KR20220050540A - Air cleaner - Google Patents

Abstract

According to one embodiment of the present invention, an air purifier comprises: a fan unit providing blowing force for allowing external air to flow to the inside of the air purifier; a filter filtering the external air introduced to the inside of the air purifier to provide filtered air; and a frame having an inlet for allowing the external air to be introduced into the air purifier and an outlet for discharging the filtered air to the outside of the air purifier. The filter is disposed in an inner space of the frame to enable an end part of an upper side thereof to be tilted toward the inlet, and the fan unit is disposed between the filter and the outlet and comprises: the fan motor rotated around a rotational shaft extended in a first direction; and a plurality of fans spaced from and disposed on both sides of the fan motor along the rotational shaft to be driven by the fan motor. The plurality of fans allow the filtered air to be introduced in a parallel direction to the rotational shaft and discharge the filtered air in a second direction in perpendicular to the first direction.

Description

Air purifier {AIR CLEANER}

The present invention relates to an air purifier.

In general, an air purifier can make the indoor environment pleasant by forcibly sucking in air, filtering out dust and odors mixed in the air, and blowing it back into the room.

Such an air purifier may include a blowing fan and a filter. Accordingly, indoor air may be sucked into the air purifier through the suction port formed in the air purifier by the operation of the blowing fan. In addition, as the air sucked into the air purifier passes through the filter unit, various kinds of dust and foreign substances contained in the air may be filtered and discharged from the outlet of the air purifier.

However, since the blower fan of the conventional air purifier is disposed between the suction port and the filter, the performance may be deteriorated as dust and foreign substances contained in the air are introduced, and the lifespan of the blower fan may be shortened. In addition, the filter of the conventional air purifier is disposed in a vertical direction and there is a problem in that air moving in an upward direction is filtered only in a part of the total area.

In this regard, Korean Patent Publication No. 10-1915169 "Air purifier for vehicle installation" (Patent Document 1) of Honey IT Co., Ltd. discloses an air purifier installed in the interior of a vehicle to disinfect the air of the vehicle.

However, since the rotating fan disclosed in Patent Document 1 is disposed between an inlet through which air is sucked and the filter, dust contained in the air may be introduced into the rotating fan. Therefore, there is a problem that dust is introduced into the rotating fan. In addition, as the rotating fan disclosed in Patent Document 1 is disposed between the inlet and the filter, the wind pressure may be small compared to the rotation speed of the rotating fan. In addition, the rotating fan disclosed in Patent Document 1 is configured such that air is introduced in the front-rear direction perpendicular to the rotational axis direction and air is discharged upwardly perpendicular to the rotational axis direction. As such, when the direction in which air is introduced and the direction in which air is discharged are perpendicular to the axial direction, the wind pressure at which air is blown is weak. Accordingly, the rotating fan disclosed in Patent Document 1 has a problem in that air does not flow smoothly due to the differential pressure of the filter.

In addition, in Korean Patent Application Laid-Open No. 10-2010-0069339 "Air purification system using phytoncide" (Patent Document 2) of Jang Ki-bong, outside air is introduced laterally or air filtered from the filter is discharged located at the upper side by a blower. Flowing into a sphere is disclosed. However, in the air purifier disclosed in Patent Document 2, the filter and the fan are arranged in a vertical direction and are arranged in parallel with each other in a horizontal direction, so there is a problem in that the space inside the air purifier cannot be efficiently utilized. In addition, the fan disclosed in Patent Document 2 has a limitation in that only a part of the filter overlaps, so that air cannot be filtered from the entire filter. Further, in the fan disclosed in Patent Document 2, a direction for sucking air is a front-rear direction and a direction for discharging air is also a front-rear direction. As such, when the suction direction and the discharge direction are the same direction, there is a problem in that the wind pressure at which the air is blown is weak. Accordingly, the fan disclosed in Patent Document 2 has a problem in that air does not flow smoothly due to the differential pressure of the filter.

Korean Patent Publication No. 10-1915169 (Registered on October 30, 2018) Korean Patent Publication No. 10-2010-0069339 (published on June 24, 2010)

Embodiments of the present invention were invented with the above background in mind, and an object of the present invention is to provide an air purifier with improved filtration performance and air discharge performance by increasing wind pressure while improving space utilization inside the air purifier.

The air purifier according to an embodiment of the present invention includes a fan unit providing blowing power for flowing the outside air into the air purifier, a filter providing filtered air by filtering the external air introduced into the air purifier, and and a frame having an inlet for introducing the outside air into the air purifier and an outlet for discharging the filtered air to the outside of the air purifier, wherein the filter has an upper end inclined toward the inlet. The fan unit, which is disposed in the inner space of a frame, and is disposed between the filter and the outlet, includes a fan motor rotating about a rotation axis extending in a first direction and the fan motor along the rotation axis a plurality of fans spaced apart from each other and driven by the fan motor; It may be configured to be discharged.

The frame may include a side frame member spaced apart along the first direction to provide a space in which the filter is disposed, and the fan unit may be disposed spaced apart from the side frame member in the first direction.

The fan unit may include a fan housing providing a space in which the plurality of fans are accommodated, and at least one inlet opening in a direction parallel to the rotation shaft and an outlet opening in the second direction are formed in the fan housing. and, each of the plurality of fans may introduce the filtered air into the one or more inlets and discharge them through the outlets.

In addition, the at least one inlet includes a plurality of inlets, the plurality of inlets are opened from both sides of the fan toward opposite sides, and each of the one or more fans passes the filtered air through the plurality of inlets to the fan housing can enter inside.

The device may further include a controller configured to control the fan unit, the fan unit may be formed in plurality, and the controller may drive at least one of the plurality of fan units.

In addition, the filter is formed in plurality, the plurality of filters includes a first filter and a second filter, the plurality of fan units includes a first fan unit and a second fan unit, and the frame includes the second filter. and a partition member formed in the direction to partition the inner space to form a first flow path through which some of the air introduced from the inlet flows and a second flow path through which the remaining air flows; One fan unit may be disposed on the first flow path, and the second filter and the second fan unit may be disposed on the second flow path.

In addition, the first filter and the second filter may be provided as any one or a combination of a dust collecting filter, an antibacterial filter, an antiviral filter, and a deodorizing filter.

According to embodiments of the present invention, the filter seat can be disposed inside the frame so that the upper end of the filter is inclined in the direction of the inlet, so that the space utilization inside the air purifier is improved, and the air is evenly filtered from the front of the filter. can

In addition, a fan unit may be provided between the filter and the outlet, preventing dust and foreign substances from entering the fan unit and allowing air discharged from the outlet to flow away.

1 is a perspective view of an air purifier according to an embodiment of the present invention.
2 is a perspective view of an air purifier with a body part removed according to an embodiment of the present invention.
3 is a perspective view of an air purifier with a side frame member removed according to an embodiment of the present invention.
4 is a cross-sectional view of one side of the air purifier taken along line A-A' of FIG. 3 .
5 is a perspective view of a fan unit according to an embodiment of the present invention.
6 is a perspective view of an air purifier according to another embodiment of the present invention.

Hereinafter, specific embodiments for implementing the technical idea of the present invention will be described in detail with reference to the drawings.

In addition, in the description of the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

In addition, when it is mentioned that a certain component is 'connected' or 'flowed' to another component, it may be directly connected and flowed to the other component, but it should be understood that other components may exist in the middle.

The terminology used herein is only used to describe specific embodiments and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise.

In addition, in the present specification, the expressions of the upper side, the lower side, the side, etc. are described with reference to the drawings, and it is to be noted in advance that if the direction of the corresponding object is changed, it may be expressed differently. For the same reason, some components are exaggerated, omitted, or schematically illustrated in the accompanying drawings, and the size of each component does not fully reflect the actual size.

Also, terms including an ordinal number such as 1st, 2nd, etc. may be used to describe various components, but the components are not limited by these terms. These terms are used only for the purpose of distinguishing one component from another.

The meaning of "comprising," as used herein, specifies a particular characteristic, region, integer, step, operation, element and/or component, and other specific characteristic, region, integer, step, operation, element, component, and/or group. It does not exclude the existence or addition of

Hereinafter, an air purifier 1 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 5 .

The air purifier 1 can purify the polluted air into clean air by filtering dust, odor particles, etc. of the air introduced into the air purifier 1 . The air purifier 1 sucks in air from the outside of the air purifier to the inside, and discharges clean air purified from the inside to the outside. In addition, the air purifier 1 may be provided with a replaceable filter 200 to be described later. As such, the air purifier 1 may be configured to be replaced when the filter 200 is used for a predetermined time or longer and the function deteriorates. The air purifier 1 may include a frame 100 , a filter 200 , and a fan unit 300 .

The frame 100 forms the exterior of the air purifier 1 , and may accommodate the filter 200 and the fan assembly 300 therein. The frame 100 may include a body part 110 , a filter seating part 120 , and a side frame member 130 .

The body part 110 may be formed in an open form on the left and right sides, and the inlet 111 for introducing the outside air into the inside of the air purifier 1 and the filtered air which is the air filtered by the filter 200 . A discharge port 112 for discharging to the outside of the air purifier 1 may be formed. The inlet 111 and the outlet 112 may be formed on different surfaces of the body 110 . That is, the inlet 111 may be formed on the front surface of the body part 110 , and the discharge hole 112 may be formed on the upper surface of the body part 110 . However, the spirit of the present invention is not limited thereto, and the inlet 111 and the outlet 112 may be formed on the same surface of the body 110 . That is, both the inlet 111 and the outlet 112 may be formed on the front or rear surface of the body 110 .

The filter mounting part 120 is a part in which the filter 200 can be seated inside the body part 110 . The filter 200 may be seated on the filter mounting unit 120 and installed inside the body unit 110 . A single filter 200 may be seated on the filter seat 120 , but a plurality of filters 200 may be spaced apart from each other and seated.

The filter seat 120 may be located below the fan unit 300, and the upper end of the filter seat 120 may be disposed to be inclined toward the inlet 111 as shown in FIG. 3 . . For example, the filter seat 120 may be inclined so that an upper end thereof is formed at a position corresponding to the upper inlet among the plurality of inlets 111 . As the filter seat 120 is inclined, the upper end of the filter 200 may also be inclined toward the inlet 111 .

In this way, since the upper end of the filter seat 120 is disposed to be inclined, the filter 200 having a knurled area can be disposed in a narrow space, and the filtration surface of the filter 200 is used as a whole so that air is evenly distributed on the filtration surface. can be filtered. Also, as the fan unit 300 is positioned above the filter seat 120 , the air passing through the inlet 111 may be moved upward by the blowing force of the fan unit 300 . In addition, the filter seat 120 is a filter so that a flow space in front of the filter is formed between the filter 200 and the frame in which the inlet 111 is formed, and a flow space behind the filter is formed between the filter 200 and the fan unit 300 . (200) can be tilted to support. The flow space in front of the filter may be formed to become wider in the front-rear direction toward the lower side, and the flow space to the rear of the filter may be formed to become narrower in the front-rear direction toward the lower side.

The side frame member 130 may cover the open left and right sides of the body part 110 to form a space in which the filter 200 and the fan unit 300 are disposed together with the body part 110 . In addition, the side frame member 130 prevents air from flowing out of the frame 100 , guides the air to the filter 200 , and guides the filtered air provided from the filter 200 to the fan unit 300 . can do.

In addition, the side frame member 130 may be in contact with both sides of the filter seat 120 in order to efficiently guide the air to the filter 200 and the fan unit 300 .

The filter 200 may filter the air introduced from the outside of the air purifier 1 into clean air. For example, the filter 200 may filter dust, odor particles, and the like in the air. The filter 200 may be disposed inside the frame 100 so that an upper end thereof is inclined toward the inlet 111 by the filter seat 120 .

Due to the filter 200 , the internal space of the frame 100 is a first flow space S1 located between the inlet 111 and the filter 200 and a second flow space S1 located between the filter 200 and the outlet 112 . It may be partitioned into a flow space (S2). In addition, the air may flow to the filter 200 in the first flow space S1 after passing through the inlet 111, and the filtered air may flow through the fan unit 300 in the second flow space S2 to the outlet ( 112).

In addition, a plurality of filters 200 may be provided, and the plurality of filters 200 may be arranged side by side in the filter mounting unit 120 . In addition, the plurality of filters 200 may be formed of the same type of filter, but is not limited thereto and may be formed of different types of filters 200 .

For example, the plurality of filters 200 may include a first filter 210 and a second filter 220 . The first filter 210 and the second filter 220 may be provided as any one or a combination of a dust collecting filter, an antibacterial filter, an antiviral filter, and a deodorizing filter. In addition, the first filter 210 and the second filter 220 may be composed of the same type of filter or may be composed of different types of filters.

The fan unit 300 may provide a blowing force for flowing external air into the air purifier 1 . The fan unit 300 is disposed in the second flow space S2 that is a space in which the filtered air flows between the filter 200 and the outlet 112 , and may be spaced apart from the side frame member 130 .

As such, when the fan assembly 300 is disposed in the second flow space S2 , the fan assembly 300 prevents the accumulation of contaminants such as dust because the air filtered by the filter 200 passes through the fan assembly 300 . ) can be efficiently managed. In addition, when the fan assembly 300 is disposed in the second flow space S2 , a strong blowing force may be provided to allow a larger amount of air to pass through the filter 200 . In other words, when the fan assembly 300 is disposed in the second flow space S2 , the wind pressure of the air flowing by the fan assembly 300 compared to the fan assembly 300 disposed in the first flow space S1 . This could be stronger.

Also, a plurality of fan units 300 may be formed. When a plurality of fan units 300 are provided, the plurality of fan units 300 are arranged side by side so as to be spaced apart from each other in the first direction (the direction in which the rotation shaft of the motor extends) to flow the filtered air to the outlet 112. there is.

4 and 5 , the fan unit 300 may include a plurality of fans 310 , a fan housing 320 , and a fan motor 330 .

The plurality of fans 310 may be disposed on both sides of the fan motor 330 rotating about a rotation shaft extending in the first direction and driven by the fan motor 330 . Here, the rotation axis refers to the rotation center of the fan 310 , and thus is not necessarily limited to the shaft member. The plurality of fans 310 may be configured so that filtered air is introduced in a direction parallel to the rotation shaft and discharged in a second direction perpendicular to the first direction.

A discharge port 112 may be located above the plurality of fans 310 , and the filtered air discharged in the second direction by the plurality of fans 310 is discharged to the outside of the air purifier 1 through the discharge port 112 . can be ejected.

The fan housing 320 may provide a space for accommodating the plurality of fans 310 and guide the filtered air to the outlet 112 . Also, as shown in FIGS. 3 to 5 , the fan housing 320 may include one or more inlet ports 321 opened in a direction parallel to the rotation axis and an outlet port 322 opened in a second direction.

The inlet 321 may be formed on a side surface of the fan housing 320 and open in a lateral direction (left or right). The filtered air may be introduced into the fan housing 320 in a direction parallel to the rotation axis through the suction port 321 . A plurality of such suction ports 321 may be provided. When a plurality of suction ports 321 are provided, the plurality of suction ports 321 may be opened from both sides of the fan 310 toward opposite sides. In other words, the suction port 321 of one side may be opened facing the motor 330 , and the suction port 321 of the other side may be opened toward the opposite side of the motor 330 . The filtered air may be introduced into the fan housing 320 in a direction parallel to the rotation axis by the plurality of suction ports 321 .

The outlet 322 may flow filtered air to the outlet 112 . The outlet 322 may discharge the filtered air introduced from the plurality of inlet 321 located on both sides of the fan 310 . The filtered air may be discharged in a direction perpendicular to the axis of rotation by the outlet 322 .

The fan housing 320 may provide a space capable of accommodating a plurality of fans. The fan housing 320 may have a plurality of inlet ports 321 and a plurality of outlet ports 322 formed therein. In addition, the outlet 322 may be disposed to communicate with the outlet 112 upward.

The fan motor 330 may be supported by the fan housing 320 to provide driving force to the fans 310 disposed on both sides of the fan housing 320 . The fan motor 330 may be configured to rotate about a rotational shaft extending in the first direction to introduce air into the fan housing 320 .

Hereinafter, an air purifier 1 according to another embodiment of the present invention will be described with further reference to FIG. 6 .

The frame 100 of the air purifier 1 according to another embodiment of the present invention may further include a partition member 140 and a control unit (not shown).

The partition member 140 may divide the flow path through which the air introduced through the inlet 111 flows into a plurality as the internal space of the frame 100 is separated. The partition member 140 may form a first flow path F1 through which some of the air introduced through the inlet 111 flows and a second flow path F2 through which other partial air flows.

The first flow path F1 and the second flow path F2 may be arranged in parallel along the axial direction. For example, the first flow path F1 and the second flow path F2 may be respectively disposed on the left and right sides of the air purifier 1 when viewed from the front. A first filter 210 and a first fan unit 300a among the plurality of fan units 300 may be disposed on the first flow path F1 , and the second filter 220 and the plurality of fan units 300 may be disposed on the second flow path F2 . A second fan unit may be disposed among the fan units 300 of the .

Air flowing through the first flow path F1 may be filtered by the first filter 210 by the blowing force of the first fan unit 300a and introduced into the first fan unit 300a, and may be introduced into the second flow path F2 ) may be filtered in the second filter 220 by the blowing force of the second fan unit 300b and introduced into the second fan unit 300b.

Also, the partition member 140 may include a first partition wall 142 and a second partition wall 144 .

The first partition wall 142 may extend downwardly from the center of the filter seating part 120 to partition the first flow space S1 and may be connected to the lower portion of the body part 110 . Due to the first partition wall 142 , the air introduced into the first flow path F1 through the inlet 111 flows into the first filter 210 , and the air introduced into the second flow path F2 flows into the second It may flow to the filter 220 .

The second partition wall 144 may extend upwardly from the center of the filter seat 120 to partition the second flow space S2 and be connected to the upper portion of the body 110 . Also, the second partition wall 144 may be positioned between the first fan unit 300a and the second fan unit 300b. The filtered air provided from the first filter 210 by the second partition wall 144 flows to the first fan unit 300a along the first flow path F1, and the filtered air provided from the second filter 200 is It may flow to the second fan unit 300b along the second flow path F2.

The controller may selectively control one or more of the first fan unit 300a and the second fan unit 300b. In addition, the control unit drives both the first fan unit 300a and the second fan unit 300b or controls only one of the first fan unit 300a and the second fan unit 300b to be discharged from the outlet 112 . You can control the amount of air.

For example, when only the first fan unit 300a is driven by the controller, external air flows into the first flow path F1 through the inlet 111 , is filtered by the first filter 210 , and then the first fan unit It may be introduced into the 300a and discharged through the outlet 122 by the first fan unit 300a. In addition, when only the second fan unit 300b is driven, external air flows into the second flow path F2 through the inlet 111 , is filtered by the second filter 220 , and then flows into the second fan unit 300b. It may be introduced and discharged through the outlet 112 by the second fan unit 300a.

In addition, when the first filter 210 is an antibacterial filter and the second filter 220 is an antiviral filter, the controller drives at least one of the first fan unit 300a and the second fan unit 300b. The air purifier 1 may be driven in an antibacterial mode or an antiviral mode.

Hereinafter, the operation and effect of the air purifier 1 according to an embodiment of the present invention will be described.

The air purifier 1 may filter the outside air and discharge it as clean air. First, the air introduced into the frame 100 through the inlet 111 is filtered into clean air while passing through the filter 200 . The filter 200 is inclined so that the upper end faces the inlet 111 . A flow space (a flow space in front of the filter) is provided in front of the filter 200 so that air introduced from the outside can completely pass through the filtration surface of the filter 200 .

In addition, the internal space of the body 110 may be divided into a first flow space S1 and a second flow space S2 by the filter 200 . The first filter 210 for filtering the air in the first flow space S1 and the second filter 220 for filtering the air in the second flow space S2 may be provided as different types of filters.

The fan unit 300 may be disposed in the second flow space S2 to provide blowing force for flowing external air into the air purifier 1 . As such, as the fan unit 300 is disposed in the second flow space S2 , the fan unit 300 flows the filtered air filtered by the filter 200 , so that dust inside the fan unit 300 is removed from the fan unit. It can be prevented from flowing into (300).

In addition, the fan unit 300 is provided downstream of the filter 200 to flow air in a direction in which air is sucked from the filter 200 , so that, despite the differential pressure in the filter 200 , a relatively large amount of air is supplied. can be moved. In addition, the fan unit 300 is configured to introduce air in a direction parallel to the direction in which the rotation shaft extends, and discharge the air in a direction perpendicular to the rotation shaft. As such, since the fan unit 300 is configured so that the air intake direction and the air discharge direction are perpendicular to each other, it is possible to smoothly blow a larger amount of air with a higher wind pressure, so that the filtration performance and the air discharge performance can be improved. there is.

Although the embodiments of the present invention have been described as specific embodiments, this is merely an example, and the present invention is not limited thereto, and it should be construed as having the widest scope according to the technical idea disclosed herein. A person skilled in the art may implement a pattern of a shape not specified by combining/substituting the disclosed embodiments, but this also does not depart from the scope of the present invention. In addition, those skilled in the art can easily change or modify the disclosed embodiments based on the present specification, and it is clear that such changes or modifications also fall within the scope of the present invention.

1: air purifier 100: frame
111: inlet 112: outlet
130: side frame member 140: bulkhead member
142: first barrier rib 144: second barrier rib
200: filter 210: first filter
220: second filter 300: fan unit
310: fan 320: fan housing
321: inlet 322: outlet
330: fan motor

Claims (7)

In the air purifier for filtering outside air,
a fan unit providing a blowing force for flowing the outside air into the air purifier;
a filter for filtering the external air introduced into the air purifier to provide filtered air; and
and a frame in which an inlet for introducing the outside air into the air purifier and an outlet for discharging the filtered air to the outside of the air purifier are formed,
The filter is disposed in the inner space of the frame so that an end adjacent to the fan unit is inclined toward the inlet,
The fan unit is disposed in a second flow space that is a space in which the filtered air flows between the filter and the outlet,
The fan unit includes a fan motor rotating about a rotating shaft extending in a first direction, and a plurality of fans spaced apart from each other on both sides of the fan motor along the rotating shaft and driven by the fan motor,
The plurality of fans, the filtered air is introduced in a direction parallel to the rotation shaft and is configured to be discharged in a second direction perpendicular to the first direction,
air cleaner. The method of claim 1,
The frame includes side frame members spaced apart along the first direction to provide a space in which the filter is disposed,
The fan unit is spaced apart from the side frame member in the first direction,
air cleaner. 3. The method of claim 2,
The fan unit is
and a fan housing providing a space in which the plurality of fans are accommodated;
At least one inlet opening in a direction parallel to the rotation shaft and an outlet opening in the second direction are formed in the fan housing,
Each of the plurality of fans introduces the filtered air into the one or more inlets and discharges them through the outlets,
air cleaner. 4. The method of claim 3,
The one or more suction ports include a plurality of suction ports,
The plurality of suction ports are opened from both sides of the fan toward opposite sides,
Each of the one or more fans introduces the filtered air into the fan housing through the plurality of inlets,
air cleaner. The method of claim 1,
Further comprising a control unit for controlling the fan unit,
The fan unit is provided in plurality, and the plurality of fan units are arranged side by side in the first direction,
The control unit selectively drives at least some of the plurality of fan units,
air cleaner. 6. The method of claim 5,
The filter is provided in plurality,
The plurality of filters include a first filter and a second filter,
The plurality of fan units includes a first fan unit and a second fan unit,
The frame is
The partition wall is formed in the second direction to partition the inner space to form a first flow path through which some of the air introduced from the inlet flows and a second flow path through which other partial air among the air introduced from the inlet flows. further comprising a member,
The first filter and the first fan unit are disposed on a first flow path,
The second filter and the second fan unit are disposed on a second flow path,
air cleaner. 7. The method of claim 6,
The first filter and the second filter are provided as any one or a combination of a dust collecting filter, an antibacterial filter, an antiviral filter, and a deodorizing filter,
air cleaner.

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