KR101938647B1 - Air cleaning apparatus - Google Patents

Abstract

The present embodiment relates to an air purifier.
The air purifier according to the present embodiment includes a PCB device installed in an inner space of the partition plate of the first and second fan units.

Description

[0001]

The present invention relates to an air purifier.

The air purifier is understood to be an apparatus for sucking contaminated air to purify it, and then discharging the purified air. For example, the air cleaner may include a blowing device for introducing outside air into the interior of the air cleaner, and a filter capable of filtering dust and germs in the air.

Generally, an air purifier is configured to purify an interior space such as a home or office. According to the conventional air purifier, its capacity is limited, and there is a problem that purification of air in the entire indoor space is limited. Accordingly, the air around the air cleaner can be cleaned, while the air in the space far from the air cleaner is difficult to clean.

In order to solve this problem, there has been an effort to improve the performance of the fan provided in the air purifier. However, as the amount of air blown from the fan increases, the noise generated from the fan increases, thereby decreasing the reliability of the product.

Consequently, due to the limited capacity of the air cleaner, the user has to clean the air in the desired space while moving the air cleaner.

Regarding conventional air purifiers, the Applicant has disclosed the following prior art documents.

1. Public number (public date): KR10-2012-0071992 (July 3, 2012)

2. Title of the invention:

According to the above prior art, the main body of the air cleaner is provided with an air purifying part such as a fan and a filter inside a case having a substantially rectangular parallelepiped shape. The air intake port is formed in the side portion and the lower portion of the main body of the air cleaner, and the air outlet port is formed in the upper portion of the main body.

According to such a constitution, contaminated air is sucked from the air cleaner in a limited direction, that is, from the side and the lower side, so that the suction capacity is reduced. Further, the corner portion of the case having a rectangular parallelepiped shape acts as a structural resistance which hinders the suction of air.

In addition, since the purified air inside the air cleaner is discharged only in one direction, that is, upward, the air around the air cleaner can be purified, but the purified air can not flow from the air cleaner to a space far from the air cleaner, The air cleaning function is limited.

Further, since only one blowing fan is provided inside the main body of the air cleaner, there is a problem that the blowing capacity is limited.

An object of the present invention is to provide an air cleaner capable of improving the suction capacity of the air sucked into the air cleaner in order to solve the above problems.

Particularly, a suction flow path from the circumferential direction of the air purifier to the inside of the air purifier and a suction flow path through the upper and lower portions of the air purifier are included, so that even if the inner chamber is sitting or standing, And an object thereof is to provide an air purifier.

It is also an object of the present invention to provide an air cleaner that allows air discharged from an air cleaner to be discharged in various directions and reach a long distance. In particular, it is an object of the present invention to provide an air cleaner capable of easily discharging air toward the peripheral space even when the inside air chamber is seated or standing with the discharge air stream being easily generated upwardly, forwardly and laterally with respect to the air cleaner do.

Another object of the present invention is to provide an air cleaner which can easily guide the air discharged from the air cleaner to the outside of the air cleaner and prevent the discharged air from flowing back into the air cleaner. In particular, it is an object of the present invention to provide an air cleaner capable of preventing the air discharged from the first air blowing device from flowing back into the second air blowing device.

It is another object of the present invention to provide an installation position of a PCB device provided for controlling the operation of an air cleaner and to provide an air cleaner which improves space utilization.

Another object of the present invention is to provide an air cleaner having increased air flow capacity.

Another object of the present invention is to provide an air cleaner provided with an air guide device so that the air passing through the centrifugal fan can easily flow upward toward the discharge part when the centrifugal fan is used to increase the ventilation capacity .

It is also an object of the present invention to provide an air cleaner that improves the filter's purifying ability and facilitates replacement of the filter.

Another object of the present invention is to provide an air cleaner in which a filter can be easily installed without providing a separate installation space for installing the filter inside the air cleaner.

The air purifier according to the present embodiment includes a PCB device installed in an inner space of the partition plate of the first and second fan units.

The partition plate separates the first fan unit and the second fan unit from each other in the vertical direction.

The PCB device is installed in the inner central space of the air cleaner.

The first and second space portions of the partition plate, the third space portion of the second air guide device, the fourth space portion of the first discharge guide device, and the fifth space portion of the lever support device are vertically aligned.

The PCB device is installed in the first to fifth spaces.

The PCB device includes first and second PCBs arranged in a radial direction.

The PCB device includes a PCB support portion extending in the vertical direction, and the first and second PCBs are provided on both sides of the PCB support portion.

The PCB unit further includes a support plate provided on the PCB support unit and supported by at least a part of the second blower unit.

The support plate may be supported by the lever support device.

The support plate may include an assembly guide placed in the groove of the lever support device.

The lever support apparatus includes an annular lever support body and a support protrusion protruding from the lever support body, and the recess is depressed downward from an upper end of the support protrusion.

The support plate includes a gripping portion capable of gripping by a user.

The PCB device includes a power supply unit, a case of a non-combustible material surrounding the power supply unit, and an insulating member disposed between the power supply unit and the case.

According to the present embodiment, since the suction portion is formed along the outer circumferential surface of the cylindrical case, the suction capacity can be improved, and structural resistance of the case is not generated during the suction of the air.

Particularly, the suction portion includes a plurality of through holes, and the plurality of through holes can be uniformly formed over the entire outer circumferential surface of the case. Therefore, a suction flow path toward the inside of the air cleaner in the direction of 360 degrees with respect to the air cleaner . As a result, the suction area of the air can be increased, and even if the inner chamber is sitting or standing, the air around the room can be sucked sufficiently.

The suction portion includes a first suction portion provided in the first case, a third suction portion provided in the second case, and a second suction portion provided on the base side so as to extend in the axial direction As shown in FIG. Accordingly, the air present in the lower portion of the indoor space and the air in the indoor space existing at a relatively higher position can be sucked into the air cleaner based on the air cleaner, so that the suction capacity of the indoor space can be increased.

Further, the upward discharge of air can be guided through the second blower, and the forward discharge of air can be guided by the flow switching device provided above the second blower. In the course of the rotation of the flow switching device, the discharge in the left and right direction of the air can be guided. As a result, air discharge is guided in various directions on the basis of the air cleaner, and a discharge airflow can be formed to a great distance from the air cleaner, so that the air cleaning function of the indoor space can be improved. Further, even if the inner chamber is sitting or standing, there is an advantage that the discharge airflow can be easily generated toward the peripheral space.

Further, the second blowing device is disposed on the upper side of the first blowing device, the partition plate is provided between the first and second blowing devices, and the air blown out from the first blowing device is radially outward So that it is possible to prevent the air discharged from the first blower unit from being re-introduced into the second blower unit.

In addition, since the PCB device is provided at the inner center portion of the air cleaner, and it is not necessary to provide a separate space for installing the PCB device, space utilization of the air cleaner can be improved.

Particularly, the PCB device is located in the inner space portion of the second air guide device, the first discharge guide device, the partition plate, and the lever support device, and space utilization can be improved.

Since the PCB device can be installed in the divided spaces of the first and second fan units, the PCB unit is installed in the first fan unit in the process of assembling the air purifier, and then the filter unit of the second fan unit is assembled, There is an advantage that a simple assembly process of the air purifier can be performed.

Also, in the PCB device, the power supply and the main PCB are installed on both sides of the PCB support plate, and the parts of the PCB device are arranged in the lateral direction or the radial direction, so that the vertical length of the PCB device is reduced and the overall volume of the PCB device is reduced Can be effective.

In addition, among the PCB devices, the power supply unit for generating relatively high heat is provided with a plurality of cases made of a nonflammable material, so that the heat generated from the power PCB of the power supply unit is prevented from being transmitted to the internal components of the air cleaner So that the fire of the air cleaner can be prevented from occurring.

In addition, an insulating member may be provided on one side of the power supply unit to protect the power supply unit and to prevent a current leaked from the power supply unit from being transmitted to other components.

In addition, since the PCB device includes the communication module, the application can be downloaded from the external device, and the application can be utilized as information for operating the air cleaner.

In addition, the PCB device is provided with an assembly guide, so that the PCB device can be stably fixed to the air cleaner.

In addition, since a display device showing air cleanliness can be disposed between the first and second plates, it is easy to intuitively recognize the user.

Further, since a plurality of air blowing devices are provided, there is an advantage that the air blowing capacity of the air cleaner can be improved.

In addition, since the centrifugal fan for increasing the blowing capacity of the air cleaner and the air guide device disposed at the outlet side of the centrifugal fan are provided, the air flowing in the radial direction through the centrifugal fan is easily guided upward .

Also, it is possible to prevent the phenomenon that independent air flows are generated through the first and second air blowing apparatuses to interfere with each other, thereby improving the air flow performance.

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 .

Further, since the filter member can slide in the radial direction toward the filter frame, there is an advantage that the filter member can be easily engaged or separated.

Further, since the air blowing fan includes the turbo fan which sucks the air in the axial direction and discharges the air in the radial direction, the air flow rate can be increased.

Further, since the air guide device having the guide ribs is included at the outlet side of the turbo fan, the flow loss can be reduced and the noise can be reduced.

In addition, since the protrusion is provided on the guide rib, it is possible to reduce the generation of vortices and smooth air flow toward the discharge portion.

Further, since a flow switching device for switching the air flow to one side of the air blowing device is provided and air can be discharged toward the front, the air discharged from the air cleaner can be discharged to a long distance.

1 is a perspective view showing an appearance of an air cleaner according to an embodiment of the present invention.
2 is a perspective view showing the internal structure of the air cleaner according to the embodiment of the present invention.
3 is a cross-sectional view taken along line III-III 'of FIG.
4 is an exploded perspective view showing a configuration of a first fan unit according to an embodiment of the present invention.
5 is an exploded perspective view showing a configuration of a first fan and a first air guide device according to an embodiment of the present invention.
6 is a perspective view showing a configuration of a guide rib according to an embodiment of the present invention.
7 is a cross-sectional view showing a part of the air purifier according to the embodiment of the present invention.
FIG. 8 is a perspective view illustrating a configuration of a partition plate and a partition plate according to an embodiment of the present invention. FIG.
FIG. 9 is an exploded perspective view showing a structure that is coupled to the partition plate and the partition plate according to the embodiment of the present invention.
10 is a view showing a PCB device installed in an internal space of an air cleaner according to an embodiment of the present invention.
FIG. 11 is an exploded perspective view showing a configuration of a part of an air cleaner and a configuration of a PCB device according to an embodiment of the present invention.
12 is a view showing a configuration of a lever supporting apparatus of an air cleaner according to an embodiment of the present invention.
13 is a perspective view showing a configuration of a PCB device according to an embodiment of the present invention.
14 and 15 are exploded perspective views illustrating a configuration of a PCB device according to an embodiment of the present invention.
16 to 18 are views showing the air flow in the air cleaner according to the 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 the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the difference that the embodiments of the present invention are not conclusive.

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;

1 is a perspective 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 includes an air blowing device 100, 200 for generating an air flow, and a flow switching device 100 for switching the discharge direction of the air flow generated in the air blowing device 100, Apparatus 300 is included.

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 case 101, 201 includes a first case 101 forming an outer appearance of the first fan unit 100. 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. A hooking device may be provided on the part where the second parts are coupled, that is, on the opposite side of the hinge part. 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. 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.

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. [ Define the direction. 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 the center axial direction of the first fan 160 and the second fan 260, which will be described later, that is, the motor axial direction of 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.

The first fan unit 100 further includes a base 20 provided below the first case 101 and placed on the ground. 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.

The air sucked through the base suction unit 103 can be flowed upward through the suction port 112 of the suction grill 110 (see FIG. 2) provided on the upper side of the base 20.

That is, the first fan unit 100 includes a plurality of suction units 102 and 103. The air present in the lower portion 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 first discharge portion 105 may be formed in the first discharge grille 195 of the first discharge guide device 190 (see FIG. 2) provided in the first fan device 100. The first discharge guide device 190 forms an upper end outer appearance of the first fan unit 100. The air discharged through the first discharge portion 105 may flow upward in the axial direction.

The case (101, 201) includes a second case (201) forming an outer appearance of the second fan unit (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, in view of the overall shape of the cases 101 and 201, the bottom cross-sectional areas of the cases 101 and 201 are formed larger than the upper cross-sectional area, so that the air cleaner 10 can be stably supported on the ground.

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.

The air sucked through the second suction portion 202 can flow in a substantially radial direction from the outer circumferential surface of the second case 201. [

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.

The flow switching device 300 may be installed above the second blowing device 200. 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 passage of the flow switching device 300 and can be discharged to the outside through the second discharging unit 305. The second discharge portion 305 is formed at the upper end of the flow switching device 300.

The flow switching device 300 may be movably installed. Specifically, the flow switching device 300 may be in a lying state (first position), as shown in Fig. 1, or in a slanted state (second position), as shown in Fig. 18 have.

A display device 600 for displaying operation information of the air purifier 10 is provided on the flow switching device 300. The display device 600 may move with the flow switching device 300.

3 is a cross-sectional view taken along the line III-III 'of FIG. 2, FIG. 4 is a cross-sectional view of the air cleaner according to the embodiment of the present invention, FIG. 5 is an exploded perspective view showing a configuration of a first fan and a first guide device according to an embodiment of the present invention, and FIG. 6 is a perspective view illustrating a configuration of a guide rib according to an embodiment of the present invention. It is a perspective view showing.

2 to 6, 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.

The base 20 includes a base body 21 placed on the ground and a base protrusion 22 protruding upward from the base body 21 and on which the suction grill 110 is placed. The base protrusions 22 may be provided on both sides of the base 20.

By the base projection 22, the base body 21 and the suction grill 110 are spaced from each other. Between the base 20 and the suction grill 110, a base suction part 103 for forming an air suction space is formed.

The suction grill 110 includes a substantially ring-shaped grill body 111 and a rim portion 111a protruding upward from the 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 rim portion 111a.

The suction grill 110 includes a suction unit 112 formed on the rim 111a. The suction unit 112 is configured to protrude upward along the circumference of the rim 111a and may extend in the circumferential direction. 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.

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. The air that has passed through the plurality of suction holes 112a may pass through the outer circumferential surface of the cylindrical first filter member 120 and may enter the interior thereof.

The suction grill 110 further includes a movement guide part 113 protruding upward from the upper surface of the grill body 111 and guiding the upward or downward movement of the first filter member 120. The movement guide part 113 may be configured to have a shape gradually protruding from the upper surface of the grill body 111 in the circumferential direction. That is, the movement guide portion 113 may have an inclined surface that protrudes in the circumferential direction.

The movement guide portions 113 may be spaced apart in the circumferential direction to provide a plurality of movement guide portions 113. For example, as shown in FIG. 4, four movement guide portions 113 may be provided. However, the number of the movement guide portions 113 is not limited to this.

The grill main body 111 further includes a groove portion 114 for providing a space through which the handle 144, which will be described later, can move. The groove 113 constitutes at least a part of the grill body 111 and can be understood as a portion of the rim of the grill body 111 where the suction portion 112 is not formed.

The first fan unit 100 is provided with a lever device 142 provided above the suction grill 110 and operable by a user. The lever device 142 may be rotatable in a circumferential direction.

The lever device 142 includes a lever body 143 having a substantially ring shape and being rotatably provided. The lever body 143 is formed with a plurality of cutouts 145 disposed at positions corresponding to the plurality of movement guide sections 113. The plurality of cutouts 145 can be understood as through-holes formed in the lever body 143.

The plurality of cutouts 145 are spaced apart from one another and arranged in the circumferential direction of the lever body 143. Each cutout portion 145 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 143.

The lever device 142 is supported on the upper surface of the grill body 111. When the lever device 142 is supported by the grill main body 111, the plurality of movement guide parts 113 may be inserted into the plurality of cutouts 145. In detail, the plurality of movement guide portions 113 may protrude upward from the plurality of cutouts 145 through the plurality of cutouts 145.

The length of each cutout portion 145 may be longer than the length of the movement guide portion 113. Therefore, in a state in which the movement guide portion 113 is inserted into the cut-out portion 145, the lever device 142 can be rotated. One end portion of the movement guide portion 113 may interfere with one end portion of the cutout portion 145 while the lever device 142 rotates in one direction, The other end of the guide part 113 may interfere with the other end of the cutout part 145.

On the outer peripheral surface of the lever body 143, a second handle 144 is provided.

Above the lever device 142, a supporting device 140 for supporting the first filter member 120 is provided. The supporting device 140 includes a first handle 141 coupled to the second handle 144. The user can grasp the first and second handles 141 and 144 to rotate the lever body 143 and the support device 140 clockwise or counterclockwise.

The lever device 142 supports the lower surface of the support device 140. The support device 140 may be provided with a support protrusion (not shown) that contacts the movement guide unit 113. The support protrusion may protrude downward from a lower surface of the support device 140 and may be provided at a position corresponding to the movement guide part 113. The shape of the support protrusion corresponds to the shape of the movement guide part 113 and includes an inclined surface formed to protrude gradually in the circumferential direction.

The direction in which the movement guide part 113 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 movement guide portion 113 is configured to be gradually protruded, the direction in which the support protrusion gradually protrudes may be a clockwise direction.

The support protrusion may be disposed at a position corresponding to the cutout portion 145. That is, the movement guide portion 113 and the support protrusion may be disposed at a position where they are inserted into the cutout portion 145.

The lever device 142 and the support device 140 may be rotated together. In this rotation process, the movement guide portion 113 and the support protrusion can be interfered with each other. Specifically, when the lower portion of the support projection and the upper portion of the movement guide portion 113 are in contact with each other, the lever device 142 and the support device 140 are lifted upward. The first filter member 120 supported by the support device 140 is coupled to the first fan unit 100 while moving upward.

When the upper part of the support protrusion and the lower part of the movement guide part 113 come into contact with each other or when the interference between the support protrusion part and the movement guide part 113 is released, the lever device 142 and the support device 140, Comes down. The first filter member 120 supported by the support device 140 is in a detachable state (released state) from the first fan unit 100.

The first filter member 120 may have a cylindrical shape with an open top. The first filter member 120 includes a filter body 121 having a hollow cylindrical filter portion and a filter hole 122 formed at an upper end of the filter body 121. A filter grasping portion 121a is provided at an upper portion or a lower portion of the filter main body 121. Air flows into the filter body 121 through the outer circumferential surface of the filter body 121 and can be discharged from the first filter member 120 through the filter hole 122.

The first fan unit 100 further includes a first filter frame 130 that forms a mounting space for the first filter member 120. The first filter frame 130 includes a first frame 131 forming a lower portion of the first filter frame 130 and a second frame 132 forming an upper portion of the first filter frame 130. [ ).

The first frame 131 includes a frame depression 131a having a downwardly recessed shape. The frame depression 131a may be configured such that at least a portion of the first frame 131 is recessed. The frame depression 131a may be formed at a position corresponding to the groove 114 of the suction grill 110. The groove 114 and the frame depression 131a provide a space through which the first and second handles 141 and 144 can move. The first and second handles 141 and 144 are located in the space and can be rotated clockwise or counterclockwise.

The second frame 132 is spaced upward from the first frame 131. The second frame 132 has a substantially ring shape. The ring-shaped inner space of the second frame 132 forms at least a part of the air passage passing through the first filter frame 130. The upper portion of the second frame 132 may support the first fan housing 150, which will be described later.

The first filter frame 130 further includes a first filter support 135 extending upward from the first frame 131 toward the second frame 132. The first and second frames 131 and 132 may be spaced apart from each other by the first filter supporting unit 135. 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 sensor device 137 may be installed in the first filter frame 130. The sensor device 137 may include a dust sensor for detecting the amount of dust in the air and a gas sensor for detecting the amount of air in the air. 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.

In other words, when the first and second handles 141 and 144 are operated while the first filter member 120 is placed on the upper surface of the supporting device 140, the first filter member 120 moves downward Off position. Then, the first filter member 120 is slid radially outward, and can be separated from the mounting space.

On the other hand, the first filter member 120 is slid radially inward toward the mounting space, separated from the mounting space, and supported on the upper surface of the supporting device 140, 144 can be brought into close contact with each other. At this time, the first filter member 120 is positioned at the coupling position to the first fan unit 100.

On the other hand, a first support cover 136 may be coupled to the outside of the first filter support 135.

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 150 is detached, the user can prevent the user from putting his or her fingers into the first fan housing 150 have.

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

The sensor device 137 and the ionizer 158 may be installed in the second blower 200, which will be described later. As another example, the sensor device 137 and the ionizer 158 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 the axial direction and discharging air upward in the radial direction.

The first fan 160 includes a hub 161 to which a rotary shaft 165a of a first fan motor 165 as a centrifugal fan motor is coupled and a shroud 162 disposed to be spaced apart from the hub 161 And a plurality of blades 163 disposed between the hub 161 and the shroud 162. 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 a shaft coupling portion 161a to which the rotation shaft 165a is coupled and a first blade coupling portion 161b that extends upward from the shaft coupling portion and extends obliquely.

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

One surface of the blade 163 is coupled to the first blade coupling portion 161b of the hub 161 and the other surface of the blade 163 is coupled to the second blade coupling portion 162b 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 blade 163 includes a leading edge 163a forming a side end to which air flows and a trailing edge 163b forming a side end to which air flows.

The air passing through the first filter member 120 flows upward into the first fan housing 150 through the first fan inlet 151. The air flows in the axial direction of the first fan 160 and flows into the first leading edge 163a and flows to the trailing edge 163b via the blade 163. [

At this time, the trailing edge 163b is inclined outwardly upward in the axial direction in correspondence with the flow direction of the air so that the air flowing out through the trailing edge 163b can flow upward in the radial direction .

Referring to FIG. 5, the first fan unit 100 includes a first air guide device (not shown) coupled to an upper side of the first fan 160 to guide the flow of air that has passed through the first fan 160 170).

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 172a through which air flows is formed.

The first air guide device 170 includes a guide rib 175 disposed in the first air passage 172a. 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 172a 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.

Referring to FIG. 6, the guide rib 175 includes a rib body 175a extending upward in a rounded manner. The rib main body 175a includes a static pressure surface 175b forming a surface in which air flows and a negative pressure surface 175c forming an opposite surface of the static pressure surface 175b. The positive pressure surface 175b is concave and the negative pressure surface 175c is convex.

The rib main body 175a includes a leading edge 175d forming a side end portion into which air flows and a trailing edge 175e forming a side end portion through which air is discharged.

The leading edge 175d is formed to be rounded from the static pressure surface 175b toward the negative pressure surface 175c. With this configuration, some of the air introduced through the leading edge 175d can be guided by the static pressure surface 175b, and the remaining air can be guided by the negative pressure surface 175c. The air flowing to the negative pressure surface 175c passes through the plurality of protrusions 175f.

The plurality of protrusions 175f protrude from the negative pressure surface 175c and extend from the leading edge 175d toward the trailing edge 175e. The protrusion 175f has an airfoil shape in which the height protruding from the leading edge 175d toward the trailing edge 175e is reduced.

The plurality of protrusions 175f are formed on the negative pressure surface 175c to prevent vortices from being generated on the negative pressure surface 175c and the air can easily flow upward.

On the other hand, the trailing edge 175e may have a saw-tooth shape in which the crests and valleys are repeated in the radial direction. With this configuration, there is a time difference in the air flowing out from the trailing edge 175e, that is, air from the mountain and the valley, and noise generation is reduced.

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

The first fan motor 165 can be supported on the upper side of the motor receiving portion 173. The rotary shaft 165a of the first fan motor 165 extends downward from the first fan motor 165 and extends through the bottom of the motor receiving portion 173, And may be coupled to the portion 161a.

A motor coupling portion 166 is provided on the upper side of the first fan motor 165 and the motor coupling portion 166 connects the first fan motor 165 to the first air guide device 170 Guide it to be fixed.

FIG. 7 is a cross-sectional view showing a part of the air purifier according to the embodiment of the present invention, FIG. 8 is a perspective view showing a configuration of being coupled to the partition plate and the partition plate according to the embodiment of the present invention, FIG. 5 is an exploded perspective view showing a configuration in which the partition plate is coupled to the partition plate according to the embodiment of FIG.

7 to 9, a first air blowing apparatus 100 according to an embodiment of the present invention is coupled to an upper side of the first air guide apparatus 170 and passes through the first air guide apparatus 170 And a second air guide device 180 for guiding one air to the first discharge guide device 190.

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 flow path 185 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 172a of the first air guide device 170 passes through the second air passage 185 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 185.

A lower portion of the second guide wall 182 is provided with a fastening guide 183 to be engaged with the first air guide device 170. The fastening guide 183 may extend below the second guide wall 182.

A predetermined fastening member is coupled to the fastening guide 183, and the fastening member can be coupled to the fastening rib 178 of the first air guiding device 170. The coupling rib 178 may be formed to protrude upward from the upper surface of the motor receiving portion 173. A plurality of the fastening guides 183 and the fastening ribs 178 may be provided.

The second air guide device 180 further includes a wallpaper support portion 187 extending from the inner circumferential surface of the first guide wall 181 to the outer circumferential surface of the second guide wall 182. The first and second guide walls 181 and 182 can be stably coupled by the wallpaper support portion 187. A plurality of the wallpaper support portions 187 are provided. For example, the plurality of wallpaper segments 187 may include four wallpaper segments 187 extending in four directions. The first eject guide unit 190 may be supported by the plurality of wallpaper support units 187.

A third space 184 is formed in the inside of the second guide wall 182 having a cylindrical shape and penetrating in the vertical direction to receive at least a part of the PCB device 500. The PCB device includes a power supply unit 520 and a main PCB 511.

The power supply unit 520 is a device for supplying power to a plurality of components in the main PCB 511 and the air purifier 10 by receiving a commercial power supplied from a power supply line connected to the air cleaner 10, . The power supply unit 520 may include an AC power PCB (power PCB).

The main PCB 511 may include a PCB for a DC power source driven by the DC voltage converted from the AC power source PCB.

The PCB device 500 further includes a PCB support plate 525 for supporting the power supply unit 520 and the main PCB 511. The main PCB 511 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 PCB device includes a communication module 515 through which the air purifier 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 511.

The second air guide device 180 includes a bent portion 186 extending outward from the upper portion of the first guide wall 181. The bent portion 186 is configured to extend radially outward from the upper end of the first guide wall 181 and to bend downward. For example, the bent portion 186 may have a substantially elliptical shape.

The first air blowing apparatus 100 is disposed at an outlet side of an air flow passing through the second air guide apparatus 180 on the upper side of the second air guide apparatus 180, And a first discharge guide device 190 for guiding the air discharge to the outside of the air cleaner 10.

The first discharge guide device 190 includes a first discharge main body 191 having a fourth space portion 194 formed substantially vertically through the center portion thereof. For example, the first discharge main body 191 may have an annular shape.

At least a portion of the PCB device 500 may be received in the fourth space portion 194. The fourth space part 194 is formed on the third space part 184 and forms an installation space for installing the PCB device 500 together with the third space part 184.

The first discharge main body 191 includes a first discharge grill 195. The first discharge grill 195 may extend radially outward from the inner circumferential surface of the first discharge main body 191 toward the outer circumferential surface.

The first discharge grill 195 is provided with a plurality of first discharge grills 195 and a first discharge portion 105 through which air can be discharged to the outside is formed between the plurality of first discharge grilles 195. The plurality of first discharge grilles 195 are disposed on the upper side of the second air passage 185 and the air having passed through the second air passage 185 flows toward the first discharge grill 195, And may be discharged through the first discharge portion 105.

The second fan unit 200 includes a second filter member 220, a support device for supporting the lower portion of the second filter member 220, and a lever device 242 provided below the support device do. Since the supporting device has the same configuration as that of the supporting device 140 provided in the first blower 100, the description related to the supporting device 140 is used.

The second blower further includes a lever support device 210 for supporting the second filter member 220 of the second blower 200 or the lever device. The lever support device 210 has a substantially annular shape. The lever supporting device 210 includes a fifth space 219 formed in a vertical direction and defining an installation space in which the PCB device 500 can be positioned. The fifth space 219 is formed at a substantially central portion of the lever supporting device 210.

The lever supporting device 210 includes a lever supporting body 211 having an annular shape. The lever supporting body 211 extends upward from the inner circumferential surface thereof toward the outer circumferential surface thereof in a slightly inclined manner with respect to the axial direction. That is, the surface constituting the lever supporting body 211 constitutes an inclined surface. The space between the inclined surface and the upper surface of the partition plate 430, which will be described later, provides a space portion where the user's hand can be located.

The lever support main body 211 blocks the air discharged through the first discharge portion 105 of the first fan unit 100 from flowing into the second fan unit 200, It may also be called a "blocker."

The lever support apparatus 210 further includes a movement guide unit 215 protruding upward from the lever support body 211. Since the movement guide unit 215 has the same configuration as the movement guide unit 113 of the first fan unit 100, the description of the movement guide unit 113 is used. For convenience of explanation, the movement guide portion 113 is referred to as a " first movement guide portion ", and the movement guide portion 215 is referred to as a "second movement guide portion ".

The lever support apparatus 210 further includes a support protrusion 212 protruding upward from an inner circumferential surface of the lever support body 211. The support bracket 212 supports the lever device 242 (see FIG. 11) of the second blower 200. As shown in FIG.

A partitioning device 400 is provided between the first fan unit 100 and the second fan unit 200. The partitioning device 400 includes a partition plate 430 for separating or blocking the air flow generated in the first fan unit 100 and the air flow generated in the second fan unit 200 . The first and second fan units 100 and 200 may be spaced apart 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 located at the lower end of the spacing space and the lever support unit 210 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 understood as a first space portion that passes 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. [ The upper space constitutes a second space portion as a gripping space in which a user can 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.

The partition plate 430 includes a first plate 440 and a second plate 450 coupled to the first plate 440. The second plate 450 is provided on the upper side of the first plate 440. The first plate 440 may extend upward to be rounded, and the second plate 450 may extend downward toward the bottom.

The first plate 440 includes a plate inner wall 441 having a substantially annular shape and a plate outer wall 443 disposed to surround the plate inner wall 441. At the center of the plate inner wall 441, a first space 449 penetrating in the vertical direction is formed. The first space 449 provides an installation space in which at least a part of the PCB device 500 is located.

The plate outer wall 443 is configured to extend radially outward from the plate inner wall 441. More specifically, the first plate 440 further includes a wall connection portion extending radially between a lower end of the plate inner wall 441 and a lower end of the plate outer wall 443.

The plate outer wall 443 may extend upwardly from the wall connection portion 442a. In one example, at least a portion of the plate outer wall 443 constitutes a curved portion having a predetermined radius of curvature.

The first plate 440 further includes a depression 442 defining a space between the plate inner wall 441 and the plate outer wall 443. The depressed portion 442 may be configured to be depressed downward from a space between an upper end of the plate inner wall 441 and an upper end of the plate outer wall 443.

The first plate 440 further includes a first engaging portion 449a coupled to the second air guide device 180. The first engaging portion 449a may be provided on the inner circumferential surface of the plate inner wall 441. The first engaging portion 449a may be coupled to the second engaging portion 188 of the second air guiding device 180. The second coupling portion 188 may be provided on the inner circumferential surface of the second guide wall 182.

The partition plate 430 may be provided with a display device 460 on which information related to the operation of the air cleaner 10 is displayed. In one example, the information may include information on air pollution degree or air cleanliness degree.

In detail, the display device 460 may be installed in a space between the first plate 440 and the second plate 450. In the first plate 440, a device seating portion 445 on which the display device 460 is placed is formed. The device seating portion 445 may be formed on the upper surface of the plate outer wall 443.

In the display device 460, an illumination source 462 is included. The illumination source 462 is installed in the illumination support portion 461. The illumination support portion 461 includes a mounting groove into which the illumination source 462 is inserted.

In detail, the light source 462 may include an LED. The display device 460 further includes a diffusion unit 446 disposed on one side of the illumination source 462 and adapted to diffuse the light emitted from the illumination source 462.

The display device 460 is provided with at least one side of the diffusion part 446 and reflects the light so as to focus the light diffused through the diffusion part 446 to the outer peripheral surface of the partition plate 430. [ Reflection plate 447 is further included. For example, the reflection plate 447 may be provided on the upper side and the lower side of the diffusion unit 446, respectively. According to this configuration, the light emitted from the illumination source 462 is concentrated by the reflection plate 447 to the diffusion unit 446, and can be converted into the light that is transmitted through the diffusion unit 446 .

The second plate 450 includes a second plate body 451 having a substantially annular shape. The second plate 450 further includes a plate seating part 455 protruding radially inward from the inner circumferential surface of the second plate body 451. The plate seating part 455 is configured to be depressed downward from the upper end of the second plate body 451 and can support the lever supporting device 210.

At the central portion of the plate seating portion 455, a second space portion 459 penetrating in the vertical direction is formed. The second space portion 459 provides an installation space in which at least a part of the PCB device 500 is located. The second space portion 459 may be arranged on the lower side of the fifth space portion 219. The first to fifth space portions 449, 459, 184, 194, and 219 are arranged so as to communicate with each other in the vertical direction to provide an installation space for the PCB device 500.

The first and second space portions 449 and 459 may have a shape of a through hole formed by passing through the upper and lower portions of the partition plate 430, and may be referred to as a "partition plate hole portion ".

The second plate body 451 may extend obliquely outwardly in the radial direction. In detail, the second plate body 451 includes an inclined surface 453 extending downward from the inner circumferential surface of the second plate body 451 toward the outer circumferential surface. For example, the inclined surface 453 has a round surface that extends in a rounded manner.

A second space portion may be formed between the bottom surface of the lever supporting body 211 and the inclined surface 453. [ The second space portion may be referred to as a "holding space portion ".

FIG. 10 is a view showing a PCB device installed in an internal space of an air cleaner according to an embodiment of the present invention, FIG. 11 is an exploded perspective view showing a configuration of a part of the air cleaner according to the embodiment of the present invention, And FIG. 12 is a view showing a configuration of a lever supporting apparatus of an air cleaner according to an embodiment of the present invention.

10 to 12, the second fan unit 200 according to the embodiment of the present invention further includes a second filter frame 230 that forms a mounting space for the second filter member 220. In detail, the second filter frame 230 includes a second frame 231 forming a lower portion of the second filter frame 130 and a second frame 232 forming an upper portion of the second filter frame 230 ).

The second filter frame 230 further includes a second filter support portion 235 extending upward from the first frame 231 toward the second frame 232. The first and second frames 131 and 132 may be spaced apart from each other by the second filter support part 235. The mounting space of the first filter member 120 is defined by the first and second frames 231 and 232 and the plurality of second filter supports 135.

A sensor device 237 may be installed in the second filter frame 230. The sensor device 237 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. The dust sensor and the gas sensor may be arranged to be supported by the second frame 232 of the first filter frame 230.

On the other hand, a second support cover 236 may be coupled to the outside of the second filter support 235.

The PCB device 500 according to the embodiment of the present invention may be installed in the inner central space of the air cleaner 10.

In detail, the PCB device 500 may be positioned to be inserted into the first to fifth space portions 449, 459, 184, 194, and 219. The upper surface of the PCB device 500 may be positioned at substantially the same height as the upper surface of the lever supporting device 210. The PCB device 500 includes the lever supporting device 210 and the first and second plates 440 and 450 of the partition plate 430 and the first discharge guide device 190 and the second air guide device 180, it is not necessary to provide a separate space for installing the PCB device 500, and space utilization of the air cleaner can be improved.

The first to fifth space portions 449, 459, 184, 194 and 219 constitute the first and second plates 440 and 450 of the lever supporting device 210, the partition plate 430, the first discharge guide device 190, The guide device 180 may have an annular shape.

The PCB device 500 is supported by the lever support device 210 and extends downward. A lever device 242 is provided on the upper side of the PCB device 500. The lever device 242 may be disposed to cover at least a portion of the PCB device 500, i.e., the first assembly guide 543 (see FIG. 13). That is, the first assembly guide 543 is placed in the first groove 213 of the lever support device 210, and the lever device 242 is positioned above the first assembly guide 543 .

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 215. 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. A second handle 244 is provided on the outer circumferential surface of the lever body 243.

The lever supporting device 210 includes a lever supporting body 211 having a substantially annular shape forming a fifth space 219. The lever support apparatus 210 further includes a movement guide unit 215 protruding upward from the lever support body 211.

The lever support apparatus 210 further includes a support protrusion 212 protruding upward from an inner circumferential surface of the lever support body 211. The support jaw 212 may have a substantially annular shape and supports a lever device 242 (see FIG. 11) of the second fan apparatus 200.

A first groove 213 is formed in the support step 212. The first groove 213 is configured to be depressed downward from the upper end of the support step 212. The first groove 213 may be configured to support a first assembly guide 543 of the PCB device 500. The first groove 213 may be referred to as a "first support groove ". A plurality of the first grooves 213 may be spaced apart from each other in correspondence with the number of the first assembly guides 543.

A second groove (214) is formed in the support step (212). The second groove 214 is configured to be depressed downward from the upper end of the support step 212. The second groove 214 may be configured to support a second assembly guide 544 of the PCB device 500. The second groove 214 may be referred to as a "first support groove ".

A third groove 217 is formed in the support step 212. The third groove 217 may be configured to be depressed downward from the upper end of the support step 212 and have a cross-sectional shape. The third groove 217 may be configured to allow an electric wire extending to the PCB device 500 or an electric wire extending from the PCB device 500 to pass through. The third groove 217 may be referred to as a "third support groove ". A plurality of the third grooves 217 may be formed.

The support step 212 includes a first depression 216 for supporting the PCB device 500. The first depressed portion 216 may be configured such that an outer peripheral surface of the support step 212 is recessed radially inward. The first depression 216 may be disposed to align with the second depression 546 of the PCB device 500. The first depression (216) is positioned outside the second depression (546) to support the PCB device (500) and prevent movement of the PCB device. A plurality of the first depressions 216 may be formed corresponding to the number of the second depressions 546.

FIG. 13 is a perspective view showing a configuration of a PCB device according to an embodiment of the present invention, and FIGS. 14 and 15 are exploded perspective views showing a configuration of a PCB device according to an embodiment of the present invention.

Referring to FIGS. 13 to 15, a PCB 500 according to an embodiment of the present invention includes a main PCB 511 and a power supply unit 520. The PCB unit 500 further includes a case assembly 530 configured to surround the power supply unit 520.

The power supply unit 520 may be connected to the power cord of the air cleaner 10 by a harness. The power supply unit 520 and the main PCB 511 may be connected to each other by another electric wire.

The power supply unit 520 includes an AC power PCB (Power PCB), and the main PCB 511 may include a DC power PCB. The AC power supply PCB may be referred to as a " first PCB "and the DC power supply PCB may be referred to as a" second PCB ".

The PCB unit 500 further includes a PCB support unit 525 on which the main PCB 511 and the power supply unit 520 are installed. The main PCB 511 may be installed on one side of the PCB support part 525 and the power supply part 520 may be installed on the other side of the PCB support part 525. One surface and the other surface of the PCB support portion 525 form opposite surfaces. For example, the one surface may be the right side and the other side may be the left side.

As such, the main PCB 511 and the power supply unit 520 may be aligned in the radial direction or the transverse direction with respect to the PCB support unit 525. [ With such an arrangement, the PCB device 500 may not have a long vertical length, and the entire apparatus may be made compact.

The PCB device further includes a communication module 515. For example, the communication module 515 may include a Wi-Fi module. The communication module 515 is supported on one side of the PCB support part 525 and may be disposed on the lower side of the main PCB 511.

A power supply unit 520 may be disposed on the left side of the PCB support unit 525 and a main PCB 511 and a communication module 515 may be installed on the right side thereof. According to this arrangement, the PCB device 500 can be stably supported in the air cleaner 10 because the components of the PCB device are arranged in a balanced manner on the left and right sides with respect to the PCB support part 525.

The PCB support part 525 includes a first support part 525a extending vertically and providing an engagement surface of the main PCB 511 and the power supply part 520 and a second support part 525b extending from the bottom of the first support part 525a in the radial direction And a second support portion 525b extending to the power supply portion 520 and the case assembly 530.

Since the combined weight of the power supply unit 520 and the case assembly 530 is relatively large, the power supply unit 520 and the case assembly 530 can be stably supported by the second support unit 525b .

The PCB support portion 525 further includes a case coupling portion 525c. The plate engaging portion 530a of the case assembly 530 can be engaged with the case engaging portion 525c. The case engaging portion 525c may protrude from the surface on which the power supply unit 520 and the case assembly 530 are installed.

The PCB support part 525 further includes a PCB coupling part 525d. The main PCB 511 may be coupled to the PCB connector 525d. The PCB connecting portion 525d is configured to protrude from the surface on which the main PCB 511 is installed, and may include a plurality of PCB connecting portions 525d.

The PCB support portion 525 further includes a module support portion 525e. The communication module 515 can be supported on the module supporting portion 525e. The module support portion 525e may protrude from the surface on which the communication module 515 is installed and may be bent so as to surround the outer surface of the communication module 515. [

The PCB device 500 further includes a support plate 540 for supporting the PCB device 500 to the air cleaner 10. [ The support plate 540 may be provided on the upper side of the PCB support part 525.

The support plate 540 includes a plate body 541 having a substantially disk shape and a grip portion 542 that can be gripped by a user at a substantially central portion of the plate body 541. Two of the grip portions 542 may be spaced apart from each other.

The support plate 540 includes a first assembly guide 543 protruding downward from the plate body 541 to be placed in the first groove 213 of the lever support apparatus 210. A plurality of first assembly guides 543 may be provided on both sides of the support plate 540. The first assembly guide 543 may further protrude outwardly from the outer circumferential surface of the plate body 541.

The support plate 540 further includes a second assembly guide 544 that protrudes downward from the plate body 541 and is placed in the second groove 214 of the lever support apparatus 210.

The first and second assembling guides 543 and 544 allow the operator to easily assemble the PCB apparatus 500 to the lever supporting apparatus 210 and to prevent misassembly. In addition, the PCB device 500 can prevent relative movement with respect to the lever supporting device 210 by the first and second assembling guides 543 and 544 when the PCB device 500 is assembled.

The support plate 540 further includes a second depression 546 that is recessed from the outer circumferential surface of the plate body 541 by a predetermined depth in an inner radial direction. The second depression (546) is configured to align with the first depression (216) of the lever support device (210).

The first and second indentations 216 and 546 are disposed so as to interfere with each other in a state where the PCB device 500 is assembled to the lever support device 210. The phenomenon that the PCB device 500 moves, It is possible to prevent the device 500 from rotating unwantedly.

The PCB apparatus 500 further includes a case assembly 530 for protecting the power supply unit 520. The case assembly 530 includes a first case 531 covering one side of the power supply unit 520 and a second case 535 covering the other side of the power supply unit 520. The first and second cases 531 and 535 may be coupled to each other to cover the power supply unit 520.

The first case 531 and the second case 535 protect the power supply unit 520 and are connected to other parts provided inside the air cleaner 10 by the heat generated from the power supply unit 520 In order to prevent fire from occurring, it may be made of non-combustible material. For example, the first case 531 or the second case 535 may be made of a steel material.

The case assembly 530 includes an insulating member 533 disposed between the power supply unit 520 and the second case 535. The insulating member 533 protects the power supply unit 520 and can perform a function of preventing a current leaked from the power supply unit 520 from being transmitted to other components, that is, an insulation function. For example, the insulating member 533 may be made of an ABS resin (acrylonitrile-butadiene-styrene copolymer).

A process of assembling the PCB device 500 will be briefly described.

The PCB unit 500 is turned upside down so that the support plate 540 faces downward and the PCB support unit 525 is positioned at the upper side of the PCB unit 500. In the process of connecting the electrical wires to the PCB unit 500, . And is supported on the upper surface of the lever supporting device 210. At this time, the first assembly guide 543 may be seated in the first groove 213.

When the wiring process is completed, the PCB device 500 is turned upside down and moved downward. In the process of moving the PCB device 500 downward, the PCB device 500 is positioned inside the first to fifth space parts 449, 459, 184, 194, and 219. The downward movement of the PCB device 500 may be performed until the first and second assembly guides 543 and 544 are seated in the first and second grooves 213 and 214.

When the assembly of the PCB device 500 is completed, the lever device 242 is coupled to the upper side of the PCB device 500. The lever body 243 of the lever device 242 may cover the upper side of the first assembly guide 543.

On the other hand, when the PCB device 500 is to be separated for after-sales service, the lever device 242 may be moved upward to separate and lift up the PCB device 500. According to such a configuration, the convenience of operation for assembling and separating the PCB device 500 can be improved.

The configuration of the second blower 200 will be described with reference to FIGS. 2 and 3. FIG.

The second fan device 200 includes a lever device and a supporting device provided on the lever supporting device 560. The configuration of the lever device and the supporting device is similar to that of the lever device 142 and the supporting device 140 of the first fan device 100. Explanations therefor are the same as those of the first fan device 100 .

A second filter member 220, a second filter frame 230, a second fan housing 250, a second fan 260, and a second fan motor 265 are connected to the second fan unit 200, . These configurations are the same as those of the first fan unit 120 provided in the first fan unit 100, the first filter frame 130, the first fan housing 150, the first fan 160, 165, and therefore, the description thereof relates to the description of the first blower 100. [

The second fan unit 200 further includes a third air guide unit 270 coupled to an upper side of the second fan 260 to guide the flow of air passing through the second fan 260 . Since the third air guide device 270 is similar to the first air guide device 170, the description of the first air guide device 170 is used.

The third air guide device 270 includes a guide device for guiding the movement of the flow switching device 300. The guide device includes a first rack and a shaft guide groove.

The second air blowing device 200 is provided with a second air discharge guide device 280 installed at the upper side of the third air guide device 270 for guiding the flow of air passing through the third air guide device 270 .

On the upper side of the second discharge guide device 280, the flow switching device 300 is movably provided. The flow switching device 300 includes a third fan 330. The third fan 330 guides the air that has passed through the third air guide device 270 to be discharged to the outside of the air cleaner 10. A third fan motor 335 may be coupled to the third fan 330.

The third fan 330 may include an axial flow fan. In detail, the third fan 330 may be operated to discharge the air axially flowing through the third air guide device 270 in the axial direction. The air that has passed through the third fan 330 can be discharged to the outside through the second discharging unit 305 positioned above the third fan 330.

The air cleaner 10 is provided with the second discharging portion 305 together with the first discharging portion 105 of the first air blowing apparatus 100 so that the discharged air amount is improved and air is discharged in various directions Effect appears.

A display device 600 may be provided on the upper surface of the air cleaner 10 to display operation information of the air cleaner 10. The display device 600 includes a display PCB 618. The display PCB 618 may be installed in a space between the upper surface of the air cleaner 10 and the third fan 330.

The first fan motor 165 and the second fan motor 265 may be arranged in a line with respect to the longitudinal direction of the air cleaner 10. 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 flow switching device 300 further includes a rotation guide device for guiding rotation of the flow switching device 300 in the left-right direction and rotation in the up-down 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 device includes a first guide mechanism for guiding the rotation of the fluidization device 300 in the first direction and a second guide mechanism for guiding the rotation of the fluidization device 300 in the second direction .

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 second guide mechanism includes a rotation guide member 370 (see FIG. 18) for guiding rotation of the flow switching device 300 in the second direction. The rotation guide member 370 includes a rack 374.

The second guide mechanism may include a second gear motor 367 for generating a driving force and a second gear 365 coupled to the second gear motor 367. For example, the second gear motor 367 may include a step motor. 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 . Therefore, the flow switching device 300 can perform the second direction rotation according to the movement of the rotation guide member 370.

Second position "protruding from the upper surface of the air cleaner 10 when the flow switching device 300 rotates in the second direction (see FIG. 18). On the other hand, as shown in Fig. 3, the position where the flow switching device 300 is lying may be referred to as a "first position ".

16 to 18 are views showing the air flow in the air cleaner according to the embodiment of the present invention. The flow of air according to the embodiment of the present invention will be briefly described with reference to FIGS. 14 to 16. FIG.

First, the flow of air in accordance with the driving of the first fan unit 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, 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 to provide a stable upward flow. 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.

At this time, since the radially outermost portion of the partition plate 430 is positioned further outward than the outermost portion of the air flow path discharged through the first discharge portion 105, the radially outermost portion of the partition plate 430 is discharged from the first discharge portion 105 The upward flow of the air is restricted, and the discharge in the radial direction can be effectively guided.

On the other hand, 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 the 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 first filter member 120, 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 passes through the third air guide device 270 and the second discharge guide device 280, An upward flow is achieved. The 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, when the flow switching device 300 is in the first position lying as shown in FIGS. 16 and 17, the air discharged from the flow switching device 300 flows upward. On the other hand, when the flow switching device 300 is in the second position as shown in FIG. 18, the air discharged from the flow switching device 300 can flow toward the front upper side. The air flow rate of the air discharged from the air cleaner 10 is increased by the flow switching device 300 and purified air can be supplied to a position far from the air cleaner 10. [

10: air cleaner 20: base
100: blower device 100: first blower device
101: first case 110: suction grill
120: first filter member 130: first filter frame
140: Support device 142: Lever device
150: first fan housing 160: first fan
170: first air guide device 180: second air guide device
190: first discharge guide device 200: second blower
201: second case 210: lever supporting device
260: second fan 270: third air guide device
280: second discharge guide device 300: flow switching device
400: Blocking device 430:
440: first plate 450: second plate
500: PCB device 511: Main PCB
520: power supply unit 525: PCB support
530: Case assembly 540:
543: first assembly guide 544: second assembly guide

Claims (19)

A first fan unit having a first fan for generating an air flow from the first suction unit toward the first discharge unit;
A second fan disposed on the upper side of the first fan unit and having a second fan for generating an air flow from the second suction unit toward the second discharge unit; And
A partition plate disposed between the first fan unit and the second fan unit to radially guide the air discharged upward in the first discharge unit and having a partition plate hole; And
And a PCB device installed in the partition plate hole,
The partition plate includes an annular first plate having a first space portion passing vertically at a central portion thereof and an annular second plate coupled to an upper side of the first plate and having a second space portion vertically passing through the center portion ,
Wherein the first and second space portions are vertically aligned to form the partition plate hollow portion. delete delete delete The method according to claim 1,
Further comprising a second air guide device disposed on a discharge side of the first fan and guiding air flow to the first discharge portion,
In the second air guide device,
And a third space portion in which at least a portion of the PCB device is located. 6. The method of claim 5,
The third space unit includes:
And a central portion of the second air guide device is formed to penetrate in a vertical direction. 6. The method of claim 5,
Further comprising a first discharge guide device disposed on a discharge side of the second air guide device and having the first discharge portion,
In the first discharge guide device,
And a fourth space portion in which at least a part of the PCB device is located. 8. The method of claim 7,
Wherein the third space part and the fourth space part are vertically aligned. The method according to claim 1,
And a lever supporting device coupled to one side of the partition plate and having a fifth space part communicating with the partition plate hole part. 10. The method of claim 9,
In the lever supporting device,
And a movement guide portion for supporting the filter member of the second fan unit and guiding the up and down movement of the filter member. The method according to claim 1,
The partition plate
Wherein the first air blowing device and the second air blowing device are vertically spaced apart from each other. 12. The method of claim 11,
In the PCB device,
A PCB support portion extending in a vertical direction; And
And first and second PCBs disposed on both sides of the PCB support unit and arranged in a radial direction. 13. The method of claim 12,
In the PCB device,
Further comprising a support plate provided on the upper surface of the PCB support part and supported by at least a part of the second air blowing device. 14. The method of claim 13,
The second fan unit includes a filter member and a lever support device for supporting a lower side of the filter member,
Wherein the support plate is supported by the lever support device. 15. The method of claim 14,
In the support plate,
And an assembly guide which is placed in the groove of the lever support device. 16. The method of claim 15,
The lever support apparatus includes an annular lever-supporting body; And a support protrusion protruding from the lever support body,
And the groove is depressed downward from an upper end of the supporting jaw. 14. The method of claim 13,
Wherein the support plate includes a gripping portion capable of gripping by a user. The method according to claim 1,
In the PCB device,
Power supply;
A casing of a non-combustible material surrounding the power supply; And
And an insulating member disposed between the power supply unit and the case. 19. The method of claim 18,
In the PCB device,
A PCB support unit having a first surface on which the power supply unit is installed; And
And a main PCB mounted on a second side of the PCB support.

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