Lg Electronics Inc.

Yonsei University

Kwangwoon Ahn

Donghan Kim

Hyunjoo Oh

Kiwon Noh

Kichul Choi

Joonsung Park

Sunghyun Ki

Kyeongbae Park

Junghae Kim

Donghan Kang

Seongho Ha

Kyungseok Min

Jounyoung Kim

Hyunsoo Kim

Sungyong Ahn

Eonpyo Hong

Jongwoo Lee

Sanghyun Lim

Goondong Park

Yeonwoo Cho

Youngcheol Han

Kyoungkyu Lee

Simoon Jeon

Yoonchul Rhim

Gyeyoung Song

A hair dryer is provided that may include a main body including a discharge unit configured to discharge fluid, such as air outside of the main body, and a handle provided at one side of the main body. The discharge unit may include a discharge base inserted into the main body and configured to form a plurality of discharge paths which are separated from each other and through which fluid may flow. The discharge unit may be configured to selectively discharge fluid through one discharge path of the plurality of the discharge paths.

Hair dryer

A concentrator and a hair dryer including a concentrator are provided. The concentrator may include an outer case forming an exterior of the concentrator and provided with first and second flow paths thereinside to enable gas discharged from a gas discharge of the hair dryer to flow and a flow path selector a position of which is variable within the outer case, the first flow path being provided between the flow path selector and the outer case, the second flow path being provided within the flow path selector. The concentrator may be configured to externally discharge the gas discharged from the gas discharge along either the first flow path or the second flow path depending on the position of the flow path selector. Accordingly, a user may select the first flow path or the second flow path for convenience while using a single concentrator.

Concentrator and hair dryer including concentrator

A hair dryer is provided that may include a main body including a discharge unit configured to discharge fluid outside of the main body, and a handle provided at one side of the main body. The discharge unit may include a plurality of discharge areas configured to discharge fluid. The discharge unit may be configured to selectively discharge fluid through one of the plurality of the discharge areas.

A hair dryer is provided that may include a main body, a handle, a flow path, and a fan. The handle may include a handle case and a handle frame. The handle frame may include a flow stabilizer located upstream of the fan. A fluid flowing in through an inlet may pass through the flow stabilizer to flow to the fan. A sound absorbing space to reduce noise may be formed between an inner circumferential surface of the handle case and the flow stabilizer.

A concentrator and hair dryer including a concentrator are provided. The concentrator may include a head having at least one flow path provided therein to enable gas discharged from a gas discharge of the hair dryer to flow therethrough, and a body that extends backward from the head and coupled to a main body of the hair dryer. Accordingly, the concentrator may be securely coupled to the hair dryer to prevent separation and shaking upon use.

A hair dryer is provided that may include a main body, a handle, a flow path, and a fan. The handle may include a handle case having an inner space for forming the flow path and configured to form an exterior of the handle, and a handle frame that extends from the main body in a downward direction so as to be disposed in the inner space of the handle case. The fan may be coupled to the handle frame and spaced apart from an inner circumferential surface of the handle case.

Provided is a linear compressor including a linear motor having a mover reciprocating with respect to a stator; a piston coupled to the mover to reciprocate; a cylinder into which the piston is slidingly inserted, the cylinder having an inner circumferential surface forming a bearing surface together with an external circumferential surface of the piston, the cylinder forming a compression space together with the piston, and the cylinder having at least one first hole formed through the inner circumferential surface of the cylinder and an outer circumferential surface of the cylinder to guide refrigerant discharged from the compression space to the bearing surface; and a porous member inserted into the outer circumferential surface of the cylinder and configured to cover the first hole, the porous member having multiple micropores smaller than the first hole.

Linear compressor

A linear compressor includes a linear motor including a mover that reciprocates with respect to a stator; a compression unit configured to define a compression space in a cylinder while a piston connected to the mover reciprocates in the cylinder; a frame disposed outside of the cylinder; a plurality of discharge covers that define discharge spaces sequentially receiving refrigerant discharged from the compression space; and a gas bearing configured to guide part of refrigerant accommodated in a discharge any one of the plurality of discharge covers to lubricate between the cylinder and the piston with the refrigerant. The discharge cover structure is configured to restrict heat transfer between the discharge covers and the frame.

Linear compressor with heat shield between discharge cover and frame

A linear compressor includes a cylinder that defines a compression chamber configured to accommodate refrigerant and that includes a cylinder nozzle configured to receive refrigerant, and a piston provided in the cylinder and configured to be pressed by refrigerant in the cylinder. The piston includes a piston body configured to move forward and backward within the cylinder, a piston front part located on a front surface of the piston body, the piston front part comprising a suction port through which refrigerant is supplied into the compression chamber, and a refrigerant collection part that is recessed from an outer circumferential surface of the piston front part, that extends to a front surface of the piston front part, and that is configured to receive at least a portion of refrigerant compressed in the compression chamber.

A linear compressor includes a shell that includes a refrigerant suction part configured to suction refrigerant, a cylinder located in the shell, a piston configured to reciprocate within the cylinder in which the piston includes a piston body and a piston flange, and a suction muffler through which suctioned refrigerant passes in which the suction muffler includes a first muffler disposed in the piston body. The first muffler includes a first muffler body that defines a refrigerant passage and that extends in an axial direction, and a first muffler flange that extends from the first muffler body in a radial direction, that is configured to couple to the piston flange, and that defines a flange communication hole.

Linear compressor having suction muffler

A reciprocating compressor is provided. The reciprocating compressor may include a cylinder having a compression space, a piston inserted into the cylinder to define the compression space while being reciprocated, the piston having a suction passage to communicate with the compression space, a gas bearing having at least one bearing hole that passes through the cylinder, so that a refrigerant gas may be injected between the cylinder and the piston to support the piston with respect to the cylinder, and a flow resister disposed at an outer circumferential surface of the cylinder or at one side of the cylinder to restrict a flow of the refrigerant gas flowing through or toward the at least one bearing hole.

Reciprocating compressor having a gas bearing

A linear compressor is provided. The linear compressor may include a cylinder including a cylinder body that defines a compression space for a refrigerant and a cylinder flange that extends from the cylinder body in a radial direction; a piston that reciprocates within the cylinder in an axial direction; and a frame coupled to the cylinder. The frame may include a frame body into which the cylinder body may be inserted and a first press-fitting portion press-fitted into the cylinder flange.

A linear compressor is provided that may include a shell including a suction inlet, a cylinder provided in the shell to define a compression space for a refrigerant, a piston reciprocated in an axial direction within the cylinder, a discharge valve provided at a first side of the cylinder to selectively discharge the refrigerant compressed in the compression space, at least one nozzle, through which at least a portion of the refrigerant discharged through the discharge valve flows, the at least one nozzle being disposed in the cylinder, and at least one expansion portion that extends from the at least one nozzle to an inner circumferential surface of the cylinder, the at least one expansion portion having a flow cross-section area greater than a flow cross-section area of the at least one nozzle.

A linear compressor is provided. The linear compressor may include a cylinder; a frame coupled to an outer side of the cylinder; a cylinder groove defined on an outer circumferential surface of the cylinder; and a sealing member provided in the cylinder groove. The sealing member may be provided between the outer circumferential surface of the cylinder and an inner circumferential surface of the frame.

Growing community of inventors

Seoul, South Korea

Kwangwoon Ahn