WO2021167439A1

WO2021167439A1 - Air purifier

Info

Publication number: WO2021167439A1
Application number: PCT/KR2021/095012
Authority: WO
Inventors: 이민하; 백승호; 권희재; 정순호
Original assignee: 엘지전자 주식회사
Priority date: 2020-02-19
Filing date: 2021-01-20
Publication date: 2021-08-26
Also published as: DE112021001097T5; KR20210105603A; US20230075829A1

Abstract

The present embodiment may comprise: a housing that has a suction port, a space formed therein, and a discharge port formed in an upper portion thereof; a purification unit and a blowing unit accommodated in the space; a discharge guide that is disposed in an upper portion of the housing and discharges and guides blown air to the discharge port; a tilting mechanism that is connected to the discharge guide to tilt the discharge guide; and a lifting and lowering mechanism that lifts and lowers the tilting mechanism.

Description

air cleaner

The present invention relates to an air purifier, and more particularly, to an air purifier in which air purified by a purification unit can be discharged into various air streams.

An air purifier is a device that is provided in homes, offices, and public offices to purify indoor air.

The air purifier may include a blowing unit for flowing air and a purification unit such as a filter.

Depending on the installation location, the air purifier is divided into a ceiling-mounted air purifier that is mounted on the ceiling or connected to a wire extending downward from the ceiling, a wall-mounted air purifier that is mounted on the wall, and a standing-type air purifier that is used while standing on the floor in a room. can be classified.

One example of the ceiling-type air purifier may have a lower surface suction port through which air is sucked in, and an upper surface discharge port through which air is discharged on the upper surface may be formed, and a blowing unit and a purification unit may be disposed therein. of the air may be sucked into the air purifier through the lower suction port and purified by the purification unit, and the air purified by the purification unit may be discharged to the upper side of the air purifier through the upper discharge port.

Among the air purifiers, an air purifier having a flow path structure of bottom suction/top discharge may gradually accumulate foreign substances such as dust around the air purifier (hereinafter referred to as dust) on the top surface of the air purifier while the operation is stopped. When the operation of the purifier is restarted, the dust accumulated on the top surface of the air purifier may be moved by the air blown upward from the air purifier and scattered around the air purifier.

On the other hand, the air purifier sucks air to the lower surface to purify it, and it is also possible to discharge the purified air in the side direction instead of the upper side. notice) is disclosed.

The air purifier disclosed in Republic of Korea Patent Registration No. 10-1176565 (published on August 23, 2012) has outlets formed on the side plates of the upper and lower frames, and the air purified in the purification unit is discharged in the lateral direction of the upper and lower frames through the outlets. can be ejected.

In the air purifier according to the prior art, since the air purified by the purification unit is horizontally discharged in four directions in the front, rear, left, and rear of the upper and lower frames through the outlet, the purified air is concentrated in a specific direction from the air purifier. It is not easy to become, and it is not easy to divert the airflow in various directions.

An object of the present invention is to provide an air purifier in which the discharge direction of purified air from a purification unit can be switched to various directions.

Another object of the present invention is to provide an air purifier capable of forming a concentrated discharge air stream with a simple structure.

In the air purifier according to an embodiment of the present invention, a discharge port may be formed on an upper portion of a housing, and a discharge guide may be disposed on the housing. The ejection guide can be raised and lowered. The ejection guide may be tilted.

A suction port may be formed in the housing, and a space may be formed in the housing.

A purification unit and a blowing unit may be accommodated in the space.

The discharge guide may be disposed on the upper portion of the housing and guide the discharge of the blown air through the discharge port.

The air purifier may include a tilting mechanism for tilting the discharge guide. The air purifier may further include an elevating mechanism for elevating the discharge guide.

The discharge port may be opened at the upper portion of the housing in the vertical direction, and the air blown by the blowing unit may be discharged in the upward direction through the discharge port.

The discharge guide may be larger than the discharge hole. The edge of the discharge guide may face the periphery of the discharge port in the vertical direction.

The discharge guide may cover the discharge port on the discharge port. The discharge guide may include a lower guide surface for guiding the air blown from the discharge port. The discharge guide and the lower guide surface may face the discharge port and space.

The air passing through the discharge port may be guided along the lower guide surface, and the air flow may be switched in a direction in which the discharge guide guides.

The discharge guide may be raised or tilted from above on the housing, and a gap through which the air discharged through the discharge port may pass may be formed between the discharge guide and the upper portion of the housing.

A gap between the upper portion of the housing and the discharge guide may be opened in a horizontal direction, and the area of the gap may be varied by a height and a tilting angle of the discharge guide.

The housing may include a curved surface formed around the outlet. The housing may further include a pair of side surfaces extending from the curved surface.

The housing may include a left curved surface on the left side of the discharge hole and a right curved surface on the right side of the discharge hole.

The pair of side surfaces may be formed to gradually move away from each other toward the lower side.

The width of the housing in the left and right directions may gradually increase in the downward direction.

The housing includes: a discharge body having an open bottom and a discharge port formed at the top; It may include an inlet guide disposed under the discharge body.

The housing may include a hanger connector disposed on at least one of the discharge body and the inlet guide and connected to a hanger unit installed on the ceiling.

The discharge body may include an upper curved portion in which the discharge port is opened in the vertical direction and a curved surface is formed around the discharge port, a left inclined portion extending from a lower left side of the upper curved portion, and a right inclined portion extending from a right lower end of the upper curved portion.

The left inclined portion and the right inclined portion may be formed to be farther apart from each other in a downward direction.

The discharge guide may include a vane having a size larger than that of the discharge port, and a connector protruding from the lower surface of the vane and connected to the horizontal axis of the tilting mechanism to be tilted around a flat axis.

The tilting mechanism may be connected to the discharge guide, and the elevating mechanism may elevate the discharge guide by elevating the tilting mechanism. The lifting mechanism may be connected to the tilting mechanism.

The lifting mechanism may include a carrier on which the tilting mechanism is mounted, a rack formed on the carrier, a pinion engaged with the rack, and a lifting motor installed in the housing and rotating the pinion.

The air purifier may further include a controller for controlling the tilting mechanism and the lifting mechanism in a plurality of modes.

The plurality of modes may include a pop-up mode and a downdraft mode.

The pop-up mode may be a mode in which the discharge guide is raised to a first height.

The descending airflow mode may be a mode in which the discharge guide is lowered to a second height lower than the first height.

The second height may be a height at which the air guided to the discharge guide forms a Coanda airflow along a curved surface formed around the discharge port. The second height may be a height at which the lower guide surface does not contact the curved surface.

The plurality of modes may include a left concentrated discharge mode and a right concentrated discharge mode.

In the left concentrated discharge mode, the distance between the left end and the left curved surface of the discharge guide may be longer than the distance between the right end and the right curved surface of the discharge guide.

In the right concentrated discharge cap, the distance between the right end and the right curved surface of the discharge guide may be longer than the distance between the left end and the left curved surface of the discharge guide.

The air purifier may further include a sensor for sensing the indoor pollution level, and a controller for controlling the tilting mechanism and the lifting mechanism according to the pollution level sensed by the sensor.

When the pollution level sensed by the sensor is within a set range, the controller may control the tilting mechanism and the elevating mechanism so that the discharge guide guides air toward the area where the sensor is located.

According to an embodiment of the present invention, in the pop-up mode in which the discharge guide is raised, the air discharged through the discharge port may be discharged while spreading widely in the vertical direction through a large gap formed between the upper portion of the housing and the discharge guide, and to the purification unit. The air purified by the air purifier can be spread evenly over a large area around the air purifier.

In addition, in the descending airflow mode in which the discharge guide is lowered, the air discharged through the discharge port may be guided to a curved surface formed around the discharge port while passing through a small gap formed between the upper portion of the housing and the discharge guide, and the air discharged through the discharge port is curved. Due to the Coanda effect by

In addition, when the discharge guide is tilted to the left or right by the tilting mechanism, the air purified by the purification unit can be concentratedly discharged to one of the left and right sides with respect to the air purifier, and a specific area of the room can be moved more quickly. can be purified

1 is a perspective view of an air purifier according to an embodiment of the present invention;

2 is a plan view of an air purifier according to an embodiment of the present invention;

3 is a cross-sectional view of an air purifier according to an embodiment of the present invention;

4 is a side view showing the inside of the air purifier shown in FIG. 1;

5 is a front view when the air purifier shown in FIG. 1 discharges an air stream;

6 is a front view when the discharge guide shown in FIG. 1 is lowered;

7 is a front view when the discharge guide shown in FIG. 1 is tilted to one side;

8 is a front view when the discharge guide shown in FIG. 1 is tilted to the other side;

9 is a control block diagram of an air purifier according to an embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described in detail with drawings.

1 is a perspective view of an air purifier according to an embodiment of the present invention, FIG. 2 is a plan view of the air purifier according to an embodiment of the present invention, FIG. 3 is a cross-sectional view of the air purifier according to an embodiment of the present invention, and FIG. 4 is a side view showing the inside of the air purifier shown in FIG. 1 .

The air purifier may include a housing 1 , a purification unit 2 , a blowing unit 3 , a discharge guide 4 , a tilting mechanism 5 , and a lifting mechanism 6 .

The housing (1), the purification unit (2), the blowing unit (3), the discharge guide (4), the tilting mechanism (5), and the lifting mechanism (6) are an assembly (A, hereinafter, the cleaning module (A)) ), and the clean module (A) may be installed to be suspended from the ceiling (C, see FIGS. 5 to 8).

The housing 1 may form the exterior of the air purifier. An inlet 11 and an outlet 12 may be formed in the housing 1 , and a space S may be formed in the housing 1 .

The inlet 11 may be formed in the lower portion of the housing 1 or may be formed in the front portion or the rear portion. The suction port 11 may be formed to be opened to the housing 1 in the vertical direction (Z), the left-right direction (X), or the front-rear direction (Y).

The discharge port 12 may be formed on the upper portion of the housing 1 . The discharge port 12 may be opened on the upper portion of the housing 1 in the vertical direction (Z). The discharge port 12 may be formed at a higher height than the upper end of the suction port 11 .

The purification unit 2 may be accommodated in the space S, as shown in FIG. 3 . The purification unit 2 may include a filter accommodated in the space S, and an example of such a filter includes a high-performance filter such as a HEPA filter, a humidifying filter that absorbs moisture, or a charging unit (or an ionizing unit). ) or an electrostatic precipitation filter having a dust collecting unit, or a renewable zeolite filter or the like.

As long as the purification unit 2 is configured to purify air, it is not limited to its operation method and may be applied to all.

A pair of purification units 2 may be accommodated in the space S. A pair of

purification units

22 and 24 may be disposed to be spaced apart from each other in the space S. A pair of

purification units

22 and 24 may be spaced apart in the left and right direction (X), and a pair of

purification units

22 and 24 includes a left purification unit 22 and a right purification unit 24 . may include Hereinafter, the common configuration of the left purification unit 22 and the right purification unit 24 will be described as the purification unit 2 .

The blowing unit 3 may be accommodated in the space S, as shown in FIG. 3 . The blowing unit 3 may be disposed lower than the outlet 12 . The blowing unit 3 may include a fan motor 32 mounted on the housing 1 , and a fan 34 connected to the fan motor 32 and rotated by the fan motor 32 .

The fan 34 may be composed of a centrifugal fan or an axial fan, and any fan capable of blowing air in an upward direction is applicable.

When the inlet 11 is formed in the lower part of the housing 1 and the outlet 12 is formed in the upper part of the housing 1, the air outside the air purifier passes through the inlet 11 to the space of the housing 1 ( It can be sucked into S), and the air sucked into the space S can be purified while passing through the purification unit 2 . The air purified by the purification unit 2 may be blown upward by the blowing unit 3 .

Air blown by the blowing unit 2 may flow to the upper portion of the housing 1 , and may flow upward through the outlet 12 .

The discharge guide 4 may be disposed to guide the discharge of the blown air to the discharge port 12 . The discharge guide 4 may be disposed on the upper portion of the housing 1 . The discharge guide 4 may change the direction of the air passing through the discharge port 12 to a lateral direction or a downward inclined direction. After the air that has passed through the discharge port 12 collides with the discharge guide 4 , the direction in which the discharge guide 4 guides may be switched.

The size of the discharge guide 4 may be larger than that of the discharge hole 12 . The edge 42 of the discharge guide 4 may face the periphery of the discharge port 12 in the vertical direction (Z). The edge 42 of the discharge guide 4 may face the

curved surfaces

13 and 14 formed around the discharge port 12 . The edge 42 of the discharge guide 4 may face the

curved surfaces

13 and 14 in the vertical direction.

The discharge guide 4 may cover the discharge port 12 from the top of the discharge port 12 . When the operation of the air purifier is stopped, foreign substances in the air may fall on the upper surface of the discharge guide 4 , and are blocked by the discharge guide 4 and do not flow into the discharge port 12 .

The discharge guide 4 may include a lower guide surface 41 for guiding the air sent from the discharge port 12 . The lower guide surface 41 may face the space (S). The lower guide surface 41 may be positioned on the space S and the outlet 12 , and may face the space S and the outlet 12 in the vertical direction Z. The lower guide surface 41 may face the

curved surfaces

13 and 14 formed around the outlet 12 in the vertical direction.

The discharge guide 4 may include a vane 44 having a size larger than that of the discharge port 12 . The lower guide surface 41 may be a surface facing the outlet 12 and the outlet 12 of the vanes 44 .

The discharge guide 4 may further include a connector 46 connected to the horizontal axis 54 of the tilting mechanism 5 and tilted around the horizontal axis 54 . The connector 46 may be formed to protrude from the lower surface of the vane 44 .

When the discharge guide 4 is lowered, the discharge guide 4 may be closer to the upper portion of the housing 1 , and when the discharge guide 4 is raised, the discharge guide 4 may move away from the upper portion of the housing 1 . can

A gap G through which air may pass may be formed between the upper portion of the housing 1 and the discharge guide 4 .

The gap G may be defined between the rim 42 of the discharge guide 4 and the upper portion of the housing 1 .

The size of the gap G may be determined according to the height or angle of the discharge guide 4 .

The housing 1 may be formed such that the air that has passed through the gap G after being guided by the discharge guide 4 is guided as a descending airflow. The downdraft described herein may mean that the air passing through the outlet 12 flows in the left inclined direction LI or the right inclined direction RI.

The housing 1 may include

curved surfaces

13 and 14 formed around the outlet 12 . The housing 1 may include a left curved surface 13 positioned on the left side of the outlet 12 and a right curved surface 14 positioned on the right side of the outlet 12 .

The curved surfaces 13 and 14 may be formed such that the air guided to the discharge guide 4 flows through the discharge port 12 in a Coanda effect.

The housing 1 may further include a pair of side surfaces 15 and 16 extending from the

curved surfaces

13 and 14 . The pair of side surfaces 15 and 16 may gradually move away from each other toward the lower side.

The housing 1 may be formed so that the width in the left-right direction (X) gradually increases in the lower direction.

The housing 1 may be composed of a combination of a plurality of members.

The housing 1 may include a discharge body 17 having an open bottom surface and a discharge port 12 formed thereon.

The discharge port 12 may be formed to be opened at the upper portion of the discharge body 17 in the vertical direction.

In the discharge body 17 , the discharge port 12 is opened in the vertical direction, the upper

curved portions

17C and 17D in which the

curved surfaces

13 and 14 are formed around the discharge port 12 , and the upper left lower portion of the upper curved portion 17A. It may include a left inclined portion 17E extending from the , and a right inclined portion 17F extending from the lower right of the upper curved portion 17A.

The cross-sectional shape of the upper

curved portions

17C and 17D may be an arc shape convex in the upper direction, and the cross-sectional shape of each of the upper and lower surfaces thereof may be an arc shape.

A pair of upper

curved portions

17C and 17D may be provided, and the pair of upper

curved portions

17C and 17D include a left upper curved portion 17C located on the left periphery of the discharge port 12 , and the discharge port 12 . It may include a right upper curved portion 17D located on the right side of the periphery.

The discharge port 12 may be defined as an opening opened vertically between the left upper curved part 17C and the right upper curved part 17D.

The left inclined portion 17E and the right inclined portion 17F may move downward and move away from each other.

The left inclined portion 17E may extend long in the left inclined direction LI from the lower end of the left upper full portion 17C.

The right inclined portion 17F may extend long in the right inclined direction RI from the lower end of the right upper curved portion 17D.

The discharge body 17 may include a pair of

side bodies

17A and 17B. The pair of

side bodies

17A and 17B may be configured to be left and right symmetrical. The pair of

side bodies

17A and 17B may have an upper portion coupled thereto, and the pair of

side bodies

17A and 17B may be disposed to be farther away from each other in the lower direction.

The left body 17A of the pair of

side bodies

17A and 17B may include a left upper curved portion 17C and a left inclined portion 17E, and a right side of the pair of

side bodies

17A and 17B. The body 17B may include a right upper curved portion 17D and a right inclined portion 17F.

The discharge body 17 may be mounted on the inlet guide 18 , and may be seated on the inlet guide 18 .

The housing 1 may further include an inlet guide 18 . The inlet guide 18 may be disposed under the discharge body 17 . The inlet guide 18 may guide air into the discharge body 17 .

The inlet guide 18 guides external air to be sucked into the empty space S, and may be connected to at least one of the discharge body 17 and the purification unit 2 . The inlet guide 18 may be spaced apart from the floor in the room in the vertical direction (Z) when the clean module (A) is installed.

An example of the inlet guide 18 may be composed of a suction grill or a suction panel in which a suction port is formed.

Another example of the inlet guide 18 may be configured as a suction guide for guiding air sucked toward the space S, and in this case, air is interposed between the inlet guide 18 and the discharge body 17 by the discharge body ( 17) A suction port 11 through which to be sucked inward may be formed.

The suction port 11 may be formed between the side end of the inlet guide 18 and the inner surface of the discharge body 17 .

The left end of the inlet guide 18 may be spaced apart from the left inner surface of the discharge body 17 , and the right end of the inlet guide 18 may be spaced apart from the right inner surface of the discharge body 17 .

The length L1 in the left and right direction X of the inlet guide 18 may be shorter than the distance L2 between the left inner surface of the discharge body 17 and the right inner surface of the discharge body 17 .

In this case, the suction port 11 is formed between the left suction port formed between the left end of the inlet guide 18 and the left inner surface of the discharge body 17 , and the right end of the inlet guide 18 and the right inner surface of the discharge body 17 . It may include a right inlet port.

A lighting module 8 may be disposed in the housing 1 . The lighting module 8 may be arranged to illuminate the lower part of the air purifier. The lighting module 8 may include a light source such as an incandescent lamp, a fluorescent lamp, or an LED assembly. The lighting module 8 may be disposed under the clean module A.

In one example of the air purifier, it is possible that the inlet guide 18 and the lighting module 8 are separately configured. In this case, any one of the inlet guide 18 and the lighting module 8 may be disposed around the other.

In another example of the air purifier, the lighting module 8 is disposed inside the inlet guide 18 so that the assembly of the inlet guide 18 and the lighting module 8 may constitute a lighting device. In this case, the inlet guide 18 may include a diffusion plate through which the light of the illumination module 8 is diffused. And, in this case, the lighting module may be disposed above the diffusion plate.

On the other hand, at least one of the discharge body 17 and the inlet guide 18 is connected to a hanger unit (U, see FIGS. 5 to 8) installed on the ceiling (C, see FIGS. 5 to 8), a hanger connector 19 ( 20) may be included.

The

hanger connectors

19 and 20 may be integrally formed with the inlet guide 18 and may extend upwardly from the inlet guide 18 . In the air purifier, the

hanger connectors

19 and 20 are not limited to being integrally formed with the inlet guide 18 , and the

hanger connectors

19 and 20 may be integrally formed with the discharge body 17 . In the air purifier, after the

hanger connectors

19 and 20 are manufactured separately from the discharge body 17 and the inlet guide 18 , it is also possible to be coupled to at least one of the discharge body 17 and the inlet guide 18 .

A pair of

hanger connectors

19 and 20 may be provided, and the pair of

connectors

19 and 20 may include a front connector 19 and a rear connector 20 .

The front connector 19 may extend upwardly from the front end of the inlet guide 18 and may be disposed between the left body 17A and the right body 17B.

The rear connector 20 may extend upwardly from the rear end of the inlet guide 18 and may be disposed between the left body 17A and the right body 17B.

Each of the front connector 19 and the rear connector 20 may have a shape in which the length in the left and right direction Z increases toward the lower side.

Each of the upper end 19A of the front connector 19 and the upper end 20A of the rear connector 20 may have a shape corresponding to the lower surfaces of the upper

curved portions

17C and 17D, and may have an arc shape convex toward the upper side.

Each of the upper end 19A of the front connector 19 and the upper end 20A of the rear connector 20 may be coupled to the discharge body 17, in particular, the upper

curved portions

17C and 17D, and the discharge body 17 is It can be mounted on the

hanger connectors

19 and 20 and can be supported on the

hanger connectors

19 and 20 .

The suction port 11 formed in the housing 1 may be formed between the discharge body 17 and the

hanger connectors

19 and 20 . In this case, the suction port 11 may be opened between the discharge body 17 and the

hanger connectors

19 and 20 in the front-rear direction.

A distance L3 in the left and right direction between the left inclined portion 17E and the right inclined portion 17F may be longer than the left and right X length L4 of the

hanger connectors

19 and 20 .

The tilting mechanism 5 may tilt the discharge guide 4 . And, the elevating mechanism 6 can elevate the discharge guide 4 .

Any one of the tilting mechanism 5 and the elevating mechanism 6 may be connected to the discharge guide 4 , and the other of the tilting mechanism 5 and the elevating mechanism 6 may be connected to the tilting mechanism 5 and the elevating mechanism 6 . ) can be connected to any one of the

When the tilting mechanism 5 is connected to the discharge guide 4 to tilt the discharge guide 4 , the lifting mechanism 6 is connected to the tilting mechanism 5 to provide the tilting mechanism 5 and the discharge guide 4 . can elevate.

The tilting mechanism 5 may include a tilting motor 52 having a horizontal axis 54 connected to the connector 46 .

The tilting mechanism 5 may tilt the discharge guide 4 so that the left end of the discharge guide 4 moves away from the left curved surface 13 and the right end of the discharge guide 4 approaches the right curved surface 14 . .

In this case, the gap G between the left end of the discharge guide 4 and the left curved surface 13 may be increased, and the gap G between the right end of the discharge guide 4 and the right curved surface 14 may be decreased or There may not be, and the air that has passed through the discharge port 12 may be guided to be discharged in the left direction L by the discharge guide 4 . The air purifier may be in a left concentrated discharge mode in which the purified air is mainly discharged in the left direction (L).

In this case, the gap G between the right end of the discharge guide 4 and the right curved surface 13 may be reduced or absent, and the gap G between the right end of the discharge guide 4 and the right curved surface 14 increases. The air passing through the discharge port 12 may be guided to be discharged in the right direction (R) by the discharge guide 4 . The air purifier may be in a right centralized discharge mode in which the purified air is mainly discharged in the right direction (R).

When the elevating mechanism 6 is connected to the discharge guide 4 to elevate the discharge guide 4 , the tilting mechanism 5 is mounted on the housing 1 and connected to the elevating mechanism 6 to elevate the elevating mechanism 6 . and the discharge guide 4 may be tilted.

The lifting mechanism 6 includes a carrier 62 on which a tilting mechanism 5 is mounted, a rack 64 formed on the carrier 62 , a pinion 66 meshed with the rack 64 , and a housing 1 . It is installed and may include a lifting motor 68 for rotating the pinion (66).

The carrier 62 may be accommodated in a motor accommodating part 63 in which the tilting motor 52 constituting the tilting mechanism 5 is accommodated, and when the carrier 62 is lifted, the tilting motor 52 is connected to the carrier 62 . can be lifted with

The carrier 62 may surround the outer peripheral surface of the tilting motor 52 , and may be a tilting motor housing that protects the tilting motor 52 .

The tilting motor 52 may have a horizontal axis 54 disposed in the front-rear direction (Y).

The rack 64 may be formed to protrude from one side of the carrier 62 . The rack 64 may extend to protrude downward from the carrier 62, and may be formed to be elongated in the vertical direction (Z).

The pinion 66 may be connected to the rotation shaft 69 of the lifting motor 68 , may be meshed with the rack 64 , and may raise or lower the rack 64 when the rotation shaft 69 rotates.

The lifting motor 68 may be fixedly mounted on the housing 1 , and the rotating shaft 69 of the lifting motor 68 may be parallel to the horizontal axis 54 of the tilting motor 52 .

The air purifier may further include an elevation guide 70 capable of guiding the elevation of the tilting mechanism 5 . The elevating guide 70 may be disposed inside the housing 1, and is formed to be elongated in the vertical direction so that the tilting mechanism 5 is linearly moved in the vertical direction (Z). can guide you The lifting guide 70 may be connected to the housing 1 or the purification unit 2 .

The elevating guide 70 may be elongated in the vertical direction (Z) around the rack 64 to guide the elevating of the rack 64 .

When the elevating mechanism 6 raises the discharge guide 4 , the air purifier may be in a pop-up mode in which the discharge guide 4 is raised. The gap G between the discharge guide 4 and the

upper surfaces

13 and 14 may be increased, and the air passing through the discharge port 12 may be discharged widely through the large gap. The pop-up mode may be a normal mode or a diffusion mode in which the purified air is expanded towards a large area of the room.

When the elevating mechanism 6 lowers the discharge guide 4 , the air purifier may be in a descending airflow mode in which the discharge guide 4 is lowered.

In the descending airflow mode, the gap G between the discharge guide 4 and the

upper surfaces

13 and 14 can be reduced, and the air passing through the discharge port 12 passes through the small gap and the curved surfaces 13 and 14 ), and the air guided by the discharge guide 4 flows along the

curved surfaces

13 and 14, the Cowanda effect can be increased, and the air flows in the left inclined direction (LI) and the right inclined direction ( It can form a downdraft flowing to L2).

5 is a front view when the air purifier shown in FIG. 1 discharges airflow, FIG. 6 is a front view when the discharge guide shown in FIG. 1 is lowered, and FIG. 7 is a side view of the discharge guide shown in FIG. is a front view when tilted to , FIG. 8 is a front view when the discharge guide shown in FIG. 1 is tilted to the other side, and FIG. 9 is a control block diagram of an air purifier according to an embodiment of the present invention.

The housing 1 may be spaced apart from the ceiling (C) and the floor (B) of the room under the ceiling (C).

The air purifier may further include a hanger unit (U) installed on the ceiling (C), and the hanger unit (U) includes a support body (W, hereinafter, referred to as a support body) such as a wire or a support rod extending downward. may include The hanger unit U may include a mounter mounted on the ceiling C, and the support body W may extend downwardly from the mounter.

The housing 1 is connected to the support body W and may be installed to be suspended from the hanger unit U installed on the ceiling C.

In the hanger unit (U), a wire for supplying power to the clean module (A) may extend downward, and the wire may be connected to the clean module (A) to supply power to the clean module (A).

The housing 1 may be connected to a lower portion of the support body W, and an upper end of the housing 1 may be spaced apart from the ceiling C. When the housing 1 is connected to the lower part of the support body W, it may be disposed to be spaced apart from the ceiling C by a predetermined distance in the vertical direction Z. The separation distance between the housing 1 and the hanger unit U may be longer than the maximum elevating width of the discharge guide 4 , and the discharge guide 4 does not interfere with the hanger unit U even when it is raised to the maximum height.

The air purifier may further include a sensor for sensing the degree of pollution in the room in which the air purifier is disposed.

The air purifier may include at least one sensor spaced apart from the clean module (A). The sensor may be provided outside the housing 1 to be spaced apart from the housing 1 .

It is preferable that the sensor is provided at a position where the air purified in the cleaning module A can be reached. The sensor may be disposed at a location spaced apart from the clean module A by a predetermined distance or more.

The sensor may be communicatively connected to the controller 9 . The air purifier may include a plurality of

sensors

101, 102, 103, 104, and 105, and the plurality of

sensors

101, 102, 103, 104, 105 is a cleaning module (A). It may be arranged to be spaced apart from each other in the installed room (R).

In this case, each of the plurality of

sensors

101 , 102 , 103 , 104 , 105 may be communicatively connected to the controller 9 .

The

sensors

101, 102, 103, 104 and 105 include a sensing element 112 for sensing foreign substances such as dust, a sensor PCB 114 for processing a sensing value of the sensing element 112, and a sensor. It may include a transmitter 116 connected to the PCB 114 and transmitting a signal generated by the sensor PCB 114 to the outside.

The sensing element 112 may include a dust sensor for sensing the concentration of foreign substances in the air.

An example of the dust sensor may be an optical sensor, and the dust sensor includes a housing having an opening through which external air can be introduced, a light source such as an LED or laser capable of emitting light to the air introduced into the housing, and a fine It may include a light receiving element such as a photodiode or a phototransistor for detecting the amount of light scattered by dust, such as dust.

The dust sensor may output the concentration of the dust detected by the light receiving element (ie, the concentration of foreign substances) as the size of the concentration sensing value (eg, voltage).

The sensor PCB 114 may process the sensing value output from the sensing device 114 , and transmit a corresponding signal to the transmitting device 116 .

The room R in which the clean module A is disposed may be divided into a left area and a right area based on a vertical extension line VE extending in the vertical direction from the housing 1 .

The room R in which the clean module A is disposed may be divided into an upper area and a lower area based on a horizontal extension line HE extending from the upper end or lower end of the housing 1 in the left and right direction.

The room in which the clean module (A) is disposed can be divided into two areas, an upper area and a lower area, based on a horizontal extension line (HE) extending in the left and right direction from the upper end or lower end of the housing (1), and the lower area This again may be divided into a lower left region, a lower central region, and a lower right region.

The air purifier may include two sensors, one of the two sensors being a left sensor located in the left area, and the other of the two sensors being a right sensor located in the right area.

The air purifier may include two sensors, one of the two sensors being an upper sensor positioned in the upper region, and the other of the two sensors being a lower sensor positioned in the lower region.

The air purifier may include at least four sensors, and at least one sensor may be located in each of the upper left area, the upper right area, the lower left area, and the lower right area.

The air purifier includes at least five sensors, each in an upper left area (UL), an upper right area (UR), a lower left area (LL), and a lower center area (LC) and a lower right area (LR). It is also possible for at least one sensor to be located.

For example, the plurality of

sensors

101 , 102 , 103 , 104 , 105 includes an upper left sensor 101 disposed in the upper left area UL and an upper portion disposed in the upper right area UR. The right sensor 102 , the lower left sensor 103 disposed in the lower left area LL , the lower center sensor 104 disposed in the lower center area LC , and the lower portion disposed in the lower right area LR A right sensor 105 may be included.

The air purifier may further include a controller 9 . The controller 9 may control the blowing unit 3 , and when controlling the blowing unit 3 , may control the fan motor 32 .

The controller 9 may control the tilting mechanism 5 and the elevating mechanism 6 , and may control the tilting mechanism 5 and the elevating mechanism 6 in a plurality of modes. The controller 9 may control the tilting motor 52 of the tilting mechanism 5 when controlling the tilting mechanism 5 . The controller 9 may control the elevating motor 68 of the elevating mechanism 6 when controlling the elevating mechanism 6 .

The controller 9 can control the tilting mechanism 5 and the elevating mechanism 6 so that the direction in which the discharge guide 4 guides the air faces the area where the sensor is located, when the pollution level sensed by the sensor is within a set range. .

The setting range may be a range of a degree of contamination in which it can be determined that the periphery of the sensor is contamination. The set range may include a case in which the pollution degree is equal to or greater than the set pollution degree. When the set range is greater than or equal to the set pollution degree, the clean range may be a range less than the set pollution degree.

The controller 9 includes a receiving element 92 for receiving a signal transmitted from the transmitting element, and a tilting mechanism 5 and a lifting mechanism 6 according to the signal received by the receiving element 92 and connected to the receiving element 92 . ) may include a purifier PCB 94 to control.

The receiving device 92 may be connected to the transmitting device 116 through wired/wireless communication, for example, Global System for Mobile communication (GSM), Code Division Multi Access (CDMA), Long Term Evolution (LTE), 5G, WLAN. (Wireless LAN), Wi-Fi (Wireless-Fidelity), Bluetooth (Bluetooth), RFID (Radio Frequency Identification), Infrared Data Association (IrDA), ZigBee, NFC (Near Field Communication), etc. can be connected

The plurality of modes may include a pop-up mode and a downdraft mode.

The pop-up mode may be a mode in which the discharge guide 4 is raised to the first height H1 as shown in FIG. 5 .

For example, when the difference between the pollution level sensed by the sensor located on the left side of the room and the pollution level sensed by the sensor located on the right side of the room is less than a set value, the controller 9 controls the tilting mechanism 5 in the horizontal mode. and the lifting mechanism 6 can be controlled in the ascending mode.

In this case, the discharge guide 4 is raised to a first height H1, the height of the left end and the right end of the discharge guide 4 may be the same, and the air passing through the discharge port 12 is shown in FIG. As shown in , discharge may be guided while being dispersed in both directions of the left and right sides of the clean module A, and the left and right areas of the room R may be uniformly cleaned.

As shown in FIG. 6 , the descending airflow mode may be a mode in which the discharge guide 4 descends to a second height H2 lower than the first height H1 .

The second height H2 may be a height at which the air guided to the discharge guide 4 forms a Coanda airflow along the

curved surfaces

13 and 14 formed around the discharge port 12 . In this case, the second height H2 may be a height at which the discharge guide 4 does not contact the

curved surfaces

13 and 14 .

For example, in the controller 9, the difference between the pollution degree sensed by the sensor located in the lower part of the room is greater than or equal to the set value and the difference in the pollution degree sensed by the sensor positioned in the upper part of the room is greater than a set value, and is sensed by the sensor located in the lower part of the room. If the pollution degree is within the set range, the tilting mechanism 5 can be controlled in the horizontal mode, and the lifting mechanism 6 can be controlled in the descending mode.

In this case, the discharge guide 4 is lowered to the second height H2, the height of the left end and the right end of the discharge guide 4 may be the same, and the air passing through the discharge port 12 is mainly curved. According to (13) and (14), it can flow in the Coanda effect, and as shown in FIG. 6 , discharge can be guided while forming a downdraft along the left and right sides of the housing 1 . The lower part of the room R, in particular, the lower periphery of the housing 1 may be intensively cleaned by the downdraft flowing along the left and right sides of the housing 1 .

7, the distance L5 between the left end of the discharge guide 4 and the left curved surface 13 is the distance between the right end of the discharge guide 4 and the right curved surface 14 ( L6) may be longer mode.

For example, the controller 9 may have a difference between the pollution level sensed by the sensor located on the left side of the room and the pollution level sensed by the sensor located on the right side of the room exceeds a set value, and the controller 9 is sensed by the sensor located on the left side of the room. If the pollution degree is within the set range, the tilting mechanism 5 can be controlled in the right tilting mode, and the lifting mechanism 6 can be controlled in the ascending mode.

In this case, the discharge guide 4 may be tilted while rotating in the right direction, the gap G between the left end of the discharge guide 4 and the left curved surface 13 increases, and the right end of the discharge guide 4 and The gap G between the right curved surfaces 14 can be reduced. As shown in FIG. 7 , the air passing through the outlet 12 may be mainly discharged and guided in the left direction L of the cleaning module A, and the left area of the room R may be intensively cleaned. .

In the right concentrated discharge mode, as shown in FIG. 8 , the distance L6 between the right end of the discharge guide 4 and the right curved surface 14 is the distance between the left end of the discharge guide 4 and the left curved surface 13 . It may be a longer mode than (L5).

For example, the controller 9 has a difference between the pollution level sensed by the sensor located on the left side of the room and the pollution level sensed by the sensor located on the right side of the room exceeds a set value, and is sensed by the sensor located on the right side of the room. If the pollution level is within the set range, the tilting mechanism 5 can be controlled in the left tilting mode, and the lifting mechanism 6 can be controlled in the ascending mode.

In this case, the discharge guide 4 may be tilted while rotating in the left direction, the gap G between the right end of the discharge guide 4 and the right curved surface 14 increases, and the left end of the discharge guide 4 and The gap G between the left curved surfaces 13 may be reduced. As shown in FIG. 8 , the air passing through the discharge port 12 may be mainly discharged and guided in the right direction R of the cleaning module A, and the left area of the room R may be intensively cleaned. .

The above description is merely illustrative of the technical spirit of the present invention, and various modifications and variations will be possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains.

Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments.

The protection scope of the present invention should be construed by the following claims, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

Claims

A housing having a suction port, a space formed therein, and a discharge port formed thereon;

a purification unit and a blowing unit accommodated in the space;

a discharge guide disposed on the upper portion of the housing and for discharging and guiding the air blown through the discharge port;

a tilting mechanism for tilting the discharge guide; and

and an elevating mechanism for elevating the discharge guide.
The method of claim 1,

The discharge port is opened in the vertical direction on the upper portion of the housing,

The discharge guide is larger in size than the discharge port,

The edge of the discharge guide is directed toward the periphery of the discharge port in the vertical direction.
3. The method of claim 2,

The discharge guide includes a lower guide surface facing the space and guiding the air sent from the discharge port.
3. The method of claim 2,

The housing includes a curved surface formed around the outlet.
5. The method of claim 4,

The housing further includes a pair of side surfaces extending from the curved surface,

The pair of side surfaces of the air purifier gradually move away from the lower side.
5. The method of claim 4,

The housing has an air purifier whose width in the left and right directions gradually increases in the downward direction.
The method of claim 1,

the housing is

a discharge body having an open bottom surface and having the discharge port formed thereon;

and an inlet guide disposed under the discharge body;

and at least one of the discharge body and the inlet guide includes a hanger connector connected to a support body extending from a hanger unit installed on the ceiling.
8. The method of claim 7,

The discharge body includes an upper curved part in which the discharge port is opened in a vertical direction, and a curved surface is formed around the discharge port;

And a left inclined portion extending from the lower left of the upper curved portion,

Including a right inclined portion extending from the lower right of the upper curved portion,

The left inclined portion and the right inclined portion of the air purifier move away from each other in the downward direction.
The method of claim 1,

The discharge guide is

A vane having a size larger than the outlet,

and a connector protruding from a lower surface of the vane and connected to a horizontal axis of the tilting mechanism to be tilted around the horizontal axis.
The method of claim 1,

The tilting mechanism is connected to the discharge guide,

The lifting mechanism is an air purifier connected to the tilting mechanism.
The method of claim 1,

The lifting mechanism includes a carrier on which the tilting mechanism is mounted,

a rack formed on the carrier;

a pinion engaged with the rack;

Installed in the housing and comprising a lifting motor for rotating the pinion

air cleaner.
The method of claim 1,

The air purifier further comprising an elevation guide disposed inside the housing and guiding the elevation of the tilting mechanism.
The method of claim 1,

The air purifier further comprising a controller for controlling the tilting mechanism and the lifting mechanism in a plurality of modes.
14. The method of claim 13,

The plurality of modes

a pop-up mode in which the discharge guide is raised to a first height;

a descending airflow mode for lowering the discharge guide to a second height lower than the first height;

The second height is a height at which the air guided to the discharge guide forms a Coanda airflow along a curved surface formed around the discharge port.
15. The method of claim 14,

The housing includes a left curved surface on the left side of the discharge port and a right curved surface on the right side of the discharge port,

The plurality of modes includes a left concentrated discharge mode in which the distance between the left end of the discharge guide and the left curved surface is longer than the distance between the right end and the right curved surface of the discharge guide;

and a right concentrated discharge mode in which the distance between the right end of the discharge guide and the right curved surface is longer than the distance between the left end and the left curved surface of the discharge guide.
14. The method of claim 13,

Further comprising a sensor for sensing the degree of pollution in the room,

The controller controls the tilting mechanism and the lifting mechanism so that the discharge guide guides the air toward the area where the sensor is located when the pollution level sensed by the sensor is within a set range.
17. The method of claim 16,

The sensor is provided outside the housing and spaced apart from the housing,

A plurality of the sensors are provided to be spaced apart from each other, and each of the plurality of sensors is communicatively connected to the controller.
17. The method of claim 16,

the sensor is

A sensing element for sensing foreign substances, and

a sensor PCB for processing the sensing value of the sensing element;

and a transmitter connected to the PCB and transmitting a signal generated by the sensor PCB to the outside;

the controller is

a receiving element for receiving the signal transmitted from the transmitting element;

and a purifier PCB connected to the receiving element and controlling the tilting mechanism and the lifting mechanism according to a signal received by the receiving element.
a discharge body having a discharge port formed at an upper portion and a curved surface formed around the discharge port;

a discharge guide that is larger than the discharge port, has a lower guide surface facing the discharge port and a curved surface in a vertical direction, and has a rim facing the curved surface in a vertical direction;

a lifting mechanism for raising the discharge guide to a first height or lowering the discharge guide to a second height lower than the first height;

The second height is a height at which the lower guide surface is not in contact with the curved surface.
20. The method of claim 19,

The discharge body is

Further comprising a pair of side surfaces extending from the curved surface,

The pair of side surfaces of the air purifier gradually move away from the lower side.
20. The method of claim 19,

and an inlet guide for guiding air into the discharge body;

The inlet guide has a left end spaced apart from a left inner surface of the discharge body, and a right end spaced apart from a right inner surface of the discharge body.