Lg Electronics Inc.

Korea Institute of Science and Technology

Soongsil University

Youlchon Chemical Co., Ltd.

Bohyun Kim

Kunyoung Lee

Myungjin Ku

Juhyup Yoon

Keunman Park

So Young Lee

Jonghee Han

Hyoung-Juhn Kim

Dongeun Kim

Yong Kim

Jong Hyun Jang

Jongkeon Jeon

Jaehun Kim

Sumin Kim

Sun-Hee Choi

Jong Hyub Park

A blower includes a lower case provided with an inlet; a first tower that extends upward from the lower case and is formed with a first outlet; a second tower that extends upward from the lower case and is provided with a second outlet; a fan that is rotatably disposed on the lower case; a first air flow converter that is disposed at the first tower; and a second air flow converter that is disposed at the second tower, each of the first air flow converter and the second air flow converter including: a guide board that is disposed inside the first tower or the second tower or protrudes through a first wall or a second wall; an upper gear that rotates in engagement with an upper portion of the guide board; a lower gear that rotates in engagement with a lower portion of the guide board; a shaft that is connected to each of the upper gear and the lower gear to rotate together; and a motor that is connected to one of the upper gear and the lower gear to provide a driving force.

Blower having a movable air flow converter

The present disclosure relates to a blower. The blower according to an aspect of the present disclosure includes: a lower case in which a suction port is formed; a fan disposed inside the lower case and blowing air introduced through the suction port upward; a first tower elongated to an upper side from the lower case and formed with a first discharge port opening forward; a second tower spaced apart from the first tower in a horizontal direction, elongated to an upper side from the lower case, and formed with a second discharge port opening forward; an air guide disposed inside the first tower and spaced apart from a front end of the first tower and elongated along a front and rear direction toward the first discharge port; and a handle disposed between the fan and the air guide and elongated from upstream of the air guide toward the front end of the first tower. The handle is disposed between the fan and the air guide, so that the blowing performance of the blower can be enhanced.

Blower having first and second towers and a handle arrangement

Blower having first and second towers and a motor housing supporter arrangement

The present disclosure relates to an air purifier. An air purifier according to an aspect of the present disclosure may include: a first body having an inlet and an outlet; a fan; a second body coupled to the first body, having a central portion located above the first body, and extending from the central portion in a direction crossing the up-and-down direction; a substrate; a light source disposed at the central portion or at a position corresponding to the central portion in the up-and-down direction; and a light guide facing the light source, and extending in a direction away from the central portion, so it is possible to minimize the number of the light sources and deliver light to an outside of the air purifier.

Air purifier

A blower includes: a fan configured to generate a flow of air; a filter positioned upstream of the fan; a case covering a side surface of the filter and having a suction hole; a housing which is positioned opposite to the fan with respect to the filter, and to which the case is detachably coupled; a supporter coupled to one surface of the housing facing the filter and configured to support the filter; a light source disposed at the supporter and configured to provide light in an ultraviolet wavelength band to the fan; and a controller configured to control an operation of the light source, wherein the controller stops the operation of the light source when the case is separated from the housing or when the filter is separated from the supporter.

Blower

A blower includes: a fan; a lower body having an inner space to receive the fan, and a suction hole; a first upper body communicating with the inner space and having a surface with a first discharge hole; a first damper movably coupled to the first upper body and penetrating the surface; the first damper having a first end facing an outside of the first upper body and a second end opposite to the first end; and a first bar extending along and coupled to the second end of the first damper.

Portable air cleaner holder

Disclosed is an electrolyte membrane for a fuel cell including a polymer blend of a sulfonated polyethersulfone copolymer, hydroxyl group-containing polyethersulfone copolymer and a hydroxyl group-containing sulfonated polyethersulfone copolymer.

Electrolyte membrane for fuel cell comprising polymer blend, and membrane-electrode assembly and fuel cell comprising the same

An apparatus for an electrochemical discharge machining process is provided. The apparatus includes a holder housing having, an inlet hole, an outlet hole, a first side, and a second side, and containing an electrolyte, a tool holder disposed at the first side, and a first electrode having a first end and a second end. The holder housing is configured to sealingly accommodate the electrolyte unless at least one of the inlet hole and the outlet hole is open. The first end is coupled to the tool holder and the second end passes through the second side. Since the apparatus is moved to a machining position of the work-piece by a worker, additional power for controlling the position thereof is not necessary. In addition, the apparatus is easy to carry and use because of its simple structure.

Apparatus using electrochemical discharge machining process and method using the same

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Seoul, South Korea

Bohyun Kim