KR20190059598A - Air cleaning apparatus and control method thereof - Google Patents

Abstract

The present invention relates to an air cleaning apparatus and a control method therefor. The air cleaning apparatus according to an exemplary embodiment of the present invention comprises: a first blower; a second blower provided on an upper portion of the first blower; a flow switching device provided movably on an upper portion of the second blower; a battery for supplying power to at least one of the first blower, the second blower and the flow switching device; and a controller for driving at least one of the first blower, the second blower, and the flow switching device by using the power of the battery. The battery includes: a relay unit for opening/closing input or output current of the battery; and a current sensing unit for measuring the current value inputted into or outputted from the battery. When the current value measured by the current sensing unit does not correspond to a normal range, the relay unit disconnects the current of the battery. Thus, a fan lock state is detected relatively simply and quickly by using the current value of the battery.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an air cleaner,

The present invention relates to an air purifier and a control method thereof.

Generally, an air cleaner is understood as a device which sucks and cleans contaminated air, and then discharges the purified air. For example, the air cleaner may include a blower for introducing outside air into the inside of the air cleaner, and a filter for filtering dust, bacteria, and the like in the air.

The air purifier is configured to purify an indoor space such as a home or an office. The air cleaner includes a fan for forced convection of the room air and a discharge port through which the air having passed through the filter is discharged by the fan.

At this time, the fan is installed to be exposed to the outside by the discharge port for blowing efficiency or the like. Accordingly, when a foreign substance or the like is introduced into the discharge port, a fan lock state in which the fan can not be normally driven may occur.

In such a case, there is a possibility that various devices such as the fan or the fan motor for driving the fan may be damaged, and the air required by the user can not be provided in the fan lock state. Accordingly, in order to detect such a fan lock state and take measures accordingly, the present applicant has filed the following prior art documents.

Prior Art Document: Japanese Patent Application Laid-Open No. 10-2007-0019196, Method for Detecting Fan Rock of Air Conditioner

According to the prior art, the minimum voltage is input to the fan motor, and it is detected whether the minimum voltage is rotated by the minimum voltage to determine the fan lock state. This is a method for detecting the fan lock state in advance at the initial stage of the air cleaner.

However, in general, the fan lock state is generated when the air cleaner is continuously driven, so that there is a problem in that it is practically insufficient to judge only at the initial stage of starting.

Further, when the fan lock state occurs when the air cleaner is driven, the fan motor determines that the electric power is insufficient and can continuously increase the electric power. Accordingly, there is a problem that the fan motor may be damaged and the fan may be damaged.

In particular, when the fan is driven by the power of the battery, the power stored in the battery may be abruptly reduced. As a result, there is a problem that the drivable time is shortened and the lifetime of the battery is shortened.

An object of the present invention is to provide an air cleaner and a control method thereof for determining a fan lock state more quickly and taking measures corresponding thereto in order to solve the above problems.

In particular, it is possible to provide an air cleaner for determining a fan lock state through a power value of the battery when the battery is driven by electric power, and a control method thereof.

Also, it is possible to provide an air purifier for judging whether a device driven through the power of the battery operates normally through the power value of the battery, whether the battery is normally operated or connected, and a control method thereof.

The air cleaner according to the present embodiment is provided with a first fan unit, a second fan unit installed above the first fan unit, a flow switching device movably provided on the upper portion of the second fan unit, A battery that supplies electric power to at least one of the first blower, the second blower, and the flow switching device, and a second blower that drives at least one of the first blower, the second blower, .

The battery includes a relay for opening and closing an input or an output current of the battery, and a current sensing unit for measuring a current value input or output from the battery. When the current measured by the current sensing unit is within a normal range If not, the relay unit cuts off the current of the battery.

In addition, a first fan provided in the first fan unit and driven by a first fan motor, a second fan provided in the second fan unit, driven by a second fan motor, And a third fan driven by a third fan motor, wherein a change amount of the battery output current value when at least one of the first fan, the second fan, and the third fan is driven by the power of the battery The control unit determines that at least one of the first fan, the second fan, and the third fan to be driven is in a fan lock state, and the relay unit cuts off the current of the battery .

The first fan unit may include a first fan unit and a second fan unit. The fan unit may include a first fan unit, a second fan unit, and a second fan unit. Wherein when the amount of change in the battery output current value is equal to or greater than a predetermined value when the third fan is driven by the power of the battery, And the relay unit may cut off the current of the battery output to the third fan motor.

The flow switching device may further include a first gear which is provided for the first direction movement of the fluid switching device and is driven by the first gear motor and a second gear which is different from the first direction of the flow switching device, And when the amount of change in the battery output current value is equal to or greater than a predetermined value when the flow switching device is moved by the electric power of the battery, It is determined that the flow switching device is in a fixed state, and the relay part can cut off the current of the battery output to the first gear motor or the second gear motor.

According to another aspect of the present invention, there is provided a control method for an air cleaner having a battery and a plurality of devices driven by the power of the battery, the air cleaner being turned on, , A power value output from the battery is measured, a device of the plurality of devices is driven by the battery, and if the measured power value is a normal value, Range (normal range), and cuts off the power of the battery when the measured power value is not included in the normal range.

In particular, when the third fan is driven by the battery, the power of the battery output to the third fan can be cut off if the measured amount of change in the power value is equal to or greater than a predetermined value.

In addition, when the flow switching device is moved by the battery, power of the battery output to the flow switching device can be cut off if the measured amount of change in the power value is equal to or greater than a predetermined value.

According to the present embodiment, there is an advantage that the battery and other devices can be protected by detecting the fan lock state relatively easily and quickly using the current value of the battery.

Particularly, since the risk of fan lock of the fan provided in the upper flow switching device is greatest, the power output to the fan can be cut off when the current value of the battery is abnormal. Accordingly, there is an advantage that air can be cleaned by driving another fan even in the fan lock state.

Further, it is possible to determine whether a device driven using the current value of the battery is normally operated.

Further, it is possible to determine whether the battery is normally operated or normally connected to another device by using the current value of the battery.

In addition, when connected to an external power source, an external power source is used, and the battery can be effectively used only when the battery is disconnected from the external power source.

In addition, the battery can be charged when the external power source is connected, and it is possible to determine whether charging of the battery is normally performed through the amount of current of the battery.

In addition, a number of blowers and flow diversion devices are provided, which has the advantage that the blowing capacity of the air purifier can be improved.

In addition, since the filter member is provided in a cylindrical shape, the air can be introduced into the interior of the filter member in all directions outside the filter member, so that the suction area can be increased and thus the air cleaning ability of the filter can be improved .

1 is a view showing an appearance of an air cleaner according to an embodiment of the present invention.
2 is a view showing an internal configuration of an air cleaner according to an embodiment of the present invention.
3 is a cross-sectional view taken along line I-I 'of FIG.
FIG. 4 is an exploded view of the configuration of a second fan unit according to an embodiment of the present invention.
5 is a view showing a second discharge guide device, a third air guide device and a flow switching device according to an embodiment of the present invention.
6 and 7 are views showing a guide mechanism of the flow switching device according to an embodiment of the present invention.
8 and 9 are views showing a display device according to an embodiment of the present invention.
10 and 11 are views showing air flow in an air cleaner according to an embodiment of the present invention.
12 is a diagram showing a control configuration of an air cleaner according to an embodiment of the present invention.
FIG. 13 is a view showing a control flow of the air purifier according to an embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In describing the embodiments of the present invention, it is also possible to describe specific details of related known configurations or functions

In the case where it is determined that the description hinders understanding of the embodiment of the present invention, detailed description thereof will be omitted.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be " connected, " " coupled, " or " connected. &Quot;

[External configuration of air purifier]

1 is a view showing an appearance of an air cleaner according to an embodiment of the present invention.

1, an air purifier 10 according to an embodiment of the present invention is provided with air blowing apparatuses 100 and 200 for generating an air flow and air blowing apparatuses 100 and 200 for blowing air flowing direction generated by the air blowing apparatuses 100 and 200 And a switching device 300 for switching. As shown in FIG. 1, the air cleaner 10 is formed in a cylindrical shape as a whole.

{Blower}

The air blowing apparatuses 100 and 200 include a first air blowing apparatus 100 for generating a first air flow and a second air blowing apparatus 200 for generating a second air flow.

The first fan unit 100 and the second fan unit 200 may be arranged in the vertical direction. For example, the second fan unit 200 may be disposed above the first fan unit 100. In this case, the first air flow forms a flow for sucking the indoor air existing on the lower side of the air cleaner 10, and the second air flow is present on the upper side of the air cleaner 10 Thereby forming a flow for sucking indoor air.

The air cleaner (10) includes cases (101, 201) forming an outer appearance.

Specifically, the cases 101 and 201 include a first case 101 that forms an outer appearance of the first fan unit 100. In addition, The first case 101 may have a cylindrical shape. The upper portion of the first case 101 may have a smaller diameter than the lower portion. That is, the first case 101 may have a truncated conical shape.

The first case 101 includes a first separator 101a to which two parts constituting the first case 101 are coupled or separated. The first case 101 further includes a hinge (not shown) provided on the opposite side of the first separator 101a. The two parts can relatively rotate about the hinge part.

When at least one of the two parts rotates, the first case 101 is opened and can be separated from the air cleaner 10. An engaging device (not shown) may be provided on a portion to which the second parts are coupled, that is, on the opposite side of the hinge portion. The latching device may include a locking protrusion or a magnet member. The first casing 101 can be opened to replace or repair internal components of the first fan unit 100. [

In the first case 101, a first suction part 102 through which air is sucked is formed. The first suction portion 102 includes a through hole formed through at least a portion of the first case 101. A plurality of the first suction portions 102 are formed.

The plurality of first suction portions 102 are uniformly formed in the circumferential direction along the outer circumferential surface of the first case 101 so that air can be sucked in any direction with respect to the first case 101. That is, air can be sucked in the direction of 360 degrees with respect to the vertical center line passing through the inner center of the first case 101.

As described above, the first case 101 is formed in a cylindrical shape and a plurality of the first suction portions 102 are formed along the outer circumferential surface of the first case 101, so that the suction amount of air can be increased. By avoiding the hexahedral shape having the corner portion as in the case of the conventional air cleaner, it is possible to reduce the flow resistance to the air to be sucked.

Hereinafter, the directions are defined for convenience of explanation. 1, the vertical direction is referred to as an axial direction, and the horizontal direction is referred to as a radial direction. The axial direction may correspond to a center axis direction of a first fan 160 and a second fan 260, which will be described later, that is, a motor axis direction provided in the fan. The radial direction can be understood as a direction perpendicular to the axial direction.

The circumferential direction is understood to be an imaginary circular direction formed when the radial distance is rotated around the axial direction as a turning radius.

At this time, the air sucked through the first suction portion 102 may flow in a substantially radial direction from the outer circumferential surface of the first case 101.

The first fan unit 100 further includes a base 20 provided below the first case 101. The base 20 is spaced downward from the lower end of the first case 101. A base suction part 103 is formed in a space between the first case 101 and the base 20.

That is, the first fan unit 100 includes a plurality of suction units 102, 103. The air present in the lower part of the indoor space can easily flow into the first fan unit 100 through the plurality of suction units 102 and 103. [ Therefore, the intake amount of air can be increased.

A first discharge portion 105 is formed in the upper portion of the first fan unit 100. The air discharged through the first discharge portion 105 may flow upward in the axial direction.

In addition, the cases 101 and 201 include a second case 201 that forms an outer appearance of the second blowing device 200. [ The second case 201 may have a cylindrical shape. The upper portion of the second case 201 may have a smaller diameter than the lower portion. That is, the second case 201 may have a truncated conical shape.

The second case 201 includes two parts and a hinge part which can be separated or combined through the second separating part 201a. The second case 201 may be configured to be openable like the first case 101. For the detailed description, the description of the first case 101 is used. The second case 201 can be opened to replace or repair the internal parts of the second blowing device 200. [

The diameter of the lower end of the second case 201 may be smaller than the diameter of the upper end of the first case 101. Therefore, from the viewpoint of the overall shape of the cases 101 and 201, the lower cross-sectional area of the cases 101 and 201 is formed larger than the upper cross-sectional area. Accordingly, the air cleaner 10 can be stably installed.

In the second case 201, a second suction part 202 through which air is sucked is formed. The second suction portion 202 includes a through hole formed through at least a portion of the second case 201. A plurality of the second suction portions 202 are formed.

The plurality of second suction portions 202 are uniformly formed in the circumferential direction along the outer circumferential surface of the second case 201 so that air can be sucked in any direction with respect to the second case 201. That is, air can be sucked in the direction of 360 degrees with respect to the vertical center line passing through the inner center of the second case 201.

As described above, the second case 201 is formed in a cylindrical shape, and a plurality of the second suction units 202 are formed along the outer circumferential surface of the second case 201, so that the suction amount of air can be increased. In addition, as in the case of the conventional air cleaner, the effect of avoiding the hexahedron shape having the corner portion can reduce the flow resistance to the air to be sucked.

At this time, the air sucked through the second suction portion 202 may flow in a substantially radial direction from the outer circumferential surface of the second case 201. [

{Flow switching device}

The flow switching device 300 may be installed above the second blowing device 200. The upper portion of the flow switching device 300 is provided in the form of a flat plate, and a second discharge portion 305 is formed. That is, the second discharging portion 305 is positioned at the uppermost portion of the air cleaner 10 to form an appearance of the air cleaner 10.

Since the air cleaner 10 is provided with the second discharging unit 305 together with the first discharging unit 105 of the first air blowing apparatus 100, The effect to be discharged is shown.

On the basis of the air flow, the air flow path of the second fan unit 200 can communicate with the air flow path of the flow switching device 300. The air passing through the second fan unit 200 passes through the air flow path of the flow switching device 300 and can be discharged to the outside through the second discharge unit 305.

The flow switching device 300 may be movably installed. Specifically, the flow switching device 300 may be in a lying state (first position) or in an inclined standing state (second position), as shown in Fig.

In addition, a display device 600 for displaying operation information of the air cleaner 10 together with the second discharge portion 305 is provided on the flow conversion device 300. The display device 600 may move with the flow switching device 300.

{Block device}

The air cleaner 10 includes a partitioning device 400 provided between the first fan unit 100 and the second fan unit 200. The second blowing device 200 may be positioned above the first blowing device 100 by the partitioning device 400. The description related to the partitioning device 400 will be described later with reference to the drawings.

{battery}

In addition, the air purifier 10 according to the present invention is provided to be capable of being wired or wirelessly driven through a battery 700 or a power supply unit 520 (see FIG. 3). Accordingly, the air cleaner 10 according to the principles of the present invention further includes a battery 700.

As shown in FIG. 1, the battery 700 may be disposed below the first fan unit 100. That is, the battery 700 may be disposed at the lowermost portion of the air cleaner 10. This is for the air cleaner 10 to be stably installed on the ground. However, the arrangement of the battery 700 is only exemplary and not limited thereto.

In addition, the battery 700 may be detachably installed in the air cleaner 10. Accordingly, the air cleaner 10 may further include a structure for mounting the battery 700.

In addition, the battery 700 may be provided in various forms. For example, a plurality of battery cells accommodated in a predetermined case, and the battery cell may be a rechargeable and rechargeable secondary battery. The battery 700 may be a lithium battery.

[Internal Configuration of Air Purifier]

Hereinafter, each configuration of the air cleaner 10 will be described in detail.

FIG. 2 is a view showing the internal structure of the air purifier according to one embodiment of the present invention, and FIG. 3 is a cross-sectional view taken along line I-I 'of FIG.

{First blower}

2 and 3, the first fan unit 100 according to the embodiment of the present invention includes a base 20 and a suction grill 110 disposed on the upper side of the base 20. Between the base 20 and the suction grill 110, a base suction part 103 for forming a suction space for air is formed.

The suction grill 110 includes a substantially ring-shaped grill body 111 and a suction part 112 protruding upward from an outer circumferential surface of the grill body 111. The suction grill 110 may have a stepped configuration by the configuration of the grill body 111 and the suction part 112.

In addition, a plurality of suction holes 112a are formed in the suction portion 112. The plurality of suction holes 112a may communicate with the base suction portion 103. That is, the air sucked into the base suction part 103 can be flowed upward through the suction part 112 of the suction grill 110.

Air sucked through the plurality of suction holes 112a and the base suction unit 103 may pass through the first fitter member 120. [ The first filter member 120 is provided in a cylindrical shape and may have a filter surface for filtering air. Air that has passed through the plurality of suction holes 112a can be introduced into the cylindrical filter member 120 through the outer circumferential surface of the first filter member 120. [

The first fan unit 100 further includes a first filter frame 130 that defines a mounting space for the first filter member 120. The first filter frame 130 may include a first frame 131 forming a lower portion of the first filter frame 130 and a second frame 130 forming an upper portion of the first filter frame 130. [ (132). The first and second frames 131 and 132 may have a substantially ring shape.

The first filter frame 130 further includes a first filter support 135 extending upward from the first frame 131 toward the second frame 132. A plurality of first filter supports 135 may be provided and the plurality of first filter supports 135 may be arranged in the circumferential direction and connected to the rims of the first and second frames 131 and 132.

The mounting space of the first filter member 120 is defined by the first and second frames 131 and 132 and the plurality of first filter supports 135. A first support cover 136 may be coupled to the outside of the first filter support 135.

A first sensor device 137 may be installed in the first filter frame 130. The first sensor device 137 may include a dust sensor for sensing the amount of dust in the air and a gas sensor for sensing the amount of air in the air.

That is, the first sensor device 137 corresponds to an apparatus for measuring the degree of contamination of air flowing into the first fan unit 100. At this time, the dust sensor and the gas sensor may be arranged to be supported by the second frame 132 of the first filter frame 130.

In the mounting space, the first filter member 120 may be detachably mounted. The first filter member 120 has a cylindrical shape and air can be introduced through the outer peripheral surface of the first filter member 120. In the course of passing through the first filter member 120, impurities such as fine dust in the air can be filtered.

Since the first filter member 120 has a cylindrical shape, it is possible to introduce air in any direction with respect to the first filter member 120. Therefore, the filtering area of the air can be increased.

The mounting space may be formed in a cylindrical shape corresponding to the shape of the first filter member 120. The first filter member 120 may be slidably received in the mounting space during the mounting process. On the contrary, the first filter member 120 can be slidably drawn out from the mounting space in the separation process.

The first fan unit 100 further includes a first fan housing 150 installed at an outlet side of the first filter member 120. The first fan housing 150 is formed with a housing space 152 in which the first fan 160 is housed. The first fan housing 150 may be supported by the first filter frame 130.

A lower portion of the first fan housing 150 includes a first fan inlet 151 for guiding the inflow of air into the first fan housing 150. The first fan inlet 151 is provided with a grill so that when the first filter member 120 is disengaged, it is possible to prevent a user from inserting a finger or the like into the first fan housing 150 have.

In addition, the first fan unit 100 further includes a first ionizer 158 for removing or sterilizing air odor particles. The first ionizer 158 is coupled to the first fan housing 150 and can act on the air flowing inside the first fan housing 150.

The first ionizer 158 is a kind of NPI (Nano Plasma Ion), and generates sterilizing ions through a plasma reaction upon input of a power source. That is, the first ionizer 158 functions to dissolve sterilizing ions into the air, thereby eradicating floating microorganisms such as bacteria in the air. Accordingly, the unpleasant odor contained in the air can be removed.

The sensor device and the ionizer may also be installed in a second blower 200 to be described later. In addition, the sensor device and the ionizer may be installed in one of the first blowing device 100 and the second blowing device 200.

The first fan 160 is placed on the upper side of the first fan inlet 151. For example, the first fan 160 includes a centrifugal fan for introducing air in an axial direction and discharging air upward in a radial direction.

The first fan 160 includes a first fan motor 165 as a centrifugal fan motor, a hub 161 coupled to the rotation shaft 165a of the first fan motor 165, And a plurality of blades 163 disposed between the hub 161 and the shroud 162. The shroud 162 may include a plurality of blades 163 disposed between the shroud 162 and the hub 161, The first fan motor 165 may be coupled to the upper side of the first fan 160.

The hub 161 may have a bowl shape whose diameter decreases toward the downward direction. The hub 161 includes an axial coupling portion to which the rotary shaft 165a is coupled and a first blade coupling portion that extends upward from the axial coupling portion and extends obliquely.

The shroud 162 includes a lower end formed with a shroud suction port through which air having passed through the first fan inlet 151 is sucked, and a second blade coupling portion extending upward from the lower end.

One side of the blade 163 is coupled to the first blade coupling portion of the hub 161 and the other side is coupled to the second blade coupling portion of the shroud 162. The plurality of blades 163 may be spaced apart from each other in the circumferential direction of the hub 161.

The first fan unit 100 further includes a first air guide unit 170 coupled to an upper side of the first fan unit 160 and guiding the flow of air passing through the first fan unit 160 .

The first air guide device 170 includes an outer wall 171 having a cylindrical shape and an inner wall 172 having a cylindrical shape located inside the outer wall 171. The outer wall 171 is disposed so as to surround the inner wall 172. Between the inner circumferential surface of the outer wall 171 and the outer circumferential surface of the inner wall 172, a first air flow path through which air flows is formed.

The first air guide device 170 includes a guide rib 175 disposed in the first air passage. The guide ribs 175 extend from the outer circumferential surface of the inner wall 172 to the inner circumferential surface of the outer wall 171. A plurality of the guide ribs 175 may be spaced apart from each other. The plurality of guide ribs 175 guide the air introduced into the first air passage of the first air guide device 170 through the first fan 160 upward.

The guide ribs 175 may extend obliquely upward from a lower portion of the outer wall 171 and the inner wall 172. For example, the guide ribs 175 may be rounded to guide the air to flow upwardly.

The first air guide device 170 further includes a first motor receiving portion 173 extending downward from the inner wall 172 to receive the first fan motor 165. The first motor receiving portion 173 may have a shape of a bowl whose diameter decreases toward the bottom. The shape of the first motor receiving portion 173 may correspond to the shape of the hub 161. The first motor receiving portion 173 may be inserted into the hub 161.

The first fan motor 165 may be supported on the upper side of the first motor receiving portion 173. The rotation shaft 165a of the first fan motor 165 extends downward from the first fan motor 165 and extends through the bottom surface of the first motor receiving portion 173, And can be coupled to the axial coupling portion.

The first air guiding device 100 is connected to the first air guiding device 170 and guides the air that has passed through the first air guiding device 170 to the first discharge guiding device 190 A second air guide device 180 is provided.

The second air guide device 180 is provided with a first guide wall 181 having a substantially cylindrical shape and a second guide wall 182 located inside the first guide wall 181 and having a substantially cylindrical shape 182). The first guide wall 181 may be disposed to surround the second guide wall 182.

A second air passage through which air flows is formed between the inner circumferential surface of the first guide wall 181 and the outer circumferential surface of the second guide wall 182. Air flowing through the first air passage of the first air guide device 170 passes through the second air passage and flows upward. The second air flow path 185 may be referred to as a " discharge flow path ". A first discharge portion 105 is disposed above the second air flow path.

At this time, a first space portion in which at least a part of a PCB device 500 to be described later is accommodated is formed inside the second guide wall 182 having a cylindrical shape.

The first fan unit 100 further includes a first discharge guide unit 190 disposed on the upper side of the second air guide unit 180. That is, the first discharge guide device 190 is disposed at the outlet side of the air flow passing through the second air guide device 180 with respect to the air flow path, and discharges air to the outside of the air purifier 10 Guide.

The first discharge guide unit 190 is formed with the first discharge unit 105 through which air is discharged. That is, the first discharge guide device 190 forms an upper end outer appearance of the first fan unit 100.

{Second blower}

Hereinafter, the configuration of the second blower 200 will be described in detail with reference to an exploded view of the second blower shown in FIG.

FIG. 4 is an exploded view of the configuration of a second fan unit according to an embodiment of the present invention.

4, a second air blowing apparatus 200 according to an embodiment of the present invention includes a lever supporting device 560, a lever device 242, a supporting device 240, a second filter member 220, 2 filter frame 230, a second fan housing 250, and a second fan 260. [

The second filter member 220 may have a cylindrical shape with an open top. The second filter member 220 includes a filter body 221 having a hollow cylindrical filter portion and a filter hole 222 formed at an upper end of the filter body 221.

A filter grasping portion 221a is provided on an upper portion or a lower portion of the filter main body 221. [ Air may be introduced into the filter body 221 through the outer circumferential surface of the filter body 221 and may be discharged from the second filter member 220 through the filter hole 222.

The lever support device 560 includes a lever support body 561 having an annular shape. The lever supporting body 561 extends upward from the inner circumferential surface toward the outer circumferential surface with a slight inclination toward the axial direction. That is, the surface constituting the lever supporting body 561 constitutes an inclined surface. The inclined surface is provided to provide a second space portion 458 in which a user's hand can be located.

The lever supporting body 561 blocks the air discharged through the first discharging part 105 of the first fan unit 100 from flowing into the second fan unit 200, It may also be called a "blocker."

The lever supporting device 560 further includes a movement guide part 565 protruding upward from the lever supporting body 561. The movement guide portions 565 may be spaced apart from each other in the circumferential direction of the lever supporting body 561. The lever support device 560 further includes a support protrusion 566 protruding upward from the inner circumferential surface of the lever support body 561. The support jaw 566 supports the lever device 242.

The lever device 242 may be provided so as to be operable by a user. For example, the lever device 242 may be rotatable in the circumferential direction.

The lever device 242 includes a lever body 243 having a substantially ring shape and being rotatably provided. The lever body 243 is formed with a plurality of cut-out portions 245 disposed at positions corresponding to the plurality of movement guide portions 565. The plurality of cutouts 245 can be understood as through holes formed in the lever body 243.

The cutouts 245 are spaced apart from one another and arranged in the circumferential direction of the lever body 243. Each cutout portion 245 may be rounded so as to have a predetermined curvature in the circumferential direction corresponding to the curvature of the outer circumferential surface of the lever body 243.

The lever device 242 is supported on the upper surface of the lever support body 561. When the lever device 242 is supported by the lever support body 561, the plurality of movement guide parts 565 may be inserted into the plurality of cutouts 245. More specifically, the plurality of movement guide portions 565 may protrude upward from the plurality of cut-out portions 245 through the plurality of cut-out portions 245.

The length of each cutout portion 245 may be longer than the length of the movement guide portion 565. Accordingly, in a state in which the movement guide portion 565 is inserted into the cutout portion 245, the lever device 242 can be rotated. One end portion of the movement guide portion 565 may interfere with one end portion of the cutout portion 245 while the lever device 242 rotates in one direction, The other end of the guide portion 565 may interfere with the other end of the cutout portion 245.

The lever body 243 includes a second handle 244 provided on an outer circumferential surface of the lever body 243.

On the upper side of the lever device 242, a supporting device 240 for supporting the second filter member 220 is provided. The support device 240 includes a first handle 241 coupled to the second handle 244. The user can grasp the first and second handles 241 and 244 to rotate the lever body 143 and the supporting device 140 clockwise or counterclockwise.

The lever device 242 supports the lower surface of the support device 240. The support device 240 may be provided with a support protrusion (not shown) that contacts the movement guide portion 565. The support protrusion may protrude downward from a lower surface of the support device 240 and may be provided at a position corresponding to the movement guide portion 565. The shape of the support protrusion corresponds to the shape of the movement guide portion 565 and includes an inclined surface formed to protrude gradually in the circumferential direction.

The direction in which the movement guide part 565 is gradually protruded and the direction in which the support protrusion part is gradually protruded may be opposite to each other. For example, if the direction in which the movement guide part 565 gradually protrudes is counterclockwise, the direction in which the support protrusion gradually protrudes may be clockwise.

The support protrusion may be disposed at a position corresponding to the cut-out portion 245. That is, the movement guide portion 565 and the support protrusion may be disposed at a position where the movement guide portion 565 and the support protrusion are inserted into the cutout portion 145.

The lever device 242 and the support device 240 may be rotated together. In this rotation process, the movement guide portion 565 and the support protrusion can be interfered. Specifically, when the lower portion of the support projection and the upper portion of the movement guide portion 565 abut, the lever device 242 and the support device 240 are lifted upward. The second filter member 220 supported by the support device 240 is arranged to be coupled to the second fan unit 200 while moving upward.

The lever device 242 and the support device 240 can be moved in the same direction as the movement guide part 565 when the upper part of the support protrusion is in contact with the lower part of the movement guide part 565 or the interference between the support protrusion part and the movement guide part 565 is released It descends downward. The second filter member 220 supported by the support device 240 is disposed in a detachable state (released state) from the second fan device 200.

The second fan unit 200 further includes a second filter frame 230 that forms a mounting space for the second filter member 220. The second filter frame 230 includes a third frame 231 forming a lower portion of the first filter frame 230 and a third frame 231 forming an upper portion of the second filter frame 230. [ (232).

The third frame 231 includes a frame depression 231a having a downwardly recessed shape. The frame depression 231a may be configured such that at least a portion of the third frame 231 is recessed. The frame depression 231a provides a space through which the first and second handles 241 and 244 can move.

The fourth frame 232 is spaced upward from the third frame 231. The fourth frame 232 has a substantially ring shape. The ring-shaped inner space of the fourth frame 232 forms at least a part of the air passage passing through the second filter frame 230. The upper portion of the fourth frame 232 may support the second fan housing 250.

The second filter frame 230 further includes a second filter support portion 235 extending upward from the third frame 231 toward the fourth frame 232. The first and second frames 231 and 232 may be spaced apart from each other by the second filter support portion 235. A plurality of second filter supports 235 may be provided and the plurality of second filter supports 235 may be arranged in the circumferential direction and connected to the rims of the first and second frames 231 and 232.

The mounting space of the second filter member 220 is defined by the first and second frames 231 and 232 and the plurality of second filter supports 235. A second support cover 236 may be coupled to the outside of the second filter support 235.

A second sensor device 237 may be installed in the second filter frame 230. The second sensor device 237 may include a dust sensor 237a for detecting the amount of dust in the air and a gas sensor 237b for detecting the amount of air in the air. That is, the second sensor device 237 corresponds to a device for measuring the degree of contamination of air flowing into the second fan unit 200.

The dust sensor 237a and the gas sensor 237b may be arranged to be supported by the fourth frame 232. The description of the configuration of the second sensor device 237 may be applied to the first sensor device 137 as well.

In the mounting space, the second filter member 220 may be detachably mounted. The second filter member 220 has a cylindrical shape and air can be introduced through the outer circumferential surface of the second filter member 220. In the process of passing through the second filter member 220, impurities such as fine dust in the air can be filtered.

Since the second filter member 220 has a cylindrical shape, air can flow in any direction with respect to the second filter member 220. Therefore, the filtering area of the air can be increased.

The mounting space may be formed in a cylindrical shape corresponding to the shape of the second filter member 220. The second filter member 220 may be slidably received in the mounting space during the mounting process. On the contrary, the second filter member 220 can be slidably drawn out from the mounting space in the separation process.

In other words, when the first and second handles 241 and 244 are operated while the second filter member 220 is placed on the upper surface of the supporting device 240, the second filter member 220 is moved downward And is in the released position while moving. Then, the second filter member 220 is slid radially outward, and can be separated from the mounting space.

The second filter member 220 is slid radially inward toward the mounting space and is supported on the upper surface of the supporting device 240 while separated from the mounting space, (241, 244). At this time, the first filter member 220 is positioned at the coupling position with the first blower 200.

The second fan unit 200 further includes a second fan housing 250 installed on an outlet side of the second filter unit 220. The second fan housing 250 is formed with a housing space 252 in which the second fan 260 is housed. Since the second fan housing 250 and the second fan 260 have the same configuration as the first fan housing 150 and the first fan 160, The description of the second fan 260 is based on the description of the first fan housing 150 and the first fan 160.

In addition, the second fan unit 200 further includes a second ionizer 258 for removing or sterilizing air odor particles. The second ionizer 258 is coupled to the second fan housing 250 and can act on the air flowing inside the second fan housing 250. The second ionizer 258 may have the same configuration as the first ionizer of the first blower 100.

Referring again to FIGS. 2 and 3, the second fan unit 200 includes a third fan 260 coupled to an upper side of the second fan 260 to guide the flow of air passing through the second fan 260, The air guide device 270 is further included.

The third air guiding device 270 includes an outer wall 271 forming an outer circumferential surface of the third air guiding device 270 and an outer wall 271 located inside the outer wall 271, And an inner wall 272 forming an inner peripheral surface. A third air passage through which air flows is formed between the inner peripheral surface of the outer wall 271 and the outer peripheral surface of the inner wall 272.

The third air guide device 270 includes a guide rib 275 disposed in the third air passage. The guide ribs 275 extend from the outer circumferential surface of the inner wall 272 to the inner circumferential surface of the outer wall 271. A plurality of the guide ribs 275 may be spaced apart from each other. The plurality of guide ribs 275 guide the air introduced into the third air passage of the third air guide device 270 through the second fan 260 upward.

The third air guiding device 270 is provided with a second fan motor 265 which extends downward from the inner wall 272 and receives a second fan motor 265 for providing a driving force to the second fan 260, (273). The second motor receiving portion 273 may have a shape of a bowl whose diameter decreases toward the bottom.

The second air blowing device 200 is provided with a second air discharge guide device 270 installed above the third air guide device 270 for guiding the flow of air passing through the third air guide device 270, (Not shown).

The second discharge guide device 280 may have a substantially annular shape. The second discharge guide device 280 may form a fourth air passage, that is, a discharge passage, through which the air that has passed through the third air guide device 270 flows.

{Flow switching device}

The flow switching device 300 may be rotated in the left-right direction. Here, the " rotation in the horizontal direction " may mean rotation in the clockwise or counterclockwise direction with respect to the vertical direction. At this time, the third air guide device 270 and the second discharge guide device 280 are provided to guide movement of the flow switching device 300.

Hereinafter, the configuration of the flow switching device 300 will be described in detail with reference to Figs. 5 and 7. Fig.

FIG. 5 is a view showing a second discharge guide device, a third air guide device, and a flow switching device according to an embodiment of the present invention, and FIGS. 6 and 7 are views showing a flow switching device according to an embodiment of the present invention. Fig.

Referring to FIG. 5, the third air guide device 270 is provided with guide devices 276 and 277 for guiding the movement of the flow switching device 300. The guide devices 276 and 277 include a first rack 276 and a shaft guide groove 277 provided in the second second motor accommodating portion 273.

The first rack 276 is understood to be a structure for guiding the rotation of the flow switching device 300 in the left and right directions in cooperation with the first gear 360 of the flow switching device 300. The first rack 276 is provided on the inner peripheral surface of the second motor receiving portion 273 and may extend in the circumferential direction according to a set curvature. The length of the first rack 276 may be set to a predetermined length based on a distance that is interlocked with the first gear 360.

Therefore, the flow switching device 300 can be rotated in the left-right direction. Here, the " rotation in the horizontal direction " may mean rotation in the clockwise or counterclockwise direction with respect to the vertical direction. In this process, the first gear 360 can rotate with a predetermined radius of rotation about the rotational axis 354 of the flow switching device 300

The shaft guide groove 277 is a groove that guides the rotation of the first gear 360, and is conceived as a configuration that rounds to a predetermined curvature. For example, the shaft guide groove 277 may be formed to be rounded in the circumferential direction. That is, the shaft guide groove 277 may have a circular arc shape.

The first gear shaft 362 of the first gear 360 may be inserted into the shaft guide groove 277. The first gear shaft 362 may be moved along the shaft guide groove 277 in the course of the rotation of the first gear 360.

The second discharge guide device 280 includes a rotation guide plate 283 extending from the inner peripheral surface toward the inner center.

The rotation guide plate 283 includes an axis inserting portion 284 for providing the rotational center of the flow switching device 300 in the lateral direction. The rotation shaft 354 can be inserted into the shaft insertion portion 284. The shaft insertion portion 284 may be located at an inner center portion of the second discharge guide device 280. The rotation guide plate 283 may be understood as a support plate for supporting the shaft insertion portion 284.

The rotation guide plate 283 further includes a bearing groove 285. In the bearing groove 285, a first bearing 353 provided in the flow switching device 300 may be inserted. The bearing groove 285 is understood to be a configuration which is rounded to a curvature set as a groove for guiding the movement of the first bearing 353. For example, the bearing groove 285 may be formed to be rounded in the circumferential direction. That is, the bearing groove 285 may have a circular arc shape.

The first bearing 353 may be inserted into the bearing groove 285 to move in the rotation direction of the fluid switching device 300 and thus the first bearing 353 may be inserted into the bearing groove 285, The frictional force can be reduced.

The flow switching device 300 includes a third fan housing 310 in which a third fan 330 is accommodated. The third fan housing 310 has a substantially annular shape. In detail, the third fan housing 310 includes a housing cover 312 which forms an outer appearance.

On the inside of the housing cover 312, a housing main body 311 having an annular shape is provided. That is, the housing cover 312 is coupled to the outer circumferential surface of the housing main body 311 and can be supported by the housing main body 311.

For convenience of explanation, it is divided into first, second, and third, and is not related to the order. Also, the first fan 160 and the second fan 260 may be referred to as a "main fan", and the third fan 330 may be referred to as a "sub-fan". In other words, the first and second fans 160 and 260 may be referred to as a "blower fan", and the third fan 330 may be referred to as a "flow switching fan".

The third fan 330 may include an axial flow fan. In detail, the third fan 330 may be operated to discharge the axially introduced air in the axial direction.

Also, as shown in FIG. 6, the third fan 330 is exposed to the outside by the second discharge portion 305. Exposure to the outside means that a predetermined foreign matter can be introduced through the second discharging unit 305 and that the third fan 330 is disposed outside the air cleaner 10 It does not.

The third fan 330 includes a hub having an axial coupling portion to which a rotary shaft 336 of a third fan motor 335 as an axial fan motor is coupled and a plurality of blades circumferentially coupled to the hub. The third fan motor 335 is coupled to the lower side of the third fan 330 and may be disposed inside the third motor housing 337.

Here, the first fan motor 165, the second fan motor 265, and the third fan motor 335 may be arranged in a line with respect to the longitudinal direction of the air cleaner 10.

The housing main body 311 includes a cover supporting portion 311a which protrudes from the outer circumferential surface of the housing main body 311 and supports the inside of the housing cover 312. [ The cover supporting portion 311a has a bent shape and the outer surface of the cover supporting portion 311a can be coupled to the inner surface of the housing cover 312. [

The housing cover 312 is disposed to surround the housing body 311, and the housing body 311 and the housing cover 312 can be rotated or moved together. The third fan 330 is accommodated in the housing body 311. A housing flow path 314 through which air flows by driving the third fan 330 is formed in the inner space of the housing main body 311. The blades of the third fan 330 may be positioned in the housing flow path 314.

By the rotation of the third fan 330, air can flow upward through the housing channel 314. The housing passage 314 extends from a space where the blades are located to an upper space of the blades.

A first discharge grill 315 is formed on the third fan housing 310 to form a second discharge portion 305 through which air having passed through the third fan 330 is discharged. The first discharge grille 315 has a shape recessed in a substantially central portion of the first discharge grille 315. At this time, the display device 600 may be installed at the depressed central portion.

The second discharge portion 305 may be formed on the upper side of the housing flow path 314. Therefore, air passing through the housing passage 314 can be discharged to the outside of the air cleaner 10 via the second discharging portion 305.

That is, the air that has flowed upward toward the third fan 330 through the second fan 260, the third air guide device 270, and the second discharge guide device 280 flows toward the third fan 330, (330), and is discharged to the outside through the second discharge portion (305) positioned above the third fan (330).

The flow switching device 300 includes a flow guide part coupled to a lower side of the third fan housing 310 and guiding air passing through the second discharge guide device 280 to the third fan housing 310 320). The flow guide part 320 includes an inlet grill 325 for guiding the inflow of air into the third fan housing 310. The inlet grill 325 may have a concave shape downward.

The second discharge guide device 280 is provided with a second discharge grill 288 corresponding to the shape of the inflow grill 325. The inflow grill 325 may be seated above the second discharge grill 288. Accordingly, the inflow grill 325 can be stably supported on the second discharge grill 288. [

The flow switching device 300 is provided with a rotation guide device 350 installed below the flow guide part 320 and guiding rotation of the flow switching device 300 in the left and right direction and rotation in the up and down directions . The rotation in the left and right direction may mean rotation in the clockwise or counterclockwise direction with respect to the axial direction. The rotation in the left-right direction may be referred to as " rotation in the first direction ", and the rotation in the up-down direction may be referred to as the " rotation in the second direction ".

The rotation guide unit 350 includes a guide body 351 coupled to the flow guide unit 320. The rotation guide device 350 may further include a first guide mechanism for guiding rotation of the flow switching device 300 in the first direction and a second guide mechanism for guiding the rotation of the flow switching device 300 in the second direction And a guide mechanism.

At this time, the first guide mechanism is disposed on one side of the guide body 251, and the second guide mechanism is disposed on the other side of the guide body 251. Hereinafter, a mode in which the first guide mechanism is disposed below the guide body 251 and the second guide mechanism is disposed above the guide body 251 will be described.

Referring to FIG. 6, the first guide mechanism includes a first gear motor 363 for generating a driving force, and a first gear 360 coupled to the first gear motor 363 for rotation. For example, the first gear motor 363 may include a step motor that can easily control the rotation angle. The first gear motor 363 may include a motor capable of rotating in both directions.

The first gear 360 is coupled to the motor shaft 363a of the first gear motor 363. The first guide mechanism is provided with a first gear shaft 362 extending downward from the first gear 360, that is, toward the third air guide device 270 or the second discharge guide device 280 .

The first gear 360 is gear-engaged with the first rack 276 of the third air guide device 270. A plurality of gears are formed in the first gear 360 and the first rack 276. When the first gear motor 363 is driven, the first gear 360 rotates and interlocks with the first rack 276. At this time, since the third air guide device 270 has a fixed structure, the first gear 360 can be moved along the first rack 276.

The shaft guide groove 277 of the third air guide device 270 can guide the movement of the first gear 360. In detail, the first gear shaft 362 can be inserted into the shaft guide groove 277. The first gear shaft 362 may be moved in the circumferential direction along the shaft guide groove 277 during the rotation of the first gear 360.

The first guide mechanism further includes a rotation shaft 354 constituting a rotation center of the flow switching device 300. The first gear 360 and the first gear shaft 362 may be rotated with a rotation radius set around the rotation axis 354. At this time, the set turning radius is called " first turning radius ".

The first rack 276 and the shaft guide groove 277 may have a length corresponding to the rotation amount or the rotation angle of the flow switching device 300. The circumferential length of the first rack 276 and the shaft guide groove 277 may be formed to be slightly larger than the circumferential distance in which the flow switching device 300 rotates. Accordingly, it is possible to prevent the first gear 360 from being detached from the first rack 276 while the first gear 360 is moving. In addition, it is possible to prevent the first gear shaft 362 from interfering with the end of the shaft guide groove 277 during the movement of the first gear shaft 362.

The rotation shaft 354 may be provided on a lower surface of the guide body 251. Specifically, the rotation shaft 354 may protrude downward from the lower surface of the guide body 251. The rotation shaft 354 is inserted into the shaft insertion portion 284 of the second discharge guide device 280 and can be rotated in the shaft insertion portion 284.

That is, when the first gear 360 rotates, the first gear shaft 362 and the first gear 360 rotate in the circumferential direction around the rotation shaft 354. The rotation shaft 354 is rotated in the shaft insertion portion 284. Accordingly, the flow switching device 300 can be rotated in the first direction, that is, clockwise or counterclockwise, with the longitudinal direction being the axial direction.

Referring to FIG. 7, the second guide mechanism includes a guide member 352 fixed to the guide body 351. The center shaft 354 may be provided on a lower surface of the fixed guide member 352.

The fixed guide member 352 includes a first guide surface 352a that supports the lower side of the rotation guide member 370 and guides the rotation of the rotation guide member 370 in the second direction. The first guide surface 352a forms at least a part of the upper surface of the fixed guide member 352 and may extend upward to correspond to the rotation path of the rotation guide member 370.

A first guide bearing 359 which is provided in the fixed guide member 352 so as to be able to contact the rotation guide member 370 and can reduce the frictional force generated when the rotation guide member 370 is rotated, . The first guide bearing 359 may be positioned on the side of the first guide surface 352a.

The stationary guide member 352 further includes a second gear insertion portion 352b through which the second gear 365 can be inserted for rotation of the rotation guide member 370. [ The second gear insertion portion 352b is formed on one side of the first guide surface 352a. For example, the second gear insertion portion 352b may be formed by cutting at least a portion of the first guide surface 352a.

At least a portion of the second gear 365 may protrude above the second gear inserting portion 352b through the second gear inserting portion 352b.

The second guide mechanism further includes a second gear motor (367) coupled to the second gear (365) to provide a driving force. For example, the second gear motor 367 may include a step motor. The second gear motor 367 may include a motor capable of bi-directional rotation.

The second guide mechanism further includes a second gear shaft (366) extending from the second gear motor (367) to the second gear (365). The second gear shaft 366 may protrude laterally from the second gear motor 367. When the second gear motor 367 is driven, the second gear shaft 366 and the second gear 365 may be rotated together.

The second guide mechanism further includes a rotation guide member 370 disposed on the upper side of the fixed guide member 352 and rotatable in the vertical direction. The rotation guide member 370 may be coupled to the lower portion of the flow guide unit 320.

Specifically, the rotation guide member 370 includes a body portion 371 supported by the fixed guide member 352. [ The body portion 371 includes a second guide surface 372 that moves along the first guide surface 352a. The second guide surface 372 may be rounded downwardly corresponding to the curvature of the first guide surface 352a.

The rotation guide member 370 is provided with a second guide bearing 375 which is provided so as to be able to contact with the fixed guide member 352 and can reduce the frictional force generated when the rotation guide member 370 rotates . The second guide bearing 375 is located on the side of the second guide surface 372 and can move along the first guide surface 352a in the course of the rotation of the rotation guide member 370. [

The rotation guide member 370 further includes a second rack 374 interlocked with the second gear 365. A plurality of gears are formed in the second gear 365 and the second rack 374 and the second gear 365 and the second rack 374 are gear- .

When the second gear motor 367 is driven, the rotation guide member 370 can move in the vertical direction by interlocking the second gear 365 and the second rack 374 have. Therefore, the flow switching device 300 can perform the second direction rotation according to the movement of the rotation guide member 370.

{Block device}

2 and 3, in the partitioning device 400, air flow generated in the first fan unit 100 and air flow generated in the second fan unit 200 are separated or blocked The partition plate 430 is provided. The first and second fan units 100 and 200 may be spaced apart from each other in the vertical direction by the partition plate 430.

That is, a spacing space in which the partition plate 430 is located is formed between the first and second fan units 100 and 200. The first discharge guide unit 190 of the first fan unit 100 is positioned at the lower end of the spacing space and the lever support unit 560 of the second fan unit 200 is positioned at the upper end of the spacing space. .

The spacing space may be divided into an upper space and a lower space by the partition plate 430. The lower space is a first space portion 448 passing through the process of the air discharged from the first discharge portion 105 of the first discharge guide device 190 to the outside of the air cleaner 10 do. The upper space constitutes a second space portion 458 as a holding space for allowing a user to insert a hand when the user moves the air cleaner 10. [

The air discharged from the first discharging unit 105 is guided by the partition plate 430 and flows to the outside of the air cleaner 10 and can be prevented from flowing into the second air blowing apparatus 200 have.

{Display device}

As described above, the display device 600 for displaying the operation information of the air cleaner 10 is provided on the flow switching device 300.

Hereinafter, the configuration of the flow switching device 300 will be described in detail with reference to Figs. 8 and 9. Fig.

8 and 9 are views showing a display device according to an embodiment of the present invention.

8 and 9, the display device 600 may be installed in the discharge grill 315. [ A plurality of grill portions 315a may extend from the depression 318 toward the outside in the radial direction at a substantially central portion of the discharge grill 315 . The display device 600 may be disposed above the depression 318.

The display device 600 includes a PCB assembly 601. The PCB assembly 601 includes a display PCB 610 having a plurality of light sources 651 and 655 and a plurality of light sources 651 coupled to the upper side of the display PCB 610, And a reflector 620 concentrating the display screen 602 toward the display screen 602.

The plurality of illumination sources 651 and 655 are provided with a first illumination source 651 for displaying the operation information of the air purifier 10 and a second illumination source 651 for displaying the edge of the display screen 602 of the display device 600 And a second illumination source 655 are included.

The display screen 602 is formed on the upper surface of the display device 600 as a predetermined area (hereinafter referred to as a display area) where the information can be displayed. The rim of the display screen 602 may form a boundary of the display area.

The display PCB 610 is provided with a substantially circular plate. The first illumination source 651 may be installed on a front surface of the display PCB 610 and the second illumination source 655 may be installed on a rear surface of the display PCB 610.

The first illumination source 651 may be provided in correspondence with the shape of the content to be displayed. A plurality of the second illumination sources 655 may be provided and the second illumination sources 655 may be disposed along the rear edge of the display PCB 610. For example, the plurality of second illumination sources 655 may be arranged in a circular shape.

The reflector 620 includes a through hole 623 for concentrating the light emitted from the first illumination source 651 upward. The reflector 620 may be formed of an opaque material whose transmission of light is limited, or may be coated with the opaque material.

On the upper side of the reflector 620, a reflector film may be provided. In the reflector film, the content of the information to be displayed, that is, a predetermined character, a number, a symbol, or the like is displayed, and predetermined information can be implemented. For example, characters such as "smell", "dust", "fine dust", "filter change", 888 patterns capable of displaying numbers, symbols indicating strength of wind volume, and the like may be included.

At this time, various information can be displayed by on / off control of the first illumination sources 651.

In addition, the display device 600 includes a diffusion plate 630 surrounding the outside of the PCB assembly 601. The diffusion plate 630 can be understood as a configuration for forming the rim 650 of the display screen 622 by diffusing the light emitted from the second illumination source 655.

The diffusion plate 630 may be disposed along the rim of the depression 318. The diffusing plate 630 is provided with a plate body 631 arranged to surround the display PCB 610 and a second light source 655 projecting from the inner circumferential surface of the plate body 631, The light receiving portion 635 is formed. The plate body 631 may have a ring shape and may be supported by the discharge grill 315. The plate body 631 and the illumination accommodating portion 635 may be integrally formed.

The plate body 631 and the light receiving portion 635 may be made of a translucent material capable of refracting or diffusing light. For example, the plate body 631 and the illumination accommodating portion 635 may be made of acrylic material.

The plate body 631 may form a rim 650 of the display screen 622. The upper portion of the plate body 631 may be exposed on the upper surface of the air cleaner 10 and the light emitted from the second illumination source 655 may be reflected by the illumination accommodating portion 635, And the plate body 631 as shown in Fig. The diffused light may move to the upper portion of the air cleaner 10 to form the rim 650.

Since the plate body 631 and the illumination accommodating portion 635 are made of a translucent material, the edge portion 650 can be realized as a soft light. Therefore, a comfortable display screen can be formed.

The display device 600 further includes a display cover 640 provided on the PCB assembly 601. The display cover 640 can be understood as a configuration for supporting the outside of the display PCB 610 and for keeping the cover film 645 flat. The display cover 640 may be made of an opaque material to prevent transmission of light.

In the display cover 640, a cover hole 641 having a shape corresponding to the reflector film is formed. According to the structure of the cover hole 641, even if the display cover 640 is coupled to the reflector 620, the reflector film can be exposed upward.

On the upper side of the display cover 640, a cover film 645 is provided. For example, the cover film 645 may be attached to the upper surface of the display cover 640. The cover film 645 may be made of a semi-transparent material to transmit only a part of the light transmitted from the PCB assembly 601. For example, the translucent material may include acrylic or polymethyl methacrylate resin (PMMA). By providing the cover film 645, information displayed through the display device 600 can be prevented from being excessively realized.

The cover film 645 is provided with a film display portion 646 for inputting a predetermined command by the user or displaying some operation information among a plurality of operation information of the air cleaner 10.

In addition, as shown in FIG. 9, the display device 600 includes various input units. The input unit may be a button or a touch type recognized by a user's depression. In addition, a predetermined signal may be input to the input unit using a remote signal device such as a remote controller.

The input unit is provided with a power input unit 660 for turning on / off the air cleaner 10. In addition, for convenience of the user, an input unit for various functions such as wind intensity, off reservation, and the like can be provided.

{Control device}

A controller 500 is provided in the air cleaner 10 according to the present invention. 2 and 3, the control device 500 includes a power supply unit 520 and a main PCB 510. [

The power supply unit 520 is a device for supplying power to a plurality of components in the main PCB 510 and the air purifier 10 by receiving a commercial power supplied from a power line connected to the air cleaner 10, . The power supply unit 520 may include an AC power PCB (power PCB).

The controller 500 further includes a PCB support plate 525 for supporting the power supply unit 520 and the main PCB 510. The main PCB 510 is supported on one side of the PCB support plate 525 and the power supply unit 520 can be supported on the other side of the PCB support plate 525.

The control device 500 also includes a communication module 515 through which the air cleaner 10 can communicate with an external device. For example, the communication module 515 may include a Wi-Fi module. The communication module 515 is supported on the PCB support plate 525 and may be disposed on the lower side of the main PCB 510.

The main PCB 510 may include a PCB for a DC power source driven by a DC voltage converted from the AC power source PCB. At this time, the main PCB 510 can be understood as a 'control unit' for controlling various configurations of the air cleaner 10. Hereinafter, the main PCB 510 is referred to as a control unit.

In addition, the control device 500 is provided with a configuration for controlling the battery 700. For example, the battery 700 can be mounted, used, and remained. In particular, when the commercial power is not applied to the power supply unit 520, the controller 500 may operate the air cleaner 10 by using the power of the battery 700.

Hereinafter, the flow of air and the movement of the flow switching device when the air cleaner 10 is driven will be described based on the above configuration.

[Operation of air purifier]

10 and 11 are views showing air flow in an air cleaner according to an embodiment of the present invention.

Referring to FIGS. 10 and 11, the flow of air according to the driving of the first blower 100 will be described. When the first fan (160) is driven, indoor air is sucked into the first case (101) through the first suction unit (102) and the base suction unit (103). The sucked air passes through the first filter member 120, and the foreign matter in the air can be filtered during this process. In the course of air passing through the first filter member 120, the air is sucked in the radial direction of the first filter member 120, filtered, and then flows upward.

The air that has passed through the first filter member 120 flows upward in the radial direction while passing through the first fan 160 and passes through the first and second air guide devices 170 and 180, . Air that has passed through the first and second air guide apparatuses 170 and 180 passes through the first discharge guide unit 190 and flows upward through the first discharge unit 105.

The air discharged through the first discharging unit 105 is guided by the partition plate 430 located above the first discharging guide unit 190 and discharged to the outside of the air purifier 10.

Meanwhile, when the second fan (260) is driven, indoor air is sucked into the second case (201) through the second suction part (202). The sucked air passes through the second filter member 220, and foreign matter in the air can be filtered during this process. In the course of air passing through the second filter member 220, the air is sucked in the radial direction of the second filter member 220 to be filtered, and then flows upward.

The air that has passed through the second filter member 220 flows upward in the radial direction while passing through the second fan 160 and flows through the third air guide device 270 and the second discharge guide device 280 A stable upward flow is achieved. Air that has passed through the third air guide device 270 and the second discharge guide device 280 can be discharged through the second discharge portion 305 via the flow switching device 300.

At this time, the flow switching device 300 may be vertically rotatable by the second guide mechanism. For example, as shown in FIG. 10, when the fluid switching device 300 is in the first position, the air discharged from the fluid switching device 300 flows upward.

On the other hand, as shown in FIG. 11, when the fluid switching device 300 is in the second position, the air discharged from the fluid switching device 300 may flow toward the front upper side. Therefore, the air flow rate of the air discharged from the air purifier 10 is increased by the flow switching device 300, and the purified air can be supplied to a position far from the air purifier 10 .

When the third fan (330) of the flow switching device (300) is driven, at least part of the air discharged from the second discharge guide device (280) flows into the third fan housing (310) Lt; / RTI > The introduced air may pass through the third fan 330 and may be discharged to the outside through the second discharging unit 305.

In addition, the flow switching device 300 may be rotated in the left-right direction by the first guide mechanism in the second position. According to such an operation, air can be discharged to both sides of the front side of the air cleaner 10, thereby providing an air flow toward a relatively large indoor space.

In addition, since the flow switching device 300 is provided with a separate third fan 330, the blowing force of the discharged air can be increased.

Depending on the mode of operation of the air purifier 10, the flow switching device 300 may selectively operate. For example, when the air cleaner 10 is operated in the normal operation mode (first operation mode), the flow switching device 300 is in the first position lying down, as shown in FIG. Then, the first and second fan units 100 and 200 are driven, and a plurality of independent airflows can be formed.

On the other hand, when the air cleaner 10 is operated in the flow switching mode (second operation mode), the flow switching device 300 is moved upward, as shown in FIG. 11, And may protrude from the upper end. For reference, in the flow switching mode, the driving of the first and second fan units 100 and 200 may be the same as the driving of the first and second fan units 100 and 200 in the normal operation mode.

In addition, the flow switching device 300 can change the air flow of the air cleaner 10 while rotating in a state of being in each position.

Hereinafter, each configuration of the air cleaner 10 controlled by the control unit 510 described above will be described.

[Control of air purifier]

12 is a diagram showing a control configuration of an air cleaner according to an embodiment of the present invention.

As shown in FIG. 12, the air purifier 10 according to an embodiment of the present invention is provided with a control unit 510 for controlling various configurations. The description of each configuration is based on the above description, and only the configuration control by the control unit 510 will be described.

The controller 510 can turn on / off each component or control the components in stages. 12, only a partial configuration of the air cleaner 10 is shown, and the configuration controlled by the controller 510 is not limited thereto.

For example, the control unit 510 can control the first fan motor 165, the second fan motor 265, and the third fan motor 335 to turn on / off or adjust the RPM, respectively have. Accordingly, the first fan 160, the second fan 260, and the third fan 330 may be turned on or off, respectively, and may be driven with a predetermined air flow rate. At this time, the first fan 160, the second fan 260, and the third fan 330 may be driven at various levels of airflow according to RPM control.

The controller 510 controls the first gear motor 363 and the second gear motor 365 to drive the first gear 360 and the second gear 367. That is, the flow switching device 300 can be controlled by moving or rotating the flow switching device 300 up and down.

The control unit 510 may turn on or off the sensor units 137 and 237, the ionizers 158 and 258, and the communication module 515, or may control the steps. For example, the communication module 515 may be turned on only when there is a predetermined input signal, or the ionizers 158 and 258 may be turned on only when the air pollution degree is relatively high.

In addition, the controller 510 controls the display PCB 610 to display predetermined information. For example, the control unit 510 turns on both the first illumination source 651 and the second illumination source 655 to visualize predetermined information, turns on only the first illumination source 651, Information can be visualized in a dark state.

And a signal input from the input unit may be transmitted to the controller 510. FIG. At this time, various signals can be input in the input unit, but only the power input unit 660 is shown for the sake of explanation. For example, the control unit 510 may turn on / off the air cleaner 10 according to a signal transmitted from the power input unit 660.

The signal transmitted from the input unit corresponds to a signal input by the user, and therefore, the signal can generally be prioritized and controlled. In addition, the controller 510 can turn on / off the air cleaner 10 or operate in a predetermined operation mode if a predetermined condition is met without the input of the input unit.

In addition, a signal input from the power supply unit 520 may be transmitted to the controller 510. FIG. At this time, the power supply unit 520 can transmit information on coupling and disconnection with an external power source. The control unit 510 controls the air cleaner 10 using the power of the battery 700 when the power supply unit 520 informs the external power source of the detachment.

In detail, when external power is connected, the power supply unit 520 supplies power to various devices. Also, the power of the battery 700 can be charged by the power supply unit 520. In addition, when the external power source is disconnected, the battery 700 supplies power to various devices.

In addition, the power supply unit 520 may be omitted in the air cleaner 10 according to the present invention. Therefore, the battery 700 can be supplied with electric power, and the battery 700 can be charged. At this time, the battery 700 may be separately provided with a charging unit or a charging connection unit.

12, the battery 700 includes a relay unit 710 for opening and closing an input or an output current of the battery 700, and a current measuring unit 710 for measuring a current value input or output from the battery 700. [ The sensing unit 720 is included.

The relay unit 710 may electrically connect or disconnect the battery 700 with another device. For example, the relay unit 710 may supply or shut off the power of the battery 700 to various devices. In addition, the relay unit 710 may be connected to or disconnected from an external device for charging the battery 700.

The current sensing unit 720 may measure the amount of current due to the electrical connection of the battery 700. For example, when various devices are driven by the power of the battery 700, the current sensing unit 720 may measure the consumption rate and the remaining amount of the battery 700 through the amount of current of the battery 700. Also, when the battery 700 is charged, the current sensing unit 720 may measure the charging speed and the charging amount based on the amount of current of the battery 700.

At this time, if the current value measured by the current sensing unit 720 does not correspond to the normal range, the relay unit 710 cuts off the current of the battery 700. The normal range means a current value measured when various devices, the battery 700, etc. are normally operated and connected. In addition, it is understood that interrupting the current of the battery 700 interrupts the electrical connection between the battery 700 and another device.

For example, when the battery 700 is not normally operated, the current value may not correspond to the normal range. Also, when various devices are operated by the battery 700, the current value may not correspond to a normal range when various devices are not normally operated.

The air cleaner 10 according to the present invention includes the first fan 160, the second fan 260, and the third fan 330 as described above. At this time, when the fans are in a fan lock state in which they can not be normally driven, the current value does not fall within the normal range.

Specifically, the current value rises sharply, and the amount of change of the current value changes greatly. Therefore, when the amount of change in the battery output current value is equal to or greater than a predetermined value, it can be determined that the state corresponds to the fan lock state. Accordingly, it is determined that at least one of the first fan 160, the second fan 260, and the third fan 330 driven by the battery 700 is in a fan lock state , And the relay unit 710 cuts off the current of the battery 700.

Also, in the configuration of the air cleaner 10 according to the present invention, the third fan 330 is very likely to be fan-locked. 1 and 3, the first fan 160 and the second fan 260 are located inside the air cleaner 10, and the first discharging unit 105, which is capable of intruding foreign matter, Or the second discharge port (305).

On the other hand, the third fan 330 is arranged adjacent to the second discharge port 305, and the possibility of foreign matter flowing through the second discharge port 305 is relatively high. Therefore, when the third fan (330) is driven, if the fan lock is detected, only the power output to the third fan motor (335) can be cut off. In addition, it may be determined that the foreign material in the second discharging unit 305 is removed from the display unit 600 based on the determination that the foreign material is introduced into the second discharging opening 305.

At this time, even if the occurrence of fan lock is detected, the first fan 160 and the second fan 260 can be driven as they are to continue air cleaning. That is, regardless of the driving of the first fan 160 and the second fan 260, when the fan lock is detected during the operation of the third fan 330, only the third fan 330 can be stopped .

In addition, as described above, the flow switching device 300 according to the present invention is movably installed. At this time, the flow switching device 300 may not be normally moved if a predetermined foreign matter flows into the flow switching device 300 or an obstacle exists around the air cleaning device 10.

When the amount of change in the output current value of the battery 700 is equal to or greater than a predetermined value when the flow switching device 300 is moved by the power of the battery 700, 300 are in a fixed state. At this time, it can be understood that the fixed state is a state in which the flow switching device 300 can not be normally driven, as well as a state in which the fixed state is not fully movable.

The relay unit 710 may block the current of the battery 700 outputted to the first gear motor 363 or the second gear motor 365 that moves the flow switching device 300 . In addition, the display unit 600 may indicate that the flow switching device 300 is in a fixed state.

Also, when the battery 700 is charged by an external power source, the measured power value may not be included in the range of the input power value when the battery 700 is normally charged. At this time, the relay unit 710 may cut off the power input to the battery 700. FIG. In addition, the display unit 600 may display the charging failure of the battery 700.

Hereinafter, one embodiment described in Fig. 13 will be described with reference to Fig.

FIG. 13 is a view showing a control flow of the air purifier according to an embodiment of the present invention.

As shown in Fig. 13, the air cleaner 10 is turned on (S10). At this time, a power source signal may be input from the power input unit 660 by the user. In addition, if the pollution degree of the space in which the air cleaner 10 is installed is measured, if the pollution degree is predetermined, the air conditioner 10 can be turned on without inputting the power source by the user.

When the air cleaner 10 is turned on, the battery 700 is electrically connected to various devices provided in the air cleaner 10 (S20). It can be understood that this is performed by the relay unit 710 and the battery 700 is relay-ON.

When the power supply unit 520 is provided, it may be determined whether the power supply unit 520 is connected to an external power supply. Hereinafter, a case where the power supply unit 520 is not provided or connected to an external power supply will be described.

The battery 700 is relays-on, and the current value of the battery 700 is measured by the current sensing unit 720 (S30). Specifically, it corresponds to a current value output from the battery 700 to various devices.

Also, a device driven by the battery 700 is checked (S40). As described above, the air cleaner 10 is provided with various devices and not all the devices are always used. For example, the flow switching device 300 is not used, and only the first and second fan units 100 and 200 can be used.

At this time, the consumed current value, that is, the current value in the normal range is calculated (S50) when the used device is normally operated. For example, when the flow switching device 300 is not used and only the first and second fan units 100 and 200 are used, the current value may be relatively small. This information may be provided differently depending on the design, and information on the information may be stored in the control unit 510.

Then, it is determined whether the current value measured by the battery 700 is included in the current value in the normal range (S60). If so, the current value output from the battery 700 and the driven device are continuously monitored. If not, the battery 700 is electrically separated from the various devices provided in the air cleaner 10 (S70). It can be understood that this is performed by the relay unit 710 and the battery 700 is relay-off.

In addition, when a problematic device is identified, the battery 700 can be relay-off only to the device. Thus, it is possible to determine whether the various devices are normally operated through the amount of current of the battery 700, and whether the battery 700 is normally operated or connected.

10: air cleaner 100: first blower
200: second blower 300: flow switching device
400: partition device 500: control device
510: control unit 520: power supply unit
600: Display device 700: Battery
710: Relay unit 720: Current sensing unit

Claims (15)

A first blower;
A second blower installed on an upper portion of the first blower;
A flow switching device movably provided on an upper portion of the second fan unit; And
A battery for supplying electric power to at least one of the first blowing device, the second blowing device, and the flow switching device; And
And a control unit for driving at least one of the first blower unit, the second blower unit, and the flow switching unit with the power of the battery,
In the battery,
A relay unit for opening / closing the input or output current of the battery; And
And a current sensing unit for measuring a current value input or output from the battery,
Wherein the relay unit cuts off the current of the battery when the current measured by the current sensing unit does not fall within a normal range. The method according to claim 1,
A first fan provided in the first fan unit and driven by a first fan motor;
A second fan provided in the second fan unit and driven by a second fan motor; And
And a third fan provided in the flow switching device and driven by a third fan motor,
When the amount of change in the battery output current value is equal to or greater than a predetermined value when the at least one of the first fan, the second fan, and the third fan is driven by the power of the battery,
Wherein the control unit determines that at least one of the first fan, the second fan, and the third fan to be driven is in a fan lock state, and the relay unit cuts off the current of the battery. Cleaner. 3. The method of claim 2,
When the amount of change in the battery output current value is greater than or equal to a predetermined value when at least one of the first fan and the second fan and the third fan are driven by the power of the battery,
Wherein the control unit determines that the third fan is in a fan lock state and the relay unit cuts off the current of the battery output to the third fan motor. The method according to claim 1,
A first discharge unit formed on an upper portion of the first fan unit and a second discharge unit formed on an upper portion of the flow switching unit; And
And a third fan installed in the flow switching device so as to be exposed to the outside by the second discharge portion and to be driven by the third fan motor. 5. The method of claim 4,
When the amount of change of the battery output current value is greater than or equal to a predetermined value at the time of driving the third fan by the power of the battery,
Wherein the control unit determines that the third fan is in a fan lock state and the relay unit cuts off the current of the battery output to the third fan motor. 5. The method of claim 4,
Wherein an upper part of the flow switching device is provided in the form of a flat plate and a display part for displaying predetermined operation information together with the second discharging part is provided. The method according to claim 6,
When the amount of change of the battery output current value is greater than or equal to a predetermined value at the time of driving the third fan by the power of the battery,
Wherein the control unit determines that the foreign substance in the second discharging unit is to be removed from the display unit when it is determined that the foreign substance is charged into the second discharging unit. The method according to claim 1,
In the flow switching device,
A first gear provided for a first direction movement of the fluid switching device and driven by a first gear motor; And
And a second gear provided for a second direction movement different from the first direction of the flow switching device and driven by a second gear motor,
When the change amount of the battery output current value is equal to or greater than a predetermined value when the flow switching device is moved by the power of the battery,
Wherein the control unit determines that the flow switching device is in a fixed state, and the relay unit cuts off the current of the battery output to the first gear motor or the second gear motor. The method according to claim 1,
Further comprising a power supply unit connected to an external power supply,
Wherein the control unit drives at least one of the first blower unit, the second blower unit, and the flow switching unit by the power supply unit when the external power source is connected to charge the battery. Cleaner. A control method for an air cleaner having a battery and a plurality of devices driven by electric power of the battery,
When the air purifier is turned ON,
The power of the battery is output,
A power value output from the battery is measured,
Identifying a device driven by the battery among the plurality of devices,
Determines whether the measured power value is included in a range (normal range) of the output power value when the device driven by the battery is normally operated,
And when the measured power value is not included in the normal range, the power of the battery is cut off. 11. The method of claim 10,
In the plurality of apparatuses,
A first blower, a second blower installed above the first blower, and a flow switching device movably provided above the second blower,
Wherein the flow switching device is provided with a third fan which is exposed to the outside by a discharge port through which air is discharged. 12. The method of claim 11,
When the third fan is driven by the battery,
And when the amount of change of the measured power value is equal to or greater than a predetermined value, the power of the battery output to the third fan is cut off. 11. The method of claim 10,
Wherein the plurality of devices include a flow switching device movably provided by the power of the battery,
When the flow switching device is moved by the battery,
And when the amount of change in the measured power value is equal to or greater than a predetermined value, the power of the battery output to the flow switching device is cut off. 11. The method of claim 10,
Further comprising a power supply unit connected to an external power supply,
When the air purifier is turned ON,
Power is output by the power supply unit to drive the plurality of apparatuses,
And the power of the battery is charged by the power supply unit. 15. The method of claim 14,
An amount of current of the battery charged by the power supply unit is measured,
Determines whether the measured power value is included in a range of the input power value (normal range) when the measured power value is normally charged by the power supply unit,
And when the measured power value is not included in the normal range, charging of the battery is stopped and displayed.

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