KR20170090254A - Air cleaner - Google Patents

Air cleaner Download PDF

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Publication number
KR20170090254A
KR20170090254A KR1020160010877A KR20160010877A KR20170090254A KR 20170090254 A KR20170090254 A KR 20170090254A KR 1020160010877 A KR1020160010877 A KR 1020160010877A KR 20160010877 A KR20160010877 A KR 20160010877A KR 20170090254 A KR20170090254 A KR 20170090254A
Authority
KR
South Korea
Prior art keywords
filter
air
brush
dust
roll filter
Prior art date
Application number
KR1020160010877A
Other languages
Korean (ko)
Other versions
KR101876224B1 (en
Inventor
홍현진
박찬정
김형태
김종민
최영광
이경환
Original Assignee
코웨이 주식회사
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 코웨이 주식회사 filed Critical 코웨이 주식회사
Priority to KR1020160010877A priority Critical patent/KR101876224B1/en
Priority to CN201780005729.XA priority patent/CN108474573B/en
Priority to US16/067,853 priority patent/US10888811B2/en
Priority to CN202010199748.4A priority patent/CN111365806B/en
Priority to PCT/KR2017/000110 priority patent/WO2017119721A1/en
Publication of KR20170090254A publication Critical patent/KR20170090254A/en
Application granted granted Critical
Publication of KR101876224B1 publication Critical patent/KR101876224B1/en

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    • B01D46/0065—
    • 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
    • B01D46/0005—Mounting of filtering elements within casings, housings or frames
    • B01D46/0006—Filter elements or cartridges installed in a drawer-like manner
    • 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
    • B01D46/0005—Mounting of filtering elements within casings, housings or frames
    • B01D46/0009—Tray-like arrangements of filters in a vessel
    • B01D46/0019—
    • 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
    • B01D46/28—Particle separators, e.g. dust precipitators, using filter brushes
    • 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
    • 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
    • B01D46/48—Removing dust other than cleaning filters, e.g. by using collecting trays
    • 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
    • B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
    • B01D46/528—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using wound sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/45—Gas separation or purification devices adapted for specific applications
    • B01D2259/4508—Gas separation or purification devices adapted for specific applications for cleaning air in buildings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2279/00—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
    • B01D2279/50—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for air conditioning

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

The present invention aims to provide an air purifying unit having a function of automatically cleaning a filter inside a device body. The air purifying unit according to an embodiment of the present invention comprises a housing having an air suction part and an air discharge part, a blowing fan provided inside the housing, and a filter part provided between the blowing fan and the air suction part, wherein the filter unit comprises an upper winding roller, a lower winding roller provided below the upper winding roller, a roll filter rotating by being wound around the upper winding roller and the lower winding roller in the form of a belt and collecting dust in the air, and an inner brush which brushes the dust collected on the inner surface of the roll filter.

Description

AIR CLEANER

The present invention relates to an air cleaning unit, and more particularly, to an air cleaning unit having an automatic cleaning function of a prefilter.

Generally, the ventilator and the air cleaner function to improve indoor air quality by purifying air flowing into the room or flowing into the room.

Among these ventilation devices and air cleaners, products having a filter (for example, a pre-filter) for removing large dust in the air are widely used.

The prefilter is a member of a breathable mesh type and performs a function of filtering a relatively large dust in the passing air.

However, when the prefilter is used for a long time, the dust collected in the prefilter accumulates and the filtration performance is lowered. Thus, the prefilter requires a cleaning operation to remove the dust collected on the surface to recover the filtration performance.

However, the ventilator and the air purifier according to the related art have inconveniences of use in which the user needs to separate the prefilter from the main body of the apparatus, clean it, and then reattach it.

It is an object of the present invention to provide an air purifying unit having a function of automatically cleaning a filter inside a main body of an apparatus, which is intended to solve at least part of the problems of the related art as described above.

According to an aspect of the present invention, there is provided an air conditioner comprising: a housing having an air inlet and an air outlet; a blowing fan provided inside the housing; The filter unit comprising: an upper winding roller; A lower winding roller provided below the upper winding roller; And a roll filter wound around the upper take-up roller and the lower take-up roller in the form of a belt and rotating and collecting dust in the air, wherein an inner brush for brushing the dust collected on the inner surface of the roll filter And an air-conditioning unit.

In one embodiment, the roll filter can be rotated so that the side on which the inner brush contacts is moved downward.

Further, in one embodiment, the inner brush may extend to both ends of the roll filter.

Further, in one embodiment, the inner brush may be inclined downwardly to one end of the roll filter so that the dust accumulated in the roll filter is brushed and then moved in one direction of the roll filter.

According to an embodiment of the present invention, a dust tray may be provided below the roll filter, which can be drawn out of the housing and stores dust falling from one end of the inner brush.

Further, in one embodiment, the inner brush may include a brush bristle formed at an angle to the one end of the roll filter in the brush body.

Further, in one embodiment, the dust tray may be provided with an outer brush for brushing the outer surface of the roll filter.

Further, in one embodiment, the inner brush may be provided such that one end thereof is disposed close to the upper end of the lower take-up roller.

Further, in one embodiment, a support frame rotatably coupled to the rotary shaft of the lower take-up roller and supporting the inner brush may be provided.

Further, in one embodiment, the support frame transmits a part of the rotational force of the rotation shaft of the lower take-up roller to the inner brush through a frictional force with the rotation axis of the lower take-up roller, It is possible to pressurize.

To this end, in one embodiment, the support frame may be rotatably coupled to the rotary shaft of the lower take-up roller with a predetermined rotational friction force.

Meanwhile, in one embodiment, the filter unit is provided between the air suction unit and the blowing fan to remove dust in the air flowing into the blowing fan.

The filter unit may constitute a pre-filter for removing large particles of dust.

In addition, the air purifying unit according to an embodiment of the present invention may include an air purifying filter provided between the blowing fan and the filter unit and purifying air passing through the filter unit.

According to the embodiment of the present invention having such a configuration, the effect of automatically cleaning the rotatable filter inside the apparatus can be obtained.

1 is a perspective view of an air purification unit according to an embodiment of the present invention.
2 is a side cross-sectional view of the air purification unit shown in Fig.
3 is a perspective view illustrating a state in which the air purifying filter and the dust tray included in the air purifying unit shown in FIG. 1 are drawn out from the housing.
FIG. 4 is a side sectional view showing an air cleaning operation of the air cleaning unit shown in FIG. 1. FIG.
5 is a perspective view showing a pre-filter, an inner brush, and an outer brush included in the air purifying unit shown in FIG.
6 is a plan view showing the inner brush shown in Fig.
7 is a side view showing the pre-filter, the inner brush, and the outer brush shown in Fig.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Furthermore, the singular forms "a", "an," and "the" include plural referents unless the context clearly dictates otherwise.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 to 7, an air purifying unit 100 according to an embodiment of the present invention will be described.

First, the air purifying unit 100 according to an embodiment of the present invention can be used as a ventilating apparatus for ventilating indoor air through air circulation between indoor and outdoor when a window is installed in an open space and installed in a window , And it can be used as an air purifier arranged inside the room to purify the indoor air.

Here, the window includes a window and a door, which means an entrance door, a window, a living room window, and a veranda window in which air can flow between the inside and the outside.

1 to 7, an air purifying unit 100 according to an embodiment of the present invention includes a housing 110, a blowing fan 120, a filter unit 130, an air purifying filter 140 A dust tray 150, an outer brush 160, and an inner brush 170. As shown in FIG.

The housing 110 constitutes an appearance of the air purifying unit 100 according to an embodiment of the present invention and includes a blowing fan 120, a filter unit 130, an air filter 140, and a dust tray 150 can be accommodated.

The housing 110 may include an air intake part 112 on one side (front or back) of which external air is sucked into the housing 110 and air on the other side (rear or front) And an air discharge portion 114 through which air is discharged to the outside.

The air intake part 112 may be provided with a suction louver 113a for opening and closing the air suction part 112. However, the present invention is not limited thereto, and a grill member for normally opening the air suction part 112 may be used .

The suction louver 113a opens the air suction unit 112 when the air purifier unit 100 according to the embodiment of the present invention is operated and when the operation of the air purifier unit 100 is stopped, 112 can be closed to prevent external foreign matter and dust from flowing into the housing 110.

For example, the suction louver 113a may include an operation motor 113b provided inside the housing 110 and a link member 113c for transmitting the power of the operation motor 113b to the suction louver 113a. can do.

In an embodiment, the air discharge part 114 may be provided with a grill member for preventing foreign matter from entering into the housing 110. However, the present invention is not limited to this, and the air suction part 112 112 may be provided.

The air blowing fan 120 is provided inside the housing 110 and the outside air is sucked into the housing 110 through the air sucking unit 112 and then returned through the air discharging unit 114 to the housing 110, It is possible to generate an air flow to be discharged to the outside.

The blowing fan 120 is not particularly limited and may be configured as a variety of known fan devices capable of adjusting the wind speed by controlling the rotational speed RPM of the blades.

2 and 4 show an embodiment in which the air blowing fan 120 is constituted by an axial flow fan that sucks air in the axial direction and discharges the air in the axial direction. However, the present invention is not limited thereto, and the blowing fan 120 may include a centrifugal fan, A fan, and a fan.

The filter unit 130 is provided between the air suction unit 112 and the air blowing fan 120 and can filter dust in the air sucked into the air suction unit 112.

The filter unit 130 includes an upper winding roller 132 disposed at the upper end of the blowing fan 120, a lower winding roller 134 disposed at a lower end of the blowing fan 120, And a roll filter 136 wound in a belt form on the take-up roller 132 and the lower take-up roller 134 and rotated.

In this configuration, the roll filter 136 can be rotated in accordance with the rotation of the upper take-up roller 132 and the lower take-up roller 134.

Further, in one embodiment, the roll filter 136 is disposed in front of the blowing fan 120 (in the direction in which air is sucked) through a structure wound in a belt form on the upper winding roller 132 and the lower winding roller 134 Two layers may be provided.

The roll filter 136, which is provided in two layers as described above, has an advantage of being excellent in dust filtering performance since dust can be filtered in a double manner.

In one embodiment, the filter portion 130 may constitute a pre-filter that removes large particles of dust and foreign matter. That is, the filter unit 130 can function as a filter for primarily filtering the air sucked into the housing 110 through the air suction unit 112.

For example, the roll filter 136 of the filter unit 130 may be formed of a mesh-type filter member that removes relatively large particles of dust. However, the present invention is not limited thereto and any type of filter member capable of removing dust and foreign matter Filter.

The filter unit 130 removes dust and foreign matter from the air introduced into the housing 110 to prevent the air purifying filter 140 and the blowing fan 120 provided at the rear from being contaminated by dust and foreign matter Can be performed.

The air purifying filter 140 is provided between the filter unit 130 and the blowing fan 120 so as to remove fine dust, odor, bacteria, viruses, etc. in the air passing through the filter unit 130.

For example, the air purifying filter 140 may be configured as a HEPA filter, but the present invention is not limited thereto. A single type of filter or a plurality of filters having different functions may be superimposed on each other .

In one embodiment, the air purifying filter 140 is mounted to the filter frame 142 and can be configured to be withdrawn to the outside of the housing 110. The filter frame 142 can be drawn into and drawn out of the housing 110 through a filter mounting groove 118 formed in the housing 110.

In such a configuration, the user can easily replace and clean the air purifying filter 140 by pulling out the filter frame 142 from the outside of the housing 110. If the user does not want to use the air purifying filter 140 The air purifying unit 100 may be used while the air purifying filter 140 is removed from the filter frame 142 and only the filter frame 142 is drawn into the housing 110. [

The dust tray 150 is provided below the roll filter 136 to store the dust falling after being collected by the roll filter 136.

In one embodiment, the dust tray 150 may be withdrawn to the outside of the housing 110.

To this end, in one embodiment, a tray mounting groove may be provided on one side of the housing 110 to open and draw the dust tray 150.

Although not shown, the air purifying unit 100 according to an embodiment of the present invention includes a sensor (not shown) for sensing the weight or accumulation height of dust stored in the dust tray 150, And a function of notifying the user of the dust removal time stored in the dust removing unit.

The outer brush 160 is provided in the dust tray 150 and may brush the outer surface of the roll filter 136 according to the rotation of the roll filter 136.

The outer brush 160 is provided so as to abut the outer surface of the roll filter 136 when the dust tray 150 is lifted into the housing 110 so that the roll brush 136 is rotated by the roll filter 136, The dust collected on the outer surface of the roll filter 136 can be collected by brushing the surface of the filter 136.

At this time, the dust collected by the outer brush 160 can be dropped and stored in the dust tray 150.

The outer brush 160 may function to automatically clean the roll filter 136 in the housing 110 when the air purifier unit 100 operates according to an embodiment of the present invention.

The inner brush 170 is provided to brush the dust collected on the inner surface of the roll filter 136.

That is, when the roll filter 136 rotates, the outer brush 160 brushes the dust collected on the outer surface of the roll filter 136, and the inner brush 170 rotates the inner surface of the roll filter 136 So that the roll filter 136 can be both brushed on both sides.

In one embodiment, the inner brush 170 is formed of a bar shaped brush body 172 and a brush body 172 formed on the brush body 172 toward the inner surface of the roll filter 136 to brush the inner surface of the roll filter 136 And a plurality of brush bristles 174 which are connected to each other.

Further, in one embodiment, the roll filter 136 can be rotated such that the side on which the inner brush 170 is contacted is moved downward. As a result, the dust collected on the inner surface of the roll filter 136 can be collected at the upper end of the inner brush 170.

The inner brush 170 may be configured as a straight bar extending to both ends of the roll filter 136. Thereby, the entire inner surface of the roll filter 136 can be brushed as the roll filter 136 rotates.

Further, in one embodiment, the inner brush 170 may be inclined downwardly to one end of the roll filter 136 as shown in FIG. The dust accumulated on the upper end of the inner brush 170 is moved in the direction of one end of the roll filter 136 along the slope of the inner brush 170 through the structure of inclining the lower end of the roll filter 136 downward And may be discharged to the outside of the roll filter 136 at one end of the inner brush 170.

The dust accumulated on the upper end of the inner brush 170 through the rotation of the roll filter 136 is subjected to a continuous downward load by the frictional force of the roll filter 136. Therefore, A small amount of dust can be moved to one end of the roll filter 136 along the inclined direction of the inner brush 170.

At this time, the dust discharged from the one end of the inner brush 170 to the outside of the roll filter 136 may fall and be stored in the dust tray 150.

Further, in one embodiment, the brush bristles 174 of the inner brush 170 may be formed to be inclined in the direction of one end of the roll filter 136 in the brush body 172 as shown in Fig. Accordingly, the dust accumulated on the upper end of the brush bristles 174 can smoothly move in the direction of one end of the roll filter 136 along the inclined direction of the plurality of brush bristles 174.

In order to minimize the inflow of dust falling from one end of the inner brush 170 to the inside of the roll filter 136 from below the inner brush 170, the inner brush 170 has one end wound around the lower winding roller 134 In the present embodiment.

A support frame 180 may be provided inside the housing 110 to support the inner brush 170 so that the inner brush 170 is located inside the roll filter 136.

In one embodiment, the support frame 180 may be rotatably coupled to the rotation axis 135 of the lower take-up roller 134 and may extend upward to be coupled to the brush body of the inner brush 170.

The support frame 180 is rotatably coupled to the rotation shaft 135 of the lower take-up roller 134 so that the support frame 180 can maintain its position even when the rotation shaft 135 of the lower take-up roller 134 is rotated.

The supporting frame 180 rotates a part of the rotational force of the rotating shaft 135 of the lower winding roller 134 to the inner brush 170 through the frictional force of the lower winding roller 134 with the rotating shaft 135. [ So that the inner brush 170 can be pressed against the inner surface of the roll filter 136.

7, since the rotating direction of the rotating shaft 135 of the lower winding roller 134 is the same as the rotating direction of the roll filter 136, the rotation of the rotating shaft 135 of the lower winding roller 134 The support frame 180 receives a part of the rotational force of the rotation shaft 135 and tries to rotate in the same direction as the rotation shaft 135.

At this time, the inner brush 170 can be pressed to the inner surface of the roll filter 136 by the force that the support frame 180 is intended to rotate.

To this end, the support frame 180 is rotatably coupled to the rotary shaft 135 of the lower take-up roller 134, and can be coupled to generate a predetermined frictional force therebetween.

The inner brush 170 that receives the rotational force of the lower winding roller 134 can maintain the state of being in contact with the inner surface of the roll filter 136 and is pressed against the inner surface of the roll filter 136, (136) can be brushed, so that the brushing performance is improved.

Further, in one embodiment, the support frame 180 may include an inner brush 170 to prevent dust falling into the dust tray 150 from entering the inside of the roll filter 136 from one end of the inner brush 170 And may be configured in a plate shape covering one end of the roll filter 136 in a section between the lower winding rollers 134.

The air purifying unit 100 according to an embodiment of the present invention as described above uses a rotating roll filter 136 as a pre-filter that primarily removes dust, and the inner surface of the roll filter 136 The inner brush 170 and the outer brush 160 capable of brushing the outer surface have the advantage that the roll filter 136 can be automatically cleaned inside the housing 110. [

The air purifying unit 100 according to an embodiment of the present invention may include an inner brush 170 brushing the inner surface of the roll filter 136 so as to be inclined to one side, It is possible to automatically discharge the dust to the outside of the roll filter 136 without a separate discharge device.

While the present invention has been particularly shown and described with reference to particular embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention as defined by the following claims I would like to make it clear.

100: air purification unit 110: housing
112: air suction portion 113a: suction louver
113b: operation motor 113c: link member
114: air discharging portion 116: filter mounting groove
118: tray mounting groove 120: blowing fan
130: filter part 132: upper winding roller
134: Lower winding roller 135:
136: Roll filter 140: Air filter
142: Filter frame 150: Dust tray
160: outer brush 170: inner brush
172: brush body 174: brush body
180: Support frame

Claims (14)

1. An air purifying unit comprising: a housing having an air suction portion and an air discharge portion; a blowing fan provided inside the housing; and a filter portion for purifying air flowing in the housing,
The filter unit includes:
An upper winding roller;
A lower winding roller provided below the upper winding roller; And
And a roll filter wound around the upper winding roller and the lower winding roller in the form of a belt and rotating and collecting dust in the air,
And an inner brush for brushing the dust collected on the inner surface of the roll filter.
The method according to claim 1,
Wherein the roll filter is rotated so that a surface, on which the inner brush is brought into contact, moves downward.
3. The method of claim 2,
And the inner brush extends to both ends of the roll filter.
3. The method of claim 2,
Wherein the inner brush is inclined downwardly to one end of the roll filter so that the dust accumulated in the roll filter is brushed and then moved in one direction of the roll filter.
5. The method of claim 4,
And a dust tray provided below the roll filter and capable of being drawn out to the outside of the housing and storing dust falling from one end of the inner brush.
5. The method of claim 4,
Wherein the inner brush includes a brush bristle formed to be inclined in a direction of one end of the roll filter in the brush body.
6. The method of claim 5,
Wherein the dust tray is provided with an outer brush for brushing the outer surface of the roll filter.
6. The method of claim 5,
And the inner brush is provided such that one end thereof is arranged close to the upper end of the lower take-up roller.
3. The method of claim 2,
And a support frame rotatably coupled to the rotary shaft of the lower take-up roller and supporting the inner brush.
10. The method of claim 9,
Wherein the support frame transmits part of the rotational force of the rotary shaft of the lower take-up roller to the inner brush through frictional force with the rotation axis of the lower take-up roller to press the inner brush against the inner surface of the roll filter.
11. The method of claim 10,
And the support frame is rotatably coupled to the rotary shaft of the lower take-up roller with a predetermined rotational friction force.
The method according to claim 1,
Wherein the filter unit is provided between the air suction unit and the blowing fan to remove dust in the air flowing into the blowing fan.
13. The method of claim 12,
And the filter unit constitutes a pre-filter for removing large particles of dust.
12. The method of claim 11,
And an air purifying filter provided between the blowing fan and the filter unit and purifying air passing through the filter unit.
KR1020160010877A 2016-01-05 2016-01-28 Air cleaner KR101876224B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1020160010877A KR101876224B1 (en) 2016-01-28 2016-01-28 Air cleaner
CN201780005729.XA CN108474573B (en) 2016-01-05 2017-01-04 Air cleaning unit and air cleaning/ventilating device including the same
US16/067,853 US10888811B2 (en) 2016-01-05 2017-01-04 Air purifying unit and air cleaning/ventilation device comprising same
CN202010199748.4A CN111365806B (en) 2016-01-05 2017-01-04 Air cleaning unit and air cleaning/ventilating device including the same
PCT/KR2017/000110 WO2017119721A1 (en) 2016-01-05 2017-01-04 Air purifying unit and air cleaning/ventilation device comprising same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160010877A KR101876224B1 (en) 2016-01-28 2016-01-28 Air cleaner

Publications (2)

Publication Number Publication Date
KR20170090254A true KR20170090254A (en) 2017-08-07
KR101876224B1 KR101876224B1 (en) 2018-07-10

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KR102041142B1 (en) * 2019-09-02 2019-11-06 영남엘이디 주식회사 Led street light control method with air purification system with automatic filter cleaning
KR20200021634A (en) 2018-08-21 2020-03-02 코웨이 주식회사 Cleaning unit for filter and air purifier having thereof
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CN114504887A (en) * 2022-03-18 2022-05-17 南通康净环保科技有限公司 Rapid Assembly device of air purification filter core
US20230158438A1 (en) * 2021-11-22 2023-05-25 GE Precision Healthcare LLC Method and system for automatically cleaning air filters of a medical imaging system
US12076684B2 (en) * 2021-11-22 2024-09-03 GE Precision Healthcare LLC Method and system for automatically cleaning air filters of a medical imaging system

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