion are further realized.
7. Due to the scheme that the lightning stroke protection unit 214 is arranged between the EMI processing unit 213 and the inversion boosting unit 211, the problem that electronic components are easy to burn when a circuit is subjected to surge impact is solved, the influence of the surge impact is further suppressed, the electronic components in the circuit are protected, and the service life of the dust removal device is prolonged.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. An air treatment device is characterized by comprising a body, a sensor unit, a controller, a first dust removal module and a second dust removal module, wherein the sensor unit, the controller, the first dust removal module and the second dust removal module are arranged on the body; the sensor unit is used for monitoring the ambient air quality and transmitting an ambient air quality signal obtained by monitoring to the controller, and the controller controls the first dust removal module and the second dust removal module to be opened or closed according to the grade of the ambient air quality;
the sensor unit is used for monitoring the concentration of PM2.5 particles in ambient air, and the controller divides the quality of the ambient air into three levels, namely a good level, a normal level and a bad level according to the received concentration of the PM2.5 particles; when the grade of the ambient air quality is excellent, the controller controls the first dust removal module to be closed and the second dust removal module to be opened; when the grade of the ambient air quality is general, the controller controls the first dust removal module to be opened and the second dust removal module to be closed; when the grade of the ambient air quality is poor, the controller controls the first dust removal module and the second dust removal module to be started;
when the concentration of the PM2.5 particles is smaller than or equal to a first preset value, the controller determines that the level of the ambient air quality is excellent; when the concentration of the PM2.5 particles is greater than a second preset value and less than or equal to a third preset value, the controller determines that the grade of the ambient air quality is normal; when the concentration of the PM2.5 particles is greater than a third preset value, the controller determines that the level of the ambient air quality is poor; wherein the first preset value is smaller than the second preset value, and the second preset value is smaller than the third preset value;
the air treatment device is an air conditioner or an air machine, and the body has a temperature adjusting function.
2. The air treatment device of claim 1, wherein the first dust removal module and the second dust removal module are identical in structure, each of the first dust removal module and the second dust removal module comprises a boosting bag and a plurality of discharge electrodes, the discharge electrodes of the first dust removal module are arranged at the air inlet, and the discharge electrodes of the second dust removal module are arranged at the air outlet; the input end of the boosting package is correspondingly connected with the signal output end of the controller, and the output end of the boosting package is connected with the plurality of discharging electrodes; the controller controls the signal output of the signal output end according to the level of the ambient air quality, and when the signal output end of the controller outputs a signal, the boosting package converts the signal output by the controller into a direct-current negative high-voltage signal and transmits the direct-current negative high-voltage signal to the discharge electrode for discharging and dedusting.
3. The air processing device as claimed in claim 2, wherein the boost pack comprises an inverting boost unit and a rectifying and filtering unit, wherein the input end of the inverting boost unit is correspondingly connected with the signal output end of the controller, the output end of the inverting boost unit is connected with the rectifying and filtering unit, and the output end of the rectifying and filtering unit is connected with the discharge electrode; the inversion boosting unit converts a direct-current low-voltage signal output by the controller into an alternating-current high-voltage signal and transmits the alternating-current high-voltage signal to the rectification filtering unit, and the rectification filtering unit converts the received alternating-current high-voltage signal into a direct-current negative high-voltage signal and transmits the direct-current negative high-voltage signal to the discharge electrode for discharge and dust removal.
4. The air processing device as claimed in claim 3, wherein the inverting and boosting unit comprises a transformer, a first triode, a first electrolytic capacitor, a first capacitor, a second capacitor, a first resistor, a second resistor and a third resistor, a middle tap of a primary winding of the transformer is connected with the signal output end of the controller as an input end of the inverting and boosting unit, and a secondary winding of the transformer is connected with the input end of the rectifying and filtering unit as an output end of the inverting and boosting unit; one end of a primary winding of the transformer is connected with the anode of the first electrolytic capacitor and one end of the first resistor, the cathode of the first electrolytic capacitor is connected with the other end of the first resistor and one end of the second resistor, the other end of the second resistor is connected with one end of the first capacitor and the base of the first triode, the collector of the first triode is connected with the other end of the primary winding of the transformer and one end of the second capacitor, the emitter of the first triode is connected with the other end of the first capacitor, the other end of the second capacitor and one end of the third resistor and is grounded, and the other end of the third resistor is connected with one end of a secondary winding of the transformer.
5. The air processing device as claimed in claim 3, wherein the rectifying and filtering unit comprises a first diode, a second diode, a third diode, a fourth diode, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor and a fourth resistor, wherein a cathode of the first diode is connected with an output end of the inverting and boosting unit as one input end of the rectifying and filtering unit, one end of the third capacitor is connected with another output end of the inverting and boosting unit as the other input end of the rectifying and filtering unit, and an anode of the first diode is connected with the other end of the third capacitor; the anode of the second diode is connected with the cathode of the first diode through the fourth capacitor, and the cathode of the second diode is connected with the anode of the first diode; the anode of the third diode is connected with the cathode of the second diode through the fifth capacitor, and the cathode of the third diode is connected with the anode of the second diode; the anode of the fourth diode is connected with the cathode of the third diode through the sixth capacitor, and the cathode of the fourth diode is connected with the anode of the third diode; one end of the fourth resistor is connected with the anode of the fourth diode, and the other end of the fourth resistor is used as the output end of the rectifying and filtering unit and is connected with the discharge electrode.
6. The air processing apparatus of claim 3, wherein the boost package further comprises an EMI processing unit disposed between the input of the inverter boost unit and the signal output of the controller, the EMI processing unit comprising a fifth diode and a seventh capacitor, an anode of the fifth diode being connected as the input of the EMI processing unit to the signal output of the controller, a cathode of the fifth diode being connected to one end of the seventh capacitor, and the other end of the seventh capacitor being connected to ground; and a common end between the cathode of the fifth diode and the seventh capacitor is used as an output end of the EMI processing unit and is connected with an input end of the inversion boosting unit.
7. The air processing apparatus of claim 6, wherein the boost package further comprises a lightning strike protection unit disposed between the EMI processing unit and the input of the inverter boost unit, the lightning strike protection unit comprising a first inductor and a second electrolytic capacitor, one end of the first inductor being connected to the output of the EMI processing unit as the input of the lightning strike protection unit, the other end of the first inductor being connected to the positive electrode of the second electrolytic capacitor, the negative electrode of the second electrolytic capacitor being grounded; and a common end between the first inductor and the second electrolytic capacitor is used as an output end of the lightning stroke protection unit and is connected with an input end of the inversion boosting unit.
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| CN112443931B (en) * | 2019-08-29 | 2021-11-16 | 珠海格力电器股份有限公司 | Control method and system applied to dehumidifier |
| CN111928363B (en) * | 2020-07-15 | 2022-07-01 | 中科瑞城设计有限公司 | Indoor air quality automatic detection purifies adjusting device based on healthy building |
| CN114326873A (en) * | 2021-12-10 | 2022-04-12 | 北京小米移动软件有限公司 | Device control method and apparatus, environment adjusting device, and storage medium |
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