CN106907822A - Air cleaning unit for recognizing filter contamination degree - Google Patents
Air cleaning unit for recognizing filter contamination degree Download PDFInfo
- Publication number
- CN106907822A CN106907822A CN201611138963.3A CN201611138963A CN106907822A CN 106907822 A CN106907822 A CN 106907822A CN 201611138963 A CN201611138963 A CN 201611138963A CN 106907822 A CN106907822 A CN 106907822A
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- China
- Prior art keywords
- filter
- air
- cleaning unit
- signal
- air cleaning
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/07—Analysing solids by measuring propagation velocity or propagation time of acoustic waves
-
- 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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
- G01N29/4409—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by comparison
- G01N29/4427—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by comparison with stored values, e.g. threshold values
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
- B01D46/0086—Filter condition indicators
-
- 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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/39—Monitoring filter performance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/94—Investigating contamination, e.g. dust
- G01N2021/945—Liquid or solid deposits of macroscopic size on surfaces, e.g. drops, films, or clustered contaminants
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/55—Specular reflectivity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/59—Transmissivity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/01—Indexing codes associated with the measuring variable
- G01N2291/011—Velocity or travel time
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/04—Wave modes and trajectories
- G01N2291/044—Internal reflections (echoes), e.g. on walls or defects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/04—Wave modes and trajectories
- G01N2291/048—Transmission, i.e. analysed material between transmitter and receiver
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/26—Scanned objects
- G01N2291/269—Various geometry objects
- G01N2291/2698—Other discrete objects, e.g. bricks
Abstract
The present invention relates to a kind of air cleaning unit (5), comprising：At least one air intake (21) and at least one air outlet slit (22)；At least one between air intake (21) and air outlet slit (22) set air duct (20), wherein can be set at least one holding meanss (24) of air duct (20) at least one for be filtered through air duct (20) air stream (33) filter (23)；At least one filter contamination degree measurement apparatus (26), its include at least one for produce at least one measurement signal measuring transmitter (27), wherein filter contamination degree measurement apparatus (26) include at least one detector (28) for being used to detect at least one detection signal, and wherein detection signal depends on the state and measurement signal of filter (23).
Description
Technical field
The present invention relates to a kind of air cleaning unit, the air cleaning unit is included：At least one air intake and at least
One air outlet slit；At least one air duct set between air intake and air outlet slit, wherein in air duct
Can be set at least one holding meanss at least one for be filtered through air duct air stream filter.Except this it
Outward, the invention further relates to a kind of housed device, a kind of filter for air cleaning unit and one kind are net for running air
The method that makeup is put.
Background technology
The air cleaning unit for purify air is used in many different housed devices.Housed device is, for example, air
Clarifier, air-conditioning, air humidifier, air baker and dust catcher.
Air cleaning unit includes at least one air intake and at least one air outlet slit.Air intake and air outlet slit
Connected by least one air duct.Air stream can flow to air outlet slit and flow through air duct from air intake.It is empty
Gas passage has at least one holding meanss for being used to accommodate at least one filter.It is suitable that holding meanss can especially have
Fixing device, so as to filter is firmly held in air duct according in conventional use.Fixing device can be excellent
The dismounting of filter is realized in choosing.For example, can remove filter or carried out more with new filter for the purpose of cleaning
Change.
Filter can micronic dust cleaner in particular.Micronic dust cleaner is particularly used for filtering particle from air stream,
Such as dust granule.Due to filtering particle from air stream, dust granule is gradually accumulate on filter.In other words, filter
It is dirty in housed device operation.
In order to ensure the feature of the housed device with corresponding air cleaning unit, it is necessary to periodic replacement or at least
Cleaning filter.In the prior art herein, it is known that being changed after the run time of regulation or cleaning filter.For example, family
This time point can be shown with equipment to user.Due to housed device individual other service condition and/or in various degree
Contaminated air (such as urban air or rural air), filter can also usually use at the time point of regulation.Cause
This need not change filter or cleaning filter.Thus, unnecessary trouble and unnecessary expense is generated to user.
As an alternative, it is known in the state of the art, by pressure measxurement in the air passageway, such as dynamic pressure measurement
Or pressure difference measurements determine the filter contamination degree of filter.Additionally, also existing for detecting air in the air passageway
The measurement apparatus of the fluid velocity of stream.Pressure measxurement or fluid velocity measurement according to air stream, it may be determined that filter is dirty
Dye degree.However, the shortcoming of this measurement apparatus is big space requirement needed for measurement apparatus.And exactly with air purifier
Or space present in the housed device of dust catcher form is minimum.Additionally, measurement result is usually inadequate in the prior art
Accurately.
The content of the invention
Therefore, it is an object of the invention to provide a kind of air cleaning unit, the air cleaning unit has small space
Demand and at least sufficiently exact measurement result of offer.
The purpose is realized by air cleaning unit according to claim 1 according to the first aspect of the invention.Air is net
Makeup is put comprising at least one air intake and at least one air outlet slit.Air cleaning unit enters comprising at least one in air
The air duct set between mouth and air outlet slit.At least one can be set at least one holding meanss of air duct
Filter for being filtered through the air stream of air duct.Air cleaning unit is measured comprising at least one filter contamination degree
Device, the filter contamination degree measurement apparatus are used to produce the measurement signal of at least one measurement signal to occur comprising at least one
Device.Filter contamination degree measurement apparatus include at least one detector for being used to detect at least one detection signal.Detection signal
Depending on the state and measurement signal of filter.
In contrast to the prior art, dress is measured by using the filter contamination degree with measuring transmitter and detector
Put, wherein the filter contamination degree measurement apparatus produce (extra) measurement signal and to the state depending on filter and measurement
The detection signal of signal detected, can provide a kind of measurement apparatus of small structure.The measurement apparatus are particularly suitable for assembling
In housed device, such as in air purifier or dust catcher.Especially, filter contamination degree measurement apparatus provide at least enough
Accurate measurement result.In addition improve by least reducing unnecessary cleaning process or unnecessary filter replacement
User's comfort level.
Air cleaning unit can be used especially in housed device.Exemplary housed device is air purifier,
Air-conditioning, air humidifier, air baker and dust catcher.
Air cleaning unit includes air intake, and air can be with air inlet device by the air intake.Passage of air
At least one air duct and by least one air outlet slit from air cleaning unit flow out.It is to be understood that can set
Put multiple air intakes and/or multiple air outlet slits.
In the air passageway, at least one filter can be set.Air duct can have at least one for keeping
The holding meanss of filter.For example, it can be the groove in the wall of air duct, filter is inserted into the groove.
Preferably, at least one filter can be prefilter.Filter can be included with fence and/or textile material
The filter medium of form, such as fleece material form.This filter can seem especially that filter screen equally works.Filter can
For by (thick) impurity, such as hair, fine hair, pollen, small insect and similar particulate matter are filtered from air stream.
Air cleaning unit is characterised by the filter contamination degree measurement apparatus of the state for knowing filter.Especially
Ground, for example can determine pollutional condition in the form of filter contamination degree.
Filter contamination degree measurement apparatus include at least one measuring transmitter.Measuring transmitter is used to produce
(specific) measurement signal.Especially, measurement signal can be applied on filter or filter by measuring transmitter
It is other.For example, measuring transmitter can on the filter apply measurement signal or to sending measurement on the direction of filter
Signal.
Measurement signal is set to, and is affected by the state of filter.Resulting signal particularly claims herein
It is detection signal.In other words, detection signal is produced by the state of measurement signal and filter.The state of filter was particularly related to
The filter contamination degree of filter.
Filter contamination degree measurement apparatus include at least one detector.Detector is set to, and obtains at least one and detects
Signal.The pollutional condition of filter state, particularly filter can be derived by detection signal.
The first embodiment of air cleaning unit of the invention, filter contamination degree measurement apparatus include at least one
The individual evaluation module for determining filter contamination parameter according at least to detection signal.Evaluation module can be used for according to filter
Pollution parameters determine filter contamination degree.First, evaluation module at least assesses detection signal and thereby determines that filter contamination
Parameter.Preferably, filter contamination parameter can be calculated by measurement signal and detection signal.Alternately or extraly may be used
In assessment to obtain the difference between measurement signal and detection signal and thus derive filter contamination parameter.
Filter contamination degree is can then determine from the filter contamination parameter for determining.Filter contamination degree can be special
Show, if need cleaning filter or change filter.In a preferred embodiment, filter contamination degree can be with
For example be given with percentage.Here, 0% represents untainted state, 100% represents the shape that filter (at the latest) should be changed
State.
Filter contamination degree can be in a different manner derived from filter contamination parameter in principle.Preferred real
Apply in mode, evaluation module includes at least one comparison module.Comparison module can be used in by filter contamination parameter with least
One filter contamination reduced parameter for storing in memory compares.Evaluation module can be provided for according to comparative result
Determine filter contamination degree.For example, filter contamination reduced parameter can be limiting value.Filter contamination for determining is joined
Number exceedes the situation of the limiting value, and filter contamination degree can indicate that：Need to change or clean filter.If filter
Pollution parameters are not above limiting value, and filter contamination degree can indicate that：Without changing or cleaning filter.Preferably,
Multiple filter contamination reduced parameters can be stored for example in memory in graph form.Test result based on before,
Each comparing filter contamination parameter can be at least set to correspond to a filter contamination degree.By the filter contamination that will be determined
Parameter is compared with filter contamination reduced parameter, it may be determined that corresponding current filter contamination degree.
A kind of air cleaning unit of the invention preferred embodiment in, measuring transmitter can set
Put for producing electric measurement signal.Preferably, voltage generator can be set, and the voltage generator is used to produce voltage to believe
Number.Detector can be preferably used for the electric detection signal of detection.Preferably, detector can be current measurer.Accordingly
Device only need to small structure space.
Preferably, measuring transmitter could be arranged to for electric measurement signal to be applied to by contact component
(anlegen) on filter.By identical contact component, detector can preferably obtain detection signal.Holding meanss can
Filtering is corresponded to the first electrode comprising the first filter contact corresponding to filter according to implementation method and at least one
Other electrodes of another filter contact of device.
Measuring transmitter can be used for being applied to electric measurement signal on electrode.Alternately or extraly,
Detector can be used for obtaining electric detection signal from electrode.Between detection signal generator and this at least two electrode
And electrical connection can be set between detector and this at least two electrode.In a straightforward manner, particularly voltage form
Measurement signal can be applied on filter and can obtain or measure in the form of the electric current of flowing between electrode
Detection signal.
Particularly preferably, the resistivity using filter between at least two filter contacts is used as filter contamination parameter
It is determined that, the two filter contacts can be connected by the conductor circuit of at least one conduction.Therefore in particular according to another reality
Mode is applied, evaluation module can be used for determining between the first filter contact and another filter contact the resistance of filter
Rate.The resistivity of the determination that evaluation module can depend on filter determines filter contamination degree.Evaluation module can be by measuring
The value of signal (such as voltage) and detection signal (such as electric current) determines the resistivity of filter.
Additionally, resistivity is determined by below equation：
P=RA/l (a)
Wherein R is the resistance of filter, and A is the cross-sectional area that flows through of electric current of filter, and l is the length of filter
Degree.It is recognised that resistivity is changed by the foreign particle received in operation by filter.This has particularly resulted in and has begun
The change of electric current under conditions of whole identical voltage measurement signal.This allows to be determined by the resistivity of the filter for measuring
Filter dustiness.Preferably this can be by multiple (such as in graph form) comparison resistance values and corresponding filter contamination
Angle value is preserved in memory.The resistivity that comparison module can be used for the filter that will be determined compares with comparison resistance value,
So that it is determined that corresponding filter contamination degree.
In another (replaceability) implementation method, measuring transmitter can be used for producing voice signal.Detector
Can be used for detection from the acoustical signal of filter reflection.Alternately or extraly, detector can be used for detection by filter
The acoustical signal of transmission.Preferably, multiple acoustic impluses can be generated and to mistake as voice signal from measuring transmitter
Filter direction sends.For example, ultrasonic pulse can be generated.Acoustical signal is at least partly reflect and at least part of by filter
Ground sends.The wherein at least one of these voice signals can be detected as detection signal by detector.In a kind of implementation method
In, detector can include two detection modules, so as to be detected as the reflection of detection signal by first detection module
Acoustical signal and the acoustical signal of the transmission as another detection signal is detected by the second detection module.Sound generator harmony
Tone Detector small structurally can be assemblied in housed device.
Used as filter contamination parameter, evaluation module can determine from sound detection signals and/or acoustic measurement signal
Particularly diffraction parameters of the distance between filter and detector/measuring transmitter parameter and/or detection signal.According to
Implementation method, evaluation module can be provided for acoustical signal and the acoustical signal of reflection according to sending to determine filter with detection
Device and/or with the distance between measuring transmitter parameter.Distance parameter can be entering for measurement signal and detection signal
The row time or drawn by the time of carrying out the distance between with detector and/or with measuring transmitter.Preferably, examine
Survey device and measuring transmitter may be constructed a unit, so that the distance between measuring transmitter and filter are basic
It is upper to be equal to the distance between detector and filter.It is known that between filter surfaces and measuring transmitter/detector
Distance (or carrying out time of measurement signal and detection signal) by filter it is (increased) pollution and diminish.With resistivity
It is similar, the comparing by the distance parameter that detects compared with the distance versus parameter that at least one stores in memory operate and
Determine filter contamination degree.Each distance versus parameter can correspond to a filter contamination degree.
Alternately or extraly, evaluation module is determined for the diffraction parameters of the acoustical signal for sending.Due to filtering
There is diffraction in the optical signal that the surface texture of device is reached.Diffraction changes along with the increase of pollution.In other words, particularly filter
The translucency of device changes.Comparing that can be for example by describing before by the diffraction parameters for determining operates the current mistake of determination
Filter dustiness.
Another (replaceability) implementation method of air cleaning unit of the invention, measuring transmitter can be used
In generation optical signal.Detector can be used for the optical signal that detection is reflected by filter.Alternately or extraly, detector can
For detecting the optical signal sent by filter.(generation) optical signal can have the ripple in the range of 380nm to 780nm
It is long.Optical signal can be produced by measuring transmitter and sent on filter direction.For example, LEQ sources or lasing light emitter
Can serve as measuring transmitter.Optical signal can be at least partly reflect by filter and be sent at least in part.This
The wherein at least one of a little optical signals can be detected as detection signal by detector.It is similar with implementation method before, detection
Device can include two detection modules, so as to reflection is detected as detection signal by first detection module acoustical signal simultaneously
And the acoustical signal as the transmission of another detection signal is detected by the second detection module.
Preferably, evaluation module can be used for optical signal and the optical signal of reflection according to sending to determine filter with inspection
Survey device and/or with the distance between measuring transmitter parameter.Distance parameter can be entering for measurement signal and detection signal
The row time or drawn by the time of carrying out the distance between with detector and/or with measuring transmitter.Alternately or
Extraly, evaluation module is determined for the diffraction parameters of the optical signal for sending.With the implementation method of acoustical signal correspondingly, mistake
Filter dustiness can be by least one filter contamination parameter determination for determining.
According to another implementation method, air cleaning unit is used to produce by the air stream of air duct comprising at least one
Blast apparatus.Especially, the air stream that air outlet slit is flowed to by air intake can be produced by blast apparatus.
Preferably, air cleaning unit can include at least one is used for the output module of output filter dustiness.Example
Such as, output module can transmit filter contamination degree to the indicator of housed device.Thus, at least shown to user, be
It is no to clean or change filter.
In principle, determination filter contamination degree can at any time be put.In one case, it is also possible to continuously determined
Filter dustiness.Preferably, filter contamination degree measurement apparatus can be used for determining filtering on time point that can be prespecified
The filter contamination degree of device.This for example when housed device starts every time, after certain run time is run and/or by
Carried out when user enables manually.In order to determine filter contamination degree, can especially start filter contamination degree measurement apparatus.
Another aspect of the present invention is related to a kind of housed device, air of the housed device comprising at least one description before
Purifier.Exemplary housed device is air purifier, air-conditioning, air humidifier, air baker and dust catcher.
An other scheme of the invention is related to a kind of net for air cleaning unit, the air for particularly describing before
Change the filter of device.Filter medium of the filter comprising at least one plane for being used for the air stream for being filtered through air duct.
Filter includes the first filter contact and at least one other filter contact, and filter medium is comprising at least one first
Conductive conductor circuit between filter contact and another filter contact.
The region that the filter medium of the plane of filter particularly air stream is passed through.The filter medium of plane is by that can filter
The material of undesirable particle, such as pollen, hair and dust granule is constituted.For example, filter medium can be by fabric structure
Composition.Fleece material can particularly be used.
Filter of the invention is particularly well-suited to be used in filter, and wherein measuring transmitter will be electric
Signal be applied in multiple electrodes and detector is captured from these electrodes or measures electric signal.By making filter
It is preferred that having multiple conductor circuits between filter contact, can determine in a straightforward manner for representing filter contamination
The filter contamination parameter of degree.Especially, can be by the voltage of applying on filter contact and between filter contact
Flow through conductor circuit electric current be determined as filter contamination parameter filter resistivity.As has been elaborated, the filtering
Device pollution parameters change according to the pollutional condition of filter.
In principle it is contemplated that electric conductor circuit is arranged on the filtering material of filter medium by different way
Or among.For example, conductor circuit can be imprinted.Filter of the invention preferred embodiment, by by conduction material
Material interweaves with manufacturing the conductor circuit of conduction with the filtering material of filter medium.
In addition, according to another implementation method of filter, the first filter contact can be arranged on the of filter
On one side and another filter contact can be arranged in the another side relative with the first side of filter.As
Illustrate, filter contact position on the filter and its design respectively with the position of the electrode of air cleaning unit with
And the design of these electrodes is corresponding.
A further aspect of the invention is a kind of purification of air for running air cleaning unit, particularly describe before
The method of device, wherein air cleaning unit include at least one air intake and at least one air outlet slit, at least one
The air duct set between air intake and air outlet slit, and can be arranged at least one holding meanss of air duct
At least one be used for be filtered through air duct air stream filter.The method is included：
- measurement signal is produced, and
- detection detection signal,
- wherein detection signal depends on the state and measurement signal of filter.
Brief description of the drawings
For air cleaning unit of the invention, housed device of the invention, filter of the invention
With the possibility that there are various designs for the method according to the invention and further expand.In this regard, on the one hand referring to independent right
It is required that after claim, on the other hand with reference to accompanying drawing reference implementation example explanation.Wherein：
Fig. 1 shows the schematic diagram of the embodiment of housed device of the invention,
Fig. 2 shows the schematic diagram of another embodiment of housed device of the invention,
Fig. 3 shows the schematic diagram of the embodiment of air cleaning unit of the invention,
Fig. 4 shows another schematic diagram of the embodiment of the air cleaning unit according to Fig. 3,
Fig. 5 shows the schematic diagram of the embodiment of air cleaning unit of the invention, and
Fig. 6 shows the chart for running a kind of embodiment of the method for air cleaning unit of the invention.
Identical part is presented with like reference characters below.
Specific embodiment
Fig. 1 shows the schematic diagram of the embodiment of the housed device 1 for being shaped to air purifier 1.Air purifier 1 has
Opening 3, surrounding air is by opening air inlet clarifier 1.This is represented by the arrow marked with reference 6.
In the housing 2 of air purifier 1, a kind of implementation method of air cleaning unit 5 of the invention is set.It is logical
At least a portion for crossing opening leaked-in air can flow through air cleaning unit 5.The air purified by air cleaning unit 5 is again
Flowed out from air purifier 1 by opening 4.This is represented by the arrow marked with reference 7.
Additionally, air purifier 1 includes filter contamination degree indicator 8 herein.It for example can be vision and/or sound
The indicator 8 of sound.
Fig. 2 shows the schematic diagram of another embodiment of the housed device 1 for being shaped to dust catcher 10.Dust catcher 10 can have
There are annex 12 and matrix 11.Air can be sucked by annex 12 by dust catcher 10.Use can be especially set in matrix 11
In the air cleaning unit 5 of the air of filtering suction.
In order to guide dust catcher 10, dust catcher to be provided with the handle 13 that can be stretched set on matrix 11.It is in end
It is upper that there is handle 15.The cable 14 by extending in handle 15 carries out electric current supply herein.
Additionally, dust catcher 10 includes filter contamination degree indicator 8, such as vision and/or sound indicator 8.
Air cleaning unit 5 is illustrated in detail below.Fig. 1 shows the embodiment of air cleaning unit of the invention 5
Schematic diagram.Air cleaning unit 5 includes the air duct 20 that air outlet slit 22 is extended to from air intake 21.Set by air blast
Standby 25 can produce the air stream 33 from air intake 11 on the direction of air outlet slit 22.Air stream 33 is herein by filter
23.For example, filter 23 is so-called prefilter 23, in order to filter dust granule from air stream.It is to be understood that empty
Air purifying apparatus 5 include other (unshowned) filters, for example HEPA filters, active carbon filter, UV filters and/or
Similar filter.
Filter 23 can be arranged in the holding meanss 24 of air duct 20.Holding meanss 24 can have (not shown
) fixing device, such as clamping close device, so that filter 23 is arranged in air duct 20 in the way of it can change.
Filter 23 has the first filtering contact 31.1 and another filtering contact 31.2 herein.Filtering contact 31.1,31.2
The conductor circuit 32 in the relative end profile of filter 23 and by least one conduction is arranged on to connect.
Filter 23 is so fixed in holding meanss 24 under operation, i.e., first electrode 30.1 connects at least in part
Touch the first filter contact 31.1 and another electrode 30.2 contacts another filter contact 31.2 at least in part.In other words,
Exist in corresponding electrode 30.1,30.2 and filter contacts point 31.1, between 31.2 and be conductively connected.
It can further be seen that air cleaning unit 5 has filter contamination degree measurement apparatus 26, filter contamination degree measurement
Device includes measuring transmitter 27 and detector 28.By the measuring transmitter 27 for schematically showing, can be by example
Measurement signal such as voltage signal form is applied on electrode 30.1,30.2 and is therefore applied on filter 23.Schematically
The detector 28 for showing can measure the electric current for for example being flowed by the conductor circuit 32 of at least one conduction and be used as detection signal.
The current signal of the voltage signal of applying and measurement is supplied to evaluation module 29 herein.Evaluation module 29 passes through this
Two signals (U and I) as filter contamination parameter are preferably determined in filter contact 31.1, the filter between 31.2
23 resistivity p.
Comparison module 34 is provided for the resistivity p that will be determined and the resistance stored preferably in memory 36 and contrasts bent
Line compares.Here, the section of resistance correlation curve or point can be associated with filter contamination angle value.These data can be such as
Determined in advance by test.
Used as the result for comparing operation, filter contamination degree can be given by comparison module, the electricity of comparison module and storage
Resistance is associated, and the resistance value is substantially consistent with the resistance value determined.The filter contamination degree determined can be supplied to
Output module 37.Filter contamination degree can be for example forwarded to indicator 8 by the output module 37, real so as to be indicated to user
When filter contamination degree.
It is to be understood that the single module 27-37 of filter contamination degree measurement apparatus 26 can be molded at least in part
It is separate unit.
Fig. 4 shows the embodiment of the air cleaning unit 5 in particular according to Fig. 4 with another schematic diagram.Explain in detail herein
State the front of the embodiment of filter of the invention 23.Front is exactly the side that air stream 33 to be filtered enters.
It can be seen that, filter medium 35 of the filter 23 comprising plane.The filter medium 35 of plane can for example by wool
Material is constituted.Filter medium 35 has multiple conductive conductor circuits 32.These for example can be made up of metal material.Conductive
Conductor circuit 32 preferably interweaves with the material of filter medium 35.Alternately, conductive conductor circuit 32 can also be impressing.
Fig. 5 show in a schematic another embodiment of air cleaning unit of the invention 5.With schematical side
Formula, sets measuring transmitter 27 and detector 28 in air duct 22.Preferably, measuring transmitter 27 and detection
Device is set in the housing.Measuring transmitter 27 is used to produce measurement signal and be sent up to the side of filter 23.Preferably,
Measurement signal is the acoustical signal with multiple pings.Alternately, measurement signal can also be optical signal.
Measurement signal is reflected by filter 23 at least in part.The signal of reflection is examined as detection signal by detector 28
Survey.Measurement signal and detection signal can be in an appropriate form forwarded to assessment mould by detector 28 and measuring transmitter 27
Block 29.
Evaluation module 29 preferably can calculate filter 23 (namely surface of filter 23) by the run time of signal
The distance between with measuring transmitter 27 or with detector 28.Filter and measuring transmitter 27 or with detection
The distance between device 28 (and adjoint arrival time) is reduced with the increase of pollution.
Evaluation module 29 can have comparison module 34, and the distance in order to determine is stored with preferably in memory 36
Distance versus curve compare.These point or these sections it is related to filter contamination degree so that for example determine away from
The filter contamination degree (Y%) of the determination of filter 23 is capable of determining that in the case of (Xcm).By comparing operation, therefore
The real-time filter contamination degree of filter 23 can be determined by the distance determined.
The filter contamination degree of determination can for example be forwarded to the indicator 8 of housed device 1,10 by output module 37.
Additionally or alternatively property ground, can be provided for the sound letter that detection sends in another (unshowned) implementation method
Number or optical signal detector.
Finally, Fig. 6 shows the flow chart of the embodiment of the method for running air cleaning unit.The following examples
It is related to the embodiment shown in Fig. 3 and 4.The embodiment however can in a straightforward manner be transformed to the embodiment according to Fig. 5.
In first step 601, filter contamination degree measurement apparatus 26 are started first.For example, this can regulation when
Between terminate after, particularly housed device 1, after 10 run time terminates, by using person it is manually operated such as
Carried out during the startup of housed device 1,10.
Then produced voltage signal and be applied to electrode 30.1 by measuring transmitter 27 is preferred in step 602,
On 30.2.Then flowed as the process of detection signal or by filter 23 by the preferred measurement of detector 28 in step 603
Dynamic electric current.Step 602,603 especially can simultaneously be carried out.
In step 604, voltage and the electric current of measurement that the assessment of evaluation module 29 applies.In the way described before, first
The resistivity of filter 23 can be calculated and then the resistance value from calculating determines filter contamination degree.
Finally, filter contamination degree can be shown by indicator 8 in step 605.It is merely able in simple cases
Display whether to need to change or clean filter 23.Alternately, real-time filter contamination degree can be shown and/or by reality
When filter contamination degree assessment possibility need change or clean filter 23 time point.
Claims (16)
1. a kind of air cleaning unit (5), the air cleaning unit is included：
- at least one air intake (21) and at least one air outlet slit (22)
- at least one air duct (20) set between air intake (21) and air outlet slit (22),
- at least one can be wherein set at least one holding meanss (24) of air duct (20) for being filtered through sky
The filter (23) of the air stream (33) of gas passage (20),
Characterized in that,
- the air cleaning unit (5) includes at least one filter contamination degree measurement apparatus (26), the filter contamination degree
Measurement apparatus include at least one measuring transmitter (27) for being used to produce at least one measurement signal,
- wherein described filter contamination degree measurement apparatus (26) include at least one inspection for being used to detect at least one detection signal
Device (28) is surveyed,
Wherein described detection signal depends on the state and measurement signal of the filter (23).
2. air cleaning unit (5) according to claim 1, it is characterised in that
- filter contamination degree the measurement apparatus (26) are provided for determining to filter according at least to detection signal comprising at least one
The evaluation module (29) of device pollution parameters, and
- the evaluation module (29) is provided for according to filter contamination parameter determination filter contamination degree.
3. air cleaning unit (5) according to claim 2, it is characterised in that
- the evaluation module (29) includes at least one comparison module (34),
- wherein described comparison module (34) is provided for filter contamination parameter and at least one storage in memory (36)
Filter contamination reduced parameter compare, and
- the evaluation module (29) according to comparative result for determining filter contamination parameter.
4. air cleaning unit (5) according to any one in preceding claims, it is characterised in that
- the measuring transmitter (27) for producing electric measurement signal, and
- the detector (28) is provided for the electric detection signal of detection.
5. air cleaning unit (5) according to claim 4, it is characterised in that
First electrode of-the holding meanss (24) comprising the first filter contact (31.1) corresponding to filter (23)
(30.1) at least another electrode (30.2) of another filter contact (31.2) and corresponding to filter (23),
- the measuring transmitter (27) for electric measurement signal to be applied on electrode (30.1,30.2), and/or
- the detector (28) is provided for obtaining electric detection signal from electrode (30.1,30.2).
6. air cleaning unit (5) according to Claims 2 or 3 and 5, it is characterised in that
- the evaluation module (29) is for determining in filter (23) in the first filter contact (31.1) and another filter
Resistivity between contact (31.2), and
- the evaluation module (29) is set to, and the resistivity according to the filter (23) determined determines filter contamination degree.
7. air cleaning unit (5) according to any one of Claim 1-3, it is characterised in that
- measuring transmitter (27) for producing acoustical signal, and
- detector (28) for detect from filter (23) reflection acoustical signal, and/or
- detector (28) is for detecting the acoustical signal sent by filter (23).
8. air cleaning unit (5) according to claim 7, it is characterised in that
- the evaluation module (29) according to the acoustical signal and the acoustical signal of reflection that send for determining filter (23) with detection
Device (28) and/or with the distance between measuring transmitter (27) parameter, and/or
The diffraction parameters of the acoustical signal of-evaluation module (29) for determining to send.
9. air cleaning unit (5) according to any one of Claim 1-3, it is characterised in that
- measuring transmitter (27) for producing optical signal, and
- detector (28) for detect from filter (23) reflection optical signal, and/or
- detector (28) is for detecting the optical signal sent by filter (23).
10. air cleaning unit (5) according to claim 9, it is characterised in that
- the evaluation module (29) according to the optical signal and the optical signal of reflection that send for determining filter (23) with detection
Device (28) and/or with the distance between measuring transmitter (27) parameter, and/or
The diffraction parameters of the optical signal of-evaluation module (29) for determining to send.
Air cleaning unit (5) described in 11. any one in preceding claims, it is characterised in that
- the air cleaning unit (5) is used to produce the drum by the air stream (33) of air duct (20) comprising at least one
Wind devices (25).
12. it is a kind of include at least one according to the housed device of the air cleaning unit (5) of any one of preceding claims (1,
10)。
13. is a kind of for air cleaning unit (5), in particular according to the purification of air any one of claim 1 to 11
The filter (23) of device (5), the filter is included：
The filter medium (35) of-at least one plane for being used for the air stream (33) for being filtered through air duct (20),
- the first filter contact (31.1) and at least one other filter contact (31.2), and
- wherein filter medium (35) is included between the first filter contact (31.1) and another filter contact (31.2) extremely
A few conductor circuit for conduction (32).
14. filters (23) according to claim 13, it is characterised in that by by conductive material and filter medium (35)
Filtering material interweave manufacture conduction conductor circuit (32).
15. filter according to claim 13 or 14, it is characterised in that the first filter contact (31.1) was arranged on
On first side of filter (23) and another filter contact (31.2) is arranged on the relative with the first side of filter (23)
Another side on.
16. is a kind of for running air cleaning unit (5), in particular according to the air any one of claim 1 to 11
The method of clarifier (5), wherein the air cleaning unit (5) includes at least one air intake (21) and at least one air
Outlet (22), at least one air duct (20) set between air intake (21) and air outlet slit (22), and can set
At least one of at least one holding meanss (24) in air duct (20) are put for being filtered through air duct (20)
The filter (23) of air stream (33), methods described is included：
- measurement signal is produced, and
- detection detection signal,
- wherein detection signal depends on the state and measurement signal of filter (23).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015121493.8A DE102015121493A1 (en) | 2015-12-10 | 2015-12-10 | Air cleaning arrangement for detecting the degree of filter contamination |
| DE102015121493.8 | 2015-12-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106907822A true CN106907822A (en) | 2017-06-30 |
Family
ID=58773419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611138963.3A Pending CN106907822A (en) | 2015-12-10 | 2016-12-12 | Air cleaning unit for recognizing filter contamination degree |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106907822A (en) |
| DE (1) | DE102015121493A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109173456A (en) * | 2018-11-19 | 2019-01-11 | 奥克斯空调股份有限公司 | Air-conditioning filter net cleans reminding method and device |
| CN109855233A (en) * | 2017-11-30 | 2019-06-07 | 深圳市美好创亿医疗科技有限公司 | Filter element validation checking system and detection method |
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| US3268080A (en) * | 1962-09-26 | 1966-08-23 | Avco Corp | Self-clarifying filter system |
| CN1727791A (en) * | 2004-07-26 | 2006-02-01 | 乐金电子(天津)电器有限公司 | Device and method for detecting and reminding about maintenance for filter screen of air conditioner |
| US20110068053A1 (en) * | 2009-09-22 | 2011-03-24 | Electronics And Telecommunications Research Institute | Filtering device |
| DE102009047614A1 (en) * | 2009-12-08 | 2011-06-09 | Robert Bosch Gmbh | Contaminations detecting device for air filter utilized for filtering contamination particles of intake air in intake system of internal combustion engine of vehicle, has signal processing unit for outputting display signal at output device |
| CN105135543A (en) * | 2015-09-09 | 2015-12-09 | 天津市科易电子科技有限公司 | High-efficiency air purifier electrostatic dust removal device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4014442A1 (en) * | 1990-05-05 | 1991-11-07 | Duepro Ag | DEVICE FOR DISPLAYING THE DEGREE OF POLLUTION OF AIR FILTERS IN SUCTION CLEANING DEVICES, ROOM FILTERS OR THE LIKE. |
| DE102014015529A1 (en) * | 2014-10-21 | 2016-04-21 | Daimler Ag | Filter device, in particular for an air conditioning device of a motor vehicle |
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2015
- 2015-12-10 DE DE102015121493.8A patent/DE102015121493A1/en not_active Withdrawn
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2016
- 2016-12-12 CN CN201611138963.3A patent/CN106907822A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3268080A (en) * | 1962-09-26 | 1966-08-23 | Avco Corp | Self-clarifying filter system |
| CN1727791A (en) * | 2004-07-26 | 2006-02-01 | 乐金电子(天津)电器有限公司 | Device and method for detecting and reminding about maintenance for filter screen of air conditioner |
| US20110068053A1 (en) * | 2009-09-22 | 2011-03-24 | Electronics And Telecommunications Research Institute | Filtering device |
| DE102009047614A1 (en) * | 2009-12-08 | 2011-06-09 | Robert Bosch Gmbh | Contaminations detecting device for air filter utilized for filtering contamination particles of intake air in intake system of internal combustion engine of vehicle, has signal processing unit for outputting display signal at output device |
| CN105135543A (en) * | 2015-09-09 | 2015-12-09 | 天津市科易电子科技有限公司 | High-efficiency air purifier electrostatic dust removal device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855233A (en) * | 2017-11-30 | 2019-06-07 | 深圳市美好创亿医疗科技有限公司 | Filter element validation checking system and detection method |
| CN109173456A (en) * | 2018-11-19 | 2019-01-11 | 奥克斯空调股份有限公司 | Air-conditioning filter net cleans reminding method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102015121493A1 (en) | 2017-06-14 |
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