Other

Samsung Sdi Co., Inc.

Ls Industrial Systems Co., Ltd.

Su Dong Lee

Joo Han Song

Jake Kim

Jeongsoon Shin

Kyeong-Beom Cheong

Jongman Kim

Cheol Ho Park

Wonseok Kim

Seung Bum Suh

Hoyul Baek

Heekwan Chai

Younghwa Ko

Jang-Woo Lee

Inho Jung

Kwangki Baeg

Seok Chae Chang

Seung Ho Yang

Yongsic Kim

Bounggun Joung

Wonseock Kim

Boung Gun Joung

Embodiments of the present invention provide an accelerated lifetime estimation device for predicting the lifetime of a secondary battery, and a method thereof. The accelerated lifetime estimation device can accurately estimate a normal lifetime of the secondary battery while reducing an evaluation time period of the secondary battery.

Device for estimating a lifetime of a secondary battery and method thereof

A water-cooling type cooler and an inverter employing the same are disclosed. A guide pin for distributing cooling water is formed in the middle of a cooling water flow path having a bent face, to make a flow rate of cooling water at the bent portion of the cooling water flow path uniform to thus improve cooling performance of the water-cooling type cooler. In addition, because the cooling performance of the water-cooling type cooler is improved without extending the cooling pin, an increase in the weight of the water-cooling type cooler can be reduced and a fabrication cost of the water-cooling type cooler can be reduced.

Water-cooling type cooler and inverter having the same

Provided is an arm support of a bicycle which is configured to reduce an intensive pressure acting from a seat due to the rider's weight inclined at the seat by spreading the inclined weight to other parts. The rider can get on or off the bicycle more easily by putting his/her arms on the arm support. In the bicycle including a frame, a seat disposed at the frame, a handle for controlling the direction of the bicycle, and wheels rotatably coupled to the frame, the arm support includes: a support shaft including a coupling part fixed to the frame: a support bar disposed at an upper side of the support shaft and connected to both sides of the support shaft; and armrests coupled to the support bar so that a rider puts his/her arms thereon The armrests extend horizontally from the vertical support bars and bent toward the seat or upward to form armrest channels.

Arm supporter of bicycle

Growing community of inventors

Gyeonggi-do, South Korea

Su Dong Lee