CN107143931B

CN107143931B - Air purifier

Info

Publication number: CN107143931B
Application number: CN201710383734.6A
Authority: CN
Inventors: 刘基奉; 李庆镐; 车相晋
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 2014-10-24
Filing date: 2015-09-23
Publication date: 2020-01-14
Anticipated expiration: 2035-09-23
Also published as: CN107131575B; CN107131575A; CN105546663A; CN107131574B; CN107143931A; CN105546663B; CN107131574A

Abstract

The present invention relates to an air cleaner which causes air sucked from below to flow upward and discharges the air from the front upper side. The method comprises the following steps: a body; a suction inlet arranged at the lower part of the body and used for sucking air; a discharge unit arranged at the upper part of the body and forming a discharge port for discharging the air sucked into the suction port; a filter unit arranged in the body for purifying the air sucked from the suction inlet; an air supply unit disposed at an upper side of the filter unit, for flowing air purified in the filter unit; a duct provided on an upper side of the air supply unit, for guiding air flowing through the air supply unit to the discharge unit, the air supply unit including: a centrifugal fan for making air flow; a blower main body for guiding the air discharged to the side of the centrifugal fan to the upper side, and a blower grid for passing the air is formed on the lower surface of the blower main body; and a blade unit coupled between the air blowing main body and the duct, the blade unit having a plurality of blades arranged at intervals in a circumferential direction, and guiding air guided to an upper side by the air blowing main body to the duct.

Description

Air purifier

This application is a divisional application of an application having an application date of 2015, 9/23, an application number of 2015106122312 and an invention name of "air cleaner".

Technical Field

The present invention relates to an air cleaner, and more particularly, to a home air cleaner.

Background

The air cleaner is a device that purifies polluted air and changes the air into fresh air, and the air cleaner sucks the polluted air by a fan, collects fine dust and bacteria by a filter, and removes body odor, smoke odor, and other offensive odors.

The air purifier can minimize energy consumption and effectively remove pollutants in the air. Also, it is required to increase the air purification capacity while facilitating the use.

Disclosure of Invention

The present invention has been made to solve the above problems, and an object of the present invention is to provide an air cleaner that allows air sucked from below to flow upward and to be discharged from the front upper side.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be more clearly understood by those of ordinary skill in the art to which the present invention pertains from the following.

In order to solve the above problems, an air purifier according to an embodiment of the present invention includes: a body; a suction inlet arranged at the lower part of the body for sucking air; a discharge unit provided at an upper portion of the body and having a discharge port for discharging air sucked into the suction port; a filter unit arranged in the main body for purifying the air sucked from the suction inlet; an air supply unit disposed above the filter unit and configured to flow the air purified by the filter unit; and a duct provided above the air blowing unit, for guiding the air flowing through the air blowing unit to the discharge unit, the air blowing unit including: a centrifugal fan for making air flow; a blower main body which is arranged at the periphery of the centrifugal fan and guides the air discharged to the side surface of the centrifugal fan upwards, and a blower grid which passes the air purified by the filter unit is formed at the lower surface of the blower main body; and a blade unit coupled between the air blowing main body and the duct, the blade unit having a plurality of blades spaced apart in a circumferential direction and guiding air guided upward by the air blowing main body to the duct.

The detailed description of the invention and the accompanying drawings contain specific details of other embodiments.

The air purifier according to the present invention has one or more of the following effects.

First, there is an advantage in that the body is formed long in the vertical direction and the centrifugal fan having a large air volume is used, thereby not only increasing the air purification capacity but also minimizing the installation area.

Secondly, there is an advantage in that the air flowing upward along the body is smoothly discharged forward and upward.

Thirdly, there is an advantage in that a duct is formed to guide air to an outlet formed toward the front upper side through the duct, thereby smoothly discharging the air toward the front upper side.

Fourth, there is an advantage in that the air discharged from the centrifugal fan side is smoothly guided upward. Fifth, there is also an advantage in that a plurality of blades are provided at an upper side of the centrifugal fan and rotated by the centrifugal fan, thereby making the discharged air flow vertically toward an upper side.

Sixth, there is an advantage in that the motor is provided at an upper side of the blowing fan to minimize interference of air flow by the motor.

The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned can be more clearly understood by those skilled in the art to which the present invention pertains from the contents of the claims of the invention.

Drawings

Fig. 1 is a front perspective view of an air cleaner according to an embodiment of the present invention.

Fig. 2 is a rear side perspective view of the air cleaner shown in fig. 1.

Fig. 3 is a side view of the air purifier shown in fig. 1.

Fig. 4 is an exploded perspective view of the air purifier shown in fig. 1.

Fig. 5 is a perspective view of a portion of the structure of the air cleaner shown in fig. 1.

Fig. 6 is a partially exploded perspective view of the air purifier shown in fig. 1.

Fig. 7 is a view showing a state in which a part of the structures of the air purifier shown in fig. 1 are combined.

Fig. 8A is an exploded perspective view of a filter unit of the air purifier shown in fig. 1.

Fig. 8B is a side cross-sectional view of the filter unit shown in fig. 8A.

Fig. 9 is a front view of the filter unit shown in fig. 8A.

Fig. 10A and 10B are views showing an example of installation of the filter unit shown in fig. 8A.

Fig. 11 is an installation example view of a filter unit of the air purifier shown in fig. 1.

Fig. 12 is a partial structural view of a lower portion of the air cleaner shown in fig. 1.

Fig. 13 is a partial configuration diagram of the inside of the air cleaner shown in fig. 1.

Fig. 14 is a partial sectional view of the air purifier shown in fig. 1.

Fig. 15 is a rear view of the air supply main body of the air cleaner shown in fig. 1.

Fig. 16 is a perspective view of a blower fan of the air cleaner shown in fig. 1.

Fig. 17 is a partial configuration diagram of an air blowing unit of the air cleaner shown in fig. 1.

Fig. 18 is a partial sectional view of an upper portion of the air cleaner shown in fig. 1.

Fig. 19 is a perspective view of the air purifier shown in fig. 1.

Fig. 20 is an operation view of an illumination part of the air purifier shown in fig. 1.

Detailed Description

The advantages, features and methods of accomplishing the same will become more apparent from the following detailed description of the embodiments of the invention when taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, and the present invention may be implemented in various ways different from each other, and the embodiments are only for making the disclosure of the present invention more complete, and for making the scope of the present invention more completely understood by those skilled in the art to which the present invention pertains, and the present invention is defined only by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Hereinafter, the present invention will be described using embodiments of the present invention with reference to the accompanying drawings for describing an air cleaner.

Fig. 1 is a front side perspective view of an air cleaner according to an embodiment of the present invention, fig. 2 is a rear side perspective view of the air cleaner shown in fig. 1, fig. 3 is a side view of the air cleaner shown in fig. 1, and fig. 4 is an exploded perspective view of the air cleaner shown in fig. 1.

An air cleaner of an embodiment of the present invention includes: a base 110; a body 120, a portion of which has a cylindrical shape; a suction unit 130 provided at a lower portion of the body 120 and having a suction port 130a formed therein for sucking air; a discharge unit 160 provided at an upper portion of the body 120 and having a discharge port 160a for discharging air sucked into the suction port 130 a; and an air blowing unit 180 provided inside the body 120 for flowing air from the suction unit 130 side to the discharge unit 160 side.

In the following description, the front, rear, left, right, upper and lower directions are as shown in fig. 1 to 3. The vertical direction is the direction vertical to the ground on which the air purifier is placed, the gravity direction is the lower side direction, and the opposite direction of the lower side direction is the upper side direction. The front-back direction and the left-right direction are directions parallel to the ground, and the left-right direction is perpendicular to the front-back direction. The front side is a direction in which a front panel 121 to be described later is disposed, and the rear side is a direction in which a rear panel 122 to be described later is disposed. With the body 120 as a reference, the left direction is the left side of the body 120, and the right direction is the right side of the body 120. The central axis SA is perpendicular to the ground on which the air cleaner is placed, the central axis SA is parallel to the vertical direction, and the horizontal direction is parallel to the ground on which the air cleaner is placed.

The base 110 is placed on the ground to support the body 120. The outer circumference of the base 110 is circular. Preferably, the base 110 is in the form of a hollow ring.

The base 110 is combined with the body 120. The upper side of the base 110 is combined with the body 120 and the suction unit 130. The front semicircular portion of the base 110 is combined with the body 120. The suction unit 130 is rotatably coupled to a rear semicircular portion of the base 110 which is not coupled to the body 120, and a rear of the rear semicircular portion of the base 110 is spaced apart from a rear of the suction unit 130.

The body 120 has a cylindrical shape having a central axis SA, a portion of which is vertical with respect to the ground. The body 120 is combined with the upper side of the base 110 to be supported by the base 110. The cylindrical portion of the body 120 has a circular horizontal cross-section, and the outer circumference of the cylindrical portion of the body 120 is the same as or almost the same as that of the base 110.

The discharge unit 160 is disposed at an upper portion of the main body 120, and the suction unit 130 is disposed at a lower portion of the main body 120. The blower unit 180 and the duct 151 are disposed inside the main body 120. The lower side of the body 120 is combined with the base 110. The body 120 is combined with the front semicircular portion of the base 110.

The main body 120 includes a front panel 121 having a semi-cylindrical shape, a rear panel 122 having a semi-cylindrical shape coupled to an upper portion of the front panel 121, an inner panel 129 having a semi-cylindrical shape disposed behind the front panel 121 and coupled to the base 110, and a handle 123 coupled to side surfaces of the front panel 121 and the rear panel 122.

The front panel 121 has a semi-cylindrical shape to form a front appearance of the body 120. Preferably, at least one horizontal section of the front panel 121 has a semicircular shape.

The lower end of the front panel 121 is formed such that a surface formed by the outer periphery of the lower end of the front panel 121 is perpendicular to the central axis SA, that is, such that a surface formed by the outer periphery of the lower end of the front panel 121 is parallel to the floor on which the air cleaner is placed. The outer circumference of the lower end of the front panel 121 is in a semicircular shape. Preferably, the outer circumference of the lower end of the front panel 121 coincides or almost coincides with the outer circumference of the front semicircular portion of the base 110 in such a manner as to coincide with the outer circumference of the front semicircular portion of the base 110.

The upper end of the front panel 121 is formed such that a surface formed on the outer periphery of the upper end of the front panel 121 is inclined with respect to the central axis SA. The surface formed by the outer periphery of the upper end of the front panel 121 faces upward and forward. The upper end periphery of the front panel 121 is formed in a parabolic shape. Preferably, a plane formed by the outer circumference of the upper end of the front panel 121 coincides with or is parallel to a plane formed by the outer circumference of the upper end of the discharge port 160 a. That is, the outer circumference of the upper end of the front panel 121 preferably coincides or nearly coincides with the outer circumference of the upper end front of the discharge unit 160 so as to coincide with the outer circumference of the upper end front of the discharge unit 160.

An opening is formed in a part of a side surface of the front panel 121, and the handle portion 123 is coupled to the side surface of the front panel 121.

An inner panel 129, an air blowing unit 180, a duct 151, and a discharge unit 160 are disposed behind the front panel 121. The front panel 121 is disposed so as to overlap the semi-cylindrical inner panel 129. The rear surface of the front panel 121 is disposed to face the front surface of the inner panel 129. A base 110 is disposed below the front panel 121.

The rear panel 122 has a semi-cylindrical shape to form a rear appearance of the body 120. Preferably, at least one horizontal section of the rear panel 122 has a semicircular shape. The rear panel 122 is coupled to the rear of the upper portion of the front panel 121 to form a cylindrical appearance. The rear panel 122 is disposed above the suction unit 130, and has a semi-cylindrical rear appearance.

The upper end of the rear panel 122 is formed such that a surface formed by the outer periphery of the upper end of the rear panel 122 is inclined with respect to the central axis SA. The surface formed by the outer periphery of the upper end of the rear panel 122 faces upward and forward. The outer circumference of the upper end of the rear panel 122 has a parabolic shape. The surface formed by the outer periphery of the upper end of the rear panel 122 and the surface formed by the outer periphery of the upper end of the front panel 121 exist on the same plane. The outer periphery of the upper end of the rear panel 122 is formed into an ellipse so as to be continuous with the outer periphery of the upper end of the front panel 121.

Preferably, a plane formed by the outer circumference of the upper end of the rear panel 122 coincides with or is parallel to a plane formed by the outer circumference of the upper end of the discharge port 160 a. That is, it is preferable that the outer circumference of the upper end of the rear panel 122 coincides or almost coincides with the outer circumference of the rear of the upper end of the discharge unit 160 so as to coincide with the outer circumference of the rear of the upper end of the discharge unit 160.

The lower end of the rear panel 122 is formed such that a surface formed by the outer periphery of the lower end of the rear panel 122 is inclined with respect to the central axis SA. The surface formed by the outer periphery of the lower end of the rear panel 122 faces rearward and downward. The outer circumference of the lower end of the rear panel 122 has a parabolic shape. Preferably, a plane formed by the outer circumference of the lower end of the rear panel 122 is parallel to a plane formed by the outer circumference of the upper end of the rear panel 122.

Preferably, a plane formed by the outer circumference of the lower end of the rear panel 122 coincides with or is parallel to a plane formed by a portion of the outer circumference of the upper end of the suction unit 130. That is, it is preferable that the outer circumference of the lower end of the rear panel 122 coincides or almost coincides with a portion of the outer circumference of the upper end of the suction unit 130 in such a manner as to coincide with a portion of the outer circumference of the upper end of the suction unit 130.

An opening is formed at a portion of a side surface of the rear panel 122 so that the handle portion 123 is combined with a portion of a side surface of the rear panel 122.

Air blowing unit 180, duct 151, and discharge unit 160 are disposed in front of rear panel 122. A filter unit 140 and a suction unit 130 are disposed at a lower side of the rear panel 122.

The inner panel 129 has a semi-cylindrical shape and is coupled to the upper front of the base 110. Preferably, at least one horizontal section of the inner panel 129 is in the form of a semicircle.

The lower end of the inner panel 129 is formed such that a surface formed by the outer periphery of the lower end of the inner panel 129 is perpendicular to the central axis SA, that is, such that a surface formed by the outer periphery of the lower end of the inner panel 129 is parallel to the floor surface on which the air cleaner is placed. The lower end of the front panel 121 is combined with the upper side of the front semicircular portion of the base 110. Preferably, the radius of the outer circumference of the lower end of the front panel 121 is smaller than the radius of the outer circumference of the base 110.

The upper end of the inner panel 129 is formed such that a surface formed by the outer periphery of the upper end of the inner panel 129 is perpendicular to the central axis SA, that is, such that the surface formed by the outer periphery of the upper end of the inner panel 129 is parallel to the floor surface on which the air cleaner is placed. The surface formed by the outer periphery of the upper end of the inner panel 129 is parallel to the surface formed by the outer periphery of the lower end of the inner panel 129. The upper end of the inner panel 129 is combined with the air blowing unit 180.

The inner panel 129 is disposed to overlap the front panel 121. The front face of the inner panel 129 is disposed to face the rear face of the front panel 121. An air blowing unit 180 is disposed above the inner panel 129. A filter unit 140 and a suction unit 130 are disposed behind the inner panel 129.

The inner panel 129 guides the air flowing in through the suction port 130a formed obliquely to flow upward. Inner panel 129 is disposed so as to surround the upper surface of the surface formed on the outer periphery of suction port 130a in a direction perpendicular thereto, and guides air flowing into suction port 130a and passing through filter unit 140 to air blowing unit 180.

The grip portion 123 is formed to be drawn toward the inside of the body 120, and is gripped by a user. Preferably, the handle portion 123 is combined with the side of the front panel 121 and/or the rear panel 122, and in this embodiment, the handle portion 123 is combined with the front panel 121 and the rear panel 122 all around the boundary of the front panel 121 and the rear panel 122. Preferably, a plurality of the handle portions 123 are provided.

The coupling of the front panel 121, the rear panel 122, and the inner panel 129 of the main body 120 to each other and the coupling thereof to other structures will be described below with reference to fig. 5 to 7.

The suction unit 130 has a suction port 130a for sucking external air. The suction unit 130 is disposed at a lower portion of the body 120. The suction unit 130 is disposed under the rear panel 122. The suction unit 130 is coupled to the rear of the inner panel 129 and is disposed behind the front panel 121. The suction unit 130 is disposed at a rear side thereof on an upper side of the base 110 in a spaced manner.

The suction port 130a of the suction unit 130 is formed such that a surface formed on the outer periphery of the suction port 130a of the suction unit 130 is inclined with respect to the central axis SA of the cylindrical portion of the main body 120. The surface formed on the outer periphery of suction port 130a is inclined from the horizontal direction in which front panel 121 is disposed, and faces upward in the front direction (downward in the rear direction). The suction port 130a is for sucking air toward the front upper side inclined with respect to the front side where the front panel 121 is disposed.

The outer circumference of suction port 130a has an elliptical shape to maximize a suction area, so that as much air as possible flows in through elliptical suction port 130 a. The cross-section inclined with respect to the central axis AS of the cylindrical body 120 has an elliptical shape, and the air suction amount of the suction port 130a is maximized by forming the suction port 130a in a manner corresponding to such an elliptical cross-section.

Preferably, a surface formed on the outer periphery of the suction port 130a is inclined with respect to a horizontal plane as compared with a surface formed on the outer periphery of the upper end of the discharge port 160 a. Preferably, a surface formed by the outer periphery of the suction port 130a is inclined to be closer to the vertical direction than a surface formed by the outer periphery of the upper end of the discharge port 160a, so that the suction area of the suction port 130a is larger than the discharge area of the discharge port 160 a.

A base 110 is disposed below the suction unit 130. The suction unit 130 is disposed to be spaced apart from the rear semicircular portion of the base 110. Air is sucked through a space partitioned by the suction unit 130 and the base 110.

A filter unit 140 is disposed inside the suction unit 130. A rear panel 122 of the body 120 is disposed above the suction unit 130. The inner panel 129 and the front panel 121 of the main body 120 are disposed in front of the suction unit 130.

The suction unit 130 is rotatably combined with the inner panel 129 and the base 110. The suction unit 130 is opened downward and rearward from the body 120 so that the filter unit 140 can be inserted into the body 120 or the filter unit 140 can be attached to and detached from the body 120. In the following description, the above-described contents will be described in detail with reference to fig. 11 to 13.

The suction unit 130 includes: a semi-cylindrical suction panel 131; and a suction body 132 formed with a suction port 130a for placing the filter unit 140.

A part of the suction panel 131 has a semi-cylindrical shape to form a rear appearance. Preferably, at least one horizontal section of the suction panel 131 has a semicircular shape. The suction panel 131 is coupled to a lower rear portion of the front panel 121 to form a cylindrical appearance together with the body 120. The suction panel 131 is disposed under the rear panel 122 to form a rear appearance of a semi-cylindrical shape.

The upper end of the suction panel 131 is formed such that a surface formed on the outer periphery of the upper end of the suction panel 131 is inclined with respect to the central axis SA. The surface formed by the outer periphery of the upper end of the suction panel 131 faces upward and forward. The outer circumference of the upper end of the suction panel 131 has a parabolic shape. Preferably, a face formed by the outer circumference of the upper end of the suction panel 131 coincides with or is parallel to a face formed by the outer circumference of the lower end of the rear panel 122. Preferably, the outer circumference of the upper end of the suction panel 131 coincides or almost coincides with the outer circumference of the lower end of the rear panel 122 in such a manner as to coincide with the outer circumference of the lower end of the rear panel 122.

A filter check portion 131b is formed at a portion of the outer circumference of the upper end of the suction panel 131, and the filter check portion 131b is formed by opening the suction panel 131 so that a portion of the filter unit 140 is exposed to the outside. The filter confirmation part 131b is formed such that the upper end of the suction panel 131 is U-shaped and is drawn into the lower side.

The lower end of the suction panel 131 is formed such that a surface formed by the outer periphery of the lower end of the suction panel 131 is inclined with respect to the central axis SA. The surface formed by the outer periphery of the lower end of the suction panel 131 faces upward and forward. The outer circumference of the lower end of the suction panel 131 has a parabolic shape. Preferably, a surface formed by the outer circumference of the lower end of the suction panel 131 is more inclined than a surface formed by the outer circumference of the upper end of the suction panel 131 with reference to a horizontal plane. Preferably, a face formed by the outer circumference of the lower end of the suction panel 131 is inclined to be closer to the vertical direction than a face formed by the outer circumference of the upper end of the suction panel 131, so that the suction area of the suction port 130a is large.

The suction body 132 is formed with an oval suction port 130 a. The suction body 132 has a suction grill 132-1 formed at the suction port 130 a. Suction grill 132-1 of suction body 132 is formed in a grill shape on a surface formed on the outer periphery of suction port 130 a. A filter unit 140 is disposed at an upper side of the suction grill 132-1. According to an embodiment, the suction grill 132-1 may be formed at the suction panel 131.

The suction grill 132-1 is formed with a surface inclined with respect to the central axis SA of the cylindrical portion of the body 120 so that the filter unit 140 is obliquely disposed inside the body 120. The suction grill 132-1 is formed such that a surface thereof is inclined in a direction in which the front panel 121 is disposed so as to face a front upper side (rear lower side), thereby supporting a lower surface of the filter unit 140.

A filter support part 132-2 is formed at a lower portion of the suction main body 132, and the filter support part 132-2 protrudes in a direction perpendicular to a plane formed by the suction grill 132-1. The filter supporting part 132-2 supports a portion of the side of the filter unit 140. The filter support part 132-2 is formed to protrude at the outer circumference of the lower part of the suction main body 132 in a manner of having a 'U' -shaped cross section.

The suction body 132 is combined with the inside of the suction panel 131. According to an embodiment, the suction body 132 and the suction panel 131 may be formed in one body.

The filter unit 140 purifies air sucked through the suction port 130 a. The filter unit 140 collects dust and contaminants such as bacteria in the air sucked into the suction port 130a, and deodorizes the air.

The outer circumference of the filter unit 140 is oval. The cross section inclined with respect to the central axis AS of the cylindrical body 120 is elliptical, and the outer circumference of the filter unit 140 is elliptical in a manner corresponding to the elliptical cross section.

The outer circumference of the filter surface of the filter unit 140 through which air passes is elliptical corresponding to the elliptical outer circumference of the filter unit 140. The cross-section inclined with respect to the central axis AS of the cylindrical body 120 has an elliptical shape, and in correspondence with such an elliptical cross-section, the filtering surface of the filtering unit 140 has an elliptical shape, thereby maximizing the amount of air passing through the filtering unit 140.

The filter unit 140 is disposed inside the body 120 by being placed in the suction unit 130. The filter unit 140 is obliquely disposed inside the body 120 so as to correspond to the inclined suction port 130 a. The filter unit 140 maximizes the amount of air passing through the filter unit 140 by arranging the filter surface obliquely to the central axis AS.

The filter unit 140 is attachable to and detachable from the suction unit 130.

In the following description, the filter unit 140 will be described in detail with reference to fig. 8A to 11.

The air blowing unit 180 is provided inside the body 120 to flow air from a lower side to an upper side of the body 120. The outer circumference of the air blowing unit 180 is approximately circular. The air blowing unit 180 flows air in a direction perpendicular to the ground on which the air cleaner is placed. The blower unit 180 is disposed between the suction unit 130 and the duct 151, and causes air to flow from the suction unit 130 side to the duct 151 side.

The blower unit 180 is disposed above the inner panel 129. The front of the blower unit 180 is coupled to the upper side of the inner panel 129. The combination of the blower unit 180 and the inner panel 129 will be explained with reference to fig. 5.

The air blowing unit 180 includes: a motor 189 for generating a rotational force; a blower fan 182 for flowing air by being rotated by a motor 189; a blowing main body 181 coupled to the body 120 to surround the lower side and the outer circumference of the blowing fan 182; a blade 183 disposed above the blowing fan 182, for guiding the air flowing by the blowing fan 182 to one side of the discharge unit 160; and a motor cover 184 disposed above the center of the blade 183 to cover the motor 189.

Referring to fig. 14 to 17, the air blowing unit 180 will be described later.

Duct 151 is disposed above air blowing unit 180, and guides air flowing through air blowing unit 180 to discharge unit 160. The duct 151 is disposed inside the body 120. The duct 151 is combined with an upper side of the air blowing unit 180. A discharge unit 160 is disposed above the duct 151.

Preferably, the surface formed by the outer periphery of the lower end of the duct 151 is perpendicular to the central axis SA (i.e., parallel to the ground), and the outer periphery of the lower end of the duct 151 coincides or nearly coincides with the outer periphery of the upper end of the blade 183 of the air blowing unit 180 so as to coincide with the outer periphery of the upper end of the blade 183 of the air blowing unit 180. Preferably, a plane formed by the outer circumference of the upper end of the duct 151 is inclined with respect to the central axis S A, and the outer circumference of the upper end of the duct 151 coincides or almost coincides with the outer circumference of the lower end of the discharge unit 160 in such a manner as to coincide with the outer circumference of the lower end of the discharge unit 160. The outer circumference of the upper end of the duct 151 coincides with the outer circumference of the lower end of the discharge port 160 a.

The size of the surface formed by the outer periphery of the upper end of the duct 151 is smaller than the size of the surface formed by the outer periphery of the lower end of the duct 151. The duct 151 is formed in such a manner that an inflow area into which air flows is larger than a discharge area from which air is discharged. That is, the duct 151 has a flow path for flowing air that becomes narrower toward the upper side. The air flowing inside the duct 151 is rapidly flowed by forming the duct 151 such that the internal flow path is narrowed according to the flow of the air.

Preferably, the duct 151 is formed such that air discharged to the discharge unit 160 is directed to the front upper side. The shape of the duct 151 will be described later with reference to fig. 18.

A duct grill 152 is disposed above the duct 151. The duct grill 152 prevents foreign substances from flowing into the duct 151 and/or the blower unit 180 through the discharge port 160 a. The duct grill 152 is disposed between the duct 151 and the discharge unit 160.

The discharge unit 160 is formed with a discharge port 160a for discharging air to the outside. The discharge unit 160 is disposed above the duct 151. The discharge unit 160 is provided at an upper portion of the body 120.

The discharge port 160a of the discharge unit 160 is formed such that a surface formed on the outer periphery of the upper end of the discharge port 160a of the discharge unit 160 is inclined with respect to the central axis SA of the cylindrical portion of the body 120. The surface formed by the outer periphery of the upper end of the discharge port 160a faces upward in the forward direction. The discharge port 160a discharges air to the front upper side. The discharge port 160a is formed to discharge air to the front upper side, and prevents the discharged air from flowing in again through the suction port 130a provided at the lower side of the discharge port 160 a.

The outer circumference of the discharge port 160a is formed in an elliptical shape for maximizing a discharge area so that as much air as possible is discharged through the elliptical discharge port 160 a. The cross-section of the discharge opening 160a inclined with respect to the central axis AS of the cylindrical body 120 is elliptical, and the discharge opening 160a is formed in a manner corresponding to such elliptical cross-section to maximize the discharge air amount of the discharge opening 160 a.

Preferably, a surface formed on the outer periphery of the suction port 130a is inclined with respect to a horizontal plane as compared with a surface formed on the outer periphery of the upper end of the discharge port 160 a. Preferably, a surface formed on the outer periphery of the upper end of the discharge port 160a is inclined to be closer to the horizontal direction than a surface formed on the outer periphery of the suction port 130 a.

Preferably, the discharge area of the discharge port 160a is smaller than the suction area of the suction port 130a to allow the air to flow smoothly.

At least one of the discharge port 160a and the suction port 130a is formed such that a surface formed on the outer periphery thereof is inclined with respect to the central axis SA of the cylindrical portion of the main body 120. One of the discharge port 160a and the suction port 130a may be inclined with respect to the central axis SA of the cylindrical portion of the body 120, and the other may be perpendicular or parallel to the central axis SA of the cylindrical portion of the body 120.

The discharge unit 160 includes: a discharge panel 161 for forming the discharge port 160 a; a console section 165 which is disposed above the discharge port 160a so as to cover a part of the discharge port 160a and adjusts a discharge direction of air discharged through the discharge port 160 a; and an illumination unit 166 disposed on a lower surface of the console unit 165 and configured to irradiate the discharge panel 161 with light.

The discharge panel 161 forms a flow path for flowing air and forms an upper appearance of the body 120. The discharge panel 161 has a funnel shape in which the discharge port 160a becomes wider from the lower side to the upper side. At least one cross-section of the discharge panel 161 has an elliptical shape.

The discharge panel 161 is formed such that an upper portion of an inner surface of the discharge panel 161 is exposed to the outside. The light irradiated from the illuminating section 166 is reflected on the upper portion of the inner surface of the discharge panel 161.

Preferably, a surface formed by the outer periphery of the lower end of the discharge panel 161 is inclined with respect to the central axis SA and coincides with the outer periphery of the lower end of the duct 151 in such a manner as to coincide with the outer periphery of the lower end of the duct 151. The outer circumference forming surface of the upper end of the discharge panel 161 is inclined with respect to the central axis SA.

A surface formed by the outer periphery of the upper end of the discharge panel 161 is parallel or almost parallel to a surface formed by the outer periphery of the lower end of the discharge panel 161, so that the air discharged to the discharge port 160a is discharged toward the front upper side.

The size of the surface formed by the outer periphery of the upper end of the discharge panel 161 is larger than the size of the surface formed by the outer periphery of the lower end of the discharge panel 161. The discharge panel 161 is formed such that an inflow area into which air flows is smaller than a discharge area from which air is discharged. The discharge panel 161 is formed such that a flow path of the air flow becomes wider toward the upper side, so that the discharged air is widely diffused.

The console section 165 is disposed above the discharge port 160a so as to cover a part of the rear side of the discharge port 160 a. The console section 165 is coupled to the rear upper side of the discharge panel 161.

An upper surface of the console section 165 is formed to be perpendicular to the center axis SA (i.e., parallel to the floor surface), and a lower surface of the console section 165 corresponds to a shape formed by the front inner surface of the discharge panel 161. The upper surface of the console section 165 is rectangular. The lower surface of the console section 165 has an arcuate shape, and becomes more parallel to the floor surface from the lower side to the upper side of the lower surface of the console section 165. The lower surface of the console section 165 guides the air discharged through the discharge port 160a as forward as possible. The lower surface of the console section 165 serves to prevent air discharged through the discharge port 160a from being directed rearward and to prevent air discharged through the discharge port 160a from directly flowing into the suction port 130a again.

The flow of air through the duct 151, the discharge panel 161, and the console section 165 will be described later with reference to fig. 18.

The illumination unit 166 includes a light source for emitting light, and the illumination unit 166 irradiates the emitted light to an upper portion of the inner surface of the discharge panel 161. The detailed description of the illumination section 166 will be made later with reference to fig. 18 to 20.

An inner panel coupling protrusion 181-1 protruding downward is formed at the lower end of the blower main body 181, an inner panel coupling protrusion insertion portion 129a is formed at the upper end of the inner panel 129, and the inner panel coupling protrusion insertion portion 129a is opened so that the inner panel coupling protrusion 181-1 is inserted. The blower unit 180 is coupled to the inner panel 129 of the body 120 by inserting the inner panel coupling protrusion 181-1 into the inner panel coupling protrusion insertion portion 129 a.

It is preferable that hooks are formed at the lower ends of the inner panel coupling protrusions 181-1 to allow the inner panel coupling protrusions 181-1 to be hung on the inner panel coupling protrusion insertion parts 129 a.

Preferably, the inner panel coupling protrusion 181-1 is inserted into the inner panel coupling protrusion insertion portion 129a to couple the air blowing unit 180 to the inner panel 129 of the body 120, and then the air blowing unit 180 is fastened to the inner panel 129 of the body 120 by a separate bolt connection.

Fig. 6 is an exploded perspective view of a part of the air cleaner shown in fig. 1, and fig. 7 is a view showing a state in which a part of the structures of the air cleaner shown in fig. 1 are combined.

A duct coupling protrusion 121-1 protruding downward is formed on an inner surface of the front panel 121, and a duct coupling protrusion insertion part 151-1 is formed on an outer surface of the duct 151, and the duct coupling protrusion insertion part 151-1 is opened such that the duct coupling protrusion 121-1 is inserted. The front panel 121 is coupled to the duct 151 by inserting the duct coupling protrusion 121-1 into the duct coupling protrusion insertion part 151-1.

Preferably, after the front panel 121 is combined with the duct 151, the front panel 121 is fastened to the inner panel 129 by a separate bolt connection.

A rear panel coupling protrusion 121-2 protruding upward is formed at a side end of the inner surface of the front panel 121, a rear panel coupling protrusion insertion portion 122-2 is formed at a side end of the inner surface of the rear panel 122, and the rear panel coupling protrusion insertion portion 122-2 is opened so that the rear panel coupling protrusion 121-2 is inserted. The rear panel 122 is coupled with the front panel 121 by inserting the rear panel coupling protrusion 121-2 into the rear panel coupling protrusion inserting part 122-2.

Preferably, after the rear panel coupling protrusion 121-2 is inserted into the rear panel coupling protrusion insertion part 122-2, the front panel 121 is fastened to the rear panel 122 by a separate bolt connection.

As shown in fig. 5, duct 151 is coupled to the upper side of air blowing unit 180 after air blowing unit 180 is fastened to inner panel 129 of main body 120. Preferably, after the duct 151 is combined with the front panel 121, the front panel 121 is fastened with the inner panel 129, and the rear panel 122 is combined with the front panel 121 for assembly.

Fig. 8A is an exploded perspective view of a filter unit of the air purifier shown in fig. 1, fig. 8B is a side sectional view of the filter unit shown in fig. 8A, fig. 9 is a front view of the filter unit shown in fig. 8A, and fig. 10A and 10B are installation example views of the filter unit shown in fig. 8A.

The filter unit 140 according to an embodiment of the present invention is disposed in the suction unit 130 to be inclined inside the body 120, and has an elliptical outer circumference of a filter surface through which air passes. The filter unit 140 is placed on the suction grill 132-1 to be arranged in such a manner that the filter surface is inclined with respect to the central axis SA.

The filter surface of the filter unit 140 is inclined upward compared to the surface formed on the outer periphery of the suction port 130 a. The surface formed by the outer periphery of the inlet 130a is more inclined than the filtering surface of the filtering unit 140 with respect to the horizontal plane. Since the air flowing forward and upward through suction port 130a flows upward in air blowing unit 180, filter unit 140 disposed between suction port 130a and air blowing unit 180 is preferably disposed to be more horizontal than suction port 130 a.

Preferably, the filter unit 140 is disposed such that a surface formed on the outer periphery of the discharge port 160a is inclined upward with respect to the filter surface of the filter unit 140. Preferably, the filtering surface of the filter unit 140 is more inclined than the surface formed by the outer circumference of the discharge port 160a with respect to the horizontal plane.

As shown in fig. 8A, the outer periphery of the filtering surface of the filtering unit 140 is preferably formed in an egg shape in which the short axis V is not arranged at the center of the long axis H. That is, it is preferable that the minimum curvature of the upper portion is smaller than the minimum curvature of the lower portion in the shape formed by the outer periphery of the filtering surface.

Preferably, the outer shape of the filter unit 140 is also in the form of an egg corresponding to the shape of the outer periphery of the filter surface. Preferably, the outer shape of the filter unit 140 is formed in a shape in which the minimum curvature of the upper portion is smaller than the minimum curvature of the lower portion to bias the center of gravity G of the outer shape of the filter unit 140 toward the lower portion.

Since the center of gravity G of the filter unit 140 is biased to the lower portion, the filter unit 140 is tilted and stably slid along the upper surface of the suction grill 132-1 when the filter unit 140 is mounted. That is, the upper portion of the filter unit 140 is placed askew on the upper surface of the suction grill 132-1, not inclined forward. Also, even after the filter unit 140 is installed, the filter unit 140 is prevented from being inclined.

The filter unit 140 according to an embodiment of the present invention includes: a pre-filter 141 for filtering foreign materials in the air; a high efficiency air filter body 142 laminated on the upper side of the pre-filter 141 to form a housing space; a high efficiency air filter 146 disposed in the high efficiency air filter main body 142 for collecting dust of pollutants in the air;

deodorizing filters

147 and 148 laminated on the upper side of the high efficiency air filter 146 for removing the bad smell in the air; and a deodorizing filter body 143 laminated on the upper sides of the deodorizing filters 147, 148 and coupled to the high efficiency air filter body 142.

The pre-filter 141 is formed with a grill, and the pre-filter 141 filters foreign substances in the air sucked through the suction port 130a for the first time. The pre-filter 141 is laminated on the suction grill 132-1. A pre-filter protrusion 141-1 protruding from the pre-filter 141 is formed at the rear side of the pre-filter 141. The pre-filter protrusion 141-1 is exposed to the outside through the filter confirmation part 131 b. The pre-filter protrusion 141-1 is inserted into the opened filter confirmation part 131 b.

An opening is formed in the middle of the high efficiency air filter main body 142, and the edges of the high efficiency air filter main body 142 are used to place the high efficiency air filter 146 and the deodorizing filters 147, 148. The open portion of high efficiency air filter body 142 is formed in an elliptical shape corresponding to suction port 130 a. The high efficiency air filter main body 142 is laminated on the pre-filter 141.

A high efficiency air filter protrusion 142-1 is formed at the rear side of the high efficiency air filter main body 142, and the high efficiency air filter protrusion 142-1 protrudes from the high efficiency air filter main body 142 and is laminated on the pre-filter protrusion 141-1. The high efficiency air filter projection 142-1 is exposed to the outside through the filter confirmation part 131 b. The high efficiency air filter projection 142-1 is inserted into the opened filter confirmation part 131 b.

The high efficiency air filter 146 is inserted into the high efficiency air filter main body 142, and collects pollutants of the air sucked through the suction port 130 a. Deodorizing filters 147 and 148 are inserted into high efficiency air filter main body 142 so as to be laminated on high efficiency air filter 146. The deodorizing filters 147, 148 remove the bad smells in the air sucked through the suction port 130 a.

High efficiency air filter 146 and

deodorizing filters

147 and 148 have an elliptical shape corresponding to suction port 130a, and thus purify air sucked through suction port 130a to the maximum.

Preferably, a plurality of

deodorizing filters

147, 148 are provided, and the plurality of

deodorizing filters

147, 148 include a first deodorizing filter 147 and a second deodorizing filter 148 laminated on the first deodorizing filter 147.

The high efficiency air filter 146 and the deodorizing filters 147, 148 form the filtering surfaces as described above.

The deodorizing filter body 143 is stacked on the upper sides of the deodorizing filters 147 and 148, and is detachably fastened to the high efficiency air filter body 142. A grill is formed in the middle of the deodorizing filter body 143 to prevent the deodorizing filters 147, 148 from protruding upward.

A deodorizing filter protrusion 143-1 is formed at the rear side of the deodorizing filter body 143, and the deodorizing filter protrusion 143-1 protrudes from the deodorizing filter body 143 and is laminated on the high efficiency air filter protrusion 142-1. Preferably, a portion of the deodorizing filter projection 143-1 is recessed in such a manner that it can be held by a user. The deodorizing filter projection 143-1 is exposed to the outside through the filter checking portion 131 b. The deodorizing filter projection 143-1 is inserted into the opened filter confirming portion 131 b.

The pre-filter protrusion 141-1, the hepa filter protrusion 142-1, and the deodorizing filter protrusion 143-1 are exposed to the outside through the filter confirming portion 131b to prevent a user from missing a certain component when the user replaces the hepa filter 146 or the deodorizing filters 147, 148.

As shown in fig. 10A, when all the components of the filter unit 140 are complete, the pre-filter protrusion 141-1, the high efficiency air filter protrusion 142-1, and the deodorizing filter protrusion 143-1 are exposed to the outside through the filter checking portion 131 b. As shown in fig. 10B, when the pre-filter 141 is omitted, only the high efficiency air filter projection 142-1 and the deodorizing filter projection 143-1 are exposed to the outside through the filter checking portion 131B.

As shown in FIG. 10A, the rear ends of the pre-filter projection 141-1, the high efficiency air filter projection 142-1 and the deodorizing filter projection 143-1 are inclined with respect to the filtering surface. That is, rear ends of the pre-filter protrusion 141-1, the high efficiency air filter protrusion 142-1, and the deodorizing filter protrusion 143-1 are inclined with respect to the direction of air flow in the filter unit 140.

Since the filter unit 140 is inclined, the pre-filter protrusion 141-1, the high efficiency air filter protrusion 142-1, and the deodorizing filter protrusion 143-1 exposed through the filter confirmation part 131b are inclined to be integrated with the suction panel 131 of the suction unit 130.

Fig. 11 is an installation example view of a filter unit of the air purifier shown in fig. 1, fig. 12 is a partial configuration view of a lower portion of the air purifier shown in fig. 1, and fig. 13 is a partial configuration view of an inside of the air purifier shown in fig. 1.

The suction unit 130 according to an embodiment of the present invention is rotatably combined with the body 120 to open and close the inside of the body 120. The suction unit 130 is opened downward and rearward from the body 120 so that the filter unit 140 can be inserted into the body 120 or the filter unit 140 can be attached to and detached from the body 120.

The suction unit 130 is rotatably coupled to the base 110 and coupled to the body 120 by means of a crank link. The suction panel 131 of the suction unit 130 is formed with a base coupling pin 131-3 rotatably coupled with the base 110. The base coupling pin 131-3 protrudes inward from the inner surface of the lower end of the suction panel 131.

The base 110 is formed with a suction panel coupling portion 113 coupled with the base coupling pin 131-3. The suction panel coupling portion 113 is formed with a base coupling pin insertion groove 113a into which the base coupling pin 131-3 is inserted. The base coupling pin insertion groove 113a is formed with an arc-shaped opening to allow the base coupling pin 131-3 to slide.

The base coupling pin 131-3 is rotatably and slidably coupled with the base coupling pin insertion groove 113 a. Thus, the suction panel performs a rotational motion and a translational motion together with respect to the body 120, and thus is not interfered by the front panel 121 and the rear panel 122 of the body 120 to rotate.

The suction unit 130 according to an embodiment of the present invention further includes a link portion 139 as a crank link coupled to the body 120. The link part 139 is formed with a rotary joint in the middle, the link part 139 is rotatably coupled with the inner panel 129 of the body 120, and the link part 139 is rotatably coupled with the suction panel 131.

The link portion 139 is formed with a link protrusion 139-9 protruding upward at a portion coupled to the inner panel 129 of the body 120. A link stopper 129-9 is formed on an inner surface of the inner panel 129 of the body 120, and the link stopper 129-9 stops the link protrusion 139-9 when the suction unit 130 rotates. When the suction unit 130 is opened, the link protrusion 139-9 is caught to the link stopper 129-9 to prevent the suction unit 130 from rotating more than a certain degree. The rear end of the suction panel 131 is prevented from contacting the bottom surface due to the excessive rotation of the suction unit 130 by the link protrusion 139-9 being caught to the link stopper 129-9.

As shown in fig. 13, the suction body 132 is formed with a filter fixing portion 132-9, and the filter fixing portion 132-9 is protruded from the filter supporting portion 132-2 in a direction parallel to a plane formed by the suction grill 132-1, for fixing a portion of the filter unit 140. The filter holder 132-9 is in contact with the upper portion of the front end of the filter unit 140 to prevent the filter unit 140 from being separated to the upper front side when the filter unit 140 is placed on the suction grill 132-1.

As shown in fig. 11, the interior of the body 120 is opened by the suction unit 130 rotating from the body 120. The user can mount the filter unit 140 to the inside of the body 120 through the opened portion or detach the filter unit 140 from the inside of the body 120. In the case of mounting the filter unit 140 inside the body 120, when the user pushes the filter unit 140 into the opened portion, the filter unit 140 is placed on the upper side of the suction grill 132-1 through the filter support part 132-2 after sliding along the suction grill 132-1. Even if the user closes the suction unit 130 after installing the filter unit 140 in the suction unit 130, the filter unit 140 is prevented from being tilted or being separated to the front upper side by the filter fixing portion 132-9 because the center of gravity G of the filter unit 140 is low.

Fig. 14 is a partial sectional view of the air cleaner shown in fig. 1, fig. 15 is a rear view of an air blowing main body of the air cleaner shown in fig. 1, fig. 16 is a perspective view of a blowing fan of the air cleaner shown in fig. 1, and fig. 17 is a partial configuration view of an air blowing unit of the air cleaner shown in fig. 1.

The blower fan 182 rotates by a motor 189 to flow air. The blowing fan 182 sucks air through the suction port 130a and discharges the air through the discharge port 160 a.

Blade 183 is disposed above blower fan 182. A blower main body 181 is disposed on the outer periphery and lower side of the blower fan 182. As shown in fig. 16, in the present embodiment, the blower fan 182 is a centrifugal fan that sucks air from the lower side, which is the suction unit 130 side, and discharges the sucked air to the side through the discharge port 160 a. Since the centrifugal fan maximizes the amount of air blown by the centrifugal fan as compared with other fans having the same rotation speed and size, the centrifugal fan is preferably used as the blowing fan.

The blowing fan 182 includes: a protective cover 182-1 for allowing air to flow in; a plurality of fan blades 182-2 arranged on the upper side of the protective cover 182-1 in a manner of being spaced apart along the circumferential direction; and a pivot 182-3 coupled to the motor 189 for fixing the plurality of fan blades 182-2.

The shield 182-1 is formed in an orifice shape in which the flow path becomes narrower toward the lower side. The lower end of the protective cover 182-1 is rounded. The protective cover 182-1 is coupled to respective lower ends of the plurality of fan blades 182-2.

When the fan 182-2 rotates, the fan 182-2 moves the air flowing in through the shield case 182-1 to the side. As shown in fig. 7, the fan piece 182-2 is formed by bending a trailing edge (trailing edge) as a side of the discharged air in a diagonal direction for making the discharged air flow upward as much as possible.

Preferably, the fan 182-2 is formed such that a leading edge (leading edge) as an air inflow side is considerably shorter than a trailing edge to make the discharged air flow upward as much as possible. The upper end of the fan 182-2 is connected to the pivot 182-3 and the lower end of the fan 182-2 is connected to the protective cover 182-1.

The pivot 182-3 is spaced apart from the shield 182-1. The pivot 182-3 is connected to a motor 189. Preferably, a relatively steep inclination is formed at the outer diameter of the pivot shaft 182-3 to make the air discharged by the fan 182-2 flow upward as much as possible. That is, it is preferable that the outer diameter of the pivot shaft 182-3 is more sharply reduced toward the shield case 182-1 side from the motor 189 side. The pivot 182-3 is connected to respective upper ends of the plurality of fan blades 182-2.

The air discharged from the blowing fan 182, which is a centrifugal fan, smoothly flows upward due to the outer diameter shape of the pivot shaft 182-3, the shape of the fan piece 182-2, and the closed side surface of the blowing main body 181 as described above.

The blower body 181 surrounds the lower side and the outer periphery of the blower fan 182, and guides the air discharged to the side surface of the blower fan 182 to the upper side, which is the discharge unit 160 side. An air-blowing grill 181-3 for passing air flowing into the protective cover 182-1 is formed on a lower surface of the air-blowing main body 181. The side surface of the blowing main body 181 is formed as a wall without an opening, and the air discharged to the side surface of the blowing fan 182 is guided upward.

A space forming portion 181-9 recessed downward in an annular shape is formed around the air blowing grill 181-3 on the lower surface of the air blowing main body 181. The space forming part 181-9 has a space B spaced apart from the lower end of the protection cover 182-1. The space forming part 181-9 forms a space B between the lower end of the protection cover 182-1 and the lower surface of the blower main body 181 so that the air flowing downward from the rear edge of the fan blade 182-2 flows upward again, thereby suppressing the generation of noise and improving efficiency. That is, among the air discharged through the fan piece 182-2, the air flowing into the space B formed by the space forming portion 181-9 flows into the protection cover 182-1.

The blade 183 is moved by the blower fan 182 to guide the air guided upward by the blower main body 181. The air passing through the vane portions 183 is guided to the duct 151, and flows toward the discharge unit 160.

A motor 189 is disposed at an intermediate portion of the blade 183. A blower fan 182 is disposed below the blade 183. The outer circumference of the lower end of the blade 183 is coupled to the outer circumference of the upper end of the blower main body 181.

The blade 183 includes a plurality of blades 183-1, and the plurality of blades 183-1 are arranged at the edge of the blade 183 so as to be spaced apart in the circumferential direction. The blade 183-1 is formed in a plate shape vertically standing. Each longitudinal direction of the plurality of blades 183-1 is directed toward the center of the blade 183. The air guided upward by the blower main body 181 is made to flow upward by the blades 183-1.

Referring to fig. 17, the vane 183-1 is formed of a wing (air foil) bent in a direction in which the rear edge of the fan 182-2 is bent. Thus, the vane 183-1 can reduce noise and make the air discharged by the fan 182-2 flow upward well.

The lower side of the motor cover 184 is coupled to the motor 189, and the motor cover 184 is coupled to the upper side of the blade 183. The motor cover 184 is formed in a dome shape with a middle portion protruding upward to prevent a turbulent flow from occurring when air discharged to the edges of the blade portions 183 flows into the duct 151.

The air blowing unit 180 further includes an ion generator 185, and the ion generator 185 is disposed on the motor cover 184 to ionize air flowing to the air blowing fan 182. Preferably, a plurality of ionizers 185 are provided at the middle portion of the motor cover 184.

Fig. 18 is a partial sectional view of an upper portion of the air purifier shown in fig. 1, fig. 19 is a perspective view of the air purifier shown in fig. 1, and fig. 20 is an operation schematic view of an illumination portion of the air purifier shown in fig. 1.

The duct 151 guides air flowing upward by the air blowing unit 180 to the discharge unit 160. A plane formed by the outer periphery of the lower end of the duct 151 is perpendicular to the symmetry axis SA, and a plane formed by the outer periphery of the upper end of the duct 151 is inclined with respect to the symmetry axis, so that the air flowing upward by the air blowing unit 180 is guided forward and upward.

The duct 151 has a front end length L1 shorter than a rear end length L2, and guides the air flowing upward by the air blowing unit 180 to a side facing the surface formed on the outer periphery of the discharge port 160a, that is, to the front upper side.

The size of the surface formed by the outer periphery of the upper end of the duct 151 is smaller than the surface formed by the outer periphery of the lower end of the duct 151. That is, the duct 151 is formed so that the flow path of the air flow becomes narrower toward the upper side.

A plane formed by the outer circumference of the lower end of the discharge panel 161 combined with the upper side of the duct 151 is inclined with respect to the symmetry axis SA, and a plane formed by the outer circumference of the upper end of the discharge panel 161 is inclined with respect to the symmetry axis SA. A surface formed by the outer periphery of the upper end of the discharge panel 161 and a surface formed by the outer periphery of the lower end of the discharge panel 161 face in the same direction. That is, a surface formed by the outer periphery of the upper end of the discharge panel 161 and a surface formed by the outer periphery of the lower end of the discharge panel 161 face upward in the forward direction.

The console section 165 adjusts the discharge direction of the air discharged through the discharge port 160a formed by the discharge panel 161. The lower surface of the console section 165 becomes more parallel to the floor surface from the lower side to the upper side. That is, the lower surface of the console section 165 becomes more perpendicular to the axis of symmetry SA from the lower side to the upper side, and the air discharged to the rear of the discharge port 160a is guided forward as much as possible.

The lower surface of the console section 165 is formed in a shape corresponding to the shape formed by the front inner surface of the discharge panel 161. Accordingly, the air discharged through the discharge port 160a of the discharge panel 161 is discharged to the front upper side.

Fig. 19 is a perspective view of the air purifier shown in fig. 1.

The illumination unit 166 is disposed on a lower surface of the console unit 165 and irradiates the discharge panel 161 with light. The thickness of the lighting unit 166 is preferably as thin as possible to prevent interference with air flowing along the lower surface of the console unit 165. Preferably, the illuminating part 166 has a circular shape so that light can be uniformly irradiated to the discharge panel 161. A light source is disposed inside the illumination section 166, and in the present embodiment, the light source is preferably a Light Emitting Diode (LED). Preferably, the illumination section 166 illuminates light of various colors.

The discharge panel 161 has at least one cross section of an elliptical shape, and an upper portion of an inner surface of the discharge panel 161 is exposed to the outside to reflect light emitted from the illumination section 166 in an elliptical ring R shape. As described above, the size of the surface formed by the outer periphery of the upper end of the discharge panel 161 is larger than the size of the surface formed by the outer periphery of the lower end of the discharge panel 161, so that the light irradiated from the illumination portion 166 is reflected on the inner side surface of the outer periphery of the upper end of the discharge panel 161.

The discharge panel 161 is used to reflect the light irradiated from the illumination section 166 in the direction of the air discharged to the discharge port 160 a. That is, the discharge panel 161 reflects the light irradiated from the illumination section 166 toward the front upper side. A surface formed by light in the form of an elliptical ring R reflected on the discharge panel 161 and a surface formed by the outer periphery of the discharge port 160a are parallel to each other.

The console section 165 includes: an operation unit 165-1 disposed on an upper surface of the console unit 165 perpendicular to the axis of symmetry SA, for receiving a user input; and a display unit 165-2 disposed on an upper surface of the console unit 165 for displaying an operating state of the air cleaner. Preferably, the display part 165-2 displays the operation state of the air purifier by emitting light. The display portion 165-2 may emit light of various colors, and preferably, the display portion 165-2 emits light of the same color as the light irradiated by the illumination portion 166.

Preferably, the illumination unit 166 illuminates lights having different colors according to the degree of contamination of the air sucked into the suction port 130 a. A contamination sensor (not shown) for measuring a contamination level of air sucked into the suction port 130a is disposed in the suction unit 130 or the main body 120, and the illumination section 166 irradiates lights having different colors according to the contamination level measured by the contamination sensor. For example, in the case where the degree of air pollution is high, the illumination section 166 illuminates red so that the elliptical ring R appears red, and in the case where the degree of air pollution is low, the illumination section 166 illuminates green so that the elliptical ring R appears green. The display 165-2 emits red light when the degree of air pollution is high, and emits green light when the degree of air pollution is low.

The operation of the air cleaner as described above will be explained as follows.

When the blower fan 182 is rotated by the motor 189, external air is sucked through the suction port 130a of the suction unit 130. The air outside the rear lower side of the air cleaner is sucked in through the suction port 130a toward the front upper side.

The air sucked through the suction port 130a causes foreign substances to be filtered by passing through the pre-filter 141 of the filter unit 140, the air causes the polluted substances to be dust-collected by passing through the high efficiency air filter 146, and the bad smells to be removed by passing through the deodorizing filters 147, 148.

The air purified by the filter unit 140 flows upward along the inner panel 129, and flows toward the blower grill 181-3 of the blower main body 181.

The air passing through the blower grill 181-3 is discharged through the rear edge of the fan piece 182-2 after flowing into the protective cover 182-1. The air discharged through the fan blades 182-2 flows upward by the side surfaces of the blower main body 181 and upward by the blades 183-1 of the blade portions 183. At this time, among the air discharged through the fan piece 182-2, the air flowing downward flows into the protection cover 182-1 again through the space B formed by the space forming portion 181-9 of the blower main body 181.

Air passing through the vane 183-1 flows in from the upper side duct 151 of the motor cover 184. The air flowing into the duct 151 is guided to the front upper side and discharged through the discharge port 160a of the discharge panel 161.

The air discharged through the discharge port 160a of the discharge panel 161 is discharged to the front upper side of the air cleaner through the lower portions of the discharge panel 161 and the console section 165.

The technical idea described above can be applied not only to an air cleaner but also to an air conditioner for moving air and a device similar to the air conditioner.

While the preferred embodiments of the present invention have been illustrated and described, it is to be understood that the present invention is not limited to the specific embodiments described above, and various modifications may be made by those skilled in the art without departing from the spirit of the present invention claimed in the claims.

Claims

1. An air purifier, comprising:

a body, wherein a suction inlet for sucking air is formed at the lower part of the body;

a discharge unit provided at an upper portion of the body and having a discharge port for discharging air sucked into the suction port;

a filter unit arranged in the main body for purifying the air sucked from the suction inlet;

an air supply unit disposed above the filter unit and configured to flow the air purified by the filter unit; and

a duct provided above the air blowing unit for guiding the air flowing through the air blowing unit to the discharge unit,

the air supply unit includes:

a motor for generating a rotational force;

a centrifugal fan rotated by the motor to flow air;

a blower main body provided on the outer periphery of the centrifugal fan, and having a blower grill formed on a lower surface thereof to allow air purified by the filter unit to pass therethrough; and

a blade unit coupled between the blower main body and the duct, the blade unit having a plurality of blades arranged at intervals in a circumferential direction and guiding air flowing into the duct,

the centrifugal fan includes:

a protective cover having a circular lower end for allowing air to flow therein, the cross-sectional area of the flow path increasing toward the upper side;

a pivot shaft which is arranged apart from the protective cover, is combined with the motor, and is formed into an inclined state so as to enable the discharged air to flow towards the upper side; and

a plurality of fan blades, the upper ends of the fan blades are connected with the pivot, the lower ends of the fan blades are connected with the protective cover, the fan blades are arranged on the upper side of the protective cover in a manner of being separated along the circumferential direction,

the air supply main body guides the air discharged from the centrifugal fan to the upper side,

a space for arranging the motor is formed at the center of the blade part,

the plurality of blades are arranged to stand vertically, and guide air guided by the air blowing main body upward.

2. The air purifier of claim 1,

the surface formed by the outer periphery of the discharge port is formed in a manner of facing to the front upper side:

the duct guides air flowing vertically upward through the blade portion toward the front upper side.

3. The air purifier of claim 1,

the surface formed by the outer periphery of the lower end of the pipeline is formed in a horizontal mode, and the surface formed by the outer periphery of the upper end of the pipeline is formed in an inclined mode.

4. The air purifier of claim 3,

the size of the surface formed by the outer periphery of the upper end of the pipe is smaller than the size of the surface formed by the outer periphery of the lower end of the pipe.

5. The air purifier of claim 1,

the duct has a flow path for flowing air that is narrower toward the upper side.

6. The air purifier of claim 1, further comprising:

the air discharged through the fan blade flows to the upper side through the side surface of the air supply main body.

7. The air purifier of claim 6,

the outer diameter of the pivot shaft decreases from the motor side toward the protective cover side.

8. The air purifier of claim 7,

the pivot causes the air discharged by the plurality of fan blades to flow toward the plurality of blades.

9. The air purifier of claim 6,

the plurality of fan blades are formed such that the front edge on the air inflow side is shorter than the rear edge on the air discharge side.

10. The air purifier of claim 6,

the motor is disposed in the pivot.

11. The air purifier of claim 1,

a space forming part which is recessed downwards in an annular shape is formed around the air supply grille of the air supply main body.

12. The air purifier of claim 11,

the space forming portion forms a space between a lower end of the protective cover and a lower surface of the air blowing main body, so that air flowing from the fan blade to the outside of the protective cover flows into the protective cover through the space formed between the lower end of the protective cover and the lower surface of the air blowing main body.

13. The air purifier of claim 1,

the plurality of blades are each formed in a plate shape, and are arranged such that the longitudinal direction of the plurality of blades is directed toward the center of the blade portion.

14. The air purifier of claim 1, further comprising:

a motor cover combined with the upper side of the blade part for covering the motor,

the air passing through the plurality of blades flows into the duct from the upper side of the motor cover.

15. The air purifier of claim 1,

the motor is arranged at the center side of the blade part;

the air discharged from the centrifugal fan flows to the outer periphery of the motor.