CN109689217A - Air cleaning unit - Google Patents
Air cleaning unit Download PDFInfo
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- CN109689217A CN109689217A CN201780054060.3A CN201780054060A CN109689217A CN 109689217 A CN109689217 A CN 109689217A CN 201780054060 A CN201780054060 A CN 201780054060A CN 109689217 A CN109689217 A CN 109689217A
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- mentioned
- air
- discharge electrode
- cleaning unit
- cleaning
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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- Electrostatic Separation (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Air cleaning unit (100) for purifying air has: discharge electrode (50), for generating ion in air；Trap portion (16), for trapping the particle charged by ion in air；And pressure fan (17), trap portion (16) are bypassed air through for flowing air, pressure fan (17) generates air-flow and makes impact of air currents accumulation in the particle on discharge electrode (50).
Description
Technical field
The present invention relates to the air cleaning units for purifying air.
Background technique
A kind of utilization discharge electrode (ion generator is disclosed in the JP2015-188851A of Japan；Ionizer) come
It charges dust in air and traps the air cleaning unit (electric smoke precipitation device) of dust.
In above-mentioned air cleaning unit, if there is the sedimentating dust as time go on and on discharge electrode, discharge
The output of electrode can decline and the risk that causes the purifying property of air to decline.
As countermeasure, proposed in Japanese JP2000-024548A a kind of for cleaning the sanitizer cartridge of discharge electrode
It sets.In the cleaning device, brush (cleaning part) is slidingly contacted at discharge electrode and sweeps and falls accumulation in the powder of discharge electrode
Dirt.
Summary of the invention
However, needing to be slidingly contacted at when cleaning discharge electrode in the cleaning device of Japanese JP2000-024548A
The brush of discharge electrode phase.Therefore, when by the cleaning device of Japanese JP2000-024548A be applied to Japan JP2015-
When the air cleaning unit of 188851A, the structure of air cleaning unit is possible to become complicated.
The object of the present invention is to provide the air cleaning for the purifying property that air is kept by simple structure dresses
It sets.
The air cleaning unit of a scheme according to the present invention, provided purification air includes: discharge electrode, is used for
Ion is generated in air；Trap portion, for trapping the particle charged by ion in air；And pressure fan, for making
Air is flowed through above-mentioned trap portion, and above-mentioned pressure fan generates air-flow and makes impact of air currents accumulation in above-mentioned discharge electrode
On particle.
According to above scheme, impact of air currents discharge electrode and remove accumulation in the particle of discharge electrode.In this way, not using
Brush etc. can be removed the particle accumulated on discharge electrode.Therefore, it is possible to provide the net of air is kept by simple structure
Change the air cleaning unit of performance.
Detailed description of the invention
Fig. 1 is the brief configuration figure for showing the air cleaning unit of embodiments of the present invention.
Fig. 2A is the Line Chart for showing ion generation amount deterioration figure.
Fig. 2 B is the Line Chart for showing ion generation amount deterioration figure.
Fig. 3 is the Line Chart for showing ion generation amount recovery figure.
Fig. 4 is the flow chart for showing control content.
Fig. 5 is to show ion generation amount according to the Line Chart of the case where of variation by the time.
Fig. 6 is the performance plot shown the case where the reduction amount of ion generation amount changes according to air velocity.
Fig. 7 is the Line Chart for showing ion generation amount deterioration figure.
Fig. 8 is the flow chart for showing control content.
Fig. 9 is to show ion generation amount according to the Line Chart of the case where of variation by the time.
Figure 10 is the sectional view along the X-X line of Figure 12.
Figure 11 is the sectional view along the XI-XI line of Figure 10.
Figure 12 is the sectional view along the XII-XII line of Figure 10.
Figure 13 is the sectional view for showing bracket etc..
Figure 14 is the sectional view along the XIV-XIV line of Figure 13.
Specific embodiment
Hereinafter, being illustrated referring to attached drawing to the air cleaning unit 100 of embodiments of the present invention.
Fig. 1 is to show the figure for being equipped on vehicle 1 and the brief configuration using the air-conditioning device 101 of air cleaning unit 100.
The air purified is supplied to the interior 2 of vehicle 1 by air cleaning unit 100.Air cleaning unit 100 is included in air-conditioning device
101。
Air cleaning unit 100 has the framework (shell) 10 and pressure fan (air blower of guidance air；blower fan)
17.Pressure fan 17 is driven by motor 20, and in the delivered inside air of framework 10.Air output (the unit time of pressure fan 17
Interior discharge air mass flow) multiple stages can be switched under the control of control unit (controller) 5.
The upstream side about pressure fan 17 in the flow path (air supply path) 29 in framework 10 is provided with outside air importing
Mouth 11, inner air introducing port 12 and upstream-side channel 14.External air introducing ports 11 are from the outside of vehicle 1 such as arrow A1
Shown such flow path for importing air.Inner air introducing port 12 is the stream for importing air as indicated by arrow a 2 from interior 2
Road.Compared with external air introducing ports 11, the flow path length of inner air introducing port 12 is short and flow path resistance is small.
The merging part of external air introducing ports 11 and inner air introducing port 12 is provided with the inlet valve for being opened and closed them
(intake door)13.The angle (aperture) of inlet valve 13 can change under the control of control unit 5.Inlet valve 13 can be in outside
Air, which imports between position and inner air shown in FIG. 1 import position, to be switched, or adjusted according to its angle inner air with
The composite rate of outside air.
Upstream-side channel 14 is provided with 50 (ion generator of discharge electrode；Ionizer), particle concentration sensor (dust
Concentration sensor) 6 and trap portion (electrostatic filter) 16.
Particle concentration sensor 6 is used to detect the concentration of the particle in air.The detection signal of particle concentration sensor 6 to
Control unit 5 is sent.
Discharge electrode 50 is powered under the control of control unit 5, and generates cation or anion.It is generated from discharge electrode 50
Ion make the charge particles in the air flowed as shown with arrow a 3 in upstream-side channel 14.
Trap portion 16 be energized and with positive electrostatic or negative electrostatic, and under the action of electrostatic force trap air in because
Discharge electrode 50 and charge particle (for example, PM (particulate matter) 2.5).In addition, trap portion 16 can also be connected with car body and be fixed
In earthing potential (ground of car body).In this way, air of the flowing in the flow path 29 in framework 10 passes through trapping
Portion 16 and be inhaled into pressure fan 17 after being cleaned.
The downstream side about pressure fan 17 in flow path 29 in framework 10 is provided with downstream-side channel 15, defrosting inflatable mouth
25, ventilation inflatable mouth 26 and foot's inflatable mouth 27.The window 3 of air from defrosting inflatable mouth 25 towards interior 2 is blown out.Come
Seat (diagram is omitted) blowout of the air of self-ventilation inflatable mouth 26 towards interior 2.Air direction from foot's inflatable mouth 27
The floor of interior 2 blows out (illustration omitted).
Downstream-side channel 15 is provided with evaporator (air cooling heat exchanger) 18, heating core (change by air heating
Hot device) 19 and air mixing door 21.The air being discharged as represented by arrow a 4 from pressure fan 17 is by evaporator 18, then
Via air mixing door 21 by heating core 19, to adjust temperature.
The angle (aperture) of air mixing door 21 can change under the control of control unit 5, open and adjust through heating core 19
Air mass flow.
Settable air door 22~24 is distinguished in defrosting inflatable mouth 25, ventilation inflatable mouth 26 and foot's inflatable mouth 27.Air door
22~24 respective angle (aperture) can change under the control of control unit 5, and the air mass flow to 2 blowout of interior can be changed
Distribution.
Inlet valve 13, air mixing door 21 and air door 22~24 constitute the flow path 29 (path) for switching air flowing
Stream switching mechanism 30.In air cleaning unit 100, if the length of flow path, curvature or the flow by heating core 19 exist
It changes under the work of stream switching mechanism 30, then the flow path resistance applied to air stream can increase and decrease.In addition, with outside
The flow path resistance that the outside air that air induction port 11 is opened imports state is compared, and the inside that inner air introducing port 12 is opened is empty
The flow path resistance of gas recurrent state is small.Flow path resistance indoors 2 air pass through inner air as shown in arrow A2~A6
Introducing port 12, upstream-side channel 14, downstream-side channel 15 and defrosting inflatable mouth 25 and recycle inner air recurrent state under
For minimum.
But in air cleaning unit 100, it is exposed in the air comprising particle due to discharge electrode 50, thus it is micro-
Grain can be attached on discharge electrode 50.If the particle being attached in discharge electrode 50 is not departed from and is accumulated on discharge electrode 50
If, the ion generation amount N (output) of discharge electrode 50 can be reduced, and the purifying property of air can reduce.
As countermeasure, air cleaning unit 100 is configured to make to suck the electric discharge of the impact of air currents in pressure fan 17
Electrode 50 and remove particle.Make the impact of air currents discharge electrode 50 that flow velocity is improved compared with the operating status of accumulated particulate,
The particle accumulated accordingly can be detached from from discharge electrode 50 and is removed.
Control unit 5 judges to clean the cleaning opportunity of discharge electrode 50 according to the operating status under purification pattern
(timing), and during cleaning machine-cut is changed to the cleaning modes for improving the flow velocity for the air stream for striking against discharge electrode 50.
Control unit 5 has: for controlling the central processing unit (CPU) of the movement in each portion；Storage control program is for example schemed
The read-only memory (ROM) of 2A, Fig. 2 B and figure shown in Fig. 3 (map) etc.；And temporarily store particle concentration sensor 6 etc.
Detect the random access memory (RAM) of signal and various information.
Control unit 5 is sensed according to preset figure (map) and according at least to the air output of pressure fan 17, by particle concentration
Device 6 particle concentration detected and cleaning opportunity is judged by time t.
Fig. 2A and Fig. 2 B is to show according to the degradation characteristic of the ion generation amount N of discharge electrode 50 reduction by time t
Ion generation amount deterioration figure (map).In addition, the unit of ion generation amount N is, for example, " a/cc ".
The ion generation amount deterioration of Fig. 2A illustrates following characteristic: in the air output of pressure fan 17 High higher than median
(high level) and particle concentration be under three kinds of operating statuses of basic, normal, high steady state value, ion generation amount N according to by time t and
The characteristic of variation.The ion generation amount deterioration of Fig. 2 B illustrates following characteristic: lower than median in the air output of pressure fan 17
Low (low value) and particle concentration are under three kinds of operating statuses of basic, normal, high steady state value, and ion generation amount N is according to by the time
T and the characteristic changed.When with the operation of this purification pattern, particulate accumulation is on discharge electrode 50, the ion of discharge electrode 50
Yield N is gradually decreased.The degree of ion generation amount N reduction becomes larger as air output reduces, and as particle concentration increases
And become larger.In addition, the characteristic of multiple operating statuses can be stored in actual ion generation amount deterioration figure, and it is not limited to three kinds of operations
State.
Control unit 5 is found out in each operating status of air cleaning unit 100 according to above-mentioned ion generation amount deterioration figure
Runing time tn and ion generation amount N is reduced to the deterioration time ratio Fn (=tn/T) between the reference time T of specified value, when this
When the accumulated value Σ Fn of a little obtained deterioration time ratio Fn is " 1 ", it is judged as the cleaning opportunity for switching to cleaning modes.
For example, control unit 5 is judged as cleaning opportunity at the time of ion generation amount is reduced 5%.In air cleaning unit
100 run 30 minutes under certain operating status and ion generation amount reduce 5% in the case where, the reference time, T was set to 30
Minute.When the operating status has run 15 minutes, runing time tn is 15 minutes, and deterioration time ratio Fn is acquired according to the following formula.
Fn=tn/T=15/30=0.5
In this way, Fn is cumulatively added with further running under certain operating status after Fn is 0.5, become Σ at last
It is judged as cleaning opportunity at the time of Fn=1.
In addition, control unit 5 calculates when executing cleaning modes according to ion generation amount recovery figure set in advance
The execution time of cleaning modes is executed according to particle concentration out.
The ion generation amount of Fig. 3 restores to illustrate following characteristic: in three kinds that particle concentration is basic, normal, high steady state value
The characteristic that ion generation amount N is improved and restored by time t according to performed by cleaning modes under operating status.In addition, real
The characteristic of multiple operating statuses can be stored in the ion generation amount deterioration figure on border, and is not limited to three kinds of operating statuses.
Next, illustrating the above-mentioned control content of control unit 5 referring to flow chart shown in Fig. 4.
Firstly, in step sl, reading information below and signal.
The accumulated value Σ Fn having calculated that.In addition, air cleaning unit 100 when operation starts, Σ Fn=0.
Particle concentration signal.This is the signal of the particle concentration as detected by particle concentration sensor 6.
The working signal of pressure fan 17.This is corresponding with the air output of pressure fan 17, motor 20 work letter
Number (for example, voltage or frequency of the electric power supplied to motor 20).
Flow path switching signal.This is corresponding with the angle of inlet valve 13, air mixing door 21 and air door 23~24
Working signal.
Then, it enters step S2 and judges whether the working signal of motor 20 is " opening (on) ".Herein, as work
When making the stopping for the air cleaning unit 100 that signal is " shutdown (off) ", return to " beginning ".On the other hand, believe as work
Number for " unlatching " air cleaning unit 100 operation when, enter step S3.
In step s3, the reference time acquired based on ion generation amount deterioration figure shown in A and Fig. 2 B etc. according to fig. 2
T and runing time tn and with Fn=tn/T calculate deterioration time ratio Fn.
In step s 4, accumulated value Σ Fn is calculated according to institute's calculated deterioration time ratio Fn.
Then, it enters step S5 and judges whether accumulated value Σ Fn is " 1 " or more.Herein, when accumulated value Σ Fn is small
When " 1 ", return to " beginning ".On the other hand, when accumulated value Σ Fn is " 1 " or more, judge that cleaning opportunity has arrived, go forward side by side
Enter to step S6.
In step s 6, ion generation amount recovery figure according to Fig.3, executes clear calculating according to particle concentration
Sweep the execution time of mode.
Next in the step s 7, cleaning modes are switched to, and is executed under the calculated cleaning modes of institute and cleans mould
Formula.In addition, being " 0 " by the value resetting (reset) of accumulated value Σ Fn, and return to " beginning ".
Under cleaning modes, control below is carried out.
The air output of pressure fan 17 can be switched to the big setting wind of the maximum air supply rate more set than under purification pattern
Amount.
Stream switching mechanism 30 can be switched the angle of each door 13,21~24 and the flow path resistance to air stream become
It is small.For example, inlet valve 13 can be switched to the inner air that external air introducing ports 11 are closed and inner air introducing port 12 is opened
Import position.Air mixing door 21, which is switched to, is provided with the maximum refrigeration position that the heater flow path 28 of heating core 19 is closed.Wind
Door 23 can be switched to the position that defrosting inflatable mouth 25 is opened.
In this way, under cleaning modes, by reduce flow path resistance while the air output for making pressure fan 17 increases come
Improve the air velocity for hitting discharge electrode 50.It is accumulated as a result, in the particle on discharge electrode 50 in the air stream for hitting it
It is detached from and is removed from discharge electrode 50 under effect.
The case where Fig. 5 is the process time t shown when ion generation amount N is run according to air cleaning unit 100 and changes
Line Chart.
With the characteristic that characteristic shown in double dot dash line is when not carrying out the cleaning of discharge electrode 50 in Fig. 5, when with passing through
Between t it is elongated and particulate accumulation is on discharge electrode 50, ion generation amount N is gradually decreased accordingly.
In contrast, in air cleaning unit 100, as shown in solid lines in fig. 5, if with process time t process
Finally the cleaning opportunity that accumulated value Σ Fn is " 1 " or more has been arrived, then has executed cleaning modes.Air velocity is improved under cleaning modes
And the cleaning of discharge electrode 50 is carried out, restore ion generation amount N.In this way, cleaning modes are executed in the gap of purification pattern, thus
Ion generation amount N is maintained at the range of specified value or more.In addition, between cleaning modes are executed after executing cleaning modes again
Every can be changed according to particle concentration and air output.
As described above, control unit 5 executes flow chart shown in Fig. 4, thus according to the particle product in air under purification pattern
The accumulated value Σ Fn in the runing time tn on discharge electrode 50 is tired out to determine cleaning opportunity.Under cleaning modes, with purification
Mode makes impact of air currents discharge electrode 50 under the cleaning modes compared to the flow velocity for improving air stream.It is accumulated as a result, in electric discharge
The particle of electrode 50 is removed, to restore ion generation amount N.
But there is also the operating statuses for restoring ion generation amount N under purification pattern.Aerial particle concentration is low
To a certain degree and under the operating status of air velocity up to a certain degree, in the effect for the air stream for hitting discharge electrode 50
Under, accumulation can be detached from the particle on discharge electrode 50 and is removed, to restore ion generation amount N.
Corresponding to, there is also the operating status for restoring ion generation amount N, control unit 5 removes Fig. 4 institute under above-mentioned purification pattern
Flow chart shown in Fig. 8 can also be performed outside the flow chart shown.As described hereinafter, by executing flow chart shown in Fig. 8, root
The control on delay cleaning opportunity is carried out according to the runing time (recovery time tcn) of ion generation amount N is restored under purification pattern.
Hereinafter, illustrating the control content referring to Fig. 6 to Fig. 9.
Fig. 6 is reduction amount (the ion generation amount N reduction of discharge electrode 50 within the unit time for showing ion generation amount N
Ratio) the case where being changed according to the raising of air velocity performance plot.The reduction amount of ion generation amount N is according to particle concentration
For the air velocity in the operating status of A, B, C (basic, normal, high) raising and become smaller.Particle concentration lower than B operating status and
The operating status that air velocity improves becomes recovery region D1, the D2 of reduction amount less than 0 of ion generation amount N.Restoring region
In D1, D2, particle is removed from discharge electrode 50 with the air stream impinged upon on discharge electrode 50, to restore ion
Yield N.Control unit 5 executes purification pattern in restoring region D1 and is postponed according to the recovery of ion generation amount N
The control on cleaning opportunity.Control unit 5 executes cleaning modes in restoring region D2 and carries out the control for restoring ion generation amount N
System.
Fig. 7 is to show the ion generation amount N of discharge electrode 50 according to the ion production of the degradation characteristic of reduction by time t
Raw amount deterioration figure.Pressure fan 17 air output be Low (low) or High (height) and particle concentration be it is low, in or high steady state value
Operating status under, ion generation amount N according to by time t and gradually decrease.It is High (height) and particle concentration in air output
In the case where recovery region D1 continuation lower than above-mentioned operating status, particle is removed from discharge electrode 50, and thus ion produces
Raw amount N can keep maximum value and reduce not according to by time t.
Control unit 5 is found out using ion generation amount deterioration figure shown in Fig. 7 is removing the extensive of particle from discharge electrode 50
The recovery time tcn run and ion generation amount N restores to extensive between the reference recovery time Tc of specified value in multiple region D1
Multiple time ratio Fcn (=tcn/Tc).
When air cleaning unit 100 is run 30 minutes and ion generation amount 5% (specified value) of recovery in restoring region D1
Amount when, be set to 30 minutes with reference to recovery time Tc.When having run 15 minutes in restoring region D1, recovery time
Tcn is 15 minutes, and recovery time, ratio Fcn was acquired according to the following formula.
Fcn=tcn/Tc=15/30=0.5
Control unit 5 is judged as at the time of ion generation amount to be reduced to the amount of 5% (specified value) is switched to cleaning modes
Cleaning opportunity.The ion generation amount deterioration figure according to figure 7 of control unit 5 and find out fortune of the particulate accumulation on discharge electrode 50
Row time tn and ion generation amount N reduce deterioration time ratio the Fn (=tn/ between the reference time T of the amount of 5% (specified value)
T).When subtracting the value for restoring the recovery time ratio Fcn of recovery time tcn of region D1 from obtained deterioration time ratio Fn
When accumulated value Σ (Fn-Fcn) is " 1 ", it is judged as cleaning opportunity.
Next, illustrating above-mentioned control content referring to flow chart shown in Fig. 8.
Firstly, in step s 11, reading information below and signal.
The accumulated value Σ Fn-Fcn having calculated that.In addition, air cleaning unit 100 is when operation starts, Σ Fn-
Fcn=0.
Particle concentration signal.
The working signal of pressure fan 17.
Flow path switching signal.
Then, step S12 is entered, judges whether the working signal of motor 20 is " opening (on) ".Herein, as
When working signal is the stopping of the air cleaning unit 100 of " shutdown (off) ", return to " beginning ".On the other hand, as work
When signal is the operation of the air cleaning unit 100 of " unlatching ", step S13 is entered.
In step s 13, find out based on Fig. 7 it is equal shown in ion generation amount deterioration figure can acquire runing time tn,
Recovery time tcn.Deterioration time ratio Fn is calculated with Fn=tn/T according to runing time tn.It is used according to recovery time tcn
Fcn=tcn/Tc calculates recovery time ratio Fcn.Find out the value (Fn- that recovery time ratio Fcn is subtracted from deterioration time ratio Fn
Fcn)。
In step S14, calculates and cumulative add up is carried out within each unit time to obtained value (Fn-Fcn)
Value Σ (Fn-Fcn).
Then, step S15 is entered, judges whether accumulated value Σ (Fn-Fcn) is greater than " 0 ".Herein, as accumulated value Σ
(Fn-Fcn) for " 0 " when, then it is considered as ion generation amount N and has been restored to maximum value and has entered step S19, by accumulated value Σ
(Fn-Fcn) value resets to " 0 " and returns to " beginning ".
On the other hand, when accumulated value Σ Fn is greater than " 0 ", step S16 is entered, judges that accumulated value Σ (Fn-Fcn) is
No is " 1 " or more.Herein, it when accumulated value Σ Fn is less than " 1 ", returns to " beginning ".On the other hand, when accumulated value Σ Fn is
When more than " 1 ", judges that cleaning opportunity has arrived, enter step S17.
In step S17, ion generation amount recovery figure according to Fig.3, is executed clear calculating according to particle concentration
Sweep the execution time of mode.
In following step S18, cleaning modes are switched to, and execute within institute's calculated entire execution time
Cleaning modes.The value of accumulated value Σ (Fn-Fcn) is reset to " 0 ", and returns to " beginning ".
The feelings changed by time t when Fig. 9 is the operation for showing ion generation amount N according to air cleaning unit 100
The Line Chart of condition.
Section surrounded by the dotted line, which is in, in Fig. 9 restores in the D1 of region, the deterioration time of particulate accumulation from the section
The recovery time ratio Fcn being removed than subtracting particle in Fn.As a result, in the recovery time tcn's restored in the D1 of region
Increase and extends the time t for being transferred to cleaning modes.In this way, reducing the frequency for executing cleaning modes and making to execute purification pattern
Runing time is elongated, to realize the purification of air.
Next, concrete example of the explanatory diagram 10 to air cleaning unit 100 shown in Figure 14.
As shown in Figures 10 and 11, discharge electrode 50 is set as opposite with the air stream of suction draft machine 17.Discharge electrode
50 are set to the central portion of the upstream-side channel 14 of 16 upstream side of trap portion, and are configured to the Pivot axle with pressure fan 17
O17 is substantially orthogonal.
When air cleaning unit 100 is run, air stream and discharge electrode 50 generally perpendicularly strike against discharge electrode 50,
To can inhibit particulate accumulation in the situation on discharge electrode 50.Under purification pattern, even if in the state that air velocity is low
Particulate accumulation is temporarily accumulated in the state and making from discharge electrode 50 that air velocity raising on discharge electrode 50, can also be used
Particle is detached from and removes.The frequency for executing cleaning modes can be reduced as a result, or without executing cleaning modes.
Pressure fan 17 includes having with the fan body 41 of multiple blades of cylindrical arrangement and the shell for accommodating fan body 41
42.Fan body 41 is rotated centered on Pivot axle O17, and is blown to centrifugal direction.Shell 42 includes horn mouth (bell
Mouth) the suction inlet 42A of shape, for guiding air to the inside of fan body 41；The rectification part 42B of conch shape, for gather from
The air that fan body 41 is sent out；And outlet 42C (referring to Fig.1 2), for gathered air to be discharged.In addition, shell 42 can also
To be formed as one with framework 10.
Trap portion 16 is set to the upstream side of suction inlet 42A, and is configured to facing with shell 42.The filtering of trap portion 16
Device center line O16 is extended roughly in parallel and inclined relative to Pivot axle O17 relative to the Pivot axle O17 of pressure fan 17
It moves.
Inlet valve 13 is rotated centered on hinge axis 43.Hinge axis 43 exists relative to the Pivot axle O17 of pressure fan 17
Extend in substantially orthogonal plane with Pivot axle O17.
The front end 13A of the inlet valve 13 of plate is rotated and is had the arc-shaped track Q centered on hinge axis 43.Electric discharge
Electrode 50 is configured at the region between track Q and trap portion 16.It can avoid the work that discharge electrode 50 interferes inlet valve 13 as a result,
Make, and may be disposed at the upstream side of trap portion 16.
In upstream-side channel 14, by be clipped in inner air introducing port 12 open end and suction inlet 42A open end it
Between and be formed in region between the two as inner air ingress area 14A.Inner air ingress area 14A is for connecting
Space is formed by the inside of multiple straight line L of the opening edge of the opening edge and suction inlet 42A of inner air introducing port 12.
The inner air closed external air introducing ports 11 and open inner air introducing port 12 is in inlet valve 13 to lead
Under the working condition (inner air recurrent state) for entering position, the air from interior 2 is as indicated by arrow a 1 like that from internal empty
Flow path 14 flows into conductance entrance 12 to the upstream side.At this point, in upstream-side channel 14, from inner air introducing port 12 towards sucking
The mainstream of the air stream of mouth 42A flows in inner air ingress area 14A, thus the air of inner air ingress area 14A
Other regions of velocity ratio are high.
Discharge electrode 50 is configured at inner air ingress area 14A.The air velocity on discharge electrode 50 is impinged upon as a result,
It can be improved and obtain removal accumulation in the effect of the particle on discharge electrode 50.
In Figure 12, first axle parallel lines R17 be include pressure fan 17 Pivot axle O17 and with inlet valve 13
The straight line that hinge axis 43 extends roughly in parallel.Second hinge parallel lines R16 is the filter center line O16 for including trap portion 16
And the straight line extended roughly in parallel with the hinge axis of inlet valve 13 43.The cross-sectional region 14B in center is parallel to be clipped in first axle
Region between line R17 and second hinge parallel lines R16.The cross-sectional region 14B in center is the inner wall toward each other from framework 10
The separate region in the twocouese of face 10A, 10C direction orthogonal with hinge axis 43 (left and right directions in Figure 12).Therefore, flowing in
The flow velocity of the air stream of the cross-sectional region 14B in center is higher than the region near inner wall 10A, 10C, and air stream is intended for discharging
Electrode 50 velocity component (along pressure fan 17 Pivot axle O17 towards pressure fan 17 velocity component) can be mentioned
It is high.
Discharge electrode 50 is configured at the cross-sectional region 14B in center.The air stream impinged upon on discharge electrode 50 can be improved as a result,
Speed, and the directional velocity of air stream and discharge electrode 50 are substantially orthogonal and opposite with discharge electrode 50, therefore removal can be improved
It accumulates in the effect of the particle on discharge electrode 50.
In Figure 12, first axle cross line P17 be include pressure fan 17 Pivot axle O17 and with inlet valve 13
The straight line that extends of the substantially orthogonal direction of hinge axis 43.Second hinge cross line P16 is to include in the filter of trap portion 16
Heart line O16 and in the straight line extended with the substantially orthogonal direction of the hinge axis 43 of inlet valve 13.Central vertical profile region 14C is to be clipped in
Region between first axle cross line P17 and second hinge cross line P16.Central vertical profile region 14C be from framework 10 that
The separate area in the twocouese of this opposite inner wall 10B, 10D direction (up and down direction in Figure 12) parallel with hinge axis 43
Domain.Therefore, the height in region of the flowing near velocity ratio inner wall 10B, 10D of the air stream of central vertical profile region 14C, air
The velocity component that stream is intended for discharge electrode 50 can be improved.
Discharge electrode 50 is configured at central vertical profile region 14C.The air stream impinged upon on discharge electrode 50 can be improved as a result,
Speed, and the velocity component of air stream and discharge electrode 50 are substantially orthogonal and opposite with discharge electrode 50, therefore removal can be improved
It accumulates in the effect of the particle on discharge electrode 50.
Middle section 14D is the region that the cross-sectional region 14B in center intersects with center vertical profile region 14C.Middle section 14D from
Inner wall 10A~10D of 10 surrounding of framework is separate and faces the central portion of pressure fan 17.Therefore, air stream is towards electric discharge electricity
The velocity component of pole 50 highest in middle section 14D.
Discharge electrode 50 is configured at middle section 14D.The air velocity impinged upon on discharge electrode 50 can be improved as a result,
And the velocity component of the air stream towards discharge electrode 50 can be improved, therefore remove accumulation in the particle on discharge electrode 50
Effect highest.In turn, the particle of electrification is spread in the wide scope of trap portion 16, to can be improved because 16 bring of trap portion is net
Change performance.
Next, 3 and Figure 14 referring to Fig.1, is illustrated the mounting structure of discharge electrode 50.
As shown in figure 13, discharge electrode 50 is supported in framework 10 by rodlike bracket 51.Bracket 51 is configured to and cuts with scissors
Chain rivet 43 extends roughly in parallel.Discharge electrode 50 is set to the front end of bracket 51, and is configured in upstream-side channel 14
Centre portion.
As shown in figure 14, there are two harness 55 for receiving in bracket 51.Discharge electrode 50 is powered by two harness 55.
As shown in figure 13, idle loop (grommet) 52,53 and two screws 54 that the base end part of bracket 51 passes through annular
It is installed on the mounting portion 60 of framework 10.
The through hole 61 and a pair for being respectively screwed two screws 54 that there is mounting portion 60 bracket 51 to be penetrated through
Boss portion 62.
As shown in Figure 10, settable multiple (being here three) mounting portions 60 for mounting bracket 51 in framework 10.
Each mounting portion 60 is configured to arrange on the direction (left and right directions in Figure 10) substantially orthogonal with hinge axis 43.
Framework 10 is divided into the upper and lower component 8,9 for clipping mounting portion 60 and is formed.The component of upside about framework 10
9, such as select the component of the vehicle corresponding shape different from the position of steering wheel or so and be arranged.In this way, when according to vehicle
(type of vehicle) and when the shape difference of framework 10, the mounting portion 60 for mounting bracket 51 also can be changed.In this way, discharge electrode
50 installation site can change in a width direction of the vehicle.It, can be by electric discharge electricity accordingly, for the framework 10 of different vehicles
Pole 50 is set to suitable position.
In addition, changing the length of bracket 51 according to the shape of framework 10 or changing the shape of idle loop 52,53, thus put
The installation site of electrode 50 can also change on the front-rear direction of vehicle.
Next, the effect to present embodiment is illustrated.
According to the present embodiment, the air cleaning unit 100 for purifying air has: discharge electrode 50 generates in air
Ion；Trap portion 16, for trapping the particle charged by ion in air；And pressure fan 17, for flowing air
And trap portion 16 is made it through, pressure fan 17 generates air-flow and makes impact of air currents accumulation in the particle on discharge electrode 50.
Using this structure, impact of air currents simultaneously removes accumulation in the particle on discharge electrode 50.In this way, in discharge electrode
On 50, accumulated particle can remove without utilizing brush etc..Therefore, air cleaning unit 100 can utilize simple structure
To keep the purifying property of air.
Air cleaning unit 100 is configured to purify the purification pattern of air and mention generating ion from discharge electrode 50
Switch between the cleaning modes of the flow velocity of air stream of the height for hitting discharge electrode 50.
By this structure, particulate accumulation is in the situation on discharge electrode 50 under the low purification pattern of the flow velocity of air stream
Under, make impact of air currents discharge electrode 50 in the case where improving the cleaning modes of flow velocity of air stream compared with purification pattern and removes product
Tire out in the particle on discharge electrode 50.
It, can be in addition, the structure that the switching between purification pattern and cleaning modes is not limited by control unit 5 to carry out
It carries out manually.
In addition, air cleaning unit 100 has control unit 5, control unit 5 judges according to the operating status under purification pattern
It is switched to the cleaning opportunity of cleaning modes.
Using this structure, the ion that such as discharge electrode 50 is measured according to the operating status under purification pattern is generated
N (particulate accumulation amount) etc. is measured, judges cleaning opportunity accordingly.In this way, can be extended and executing cleaning modes in suitable period
Execute the runing time of purification pattern.
In addition, control unit 5 is according to preset figure (map) and according at least to the air-supply by time t, pressure fan 17
Amount, the parameter of particle concentration are come ion generation amount N (particulate accumulation amount) for measuring discharge electrode 50 etc., hereby it is possible to accurately sentence
Disconnected cleaning opportunity.In addition, be not limited to above-mentioned structure, can also for do not utilize figure and according to regression equation and according to identical
Parameter calculate ion generation amount N.
In addition, the ion generation amount N of the discharge electrode 50 in the operating status that control unit 5 is executed according to purification pattern rises
The recovery time tcn's (runing time) of (recovery) increases to postpone the cleaning opportunity of cleaning modes execution.
The runing time tn and ion generation amount N that control unit 5 finds out the ion generation amount N reduction of discharge electrode 50 reduce to
Deterioration time ratio Fn (=tn/T), ion generation amount N between the reference time T of specified value rise the recovery time of (recovery)
Tcn and ion generation amount N restore between the reference recovery time Tc of specified value recovery time ratio Fcn (=tcn/Tc), with
And the accumulated value Σ (Fn-Fcn) of the value of recovery time ratio Fcn is subtracted from deterioration time ratio Fn, as accumulated value Σ (Fn-Fcn)
When for specified value " 1 ", it is judged as cleaning opportunity.
Using this structure, removes and purifying from discharge electrode 50 under the action of hitting the air stream of discharge electrode 50
It temporarily accumulates in mode in the particle on discharge electrode 50, thus cleaning opportunity can be postponed.In this way, cleaning mould by reducing to execute
The frequency of formula keeps the runing time for executing purification pattern elongated, the purification of Lai Shixian air.
In addition, the air output of pressure fan 17 to be switched to the maximum more set than under purification pattern under cleaning modes
The bigger setting air quantity of air quantity.Accumulation can be quickly removed as a result, in the particle of discharge electrode 50.
In addition, switch flow path 29 using stream switching mechanism 30 in cleaning modes, so that sent out by pressure fan 17
The flow path resistance of air stream becomes smaller.
In addition, switch flow path 29 in cleaning modes, it is outer to be closed using the inlet valve 13 of stream switching mechanism 30
Portion's air induction port 11 and open inner air introducing port 12.
Using this structure, under cleaning modes, can make the flow path resistance for the air stream sent out by pressure fan 17 become smaller and
Improve the air velocity for hitting discharge electrode 50.Accumulation can be quickly removed as a result, in the particle of discharge electrode 50.
In addition, being not limited to above structure, may be also constructed to make a return journey with the big state of the air output under purification pattern
Except accumulation is in the particle of discharge electrode 50.
It is formed between the open end of inner air introducing port 12 and the open end of suction inlet 42A in addition, flow path 29 has
Inner air ingress area 14A.Discharge electrode 50 is configured in inner air ingress area 14A.
Using this structure, in upstream-side channel 14, from inner air introducing port 12 towards the air stream of suction inlet 42A
Mainstream crosses ingress area 14A in internal air stream, therefore the air velocity for hitting discharge electrode 50 can be improved, and removal can be improved
It accumulates in the effect of the particle of discharge electrode 50.
In addition, flow path 29 have be clipped in the Pivot axle O17 including pressure fan 17 and with the hinge axis of inlet valve 13 43
The first axle parallel lines R17 that the extends roughly in parallel and filter center line O16 for including trap portion 16 and with inlet valve 13
The second hinge parallel lines R16 that extends roughly in parallel of hinge axis 43 between the cross-sectional region 14B in center.Discharge electrode 50 can
It is configured at the cross-sectional region 14B in center.
Using this structure, in upstream-side channel 14, the air velocity for hitting discharge electrode 50, and air stream can be improved
Directional velocity and discharge electrode 50 it is substantially orthogonal and opposite with discharge electrode 50, therefore removal accumulation can be improved in discharge electrode
The effect of particle on 50.
In addition, flow path 29, which has, is clipped in the Pivot axle O17 including pressure fan 17 and in the hinge axis with inlet valve 13
The first axle cross line P17 that 43 substantially orthogonal directions the extend and filter center line O16 for including trap portion 16 and with
The central vertical profile region 14C for the second hinge cross line P16 that the substantially orthogonal direction of the hinge axis 43 of inlet valve 13 extends.Electric discharge
Electrode 50 is configured in central vertical profile region 14C.
Using this structure, in upstream-side channel 14, the air velocity for hitting discharge electrode 50, and air stream can be improved
Directional velocity and discharge electrode 50 it is substantially orthogonal and opposite with discharge electrode 50, therefore removal accumulation can be improved in discharge electrode
The effect of particle on 50.
More than, embodiments of the present invention are illustrated, but above embodiment illustrates only of the invention be applicable in
A part of example, it is not intended that technical scope of the invention is defined in the specific structure of above embodiment.
It present invention can be suitably applied to be equipped on the air cleaning unit in vehicle, but also to be suitable for use in the sky other than vehicle
In air purifying apparatus.
This application claims the applying date be on September 14th, 2016 to the Japan Patent Room submit Patent 2016-179649 with
And the priority of the Patent 2017-088417 submitted to the Japan Patent Room on April 27th, 2017, the full content of the application are logical
It crosses and is incorporated herein by reference.
Claims (12)
1. it is a kind of for purifying the air cleaning unit of air, have:
Discharge electrode, for generating ion in air；
Trap portion, for trapping the particle charged by ion in air；And
Pressure fan bypasses air through above-mentioned trap portion for flowing air,
Wherein, above-mentioned pressure fan generates air-flow and makes impact of air currents accumulation in the particle on above-mentioned discharge electrode.
2. according to right want 1 described in air cleaning unit, wherein
Above-mentioned air cleaning unit is allowed hand over as the purification pattern for purifying air and is improved for hitting above-mentioned electric discharge
The cleaning modes of the flow velocity of the air stream of electrode.
3. according to right want 2 described in air cleaning unit, be also equipped with control unit,
Above-mentioned control unit judges the cleaning opportunity for being switched to above-mentioned cleaning modes according to the operating status of above-mentioned purification pattern.
4. air cleaning unit according to claim 3, wherein
Above-mentioned control unit according at least to above-mentioned pressure fan run by the time, above-mentioned pressure fan air output, flow into and above-mentioned catch
The particle concentration of the air in collection portion judges above-mentioned cleaning opportunity.
5. according to right want 4 described in air cleaning unit, wherein
The increasing for the runing time that above-mentioned control unit rises according to the ion generation amount of the above-mentioned discharge electrode under above-mentioned purification pattern
Calais postpones above-mentioned cleaning opportunity.
6. according to right want 5 described in air cleaning unit, wherein
Above-mentioned control unit
The runing time and ion generation amount that find out the ion generation amount reduction of above-mentioned discharge electrode are reduced to the reference of specified value
Deterioration time ratio between time,
The recovery time and ion generation amount that the ion generation amount of above-mentioned discharge electrode rises restore to the reference of specified value to restore
Recovery time ratio between time and
The accumulated value of value from the above-mentioned deterioration time than subtracting above-mentioned recovery time ratio,
When above-mentioned accumulated value is specified value, it is judged as above-mentioned cleaning opportunity.
7. the air cleaning unit according to any one of claim 2 to 6, wherein
Under above-mentioned cleaning modes, the air output of above-mentioned pressure fan is switched to the maximum more set than under above-mentioned purification pattern
The bigger setting air quantity of air quantity.
8. the air cleaning unit according to any one of claim 2 to 7 is also equipped with the flow path for switching air flowing
Stream switching mechanism,
Wherein, under above-mentioned cleaning modes, above-mentioned stream switching mechanism switches above-mentioned flow path and makes the flow path resistance of air stream
Become smaller.
9. air cleaning unit according to claim 8, wherein
Above-mentioned stream switching mechanism has:
Inner air introducing port, for the indoor importing air from vehicle；
External air introducing ports, for importing air from the external of above-mentioned vehicle；And
Inlet valve, for being opened and closed said external air induction port and above-mentioned inner air introducing port,
Under above-mentioned cleaning modes, closes said external air induction port and open above-mentioned inner air introducing port.
10. air cleaning unit according to claim 9, wherein
Above-mentioned flow path has the open end of the suction inlet of the open end and above-mentioned pressure fan that are formed in above-mentioned inner air introducing port
Between inner air ingress area,
Above-mentioned discharge electrode is configured at above-mentioned inner air ingress area.
11. air cleaning unit according to claim 10, which is characterized in that
Above-mentioned pressure fan has the fan body rotated centered on Pivot axle,
Above-mentioned inlet valve is rotated centered on the hinge axis being configured on the face substantially orthogonal with above-mentioned Pivot axle,
Above-mentioned flow path, which has, to be clipped in including above-mentioned Pivot axle and the first axle that extends roughly in parallel with above-mentioned hinge axis
Parallel lines and the filter center line for including above-mentioned trap portion and the second hinge extended roughly in parallel with above-mentioned hinge axis is flat
The cross-sectional region in center between line,
Above-mentioned discharge electrode is configured at the above-mentioned cross-sectional region in center.
12. air cleaning unit according to claim 10, which is characterized in that
Above-mentioned pressure fan has the fan body rotated centered on Pivot axle,
Above-mentioned inlet valve is rotated centered on the hinge axis being configured on the face substantially orthogonal with above-mentioned Pivot axle,
Above-mentioned flow path, which has, to be clipped in including above-mentioned Pivot axle and in the extended with the substantially orthogonal direction of above-mentioned hinge axis
One hinge cross line extends with the filter center line for including above-mentioned trap portion and with the substantially orthogonal direction of above-mentioned hinge axis
Second hinge cross line between central vertical profile region,
Above-mentioned discharge electrode is configured at above-mentioned central vertical profile region.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-179649 | 2016-09-14 | ||
| JP2016179649 | 2016-09-14 | ||
| JP2017-088417 | 2017-04-27 | ||
| JP2017088417A JP2018047446A (en) | 2016-09-14 | 2017-04-27 | Air purification device |
| PCT/JP2017/030978 WO2018051783A1 (en) | 2016-09-14 | 2017-08-29 | Air purification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109689217A true CN109689217A (en) | 2019-04-26 |
Family
ID=61765748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780054060.3A Pending CN109689217A (en) | 2016-09-14 | 2017-08-29 | Air cleaning unit |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2018047446A (en) |
| CN (1) | CN109689217A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925889A (en) * | 2019-12-05 | 2020-03-27 | 上海东健净化股份有限公司 | Clean new trend processing system of many return strokes |
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| US5163983A (en) * | 1990-07-31 | 1992-11-17 | Samsung Electronics Co., Ltd. | Electronic air cleaner |
| JPH09150077A (en) * | 1995-11-28 | 1997-06-10 | Zexel Corp | Air purifying apparatus |
| JP3040679U (en) * | 1997-02-18 | 1997-08-26 | アシエ工業株式会社 | Electric dust collector |
| CN101104173A (en) * | 2006-05-02 | 2008-01-16 | 株式会社Trinc | Dust remover |
| JP5146334B2 (en) * | 2009-01-22 | 2013-02-20 | 株式会社日立プラントテクノロジー | Electric dust collector and scraper |
| DE202015000607U1 (en) * | 2014-01-27 | 2015-04-27 | Teknologian Tutkimuskeskus Vtt Oy | System for electric particle charging |
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| US20150343454A1 (en) * | 2014-06-03 | 2015-12-03 | Restless Noggins Design, Llc | Charged filtration system |
| CN105618268A (en) * | 2016-02-18 | 2016-06-01 | 长沙通发高新技术开发有限公司 | Polar plate arrangement structure for electric-bag composite or pure electric dust removal and dust removing method |
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2017
- 2017-04-27 JP JP2017088417A patent/JP2018047446A/en not_active Withdrawn
- 2017-08-29 CN CN201780054060.3A patent/CN109689217A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53130582A (en) * | 1977-04-19 | 1978-11-14 | Matsushita Electric Ind Co Ltd | Electric dust collector |
| US5163983A (en) * | 1990-07-31 | 1992-11-17 | Samsung Electronics Co., Ltd. | Electronic air cleaner |
| JPH09150077A (en) * | 1995-11-28 | 1997-06-10 | Zexel Corp | Air purifying apparatus |
| JP3040679U (en) * | 1997-02-18 | 1997-08-26 | アシエ工業株式会社 | Electric dust collector |
| CN101104173A (en) * | 2006-05-02 | 2008-01-16 | 株式会社Trinc | Dust remover |
| JP5146334B2 (en) * | 2009-01-22 | 2013-02-20 | 株式会社日立プラントテクノロジー | Electric dust collector and scraper |
| DE202015000607U1 (en) * | 2014-01-27 | 2015-04-27 | Teknologian Tutkimuskeskus Vtt Oy | System for electric particle charging |
| US20150343454A1 (en) * | 2014-06-03 | 2015-12-03 | Restless Noggins Design, Llc | Charged filtration system |
| CN104785372A (en) * | 2014-06-16 | 2015-07-22 | 山东盛华投资有限责任公司 | Dust collection electrode back-flushing filtering electrostatic precipitator |
| CN105618268A (en) * | 2016-02-18 | 2016-06-01 | 长沙通发高新技术开发有限公司 | Polar plate arrangement structure for electric-bag composite or pure electric dust removal and dust removing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925889A (en) * | 2019-12-05 | 2020-03-27 | 上海东健净化股份有限公司 | Clean new trend processing system of many return strokes |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2018047446A (en) | 2018-03-29 |
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Application publication date: 20190426 |