CN-113996124-B - Portable air purifier

CN113996124BCN 113996124 BCN113996124 BCN 113996124BCN-113996124-B

Abstract

The invention relates to a portable air purifier, which comprises a cover body part, a discharge part, a rotary supporting part and a rotary guiding part, wherein the cover body part is provided with an inlet part for sucking air, the filtering part and a fan module part are positioned on the inner side of the cover body part, an air flow path is formed along the vertical direction, the discharge part is positioned at a discharge outlet of the cover body part and guides the discharge direction of air, the rotary supporting part is connected with the cover body part and can rotatably support the discharge part in a limited movement way, and the rotary guiding part is respectively arranged on the discharge part and the rotary supporting part and guides the rotation of the discharge part to rotate within a prescribed angle.

Inventors

An Chengyou
Jin Tongken
Wu Minkui
LI DEYUAN
JIN DAXIONG
Quan Fuyan

Assignees

LG电子株式会社

Dates

Publication Date: 20260508
Application Date: 20210720
Priority Date: 20200728

Claims (12)

1. A portable air purifier, comprising: A cover body part provided with an inlet part for sucking air, a filtering part and a fan module part are positioned at the inner side of the cover body part, and an air flow path is formed along the up-down direction; A discharge part, which is positioned at the discharge port of the cover body part and guides the discharge direction of air; A position notification unit that, when the discharge unit is positioned at a predetermined position, forms a lock with the discharge unit and provides an operation feeling; A rotation support part connected to the cover part for restricting movement and rotatably supporting the discharge part, and A rotation guide unit provided to the discharge unit and the rotation support unit, respectively, and configured to guide rotation of the discharge unit such that the discharge unit rotates within a predetermined angle; The rotation support portion includes: a core member positioned below the discharge portion and extending from the center of the discharge port in a direction toward the discharge portion; A core support part extending to the outside of the core member and fixed to the inside of the cover part, the core support part being restricted in movement together with the core member, and A spherical joint, the lower side of which is coupled to the core member and the movement of which is restricted, and the upper side of which is inserted into the inner side of the discharge portion to rotatably support the discharge portion; the position notification unit includes: a notification protrusion provided with a moving protrusion for applying pressure to the outside of the ball joint by means of elastic force, the moving protrusion protruding to the outside of the ball joint when the discharge portion is located at a predetermined position, and And a notification groove portion in which the movement protrusion is inserted and a locking groove is formed on an inner side of the discharge portion facing the notification protrusion.
2. The portable air purifier as recited in claim 1, wherein, The outer side of the core member is formed in a curved surface, and the cross-sectional area of the core member becomes gradually smaller as going from the lower side thereof connected to the core supporting portion toward the direction of the ball joint.
3. The portable air purifier as recited in claim 1, wherein, The core member is provided in the shape of a cone, and the cross-sectional area of the core member becomes gradually smaller as approaching the upper side thereof.
4. The portable air purifier as recited in claim 1, wherein, The rotation guide portion includes: a guide projection connected to or integrally formed with the ball joint and projecting outward of the ball joint, and A guide groove portion having a concave groove formed on an inner side of the discharge portion facing the guide projection; the guide projection is inserted into the guide groove, and the guide projection is engaged with the guide groove to restrict the discharge portion from rotating by a predetermined angle or more.
5. The portable air purifier as recited in claim 4, wherein, The discharge unit includes: a discharge main body portion located at a discharge port of the cover body portion, for guiding a discharge direction of air; A first support part connected with or formed integrally with the discharge main body part and provided with a first curved surface groove of a concave groove shape, and A second support part coupled to the first support part, wherein a second curved groove connected to the first curved groove is provided inside the second support part; the spherical joint is located in an inner space formed by the first curved groove and the second curved groove, and rotatably supports the first support portion and the second support portion.
6. The portable air purifier as recited in claim 5, wherein, The guide groove portion is provided to face at least one of the first support portion and the second support portion of the ball joint.
7. The portable air purifier as recited in claim 1, wherein, The notification boss includes: A first adjusting bolt fastened to the underside of the mounting hole portion of the ball joint, and And an inner elastic member whose lower side is supported by the first adjusting bolt and whose upper side supports the moving protrusion, the moving protrusion being pressurized by an elastic force.
8. A portable air purifier, comprising: A cover body part provided with an inlet part for sucking air, a filtering part and a fan module part are positioned at the inner side of the cover body part, and an air flow path is formed along the up-down direction; a discharge main body portion located at a discharge port of the cover body portion, for guiding a discharge direction of air; A position notification unit that, when the discharge main body portion is positioned at a predetermined position, forms a lock with the discharge main body portion and provides an operation feeling; a first support portion connected to or integrally formed with the discharge main body portion and provided with a first curved surface groove having a concave groove shape; A second support part coupled to the first support part, a second curved surface groove connected to the first curved surface groove being provided inside the second support part, and A rotation support part, one side of which is connected with the cover body part, and the other side of which is arranged at a position facing the first curved surface groove and the second curved surface groove, and rotatably supports the first support part and the second support part; The rotation support portion includes: a core member located below the second support portion and extending from the center of the discharge port in a direction toward the second support portion; A core support part extending to the outside of the core member and fixed to the inside of the cover part, the core support part being restricted in movement together with the core member, and A spherical joint whose lower side is coupled to the core member to be restricted in movement and whose upper side is positioned inside the first curved surface groove and the second curved surface groove, the spherical joint rotatably supporting the first support portion and the second support portion; the position notification unit includes: A notification protrusion provided with a moving protrusion for applying pressure to the outside of the ball joint by means of elastic force, the moving protrusion protruding to the outside of the ball joint when the discharge main body is located at a predetermined position, and And a notification groove portion in which the movement protrusion is inserted and a locking groove is formed on an inner side of the discharge main body portion facing the notification protrusion.
9. The portable air purifier as recited in claim 8, wherein, The first support portion includes: a first support body having a concave groove shape, the first curved groove being provided inside the first support body, the first support body being fixed to the center of the discharge body portion, and A first wing member extending outward of the first support body and facing the second support portion; The fixation of the first wing member and the second support portion is achieved by fastening of a fastening member.
10. The portable air purifier as recited in claim 8, wherein, The second support part comprises a second support main body, wherein the second support main body is provided with a hollow part communicated in the up-down direction and is arranged along the circumferential direction; the second curved groove is formed on an inner side of the second support body facing the hollow portion.
11. The portable air purifier as recited in claim 8, wherein, The ball joint is located inside a ball-shaped groove formed by the first curved groove and the second curved groove, The outer diameter of the spherical joint is larger than the inner diameter of the lower end of the second curved groove so as to prevent the spherical joint from being separated to the outer side of the second supporting part.
12. The portable air purifier as recited in claim 11, wherein, The friction force between the first support portion and the spherical joint and the friction force between the second support portion and the spherical joint are inversely proportional to the interval between the first support portion and the second support portion provided in a shape opposing each other across the spherical joint.

Description

Portable air purifier Technical Field The present invention relates to a portable air cleaner, and more particularly, to a portable air cleaner in which a discharge portion for discharging air upward is rotatably provided. Background An air purifier is widely used in modern life, and is a device for purifying air by filtering physical particles such as dust, tiny dust and ultra-tiny dust, chemical substances such as peculiar smell particles and harmful gases, and microorganisms such as bacteria and viruses. Air cleaners are also becoming an indispensable device in general households due to the influence of urbanization, industrialization, internationalization, and the like. In addition, the demand for air cleaners has also sharply increased with the effects of an increase in dust particles, an increase in allergic patients, and an increase in standard of living. When the air cleaner is used in an environment of 100m2 or more, for example, a general house, the size of the apparatus can be increased. Such a device can use a combination of a filter for physical particles such as dust, a filter for chemical substances such as gas, and a filter for microorganisms such as bacteria and viruses. That is, a large-sized air cleaner capable of accommodating a combination of various filters can be used in a large space. But when using large-sized air cleaners in smaller spaces, such as apartments, vehicle interiors, space usage, mobility, energy consumption may be inefficient. In addition, an air purifier that is small in size and usable by an individual is more suitable than an air purifier of a large size for users who move frequently. Against this background, portable air cleaners are being developed that can be carried for use by individuals. The portable air purifier is provided in a small-sized and lightweight form to be easily carried. Such a portable air purifier has advantages in that it can be conveniently carried by a user and simply used at a desired place. That is, the portable air purifier is more suitable for users who go out frequently or move in life patterns in a plurality of places than users who stay in one place like home for a long time. In the related art (korean laid-open patent publication 2020-0037187), air is sucked from the back side and air is discharged from the front side of a portable air cleaner. However, the portable air purifier has a problem in that a rotatable additional discharge portion cannot be provided for adjusting the discharge direction of air because the external dimensions of the product are set so as to be portable. Thus, there is a need for improvement. The background art of the present invention is disclosed in korean laid-open patent publication No. 2020-0037187 (publication date: 2020.04.08, title of the invention: portable air purifier). Disclosure of Invention The invention aims to provide a portable air purifier which is provided with a rotatable discharge part for guiding the discharge of air. Another object of the present invention is to provide a portable air cleaner capable of preventing damage to an electric wire connected to a discharge unit by rotating the discharge unit within a predetermined angle. The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention, which are not mentioned, can be clearly understood by those skilled in the art through the following description, and will be further clearly understood through examples of the present invention. Further, the objects and advantages of the present invention can be easily achieved by the methods indicated in the claims and combinations thereof. The portable air purifier of the invention is characterized in that the discharge part positioned on the upper side of the cover body part is arranged to be rotatable by the rotary supporting part. Specifically, since the discharge portion is rotatably provided in the spherical joint provided in the rotation support portion, the discharge portion can be rotated about the spherical joint, and the discharge direction of the air can be easily adjusted. In the portable air cleaner according to the present invention, the rotation angle of the discharge portion is limited to a predetermined angle by the rotation guide portion. Specifically, since the guide projection protruding outward of the ball joint is caught in the guide groove formed inside the discharge portion, the rotation of the discharge portion is limited to a predetermined angle, and therefore disconnection or damage of the electric wire connected to the discharge portion can be prevented. The portable air purifier of one embodiment of the invention can comprise a cover body part, a filtering part, a fan module part, a discharge part, a rotary supporting part and a rotary guiding part, wherein the cover body part is provided with an inlet part for sucking air, the filtering part and the fan module part are positioned on the i