CN108448383B - Anion generator and air conditioner - Google Patents
Anion generator and air conditioner Download PDFInfo
- Publication number
- CN108448383B CN108448383B CN201810630424.4A CN201810630424A CN108448383B CN 108448383 B CN108448383 B CN 108448383B CN 201810630424 A CN201810630424 A CN 201810630424A CN 108448383 B CN108448383 B CN 108448383B
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- negative ion
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- output end
- ion generator
- optical
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- 150000001450 anions Chemical class 0.000 title description 24
- 150000002500 ions Chemical class 0.000 claims abstract description 192
- 238000009792 diffusion process Methods 0.000 claims abstract description 5
- 230000003287 optical effect Effects 0.000 claims description 66
- 239000002245 particle Substances 0.000 claims description 46
- 230000005855 radiation Effects 0.000 claims description 25
- 238000001514 detection method Methods 0.000 claims description 23
- 230000000903 blocking effect Effects 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 238000004140 cleaning Methods 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 238000000746 purification Methods 0.000 abstract description 24
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 14
- 230000003068 static effect Effects 0.000 description 10
- 239000000428 dust Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 230000004044 response Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 230000005684 electric field Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 5
- 238000004887 air purification Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 244000052616 bacterial pathogen Species 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000000862 absorption spectrum Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 241000894007 species Species 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T23/00—Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
-
- 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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T19/00—Devices providing for corona discharge
- H01T19/04—Devices providing for corona discharge having pointed electrodes
Abstract
The invention provides a negative ion generator and an air conditioner, wherein the negative ion generator comprises: the negative ion output end is used for ionizing air to generate negative ions; the negative ion guide end can be electrically connected to the ground wire and is arranged adjacent to the negative ion output end for conducting negative ion drainage; the switch control assembly is connected in series between the negative ion guide end and the ground wire and is used for conducting or disconnecting a series circuit between the negative ion guide end and the ground wire, wherein when the series circuit is conducted, negative ions flow to the negative ion guide end from the negative ion output end and are released in a directional manner, and when the series circuit is disconnected, the negative ions are released in a non-directional manner from the negative ion output end. According to the technical scheme, the influence of non-directional diffusion of negative ions on a user is reduced, the diffusion mode of the negative ions is effectively adjusted according to the concentration of environmental granularity or the concentration of harmful gases or the purification time, the purification efficiency and reliability of the negative ion generator are improved, and the failure rate is reduced.
Description
Technical Field
The invention relates to the technical field of air purification, in particular to a negative ion generator and an air conditioner.
Background
Because the requirements of people on indoor air quality are continuously improved, the negative ion generator is one of the mainstream purification equipment because of low power consumption, low noise, low price and high purification efficiency.
In the related art, the anion generator usually adopts a corona discharge method to generate anions, and as the anions can charge dust, germs, cells, pollen, flock and other particles in the indoor environment, the charged particles are adsorbed by the discharge integrated device, the purifying effect is far greater than that of adopting filtering type purifying equipment and ozone type purifying equipment, and the specific two main stream electrode structures and defects are as follows:
(1) By utilizing the uneven electric field formed between the needle electrode (negative high voltage potential) and the flat plate electrode (zero potential), the flowing air is ionized, positive ions move to the needle electrode, negative ions move to the flat plate electrode and are blown into the indoor environment by the blower, but the flow guiding effect of the flat plate electrode on the negative ions can reduce the concentration of the negative ions and the purifying effect.
(2) Only needle electrodes are arranged, but flat plate electrodes are not arranged, an uneven electric field is formed between the needle electrodes and the ground, and although the purification efficiency is high, negative ions can be scattered in an unoriented manner into the indoor environment, a large amount of static electricity can be generated by the negative ion generator body, even users close to the negative ion generator body can be electrically injured, and serious potential safety hazards exist.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art or related art.
To this end, an object of the present invention is to provide a negative ion generator.
Another object of the present invention is to provide an air conditioner.
In order to achieve the above object, according to an embodiment of a first aspect of the present invention, there is provided a negative ion generator including: the negative ion output end is used for ionizing air to generate negative ions; the negative ion guide end can be electrically connected to the ground wire and is arranged adjacent to the negative ion output end for conducting negative ion drainage; the switch control assembly is connected in series between the negative ion guide end and the ground wire and is used for conducting or disconnecting a series circuit between the negative ion guide end and the ground wire, wherein when the series circuit is conducted, negative ions flow to the negative ion guide end from the negative ion output end and are released in a directional manner, and when the series circuit is disconnected, the negative ions are released in a non-directional manner from the negative ion output end.
In the technical scheme, the switch control assembly is connected between the negative ion guide end and the ground wire in series, so that whether the series connection circuit is conducted or not can be timely adjusted according to working condition environments or purification time, namely whether an uneven electric field is formed between the negative ion output end and the negative ion guide end or not, namely, the negative ion generator provided by the invention has two negative ion purification modes, when the series connection circuit is conducted, negative ions flow to the negative ion guide end from the negative ion output end and are directionally released, the electrostatic effect of the negative ion generator can be effectively reduced, the potential safety hazard to users and the failure rate of devices are reduced, and when the series connection circuit is disconnected, the negative ions are not directionally diffused and released from the negative ion output end, so that the loss and the flow of the negative ions are reduced, and the purification efficiency to the indoor environment is improved.
Wherein, the negative ion output end is applied with a negative high voltage signal, the negative ion guide end is zero potential when the serial circuit is conducted, the power and the wind speed of the negative ion generator are two factors influencing the concentration of negative ions, the wind speed of the air supply is generally lower than 10 m/s, and the number of the generated ions is 5 multiplied by 10 when the input power is 50 watts 10 From about one second to about 5X 10 11 And each second.
In the above technical solution, preferably, the method further includes: and the air quality detection assembly is electrically connected to the switch control assembly and is used for detecting the specified gas concentration and/or the specified gas type in the indoor environment to be purified, and the switch control assembly is used for switching on or switching off the serial circuit according to the specified gas concentration and/or the specified gas type.
In this technical scheme, through setting up air quality detection subassembly electricity and being connected to switch control assembly to detect appointed gas concentration and/or appointed gas kind in the indoor environment, on the one hand, when detecting that appointed gas concentration is higher or appointed gas kind is harmful to human health, can set up the serial line disconnection, in order to improve the output efficiency of anion, and then improve the purification efficiency to the indoor environment, on the other hand, when the appointed gas concentration in the indoor environment is lower, set up the serial line and switch on, so that the anion flows to the anion guide end, namely reduce anion generator's static effect through sacrificing partial anion, simultaneously, remaining partial anion still can blow to the indoor environment and purify the effect.
It is worth specifically pointing out that the specified gas includes not only gas molecules but also smoke, germs, spores, pollen, fuzz and other particulate molecules, and in order to improve the reliability of the negative ion generator, the kind of the specified gas needs to be determined to determine the purification requirement of the indoor environment.
In the above technical solution, preferably, the air quality detection assembly includes: the optical transmitter and the optical detector are arranged in a way that the transmitting end of the optical transmitter is opposite to the detecting end of the optical detector, the transmitting end of the optical transmitter outputs optical radiation with specified wavelength, an airflow channel is arranged between the optical transmitter and the optical detector and is used for circulating gas in indoor environment, the optical radiation enters the optical detector through the airflow channel, and the optical detector determines specified gas type and/or specified gas concentration according to the transmissivity of the optical radiation.
In the technical scheme, the gas in the indoor environment is detected through the optical emitter and the optical detector, the specific gas type and/or the specific gas concentration are/is determined according to the transmissivity of the optical radiation, on one hand, the specific absorption of the gas molecules to the optical radiation with the specific wavelength exists, the type of the gas molecules is determined according to the absorption spectrum, the concentration of the gas molecules is determined according to the transmissivity and the lambert law, on the other hand, the scattering and diffraction occur when the optical radiation propagates to the particle molecules, and the transmissivity of the optical radiation is influenced similarly, so that the length-diameter ratio of the particle molecules and the type of the particle molecules can be determined indirectly according to the transmissivity.
In the above technical solution, preferably, when the optical emitter is an infrared generator, the optical detector is a corresponding infrared detector.
In this technical scheme, through setting up corresponding infrared generator and infrared detector and detecting appointed gas concentration and/or appointed gas kind, on the one hand, infrared detector's with low costs, and infrared radiation is little to user's healthy influence, on the other hand, infrared detector's detection precision is high, can detect microvolt level signal and nano volt level signal, and possesses reliability height and response time's advantage.
The infrared detector can be a thermopile infrared detector, a pyroelectric infrared detector or a photon infrared detector.
In the above technical solution, preferably, when the optical emitter is a laser generator, the optical detector is a corresponding laser detector.
In the technical scheme, the specified gas concentration and/or the specified gas type are/is detected by arranging the corresponding laser generator and the corresponding laser detector, on one hand, the wavelength of the laser radiation is short and the energy is high, so that the interference by environmental noise is small, the detection precision is extremely high, on the other hand, the propagation speed of the laser radiation is high, the laser radiation can be used along with the operation, and the operation is simple and convenient and the response time is short.
In the above technical solution, preferably, the air quality detection assembly includes: the image particle analysis assembly comprises a digital CCD lens, an airflow channel and an optical microscope, wherein the optical microscope is arranged at the front end of the digital CCD lens and is used for amplifying particle molecules in the airflow channel, the digital CCD lens is used for collecting the amplified images of the particle molecules and analyzing the images of the particle molecules to determine the distribution and/or the length-diameter ratio of the particle molecules, the distribution of the particle molecules corresponds to the specified gas concentration, and the length-diameter ratio of the particle molecules corresponds to the specified gas type.
In the technical scheme, the image particle analysis component is arranged to detect the concentration and/or the type of the specified gas, so that the detection result is more visual and accurate, the type of the particle is determined according to the length-diameter ratio of the particle molecules, and the concentration of the particle molecules is determined according to the distribution of the particle molecules.
Specifically, for PM2.5 dust particles (i.e., inhalable particles with a size less than 2.25 μm) which are the most focused in the society of today, the concentration of PM2.5 dust particles in the indoor environment can be determined by collecting images of the particle molecules and combining with an image processing technology, when the concentration of PM2.5 dust particles is high, for example, when the air index is detected to be higher than 100, the serial circuit is controlled to be disconnected so as to improve the generation efficiency of anions and further improve the purification efficiency of anions, when the air index is detected to be lower than or equal to 100, the serial circuit is controlled to be conducted so as to control the leading end of anions to conduct drainage on part of anions, thereby reducing static electricity of the anion generator body, and meanwhile, the rest anions are blown to the indoor environment for purification.
In the above technical solution, preferably, the method further includes: the timing assembly is connected to the switch control assembly and the negative ion output end and is used for detecting the output duration of negative ions so that the switch control assembly can conduct or disconnect the series circuit according to the magnitude relation between the output duration and the preset duration.
In the technical scheme, the timing component is arranged to record the output time of the negative ions, namely, the serial circuit is conducted or disconnected according to the magnitude relation between the output time and the preset time, when the output time is smaller than or equal to the preset time, the serial circuit is controlled to be disconnected, so that the negative ion output quantity is improved, the purification efficiency is improved, when the output time is longer than the preset time, the serial circuit is controlled to be conducted, part of negative ions are led to the negative ion guide end and neutralize the static charge accumulated on the negative ion generator body, the potential safety hazard of the components and the devices to the user due to the failure rate and the static effect is reduced, and meanwhile, the residual negative ions are blown to the indoor environment to continue air purification so as to meet the purification requirement of the user.
In the above technical solution, preferably, the method further includes: the negative high-voltage driving assembly comprises a pulse generating module, an overvoltage current limiting module, a through alternating current blocking module and a rectifying and filtering module which are sequentially connected, wherein the pulse generating module is used for generating a high-frequency pulse signal, the high-frequency pulse signal is subjected to voltage limiting treatment and/or current limiting treatment through the overvoltage current limiting module, the high-frequency pulse signal is boosted into an alternating current high-voltage signal through the alternating current blocking module, the alternating current high-voltage signal is converted into direct current negative high-voltage after being treated through the rectifying and filtering module, the output end of the rectifying and filtering module is connected to an anion output end, the anion output end can generate high corona, and the high corona ionizes air to generate anions.
In this technical scheme, through setting up pulse generation module, overvoltage current limiting module, through alternating current blocking module and rectification filter module that establish ties in proper order as negative high voltage drive assembly, can provide reliable and stable negative high voltage signal and apply to the anion output, because high corona carries out ionization to the air, can make harmful gas molecule and the particulate molecule in the air carry negative charge and be retrieved and adsorb, wherein, the voltage of high frequency pulse signal is 50kV generally, and the frequency of pulse signal is 50Hz.
In the above technical solution, preferably, the switch control assembly includes: a controller, in communication with the air quality detection assembly, for determining a specified gas species and/or a specified gas concentration; the control end of the electric control switch is communicated with the instruction output end of the controller, and two conduction interfaces of the electric control switch are connected in series between the negative ion guide end and the ground wire; the first end of the voltage dividing resistor is connected to the appointed output end, and the second end of the voltage dividing resistor is connected to the control end of the electric control switch and used for performing overvoltage protection on the electric control switch; and the first end of the shunt resistor is connected to the second end of the divider resistor, and the second end of the shunt resistor is connected to the ground wire and used for overcurrent protection of the electric control switch.
In the technical scheme, the controller is communicated with the air quality detection assembly to generate a control instruction for the electric control switch according to the specified gas type and/or the specified gas concentration, so that the series circuit can be timely and effectively controlled to be in a conducting state or a disconnecting state, overvoltage protection and overcurrent protection for the electric control switch are respectively realized by arranging the voltage dividing resistor and the shunt resistor, the failure rate of the electric control switch is reduced, and therefore, the failure rate of the anion generator is further reduced.
In the above technical solution, preferably, the electric control switch includes at least one of a relay, a power switch, a point contact switch and a paddle switch.
In the technical scheme, the relay is a small-power control high-power switch, high voltage resistance and high reliability are realized, the power switch can be a triode, a MOS (Metal Oxide Semiconductor )) tube, an IGBT (Insulated Gate Bipolar Translator, insulated gate transistor) and other semiconductor switches, the response time is fast, the power consumption is low, the point contact type switch and the pulling sheet switch belong to mechanical switches, and the hardware reliability is higher.
According to an embodiment of a second aspect of the present invention, there is provided an air conditioner including: an indoor unit; the negative ion generator defined in any one of the above claims is provided in a casing of the indoor unit.
In this technical solution, the advantages of the invention will be given in the following description, partly as will become apparent from the following description, or as will be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 shows a schematic diagram of a negative ion generator according to one embodiment of the invention;
fig. 2 shows a schematic diagram of a negative ion generator according to another embodiment of the invention;
fig. 3 shows a schematic diagram of a negative ion generator according to another embodiment of the invention;
FIG. 4 shows a schematic flow chart of an operation control method according to one embodiment of the invention;
fig. 5 shows a schematic flow chart of an operation control method according to another embodiment of the present invention.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.
Fig. 1 shows a schematic view of a negative ion generator in an air conditioner according to an embodiment of the present invention.
Fig. 2 shows a schematic view of a negative ion generator in an air conditioner according to another embodiment of the present invention.
Fig. 3 shows a schematic diagram of a negative ion generator according to another embodiment of the present invention.
As shown in fig. 1, 2 and 3, the negative ion generator 100 according to an embodiment of the present invention includes: a negative ion output 102 for ionizing air to produce negative ions 104; the negative ion output end 106 can be electrically connected to the ground wire and is arranged adjacent to the negative ion output end 102 for conducting drainage to the negative ions 104; the switch control component is connected in series between the negative ion output end 106 and the ground wire, and is used for switching on or switching off a series circuit between the negative ion output end 106 and the ground wire, wherein when the series circuit is switched on, negative ions 104 flow from the negative ion output end 102 to the negative ion output end 106 and are directionally released, and when the series circuit is switched off, the negative ions 104 are released by the negative ion output end 102 without directional diffusion.
In this technical solution, by connecting the switch control component in series between the negative ion output end 106 and the ground, whether the serial connection line is conducted or not can be timely adjusted according to the working condition environment or the purifying time length, that is, whether an uneven electric field is formed between the negative ion output end 102 and the negative ion output end 106, that is, the negative ion generator 100 according to the present invention has two negative ion purifying modes, when the serial connection line is conducted, the negative ion 104 flows from the negative ion output end 102 to the negative ion output end 106 and is directionally released, so that the electrostatic effect of the negative ion generator 100 can be effectively reduced, the potential safety hazard to the user and the failure rate of the device can be reduced, and when the serial connection line is disconnected, the negative ion 104 is released by the negative ion output end 102 in a non-directional diffusion manner, so that the loss and the flow of the negative ion 104 can be reduced, and the purifying efficiency to the indoor environment can be improved.
Wherein the negative ion output end 102 is applied with a negative high voltage signal, the negative ion output end 106 is zero potential when the serial circuit is conducted, the power and wind speed of the negative ion generator 100 are two factors influencing the concentration of the negative ions 104, the wind speed of the air supply is generally set to be lower than 10 m/s, and the number of the generated ions is 5×10 when the input power is 50 watts 10 From about one second to about 5X 10 11 And each second.
In the above technical solution, preferably, the method further includes: and the air quality detection assembly is electrically connected to the switch control assembly and is used for detecting the specified gas concentration and/or the specified gas type in the indoor environment to be purified, and the switch control assembly is used for switching on or switching off the serial circuit according to the specified gas concentration and/or the specified gas type.
In this technical solution, by setting the air quality detection component to be electrically connected to the switch control component to detect the specified gas concentration and/or the specified gas type in the indoor environment, on one hand, when the specified gas concentration is higher or the specified gas type is harmful to the health of the human body, the serial line can be set to be disconnected, so as to improve the output efficiency of the negative ions 104, and further improve the purification efficiency of the indoor environment, on the other hand, when the specified gas concentration in the indoor environment is lower, the serial line is set to be conducted, so that the negative ions 104 flow to the negative ion output end 106, that is, the static effect of the negative ion generator 100 is reduced by sacrificing part of the negative ions 104, and meanwhile, the rest part of the negative ions 104 can still be blown to the indoor environment for purification.
It should be noted that the specified gas includes not only gas molecules but also particulate molecules such as smoke, germs, cells, pollen, and filings, and in order to improve the reliability of the negative ion generator 100, it is also necessary to determine the kind of the specified gas to determine the purification requirement of the indoor environment.
In the above technical solution, preferably, the air quality detection assembly includes: the optical transmitter and the optical detector are arranged in a way that the transmitting end of the optical transmitter is opposite to the detecting end of the optical detector, the transmitting end of the optical transmitter outputs optical radiation with specified wavelength, an airflow channel is arranged between the optical transmitter and the optical detector and is used for circulating gas in indoor environment, the optical radiation enters the optical detector through the airflow channel, and the optical detector determines specified gas type and/or specified gas concentration according to the transmissivity of the optical radiation.
In the technical scheme, the gas in the indoor environment is detected through the optical emitter and the optical detector, the specific gas type and/or the specific gas concentration are/is determined according to the transmissivity of the optical radiation, on one hand, the specific absorption of the gas molecules to the optical radiation with the specific wavelength exists, the type of the gas molecules is determined according to the absorption spectrum, the concentration of the gas molecules is determined according to the transmissivity and the lambert law, on the other hand, the scattering and diffraction occur when the optical radiation propagates to the particle molecules, and the transmissivity of the optical radiation is influenced similarly, so that the length-diameter ratio of the particle molecules and the type of the particle molecules can be determined indirectly according to the transmissivity.
In the above technical solution, preferably, when the optical emitter is an infrared generator, the optical detector is a corresponding infrared detector.
In this technical scheme, through setting up corresponding infrared generator and infrared detector and detecting appointed gas concentration and/or appointed gas kind, on the one hand, infrared detector's with low costs, and infrared radiation is little to user's healthy influence, on the other hand, infrared detector's detection precision is high, can detect microvolt level signal and nano volt level signal, and possesses reliability height and response time's advantage.
The infrared detector can be a thermopile infrared detector, a pyroelectric infrared detector or a photon infrared detector.
In the above technical solution, preferably, when the optical emitter is a laser generator, the optical detector is a corresponding laser detector.
In the technical scheme, the specified gas concentration and/or the specified gas type are/is detected by arranging the corresponding laser generator and the corresponding laser detector, on one hand, the wavelength of the laser radiation is short and the energy is high, so that the interference by environmental noise is small, the detection precision is extremely high, on the other hand, the propagation speed of the laser radiation is high, the laser radiation can be used along with the operation, and the operation is simple and convenient and the response time is short.
In the above technical solution, preferably, the air quality detection assembly includes: the image particle analysis assembly comprises a digital CCD lens, an airflow channel and an optical microscope, wherein the optical microscope is arranged at the front end of the digital CCD lens and is used for amplifying particle molecules in the airflow channel, the digital CCD lens is used for collecting the amplified images of the particle molecules and analyzing the images of the particle molecules to determine the distribution and/or the length-diameter ratio of the particle molecules, the distribution of the particle molecules corresponds to the specified gas concentration, and the length-diameter ratio of the particle molecules corresponds to the specified gas type.
In the technical scheme, the image particle analysis component is arranged to detect the concentration and/or the type of the specified gas, so that the detection result is more visual and accurate, the type of the particle is determined according to the length-diameter ratio of the particle molecules, and the concentration of the particle molecules is determined according to the distribution of the particle molecules.
Specifically, for PM2.5 dust particles (i.e., inhalable particles having a size less than 2.25 μm) which are the most of the concerns in the society of today, the concentration of PM2.5 dust particles in the indoor environment can be determined by capturing an image of the particulate molecules and combining with an image processing technique, when the concentration of PM2.5 dust particles is high, for example, when the air index is detected to be higher than 100, the serial line is controlled to be disconnected so as to improve the generation efficiency of the negative ions 104, and further improve the purification efficiency of the negative ions 104, and when the air index is detected to be lower than or equal to 100, the serial line is controlled to be conducted so as to control the negative ion output end 106 to drain a part of the negative ions 104, so as to reduce the static electricity of the body of the negative ion generator 100, and at the same time, the rest of the negative ions 104 are blown to the indoor environment for purification.
In the above technical solution, preferably, the method further includes: the timing component is connected to the switch control component and the negative ion output end 102 and is used for detecting the output duration of the negative ions 104 so that the switch control component can conduct or break the series circuit according to the magnitude relation between the output duration and the preset duration.
In the technical scheme, the timing component is set to record the output time of the negative ions 104, namely, the serial circuit is conducted or disconnected according to the size relation between the output time and the preset time, so that when the output time is smaller than or equal to the preset time, the serial circuit is controlled to be disconnected, the output quantity of the negative ions 104 is improved, the purification efficiency is improved, when the output time is longer than the preset time, the serial circuit is controlled to be conducted, part of negative ions 104 are led to the negative ion output end 106 and neutralize the static charge accumulated on the body of the negative ion generator 100, the potential safety hazards of the components and the components to the user due to the failure rate and the static effect are reduced, and meanwhile, the rest of negative ions 104 are blown into the indoor environment to continue air purification, so that the purification requirements of the user are met.
In the above technical solution, preferably, the method further includes: the negative high-voltage driving assembly 110, the negative high-voltage driving assembly 110 includes pulse generation module, overvoltage current limiting module, through alternating current blocking module and rectification filter module that connect gradually, the pulse generation module is used for generating high frequency pulse signal, after the high frequency pulse signal carries out voltage limiting treatment and/or current limiting treatment through overvoltage current limiting module, the alternating current high voltage signal is converted into direct current negative high voltage after being processed by the alternating current blocking module, wherein, the output of rectification filter module is connected to negative ion output 102, negative ion output 102 can produce high corona, high corona ionization air is in order to produce anion 104.
In this technical scheme, through setting up pulse generation module, excessive pressure current limiting module, logical blocking module and rectification filter module that establish ties in proper order as negative high voltage drive assembly 110, can provide reliable and stable negative high voltage signal and apply to anion output 102, because high corona carries out ionization to the air, can make harmful gas molecule and the particulate molecule in the air carry negative charge and be retrieved and adsorb, wherein, high frequency pulse signal's voltage is 50kV generally, pulse signal's frequency is 50Hz.
The input end of the negative high voltage driving component 110 is connected to the dc voltage stabilizing source VCC and the ground GND.
In the above technical solution, preferably, the switch control assembly includes: a controller CON, which is communicated with the air quality detection assembly and is used for determining a specified gas type and/or a specified gas concentration; the control end P1 of the electric control switch 108 is communicated with the instruction output end of the controller CON, and two conduction interfaces (a first interface P2 and a second interface P3 shown in figures 1 and 2) of the electric control switch 108 are connected in series between the negative ion output end 106 and the ground wire; the first end of the voltage dividing resistor (the first voltage dividing resistor R1 and the second voltage dividing resistor R3 shown in fig. 1 and 2) is connected to the instruction output end, and the second end of the voltage dividing resistor (the first voltage dividing resistor R1 and the second voltage dividing resistor R3 shown in fig. 1 and 2) is connected to the control end P1 of the electric control switch 108 for overvoltage protection of the electric control switch 108; and a shunt resistor R2, wherein a first end of the shunt resistor R2 is connected to a second end of a voltage dividing resistor (such as the first voltage dividing resistor R1 and the second voltage dividing resistor R3 shown in fig. 1 and 2), and a second end of the shunt resistor R2 is connected to a ground line for performing overcurrent protection on the electric control switch 108.
In this technical solution, the controller CON is configured to be connected to the air quality detection assembly, so as to generate a control instruction for the electric control switch 108 according to the specified gas type and/or the specified gas concentration, so that the series circuit can be effectively controlled to be in a conducting state or a disconnecting state in time, and through the arrangement of the voltage dividing resistors (such as the first voltage dividing resistor R1 and the second voltage dividing resistor R3 shown in fig. 1 and fig. 2), overvoltage protection and overcurrent protection for the electric control switch 108 are respectively implemented, and the failure rate of the electric control switch 108 is reduced, so that the failure rate of the negative ion generator 100 is further reduced.
In the above solution, the electronically controlled switch 108 preferably includes at least one of a relay, a power switch, a point contact switch, and a paddle switch.
In the technical scheme, the relay is a small-power control high-power switch, high voltage resistance and high reliability are realized, the power switch can be a triode, a MOS (Metal Oxide Semiconductor )) tube, an IGBT (Insulated Gate Bipolar Translator, insulated gate transistor) and other semiconductor switches, the response time is fast, the power consumption is low, the point contact type switch and the pulling sheet switch belong to mechanical switches, and the hardware reliability is higher.
Embodiment two:
as shown in fig. 2, when an NPN-type triode is provided as the electronic control switch 108 in the negative ion generator 100, a collector of the NPN-type triode is connected to the second voltage dividing resistor R3, an emitter of the NPN-type triode is connected to the ground, a base of the NPN-type triode is connected to the first voltage dividing resistor R1 as the control terminal P1, and in order to prevent the NPN-type triode from being reversely broken down, a shunt resistor R2 is connected in parallel between the emitter and the base.
Embodiment III:
as shown in fig. 3, the negative ion generator according to the embodiment of the present invention includes a power input part 202, a negative high voltage driving assembly 110, a negative ion output part 204, and a ground line 206, wherein the power input part 202 provides a dc voltage stabilizing source VCC and a ground line GND to the negative high voltage driving assembly 110, the negative high voltage driving assembly 110 outputs the dc voltage stabilizing signal as a negative high voltage signal and applies the negative high voltage signal to the negative ion output end 102 of the negative ion output part 204, and regulates whether the negative ion guide end 106 is grounded through a switch control assembly, and in addition, in order to reduce static electricity accumulation of the negative high voltage driving assembly 110, the ground line 206 is provided at the outer case thereof to reduce a hardware failure rate of the negative high voltage driving assembly 110.
Embodiment four:
fig. 4 shows a schematic flow chart of an operation control method according to an embodiment of the present invention.
As shown in fig. 4, the operation control method according to an embodiment of the present invention includes: step S402, detecting a specified gas concentration and/or a specified gas type of the indoor environment; step S404, if the designated gas concentration is greater than or equal to the preset gas concentration, the series circuit is controlled to be disconnected; step S406, controlling the negative ion output end to ionize the air and diffuse the air in a non-directional way to the indoor environment; step S408, if the designated gas concentration is less than the preset gas concentration, controlling the series circuit to be conducted; step S410, controlling the negative ion output end to ionize the air, and the negative ion guide end guides the negative ions to directionally diffuse to the indoor environment.
Fifth embodiment:
fig. 5 shows a schematic flow chart of an operation control method according to another embodiment of the present invention.
As shown in fig. 5, the operation control method according to an embodiment of the present invention includes: step S502, detecting the output duration of negative ions; step S504, if the output time length is greater than or equal to the preset output time length, the series circuit is controlled to be disconnected; step S506, controlling the negative ion output end to ionize the air and diffuse the air in a non-directional way to the indoor environment; step S508, if the output time length is less than the preset output time length, controlling the conduction of the serial circuit; and S510, controlling the negative ion output end to ionize the air, and guiding the negative ions by the negative ion guide end so as to directionally diffuse the negative ions to the indoor environment.
The technical scheme of the invention is explained in detail by combining the drawings, and considering how to realize negative ion air purification and reduce the hardware fault rate and potential safety hazard which are proposed by the related technology, the invention provides the negative ion generator and the air conditioner, whether a series circuit is conducted or not can be timely adjusted according to working condition environment or purification time length by connecting a switch control component between a negative ion guide end and a ground wire, namely whether an uneven electric field is formed between a negative ion output end and the negative ion guide end or not, namely the negative ion generator provided by the invention has two negative ion purification modes, when the series circuit is conducted, negative ions flow from the negative ion output end to the negative ion guide end and are directionally released, so that the electrostatic effect of the negative ion generator can be effectively reduced, the potential safety hazard and the device fault rate for users are reduced, when the series circuit is disconnected, the loss and flow of the negative ions can be reduced, and the purification efficiency for indoor environment is improved.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A negative ion generator, comprising:
the negative ion output end is used for ionizing air to generate negative ions;
the negative ion guide end can be electrically connected to a ground wire and is arranged adjacent to the negative ion output end for conducting drainage on the negative ions;
the switch control component is connected in series between the negative ion guide end and the ground wire and is used for switching on or switching off a series circuit between the negative ion guide end and the ground wire,
when the serial circuit is conducted, the negative ions flow from the negative ion output end to the negative ion guide end and are released directionally, and when the serial circuit is disconnected, the negative ions are released by the negative ion output end in a non-directional diffusion way;
the switch control assembly includes:
a controller, in communication with the air quality detection assembly, for determining a specified gas species and/or a specified gas concentration;
the control end of the electric control switch is communicated with the instruction output end of the controller, and two conduction interfaces of the electric control switch are connected in series between the negative ion guide end and the ground wire;
the first end of the divider resistor is connected to the instruction output end, and the second end of the divider resistor is connected to the control end of the electric control switch and used for overvoltage protection of the electric control switch;
the first end of the shunt resistor is connected to the second end of the divider resistor, and the second end of the shunt resistor is connected to the ground wire and used for overcurrent protection of the electric control switch;
the electric control switch comprises at least one of a relay, a power switch, a point contact switch and a pulling sheet switch.
2. The negative ion generator of claim 1, wherein the negative ion generator comprises a negative ion generator,
the air quality detection assembly is electrically connected to the switch control assembly and is used for detecting a specified gas concentration and/or a specified gas type in an indoor environment to be purified, and the switch control assembly is used for switching on or switching off the serial circuit according to the specified gas concentration and/or the specified gas type.
3. The negative ion generator of claim 2, wherein the air quality detection assembly comprises:
the optical transmitter and the optical detector, the transmitting end of optical transmitter with the detection end of optical detector is relative to be set up, the transmitting end of optical transmitter exports the optical radiation of appointed wavelength, optical transmitter with be equipped with the air current passageway between the optical detector, the air current passageway is arranged in the circulation indoor environment's gas, optical radiation passes through the air current passageway gets into optical detector, optical detector is according to optical radiation's transmissivity confirms appointed gaseous kind and/or appointed gas concentration.
4. The negative ion generator of claim 3, wherein the negative ion generator comprises a negative ion generator,
when the optical emitter is an infrared generator, the optical detector is a corresponding infrared detector.
5. The negative ion generator of claim 3, wherein the negative ion generator comprises a negative ion generator,
when the optical emitter is a laser generator, the optical detector is a corresponding laser detector.
6. The negative ion generator of claim 2, wherein the air quality detection assembly comprises:
the image particle analysis component comprises a digital CCD lens, an air flow channel and an optical microscope, wherein the optical microscope is arranged at the front end of the digital CCD lens and is used for amplifying the particle molecules in the air flow channel, the digital CCD lens is used for collecting the image of the amplified particle molecules and analyzing the image of the particle molecules to determine the distribution and/or the length-diameter ratio of the particle molecules,
wherein the distribution of the particulate molecules corresponds to the specified gas concentration and the aspect ratio of the particulate molecules corresponds to the specified gas species.
7. The negative ion generator according to any one of claims 1 to 6, further comprising:
the timing assembly is connected to the switch control assembly and the negative ion output end and is used for detecting the output duration of the negative ions so that the switch control assembly can be used for switching on or switching off the serial circuit according to the magnitude relation between the output duration and the preset duration.
8. The negative ion generator according to any one of claims 1 to 6, further comprising:
the negative high-voltage driving assembly comprises a pulse generating module, an overvoltage current limiting module, a pass-through DC blocking module and a rectifying and filtering module which are sequentially connected, wherein the pulse generating module is used for generating a high-frequency pulse signal, the high-frequency pulse signal is boosted into an alternating-current high-voltage signal by the pass-through DC blocking module after being subjected to voltage limiting treatment and/or current limiting treatment by the overvoltage current limiting module, the alternating-current high-voltage signal is converted into direct-current negative high voltage after being subjected to treatment by the rectifying and filtering module,
the output end of the rectifying and filtering module is connected to the negative ion output end, the negative ion output end can generate high corona, and the high corona ionizes air to generate negative ions.
9. The negative ion generator according to any one of claim 1 to 6, wherein,
the negative ion output end is a metal tip and/or a carbon element tip.
10. An air cleaning apparatus, comprising:
an indoor unit;
the negative ion generator according to any one of claims 1 to 9, provided in a housing of the indoor unit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810630424.4A CN108448383B (en) | 2018-06-19 | 2018-06-19 | Anion generator and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810630424.4A CN108448383B (en) | 2018-06-19 | 2018-06-19 | Anion generator and air conditioner |
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| CN108448383B true CN108448383B (en) | 2023-12-19 |
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| WO2022242456A1 (en) * | 2021-05-18 | 2022-11-24 | 海信（山东）空调有限公司 | Air conditioner indoor unit, air conditioner, and purification control method for air conditioner indoor unit |
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| JPH0216445A (en) * | 1988-07-04 | 1990-01-19 | Duskin Co Ltd | Dust concentration detecting device and air cleaner equipped with same |
| JP2002176778A (en) * | 2000-12-08 | 2002-06-21 | Matsushita Electric Ind Co Ltd | Power supply unit and air conditioner using the same |
| KR20170053980A (en) * | 2015-11-09 | 2017-05-17 | (주)이림전자 | Anion generation module for prevention of fading phenomena of electrode or discharging pin |
| CN107196191A (en) * | 2017-05-12 | 2017-09-22 | 青岛海尔空调器有限总公司 | Negative ion generating device, air conditioner and air purifier |
| CN208489528U (en) * | 2018-06-19 | 2019-02-12 | 芜湖美智空调设备有限公司 | Anion generator and air conditioner |
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2018
- 2018-06-19 CN CN201810630424.4A patent/CN108448383B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0216445A (en) * | 1988-07-04 | 1990-01-19 | Duskin Co Ltd | Dust concentration detecting device and air cleaner equipped with same |
| JP2002176778A (en) * | 2000-12-08 | 2002-06-21 | Matsushita Electric Ind Co Ltd | Power supply unit and air conditioner using the same |
| KR20170053980A (en) * | 2015-11-09 | 2017-05-17 | (주)이림전자 | Anion generation module for prevention of fading phenomena of electrode or discharging pin |
| CN107196191A (en) * | 2017-05-12 | 2017-09-22 | 青岛海尔空调器有限总公司 | Negative ion generating device, air conditioner and air purifier |
| CN208489528U (en) * | 2018-06-19 | 2019-02-12 | 芜湖美智空调设备有限公司 | Anion generator and air conditioner |
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| CN108448383A (en) | 2018-08-24 |
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