Lg Electronics Inc.

Seoul National University

Seokho Choi

Jaehyuk Jung

Chiyoung Choi

Yongmin Kim

Hoojin Kim

Hyungho Park

Kidong Kim

Changhoon Lee

Haein Jung

Siyoung Oh

Jaehyeon Kim

Juhyun Kim

Seungdeok Yang

Taejun Kim

Seungho Baek

Kibbum Park

Yongcheol Sa

Jaehyun Kim

Jieun Choi

Hosik Jang

Jeongtaek Park

Jinwook Choi

Hojung Kim

Keonwang Lee

Inbeom Cheon

Taehun Lee

Keuntae Park

Yeongcheol Mun

Song Leem Choi

Sanghyuk Son

Miyoung Lee

Hakjae Kim

Woojoo Choi

Bonchang Hwang

Jeeman Park

Dongsoo Moon

Haecheon Choi

Atul Dhiman

Pyo Sagong

Sunghyun Nam

Shivendra Singh

Wonsuk Park

Changkyum Kim

Hyuneun Kwak

A blower is provided that may include a fan that creates airflow; a lower body forming a lower space therein in which the fan may be disposed, and having at least one suction hole through which air passes; a first upper body positioned above the lower body, and forming a first inner space that communicates with the lower space of the lower body; a second upper body positioned above the lower body, and forming a second inner space that communicates with the lower space of the lower body, the second upper body being spaced apart from the first upper body; and a space formed between the first upper body and the second upper body, and opened in a frontward-rearward direction. The first upper body may include a first slit formed through the first upper body such that air in the first inner space may be discharged into the space, and the second upper body may include a second slit formed through the second upper body such that air in the second inner space may be discharged into the space.

Blower

The present disclosure relates to a centrifugal fan and a method for manufacturing the same. The centrifugal fan can easily implement a three-dimensional blade by including a main plate, a blade, and a shroud that injection-molded as one body, thereby reducing the weight of the centrifugal fan and improving the operating efficiency. In addition, since assembly processes such as fastening or welding are unnecessary when manufacturing the blade, the defect rate of the blade can be reduced and the fluidity performance can be prevented from deteriorating due to traces of welded areas.

Centrifugal fan and method for manufacturing the same

An indoor unit of an air conditioner, the indoor unit including a case having an outlet elongated in one direction; a first vane disposed at the outlet; a second vane disposed at the outlet at a position behind the first vane; a drive motor disposed on one side of the outlet and configured to provide a driving force to at least one of the first vane or the second vane; a drive link coupled to a shaft of the drive motor, and having a first end connected to the first vane and a second end connected to the second vane; and a first vane link having a first end connected to the case and a second end connected to an end portion in a longitudinal direction of the first vane. The first vane has a first curvature formed on a surface perpendicular to an air discharge direction and formed in the longitudinal direction, such that the outlet may be tightly closed in response to sagging of a central part of the first vane due to self-weight in a dual vane structure, and in response to torsion that occurs due to a third vane link provided in the dual vane structure.

Indoor unit of air conditioner

A ceiling-type indoor unit of an air conditioner includes a case in which at least one discharge hole is formed; a first vane disposed at the at least one discharge hole; a vane motor coupled to the case and providing a drive force to the first vane; a drive link that is rotatably coupled to the case and coupled with the vane motor and transmits the drive force of the vane motor to the first vane; a first vane link rotatably coupled to the case and with the first vane; a support bracket coupled to the case and disposed at the at least one discharge hole; and a support link disposed between a first end and a second end in a longitudinal direction of the first vane, and rotatably coupled to the first vane and the support bracket.

Ceiling type indoor unit of air conditioner

A blower including a case; a fan; and a diffuser that is disposed downstream of the fan and guides air, discharged from the fan, toward discharge ports. The diffuser includes an outer wall; an inner wall spaced apart inwardly from the outer wall so that an air passage is formed therebetween; and a plurality of vanes that extends radially between the outer wall and the inner wall and divides the air passage into a plurality of unit passages. The outer wall and the inner wall are formed to have areas with different radial separation distances between the outer wall and the inner wall, such that in an area of the air passage of the diffuser in which air is discharged to a portion having a high flow resistance in the blower, the radial separation distance increases to widen the air passage, thereby compensating for asymmetry of the passage inside of the blower, allowing a uniform volume of air to reach an entire area of the discharge ports, and improving performance of the blower.

A mask apparatus includes a mask body, a seal disposed at a rear surface of the mask body, a fan module disposed at a front surface of the mask body, and a mask body cover that covers the fan module and is coupled to the front surface of the mask body. The mask body includes an air duct configured to guide external air from the fan module to a breathing space inside the seal, and an air exhaust hole configured to discharge air exhaled into the breathing space to an outside of the mask body. An area of a duct outlet of the air duct is greater than an area of a duct inlet of the air duct.

Mask apparatus

A blower is provided. The blower according to the present disclosure includes: a fan causing airflow; a lower body forming an inner space at which the fan is disposed, and having a suction hole through which air passes; and a first upper body positioned above the lower body, and the first upper body may include a first wall forming a first flow path communicating with the inner space of the lower body and a first panel surrounding the first wall, and the first panel may include a first slit formed through the first panel and discharging air flowing through the first flow path to an outside of the first panel.

A mask apparatus includes a mask body, a fan module configured to be disposed at a front surface of the mask body, a mask body cover that is coupled to the mask body and configured to cover the fan module and that includes a filter mounting portion, a seal that is disposed at a rear surface of the mask body and defines a breathing space therein, a filter configured to be disposed at the filter mounting portion, and a filter cover coupled to the filter mounting portion and configured to cover the filter from an outside of the mask body cover. The filter cover includes a front surface portion, and a side surface portion that is disposed rearward relative to the front surface portion and extends along an edge of the front surface portion, the side surface portion defining an air inlet.

A blower of the present disclosure includes: a lower case having a suction port; an upper case which has a pair of towers that are spaced apart from each other and form a space through which a discharge air flows therebetween; and a blower fan which is disposed inside the lower case and discharges air to the upper case, wherein each of the pair of towers has a discharge port that is elongated in an up-down direction and disposed closer to a rear end of the tower than a front end, and has an air guide, which is disposed therein, that guides the air discharged by the blower fan to the discharge port, wherein the air guide is convex upward, has one end disposed near a middle between the front end and the rear end of the tower, and has the other end disposed near a middle of a vertical height of the discharge port, wherein the other end is disposed higher than the one end, so that the direction of air flow discharged from the fan can be smoothly switched to the discharge port side by only a single air guide, thereby minimizing the flow resistance inside the blower and greatly improving the economic efficiency and manufacturability of the blower.

A blower is disclosed. The blower includes a fan configured to generate flow of air, a lower body providing an internal space in which the fan is installed, and having a suction hole through which air passes, an upper body positioned over the lower body and providing an internal space in which air discharged from the fan flows, a damper positioned behind the upper body, and a discharge port formed between an end of the upper body and an end of the damper, in which the upper body includes an opening formed at a rear end of the upper body and communicating with the internal space of the upper body, and the damper opens and closes the discharge port while moving in a front-rear direction behind the opening.

A blower includes a first extension having a first discharge port formed in a first wall, a second extension having a second discharge port formed in a second wall facing and spaced apart from the first wall, a fan provided below the first and second extensions to guide air toward each of the first tower and the second tower, a first gate provided inside the first tower or protruding from the first wall, a second gate provided inside the second tower or protruding from the second wall, a first guide motor to change a position of the first gate, and a second guide motor to change a position of the second gate.

A blower may include a body or case having a suction hole through which air passes, a fan provided inside the body and causing a flow of air, and a filter provided inside the body. The filter may be positioned upstream of the fan and extend in a longitudinal direction of the body. A longitudinal axis of the filter may be shifted or displaced with respect to a longitudinal axis of the body.

The present disclosure relates to an outdoor unit of an air conditioner. The outdoor unit of the air conditioner according to the present disclosure includes: a cabinet including perimeter surfaces disposed vertically in four directions, respectively, and an upper surface disposed on an upper side thereof that is perpendicular to each of the perimeter surfaces, with suction ports and a discharge port, the suction ports being formed in two surfaces that are formed in a first direction and a second direction opposite to each other and one surface that is formed in a third direction perpendicular to the first direction and the second direction, respectively, among the perimeter surfaces, and the discharge port being formed in the upper surface; a heat exchanger disposed inside the cabinet where the suction ports are formed to exchange heat between air introduced into the cabinet and a refrigerant; an air blowing fan disposed inside the cabinet where the discharge port is formed to allow the air that is heat-exchanged by the heat exchanger to flow toward the discharge port; and an orifice disposed along an outer circumference of the air blowing fan, while being spaced apart from the air blowing fan, to form a flow path of the air flowing by the air blowing fan, wherein the orifice includes: a narrowing portion into which the air flowing inside the cabinet is introduced, with the flow path therein having a cross-sectional area that decreases in an air flow direction; a maintaining portion disposed downstream of the narrowing portion, with the flow path therein having a cross-sectional area that is maintained in the air flow direction; and an expanding portion disposed downstream of the maintaining portion, with the flow path therein having a cross-sectional area that increases in the air flow direction, and the maintaining portion has a height that decreases from a fourth direction opposite to the third direction toward the third direction along a circumferential surface of the orifice.

Outdoor unit of air conditioner

A cross-flow fan, and blades of a cross-flow fan are provided. The cross-flow fan includes a rotary shaft; a plurality of blades that extends in a direction parallel to the rotary shaft and having a positive pressure surface and a negative pressure surface; and a connector that connects the rotary shaft and the plurality of blades. At least one protrusion that protrudes in a thickness direction and extends in a longitudinal direction of the plurality of blades is formed on the plurality of blades, and by means of the at least one protrusion formed on a blade surface, a flow separation phenomenon caused by friction with the blade surface is suppressed, thereby reducing noise generated by the cross-flow fan.

Cross-flow fan

The present invention relates to a flow generating device. The flow generating device according to an embodiment of the present invention includes: a suction portion configured to suction air; a fan configured to introduce the air suctioned into the suction portion in an axial direction so as to discharge the suctioned air in a radial direction; a fan housing including a housing plate configured to support the fan, a guide wall protruding from one surface of the housing plate to surround at least a portion of an outer circumference of the fan, and a discharge portion disposed outside the guide wall; a cover configured to surround the fan and the fan housing; and at least one heater disposed between the outer circumference of the fan and the cover.

Growing community of inventors

Seoul, South Korea

Seokho Choi