KR102358334B1 - Air Cleaner - Google Patents

Abstract

The present invention relates to an air purifier, and an air purifier according to an embodiment of the present invention comprises: a lower purifier having an annular air outlet opening toward the upper side; and a wind direction control device spaced upward from the lower cleaning device to form a radial discharge port through which the air discharged from the air discharge port flows outward in a radial direction, wherein the wind direction control device is spaced upward from the lower cleaning device an upper assembly disposed to form the radial discharge port; a lifting assembly in which a partial arc of the outer perimeter wall is opened, and restricting a wind direction of the air discharged to the radial outlet; a first gear for moving the elevating assembly in a vertical direction; Including a second gear for moving the elevating assembly in the circumferential direction, the direction of air discharged from the air purifier can be changed according to the elevating and lowering and rotation of the elevating assembly, so that the flow direction can be freely changed according to the user's preference It has the advantage of being adjustable.

Description

Air Cleaner {Air Cleaner}

The present invention relates to an air purifier, and more particularly, to a wind direction control device for controlling a flow direction of air discharged from a lower cleaning device.

An air purifier is a device that performs the function of supplying clean air to a room after inhaling polluted air from the room, going through a series of cleaning actions.

The air discharged from the air purifier induces user comfort, and therefore, the demand for an air purifier capable of freely controlling the direction of the air discharged from the air purifier is increasing.

In order to satisfy the above demand, Korean Patent No. 10-1916887 discloses a method of controlling the flow direction of air discharged from the air purifier by simultaneously rotating an air guide having an annular air outlet and a rotating guide for rotating the air guide. Although the method is disclosed, there is a problem that the rotation radius range of the air guide is narrow, and as the air guide and the rotation guide are rotated at the same time, a considerable high output of the motor is required.

In addition, in Korean Patent Laid-Open Patent No. 10-2018-0065358, in order to solve the durability problems of the parts caused by the rotation of the air guide and the rotation guide, an elastic member is disposed in an area where a load is generated by rotation to improve durability. Although the method for improving the technology has been disclosed, there is a problem that durability cannot be guaranteed only with an elastic member in order to solve the problem of a narrow rotation radius range.

Korean Patent Registration 10-1916887 Korean Patent Publication No. 10-2018-0065358

The problem to be solved by the present invention is to control the flow direction of air discharged through an air purifier.

Another object of the present invention is to intensively discharge air from the air purifier only to a local area.

Another object of the present invention is to increase the flow rate of the discharged air when discharging air from the air purifier to a local area so that clean air can reach a distant location.

Another object of the present invention is to allow the air purifier to have a degree of freedom to discharge air to a local area or to a full area 360 degrees.

Another object of the present invention is to enable vertical and rotational movements of the wind direction control device while minimizing the number of power sources.

The problems of the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, an air purifier according to an embodiment of the present invention includes: a lower purifier having an annular air outlet opening upward and having a first blowing fan disposed therein; and a wind direction control device disposed upwardly from the lower cleaning device to form a radial outlet through which the air discharged from the air outlet is discharged radially outward, wherein the air discharged upward from the air outlet in a radial direction guide the flow direction to flow.

The wind direction control device may include an upper assembly spaced upward from the lower cleaning device to form the radial discharge port; a lifting assembly in which some arcs are opened to limit a wind direction of the air discharged to the radial outlet; a first gear disposed on the upper assembly; Including the second gear disposed on the lifting assembly, the first gear and the second gear can be driven by the lifting assembly to have the freedom of movement in the vertical direction and the freedom of movement in the circumferential direction.

The elevating assembly includes: a flow guider in which an internal gear meshing with the second gear is formed on an inner circumferential surface, and a partial arc of the outer circumferential wall is opened; Including a rack having a gear tooth meshing with the first gear formed in the vertical direction, it can move in the vertical direction by the rotation of the first gear, and in the circumferential direction by the rotation of the second gear can move to

The wind direction control device may further include a cylindrical neck connecting the lower cleaning device and the wind direction control device to provide a guideline for moving the lifting assembly.

An annular seating rim may be formed on the outside of the air outlet, and a lower portion of the lifting assembly may be in contact with the seating rim, thereby limiting the downward movement of the lifting assembly and supporting the lifting assembly.

The upper assembly may include a cover body providing a space in which the elevating assembly is accommodated; Including a fixed frame on which the first motor and the first gear are seated, it is possible to provide a driving force for vertical movement while accommodating the elevating assembly.

The elevating assembly, a portion of the periphery of the lifting assembly may overlap with the fixed frame, it is possible to prevent removal by up-and-down and rotation.

The fixed frame includes: an outer wall of the fixed frame having an arc-shaped cross-section; a fixed frame hollow body disposed inside the fixed frame outer wall; By including a fixed frame base connecting the fixed frame outer wall and the fixed frame hollow body, it is possible to form a space between the fixed frame outer wall and the fixed frame hollow body.

The first motor and the first gear may be disposed between the fixed frame outer wall and the fixed frame hollow body.

The first motor may be seated on the upper surface of the fixed frame base, and the rack may be inserted into a rack seating groove formed in the fixed frame hollow body.

A first motor housing in which the first motor is accommodated may be formed between the fixed frame outer wall and the fixed frame hollow body.

The elevating assembly may include a support plate for shielding a portion of the air outlet when descending, thereby limiting the flow path discharged to the air outlet.

The rack may extend upward from the upper surface of the support plate, and one surface may form a continuous surface with the inner circumferential surface of the support plate.

The extended height of the rack may be higher than the height of the flow guider.

The lifting assembly may further include a stopping plate disposed on the upper side of the support plate.

A second motor housing in which the second motor is accommodated may be formed on an upper surface of the stopping plate.

The flow guider may have a flow guider protrusion that protrudes inward to connect a stopper, and the stopper is accommodated in the stopper and a stopping groove for limiting the rotation radius of the flow guider is formed, the flow guider can move in the circumferential direction only by the angle at which the stopping groove is formed.

The open arc of the flow guider may have a first central angle, the air outlet not shielded by the support plate may have a second central angle, and the stopping groove may have a third central angle.

The size of the first central angle may be smaller than the size of the second central angle, and the value obtained by adding the size of the third central angle to the size of the first central angle is smaller than the size of the second central angle. It is possible to smoothly discharge the air to the opened arc.

An upper cleaning device may be disposed on an upper side of the wind direction control device, the upper cleaning device comprising: a control display for displaying driving information of the lifting assembly; It may include a control unit for controlling the driving of the lifting assembly, the user can select whether to drive the lifting assembly.

The details of other embodiments are included in the detailed description and drawings.

According to the air purifier of the present invention, there are one or more of the following effects.

First, the direction of the air discharged from the air purifier can be changed according to the rotation of the flow guider, so the flow direction can be freely adjusted according to the user's preference.

Second, there is an advantage in that the user's comfort can be maximized by intensively discharging air to a local area by adjusting the central angle of the open arc of the flow guider.

Third, the support plate is designed to shield a part of the air outlet according to the descent of the elevating assembly, so that the flow rate of the air discharged from the air purifier increases, so that clean air can be supplied to a more distant location.

Fourth, the freedom of movement is given so that the lifting assembly can ascend or descend, and there is also an advantage that air can be selectively discharged in a 360-degree direction or a local direction through the air purifier.

Fifth, it is possible to minimize the power source by realizing vertical and rotational movements using two motors disposed in the wind direction control device, and by utilizing the existing space, there is also an advantage that spatial efficiency is increased.

Effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view of an air purifier according to an embodiment of the present invention.
2 is a perspective view of an air purifier with a case removed according to an embodiment of the present invention.
3 is a cross-sectional view taken along the line AA′ of the structure shown in FIG. 2 .
4 is an exploded perspective view of a lower cleaning device according to an embodiment of the present invention.
5 is a front view of a lower cleaning device and a wind direction control device according to an embodiment of the present invention.
6 is a bottom perspective view of a structure including a wind direction control device according to an embodiment of the present invention.
Figure 7 (a) is a perspective view of a structure including a wind direction control device when the lifting assembly according to an embodiment of the present invention is located on the top.
Figure 7 (b) is a perspective view of a structure including a wind direction control device when the lifting assembly according to the embodiment of the present invention is located in the lower portion.
7 (c) is a perspective view of a structure including a wind direction control device when the lifting assembly according to an embodiment of the present invention is rotated by being positioned at the lower portion.
8 is a top perspective view of a lower discharge guider according to an embodiment of the present invention.
9 is an exploded perspective view of the structure shown in FIG.
10 is an exploded perspective view of the structure shown in FIG.
11 is a perspective view when the cover body is separated from the structure shown in FIG.
12 is a view showing an oblique view from above of the structure shown in FIG. 11 .
13 is an exploded perspective view of the structure shown in FIG. 11 .
14 is a top perspective view of the structure shown in FIG. 11 .
15 is a top perspective view when the fixing frame is removed from the structure shown in FIG. 14 .
16 is a cross-sectional view of the line PP' shown in FIG. 7(a).
17(a) is a cross-sectional view of the QQ' line shown in FIG. 7(a).
FIG. 17(b) is a cross-sectional view of the line RR' shown in FIG. 7(b).

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

Hereinafter, the present invention will be described with reference to the drawings for explaining an air purifier according to embodiments of the present invention.

Referring to FIG. 1 , the overall appearance of the air purifier according to the embodiment of the present invention can be confirmed.

The air purifier 10 according to an embodiment of the present invention includes a lower purifier 100 disposed at the lower portion to generate air flow, and an upper purifier 100 disposed above the lower purifier 100 to generate air flow. (200), and may include a wind direction conversion device 300 for changing the direction of the flow discharged from the upper cleaning device (200).

The lower cleaning device 100 may have an exterior formed by the first case 101 , and the first case 101 may have a cylindrical overall shape. In addition, the upper cleaning device 200 may have an outer appearance formed by the second case 201 , and the second case 201 may have a cylindrical overall shape.

The first case 101 and the second case 201 may have a diameter of an upper surface smaller than a diameter of a lower surface, and thus may have a conical shape with a cut end.

The first case 101 may include a first separation unit 101a to which two parts constituting the first case 101 are coupled or separated, and the second case 201 includes the second case 201 . ) may include a second separation unit 201a in which the two parts constituting it are coupled or separated. In addition, a hinge portion (not shown) for relatively rotating the two parts may be disposed on opposite sides of the separating portions 101a and 201a.

When at least one of the two parts rotates, the cases 101 and 201 may be opened and separated from the air purifier 10 body. Accordingly, by opening the cases 101 and 201, internal parts of the cleaning devices 100 and 200 can be replaced or repaired.

A first suction unit 102 having a plurality of through-holes through which external air is sucked is disposed on the outer circumferential surface of the first case 101 , and a plurality of external air is sucked on the outer circumferential surface of the second case 201 . A second suction part 202 having a through hole formed therein is disposed. Accordingly, outside air may be introduced into the air purifier 10 in a 360 degree direction.

A base 20 in contact with the ground may be disposed on a lower side of the lower cleaning device 100 , and the base 20 may be disposed to be spaced downward from the lower cleaning device 100 . In the space spaced apart between the base 20 and the lower cleaning device 100 , a third suction unit 103 through which external air flows into the lower cleaning device 100 may be formed (see FIG. 2 ).

The air introduced into the lower cleaning device 100 may be discharged to the outside through a plurality of air outlets 105 formed on the upper surface of the lower cleaning device 100 after a series of cleaning actions. At this time, the plurality of air outlets 105 are arranged to have a grill shape along the circumference of the upper surface of the lower cleaning device 100 , and are opened toward the upper side.

The air introduced into the upper purifier 200 may be discharged to the outside through a plurality of upper air outlets 305 formed on the upper surface of the upper purifier 200 after a series of purifying actions. At this time, the plurality of upper air outlets 305 may be formed to have a grill shape along the circumference of the upper surface of the wind direction conversion device 300 .

A control display 600 displaying operation information of the air purifier 10 may be provided on the upper portion of the wind direction conversion device 300 . The control display 600 may move integrally with the wind direction changing device 300 according to the movement of the wind direction changing device 300 .

A wind direction control device 400 for restricting the upward flow of air discharged through the air outlet 105 by being spaced apart from the air outlet 105 between the lower cleaning device 100 and the upper cleaning device 200 . is placed At this time, the meaning of 'limiting the upward flow' means that the air discharged to the outside through the air outlet 105 through the cleaning action in the lower cleaning device 100 does not flow toward the user or the external space, It may be interpreted as a meaning of preventing re-introduction into the upper cleaning device 200 . A detailed description of the wind direction control device 400 will be described later.

Referring to FIG. 2 , the internal structure of the air purifier 10 according to the embodiment of the present invention, in which the cases 101 and 201 are removed, can be seen.

As described with reference to FIG. 1, a base 20 in contact with the ground may be disposed at the lower portion of the air purifier 10, and the base 20 is vertically spaced apart from the lower purifier 100, and the third suction A portion 103 may be formed. The air introduced into the third suction unit 103 may flow upwardly and flow into the lower suction grill 110 disposed under the lower cleaning device 100 in the circumferential direction of the lower suction grill 110 . It may flow upward through the formed lower suction grill suction part 112 .

The first filter member 120 may be disposed inside the lower cleaning device 100 to correspond to the first suction unit 102 (see FIG. 1), and the first filter member 120 has a cylindrical shape. Air introduced into the first suction unit 102 may be introduced in a 360 degree direction.

The first filter member 120 is stably fixed/ can be supported

A sensor device 137 including a dust sensor for measuring an amount of dust contained in the introduced air and a gas sensor for measuring an amount of gas may be disposed above the first filter member 120 .

A first fan housing 150 in which a first blowing fan 160 (refer to FIG. 4 ) to be described later is accommodated may be disposed above the sensor device 137 , and in more detail, the first fan housing 150 is the first fan housing 150 . 1 It may be disposed on the outlet side of the filter member (120).

A first lower air guider 170 for guiding the flow of air blown by the first blowing fan 160 (refer to FIG. 4 ) may be disposed above the first fan housing 150 .

The second lower portion is coupled to the upper side of the first lower air guider 170 to the upper side of the first lower air guider 170 and guides the air passing through the first lower air guider 170 to the lower discharge guider 190. An air guider 180 may be disposed.

On the upper side of the second lower air guider 180, a lower discharge guider 190 providing a flow path through which the air passing through the second lower air guider 180 is discharged to the outside of the lower cleaning device 100 may be disposed. . At this time, the air outlet 105 opened upward on the upper surface of the lower cleaning device 100 may be formed along the circumference of the lower discharge guider 190 , and accordingly, the lower cleaning device 100 as described above. ) may be understood as the same concept as the upper surface of the lower discharge guider 190 . In addition, as the plurality of air outlets 105 are formed to be spaced apart from each other in the circumferential direction on the upper surface of the lower discharge guider 190 , the plurality of air outlets 105 on the upper surface of the lower discharge guider 190 is provided. By this, the shape of the annular discharge grill can be formed.

A wind direction control device 400 for separating the lower cleaning device 100 and the upper cleaning device 200 is disposed on the upper side of the lower discharge guider 190, and the wind direction control device 400 includes the lower discharge guider 190 and the upper and lower sides. may be spaced apart. The wind direction control device 400 restricts the upward flow of the air discharged from the lower discharge guider 190 , and a detailed driving principle thereof will be described later.

The upper cleaning device 200 is spatially separated from the lower cleaning device 100 by the wind direction control device 400 , and may be structurally and functionally similar to the lower cleaning device 100 .

At this time, to be structurally and functionally similar to the lower cleaning device 100 means that each of the components constituting the upper cleaning device 200 may correspond to the components constituting the lower cleaning device 100 and functionally It may mean performing the same function.

In more detail, the second filter member 220 of the upper cleaning device 200 includes the first filter member 120 , the second filter support cover 236 includes the first filter support cover 136 , and the second fan housing Reference numeral 250 denotes a first fan housing 150, a first upper air guider 270, a first lower air guider 170, a second upper air guider 280, a second lower air guider 180, and Each may correspond, and functionally, the same function as the function performed by each component in the lower cleaning device 100 may be performed. Accordingly, since the description of each configuration of the upper cleaning device 200 is the same as the description of each configuration of the lower cleaning device 100, a detailed description thereof will be omitted.

3 is a cross-sectional view of the air purifier 10 according to the embodiment of the present invention taken along the line A-A' shown in FIG. 2 . Referring to FIG. 3 , a detailed internal configuration of the air purifier 10 according to the embodiment of the present invention can be confirmed.

The air introduced into the lower cleaning device 100 through the first suction unit 102 (refer to FIG. 1) formed in the first case 101 may pass through the first filter member 120, and at this time, the first The filter member 120 may be fixed/supported by the first filter support 135 disposed outside the first filter member 120 .

The air passing through the first filter member 120 may flow upward and may be introduced into the first blowing fan 160 through the first fan inlet 151 and upward by the first blowing fan 160 . The blown air may pass through the first fan housing 150 , the first lower air guider 170 , the second lower air guider 180 , and the lower discharge guider 190 in order to flow upward. At this time, the first blowing fan 160 may be connected to the first fan motor 165 to receive power from the first fan motor 165 to rotate.

The air blown upward by the first blowing fan 160 is discharged to the outside of the lower cleaning device 100 through the lower discharge guider 190, and the flow to the upper side is restricted by the wind direction control device 400 and flows in the radial direction of the air purifier 10 .

An annular lever support device 560 for supporting the second filter member 220 or the lever device may be disposed above the wind direction control device 400 .

The air introduced into the upper cleaning device 200 through the second suction unit 202 (refer to FIG. 1) formed in the second case 201 may pass through the second filter member 220 and flow upward.

The air flowing upward can be blown upward by the second blowing fan 260 that is connected to the second fan motor 265 and rotates, and the second fan housing 250 and the first upper air guider 270 . and the second upper air guider 280 may be sequentially passed to flow upward.

The wind direction conversion device 300 may be movably installed on the upper side of the second upper air guider 280 , and the air discharged from the second upper air guider 280 is formed on the upper side of the wind direction conversion device 300 . It may be discharged to the outside through the upper air discharge port (305). At this time, so that the air that has passed through the first upper air guider 270 passes through the second upper air guider 280 and the upper air outlet 305 in turn to be smoothly discharged to the outside, the wind direction switching device 300 A third blowing fan 330 that is connected to the third fan motor 335 and rotates may be disposed there.

In order to control the flow direction of the air discharged to the outside through the upper air outlet 305 by the third blower fan 330 , the wind direction conversion device 300 is connected to the inverting gear motor 363 and rotates. The inverting gear 360 may be mechanically connected, and the wind direction conversion device 300 rotates in a predetermined direction by the rotation of the inverting gear 360 in the flow direction of the air discharged to the outside through the upper air outlet 305 . can be converted

Operation information of the air purifier 10 is displayed on the upper surface of the wind direction conversion device 300 , and a control display 600 for controlling the operation of the air purifier 10 may be disposed, and the control display 600 is a control unit (618). The control unit 618 may be disposed in a space between the upper surface of the wind direction conversion device 300 and the third blowing fan 330 , and a PCB substrate may be used as the control unit 618 . The controller 618 may be electrically connected to the wind direction control device 400 to be described later to control the driving of the wind direction control device 400 .

4 is a view showing each of the components of the base 20 and the lower cleaning device 100 subdivided. Hereinafter, with reference to FIG. 4 , the base 20 , the lower suction grill 110 , the support device 140 , the first filter member 120 , the first filter frame 130 , and the first fan The detailed configuration and coupling relationship of the housing 150, the first lower air guider 170, and the first blowing fan 160 will be described. In addition, the contents of each configuration described with reference to FIG. 4 may be equally applied to each configuration of the lower cleaning device 100 and the corresponding upper cleaning device 200 .

The base 20 includes a base body 21 placed on the ground and a base protrusion 22 protruding upward from the base body 21 to seat the suction grill 110 . The base protrusion 22 may be provided on both sides of the base 20, and the base body 21 and the suction grill 110 are spaced apart from each other by the base protrusion 22, so that the base 20 and the suction grill 110 ) between the third suction part 103 may be formed.

A lower suction grill suction part 112 composed of a plurality of suction holes 112a may be formed on the edge 111a of the lower suction grill 110, and the lower suction grill body of an annular shape inward from the edge 111a ( 111) can be extended. A lower suction grill groove part 114 may be formed in a part of the lower suction grill body 111, and the lower suction grill groove part 114 is understood as a space in which the suction hole 112a is not formed in the edge 111a. can be In addition, a plurality of filter guide portions 113 for guiding the upward or downward movement of the first filter member 120 may protrude from the upper surface of the lower suction grill body 111 while being spaced apart in the circumferential direction.

The first filter member 120 may have a cylindrical shape with a filter hole 122 formed therein surrounded by the filter body 121 , and a filter holding part 121a may protrude from the lower side of the filter body 121 .

The lever device 142 that is provided on the upper side of the lower suction grill 110 and can be operated by the user may be installed to be rotatable in the circumferential direction. The lever device 142 may have an annular shape, and may include a lever body 143 that forms an overall external shape. A plurality of cutouts 145 may be formed in the lever body 143 at positions corresponding to the filter guide part 113 , and the cutouts 145 may be understood as through holes formed in the lever body 143 . can The filter guide part 113 may be inserted into the cutout 145 and protrude upward of the lever body 143 . A second handle 144 may be provided on the outer peripheral surface of the lever body 143 , and the second handle 144 may be provided with a movable space by the lower suction grill groove portion 114 .

A support device 140 for supporting the first filter member 120 may be disposed on an upper side of the lever device 142 , and a filter guide part protruding upward from the lever body 143 on a lower surface of the support device 140 . A support protrusion (not shown) in contact with the 113 may be formed. The support device 140 may include a first handle 141 coupled to the second handle 144 , and the user grips the handles 141 and 144 to hold the lever body 143 and the support device 140 . can be rotated

The description of the lever device 142 and the support device 140 can be equally applied to the lever support device 560 of the upper cleaning device 200 .

A first filter frame 130 forming a mounting space for the first filter member 120 may be disposed on the upper side of the support device 140 , and the first filter frame 130 is the first filter frame 130 . It may include a first frame 131 forming a lower portion and a second frame 132 forming an upper portion. The first frame 131 may have a frame recessed portion 131a that is depressed downward, and the frame recessed portion 131a is formed at a position corresponding to the lower suction grill groove portion 114, so that the handle 141, 144) may provide a space for rotation. The first filter support part 135 may be disposed to extend from the first frame 131 to the second frame 132, and a plurality of the first filter support parts 135 are formed along the edges of the frames 131 and 132 in the circumferential direction. They may be spaced apart. A first filter support cover 136 may be coupled to the outer side of the first filter support 135 , and the first filter member 120 is formed by the frames 131 and 132 and the first filter support 135 . The mounting space can be defined. The first filter member 120 may be mounted into the mounting space, and the sensor device 137 may be disposed on the first filter frame 130 .

A first fan housing 150 forming a housing space 152 accommodating the first blowing fan 160 may be disposed at the outlet side of the first filter member 120 . The first fan housing 150 may be supported by the first filter frame 130 , and an ionizer 158 for removing/sterilizing pollutants or odor particles in the air is disposed in the first fan housing 150 . can be

The first blowing fan 160 may be accommodated in the housing space 152 , and connected to the first fan motor 165 and the first fan motor rotation shaft 165a by the first fan motor coupling unit 166 . may be coupled to the first fan motor 165 by the In addition, the first fan motor coupling part 166 may perform a function of fastening the first fan motor 165 to be fixed to the first lower air guider 170 .

The first lower air guider 170 may be disposed on the upper side of the first blowing fan 160 , and the first cylindrical first outer wall 171 and the first cylindrical first outer wall 171 located inside the above-described first outer wall 171 . It may include an inner wall 172 . An air flow passage may be formed between the first outer wall 171 and the first inner wall 172, and a first fan motor accommodating part (Bowl) type accommodating the first fan motor 165 ( 173) may be formed to extend downwardly from the first inner wall 172. At this time, the first fan motor rotating shaft 165a extends downward from the first fan motor 165 and passes through the bottom surface of the first fan motor accommodating part 173 , and is then coupled to the first blowing fan 160 . can A fastening rib 178 that protrudes upwardly and is fastened with a fastening guide 183 (refer to FIG. 6 ) formed under the second lower air guider 180 may be formed on the upper surface of the first fan motor accommodating part 173 . have. Between the first outer wall 171 and the first inner wall 172, a plurality of air guide ribs 175 extending from the first outer wall 171 to the first inner wall 172 may be formed to be spaced apart in the circumferential direction. And, the air passing through the first lower air guider 170 may be guided by the flow direction by the air guide rib (175).

Hereinafter, a wind direction control device 400 according to an embodiment of the present invention will be described with reference to FIGS. 5 and 6 .

5 is a schematic internal configuration diagram of a lower cleaning device 100 according to an embodiment of the present invention, and FIG. 6 is a lower discharge guider 190 in the wind direction control device 400 according to an embodiment of the present invention. It shows that the second lower air guider 180 is coupled.

Referring to FIG. 5 , the lower discharge guider 190 may be disposed on the upper side of the first case 101 forming the outer shape of the lower cleaning device 100 , and accordingly, the edge of the upper side of the lower cleaning device 100 . may have the shape of a discharge grill by the air discharge port 105 formed in the lower discharge guider 190 (see FIG. 8).

The wind direction control device 400 is spaced apart from the upper side of the lower discharge guider 190, and as the wind direction control device 400 and the lower discharge guider 190 are vertically spaced apart, the wind direction control device 400 and the air outlet ( 105) between the upper and lower radial discharge ports (G) are formed.

The lower discharge guide 190 and the wind direction control device 400 may be connected to each other by the cylindrical neck 401 , and accordingly, the height of the radial discharge port G may be greater than or equal to the height of the neck 401 .

The radius discharge port G is a concept for describing the flow path of the air discharged through the air discharge port 105, and is understood as a concept in which the wind direction control device 400 and the air discharge port 105 are spaced apart from each other as well as the wind direction. It can also be understood as a spatial concept formed between the control device 400 and the lower discharge guider 190 .

At least a portion of the radius discharge port G is blocked from the outside by the elevation assembly 450 to be described later, and this means that the elevation assembly 450 borders at least a portion of the radius discharge hole G with the external area. It can be understood as building.

The air discharged to the radial discharge port G through the air discharge port 105 is restricted from flowing upward by the wind direction control device 400 disposed on the upper side of the lower discharge guider 190, and the lower cleaning device 100 is discharged in the radial direction of A lever support device 560 for supporting the second filter member 220 of the upper cleaning device 200 may be disposed on the upper side of the wind direction control device 400 , and accordingly, the wind direction control device 400 is used as a boundary. The components disposed on the lower side may be defined as the lower cleaning device 100 , and the components disposed on the upper side may be defined as the upper cleaning device 200 .

Referring to FIG. 6 , the second lower air guider 180 has a cylindrical second outer wall 181 disposed outside, and a second cylindrical inner wall 182 disposed inside the second outer wall 181 . may include The second outer wall 181 and the second inner wall 182 are radially spaced apart from each other, and a discharge passage providing an air flow passage in the vertical direction between the second outer wall 181 and the second inner wall 182 ( 180a) may be formed. In addition, a fastening guide 183 protruding downward may be formed in the lower portion of the second lower air guider 180, and the fastening guide 183 is a fastening rib 178 formed in the first lower air guider 170 ( 4), so that the air flow passages formed in the first lower air guider 170 and the second lower air guider 180 communicate with each other.

A lower discharge guider 190 may be disposed above the second lower air guider 180 , and a neck 401 may be connected to an upper side of the lower discharge guider 190 . The neck 401 may have a cylindrical shape, and the outer diameter of the neck 401 may be the same as or larger than the inner diameter of the lower discharge guider 190 . The neck 401 may be in a concentric relationship with the lower discharge guider 190 , and the rotational axis of the flow guider 460 , which will be described later, may be the same as the central axis of the neck 401 .

Hereinafter, with reference to FIGS. 7 and 8 , a lifting action and a rotation action of the wind direction control device 400 according to an embodiment of the present invention will be generally described.

7, (a) is a perspective view in a state in which the lifting assembly 450 of the wind direction control device 400 is raised, (b) is a perspective view in a state in which the lifting assembly 450 is lowered, (c) ) is a perspective view in a rotated state after the lifting assembly 450 is lowered. 8 is a view showing the lower discharge guider 190 viewed through the upper side.

The wind direction control device 400 according to the embodiment of the present invention is connected to the upper end of the neck 401 and the upper assembly 410 disposed to be spaced apart from the lower discharge guider 190, and the central axis of the neck 401 is a rotation axis. It is rotatable and includes a lifting assembly 450 that can be raised and lowered between the radial discharge ports (G). At this time, the upper assembly 410 does not move by the driving of the wind direction control device 400 and can be understood as an assembly of components fixed at the same position, and the elevation assembly 450 is the wind direction control device 400 of the It can be understood as an aggregate of components having a degree of freedom that is moved by driving. The upper assembly 410 is spaced upward from the lower cleaning device 100 to form a radial discharge port (G) between the lower cleaning device 100 and the lower cleaning device 100, and the elevation assembly 450 is discharged from the radial discharge port (G). It is cylindrical in shape with some arcs opened to limit the wind direction of the resulting air.

Referring to (a) of FIG. 7 , in the state in which the elevating assembly 450 is raised, the wind direction control device 400 has both the upper assembly 410 and the elevating assembly 450 upward from the lower discharge guider 190. In a spaced state, referring to FIG. 8 , the air discharged from the lower discharge guider 190 may be discharged at 360 degrees in a radial direction.

Referring to (b) of Figure 7, the wind direction control device 400 in a state in which the elevating assembly 450 is lowered, the upper assembly 410 is a state spaced upward from the lower discharge guider 190, the elevating assembly Reference numeral 450 denotes a state in contact with the upper surface of the lower discharge guider 190 . At this time, referring to FIG. 8 , the lower end of the elevating assembly 450 may be in contact with the annular seating rim 191 formed on the outside of the lower discharge guider 190 . In more detail, it can be understood that the lower end of the flow guider 460 and the seating rim 191, which will be described later, come into contact with each other during the configuration of the elevating assembly 450 .

In a state in which the lifting assembly 450 is lowered, some of the plurality of air outlets 105 of the lower discharge guider 190 are shielded by a support plate 470 (see FIG. 9 ) to be described later among the configuration of the lifting assembly 450 . can be The support plate 470 may be located at the lowermost side of the elevating assembly 450 , and the lower surface thereof may shield the air outlet 105 according to the descent of the elevating assembly 450 , and thus the shielded air outlet 105 . ) to block air discharge.

The lifting assembly 450 descends, so that the air discharged from the lower discharge guider 190 can be guided so that it can flow to the outside only through the opened arc of the flow guider 460, which will be described later, as shown in Fig. 7 ( In case b), the opened arc is formed toward the right. At this time, the air discharged from the lower discharge guider 190 is discharged to the outside through the first area S1.

Referring to (c) of Figure 7, the flow guider 460 to be described later in the configuration of the elevation assembly 450 in a state in which the elevation assembly 450 is lowered can be rotated with the central axis of the neck 401 as the rotation shaft, and , the position of the opened arc formed in the flow guider 460 may be changed accordingly.

Comparing FIG. 7(b) and FIG. 7(c), the position of the open arc arc of the flow guider 460 in a state in which the elevating assembly 450 is lowered is toward the right in the case of FIG. 7(b). is formed, and in the case of Figure 7 (c) is formed toward the front. Accordingly, in the case of FIG. 7(b), the air discharged from the lower discharge guider 190 is discharged to the outside only through the first region S1, and in the case of FIG. 7(c), the air discharged from the lower discharge guider 190 The discharged air is discharged to the outside only through the second region S2.

According to Figure 7, the lifting assembly 450 of the wind direction control device 400 according to the embodiment of the present invention has the freedom of movement in the upper and lower planes to determine the position of the region where air is discharged from the lower discharge guider 190 by descending. It is possible to limit the rotational freedom in the circumferential direction so that the positions S1 and S2 where the space between the wind direction control device 400 and the lower discharge guider 190 communicate with the external space can be changed by rotation.

Hereinafter, detailed configurations of the wind direction control device 400 according to an embodiment of the present invention will be described with reference to FIGS. 9 and 10 .

9 is an exploded perspective view of the configuration shown in FIG. 6 into an upper assembly 410, a lifting assembly 450, a neck 401, and a lower cleaning device configuration 180, 190, FIG. 10 is FIG. It is an exploded perspective view of each configuration shown in the detailed configuration.

Referring to FIG. 9 , the upper assembly 410 has a accommodating space S for accommodating the raised lifting assembly 450 and a cover body 420 connected to the upper cleaning device 200 upwardly, and the cover It may be composed of a fixed frame 430 accommodated in the interior of the sieve 420, and the elevating assembly 450 has a cylindrical flow guider 460 in which a portion of an arc is opened and rotatably disposed, and elevating and lowering. It may be composed of a support plate 470 disposed on the lowermost side of the assembly 450 to shield a portion of the lower discharge guider 190 by descending.

The lower side of the neck 401 is connected to the upper side of the lower discharge guider 190, the upper side of the neck 401 is connected to the lower end of the fixed frame 430, and the lower cleaning device 100 by the neck 401 ) and the wind direction control device 400 may be interconnected.

Referring to FIG. 10 , the upper assembly 410 includes a first motor 434 that applies power to enable the vertical movement of the lifting assembly 450 , and the first motor 434 is the inner side of the fixed frame 430 . can be accepted in

The lifting assembly 450 includes a second motor 474 for giving power to enable rotation of the flow guider 460, an upper stopping plate 480a for accommodating the second motor 474, and an upper stopping It may include a low-stop plate (480b) coupled to the plate (480a). At this time, the upper stopping plate 480a and the lower stopping plate 480b may be combined as an integral stopping plate 480 .

The cover body 420 includes a cover body outer wall 421 forming a space capable of accommodating the fixing frame 430 therein, and an annular cap 422 extending inwardly from the upper end of the cover body outer wall 421 . may include The cover body outer wall 421 may have a cylindrical shape, and a structure for coupling with the upper cleaning device 100 may be formed on the upper surface of the cap 422 . The upper and lower portions of the cover body 420 may be opened in a circular shape, and the diameter of the lower open region may be larger than the diameter of the upper open region.

The fixed frame 430 may be fixed while being accommodated inside the cover body 420 , and the fixed frame outer wall 431 disposed on the outermost side and having an arc shape in cross section, and the fixed frame outer wall 431 . It may include a fixed frame hollow body 432 disposed on the inside, and a fixed frame base 433 extending inward from the lower end of the fixed frame outer wall 431 and connected to the lower end of the fixed frame hollow body 432 . have.

The fixed frame outer wall 431 and the fixed frame hollow body 432 may be spaced apart from each other in the radial direction, and a first motor 434 is located in a space between the fixed frame outer wall 431 and the fixed frame hollow body 432 . can be placed. In addition, the fixed frame outer wall 431 spaced apart from each other and the lower portion of the fixed frame hollow body 432 may be connected by a fixed frame base 433 , and accordingly, the first motor 434 is the fixed frame base 433 of the fixed frame base 433 . It may be supported by being seated on the upper surface.

The meaning of the above-mentioned 'the shape of the cross-section of the fixed frame outer wall 431 is arc (arc)', similar to the shape of the flow guider 460, can be understood as a side surface of a partially opened cylinder, and the flow guider When the fixed frame outer wall 431 is cut in a plane perpendicular to the axis of rotation 460, the shape of the cross-section may be understood as having the shape of an arc.

The overall shape of the flow guider 460 may be similar to the fixed frame outer wall 431, and the cross-section as described above may be in the shape of an arc. A flow guider protrusion 462 may be formed on the inner surface of the flow guider 460 , and the flow guider protrusion 462 may protrude from the lower end of the inner surface toward the center of rotation.

A second motor housing 485 may be formed on the upper surface of the upper stopping plate 480a , and the second motor 474 may be disposed in an accommodation space formed by the second motor housing 485 . A second motor through groove 485a through which the second motor 474 passes may be formed in the low stopping plate 480b, and the second motor 474 passes the second motor through groove 485a in an upward direction. It may be received into the second motor housing 485 through it. The overall appearance of the upper stopping plate (480a) and the lower stopping plate (480b) may be a horseshoe type, and the inner diameter of the upper stopping plate (480a) is larger than the inner diameter of the lower stopping plate (480b). can

The meaning of 'the overall appearance of the horseshoe (Horseshoe)' can be understood as an open ring shape with some regions, and it can be understood as having the shape of the alphabet 'C' when viewed from the top.

The overall appearance of the support plate 470 may have a shape similar to that of the stopping plate 480 , and may be a horseshoe type as described above. An upwardly extending rack 471 may be formed on the upper surface of the support plate 470 , and the rack 471 may extend vertically from the upper surface of the support plate 470 . A plurality of gear teeth may be formed on one surface of the rack 471 to be vertically spaced apart, and the rack 471 engages with the teeth of the first gear 436 of the first motor 434 to be described later and is vertically aligned. direction can be moved. Two racks 471 may be formed in pairs at both ends of the support plate 470, and the rack 471 extending upward has the rack through groove 480c formed in the low stopping plate 480b upward. can penetrate

The cover body 420, the fixed frame hollow body 430, the neck 401, and the lower discharge guider 190 may have an annular shape when viewed from above, and accordingly the cover body 420. An open cover body hole 420a may be formed in the center of the fixed frame hollow body 430 , and an open fixed frame hole 430a may be formed in the center of the fixed frame hollow body 430 , and the neck hole 401a is formed in the center of the neck 401 . ) may be formed, and a lower discharge guider hole 190a may be formed in the center of the lower discharge guider 190 . At this time, the inner diameters of the cover body hole 420a, the fixed frame hole 430a, the neck hole 401a, and the lower discharge guider hole 190a may all be the same, so that the configuration shown in FIG. 6 is viewed from the upper side. When viewed, the peripheral surfaces of the holes 420a, 430a, 401a, and 190a may form continuous surfaces in the upper and lower directions.

A PCB substrate (not shown) electrically connected to the first motor 434 and the second motor 474 to control the driving of the first motor 434 or the second motor 474 is disposed in the neck hole 401a. can

Hereinafter, the fixed frame 430 and the lifting assembly 450 accommodated in the cover body 420 will be described with reference to FIG. 11 .

The inner diameter of the cover body 420 may be greater than the outer diameter of the fixed frame 430 and the lifting assembly 450, and accordingly the fixed frame 430 and the lifting assembly 450 are accommodated in the cover body 420. can

The outer diameter of the flow guider 460 may be larger than the inner diameter of the seating rim 191 formed on the outside of the lower discharge guider 190, and accordingly, when the flow guider 460 is lowered, the lower side of the flow guider 460 is The end and the upper surface of the seating rim 191 may be in contact with each other.

The fixed frame 430 may include a first motor housing 435 extending radially from the fixed frame hollow body 432 and connected to the fixed frame outer wall 431 . The first motor housing 435 may be connected to each of one end and the other end of the fixed frame outer wall 431 , and accordingly, to set the circumferential boundary of the space between the fixed frame outer wall 431 and the fixed frame hollow body 432 . can The first motor housing 435 may be connected to a position spaced a predetermined distance from one end and the other end of the fixed frame outer wall 431, and thus the first motor connected to one end and the other end of the fixed frame outer wall 431 As spaced apart from the housing 435 , a first motor accommodating portion 435s in which the first motor is accommodated may be formed between the two types of first motor housings 435 . The first motor accommodating portion 435s may be respectively formed at one end and the other end in the circumferential direction of the fixed frame 430 . The first motor 434 may be accommodated in the first motor accommodating part 435s and seated on the upper surface of the fixed frame base 433 .

The elevating assembly 450 may be disposed such that the flow guide 460 surrounds a portion of the outer circumferential surface of the fixed frame 430 . In a portion of the inner circumferential surface of the flow guider 460 that does not surround the outer circumferential surface of the fixed frame 430 , an internal gear 461 composed of a plurality of gear teeth may be formed. A plurality of teeth of the internal gear 461 in the circumferential direction of the flow guider 460 may be formed at equal intervals.

A second motor housing 485 accommodating the second motor 474 may be formed on the upper surface of the stopping plate 480 of the lifting assembly 450 . The second motor housing 485 may extend upwardly from the upper surface of the stopping plate 480, and the overall shape of the longitudinal cross-section may be a 'C' shape. As the overall shape of the second motor housing 485 is formed in a 'C' shape, the second motor 474 may be accommodated in the concave portion of the second motor housing 485, and the second motor 474 may be connected to a second gear 476 to be described later to rotate the second gear 476 . The second gear 476 may be engaged with the internal gear 461 to rotate the flow guider 460 in the circumferential direction.

The rack 471 disposed in the elevating assembly 450 may protrude upward through the first motor accommodating part 435s in relation to the fixed frame 430 and higher than the upper surface of the fixed frame hollow body 432 . It may protrude upward. The rack 471 is connected to the first motor 434 and is engaged with the rotating first gear 436 to move in the vertical direction.

Hereinafter, a positional relationship between the fixed frame 430 and the elevating assembly 450 will be described with reference to FIGS. 12 and 13 .

12 is a perspective view illustrating the positional relationship between the lifting assembly 450 and the fixed frame 430 in a state in which the lifting assembly 450 is raised, and FIG. 13 is the lifting assembly 450 and the fixed frame shown in FIG. It is a perspective view showing the separated 430.

12, the fixed frame outer wall 431 and the flow guide 460 may have an arc-shaped part with an open portion, and a central axis passing through the center Y on the cross-section of the two components 430 and 460 ( Z) may be the same. The flow guide 460 may rotate with the central axis Z as the rotation axis by the rotation of the second motor 474 .

The central angle at which the inner circumferential surface 460a of the arc-type flow guider 460 extends may be greater than the central angle at which the outer circumferential surface of the arc-type fixed frame outer wall 431 extends, and thus Accordingly, the flow guide 460 may surround a portion of the outer circumferential surface of the fixed frame outer wall 431 to form overlap sections O1 and O2.

The overlap sections O1 and O2 may be arc-shaped sections having a predetermined central angle from the center Y.

When viewed from the top, the inner circumferential surface of the neck 401 and the inner circumferential surface of the fixed frame hollow body 432 may form a continuous surface in the vertical direction.

The internal gear 461 may be formed on the inner circumferential surface 460a of the flow guider 460 , and may rotate in engagement with the second gear 476 accommodated in the second motor housing 485 . At this time, the second gear 476 is connected to the second shaft 474a of the second motor 474 seated on the upper surface of the stopping plate 480, and can rotate integrally with the second shaft 474a. have.

Referring to FIG. 13 , the shape and arrangement position/height of the rack 471 disposed on the elevating assembly 450 can be confirmed.

A flow guider 460 is disposed on the outside of the elevation assembly 450 , and other components 470 and 480 of the elevation assembly 450 may be disposed inside the flow guider 460 .

In the inner space of the flow guider 460, a support plate 470 may be disposed at a lower portion, and a low-stopping plate 480b is disposed on an upper side of the support plate 470, the upper surface of the support plate 470 and the low-stopping plate The lower surfaces of (480b) may be in contact with each other. An upper stopping plate 480a is disposed on the upper side of the lower stopping plate 480b, so that the upper surface of the lower stopping plate 480b and the lower surface of the upper stopping plate 480a are in contact with each other.

The inner diameter of the upper stopping plate (480a) may be greater than the inner diameter of the lower stopping plate (480b), the rack 471 is the inner peripheral surface of the upper stopping plate (480a) and the lower stopping plate (480b) may be disposed between the inner circumferential surfaces of The rack 471 may extend upward from the upper surface of the support plate 470, and one surface of the rack 471 is located inside the support plate 470 to form a continuous surface with the inner circumferential surface of the support plate 470. can The rack 471 may pass through the rack through-groove 480c (see FIG. 10) formed in the low-stopping plate 480b.

The height of the rack (H1) may be higher than the height of the flow guider (H2) and the height of the outer wall of the fixed frame (H3). The rack 471 may extend from the support plate 470 to a position higher than the upper surface of the fixed frame hollow body 432 . The rack 471 may be inserted into the rack seating groove 432a formed in the outer wall of the fixed frame hollow body 432, and accordingly, at least one surface of the rack 471 is to be in contact with the outer wall of the fixed frame hollow body 432. can The rack seating groove 432a may be formed by being depressed inwardly from the outer circumferential surface of the fixed frame hollow body 432, and one surface of the rack 471 may be in contact with the recessed inner surface of the rack seating groove 432a. In addition, the other surface opposite to the one surface on which the teeth are formed may be located outside the rack seating groove (432a).

Hereinafter, an operating principle of the wind direction control device 400 according to an embodiment of the present invention will be described with reference to FIG. 14 .

14 is a perspective view of the structure shown in FIG. 12 from above.

A cover body 420 may be disposed on the outside of the lifting assembly 450 and the fixing frame 430 , and the lifting assembly 450 and the fixing frame 430 may be accommodated in the cover body 420 . The flow guide 460, the fixed frame outer wall 431, and the cross section of the cover body outer wall 421 may be an arc (arc) shape or a circular shape sharing the center (Y). The outer diameter (D1) of the flow guider and the outer diameter (D2) of the outer wall of the fixed frame may be smaller than the outer diameter (D3) of the outer wall of the cover body, and the outer diameter (D1) of the flow guider is the outer diameter (D2) of the outer wall of the fixed frame ) can be greater than In addition, the outer circumferential surface of the fixed frame outer wall 431 may be in contact with a portion of the inner circumferential surface 460a of the flow guider 460 to form overlapping sections O1 and O2, and the flow guider 460 may have an outer circumferential surface. The circumferential surface may be in contact with the inner circumferential surface of the cover body outer wall 421 .

The rack 471 accommodated in the rack seating groove 432a formed in the outer wall of the fixed frame hollow body 432 may be engaged with the first gear 436 . The first motor 434 accommodated in the first motor housing 435 may provide rotational power to the first gear 436 through the first shaft 434a, and the rack by rotation of the first gear 436 (471) can move up and down.

The internal gear 461 formed on the inner circumferential surface 460a of the flow guider 460 may mesh with the second gear 476 . The second motor 474 accommodated in the second motor housing 485 can apply rotational power to the second gear 476 through the second shaft 474a, and the second gear 476 is inscribed by the rotation. The gear 461 may rotate in the circumferential direction.

In this case, the gear ratio between the first gear 436 and the rack 471 may be greater than the gear ratio between the second gear 476 and the internal gear 461 . In more detail, the number of teeth per unit circumference of the first gear 436 and the second gear 476 is the same, and the diameter of the first gear 436 is smaller than the diameter of the second gear 476. can However, the gear ratio of the first gear 436 and the rack 471 and the gear ratio of the second gear 476 and the internal gear 461 is the output of the motors 434 and 474, the user's Design modification will be possible depending on various factors such as demand, user's demand for rapid rotational movement, and the size and arrangement of each component.

Hereinafter, a stopper structure for limiting the rotation radius range of the flow guider 460 will be described with reference to FIGS. 14 and 15 .

The lifting assembly 450 descends, so that it can shield a part of the open air outlet 105 of the lower discharge guider 190, and specifically, the lower surface of the support plate 470 covers the upper side of the air outlet 105 to cover the air It blocks air from being discharged to the discharge port 105 . Accordingly, the air discharged through the lower discharge guider 190 may be discharged only through an area not shielded by the support plate 470 . Accordingly, the flow rate of the air discharged through the lower discharge guider 190 may be faster than when the air is discharged to the entire 360 degree area. This may be understood to be due to the nozzle ring phenomenon that occurs due to the restriction of the flow path of the air.

The air discharged from the lower discharge guider 190 through the area not shielded by the support plate 470 is discharged to the outside of the air cleaner 10 through the open arc of the flow guider 460 . The air purifier 10 according to the embodiment of the present invention can adjust the flow direction of the clean air discharged from the air purifier 10 by changing the position of the opened arc of the flow guider 460 . As described above, this may be achieved by driving the second gear 476 and the internal gear 461 to rotate while meshing. For example, as shown in FIG. 15 , the air discharged from the lower discharge guider 190 may be discharged to the outside through an air discharge area DA.

At this time, in order to limit the rotation radius range in which the flow guider 460 rotates, a stopping rib 481 and a stopping groove 481a may be formed in the stopping plate 480, and the flow guider 460 is formed. may include a flow guider protrusion 462 and a stopper 462a.

The stopping rib 481 may be formed to protrude upward from the top surface of the stopping plate 480 , and an opened stopping groove 481a may be formed inside the stopping rib 481 . The stopping groove 481a may be formed in the circumferential direction so that the distance from the center Y is the same.

The flow guider protrusion 462 may be formed to protrude from the inner circumferential surface 460a of the flow guider 460 toward the center Y, and a portion of the flow guider protrusion 462 is opened up and down, and the opening The stopper 462a may be penetrated to the designated area.

When the flow guider 460 rotates, the stopper 462a can move inside the stopping groove 481a, and when the flow guider 460 rotates by a predetermined angle or more, it is caught on both ends of the stopping rib 481 Further movement may be restricted. A fastening member for performing the above-described function may be used as the stopper 462a, and preferably a screw may be used.

The stopping rib 481, the stopping groove 481a, the flow guider protrusion 462, and the stopper 462a may be understood as a single assembly for limiting the rotation radius range of the flow guider 460. In addition, the assembly may be symmetrically disposed with respect to the second shaft 474a in pairs. Due to the stopping function of the assembly, the second gear 476 and the internal gear 461 can be stably engaged and rotated without being separated from each other.

The inner radius (R1) of the flow guider may be smaller than the inner radius of the seating rim 191, and the inner radius (R2) of the support plate may be smaller than the inner radius (R3) of the upper stopping plate.

As a factor determining the air discharge area DA that is changed by the rotation of the flow guider 460, the flow guider central angle θ1 (first central angle) of the open arc of the flow guider 460 may be used. have. The flow guider central angle θ1 may be understood as an angle between the center Y and two lines drawn by connecting both ends of the flow guider 460 in the circumferential direction. The flow guider central angle θ1 may have an acute angle or a 90 degree angle.

As a factor determining the horseshoe-shaped discharge area that is not shielded by the support plate 470, and air is discharged through the air outlet 105, the air outlet central angle θ2 (second center angle) can be used. have. The central angle θ2 of the air outlet may be understood as an angle formed by two lines connecting the center Y and both outer ends of the support plate 470 in the circumferential direction. The size of the central angle θ2 of the air outlet may be an obtuse angle, and may be larger than the size of the central angle θ1 of the flow guider.

As a factor for determining the angular range in which the rotation of the flow guider 460 is restricted, the arc-shaped stopping groove center angle θ3 (the third central angle) in which the stopping groove 481a is dug may be used. . The stopping groove central angle θ3 may be understood as an angle formed by two diagrams connecting the center Y and both ends of the stopping groove 481a in the circumferential direction. The size of the stopping groove central angle θ3 may be an acute angle.

A value obtained by adding the size of the central angle θ3 of the stopping groove to the size of the central angle θ1 of the flow guider may be smaller than the size of the central angle θ2 of the air outlet (θ1+ θ3 < θ2). Accordingly, it is possible to reduce the vortex generation of the air discharged through the air discharge port 105, thereby preventing the loss of the discharged air.

Hereinafter, the vertical movement of the lifting assembly 450 will be described with reference to FIG. 16 . 16 is a cross-sectional view taken along the line P-P' of the structure shown in (a) of FIG. 7 .

As described above, the first gear 436 rotates in engagement with the rack 471 , and accordingly, the lifting assembly 450 including the rack 471 may perform a lifting or lowering motion. The vertical movement of the lifting assembly 450 is made by a 'first gear set', and the 'first gear set' refers to all the components of the wind direction control device 400 for vertical movement of the lifting assembly 450. could be a concept. The 'first gear set' may include a first motor 434 , a first gear 436 , and a rack 471 .

The lifting assembly 450 may move up and down between the radial discharge ports G in parallel with the height direction of the neck 401, which may mean that it moves up and down in the same direction as the central axis Z. . The vertical movement of the lifting assembly 450 may be controlled by a control unit 618 disposed on the control display 600 or a PCB substrate (not shown) disposed on the neckhole 401a, and the control unit 618 and the PCB substrate ( (not shown) may receive the received information and control the driving of the first motor 434 .

Hereinafter, the rotational motion of the flow guider 460 will be described with reference to FIG. 17 . Fig. 17 (a) is a cross-sectional view of the structure shown in Fig. 7 (a) taken along the QQ' line, and Fig. 17 (b) is the structure shown in Fig. 7 (b) cut along the RR' line. It is one cross section.

Referring to (a) of FIG. 17 , the lifting assembly 450 is raised and accommodated in the cover body 420 . At this time, the second motor 474 and the second gear 476 may not rotate.

Referring to (b) of FIG. 17 , the lifting assembly 450 is descended and the support plate 470 is in a state in which a portion of the lower discharge guider 190 is shielded. At this time, the second motor 474 and the second gear 476 may be rotated. As described above, by the rotation of the second gear 476, the internal gear 461 meshed with the second gear 476 is rotated, and the flow guider 460 moves the central axis Z of the neck 401. It can be rotated as a rotating shaft. The rotational movement of the flow guider 460 is made by a 'second gearset', and the 'second gearset' refers to all the components of the wind direction control device 400 for the rotational movement of the flow guider 460. could be a concept. The 'second gear set' may include a second motor 474 , a second gear 476 , and an internal gear 461 .

The rotational movement of the flow guider 460 may be controlled by a control unit 618 disposed on the control display 600 or a PCB substrate (not shown) disposed on the neckhole 401a, and the control unit 618 and the PCB substrate ( (not shown) may receive the received information and control the driving of the second motor 474 .

In the above, preferred embodiments of the present invention have been illustrated and described, but the present invention is not limited to the specific embodiments described above, and in the technical field to which the present invention belongs, without departing from the gist of the present invention as claimed in the claims Various modifications may be made by those of ordinary skill in the art, and these modifications should not be individually understood from the technical spirit or perspective of the present invention.

10: air purifier 100: lower cleaning device
200: upper cleaning device 300: wind direction switching device
400: wind direction control device 410: upper assembly
420: cover body 430: fixed frame
450: elevating assembly 460: flow guider
470: base plate 480: stopping plate

Claims (18)

a lower cleaning device having an annular air outlet opening upward and having a blower fan disposed therein; and
and a wind direction control device spaced upward from the lower cleaning device to form a radial outlet through which the air discharged from the air outlet flows outward in a radial direction,
The wind direction control device,
an upper assembly spaced apart from the lower cleaning device and forming the radial discharge port between the lower cleaning device and the upper assembly;
a lifting assembly in which some arcs of the outer circumferential wall are opened and limiting a wind direction of air discharged to the radial outlet;
a first gear disposed on the upper assembly and configured to vertically move the lifting assembly;
and a second gear disposed on the elevating assembly and configured to move the elevating assembly in a circumferential direction.
The method of claim 1,
The lifting assembly is
a flow guider having an internal gear meshing with the second gear formed on the inner circumferential surface and having a partial arc of the outer circumferential wall opened;
The air purifier comprising a rack (Rack) in which the teeth (Gear tooth) meshing with the first gear are formed in the vertical direction.
3. The method of claim 2,
The lifting assembly is
Further comprising a support plate disposed at the lower end of the flow guider,
The rack is an air purifier extending upward from the upper surface of the support plate.
4. The method of claim 3,
One surface of the rack is an air cleaner that forms a continuous surface with the inner peripheral surface of the support plate.
4. The method of claim 3,
The height at which the rack is extended is higher than the height of the flow guider.
4. The method of claim 3,
The lifting assembly is
Further comprising a stopping plate disposed on the upper side of the support plate,
An air purifier having a second motor housing accommodating a second motor connected to the second gear is formed on an upper surface of the stopping plate.
7. The method of claim 6,
The flow guider,
It protrudes inward from the inner circumferential surface and includes a flow guider protrusion to which a stopper is connected,
The stopping plate is
An air purifier in which the stopper is accommodated and an arc-shaped stopping groove for limiting a rotation radius of the flow guider is formed.
8. The method of claim 7,
The stopping groove is
A plurality of air purifiers are formed so as to be symmetrical with respect to a second shaft connecting the second motor and the second gear.
8. The method of claim 7,
The opened arc of the flow guider has a first central angle,
The air outlet that is not shielded by the support plate has a second central angle,
The size of the first central angle is smaller than the size of the second central angle.
10. The method of claim 9,
The stopping groove has a third central angle,
The sum of the first central angle and the third central angle is smaller than the size of the second central angle.
The method of claim 1,
Further comprising a cylindrical neck (Neck) for connecting the lower cleaning device and the wind direction control device,
The lifting assembly is
An air purifier moving in the circumferential direction with the central axis of the neck as a rotation axis.
The method of claim 1,
An annular seating rim is formed on the outside of the air outlet,
The lower portion of the elevating assembly is in contact with the seating rim when the elevating assembly is lowered, the air purifier.
The method of claim 1,
The upper assembly,
a cover body for accommodating the elevating assembly;
and a fixed frame on which the first gear and the first motor connected to the first gear are seated.
14. The method of claim 13,
The lifting assembly is
An air purifier in which a portion of the circumference overlaps the fixed frame.
14. The method of claim 13,
The fixed frame is
a fixed frame outer wall having an arc-shaped cross section;
a fixed frame hollow body disposed inside the fixed frame outer wall;
and a fixed frame base connecting the fixed frame outer wall and the fixed frame hollow body,
The first motor and the first gear,
An air purifier disposed between the fixed frame outer wall and the fixed frame hollow body.
16. The method of claim 15,
An air purifier having a first motor housing accommodating the first motor is formed on the fixed frame.
16. The method of claim 15,
The lifting assembly is
and a rack having teeth engaged with the first gear in the vertical direction,
The rack is
An air purifier inserted into a rack seating groove formed in the fixed frame hollow body.
The method of claim 1,
Further comprising an upper cleaning device disposed on the upper side of the wind direction control device,
The upper cleaning device,
a control display for displaying driving information of the elevating assembly;
An air purifier comprising a control unit for controlling the driving of the lifting assembly.

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