CN1873334B - Air cleaner - Google Patents
Air cleaner Download PDFInfo
- Publication number
- CN1873334B CN1873334B CN2005100230288A CN200510023028A CN1873334B CN 1873334 B CN1873334 B CN 1873334B CN 2005100230288 A CN2005100230288 A CN 2005100230288A CN 200510023028 A CN200510023028 A CN 200510023028A CN 1873334 B CN1873334 B CN 1873334B
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- Prior art keywords
- motor
- air
- sensor
- structure unit
- filter
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 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
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
-
- 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
- B01D46/0002—Casings; Housings; Frame constructions
-
- 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
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0038—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions with means for influencing the odor, e.g. deodorizing substances
-
- 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
- B01D46/0039—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Ventilation (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides an air cleaner with good performance which can maintain a smaller installation space. The external shell (2) is equipped with motor, fan, and filter construction (25, 26), which are installed in upper and lower section; the air entry (8) and outlet (6) of said upper construction (25) and air entry (9) and outlet (7) of lower construction are installed separately. The motor (17, 22) of said upper and lower construction are controlled respectively, according to checking outlet of mobile objects detecting sensor (11) and air sensor (10). For example, upper motor (17) is drove according to detecting signal from sir sensor, and lower motor (22) is drove according to checking signal from mobile detecting sensor. By doing so, the air and mote in upper space can be effectively removed by upper construction and ash caused by human motion can be removed by lower construction.
Description
Technical field
The present invention relates to air purifier.
Background technology
All the time, air purifier floats on dust in air etc. as suction and is widely used with the device that purifies air.Air purifier has motor, fan and filter usually, drives fan by motor and rotates so that air is absorbed, and inhaled air by filter, in this way, is caught dust with filter and waited and purify air.Such air purifier is documented in the patent documentation 1.
This air purifier has control of dust with filter and deodorizing filter, makes air pass through these filters, can will be contained in dust in air and foul smell is removed.
Patent documentation 1: the spy opens the 2002-79018 communique
Yet, in the air purifier that above-mentioned patent documentation 1 is put down in writing, because control of dust becomes to overlap on the air purifier thickness direction with filter deployment with filter and deodorizing, become big so can produce the air purifier depth, the problem that area also can become greatly (needing the big place that is provided with) is set.
In addition,, further can consider to increase fan and filter, the big problem of area change is set but can occur air purifier this moment equally in order to improve the performance of air purifier.
Summary of the invention
The present invention is in order to solve the problem in the above-mentioned background technology, and purpose is to provide a kind of making to be provided with that area diminishes and well behaved air purifier.This is invented another purpose and is to provide a kind of air purifier that can efficiently purify air.
In order to achieve the above object, the invention provides a kind of air purifier, suck air by fan is rotated, and inhaled air is purified by the mode of filter, and discharge, it is characterized in that from exhaust outlet,
In the enclosure, to comprise that said motor, fan and structure of filter unit are divided into two sections and are configured to 2 respectively, on above-mentioned shell, be used for epimere construction unit air entry and exhaust outlet and be used for the air entry of construction unit of hypomere and exhaust outlet divides up and down respectively and is arranged, and have and detect the mobile quality testing survey sensor that mobile thing is used in gas concentration is used in the air gas sensor, the sensing chamber, according to the detection output of above-mentioned gas sensor and above-mentioned mobile quality testing survey sensor, control the driving of the motor of above-mentioned up-down structure unit respectively.
For example,, drive the motor of upper structure unit,, drive the motor of lower structure unit according to the detection signal of mobile quality testing survey sensor according to the detection signal of gas sensor.
Perhaps, detection signal according to gas sensor, compare the motor that more stresses to drive the upper structure unit with the motor of lower structure unit,, compare the motor that more stresses to drive the lower structure unit with the motor of upper structure unit according to the detection signal of mobile quality testing survey sensor.Further, detection signal according to gas sensor, compare the more motor of high-speed driving upper structure unit with the motor of lower structure unit,, compare the more motor of high-speed driving lower structure unit with the motor of upper structure unit according to the detection signal of mobile quality testing survey sensor.
In addition, according to relatively detection output rank bigger in the rank, the motor of control up-down structure unit are exported in the detection output rank of above-mentioned gas sensor and the detection that above-mentioned mobile quality testing is surveyed sensor.
Survey sensor as mobile quality testing, can illustration detect people's the sensor that moves by current pyroelectric infrared sensor.
According to the present invention, divide the two sections configuration owing to will comprise motor, fan and structure of filter unit, be used for epimere construction unit air entry and exhaust outlet and be used for the air entry of construction unit of hypomere and exhaust outlet divides up and down respectively and is arranged, so more air can be sucked and purifies from very big space, the air that purifies is arranged to very big space, can improve the usefulness of air purifier, the depth that also can prevent air purifier becomes big, thereby can keep the little space that is provided with.
In addition, because having in the air gas concentration detects with gas sensor and indoor mobile quality testing and surveys with mobile quality testing survey sensor, and the detection output of surveying sensor according to gas sensor and mobile quality testing, control the motor of up-down structure unit respectively, so can realize efficiently purpose with air cleaning.
For example,, drive the motor of upper structure unit, survey the detection signal of sensor, drive the motor of lower structure unit, then can efficiently purify air according to mobile quality testing if according to the detection signal of gas sensor.In other words, the gas and the thing followed micronic dust that produce when waiting when smoking swim in superjacent air space easily, detect gas componant according to gas sensor, the air of the superjacent air space of the dust that mostly has these gas componants and follow is sucked the upper structure unit and purify, they efficiently can be removed by this way.In addition, because people move, dust of saving bit by bit on the floor and pollen can waft and go up in the air, so, adopt mobile quality testing to survey sensor and detect moving of people, according to this mode, the air of the following side space that the dust that wafts and pollen are existed mostly attracts and purifies to the lower structure unit, can efficiently remove these dusts and pollen like this.
In addition, even detection signal according to gas sensor, compare the motor (for example high-speed driving) that more stresses to drive the upper structure unit with the motor of lower structure unit, survey the detection signal of sensor according to mobile quality testing, compare the motor (for example high-speed driving) that more stresses to drive the lower structure unit with the motor of upper structure unit, identical with above-mentioned situation, also can adopt the up-down structure unit, gas that produces during the smoking that many spaces up are floating etc. and thing followed micronic dust and the dust and the pollen that how fly up on the floating ground of side space are down effectively removed.
In addition, export the motor that detection output rank big in the rank is controlled the up-down structure unit, then can be fit to various air-polluting air cleanings efficiently according to the detection that the detection output rank and the mobile quality testing of comparison gas sensor are surveyed sensor.
Description of drawings
Fig. 1 is the front view of the related air purifier structure of expression embodiment of the present invention.
Fig. 2 is that expression air purifier shown in Figure 1 is along cutting off line A-A dissengaged positions figure.
Fig. 3 is the block diagram of expression air purifier major part electricity structure.
Fig. 4 is the general chart of each motor action of each sensor according to the present invention.
Among the figure:
The 1-air purifier, 2-shell, the last exhaust outlet of 6-, exhaust outlet under the 7-, the last air entry of 8-, air entry under the 9-, 10-gas sensor, 11-move quality testing and survey sensor, 14-micronic filter 15-odor removal filter, the last motor of 17-, 18-fan, the big grain of 19-dust filter, 20-pollen private filter, motor under the 22-, 23-fan, 25-upper structure unit, 26-lower structure unit.
The specific embodiment
Describe embodiments of the present invention below with reference to accompanying drawings in detail.Fig. 1 represents the front view of the related air purifier of an embodiment of the invention 1 structure.In addition, Fig. 2 is the figure of expression air purifier shown in Figure 11 along the state that cuts off line A-A cut-out.
Be formed with a plurality of elongated last air entries 8 that extend from top to the bottom of last header board 3 in the last header board 3.In addition, have gas sensor 10 and mobile quality testing in the inboard of last header board 3 and survey sensor 11.
As everyone knows, gas sensor 10 is to adopt metal-oxide semiconductor (MOS) formed, detects the sensor of the reducibility gas of generations such as smoking.As everyone knows, mobile quality testing is surveyed sensor 11 for being called as current pyroelectric infrared sensor, body surface by the recipient or the far infrared that clothing sent, on current pyroelectric infrared sensor, produce thermoelectric effect to detect people's the sensor that moves according to moving of people.
Be formed with a plurality of elongated air entries 9 down that extend from following header board 4 tops to bottom on the following header board 4.
As described later, last exhaust outlet 6 is to be used for the parts of this air being discharged with after last air entry 8 inhaled airs purify, from last air entry 8 inhaled airs in the fan of eddy current shape shown in Fig. 1 dotted line case 40 mobile and from exhaust outlet 6 discharges.As described later, following exhaust outlet 7 is to be used for the parts of this air being discharged with after down air entry 9 inhaled airs purify, and moves eddy current shape lower fan case 50 shown in Fig. 1 dotted line in and from following exhaust outlet 7 discharges from air entry 9 inhaled airs down.
In shell 2, be formed with last compartment 12 that occupies the first half in the shell 2 substantially that is spaced apart out and the following compartment 13 that occupies Lower Half in the shell 2 substantially that is spaced apart out.The front side of last compartment 12 is spaced apart by last header board 3.In addition, in last compartment 12,, have micronic filter 14 and odor removal filter 15 at the rear of last header board 3 given sizes.
Micronic filter 14 has can cover the formed size that goes up air entry 8 on the header board 3, is made of the high-performance filter that can catch micronic dust.Odor removal filter 15 has the size roughly the same with micronic filter 14, is made of the active carbon of adsorbable foul smell and the filter that can catch gas componant.And odor removal filter 15 is configured to overlap at shell 2 thickness directions with micronic filter 14.
In addition, have the sept 16 that constitutes a part that goes up fan case 40 in the last compartment 12, on this sept 16 motor 17 is installed.Go up in addition on the turning cylinder 17a of motor 17 fan 18 is installed.
Like this, the epimere in shell 2 has the last construction unit 25 that includes motor 17, fan 18, micronic filter 14 and odor removal filter 15.
The front side of following compartment 13 is by header board 4 is spaced apart down.In addition, in the following compartment 13,, have big grain dust filter 19 and pollen private filter 20 at the rear of the given size of descending header board 4.
Big grain dust filter 19 has can cover the size that is formed on down the following air entry 9 on the header board 4, is made of the filter that can catch big grain dust.That is, big grain dust filter 19 is the filter of Duoing than micronic filter 14 gaps, and comparatively speaking, micronic filter 14 is high performance filters, and big grain dust filter 19 is filters of low performance.
The size that pollen private filter 20 has and big grain dust filter 19 is roughly the same is made of the filter that can catch pollen.And pollen private filter 20 is configured to overlap at the thickness direction of shell 2 with big grain dust filter 19.
In addition, in the following compartment 13, have the sept 21 that constitutes lower fan case 50 parts, on this sept 21 motor 22 is installed down.Descend in addition on the turning cylinder 22a of motor 22 fan 23 is installed.
Like this, the hypomere in shell 2 has the following construction unit 26 that comprises following motor 22, fan 23, big grain dust filter 19 and pollen private filter 20.
Fig. 3 is the block diagram of electric structure of the major part of expression air purifier 1.Air purifier 1 has the control part 24 of control air purifier 1 each several part.Control part 24 comprises microcomputer, ROM and RAM etc.In addition, control part 24 receives the signal of surveying sensor 11 inputs from control operation plate 5, gas sensor 10 and mobile quality testing, according to these signals, and the show state of control operation plate 5, the driving of last motor 17 and following motor 22.
Therefore, user's operating operation plate 5, behind the power supply opening with air purifier 1, gas sensor 10 and mobile quality testing are surveyed sensor 11 and are just begun to detect pollutant component in the air.The following describes running action based on the detection output of this two sensors 10,11.
When gas sensor 10 detected airborne gas componant, last motor 17 was actuated to drive fan 18 and rotates.And by last air entry 8, the outer air of machine is inhaled into compartment 12.At this moment, air is cleaned by micronic filter 14 and odor removal filter 15.And the air that is cleaned is discharged from last exhaust outlet 6.
The gas and the thing followed micronic dust that produce during smoking etc. are easy to swim in superjacent air space, by detecting gas componant by gas sensor 10, the air of the superjacent air space that these gas componants and the dust followed are existed is mostly inhaled to upper structure unit 25 and is purified, by this way, can efficiently they be removed.Become big if detect the speed of motor 17 in big (along with the gas concentration uprises) control of output change along with gas sensor 10, can more efficiently remove them.
In addition, survey sensor 11 1 when mobile quality testing and detect moving of human body, following motor 22 just is driven and drives fan 23 rotations.And by following air entry 9, the outer air of machine is inhaled into down compartment 13.At this moment, air is cleaned by big grain dust filter 19 and pollen private filter 20.And the air that is cleaned is from exhaust outlet 7 discharges down.
If people move, dust and the pollen saved bit by bit on the floor can waft up, so, detect moving of people by survey sensor 11 by mobile quality testing, the air of dust that will waft up and the pollen following side spaces that exist is inhaled and is purified to lower structure unit 26 more, by this way, can efficiently remove these pollen and dust.Become big (mobile frequency conversion is numerous) if survey the detection output of body sensor 11 along with mobile quality testing, the speed of following motor 22 is controlled as at a high speed, then can more efficiently remove them.
In action 1, detection signal according to gas sensor 10, and according to mobile quality testing survey sensor 11 detection signals, select to drive the motor 22 of upper structure unit motor 17 and lower structure unit respectively, but in action 2, detection signal according to gas sensor 10, compare with lower structure unit motor 22, emphasis drives upper structure unit motor 17, survey the detection signal of sensor 11 according to mobile quality testing, compare with upper structure unit motor 17, emphasis drives the motor 22 of lower structure unit.
Particularly, the action of expression in the execution graph 4.Promptly, gas sensor 10 detects rank and is set to 4 ranks (numerical value atmospheric concentration more is high more), motor 17,22 stops together about when rank is " 0 " (non-toxic gas pollutional condition in the air), rank only makes motor 17 slowly run with minimum speed when being " 1 ", rank makes motor 17 rotate with the middling speed higher than the rotating speed that slowly runs when being " 2 ", motor 22 is slowly run.Like this, the air of the superjacent air space that gas componant and the micronic dust of following exist is mostly mainly inhaled to upper structure unit 25 and is purified, and can efficiently remove them.
In addition, the situation of rank when " 3 " be, pollute disperse and be full of in whole room, up and down motor 17,22 together middling speed rotate, still, also can go up the high speed rotating of motor 17, and motor 22 rotates with middling speed down with maximum speed.
In addition, the detection rank that mobile quality testing is surveyed sensor 11 also is set at 4 ranks (the big more mobile thing of numerical value (human body) moves frequent more), rank is " 0 " (nobody, almost not mobile situation) motor 17,22 stops together about the time, rank only makes down motor 22 slowly run with minimum speed when being " 1 ", rank makes down motor 22 rotate with the middling speed higher than the rotating speed that slowly runs when being " 2 ", motor 17 is slowly run.Like this, the air of the following side space that dust that floats up from the floor because people move and pollen exist is mostly mainly inhaled to lower structure unit 26 and is purified, and can efficiently remove them.
In addition, the situation of rank when " 3 " be, dust etc. hike up disperse and are full of in whole room, up and down motor 17,22 together middling speed rotate, still, also can descend the high speed rotating of motor 22 with maximum speed, last motor 17 rotates with middling speed.
Survey the situation that sensor 11 detects gas concentration and mobile thing together at gas sensor 10 and mobile quality testing, it detects rank and turns round according to a big side.For example, it is " 2 " that gas sensor 10 detects rank, and when mobile quality testing survey sensor 11 detection ranks were " 1 ", according to gas sensor 10, middling speed was rotated and gone up motor 17, and motor 22 down slowly runs.
Survey the detection level of sensor 11 when identical at gas sensor 10 and mobile quality testing, motor 17,22 rotates with same rotational speed up and down, for example both to detect rank all be the occasion of " 2 ", motor 17,22 rotates with middling speed jointly up and down.
According to above-mentioned action 1 and action 2, can realize the effective air cleaning that various air pollutions all are fit to.
In addition, because upper structure unit 25 and lower structure unit two sections configuration in 26 fens, be used for epimere construction unit air entry 8 and exhaust outlet 6 and be used for the air entry 9 of construction unit of hypomere and exhaust outlet 7 divides up and down respectively and is arranged, so more air can be sucked from the broad space and purifies, the air that purifies is arranged to the broad space, can be improved the usefulness of air purifier.Not only can improve usefulness, can prevent that also the depth of air purifier from becoming big, and can keep the little space that is provided with.
In addition, in the foregoing description structure, because the high relatively filter of employing performance is micronic filter 14 and adopts the promptly big grain dust of the low relatively filter of performance filter 19 in lower structure unit 26 in upper structure unit 25, so can efficiently purify air.In other words, little dust etc. can be caught by the micronic filter 14 of upper structure unit 25 reliably, and big dust etc. also can be caught by the big grain dust filter 19 of lower structure unit 26 fully.Therefore but efficient allocation is used filter.In addition, compare the situation of all using micronic filter 14 in upper structure unit 25 and lower structure unit 26, can reduce micronic filter 14 quantity, reduce cost.
Above-mentioned explanation is used to explain the present invention, should not be interpreted as limiting the invention of putting down in writing in the technical scheme, perhaps reduces the scope.In addition, each several part structure of the present invention is not limited to the foregoing description, can make various distortion in the technical scope of technical scheme record.
For example, although upper structure unit 25 and lower structure unit 26 adopt filter separately respectively, also can shared same filter.At this moment, the operation panel 5 that is provided with of shell 2 central portions also can be arranged on the top or the sidepiece of shell.
Although the exhaust outlet 6,7 of upper structure unit 25 and lower structure unit 26 is divided right and left in addition, but separately also can up and down, it is not particularly limited the necessity in place, for example, also upper structure unit 25 exhaust outlets can be located at shell 2 above, the exhaust outlet of lower structure unit 26 is arranged on these two places, the left and right sides of shell 2.In addition, although the air entry 8,9 of upper structure unit 25 and lower structure unit 26 also is arranged on the front of shell 2 basically across integral body, need not limit especially, it separately also can up and down.
In addition, survey sensor 11 as mobile quality testing, although adopt current pyroelectric infrared sensor, also hyperacoustic Doppler effect of reflecting of the human body that can adopt the sonac utilization to move detects moving of people.
Claims (3)
1. an air purifier sucks air by fan is rotated, and inhaled air is purified by the mode of filter, and discharges from exhaust outlet, it is characterized in that,
In the enclosure, to comprise described motor, fan and structure of filter unit are divided into two sections and are configured to 2 respectively, on described shell, be used for epimere construction unit air entry and exhaust outlet and be used for the air entry of construction unit of hypomere and exhaust outlet divides up and down respectively and is arranged, and have and detect the gas sensor that gas concentration is used in the air, the mobile quality testing that mobile thing is used in the sensing chamber is surveyed sensor, drive the motor of upper structure unit according to the detection signal of described gas sensor, the detection signal of surveying sensor according to described mobile quality testing drives the motor of lower structure unit.
2. an air purifier sucks air by fan is rotated, and inhaled air is purified by the mode of filter, and discharges from exhaust outlet, it is characterized in that,
In the enclosure, to comprise described motor, fan and structure of filter unit are divided into two sections and are configured to 2 respectively, on described shell, be used for epimere construction unit air entry and exhaust outlet and be used for the air entry of construction unit of hypomere and exhaust outlet divides up and down respectively and is arranged, and have and detect the gas sensor that gas concentration is used in the air, the mobile quality testing that mobile thing is used in the sensing chamber is surveyed sensor, detection signal according to described gas sensor, compare with the motor of lower structure unit, emphasis drives the motor of upper structure unit, survey the detection signal of sensor according to described mobile quality testing, compare with the motor of upper structure unit, emphasis drives the motor of lower structure unit.
3. as air purifier as described in the claim 2, it is characterized in that, detection signal according to described gas sensor, compare the more motor of high-speed driving upper structure unit with the motor of lower structure unit, according to the detection signal of described mobile quality testing survey sensor, compare the more motor of high-speed driving lower structure unit with the motor of upper structure unit.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005163741A JP4493550B2 (en) | 2005-06-03 | 2005-06-03 | Air cleaner |
| JP2005163741 | 2005-06-03 | ||
| JP2005-163741 | 2005-06-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1873334A CN1873334A (en) | 2006-12-06 |
| CN1873334B true CN1873334B (en) | 2010-04-28 |
Family
ID=37483881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005100230288A Expired - Fee Related CN1873334B (en) | 2005-06-03 | 2005-10-26 | Air cleaner |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4493550B2 (en) |
| KR (1) | KR100655364B1 (en) |
| CN (1) | CN1873334B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016050685A (en) * | 2014-08-29 | 2016-04-11 | 日立アプライアンス株式会社 | Air cleaner |
| US20180283707A1 (en) * | 2015-09-30 | 2018-10-04 | Koninklijke Philips N.V. | Gas filtration system and method |
| KR101948003B1 (en) * | 2016-01-05 | 2019-02-14 | 코웨이 주식회사 | Apparatus for air cleaning and ventilation |
| CN111365806B (en) | 2016-01-05 | 2022-01-14 | 豪威株式会社 | Air cleaning unit and air cleaning/ventilating device including the same |
| CN107158843A (en) * | 2017-06-29 | 2017-09-15 | 宿州冬宇环保科技有限公司 | A kind of filter cartridge type cleaner |
| KR102576035B1 (en) | 2017-09-05 | 2023-09-08 | 삼성전자주식회사 | Air purifier and controlling method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1291524A (en) * | 1999-08-31 | 2001-04-18 | 松下电工株式会社 | Air purifier |
| CN1510348A (en) * | 2002-12-23 | 2004-07-07 | ���ǵ�����ʽ���� | Air purifier |
-
2005
- 2005-06-03 JP JP2005163741A patent/JP4493550B2/en not_active Expired - Fee Related
- 2005-10-26 CN CN2005100230288A patent/CN1873334B/en not_active Expired - Fee Related
- 2005-11-15 KR KR1020050108829A patent/KR100655364B1/en not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1291524A (en) * | 1999-08-31 | 2001-04-18 | 松下电工株式会社 | Air purifier |
| CN1510348A (en) * | 2002-12-23 | 2004-07-07 | ���ǵ�����ʽ���� | Air purifier |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20060126343A (en) | 2006-12-07 |
| JP4493550B2 (en) | 2010-06-30 |
| KR100655364B1 (en) | 2006-12-08 |
| JP2006336957A (en) | 2006-12-14 |
| CN1873334A (en) | 2006-12-06 |
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