KR20240064229A - Air cleaner - Google Patents

Abstract

According to one aspect of the present invention, a frame assembly including a housing; a fan unit that provides blowing force to allow outside air to flow into the interior of the housing; and a main filter that filters air introduced into the housing to provide filtered air, wherein the housing includes an inlet for introducing external air into the main filter, and an inlet for adding external air to the filtered air. An inlet and an outlet for discharging air introduced through the inlet and the inlet are formed, and the frame assembly covers the inlet side to restrict the filtered air from flowing directly toward the inlet. An air purifier may be provided that further includes ribs extending on the flow path of the filtered air.

Description

Air purifier{AIR CLEANER}

The present invention relates to an air purifier.

In general, an air purifier is a device that sucks in polluted indoor air and purifies it into clean air by filtering out dust and odor particles contained in the air. These air purifiers can purify indoor air by sucking in and purifying the surrounding polluted air and then discharging the purified clean air to the outside of the air purifier.

The air purifier may include an inlet for introducing air into the interior, a filter to filter out dust and odor particles contained in the air introduced into the interior, and one or more outlets for discharging the air filtered by the filter.

These air purifiers had the disadvantage of being slow in circulating indoor air due to the slow flow rate of discharged air. It is possible to increase the rotation speed of the fan to increase the air flow rate, but there is a problem that excessive noise is generated from the fan when the rotation speed of the fan increases.

The present applicant's published patent publication No. 10-2018-0018628 "Air Conditioning Device" (Patent Document 1) discloses a technology for increasing the air flow rate without excessively increasing the rotation speed of the fan. Patent Document 1 includes a housing provided with an air intake port for introducing external air, a first air discharge port for discharging air, and a second air discharge port for discharging air in a direction different from the first air discharge port, and a housing provided inside the housing. Disclosed is an air conditioning device including an air processing unit that filters air introduced from an air intake port, a flow path switching unit that rotates so that the filtered air flows to a first air outlet and a second air outlet, and a through hole through which external air passes. there is.

However, when filtered air is discharged from the second air discharge port of the air conditioning device of Patent Document 1, there is a problem that the flow rate and wind volume of the filtered air are still insufficient. In other words, the housing of the air conditioning device of Patent Document 1 is provided with only one air intake portion, so when the filtered air is discharged from the second air outlet, external air is additionally introduced into the housing and together with the filtered air. It is not discharged.

In addition, even when filtered air is discharged from the first air discharge port of the air conditioning device of Patent Document 1, the filtered air does not pass through the through hole and is simply discharged from the air discharge port at the front end of the through hole, so the filtered air There is a problem that the flow speed and wind volume are still insufficient.

Korean Patent Publication No. 10-2018-0018628 (published on February 21, 2018)

One embodiment of the present invention is to provide an air purifier that allows external air to flow in from an intake port and be discharged together with the filtered air when the filtered air is discharged from the outlet.

According to one aspect of the present invention, a frame assembly including a housing; a fan unit that provides blowing force to allow outside air to flow into the interior of the housing; and a main filter that filters air introduced into the housing to provide filtered air, wherein the housing includes an inlet for introducing external air into the main filter, and an inlet for adding external air to the filtered air. An inlet and an outlet for discharging air introduced through the inlet and the inlet are formed, and the frame assembly covers the inlet side to restrict the filtered air from flowing directly toward the inlet. An air purifier may be provided that further includes ribs extending on the flow path of the filtered air.

In addition, the frame assembly further includes a suction guide portion that provides an suction passage for guiding the external air sucked in from the suction port into the interior of the housing, and the rib is located around one end of the suction guide portion. An air purifier disposed inside the housing may be provided.

In addition, the housing further includes a vent for discharging the filtered air in a direction different from the outlet, and the frame assembly includes an air passage extending from the vent toward the intake port to guide the filtered air to the vent. It further includes a flow path portion providing a; wherein the suction guide portion extends from the suction port toward the flow path portion and is disposed to be spaced apart from the flow path portion to form a predetermined gap with the flow path portion, and the rib is located in the gap of the gap. An air purifier configured to cover at least a portion may be provided.

Additionally, an opening and closing member that reciprocates within the housing to open and close the outlet; and a driving unit that provides driving force for moving the opening and closing member, wherein the opening and closing member is moved by the driving unit to open the outlet so that the filtered air is discharged from the outlet, or An air purifier may be provided that is moved by the drive unit to close the outlet so that the air is discharged from the vent.

Additionally, an air purifier may be provided in which, when the outlet is opened, the amount of air discharged through the outlet is greater than the amount of air discharged from the vent.

Additionally, an air purifier may be provided in which one end of the suction guide portion is inserted into the other end of the flow path portion.

In addition, the frame assembly further includes an air guide portion disposed inside the housing and providing a passage through which the filtered air discharged from the fan unit flows to the outlet, and the rib An air purifier may be provided that extends from the inner surface of the air guide portion along the direction in which the flow path portion extends.

Additionally, an air purifier may be provided in which the length in the horizontal direction perpendicular to the direction in which the rib extends is greater than half the length in the horizontal direction of the flow path portion.

Additionally, an air purifier may be provided in which the rib is disposed between the fan unit and the gap and is formed to be convex toward the fan unit.

Additionally, an air purifier may be provided in which the opening and closing member is moved along a direction in which the flow path portion extends by the driving unit.

Additionally, an air purifier may be provided in which at least a portion of the passage portion and at least a portion of the suction guide portion are formed in a tapered shape.

Additionally, an air purifier may be provided in which the gap is formed to be smaller than the length of the outlet in the direction in which the flow path extends.

In addition, when the opening and closing member closes the outlet, the outside air flows into the flow path portion via the suction guide portion, the filtered air flows into the flow path portion through the gap, and the opening and closing member closes the outlet. When opened, the external air flowing in from the flow path portion and the suction guide portion respectively flows into the interior of the housing through the gap, and the filtered air flows to the outlet.

According to one embodiment of the present invention, the filtered air does not flow into the intake port due to the rib provided inside the housing and covers the intake port side, but the external air sucked from the ventilation port and the intake port flows into the housing, and the filtered air and the intake port do not flow into the housing. Since outside air can be discharged from the outlet together, the discharge performance of the air purifier can be improved.

Additionally, since the outlet is opened and closed by the opening and closing member, filtered air can be discharged from the outlet or vent, so the filtered air can be discharged in different directions by moving the opening and closing member.

Additionally, since a larger amount of air can be discharged when the outlet is open than when air is discharged from the vent, the user can set the air discharge amount by opening and closing the outlet.

In addition, one end of the suction guide is inserted into the other end of the flow path, so that external air sucked from the intake port can flow efficiently toward the air passage, and when the outlet is closed, the filtered air of the housing flows through the gap. It can flow efficiently through the air passage.

In addition, since the ribs can be formed extending from the inner surface of the air guide part, the flow of filtered air guided upward by the air guide part can be efficiently restricted, so that the filtered air can efficiently flow to the outlet or vent.

In addition, the rib is disposed between the fan unit and the gap and is convexly formed toward the fan unit, so that filtered air can flow on the left and right sides of the rib, so that negative pressure can be efficiently formed between the flow path portion and the suction guide portion. there is.

Figure 1 is a front perspective view of an air purifier according to an embodiment of the present invention.
Figure 2 is a rear perspective view of the air purifier of Figure 1.
Figure 3 is an exploded perspective view of the air purifier of Figure 1.
Figure 4 is an exploded perspective view of the air purifier of Figure 2.
Figure 5 is an exploded perspective view of the air purifier seen from the bottom of Figure 4.
Figure 6 is a cross-sectional view of the air purifier of Figure 1 cut along A-A'.
Figure 7 is a cross-sectional view of the air purifier of Figure 1 taken along line B-B'.
Figure 8 is an enlarged view of the upper side of the air purifier of Figure 7.
Figure 9 is a cross-sectional view of the air purifier of Figure 1 when it is in the second operation mode.
Figure 10 is an enlarged view of the upper side of the air purifier of Figure 9.

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

In addition, when describing 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 will be omitted.

Additionally, when a component is mentioned as being 'connected' to another component, it should be understood that it may be directly connected to the other component, but that other components may exist in between.

The terms used in this specification are merely used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise.

In addition, it should be noted in advance that expressions such as upper, lower, and side in this specification are explained based on the drawings, and may be expressed differently if the direction of the object in question changes. For the same reason, in the accompanying drawings, some components are exaggerated, omitted, or schematically shown, and the size of each component does not entirely reflect the actual size.

Additionally, terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by these terms. These terms are used only to distinguish one component from another.

As used in the specification, the meaning of "comprising" is to specify a specific characteristic, area, integer, step, operation, element, and/or component, and to specify another specific property, area, 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 the drawings.

Referring to Figures 1 to 3, the air purifier 1 according to an embodiment of the present invention can purify polluted air into clean air by filtering dust, odor particles, etc. from the air introduced into the interior. The air purifier 1 can suck in external air and discharge clean air purified inside to the outside. This air purifier (1) may include a frame assembly (100), a fan unit (200), a main filter (300), a drive unit (400), an opening and closing member (500), an auxiliary filter (600), and a controller (700). You can.

Referring further to FIGS. 4 and 5, the frame assembly 100 may be configured to suck in external air from the air purifier 1 and discharge air filtered by the main filter 300. This frame assembly 100 may include a housing 110, a flow path portion 120, a suction guide portion 130, an air guide portion 140, a rib 150, and an opening/closing portion support portion 160.

The housing 110 provides an accommodation space for accommodating the fan unit 200, main filter 300, drive unit 400, opening and closing member 500, and auxiliary filter 600, and provides an external appearance of the air purifier (1). can be formed. In addition, the housing 110 includes an inlet 110a through which external air flows in, a vent 110b through which external air flows in or discharges filtered air, and an outlet 110c through which filtered air is discharged in a direction different from the vent 110b. ) and an intake port 110d may be formed to suck in external air and add external air to the filtered air. For example, the inlet 110a and the vent 110b are formed on the front of the housing 110, the outlet 110c is formed on the top of the housing 110, and the intake port 110d is formed on the rear of the housing 110. can be formed in

Referring further to FIGS. 6 and 7, the flow path portion 120 is disposed inside the housing 110 and extends from the ventilation hole 110b toward the intake port 110d to guide filtered air to the ventilation hole 110b or external air. An air passage 121 may be provided to guide the inside of the housing 110. Through this air passage 121, filtered air flowing inside the housing 110 can be discharged from the vent 110b. Additionally, filtered air introduced from the ventilation hole 110b through the air passage 121 may flow into the housing 110. The flow path portion 120 may be supported on the air guide portion 140 to be disposed inside the housing 110. In other words, the flow path portion 120 may be formed extending from the upper part of the air guide portion 140 in the front-back direction. The left and right lengths of the flow path portion 120 may be smaller than the left and right lengths of the air guide portion 140. At least a portion of the flow path portion 120 may be disposed inside the air guide portion 140. In other words, one end on the front side of the passage portion 120 may be in communication with the ventilation hole 110b, and the other end on the rear side may be disposed inside the air guide portion 140. Additionally, at least a portion of the flow path portion 120 may be formed in a tapered shape. In other words, at least a portion of the flow path portion 120 may have an inner diameter that becomes smaller as it faces the inside of the housing 110.

The suction guide unit 130 may provide an suction passage 131 for guiding external air sucked from the suction port 110d into the interior of the housing 110. The suction guide portion 130 extends in the front-back direction from the suction port 110d toward the passage portion 120, and may be arranged to be spaced apart from the passage portion 120 to form a predetermined gap g with the passage portion 120. there is. One end, which is the front side of the suction guide part 130, may be inserted into the other end of the flow path part 120. In other words, a gap g may be formed in the vertical direction between one end of the suction guide part 130 and the other end of the inlet part 110a. Through this gap (g), filtered air flowing inside the housing 110 can flow into the air passage 121. Additionally, external air flowing in the air passage 121 may flow into the housing 110 due to the gap g. Additionally, at least a portion of the suction guide portion 130 may be formed in a tapered shape. In other words, at least a portion of the suction guide portion 130 may have an inner diameter that becomes smaller as it faces the inside of the housing 110.

The air guide unit 140 is disposed inside the housing 110 and extends vertically to guide the filtered air discharged from the fan unit 200 so that it flows toward the outlet 110c. In other words, the air guide unit 140 may form an internal space through which filtered air flows together with the housing 110. In addition, the rear side of the flow path portion 120 and the front side of the suction guide portion 130 may be located in the internal space of the air guide portion 140. In other words, a gap g may be located inside the air guide unit 140. By this air guide unit 140, the filtered air flowing inside the housing 110 can flow to the outlet 110c or to the air passage 121 through the gap g. Additionally, the air guide unit 140 may include a first air guide 141 and a second air guide 142.

The first air guide 141 extends in the vertical direction and can guide filtered air together with the second air guide 142. This first air guide 141 may extend upward from the bottom of the fan unit 200. Additionally, a fan unit 200 may be provided between the first air guide 141 and the second air guide 142.

The second air guide 142 extends in the vertical direction and can guide filtered air together with the first air guide 141. In other words, filtered air may flow between the first air guide 141 and the second air guide 142. This second air guide 142 may extend upward from the bottom of the fan unit 200. The lower side of the second air guide 142 and the lower side of the first air guide 141 may be connected to each other.

Additionally, a portion of the second air guide 142 may have a shape to protrude toward the first air guide 141. A portion of the second air guide 142 may be placed lower than the rib 150 and above the fan unit 200.

Referring further to FIG. 8, the rib 150 may be formed to extend on the flow path of the filtered air to cover the side of the intake port 110d, in order to restrict the filtered air from flowing directly toward the intake port 110d. The rib 150 may be disposed inside the housing 110 so as to be provided around one end of the suction guide unit 130. The lower end of the rib 150 may be disposed lower than the front end of the flow path portion 120, and both left and right ends of the rib 150 may be disposed higher than the lower side of the front end of the flow path portion 120.

Additionally, the rib 150 may be disposed between the gap g and the fan unit 200 and may be formed to cover at least a portion of the gap g when viewed from below. Additionally, the length in the left and right directions perpendicular to the direction in which the ribs 150 extend may be greater than half the length in the left and right directions of the flow path portion 120. In other words, the rib 150 may have a width in the left and right directions that is larger than that of the flow path portion 120.

The ribs 150 may be formed to be spaced apart from the lower portion of the flow path portion 120. The separation distance between the rib 150 and the flow path portion 120 may be smaller than the separation distance between the rib 150 and the side portion of the air guide portion 140. In addition, the separation distance between the rib 150 and the flow path portion 120 may be larger than the gap (g) between the flow path portion 120 and the suction guide portion 130, and may be larger than the width of the rib 150 in the left and right directions. It may be smaller, and may be smaller than the height of the rib 150 in the vertical direction.

Additionally, the ribs 150 may be formed to be convex toward the fan unit 200. In other words, the rib 150 has a shape corresponding to the outer surface (circumferential surface) of the flow path portion 120 and may be formed along the outer surface. Additionally, the rib 150 may have a shape in which both left and right ends are located above the center. Additionally, both left and right ends of the rib 150 may be disposed higher than the lower end of the flow path portion 120. By these ribs 150, filtered air can pass between the ribs 150 and the air guide part 140 and flow to the gap g or the outlet 110c.

These ribs 150 may be supported on one or more of the air guide portion 140 and the rear of the housing 110. For example, the rib 150 may extend from the inner surface of the air guide portion 140 along the direction in which the flow path portion 120 extends. In other words, the rib 150 may extend in the front-back direction from the inner surface of the air guide portion 140 toward the rear of the housing 110. As another example, the rib 150 may extend from the rear of the housing 110 toward the inner surface of the air guide unit 140.

The opening and closing support portion 160 may support the opening and closing member 500 so that the opening and closing member 500 can move. The opening/closing portion support portion 160 is located inside the housing 110 and may be supported on the upper side of the air guide portion 140 so as to be disposed above the flow path portion 120. Additionally, a rail 161 that guides the movement of the opening and closing member 500 may be formed on the opening and closing support portion 160. The rail 161 may be inserted downward from the upper surface of the opening/closing support portion 160 and extend in the front-back direction. Since the opening and closing guide part 530 can be inserted and moved in the rail 161, the opening and closing member 500 can be guided in the front and rear directions.

The fan unit 200 may provide blowing force so that air flows into the internal space of the housing 110 through the inlet 110a. The fan unit 200 may be placed inside the air guide unit 140 so as to be placed lower than the rib 150. External air may be filtered in the main filter 300 by the blowing force of the fan unit 200 and then flow upward in the inner space of the housing 110 by the air guide unit 140.

The main filter 300 can filter air flowing into the internal space of the housing 110. For example, the main filter 300 may be a HEPA filter. This main filter 300 may be placed between the inlet 110a and the fan unit 200.

The driving unit 400 may provide driving force to move the opening and closing member 500. By the driving force of the driving unit 400, the opening and closing member 500 can be moved in the forward and backward directions. The drive unit 400 may include a motor 410 and a gear unit 420.

The motor 410 may provide driving force to rotate the gear unit 420. This motor 410 may be supported on the frame assembly 100. For example, the motor 410 may be supported on the air guide unit 140 so as to be disposed above the flow path unit 120.

The gear unit 420 may be rotated by the driving force of the motor 410 to move the opening and closing member 500. The gear unit 420 may rotate around a rotation axis extending in the left and right directions. When this gear unit 420 rotates in one direction about the rotation axis, the opening and closing member 500 may be moved rearward to close the outlet (110c). When the gear unit 420 is rotated in the other direction opposite to one direction about the rotation axis, it may be moved forward so that the discharge port 110c is opened.

The opening and closing member 500 is supported on the opening and closing support portion 160 to open and close the outlet 110c. The opening and closing member 500 may be reciprocated in the forward and backward directions within the housing 110 by the driving force of the driving unit 400. When the opening and closing member 500 is moved forward, it can open the outlet (110c), and when it is moved backward, it can close the outlet (110c). When the opening and closing member 500 opens the outlet 110c, the filtered air flowing in the inner space of the housing 110 can flow to the outlet 110c by the air guide part 140. In addition, when the opening and closing member 500 opens the discharge port 110c, external air is sucked into the inner space of the housing 110 from the ventilation port 110b and the intake port 110d by the flow of filtered air, and the discharge port along with the filtered air are sucked into the inner space of the housing 110. It can flow to (110c). When the opening and closing member 500 closes the discharge port 110c, the filtered air flows into the air passage 121 through the gap g and is discharged from the vent 110b together with the external air sucked in from the intake port 110d. You can. This opening and closing member 500 may include an opening and closing unit 510, an opening and closing rack gear 520, and an opening and closing guide unit 530.

The opening/closing unit 510 can open and close the outlet 110c. This opening/closing unit 510 may be placed inside the housing 110 and above the auxiliary filter 600.

The opening and closing rack gear 520 may be provided in the opening and closing unit 510 and engaged with the driving unit 400 so that the opening and closing unit 510 is moved by driving force. In other words, the opening and closing rack gear 520 may be disposed on the lower side of the opening and closing part 510 and extend in the front-back direction to engage with the gear part 420. By this opening and closing rack gear 520, the opening and closing unit 510 can be moved in the forward and backward directions when the gear unit 420 is rotated.

The opening and closing guide part 530 is supported by the opening and closing part support part 160 and can guide the movement of the opening and closing part 510 in the forward and backward directions. In other words, the opening and closing guide part 530 is engaged with the rail 161 of the opening and closing part support part 160 and can be moved along the extension direction of the rail 161 by moving the opening and closing part 510. For example, the opening and closing guide unit 530 may be a wheel.

The auxiliary filter 600 can block foreign substances flowing into the housing 110 through the outlet 110c or re-filter the filtered air flowing toward the outlet 110c. This auxiliary filter 600 may be supported on the opening/closing portion support portion 160 to be disposed between the passage portion 120 and the outlet 110c. Additionally, the auxiliary filter 600 may be disposed between the flow path portion 120 and the opening and closing member 500 when the opening and closing member 500 closes the outlet 110c.

The controller 700 can control the driving unit 400 based on a plurality of operation modes. The plurality of driving modes may include a first driving mode and a second driving mode.

The first operation mode is a mode for discharging filtered air through the vent 110b. When in the first operation mode, the controller 700 can control the drive unit 400 so that the outlet 110c is closed. By the controller 700, in the first operation mode, the drive unit 400 may rotate the gear unit 420 in one direction so that the opening and closing member 500 moves rearward and closes the outlet 110c. . In this first operation mode, the air sucked from the intake port 110d flows into the air passage 121 of the flow path portion 120, and the filtered air inside the housing 110 flows into the flow path portion by Bernoulli's principle and Coanda effect. It may flow into the air passage 121 of (120). In other words, in the first operation mode, the filtered air guided by the air guide unit 140 flows into the air passage 510a of the passage unit 120 through the gap g and then flows through the vent 110b. may be discharged. Additionally, in the first operation mode, external air may flow into the flow path unit 120 via the suction guide unit 130.

Referring further to FIGS. 9 and 10, the second operation mode is a mode for discharging filtered air through the outlet (110c). When in the second operation mode, the controller 700 can control the drive unit 400 to open the outlet 110c. When in the second operation mode by the controller 700, the driving unit 400 may rotate the gear unit 420 in the other direction so that the opening and closing member 500 moves forward. In this second operation mode, the filtered air inside the housing 110 is guided upward by the air guide part 140, does not flow into the gap g by the rib 150, and flows out of the outlet 110c. may be discharged. Additionally, in the second operation mode, the filtered air inside the housing 110 rises from the left and right sides of the ribs 150, so that a negative pressure may be formed between the flow path portion 120 and the suction guide portion 130. When negative pressure is formed between the flow path portion 120 and the suction guide portion 130, external air flows into the housing 110 through the air passage 121 and the intake port 110d, and enters the outlet 110c together with the filtered air. can be emitted from In other words, in the second operation mode, external air flowing in from the flow path portion 120 and the suction guide portion 130 flows into the inside of the housing 110 through the gap g, and the filtered air flows through the outlet. It can flow to (110c).

The controller 700 described above can be implemented by an arithmetic device including a microprocessor, a measuring device such as a sensor, and memory, and since the implementation method is obvious to those skilled in the art, further detailed description will be omitted.

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

Due to the rib 150 provided inside the housing of the air purifier (1) according to an embodiment of the present invention and covering the side of the intake port (110d), filtered air does not flow into the intake port (110d), and the vent (110b) And since the outside air sucked in from the intake port 110d flows into the housing, the filtered air and the outside air can be discharged from the outlet 110c together, so the discharge performance of the air purifier 1 can be improved. In other words, the rib 150 is disposed between the fan unit 200 and the gap g and is formed to be convex toward the fan unit 200, so that filtered air can flow from the left and right sides of the rib 150. , negative pressure can be efficiently formed between the flow path portion 120 and the suction guide portion 130. Additionally, external air may flow into the housing 110 through the vent 110b and the intake port 110d due to negative pressure and be discharged from the outlet 110c together with the filtered air.

In addition, since at least a portion of the flow path portion 120 and at least a portion of the suction guide portion 130 may be formed in a tapered shape, when negative pressure is formed between the flow path portion 120 and the suction guide portion 130, the external Air can efficiently and quickly flow toward the inside of the housing 110.

In addition, even if both the outlet 110c and the vent 110b are open, the filtered air inside the housing 110 can be discharged from the outlet 110c by the rib 150.

Additionally, the rib 150 may be provided around one end of the suction guide unit 130, so that filtered air can be prevented from flowing into the suction guide unit 130. In other words, the rib 150 can cover at least a portion of the gap g, so filtered air can be prevented from flowing directly into the air passage 121 or the suction passage 131 through the gap g. there is.

Additionally, the outlet 110c is opened and closed by the opening and closing member 500, so that filtered air can be discharged from the outlet 110c or the vent 110b. In other words, filtered air can be discharged in different directions by moving the opening and closing member 500.

Additionally, when the outlet 110c is opened more than the vent 110b, a larger amount of air can be discharged, so the user can set the amount of air discharged by opening and closing the outlet 110c.

Additionally, one end of the suction guide part 130 is inserted into the other end of the flow path part 120, so that external air sucked from the suction port 110d can efficiently flow toward the air passage 121. In addition, since the external air sucked from the intake port 110d can efficiently flow toward the air passage 121, when the discharge port 110c is closed, the filtered air of the housing 110 flows into the air passage 121 through the gap g. It can flow efficiently into the furnace 121.

In addition, since the rib 150 can be formed to extend from the inner surface of the air guide part 140, the flow of filtered air guided upward by the air guide part 140 can be efficiently restricted, so that the filtered air can be It can flow efficiently through the outlet 110c or the vent 110b.

In addition, the length in the horizontal direction perpendicular to the direction in which the rib 150 extends may be greater than half the horizontal length of the flow path portion 120, so that filtered air flows directly into the gap g. This can be effectively prevented.

In addition, the gap g may be formed to be smaller than the length of the outlet 110c in the direction in which the passage portion 120 extends, so that when the outlet 110c is closed, air flows quickly into the air passage 510a. It can flow in and be quickly discharged from the ventilation hole (110b). In other words, the gap g is formed to be smaller than the internal space of the housing 110, so that air flowing inside the housing 110 can quickly flow into the air passage 121 due to Bernoulli's principle and Coanda effect.

Although embodiments of the present invention have been described above as specific embodiments, this is merely an example, and the present invention is not limited thereto, and should be construed as having the widest scope following the technical idea disclosed in this specification. 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, a person skilled in the art can easily change or modify the embodiments disclosed 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 assembly 110: housing
110a: inlet 110b: vent
110c: outlet 110d: intake port
120: Flow path 121: Air passage
130: Suction guide part 131: Suction passage
140: air guide part 150: rib
160: Opening and closing support 161: Rail
200: fan unit 300: main filter
400: driving unit 410: motor
420: gear unit 500: opening and closing member
510: Opening/closing unit 520: Opening/closing rack gear
530: Opening and closing guide part 600: Auxiliary filter
700: Controller

Claims (13)

A frame assembly including a housing;
a fan unit that provides blowing force to allow outside air to flow into the interior of the housing; and
It includes a main filter that filters the air introduced into the housing and provides filtered air,
The housing is formed with an inlet for introducing external air into the main filter, an inlet for adding external air to the filtered air, and an outlet for discharging the air introduced through the inlet and the inlet,
The frame assembly is,
In order to limit the filtered air from flowing directly toward the intake port, it further includes a rib extending on the flow path of the filtered air to cover the intake port side,
air cleaner. According to claim 1,
The frame assembly is,
It further includes a suction guide portion that provides an suction passage for guiding the external air sucked in from the suction port into the interior of the housing,
The rib is disposed inside the housing so as to be provided around one end of the suction guide portion,
air cleaner. According to claim 2,
A vent is further formed in the housing to discharge the filtered air in a direction different from the outlet,
The frame assembly is,
It further includes a flow path extending from the vent toward the intake port and providing an air passage for guiding the filtered air to the vent,
The suction guide portion extends from the suction port toward the flow path portion and is arranged to be spaced apart from the flow path portion to form a predetermined gap with the flow path portion,
The rib is formed to cover at least a portion of the gap,
air cleaner. According to claim 3,
An opening and closing member that moves back and forth inside the housing to open and close the outlet; and
It further includes a driving unit that provides driving force to move the opening and closing member,
The opening and closing member is,
The filtered air is moved by the driving unit to open the outlet so that the filtered air is discharged from the outlet, or
Moved by the drive unit to close the outlet so that the filtered air is discharged from the vent,
air cleaner. According to claim 4,
When the outlet is opened, the amount of air discharged through the outlet is greater than the amount of air discharged from the vent,
air cleaner. According to claim 3,
One end of the suction guide portion is inserted into the other end of the flow path portion,
air cleaner. According to claim 3,
The frame assembly is,
It further includes an air guide portion disposed inside the housing and providing a passage through which the filtered air flows so that the filtered air discharged from the fan unit flows to the outlet,
The rib extends from the inner surface of the air guide portion along the direction in which the flow path portion extends,
air cleaner According to claim 7,
The length in the horizontal direction perpendicular to the direction in which the rib extends is formed to be greater than half the length in the horizontal direction of the flow path portion,
air cleaner. According to claim 3,
The rib is disposed between the fan unit and the gap and is formed to be convex toward the fan unit.
air cleaner. According to claim 4,
The opening and closing member is moved by the drive unit along the direction in which the passage portion extends.
air cleaner. According to claim 3,
At least a portion of the passage portion and at least a portion of the suction guide portion are formed in a tapered shape,
air cleaner. According to claim 3,
The gap is formed to be smaller than the length of the outlet in the direction in which the flow path extends,
air cleaner. According to claim 4,
When the opening and closing member closes the outlet, the outside air flows into the flow path portion through the suction guide portion, and the filtered air flows into the flow path portion through the gap,
When the opening and closing member opens the outlet, the external air flowing in from the passage part and the suction guide part flows into the interior of the housing through the gap, and the filtered air flows to the outlet.
air cleaner.

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