CN210107589U - Humidifying air purifier - Google Patents

Abstract

The utility model provides a humidification air purifier, this humidification air purifier includes: a door assembly installed to be drawn out of or into the cabinet; a water tank disposed in an inner space of the door assembly; and a humidifying filter assembly inserted into the water tank; the water tank includes: a water tank shell which is opened upward; a base forming a bottom surface of the sump housing; a placement part recessed downward from the base by a first distance D1, and on which a water tank is placed; and an extension base recessed downward from the base by a second distance D2 longer than the first distance D1, and located below the humidification filter assembly. According to the utility model discloses, can prevent to leak at the loading and unloading in-process of water tank.

Description

Humidifying air purifier

Technical Field

The utility model relates to a humidification air purifier.

Background

An air purifier is understood to be a device that discharges purified air after taking in contaminated air and purifying. As an example, the air purifier may include: an air supply device for flowing external air into the air purifier; and a filter capable of filtering dust, bacteria, or the like in the air.

A humidifier is understood to be a device that sucks in air and humidifies and then discharges the air in order to supply moisture to the air. Conventional humidifiers are classified into a vibration type, which is a humidifier that atomizes water on a vibration plate and then spits the water into the air, and a natural evaporation type, which is a humidifier that naturally evaporates water at a humidification filter.

Recently, a humidifying air purifier that adds a humidifying function to the air purifier is being developed. For humidified air purifiers, users need to regularly clean or replace the filter and the water tank for sanitary reasons.

In addition, the humidifying air purifier includes a water tank and a water tank for storing water supplied from the water tank in order to wet the humidifying medium. Therefore, it is necessary to prevent water leakage when moving or operating the humidifying air purifier.

In connection with this, JP5370290B2 (hereinafter referred to as patent document) discloses a small humidifier that can prevent water leakage when tilted.

The small humidifier disclosed in the above patent document includes: a water storage container; a humidifying filter combined with the water storage container; a water supply container having a valve for supplying water to the water storage container; and a cover for preventing water leakage between the water storage container and the water supply container. Further, the cover is laminated with the water storage container to seal a space that may be generated between the water storage container and the water supply container or between the water storage container and the humidification filter.

However, the above patent documents have the following problems.

First, since a user fills water through a hole formed at a lower end of a water supply container (or a water tank), or water stored in the water supply container is discharged from a water storage container (or a water tank), the water stored in the water supply container may leak during the process of loading and unloading the water supply container (or the water tank).

Second, the user fills water through a hole of a relatively small diameter formed in the water supply container, difficulty is high, and there is a problem in that water may flow to the outside.

Third, there is a risk that water may leak from the water supply container during the movement to the water storage container.

Fourth, there is a problem in that the water level supplied to the water storage container cannot be detected.

Fifth, there is a problem in that it is inconvenient to clean, manage, and replace the water storage container (or the water tank), the water supply container (or the water tank), and the humidification filter.

Sixth, there is no disclosure of a structure of a water tank, and a humidifying filter that can prevent overflow or water leakage when a user applies an external force. In particular, in the case where a user applies an external force for drawing or drawing, it is necessary to prevent water stored in the water storage part from being deflected in a specific direction and possibly leaking.

Seventh, there is a problem that the water storage container is contaminated due to the residual water in the water storage container.

SUMMERY OF THE UTILITY MODEL

The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to provide a humidifying air purifier, which can easily open the inside of the air purifier.

Another object of the present invention is to provide a humidifying air purifier, which can easily mount and dismount a water tank mounted on a water tank and can prevent water leakage during the mounting and dismounting of the water tank.

Another object is to provide a humidifying air purifier, which a user can easily fill water into a water tank.

Another object is to provide a humidifying air purifier capable of eliminating the risk of leakage of water stored in the process of moving the water tank.

Another object is to provide a humidifying air purifier capable of detecting the water level of the water storage part to judge the water full or water short.

Another object is to provide a humidifying air purifier, which is easy to replace or manage a water tank, and a humidifying filter.

Another object is to provide a humidifying air purifier capable of preventing water leakage from a water tank and a water tank slidably provided.

Another object is to provide a water tank humidifying air purifier capable of easily removing water remaining in a water tank.

Another object is to provide a water tank humidifying air purifier capable of easily assembling a water tank, a floating device, and a water tank.

Another object is to provide a water tank humidifying air purifier which enables a floating device to be easily separated from and installed in a water tank and a sink.

Another object is to provide a water tank humidifying air purifier which allows water stored in a water tank to be easily supplied to a sink.

The utility model discloses humidification air purifier of first aspect, include:

a door assembly installed to be drawn out of or into the cabinet;

a water tank disposed in an inner space of the door assembly; and

a humidifying filter assembly inserted into the water tank;

the water tank includes:

a water tank shell which is opened upward;

a base forming a bottom surface of the sump housing;

a placement part recessed downward from the base by a first distance D1, and on which a water tank is placed; and

an extended base recessed downward from the base by a second distance D2 longer than the first distance D1, below the humidification filter assembly.

A humidified air purifier of a second aspect on the basis of the humidified air purifier of the first aspect,

the water tank further includes a partition guide member,

the partition guide is located between the placement portion and the extension base, and extends upward from the base.

A humidified air purifier of a third aspect on the basis of the humidified air purifier of the second aspect,

the water tank includes:

a floating receiving part which forms a space with the center of the installation part depressed downwards; and

and a water storage part defined by a space extending from the floating accommodation part to the extension base through the partition guide.

A humidified air purifier of a fourth aspect on the basis of the humidified air purifier of the third aspect,

the partition guide includes a first partition guide and a second partition guide extending from both side surfaces of the sump housing toward each other,

the water storage part is penetrated between the first partition guide and the second partition guide.

The humidifying air purifier of the fifth aspect further comprises, on the basis of the humidifying air purifier of the first aspect:

a floating sensor floating on the water stored in the water tank; and

a sensor detection section for detecting a position of the floating sensor.

A humidified air purifier of a sixth aspect on the basis of the humidified air purifier of the fifth aspect,

the sensor detection part is mounted on a fan cover combined with the box body.

A humidifying air purifier of a seventh aspect is based on the humidifying air purifier of the first aspect,

the water tank includes:

a seal ring groove formed in the center of the bottom surface and having a valve hole opening the bottom surface downward; and

and a valve device for opening and closing the sealing ring groove according to whether the valve device is in contact with a floating device installed below the installation part.

A humidified air purifier of an eighth aspect on the basis of the humidified air purifier of the seventh aspect,

the valve device includes:

a valve shaft forming a central axis;

a spring that winds the valve shaft; and

and a shaft sealing member coupled to the valve shaft and inserted into the seal groove.

A humidified air purifier of a ninth aspect on the basis of the humidified air purifier of the seventh aspect,

the floating device is mounted in a floating housing part, and the floating housing part forms a space below the mounting part.

A humidified air purifier of a tenth aspect on the basis of the humidified air purifier of the ninth aspect,

the floating device includes:

a floater case forming an external appearance;

a valve support part located at an upper side of the float housing, and pressing the valve device; and

and a float device which is positioned inside the float housing and floats in a space formed by the float housing part.

A humidifying air purifier of an eleventh aspect is based on the humidifying air purifier of the ninth aspect,

the floating accommodating part comprises a clamping protrusion,

the locking protrusion is formed to protrude from an inner circumferential surface of the floating accommodating portion to guide coupling or decoupling of the floating device.

A humidifying air purifier of a twelfth aspect on the basis of the humidifying air purifier of the eleventh aspect,

the float housing includes:

a locking protrusion guide formed along an outer circumferential surface of the float case in a spiral groove into which the locking protrusion is inserted,

the floating device rotates along the locking protrusion guide to be coupled to or separated from the floating receiving part.

The humidified air purifier of the thirteenth aspect on the basis of the humidified air purifier of the first aspect,

the bottom of the tank is downwardly sloped toward the center.

A humidified air purifier of a fourteenth aspect on the basis of the humidified air purifier of the first aspect,

the water tank includes shelters from the wall, should shelter from the wall and extend downwards along the periphery of the bottom surface of water tank, insert the settling section.

The utility model discloses the humidification air purifier of the fifteenth aspect, include

The front side surface of the box body is open;

the door assembly is arranged on the box body and can be led out from the front side surface of the box body;

a water tank accommodated in the door assembly and having a water storage part for storing water;

a water tank disposed on the water tank and located above the water storage part; and

a floating device installed in the water storage part and contacting with the bottom surface of the water tank,

the tank includes a valve means that opens an aperture formed in the bottom face when the float means is in contact with the valve means.

In order to achieve the above object, the embodiment of the present invention provides a humidifying air purifier, which comprises: a door assembly installed to be drawn out of or into the cabinet; a water tank disposed in an inner space of the door assembly; and a humidifying filter assembly inserted into the water tank.

Further, the water tank may include: a water tank shell which is opened upward; a base forming a bottom surface of the sump housing; a placement part recessed downward from the base by a first distance D1, and on which a water tank is placed; and an extended base recessed downward from the base by a second distance D2 longer than the first distance D1, below the humidification filter assembly.

Therefore, the water tank can be stably fixed by being inserted into the water tank. In addition, since the space for storing water and the space for installing the water tank are divided forward and backward and form a height difference, it is possible to prevent a phenomenon in which water leaks or overflows due to the sliding of the door assembly.

In addition, the water tank may further include a partition guide positioned between the seating portion and the extension base and extending upward from the base.

Therefore, the partition guide may form a wall when the door assembly is drawn out or introduced, so that water of the water storage part does not leak to the outside of the sink due to an external force.

In addition, the water tank may include: a floating receiving part which forms a space with the center of the installation part depressed downwards; and a water storage part which penetrates the partition guide from the floating accommodating part and extends to the space of the extension base.

In addition, the partition guide may include a first partition guide and a second partition guide extending from both side surfaces of the sump housing toward each other.

Further, the water storage part may penetrate between the first partition guide and the second partition guide.

In another aspect, the humidifying air purifier may further include: a floating sensor floating on the water stored in the water tank; and a sensor detecting section for detecting a position of the floating sensor.

Therefore, the water level stored in the water storage portion of the water tank can be determined. That is, the water level of the water reservoir can be detected, and control according to the water level can be performed.

In addition, the sensor detecting portion may be mounted to a fan cover coupled to the case. Therefore, since the sensor detection part is independently fixed during the drawing or drawing of the door assembly, the floating sensor can be detected in a state where the door assembly is incorporated.

In addition, the sensor detecting part may include a hall sensor.

The water tank may supply the stored water to the water storage part from an upper side of the floating accommodation part. Therefore, the water tank, and the humidifying filter assembly are drawn out or introduced by sliding, so that the humidifying filter is easily replaced and managed.

In addition, the water storage part may include: a first water storage part defined by a space formed by the floating accommodation part; and a second water reservoir communicating with the first water reservoir and defined by the extension base, the partition guide, and an inner surface of the sump housing.

Thus, the volume of the first water reservoir and the volume of the second water reservoir may be different from each other.

Further, the volume of the water storage portion increases from the first water storage portion toward the second water storage portion. Therefore, when the door assembly is drawn out, since water is directed toward the second water storage part having a large volume, the flow speed is reduced and water leakage is prevented.

In addition, the humidifying filter assembly may be inserted into the second water storage part.

In addition, the water tank may be coupled to closely contact the placement portion and the partition guide. Therefore, the water tank can be stably fixed to the water tub.

In addition, the partition guide includes a first partition guide and a second partition guide extending from both side surfaces of the sump housing to face each other, and the water storage part may pass between the first partition guide and the second partition guide. Therefore, the first water storage part and the second water storage part may be formed to communicate at the lower side of the partition guide.

In addition, the partition guide may be formed as a wall for dividing a water tank receiving space in which the water tank is disposed and a humidification filter receiving space in which the humidification filter assembly is disposed.

Further, the water tank accommodating space may be formed at a higher position than the humidification filter accommodating space. Therefore, the water level of the water tank can be stably adjusted.

In addition, the sump housing may include a cover support surface extending in width, which supports the cover of the water tank at an upper end.

Therefore, the water tank can be stably supported.

Further, the sump housing may include cut ends formed by cutting the upper ends of the front and rear ends of the sump housing, respectively, obliquely downward.

Thus, a front-end cut-out end may be provided to allow easy disassembly of the water tank. In addition, a rear-end notched end may be provided to ensure optimum suction areas of the blower fan and the humidification filter.

In addition, the sump housing may include a pressing protrusion protruding toward the water storage part to contact the humidification filter assembly.

Further, the partition guide may include a fixing protrusion protruding toward the water storage part, and the pressing protrusion and the fixing protrusion may support the humidification filter assembly in a front-rear direction.

Therefore, the humidifying filter assembly can be stably fixed in the water tank.

On the other hand, the utility model discloses humidification air purifier can include: a box body with an open front side; the door assembly is arranged on the box body and can be led out from the front side surface of the box body; a water tank accommodated in the door assembly and having a water storage part for storing water; a water tank disposed on the water tank and located above the water storage part; and a floating device installed in the water storage part and contacting with the bottom surface of the water tank.

Here, the water tank may include a valve device that opens an aperture formed in the bottom surface when the floating device is in contact with the valve device.

Therefore, the water tank can be drawn upward, and management becomes easy.

In addition, the water stored when the water tank is mounted to the sump is supplied to the water storage part, and the water can be prevented from being discharged when the water tank is separated from the sump.

On the other hand, the utility model discloses humidification air purifier can include: a hexahedral case with an opening on one surface; a door assembly coupled to the case, capable of being drawn out from an opening of the case, and including a water tank formed with a water storage part; a water tank mounted on the water tank and supplying water to the water storage part; and a humidification filter assembly mounted to the water tank and inserted into the water storage unit.

In addition, the water tank may include: a seating portion recessed to seat the water tank; a floating housing part which limits the water storage part and forms a space which is sunken downwards from the center of the mounting part; and a floating device configured to be coupled to or separated from the floating accommodation portion by rotation.

In addition, the water tank may include a valve device that opens and closes an aperture communicating with the floating device according to whether the valve device is in contact with the floating device.

Therefore, the water tank supplies water to the water storage portion only when the water tank is coupled to the water tub, and when the water tank is separated from the water tub, the valve device provided on the bottom surface of the water tank is kept in a closed state, and thus the water discharge is stopped and the airtightness is maintained.

In addition, a bottom of the water tank forming an inner space is inclined downward toward the valve device. Therefore, the residual water in the water tank can be easily discharged.

In addition, the water tank may include a blocking wall extending downward from a bottom surface of the water tank to be inserted into the seating portion of the water tank. Therefore, the water in the water storage portion can be prevented from overflowing by the blocking wall.

In addition, the water tank includes: a seal ring groove having a hole opened downward at the center of the bottom surface; and a valve hole formed by a hole communicating with the floating device, and the valve device may be configured to open and close the seal groove or the valve hole.

In addition, the water tank may further include an inflow guide extending from the packing groove to a lower side of the bottom surface.

Further, the valve device includes: the valve shaft, wind the spring of the stated valve shaft, and combine to the stated valve shaft and can insert the shaft seal of the stated seal ring groove, the stated shaft seal contacts with stated floating device and can move in the upper and lower direction. Further, the floating device may press the shaft seal upward.

Therefore, when the water tank is lifted by a user, the valve device is restored by the elastic force, so that the hole can be more easily closed. In addition, the water tank is installed to be easily separated upward from the water tub, and the valve device may be maintained in a closed state before the water tank is completely installed in the water tub, so that the water stored in the water tank is not discharged.

In addition, the floating device may include: a floater case forming an external appearance; a valve support part located at an upper side of the float housing, and pressing the valve device; and a float located inside the float case, floating in the water storage portion. Therefore, the water level in the water storage portion appropriately blocks the supply of water.

In addition, the valve supporting part may include: a pressing rib for pressing a lower portion of the valve device; and a water filling port formed at the center of the pressing rib and communicated with the inner space of the floater shell.

In addition, the valve supporting part may include: an inner rib spaced from the outer side of the pressing rib and extending in the circumferential direction around the water pouring port; an outer rib spaced from an outer side of the inner rib and extending in a circumferential direction around the water pouring port; and the rubber ring is inserted between the inner side rib and the outer side rib and is tightly attached to the bottom surface of the water tank. Thus, it is possible to provide a flat bottom of the water tank and maintain airtightness between the float device and the water tank or between the float device and the water tank, so that water leakage can be prevented.

In addition, the pressing rib may be formed with an inflow hole which communicates with the water filling port and into which water discharged from the water tank flows. Therefore, the floating device can easily guide the water stored in the water tank to the sump.

In addition, the floating receiving part may include a locking protrusion formed to protrude from an inner circumferential surface of the floating receiving part to guide coupling or decoupling of the floating device. Further, the floating device may include a latching protrusion guide formed with a spiral groove along an outer circumferential surface of the floating device, into which the latching protrusion is inserted. Therefore, the floating device can be easily coupled to or separated from the floating accommodation portion.

In addition, the floating device may be coupled to or separated from the floating receiving portion by rotating in a state where the locking protrusion is inserted into the locking protrusion guide. Therefore, the floating device can be easily separated from the water tank and the water tub.

In addition, the water tank may include: a tank body forming an inner space for storing water; and a cover for covering an upper side of the tank main body. Thus, a water tank that distinguishes filling and draining of water can be provided. In detail. A water tank body having a rectangular parallelepiped shape with an open upper side and a cover for covering the upper side of the body are provided, and a user can easily open the cover to stably fill water. Therefore, the cover can supply water in a relatively wide area in an opened state.

In addition, the tank main body may include a rotation handle rotatably provided at an upper end portion. Therefore, the user can easily draw the water tank out of the water tub.

In addition, the valve supporting part may be located in an insertion space formed at a bottom surface of the water tank. Therefore, the floating device can be prevented from leaking water.

In addition, the water stored in the water tank can flow into the seal groove and be discharged to the upper side of the floating device through the valve hole.

In addition, the water tank may be provided with a step formed from the seating portion so as to be locked to a lower end portion of the water tank. Therefore, the water tank can be further stably fixed to the water tank.

Foretell the utility model discloses humidification air purifier has following effect.

First, since the strainer and the water tank are provided on the door drawn out or drawn in the front-rear direction, the strainer and the water tank can be easily accessed when the user opens the door, so that the cleaning or replacement of the strainer and the water tank is easy.

In addition, a water tank inserted or installed in the water tank and a humidification filter unit separated from the water tank and supported to the water tank are provided, thereby effectively preventing water leakage.

In addition, since the water level of the water storage part can be detected, it is possible to judge that the water has reached a full state in which the water level has reached an appropriate level or a water-deficient state in which the water level has fallen to a minimum level, thereby providing convenience to the user.

In addition, since the float sensor is provided in the water storage portion, the water level can be easily detected.

In addition, since the water tank is seated in the water tub and can be lifted upward, the user can easily separate the water tank from the door to fill water.

In addition, since the floating device can select whether to allow the water to be discharged from the water tank according to the water level of the water tank, it is possible to prevent the water tank from overflowing.

In addition, the appropriate water level of the water tank can be maintained by the floating device.

In addition, since the floating device is easily separated from the water tank and the water tank, the cleaning performance can be improved.

In addition, since the float device is not integrally formed with the water tank, the water tank can stand on the bottom. Therefore, the usability of the water tank is improved, and management of cleaning the water tank and the like becomes easy.

In addition, since the water tank, the floating device, and the water tank are provided in separate structures, a complicated internal structure is eliminated, and thus a failure factor can be reduced.

Drawings

FIG. 1 is a perspective view showing the structure of a humidifying air purifier according to an embodiment of the present invention

FIG. 2 is a view showing a state where a door of a humidifying air purifier according to an embodiment of the present invention is opened

FIG. 3 is an exploded perspective view showing the structure of the humidifying air purifier according to the embodiment of the present invention

Fig. 4 is a sectional view taken along line VI-VI' of fig. 1.

Fig. 5 is a cross-sectional view of a humidifying air purifier according to an embodiment of the present invention.

Fig. 6 is a perspective view showing a structure of a water tank according to an embodiment of the present invention.

Fig. 7 is a cross-sectional view taken along V-V' of fig. 6.

Fig. 8 is an enlarged view of the tank main body according to the embodiment of the present invention as viewed from above.

Fig. 9 is an enlarged view of the tank main body according to the embodiment of the present invention as viewed from below.

Fig. 10 is a sectional view taken along line a-a' of fig. 8.

Fig. 11 is a perspective view showing a state in which the water tank and the floating device according to the embodiment of the present invention are coupled to each other.

Fig. 12 is a perspective view showing the structure of a water tank according to an embodiment of the present invention.

Fig. 13 and 14 are views showing the structure of the float housing according to the embodiment of the present invention.

Fig. 15 is a diagram showing a lower structure of a float case according to an embodiment of the present invention.

Fig. 16 is a sectional view taken along B-B' of fig. 13.

Fig. 17 is a diagram showing a floating device according to an embodiment of the present invention.

Fig. 18 is a sectional view taken along line C-C' of fig. 17.

Fig. 19 is an enlarged cross-sectional view showing an opened state of the floating device according to the embodiment of the present invention.

Fig. 20 is an enlarged cross-sectional view showing a closed state of the floating device according to the embodiment of the present invention.

Fig. 21 is a diagram showing a state in which a water tank is coupled to a water tank according to an embodiment of the present invention.

Fig. 22 is a diagram showing a structure of a floating sensor according to an embodiment of the present invention.

Detailed Description

In the following, some embodiments of the invention are explained in detail by means of exemplary drawings. Note that, when reference numerals are given to components in each drawing, the same components are denoted by the same reference numerals as much as possible in different drawings. In describing the embodiments of the present invention, detailed descriptions of related well-known structures and functions are omitted when it is determined that the detailed descriptions of the related well-known structures and functions do not interfere with understanding of the embodiments of the present invention.

In describing the components of the embodiments of the present invention, terms such as first, second, A, B, (a), (b), and the like may be used. The above terms are only used to distinguish the components from other components, and the nature, order, sequence, and the like of the corresponding components are not limited by the above terms. When it is stated that a certain component is "connected", "coupled" or "connected" to another component, it is to be understood that the component may be directly connected or coupled to the other component, and another component may be "connected", "coupled" or "coupled" between the components.

Fig. 1 is a perspective view showing a structure of a humidifying air purifier according to an embodiment of the present invention, fig. 2 is a view showing a state where a door of the humidifying air purifier according to an embodiment of the present invention is opened, fig. 3 is an exploded perspective view showing a structure of the humidifying air purifier according to an embodiment of the present invention, and fig. 4 is a sectional view taken along line VI-VI' of fig. 1.

Referring to fig. 1 to 4, a humidifying air purifier 10 according to an embodiment of the present invention includes a case 100 forming an external appearance, and a door assembly 200 drawably coupled to the case 100.

The case 100 includes a plurality of plates.

In detail, the plurality of plates includes: a lower plate 101; two side panels 103 provided on both sides of the lower panel 101 and extending upward; an upper panel 105 coupled to the upper sides of the two side panels 103; and a rear panel 107 coupled to the rear side of the two side panels 103.

The box 100 may have a rectangular parallelepiped shape with an open front side formed by the lower plate 101, the two side plates 103, the upper plate 105, and the rear plate 107.

The plurality of panels may be made of wood. Therefore, the humidifying air purifier 10 may bring the beauty of furniture in appearance. I.e., the appearance is beautiful.

In particular, the upper side panel 105 may provide a function of being used as furniture such as a table, a desk, a bookcase, and the like. For example, the humidifying air purifier 10 may have a height of less than one meter (1m) to improve the utilization rate of the upper panel 105.

Accordingly, the upper side panel 105 can be used as a table, a desk, a bookcase, etc., and also, when a user lies on a bed, can discharge humidified and purified air at a position similar to the height of the user, and thus, has an advantage of being able to create a more comfortable indoor environment centering on the user.

The air filter assembly 280, the humidification filter assembly 300, the blower fan 480, and the like may be disposed in the inner space of the case 100. The air filter assembly 280 and the humidification filter assembly 300 may be collectively referred to as a "filter assembly".

The door assembly 200 may be configured to be drawn out to the front of the cabinet 100 to open the cabinet, or drawn in to the rear to close the cabinet. The door assembly 200 includes a door panel 210 constituting a front side portion of the humidifying air purifier 10. The door panel 210 may be referred to as a "front panel".

The door panel 210 may have a rectangular plate shape. Further, the door assembly 200 is in a closed state, and the door panel 210 forms an external appearance of a front side portion of the humidifying air purifier 10. The door panel 210 is made of wood, and thus, can feel the aesthetic sense of furniture.

A recessed space 30 is formed between the lower end of the door panel 210 and the lower plate 101. In addition, an air suction port 225 is formed at an upper side of the depressed space 30 to suck air into the case 100.

A discharge portion 109 is formed on the upper panel 105 of the casing 100, and filtered and humidified air is discharged from the discharge portion. The discharge portion 109 may be located on the rear side of the upper panel 105. That is, the discharge unit 109 may be located at the rear upper portion of the humidified air purifier 10.

The door assembly 200 further includes a drawer 220(drawer) extending rearward from the rear side of the door panel 210.

The drawer 220 is provided with the components of the humidifying air purifier 10. The components may include an air filter assembly 280, a humidification filter assembly 300, a water tank 260, and a water tank 270.

When the door assembly 200 is drawn out in the front to open the front side of the case 100, the air filter assembly 280, the humidifying filter assembly 300, and the water tank 270 provided in the drawer 220 can be drawn out in the front together. Accordingly, the air filter assembly 280, the humidification filter assembly 300, and the water tank 270 are easily accessible to a user.

The drawer 220 is combined with the cabinet 100 to be able to be drawn out of or into the cabinet. Accordingly, the drawer 220 may be referred to as a "door" or a "receiving portion".

The door assembly 200 further includes a guide rail guide 230 for guiding the drawing out or in of the door assembly 200. The rail guides 230 may be coupled to both sides of the lower portion of the drawer 220, respectively.

The door assembly 200 can be drawn out of or into the cabinet 100 by the sliding movement of the rail guide 230. That is, the door assembly 200 may be provided in a drawer type to facilitate management of a plurality of components provided in the drawer 220.

On the other hand, the humidifying air purifier 10 includes: an air filter assembly 280 for filtering air, a humidifying filter assembly 300 for humidifying air, and a blowing fan 480 for generating air flow.

In detail, the case 100 includes a main body frame 110 forming a space portion 112 for disposing components of the air cleaner.

The main body frame 110 may be formed in a hexahedral shape with front, rear, and upper sides open. In detail, the front side of the body frame 110 is open, and the open front side may be shielded by the door assembly 200. In addition, the rear side of the main body frame 110 is opened, and the opened rear side may be shielded by the fan cover 410 and the case cover 430. In addition, the upper side of the main body frame 110 is opened, and the opened upper side may be shielded by the electrical installation part 450.

The two side panels 103 are coupled to both sides of the main body frame 110.

The upper panel 105 is coupled to the upper side of the electrical component 450, and the rear panel 107 may be coupled to the rear side of the housing cover 430.

The door assembly 200 includes a door panel 210 forming a front side appearance and a drawer 220 extending rearward of the door panel 210.

The drawer 220 includes a door front 221 combined with a rear of the door panel 210. The door panel 210 and the door front side 221 may be collectively referred to as a "door front side".

The drawer 220 includes: door side surfaces 222 extending rearward from both sides of the door front side surface 221; a door bottom surface disposed at a lower side of the door side surface 222; and a door rear side surface extending upward from a rear side of the door bottom surface.

The door bottom surface may be formed with the above-described air suction opening 225.

Inside the drawer 220, an installation space, in which a water tank 260, a water tank 270, an air filter assembly 280, and a humidification filter assembly 300 are installed, may be defined by the door front side 221, the door bottom, the door side 222, and the door rear side.

An air filter assembly 280 may be mounted at the front of the drawer 220. The air filter assembly 280 may include an air filter case 281 and an air filter 285 coupled to the air filter case 281. The air filter assembly 280 may be configured to be separated by lifting upward.

A water tank 270 may be provided at a substantially central portion of the drawer 220, i.e., at a rear side of the air filter assembly 280, with respect to the front-rear direction. The water tank 270 may be installed inside the water tank 260.

The water tank 270 may be provided to be separated by being lifted upward, and a user can fill water or clean the water tank 270 by separating the water tank 270.

The water tank 260 may have a polyhedral shape with an open upper portion.

The sink 260 includes a sink housing 261 for receiving the water tank 270.

The sump housing 261 may be internally formed with a flat surface on which the water tank 270 is seated.

The water tank 260 further includes a floating receiving portion 262 protruding downward from the water tank case 261 and having a space in which the floating device 500 is installed.

The floating receiving portion 262 has a hollow shape having a hollow inside, and may be located at a substantially central portion of the sump case 261, for example.

The floating accommodation portion 262 forms a first water storage portion 262a for storing water, and the floating device 500 may be provided to be movable in an up and down direction according to a change in a water level stored in the first water storage portion 262 a.

When the water level of first water storage portion 262a reaches a predetermined level or higher, floating device 500 moves upward, and water can be prevented from flowing from water tank 270.

A second water storage part 229 extending rearward from the floating accommodation part 262 and storing water may be formed inside the water tank 260. The second water storage part 229 is communicated with the first water storage part 262a, and can form the same water level as the first water storage part 262 a.

The second water storage part 229 may be formed at the rear side of the sump housing 261. Further, a humidifying filter assembly 300 may be inserted into the second water storage part 229.

The first water storage part 262a and the second water storage part 229 may be formed to have a volume that increases from the first water storage part 262a toward the second water storage part 229.

A rear portion of the drawer 220, i.e., a rear side of the water tank 270, may be provided with a humidifying filter assembly 300.

In more detail, the humidifying filter assembly 300 may be inserted into the water tank 260. Further, the humidifying filter assembly 300 may be disposed such that a lower portion thereof is submerged in the second water storage part 229.

The humidification filter assembly 300 includes: a humidifying filter housing 310; a humidification filter unit 320 rotatably supported to the humidification filter case 310; and a humidifying filter 330 installed at the humidifying filter unit 320 to absorb the water stored in the water tank 260.

The humidification filter unit 320 may be disposed such that the center thereof is aligned with the center of the blower fan 480. Therefore, the suction area where the blower fan 480 and the humidification filter 330 overlap in the flow direction of the air can be maximized. Therefore, the air passing through the humidification filter 330 can flow into the blower fan 480 with a minimum flow loss.

The humidifying filter assembly 300 further includes a collecting part for scooping up the water stored in the second water storage part 229 of the water tank 260. While the humidification filter 330 mounted to the humidification filter unit 320 is rotated, the water scooped up by the collection unit moves upward, and when the water is lowered downward again, the water may flow into the humidification filter 330.

The humidifying air purifier 10 further includes, as a driving device for rotating the humidifying filter 330: a humidification filter motor 353, and a humidification filter driving gear 355 which is combined with the humidification filter motor 353 and rotates.

The humidification filter motor 353 and the humidification filter driving gear 355 may be provided on a front side surface of the fan housing 410.

In detail, the humidification filter motor 353 and the humidification filter driving gear 355 may be positioned between a front side surface of the fan housing 410 and a rear side surface of the humidification filter case 310.

The humidification filter motor 353 may be coupled to the front side surface of the fan housing 410 to be positioned outside the fan suction port 415. For example, the humidification filter motor 353 may be mounted to a bracket coupled to the upper portion of the fan housing 410, and the bracket may protrude forward from the upper portion of the fan housing.

The humidification filter drive gear 355 is located in front of the humidification filter motor 353. Further, the humidification filter driving gear 355 may be connected to the humidification filter unit 210.

The humidification filter assembly 300 includes a filter gear that is in linkage with the humidification filter drive gear 355.

The filter gear is disposed behind the humidification filter 330, and may be coupled to gear teeth (gear-teeth) of the humidification filter driving gear 355. For example, the filter gear may be coupled to an outer surface of the humidification filter unit 320. Accordingly, the humidification filter unit 320 and the humidification filter 330 may rotate as the filter gear 338 rotates.

In addition, the humidification filter 330, the humidification filter unit 320, and the collection part may be referred to as a humidification water wheel. The humidifying waterwheel may have a substantially circular shape.

The humidification water cart may be rotated by the power of the humidification filter motor 353.

The humidifying filter 330 may be made of cloth, felt, or sponge material that is easy to absorb water.

A sterilization device 269, which irradiates light toward the inside of the water tank 260 to sterilize the water stored in the water tank 260, may be provided at the rear side of the water tank 260. For example, the sterilization device 269 may include an ultraviolet LED.

In addition, an irradiation opening 263a formed to irradiate light from the sterilizing device 269 into the inside of the water tank 260 may be formed at the rear side of the water tank 260.

The humidifying air purifier 10 further includes a housing assembly 400 disposed inside the case 100. The housing assembly 400 includes: an air blowing fan 480 generating air flow, a fan cover 410 disposed in front of the air blowing fan 480, and a case cover 430 coupled to a rear side of the fan cover 410.

The housing assembly 400 may be disposed at the rear side of the door assembly 200.

The blowing fan 480 may be installed in a fan installation space defined by the fan housing 410 and the case cover 430.

The blower fan 480 includes a centrifugal fan that axially sucks in air and radially discharges the air. As an example, the centrifugal fan may comprise a sirocco fan. The axial direction of the blower fan 480 may be the same as the front-rear direction of the case 100.

The fan housing 410 includes a fan intake 415. The fan suction port 415 may include suction guide ribs extending in a radial or circumferential shape. The suction guide rib prevents a user's hand from being inserted into the blower fan 480.

The humidifying air purifier 10 also includes an electrical component 450 having a plurality of electrical components 453.

The electrical component part 450 further includes an electrical board 451 for covering an upper side surface of the opening in the main body frame 110. The electrical installation plate 451 may be formed integrally with the fan housing 410. For example, the electrical board 451 may extend forward from the upper end of the fan case 410.

The electrical component 453 may be mounted on an upper side of the electrical installation plate 451. The electrical part 450 may further include an electrical cover 455 for shielding at least a portion of the plurality of electrical components 453.

The electrical installation plate 451 may extend forward from an upper portion of the housing assembly 400.

The upper panel 105 may be coupled to an upper side of the electrical board 451 to protect the electrical component 453.

The main body frame 110 may be provided at the inside thereof with a slide rail (not shown). The slide rail may be coupled with the rail guide 230 to be movable in the front-rear direction. For example, the slide rail may be provided in pair with the rail guide.

The slide rails may be disposed at both sides of the lower portion of the main body frame 110. The rail guide 230 provided to the door assembly 200 may slide back and forth along the slide rail.

The slide rail and the rail guide 230 may be referred to as a rail assembly. The guide rail assembly can guide the door assembly 200 to be drawn out or introduced from the open face of the cabinet 100.

The lower portion of the main body frame 110 further includes a lighting bracket (not shown) on which a lighting device (not shown) is mounted. The illumination brackets may be disposed to be spaced apart from each other on the upper side of the lower plate 101 of the housing 100.

The lighting device includes a lighting PCB122 having a lighting source, and a lighting housing 124 coupled to the lighting PCB 122. The illumination source may be plural.

The front upper side of the lower plate 101 may be mounted with a reflection plate 120. The reflection plate 120 can softly reflect or diffuse the light irradiated from the illumination source.

Schematically illustrates the air flow in a humidified air purifier according to an embodiment of the present invention.

When the fan motor 485 and the blower fan 480 connected to the fan motor 485 are driven, the air outside the humidifying air purifier flows in from the air suction port 225 via the concave space 30. The air sucked through the air suction port 225 flows upward and flows into the drawer 220.

In addition, the air passes through the air filter assembly 280. The air filter assembly 280 may be disposed to be inclined forward in a state of being seated in the air filter seating portion 226, and thus, air may uniformly pass through a front side surface of the air filter 285 disposed in the air filter assembly 280.

The air filtered in the air filter assembly 280 flows backward and can pass through the humidifying filter assembly 300. The air is humidified while passing through the humidification filter assembly 300, and the humidified air passes through the supply fan 480.

The air filter assembly 280, the water tub 260, and the humidifying filter assembly 300 may be arranged in sequence from the front of the drawer 220 toward the rear. Therefore, the filtering and humidification of the air can be easily achieved.

On the other hand, the air sucked in the axial direction of the rotation center of the blower fan 480 can be discharged in the radial direction. The air passing through the blower fan 480 flows upward and is discharged to the outside through the discharge portion 109.

Fig. 5 is a cross-sectional view of a humidifying air purifier according to an embodiment of the present invention. The embodiment of the present invention described above is referred to as a first embodiment, and the other embodiment shown in fig. 5 is referred to as a second embodiment.

The second embodiment is an embodiment in which the water tank 260 'and the water tank 270' are modified in the structure of the first embodiment. Therefore, the description of the first embodiment described above will be referred to for the structure of the second embodiment which is repeated from the structure of the first embodiment.

Referring to fig. 5, a water tank 270' for storing water may be positioned at the front upper side of the humidifying filter assembly 300. As an example, the water tank 270' may be located at a position closer to the upper side than the humidifying filter 330.

In addition, a tank bracket 900 for supporting the water tank 270' may be provided at an upper side of the door assembly 200. As an example, the door assembly 200 may form two sidewalls corresponding to two sides of the main body frame 110. The tank bracket 900 may extend from the two sidewalls for the water tank 270' to be mounted.

The water tank 270 'may be connected to a water supply pipe 610 extending to the water storage portion 262a of the water tank 260' through the water tank holder 900.

The water inside the water tank 270' may flow into the water storage part 262a through the water supply pipe 610. Further, a valve device may be provided in the water supply pipe 610. In this case, the floating device 500 disclosed in the first embodiment may be replaced with the valve device.

The water supply pipe 610 may be provided to be coupled to an inner side surface of the main body frame 110. Therefore, interference with the flow of air passing through the humidification filter assembly 300 can be prevented.

In addition, the suction area of the air passing through the air filter 285 and flowing into the humidification filter 330 can be enlarged to the maximum.

Next, the detailed configuration of the humidifying air purifier 10 will be described with reference to the first embodiment described above.

Fig. 6 is a perspective view showing the structure of a water tank according to an embodiment of the present invention, and fig. 7 is a sectional view taken along line V-V' of fig. 6.

Referring to fig. 6 and 7, the water tank 270 may include a tank body 271 for storing water in an inner space 274, and a cover 207 detachably mounted to an upper end of the tank body 271.

The tank body 271 may be formed in a rectangular parallelepiped shape with an open upper side. For example, the tank body 271 may be arranged such that the long side is arranged in the front-rear direction and the short side is arranged in the both-side direction.

The cover 207 may shield the upper side of the opened tank main body 271. As an example, the cover 207 may be formed in a rectangular shape to cover an upper side of the tank body 271.

The cover 207 may be seated on an upper end of the tank body 271. Further, the cover 207 may be provided with a rubber packing at a portion contacting with the upper end of the tank body 271.

The lid 207 is located in the center and includes a lid handle 208 that the user can hold.

The cover handle 208 protrudes upward from the upper side of the cover 207, and can be easily held by a user. Therefore, the user can easily separate the cover 207 from the tank body 271 by pulling the cover handle 208.

Accordingly, the inner space 274 is filled with water by opening the upper side of the tank body 272.

In addition, the cover 207 may be formed such that a central portion of the cover handle 208 is depressed downward. Therefore, when the user's hand holds the cover handle 208, it can be easily inserted into the center portion of the recess.

Further, the cover 207 may be formed with a plurality of air pressure holes 208a so that the stored water can be discharged downward in a state where the cover is coupled to the tank body 271.

The plurality of air pressure holes 208a may be formed as through holes penetrating the center portion of the recess. Therefore, when the tank body 271 is coupled with the cover 207 and mounted to the water tank 260, the water stored in the water tank 270 can be discharged to the floating device 500 and the first water storage portion 262a located therebelow by using the atmospheric pressure provided from the air pressure hole 208 a.

The tank body 271 may include a rotating handle 271a rotatably mounted at an upper end.

The rotating handle 271a may be provided to allow a user to easily grip and operate the tank body 271. For example, the rotating knob 271a may be formed to insert a rotating shaft at both sides of the upper end portion of the tank body 271 and to extend along the upper end portion of the tank body 271

The shape is extended.

Further, when the user does not need to hold the rotating handle 271a, the rotating handle may be disposed at an upper end of the tank body 271.

The tank body 271 is formed with an inner space 274 for storing water.

Further, a lower side surface of the tank body 271 defining the inner space 274 is inclined downward toward the center.

That is, the bottom surface 272 of the tank body 271, which forms the inner space 274 for storing water, may be inclined downward toward the hole for discharging water. Here, the hole may be formed in a seal ring groove 272c described later.

That is, the bottom surface 272 may slope downwardly toward the valve device 276. Additionally, the aperture or the valve device 276 may be located in the center or center of the bottom surface 272.

The bottom surface or bottom surface 272 of the tank body 271 may be referred to as an inclined surface 272.

The inclined surface may be formed as a hole for allowing the entire water of the inner space 274 to flow into the center portion. Therefore, since the water tank 270 does not generate residual water, there are advantages in that contamination is prevented and management is easy.

For convenience of explanation, the inclined surface 272 or the bottom surface of the tank body 271 may be defined by an inner surface portion 272a as one surface forming the inner space 274 and a bottom surface portion 272b as the other surface facing the water tank 260.

That is, the tank main body 272 includes: an inner surface portion 272a for defining a bottom face of the inner space 274; and a bottom surface 272b, which is a surface opposite to the inner surface 272a, for defining an outer surface of the tank main body 272.

Further, the inner surface portion 272a may be formed of a surface inclined downward toward the center. The inner surface portion 272a may store water. In addition, the water tank 260 may contact the bottom surface portion 272b to support the water tank 270.

The tank body 271 may further include: a seating groove 273 for recessing a lower portion of the outer surface to be stepped; and a blocking wall 275 extending downward from the bottom surface 272 b.

The seating groove 273 may be formed along the edge formed by the outer circumferential surface of the tank body 271 and the bottom surface portion 272 b. For example, the seating groove 273 may be formed in an arc shape upward from an upper outer end of the shielding wall 275.

Further, the seating groove 273 may be formed in a shape to be fitted with a fixing guide 264b and a seating portion 264a of the water tub 260, which will be described later, together with the blocking wall 275.

For example, the fixing guide 264b and the seating portion 264a may be formed as one

In the' shape, the seating groove 273 and the shielding wall 275 may be formedAnd (4) shape. Thus, the seating groove 273 may be provided to be in a form-fit with the water tank 260.

As a result, the placement groove 273 can stably fix the water tank 270 by closely contacting the water tank 270 with the water tank 260.

In other words, the water tank 270 may be coupled to the water tank 260 by closely contacting the seating portion 264a of the water tank to the partition guides 268a and 268 b.

The blocking wall 275 may be positioned at the bottom surface of the tank main body 271. When the water tank 270 is seated on the seating portion 264a of the water tank 260, the blocking wall 275 may extend and contact the fixing guide 264 b.

In detail, the shielding wall 275 may extend along the outer circumference of the bottom surface portion 272 b. The blocking wall 275 may extend vertically downward from the bottom portion 272 b. For example, the blocking wall 275 may extend downward from a position spaced inward by a predetermined distance from the outer periphery of the bottom surface 272b to form the seating groove 273.

Further, a space 275e into which the floating device 500 is inserted may be formed between the blocking wall 275 and an inflow guide 275a described later.

Since the blocking wall 275 is closely attached to the fixing guide 264b of the water tank 260, water can be prevented from leaking to the outside from the water tank 270 and the water storage part of the water tank 260 when the water tank 270 is combined with the water tank 260.

As described above, the tank body 271 may be formed with a hole for discharging the water stored at the bottom surface. Further, the tank main body 271 may further include a valve device 276 opening and closing the hole.

Fig. 8 is an enlarged view of a tank main body according to an embodiment of the present invention as viewed from above, fig. 9 is an enlarged view of a tank main body according to an embodiment of the present invention as viewed from below, and fig. 10 is a sectional view taken along line a-a' of fig. 8.

Referring to fig. 8 to 10, the water tank 270 may further include a valve device 276 provided to open and close a sealing ring groove 272c provided at a central portion of the tank main body 271.

The packing groove 272c may be formed at the center of the inner surface portion 272a to form a hole for discharging water.

The valve device 276 may be coupled to the seal ring groove 272c in a vertically movable manner. Thus, the water stored in the interior space 274 can be drained or stored by the action of the valve device 276. That is, the valve device 276 may guide the water stored in the inner space 274 to be discharged downward.

The valve device 276 may include a valve shaft 277 forming a central axis, and a shaft seal 278 (see fig. 7) inserted by the valve shaft 277. A detailed description of the structure of the valve device 276 will be described later.

The tank body 271 may further include: a sealing seating portion 277a positioned at the center of the sealing ring groove 272 c; a valve hole 272d as an opening between the seal groove 272c and the seal seating portion 277a, through which water passes; and an inflow guide 275a extending below the bottom surface 272b along the seal groove 272 c.

The seal groove 272c may be formed by a hole opened downward from the center of the inner surface portion 272 a. Further, the seal ring groove 272c may be opened or closed (sealed) by the movement of the valve device 276. For example, the seal groove 272c may be sealed by fitting to an outer peripheral surface of a shaft seal 278 of the valve device 276.

When the packing groove 272c is closed, the water stored in the inner space 274 cannot be discharged downward and the water storage state can be maintained.

The sealing seating portion 277a may be located at a central portion of the sealing ring groove 272 c. Further, the seal seating portion 277a may be supported by an extension portion extending toward the center from any portion of the sealing ring groove 272 c.

The valve device 276 may be inserted into or through the sealing seating portion 277 a. Accordingly, the seal seating portion 277a may guide the up and down movement of the valve device 276.

In detail, the seal seating portion 277a may have a hole formed at the center so that the valve shaft 277 of the valve device 276 penetrates the hole. For example, the seal seating portion 277a may be formed in a ring shape at a central portion of the seal groove 272 c. Here, the center hole of the seal seating portion 277a may be understood as a center of the seal ring groove 272 c.

The seal seating portion 277a may contact a bottom surface of the shaft seal 278. For example, when the user lifts up the water tank 270, the shaft seal 278 coupled to the valve shaft 277 moves downward.

The bottom surface of the shaft seal 278 that moves downward may be in contact with the upper surface of the seal seating portion 277a to fix and support the shaft seal 278. Accordingly, the seal seating portion 277a may guide the up and down movement of the valve device 276.

The seal seating portion 277a may function to support the shaft seal 278. As a result, the outer peripheral surface of the shaft seal 278 can be stably fitted into the seal groove 272c, so that more water stored in the internal space 274 can be prevented from being discharged.

The valve hole 272d may be understood as a hole that communicates the inner space 274 of the water tank 270 with the outside of the bottom surface portion 272 b.

That is, the valve hole 272d may be formed in the seal ring groove 272 c.

The valve hole 272d may be disposed between the sealing ring groove 272c and the sealing seating portion 277a such that the water stored in the inner space 274 of the water tank 270 can be discharged to the outside of the water tank 270. For example, a plurality of extending portions supporting the seal seating portion 277a may be formed toward the center of the seal ring groove 272c, and in this case, a valve hole 272d opened in the vertical direction between the extending portions is formed.

Therefore, the water flowing into the inside of the packing groove 272c from the inner space 274 of the water tank 270 may be discharged downward through the valve hole 272 d.

In addition, the valve hole 272d may be located below the seal seating portion 277 a. Accordingly, the valve hole 272d may be understood as being selectively opened and closed by the up and down movement of the valve device 276.

The inflow guide 275a may be formed to extend downward from the sealing ring groove 272 c. In addition, the inflow guide 275a may be positioned below the valve hole 272 d.

The inflow guide 275a may extend downward along the outer circumference of the lower end of the packing groove 272 c. As an example, the inflow guide 275a may be formed in a cylindrical shape whose lower portion is opened. That is, the packing groove 272c and the inflow guide 275a may be integrally formed.

The inflow guide 275a may be spaced apart from the outside of the valve device 276. That is, the inflow guides 275a may be spaced apart in the radial direction of the valve device 276.

The space between the inflow guide 275a and the valve device 276 may be defined as an inflow path 600. The inflow path 600 may be understood as a flow path through which water is discharged downward through the valve hole 272d and flows into the floating device 500.

In addition, a float insertion space 275e may be formed between the inflow guide 275a and the blocking wall 275.

That is, the float insertion space 275e may be formed in a radial direction of the outer side of the inflow guide 275 a. Further, the float insertion space 275e may be defined by a space recessed upward between the blocking wall 275 and the inflow guide 275 a.

The valve supporting part 530 of the floating device 500 is inserted into the floating device insertion space 275 e. Accordingly, stable coupling of the device coupling portion 275 and the floating device 500 can be achieved.

When the float device 500 is seated in the float device insertion space 275e, the valve device 276 is moved upward by the pressing force of the float device 500, thereby opening the seal groove 272c and the valve hole 272 d.

When the float device 500 is separated from the float device insertion space 275e, the valve device 276 moves downward to close the seal groove 272c and the valve hole 272 d.

That is, when the water tank 270 is placed in the water tank 260, the valve device 276 of the water tank 270 is opened by the pressing of the floating device 500, so that the water stored in the water tank 270 can flow into the water storage portions 262a, 229 of the water tank 260.

The valve device 276 includes: a valve shaft 277, a shaft seal 278 coupled to the valve shaft 277, and a spring 279.

The valve shaft 277 may include: a lower end portion having a diameter larger than an inner diameter of the seal seating portion 277 a; and a shaft portion extending upward from the center of the lower end portion and penetrating through the center hole of the seal seating portion 277 a.

The lower end portion of the valve shaft 277 may be pressed upward by a pressing rib 535 of the float device 500. Therefore, the valve shaft 277 may be moved upward.

The lower end portion of the valve shaft 277 may be formed in a disk shape. The shaft portion of the valve shaft 277 may be formed in a cylindrical shape extending upward from the center of the lower end portion.

The valve shaft 277 may be formed with a seal shaft 277b incorporating the shaft seal 278. Further, the seal shaft 277b may be formed at a shaft portion of the valve shaft 277.

The seal shaft 277b may be formed to have an outer diameter smaller than that of the shaft portion of the valve shaft 277. Accordingly, the shaft seal 278 may be pressed in the up and down direction by the valve shaft 277 by the center thereof being inserted by the seal shaft 277b, thereby being stably fixed.

The shaft seal 278 is fitted into the inner circumferential surface of the seal groove 272c, so that water of the water tank 270 can be prevented from flowing into the space inside the seal groove 272 c. Further, when the valve shaft 277 moves upward, the shaft seal 278 moves upward from the seal groove 272c, so that the water stored in the water tank 270 can be allowed to flow into the inflow path 600.

The shaft seal 278 may be formed to have a larger diameter toward the upper portion such that the sealing ring groove 272c may be closed (sealed) when the bottom surface of the shaft seal is seated on the sealing seating portion 277 a. As an example, the shaft seal 278 may be formed in a truncated cone shape.

Further, the shaft seal 278 is capable of forming a seal (sealing) when fitted into the seal ring groove 272 c. For example, the shaft seal 278 may be made of a rubber material.

The spring 279 may be coupled between a bottom surface of the seal seating portion 277a and an upper surface of a lower end portion of the valve shaft 277 in a manner of winding an outer surface of a shaft portion of the valve shaft 277.

The spring 279 is pressed by the floating device 500 and is compressed when the valve device 276 moves upward, thereby providing an elastic force when the valve device 276 moves in a returning manner. Therefore, when the water tank 270 is separated from the water tank 260, the valve device 276 is quickly and easily returned to the lower side by the spring 279, thereby sealing the sealing ring groove 272c and/or the valve hole 272 d.

Fig. 11 is a perspective view showing a state in which a water tank and a floating device according to an embodiment of the present invention are coupled, and fig. 12 is a perspective view showing a structure of the water tank according to the embodiment of the present invention.

Referring to fig. 11 and 12, the sump 260 further includes a sump housing 261 forming an external appearance and a base 264 forming a bottom surface.

The base 264 may form a bottom surface of the sump shell 261.

In other words, the sump housing 261 may be formed to extend upward along the outer circumference of the base 264.

The sump housing 261 may be formed with a cover supporting surface 261a, a locking portion 261b, a cut end 261c, and a pressing protrusion 261 d.

The cover supporting surface 261a may be symmetrically formed at both side upper ends of the sump housing 261. In detail, the cover supporting surface 261a may extend laterally to have a predetermined width in which the cover 207 of the water tank can be seated.

The cover supporting surface 261a may extend in a length corresponding to the water tank receiving space 260a in which the water tank 270 is disposed. As an example, the cover support surfaces 261a may extend from both upper ends of the sump case 261 to positions intersecting with extension lines drawn along the partition guides 268a, 268 b.

There is an advantage in that the cover 271 coupled to the upper side of the water tank 270 is stably fixed by the cover supporting surface 261 a.

The locking part 261b may be formed at a rear side of the cover supporting surface 261. In addition, the locking parts 261b may be symmetrically formed at both side upper ends of the sump housing 261.

In detail, the locking portion 261b may be formed to be recessed downward from a rear end of the cover supporting surface 261 a.

Further, the locking part 261b may be formed to seat the humidification filter case 310. Since the humidification filter case 310 is disposed in the locking portion 261b, the lowermost end portion of the humidification filter case 310 is spaced upward from the extension base 268. Therefore, there is an advantage in that the flow of water between the first water storage part 262a and the second water storage parts 229, 260b is easily achieved.

The locking portion 261b has the following advantages: guiding the humidification filter assembly 300 to be easily inserted into the second water storage part 229 and stably fixing the humidification filter assembly 300.

The notched end 261c may be formed at the front and rear ends of the sump housing 261, respectively. A notch end 261c formed at the front end of the sump housing 261 is referred to as a front notch end, and a notch end formed at the rear end of the sump housing 261 is referred to as a rear notch end.

The rear slit end may be formed at the rear end of the sump housing 261 to secure a flow cross-sectional area of air discharged from the humidifying filter 330.

The rear cut end may be formed by being cut downward such that the rear upper end of the sump case 261 corresponds to the lower shape of the humidification filter 330. For example, the rear notched end 261c may extend downward in an arc shape from both sides of the rear upper end of the sump housing 261.

As an example, the rear notched end 261c may be located at a position closer to the lower side than the lowermost end of the humidification filter 330 in the front-rear direction. Therefore, interference with the flow of air passing through the humidification filter 330 can be prevented.

The front slit end may be formed symmetrically with the rear slit end.

The pressing projection 261d may be formed to protrude forward from the rear inner surface of the sump housing 261. In detail, the pressing projection 261d may be formed to protrude forward below the rear notched end 261c along the extending direction of the rear notched end 261 c.

The humidification filter assembly 300 provided in such a manner as to be submerged in the second water storage part 229 has an advantage of being stably fixed by the pressing protrusion 261d pressed at the rear.

In addition, the humidifying filter assembly 300 can be stably fixed to the second water storage part 229 by the pressing protrusion 261d located at the rear and the fixing protrusions 268c and 268d located at the front.

The water tank 260 further includes a seating portion 264a for supporting the water tank 270.

The seating portion 264a may be formed to be recessed downward from the base 264 by a predetermined first distance D1. Further, the seating portion 264a forms a flat surface.

The water tank 260 further includes a fixing guide 264b extending downward from the base 264 and connected to the seating portion 264 a.

That is, the fixing guide 264b may be defined by the seating portion 264a and a step of the base 264. In addition, a vertical surface of the fixing guide 264b extends to connect the base 264 and the placing portion 264 a.

The edge formed by the base 264 and the fixing guide 264b and the edge formed by the fixing guide 264b and the seating portion 264a may have an arc shape.

Accordingly, a fixed position of the water tank 270 placed on the water tank 260 can be easily guided, thereby having an advantage of improving user convenience.

The water tank 260 further includes an extended base 268 forming a second water storage portion 229 at the rear of the seating portion 264a where the water tank 270 is seated.

The extension base 268 may be formed to be recessed downward from the base 264 by a predetermined second distance D2.

Further, the extension base 268 forms a flat face.

The humidifying filter assembly 300 may be located on an upper side of the extension base 268. That is, the humidifying filter assembly 300 may be located above the extended base 268. Accordingly, the humidification filter assembly 300 may be disposed in the second water reservoir 229 having a bottom surface defined by the extension base 268.

Further, the humidifying filter assembly 300 may be disposed such that a portion thereof is submerged in the water of the second water storage part 229. Therefore, the humidifying filter 330 can absorb water.

The second distance D2 may be set greater than the first distance D1. Therefore, the extension base 268 is located at a position lower than the seating portion 264a, so that a space for storing water can be formed.

Therefore, the water stored in the water tank 270 can flow into the first water storage portion 262 located at a lower position than the seating portion 264a through the opening portion of the floating accommodation portion 262, and the water flowing into the first water storage portion 262a can easily flow into the second water storage portion 229.

The water tank 260 includes partition guides 268a, 268b for dividing the water tank accommodating space 260a and the humidification filter accommodating space 260 b.

The partition guides 268a, 268b may be located between the placement portion 264a and the extension base 268. Therefore, the first water storage portion 262a and the second water storage portion 229 can communicate through the partition guides 268a, 268 b.

The partition guides 268a, 268b prevent water in the water reservoirs 262a, 229 from overflowing or leaking from the sink 260 during introduction or withdrawal of the door assembly 200.

Further, since the water tank case 261 extends higher than the partition guides 268a and 268b, even if the water stored in the water tank 270 or the water storage portions 262a and 229 instantly overflows the partition guides 268a and 268b, the water can flow into the water storage portions 262a and 229 again.

In addition, since the partition guides 268a and 268b are disposed to be in close contact with the side surfaces of the water tank 270, when the water tank 270 is coupled to the water tank 260, the height of a wall for preventing leakage of water stored in the water storage portions 262a and 229 can be further increased. Therefore, there is an advantage in that water leakage can be prevented during the drawing out or in of the door assembly 200.

The partition guides 268a, 268b may extend from both side surfaces of the sump housing 261 in directions toward each other. That is, the partition guides 268a, 268b may be located between the placement portion 264a and the extension base 268. For example, the partition guides 268a and 268b extend from the base 264 to be parallel to the long side of the water tank 260 with a predetermined width between the placement portion 264a and the extension base 268.

The partition guides 268a, 268b may be formed as walls for dividing the water tank receiving space 260a in which the water tank 270 is disposed and the humidification filter receiving space 260b in which the humidification filter assembly 300 is disposed.

That is, the partition guides 268a and 268b and the blocking wall 275 of the water tank described above may be formed as walls that do not leak the water supplied from the water tank or the water stored in the water storage part.

The water tank accommodating space 260a may be formed at a higher position than the humidification filter accommodating space 260 b.

The fixed guide 264b is connected to the front end of the partition guides 268a and 268b, and one surface extending perpendicularly from the extension base 268 is connected to the rear end of the partition guides 268a and 268 b.

In addition, the height of the step formed by the partition guides 268a and 268b and the seating portion 264a is the first distance D1, and the height of the step formed by the partition guides 268a and 268b and the extension base 268 is the second distance D2.

Accordingly, the seating portion 264a may be higher than the extension base 268 by a difference between the second distance and the first distance (d2-d 1).

The floating receiving portion 262 may extend downward from the seating portion 264a by a difference between the second distance and the first distance (d2-d1) to form a first water storage portion 262 a.

As a result, the tank housing space 260a can be formed at a higher position than the humidification filter housing space 260 b.

Therefore, the water tank 270 provided in the water tank receiving space 260a can supply water to the first water storage portion 262a located below by gravity, and thus has an advantage in that water flowing into the first water storage portion 262a easily flows into the second water storage portions 229 and 260 b.

Further, since the bottom surface of the first water storage portion 262a is located at the same height as the bottom surfaces of the second water storage portions 229 and 260b, there is an advantage in that the flow of water is facilitated and the same low water level is provided in the water storage portions. Therefore, the determination of whether or not there is insufficient water (water shortage) can be performed accurately by the float sensor 700, which will be described later, provided in the second water storage portion 229.

As described above, the partition guides 268a, 268b may extend from both side surfaces of the sump housing 261 in directions facing each other. Further, the partition guides 268a, 268b may be provided separately to communicate the first water storage portion 262a with the second water storage portion 229.

That is, the partition guides 268a, 268b include a first partition guide 268a and a second partition guide 268 b. The first and second partition guides 268a and 268b may extend to face each other.

The first partition guide 268a may be spaced apart from the second partition guide 268b to form a spaced space therebetween. The space may be understood as the second water storage part 229 extending rearward from the floating accommodation part 262. Accordingly, the first water storage part 262a and the second water storage part 229 may communicate with each other.

The partition guides 268a, 268b include fixing protrusions 268c, 268d for supporting the front side portion of the humidification filter case 310.

The fixing projections 268c, 268d may be formed to project rearward from rear end surfaces of the partition guides 268a, 268 b.

The fixing projections 268c, 268d include: a first fixing projection 268c formed to project rearward from a rear end surface of the first partition guide 268 a; and a second fixing projection 268d formed to project rearward from a rear end surface of the second partition guide 268 b.

Therefore, the humidification filter unit 300 inserted into the humidification filter storage space 260b can be pressed forward and fixed. Therefore, there is an advantage in that the humidification filter assembly 300 can be stably supported.

Since the extension base 268 is located at a position lower than the seating portion 264a, the sump case 261 may further include an extension case 263 extending downward along the extension base 268.

An irradiation opening 263a communicating with the second water storage part 229 and a sterilizing device mounting part 263b to which a sterilizing device 269 is mounted outside the irradiation opening 263a may be formed at a rear side surface portion of the extension case 263.

The sterilizing device mounting part 263b may be formed with a plurality of fastening holes. The sterilization device 269 is coupled to the sterilization device mounting portion 263b through the fastening hole.

The sterilization device 269 may be provided to shield the irradiation opening 263 a. Therefore, water can be prevented from leaking to the irradiation opening 263 a.

The irradiation opening 263a may be formed as an opening communicating with the second water storage part 229 toward the inside of the sterilizing device mounting part 263b,

the irradiation opening 263a may guide light irradiated from the sterilization device 269 to be supplied to the second water storage part 229, thereby performing sterilization.

On the other hand, the cover supporting surface 261a, the fixing guide 264b and the seating portion 264a may be referred to as a tank supporting portion since they stably support the water tank 270.

The locking portion 261b, the fixing projections 268c, 268d, and the pressing projection 261d may be referred to as a humidification filter support portion since they stably support the humidification filter assembly 300.

On the other hand, the floating receiving portion 262 may be formed at the center of the tank supporting portion as a space for installing the floating device 500. For example, the floating receiving portion 262 may be formed by depressing a central portion of the tank supporting portion downward, and may have a hollow shape with a hollow interior.

As described above, the floating accommodation portion 262 may form the first water storage portion 262a for storing water. In addition, the floating device 500 may move in the up and down direction according to the change of the water level stored in the first water storage part 262 a.

The water tank 260 may be formed with a second water storage portion 229 extending rearward from the floating accommodation portion 262 to store water. The second water storage part 229 communicates with the first water storage part 262a and may form the same water level as the first water storage part 262 a.

The water tank 260 further includes locking projections 265 and 266 located in the floating receiving portion 262.

The locking protrusions 265 and 266 serve to easily and stably couple the floating device 260 to the floating receiving portion 262.

The locking protrusions 265 and 266 may be formed to protrude from the inner circumferential surface of the floating receiving portion 262. For example, the locking projections 265 and 266 may have a rectangular parallelepiped shape, projecting in the central axial direction of the floating accommodation portion 262. Further, a plurality of the locking projections 265 and 266 may be provided.

The latching projections 265, 266 include a first latching projection 265 and a second latching projection 266.

The first catching protrusion 265 and the second catching protrusion 266 may be disposed to be spaced apart from each other. Further, the first and second locking projections 265 and 266 may have the same shape, forming rotational symmetry.

The first locking protrusion 265 may include an upper protrusion 265a and a lower protrusion 265b provided below the upper protrusion 265a with a predetermined interval.

The upper boss 265a may be formed to have a width corresponding to an inner width of a locking boss guide 511 described later. That is, the upper protrusion 265a may be formed as a space into which a recess formed by the locking protrusion guide 511 is inserted.

The lower protrusions 265b may be located below the upper protrusions 265 a. For example, the lower protrusion 265b may be formed at a position close to the bottom surface of the floating receiving portion 262.

In addition, the upper protrusions 265a may be formed smaller than the lower protrusions 265 b. As an example, the length of the upper projection 265a in the vertical direction may be smaller than the length of the lower projection 265b in the vertical direction.

Therefore, the float device 500 can be inserted into the float receiving portion 262 while rotating in a state where the upper boss 265a is inserted along the locking boss guide 511 formed by spirally recessing the outer circumferential surface of the float device 500. When the insertion of the floating device 500 is completed, the lower protrusions 265b formed larger than the upper protrusions 265a are not inserted into the locking protrusion guides 511, and locking is formed at the outer ends of the locking protrusion guides 511, so that the rotation of the floating device 500 can be restricted.

Therefore, the floating device 500 can be stably fixed in the floating accommodation portion 262.

The second latching protrusion 266 may include an upper protrusion 266a and a lower protrusion 266b, like the first latching protrusion 265. The description of the first latching projection 265 can be cited with respect to the description of the upper projection 266a and the lower projection 266b of the second latching projection 266.

That is, the floating unit 500 is provided to be detachable from the water tank 260. Therefore, there is an advantage in that a user easily separates the floating unit 500 and the water tank 260 for management for cleaning.

In addition, the floating device 500 is provided as a structure separable from the water tank 270, so that the bottom surface of the water tank 270 may be flat. Therefore, there is a standing use when using or managing the water tank 270.

Fig. 13 and 14 are views showing the structure of the float housing according to the embodiment of the present invention. Fig. 15 is a view showing a lower structure of a float case according to an embodiment of the present invention, fig. 16 is a sectional view taken along line B-B 'of fig. 13, fig. 17 is a view showing a floating device according to an embodiment of the present invention, and fig. 18 is a sectional view taken along line C-C' of fig. 17.

The structure of the floating device 500 is explained in detail with reference to fig. 13 to 18.

The floating device 500 includes: a float case 510 forming an external appearance, a valve support part 530 located at an upper side of the float case 510, and a float 550 floating on water inside the float case 510.

First, referring to fig. 13 to 16, the float housing 510 includes a water filling port 620 formed through an upper side surface in a central axial direction.

The filling port 620 may be formed at the center of the upper side of the float housing 510. Therefore, the water flowing downward through the inflow path 600 can flow into the water filling port 620 and flow into the first water storage portion 262 a.

That is, the filling port 620 may guide water discharged from the water tank 270 to the first water storage 262 a. Further, the first water storage portion 262a and the inflow path 600 may communicate through the water filling port 620.

The fill port 620 may be opened and closed by a float 550, described below. For example, when the water level of the first water storage portion 262a is in a full state, a water filling port plug 555 of a float 550 is inserted into the water filling port 620, thereby preventing water of the water tank 270 from further flowing into the water filling port 620. That is, the water filling port 620 may be closed by the water filling port plug 555.

On the other hand, the valve supporting part 530 may support the valve device 276. The valve supporting part 530 may be located at an upper center portion of the floater case 510.

That is, the valve support 530 may be provided in a radial direction with reference to a central axis passing through the water filling port 620.

The valve supporting part 530 includes a pressing rib 535 pressing a lower side of the valve shaft 277.

The pressing rib 535 may be provided to be spaced apart from the watering opening 620 in a radial direction. Here, the radial direction may be determined with reference to a virtual central axis passing through the water filling port 620.

Further, the pressing rib 535 may be formed to extend upward from the upper side of the float housing 510. That is, the pressing rib 535 may be formed to protrude upward at a position spaced apart from the water pouring port 620 by a predetermined distance in the radial direction.

When the valve shaft 277 is disposed at the upper end of the pressing rib 535, the pressing rib 535 presses the lower side of the valve shaft 277 upward, thereby moving the valve device 276 upward.

The pressing rib 535 may be provided in plurality. As an example, the pressing ribs 535 may include a first pressing rib 535a and a second pressing rib 535 b.

The first pressing rib 535a and the second pressing rib 535b may be disposed to be spaced apart from each other. As an example, the first pressure rib 535a may extend at an angle of 20 ° to 160 ° from the center of the water-pouring port 620, and the second pressure rib 535b may extend at an angle of 200 ° to 340 ° from the center of the water-pouring port 620.

The first and second pressing ribs 535a and 535b may extend toward each other in a track direction of points located at the same distance centering on the emitter 620.

Here, the track direction of points located at the same distance with the irrigation opening 620 as the center is defined as a circumferential direction.

Further, the first pressing rib 535a and the second pressing rib 535b are provided apart from each other in the circumferential direction.

That is, an inflow hole 610 for guiding water flowing through the inflow path 600 to flow into the watering opening 620 may be formed on the pressing rib 535. As an example, the inflow hole 610 may be defined by a space formed between the first and second pressing ribs 535a and 535b,

the valve supporting part 530 further includes an outer side rib 531, an inner side rib 532, and a reinforcing rib 533 inserted into the floating device insertion space 275e to be in contact with the bottom surface part 272 b.

The outer rib 531, the inner rib 532, and the reinforcing rib 533 may be disposed to be inserted into the floating device insertion space 275e when the water tank 270 is mounted to the sink 260.

The inner rib 532 may be radially spaced apart from the pressing rib 535. That is, the inner rib 532 may be formed in a cylindrical shape that is opened in the up-down direction.

The inner rib 532 may have an inner diameter formed larger than an outer diameter of the inflow guide 275 a. Further, a space formed between the outer side of the pressing rib 535 and the inner side of the inner rib 532 may be defined as an inflow guide insertion space 538.

That is, when the water tank 270 is mounted to the water tank 260, the inflow guide 275a may be inserted into the inflow guide insertion space 538. Therefore, the water flowing into the inflow path 600 through the seal groove 272c and the valve hole 272d, which are pressed upward by the pressing rib 535 to be opened, can flow into the watering port 620 through the inflow hole 610.

The outer rib 531 may be located outside the inner rib 532. In detail, the outer rib 531 may be radially spaced apart from the inner rib 532. Further, the inner diameter of the outer rib 531 may be formed to be larger than the outer diameter of the inner rib 532.

The outer rib 531 is radially spaced from the inner rib 532 to form a cylindrical shape that is open in the up-down direction.

The reinforcing rib 533 may be located in a space between the outer rib 531 and the inner rib 532. In addition, the reinforcing rib 533 may radially extend in the spaced space to connect the outer rib 531 and the inner rib 532. As an example, the reinforcing rib 533 may have a plurality.

In addition, the valve supporting part 530 further includes a rubber ring 520 for sealing a space between the outer rib 531 and the inner rib 532 (refer to fig. 19).

The rubber ring (520) may be installed along the upper end surface of the plurality of reinforcing ribs 533. Further, the space between the outer rib 531 and the inner rib 532 may be defined as a rubber ring installation space 534.

When the water tank 270 is mounted to the water tank 260, the rubber ring 534 may be closely attached to the bottom surface of the recess in the device coupling portion 275. Therefore, leakage of water can be prevented by the rubber ring 534, and water can be prevented from flowing into the rubber ring installation space 534 by sealing the rubber ring installation space 534.

On the other hand, the float housing 510 further includes a float guide 517 for guiding the movement of the float 550.

The float guide 517 may be formed to extend downward from an upper side of the float case 510.

That is, the float guide 517 is located inside the upper side surface of the float case 510, and the pressing rib 535 may be located in the opposite direction of the float guide 517, i.e., outside the upper side surface of the float case 510.

Further, the float guides 517 may be radially spaced with reference to a central axis of an imaginary line passing through the emitter 620.

The slider guide 517 may be plural. As an example, the float guide 517 may include a first float guide 517a and a second float guide 517 b.

The first and second slider guides 517a and 517b may be disposed to be spaced apart from each other. As an example, the first float guide 517a may extend from 20 ° to 160 ° around the water-pouring port 620, and the second float guide 517b may extend from 200 ° to 340 ° around the water-pouring port 620.

The first and second float guides 517a and 517b may extend toward each other along a track direction of points located at the same distance centering on the water injection port 620.

Here, the track direction of points located at the same distance with the irrigation opening 620 as the center is defined as a circumferential direction.

Further, the first slider guide 517a and the second slider guide 517b may be disposed apart from each other in the circumferential direction.

That is, the float guide 517 may be formed with an outflow hole 630 for guiding water flowing in through the water filling port 620 to flow to the first water storage portion 262 a. As an example, the outflow hole 630 may be defined as a space formed between the first and second float guides 517a and 517 b.

On the other hand, the inner diameter of the float guide 517 may be formed larger than the inner diameter of the pressing rib 535.

The fill port plug 555 of the float 550 may be disposed toward the space inside the float guide 517. Further, the float guide 517 may be inserted into a float guide insertion space 557 of a float 550 described later. At this time, the water filling port plug 555 is vertically movable inside the float guide 517 according to the water level of the first water storage portion 262 a.

The float guide 517 may guide the inlet stopper 555 to stably move up and down in correspondence with the inlet 620. As a result, the float guide 517 can guide the movement of the float 550 floating in the first water storage portion 262 a.

The floater case 510 may be formed in a cylindrical shape having an open lower side as a whole. In addition, the side surface of the float case 510 is formed such that a portion thereof is opened.

That is, the floater case 510 may include a water storage opening 515 formed by cutting a portion of a side surface thereof.

The water storage opening 515 may provide a flow path such that water flowing into the first water reservoir 262a through the water filling port 620 flows to the second water reservoir 229. Further, the first water storage portion 262a and the second water storage portion 229 can be communicated through the water storage opening 515.

The float housing 510 is accommodated in the float accommodating portion 262, and is opened at a bottom surface thereof and is opened at a portion of an outer circumferential surface thereof, so as to communicate with the second water storage portion 229. Therefore, the first water storage part 262a may be understood as being formed in the inner space of the float case 510.

The float housing 510 further includes a fixing rib 518 that guides the float 550 floating according to the water level of the first water storage part 262a at an outer side.

When the water level of the first water storage part 262a becomes low to incline the float 550, the fixing rib 518 may contact with the outer side surface of the float 550 to prevent the emitter plug 555 positioned inside the float guide 517 from being detached.

The fixing rib 518 may be formed to protrude inward from an inner circumferential surface of the floater case 510. In addition, the fixing rib 518 may extend in the up-down direction.

The fixing rib 518 may be provided in plurality. For example, the fixing ribs 518 are spaced apart from each other by 90 ° with respect to the center of the float housing 510.

In addition, the float housing 510 further includes a latching protrusion guide 511 into which the latching protrusions 265 and 266 are inserted.

The catching protrusion guide 511 may be located at an outer side surface of the floater case 510. In addition, the catching protrusion guide 511 may guide the floating device 500 to be easily mounted to or separated from the water tank 260.

The locking protrusion guide 511 may be formed to correspond to the locking protrusions 265 and 266 of the water tank 260. In detail, the locking protrusion guide 511 may be formed as a groove spirally extending along the outer circumferential surface of the float case 510.

On the other hand, if the case of installing the floating device 500 is described as an example, the locking protrusion guide 511 may include: a locking protrusion limiting groove 511a, in which the locking protrusions 265 and 266 move with the rotation of the floating device 500 to form the final locking; and a locking protrusion moving groove 511b to which the locking protrusions 265 and 266 are guided when they are first inserted.

The locking protrusion limiting groove 511a may be understood as forming an end point of the extending direction of the locking protrusion guide 511 locked by the locking protrusions 265 and 266. In addition, the locking protrusion limiting groove 511a may be understood as a distal end position of the locking protrusion moving groove 511 b. Therefore, the locking projections 265 and 266 can be inserted and moved by being guided by the locking projection moving groove 511b, and finally, the locking projection restricting groove 511a is locked, so that the stop can be performed.

In the groove extending in the spiral shape, the locking projections 265 and 266 may be inserted so as to move in the extending direction. For example, the locking protrusion guide 511 may be formed as a spiral groove extending upward in a counterclockwise direction. At this time, the user may rotate the floating device 500 in a counterclockwise direction in order to install the floating device 500.

Here, a direction in which a user rotates for mounting the floating device 500 may be defined as a mounting rotation direction S.

The installation process of the floating device 500 is explained as follows: first, the user may place the floating device 500 such that a portion thereof is inserted into the floating receptacle 262. Then, the user can rotate the floating device in the installation rotation direction S of the floating accommodation portion 262.

At this time, the locking projections 265 and 266 may be inserted into the locking projection guide 511. Further, the latching protrusions 265 and 266 may allow the floating device 500 to rotate in a state where the latching protrusion guide 511 is inserted.

In more detail, the locking protrusions 265 and 266 may be moved in opposite positions along a spiral extending direction of the locking protrusion guide 511 by rotation of the floating device 500. That is, the latching protrusions 265, 266 allow the floating device 500 to rotate along the extending direction of the latching protrusion guide 511 to leave an imaginary trajectory.

Accordingly, the users each easily mount the floating device 500 to the floating accommodation part 262. Further, the floating device 500 that has completed the final rotation has an advantage that it is stably fixed to the floating accommodation portion 262 by the locking protrusions 265 and 266.

The float 550 may be disposed in an inner space of the float case 510.

Referring to fig. 17 and 18, the float 550 may be made of a material capable of floating on water. Further, the slider 550 may be formed in a disk shape as a whole.

The float 550 includes a fill port plug 555 that can be inserted into the fill port 620 to open and close the fill port 620.

The filling port plug 555 may be formed in a shape corresponding to the filling port 620. The water inlet plug 555 is inserted into the water inlet 620 or separated downward according to the water level of the first water storage portion 262 a. For example, the water filling port plug 555 may be inserted into the water filling port 620 when the water level of the first water storage portion 262a reaches a full water state.

In addition, the float 550 may have a float guide insertion space 557 formed by being depressed downward from an upper side portion of the float 550, into which the float guide 517 is inserted.

The float guide insertion space 557 may be recessed corresponding to the shape of the float guide 517. For example, the float guide insertion spaces 557 are provided at radially spaced intervals with respect to the center axis of the float 550, and grooves having a predetermined width are formed to extend in the circumferential direction.

In addition, the float guide insertion space 557 may be formed to communicate in the up-down direction. Therefore, the water flowing into the float guide insertion space 557 is discharged downward and can flow into the first water storage portion 262 a.

As a result, since the float guide 517 is inserted into the float guide insertion space 557 and the filling port plug 555 is inserted into the space inside the float guide 517, the filling port plug 555 can be inserted into the filling port 620 more stably as the water level of the first water storage portion 262a increases.

Fig. 19 is an enlarged sectional view showing an opened state of a floating device according to an embodiment of the present invention, and fig. 20 is an enlarged sectional view showing a closed state of the floating device according to the embodiment of the present invention.

Referring to fig. 19 and 20, a process of flowing water stored in the tank inner space 274 to the water storage parts 262a and 229 of the water tank 260 when the water tank 270 is mounted to the water tank 260 will be described in detail.

As described above, the valve device 276 may perform opening and closing actions by the water tank 270 being placed in the seating portion 264 a.

In detail, when the water tank 270 is seated in the seating portion 264a, the pressing rib 535 of the float device 500 installed in the float receiving portion 262 may press the lower end of the valve shaft 277 upward.

Since the valve shaft 277 is moved upward by the pressing of the pressing rib 535, the shaft seal 278 coupled to the valve shaft 277 is also moved upward. At this time, the seal groove 272c and the valve hole 272d sealed by the movement of the shaft seal 278 are opened. Therefore, the water stored in the water tank 270 may flow into the inner space of the packing groove 272c and be discharged to the lower side of the valve hole 272 d.

The water passing through the valve hole 272d moves downward along an inflow path 600 formed inside the inflow guide 275 a. In addition, the water moving along the inflow path 600 may flow into the inside of the floating device 500 through the inflow hole 610.

In detail, the water flowing in through the inflow hole 610 flows downward through the watering port 620. The water passing through the filling port 620 flows to the outflow hole 630 and the float guide insertion space 557 to flow into the communicating first water storage portion 262 a.

The water flowing into the first water storage portion 262a flows to the second water storage portion 229 to which the humidification filter assembly 300 is attached, and the water levels of the first water storage portion 262a and the second water storage portion 229 can be gradually increased.

In fig. 19, the water level of the water storage portions 262a and 229 is assumed to be the minimum water level L, and in fig. 20, the water level of the water storage portions 262a and 229 is assumed to be the maximum water level H.

On the other hand, through the above-described flow path, the water in the water tank 270 is supplied to the water storage portions 262a, 229, and the water levels of the water storage portions 262a, 229 are gradually raised so as to be able to reach the maximum water level H.

As the water level of the water storage portions 262a and 229 rises, the position of the float 550 can also rise upward along with the float guide 517. Further, when the water level reaches the highest water level H, the filling-port plug 555 at the uppermost end of the float 550 can be inserted into the filling port 620 to be clamped.

When the fill port plug 555 is inserted into the fill port 620, the fill port 620 closes. That is, water flowing into the inflow hole 610 is blocked. Therefore, water cannot be supplied to the water storage portions 262a, 229.

On the other hand, when the water level drops due to the water stored in the water storage portions 262a and 229 being used or evaporated, the float 550 moves downward, and thus the water filling port 620 is opened again, so that the water can be supplied to the water storage portions 262a and 229. Therefore, there is an advantage in that the stored water in the water tank 270 is stably and easily provided to the water storage parts 262a, 229 without user intervention.

Fig. 21 is a diagram showing a state in which a water tank is coupled to a water tank according to an embodiment of the present invention, and fig. 22 is a diagram showing a floating sensor structure according to an embodiment of the present invention.

Referring to fig. 21 and 22, the humidifying air purifier 10 may further include: a float sensor 700 for detecting the water level of the water storage portions 262a, 229 in the water tank 260; and a sensor detecting part 710 for detecting the position of the floating sensor 700.

The float sensor 700 may be located in the water reservoir 262a, 229 of the water tank 260. In addition, the floating sensor 700 may float on the water stored in the water storage portions 262a, 229 according to buoyancy. As an example, the floating sensor 700 may be provided to float in the second water storage part 229.

The sensor detecting part 710 may be located outside the water tub 260. For example, the sensor detecting part 710 may be installed at a lower portion of the fan cover 410.

Accordingly, the sensor detecting part 710 can detect the position of the floating sensor 700 floating in the water storage part of the water tank 260 when the door assembly 200 is introduced into the cabinet 10.

The sensor detecting part 710 may include a hall sensor. Therefore, the sensor detecting part 710 detects the magnetic force of the magnet provided in the floating sensor 700, thereby being able to detect the position.

Therefore, the sensor detecting part 710 may determine whether the water level of the second water storage part 229 reaches the lowest point or whether the water is insufficient.

Specifically, when the water level of the second water storage part 229 reaches the lowest point, the floating sensor 700 floating in the second water storage part 229 is lowered to the lowest point and may be seated on the extension base 268. At this time, the sensor detecting part 710 may detect the floating sensor 700 and provide a detection signal.

Further, a control portion (not shown) of the humidifying air purifier may receive the detection signal and judge that the water storage portions 262a, 229 are deficient in water. In addition, the control part may control a display (not shown) to display a water shortage state.

The water tank 260 may further include a floating sensor catching protrusion 720 and a floating sensor guide 730 for guiding the floating sensor 700 to float.

The floating sensor latching protrusion 720 may be formed to protrude from the inner surface of the water tank case 261 toward the second water storage part 229. The floating sensor locking protrusion 720 may be formed to protrude toward the second water storage part 229 at a predetermined height position.

Therefore, when the water level of the second water storage part 229 is highest, the floating sensor 700 can maintain the position of the second water storage part 229 without being separated by the floating sensor latching protrusion 720 even when the drawing-in or drawing-out of the door assembly 200 is performed.

The floating sensor guide 730 may be formed to extend upward from the extension base 268 at one side of the second water storage part 229.

The floating sensor guide 730 may guide the floating sensor 700 to be raised or lowered at a predetermined position of the second water storage part 229 so that the sensor detecting part 710 accurately detects the floating sensor 700.

Accordingly, the floating sensor 700 may be raised or lowered within the detection range of the sensor detection part 710 by the floating sensor guide 730 as the water level is changed.

Referring to fig. 22, the floating sensor 700 may include: a magnet 701; a float 702 formed to be able to float on water; and a float housing 703 covering the float body 702.

The magnet 701 may be inserted into a magnet receiving portion 702a, which is a groove formed at one side of the floating body 702. In addition, the magnet 701 may be coupled to the inner side of the float housing 703.

The magnet 701 may include a ferrite (ferrite) magnet. Accordingly, the sensor detecting part 710 can detect the position of the floating sensor 700 by detecting the magnetic force of the magnet 701.

The float 702 is formed to float on water. As an example, the floating body 702 may be made of Expanded Polystyrene (EPS).

In addition, the float 702 may comprise polystyrene.

The float housing 703 may be formed to receive the float body 702 at an upper side. For example, the float housing 703 may be formed to cover an upper side of the float body 702.

The float housing 703 may comprise plastic (Acrylonitrile Butadiene Styrene, ABS).

The float housing 703 includes a float fixing protrusion 703a for fixing the float 702 disposed inside the float housing.

The floating body fixing protrusions 703a may be located at both lateral sides of the floating body housing 703. The floating body fixing protrusion 703a may extend inward through the inner surface of the float housing 703. Thus, the floating body fixing protrusions 703a can fix the outer side of the floating body 702.

Claims (15)

1. A humidifying air purifier, comprising:

a door assembly installed to be drawn out of or into the cabinet;

a water tank disposed in an inner space of the door assembly; and

a humidifying filter assembly inserted into the water tank;

the water tank includes:

a water tank shell which is opened upward;

a base forming a bottom surface of the sump housing;

a placement part recessed downward from the base by a first distance (D1) and having a water tank placed therein; and

an extended base recessed downward from the base by a second distance (D2) longer than the first distance (D1) below the humidification filter assembly.

2. The humidified air purifier of claim 1,

the water tank further includes a partition guide member,

the partition guide is located between the placement portion and the extension base, and extends upward from the base.

3. The humidified air purifier of claim 2,

the water tank includes:

a floating receiving part which forms a space with the center of the installation part depressed downwards; and

and a water storage part defined by a space extending from the floating accommodation part to the extension base through the partition guide.

4. The humidified air purifier of claim 3,

the partition guide includes a first partition guide and a second partition guide extending from both side surfaces of the sump housing toward each other,

the water storage part is penetrated between the first partition guide and the second partition guide.

5. The humidified air purifier of claim 1, further comprising:

a floating sensor floating on the water stored in the water tank; and

a sensor detection section for detecting a position of the floating sensor.

6. The humidified air purifier of claim 5,

the sensor detection part is mounted on a fan cover combined with the box body.

7. The humidified air purifier of claim 1,

the water tank includes:

a seal ring groove formed in the center of the bottom surface and having a valve hole opening the bottom surface downward; and

and a valve device for opening and closing the sealing ring groove according to whether the valve device is in contact with a floating device installed below the installation part.

8. The humidified air purifier of claim 7,

the valve device includes:

a valve shaft forming a central axis;

a spring that winds the valve shaft; and

and a shaft sealing member coupled to the valve shaft and inserted into the seal groove.

9. The humidified air purifier of claim 7,

the floating device is mounted in a floating housing part, and the floating housing part forms a space below the mounting part.

10. The humidified air purifier of claim 9,

the floating device includes:

a floater case forming an external appearance;

a valve support part located at an upper side of the float housing, and pressing the valve device; and

and a float device which is positioned inside the float housing and floats in a space formed by the float housing part.

11. The humidified air purifier of claim 9,

the floating accommodating part comprises a clamping protrusion,

the locking protrusion is formed to protrude from an inner circumferential surface of the floating accommodating portion to guide coupling or decoupling of the floating device.

12. The humidified air purifier of claim 10,

the float housing includes:

a locking protrusion guide formed along an outer circumferential surface of the float case in a spiral groove into which the locking protrusion is inserted,

the floating device rotates along the locking protrusion guide to be coupled to or separated from the floating receiving part.

13. The humidified air purifier of claim 1,

the bottom of the tank is downwardly sloped toward the center.

14. The humidified air purifier of claim 1,

the water tank includes shelters from the wall, should shelter from the wall and extend downwards along the periphery of the bottom surface of water tank, insert the settling section.

15. A humidifying air purifier is characterized by comprising

The front side surface of the box body is open;

the door assembly is arranged on the box body and can be led out from the front side surface of the box body;

a water tank accommodated in the door assembly and having a water storage part for storing water;

a water tank disposed on the water tank and located above the water storage part; and

a floating device installed in the water storage part and contacting with the bottom surface of the water tank,

the tank includes a valve means that opens an aperture formed in the bottom face when the float means is in contact with the valve means.

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