Abstract: A magnetic body for an inductor has an excellent direct-current bias property in a high-current region. The magnetic body for the inductor is a magnetic body used in an inductor for high current. The magnetic body has a core particle including a Fe—Al-based alloy containing 10 wt % or more of Al and a balance of Fe and other inevitable impurities, and has an insulating layer including Al2O3 formed on the surface of the core particle. A method of manufacturing such a magnetic material for the inductor is also disclosed.
Type:
Application
Filed:
August 31, 2021
Publication date:
June 16, 2022
Applicants:
HYUNDAI MOTOR COMPANY, KIA CORPORATION, CHANG SUNG CO.
Inventors:
Young Min Kim, Tae Kyung Lee, Nam Kyu Choi
Abstract: An optimal condition is disclosed in which a composition of a soft magnetic molding solution includes 94 to 98 wt % of a soft magnetic powder and 2 to 6 wt % of an organic vehicle, in order to manufacture a coil-embedded inductor having various advantages such as high inductance, a low core loss, and high reliability. An exemplary manufacturing method is provided of a coil-embedded inductor having a structure in which a part of a coil is embedded in a magnetic core, which includes preparing an organic vehicle, preparing a soft magnetic molding solution having the density of 5.5 to 6.5 g/cc by mix-milling a soft magnetic powder with the organic vehicle, positioning and fixing a part of the coil in the case, and forming the magnetic core by injecting and curing the soft magnetic molding solution into the case.
Type:
Grant
Filed:
March 7, 2017
Date of Patent:
November 19, 2019
Assignee:
CHANG SUNG CO., LTD.
Inventors:
Tae Kyung Lee, Seung Nam Yang, Sung Jin Choi
Abstract: An optimal condition is disclosed in which a composition of a soft magnetic molding solution includes 94 to 98 wt % of a soft magnetic powder and 2 to 6 wt % of an organic vehicle, in order to manufacture a coil-embedded inductor having various advantages such as high inductance, a low core loss, and high reliability. An exemplary manufacturing method is provided of a coil-embedded inductor having a structure in which a part of a coil is embedded in a magnetic core, which includes preparing an organic vehicle, preparing a soft magnetic molding solution having the density of 5.5 to 6.5 g/cc by mix-milling a soft magnetic powder with the organic vehicle, positioning and fixing a part of the coil in the case, and forming the magnetic core by injecting and curing the soft magnetic molding solution into the case.
Type:
Application
Filed:
March 7, 2017
Publication date:
July 12, 2018
Applicant:
CHANG SUNG CO., LTD.
Inventors:
Tae Kyung LEE, Seung Nam YANG, Sung Jin CHOI
Abstract: There is provided a production method for a laminated coil, the production method including: a process of producing a coil part of one axis by stacking a flat coil in an axial direction, a process of bending the flat coil of a connection portion in an extended state thereof in a length direction to allow for the division of a first coil part and a second coil part, wherein the connection portion connecting two coil parts is produced by bending the flat coil of the connection portion, and a process of finally spreading the bent connection portion, such that the first coil part and the second coil part may be disposed to be parallel in the same direction on the same plane.
Abstract: There is provided a production method for a laminated coil, the production method including: a process of producing a coil part of one axis by stacking a flat coil in an axial direction, a process of bending the flat coil of a connection portion in an extended state thereof in a length direction to allow for the division of a first coil part and a second coil part, wherein the connection portion connecting two coil parts is produced by bending the flat coil of the connection portion, and a process of finally spreading the bent connection portion, such that the first coil part and the second coil part may be disposed to be parallel in the same direction on the same plane.
Abstract: The present invention relates to an elliptical unit block for preparing a core using soft magnetic metal powder and a core with excellent high current DC bias characteristics using the same, and more specifically, to an elliptical unit block for preparing a core using soft magnetic metal powder used in an inductor for an automotive electronic sub-assembly using a high current buck or boost inductor or a three phase line reactor or fuel cell system for power factor correction (PFC), and a powered magnetic core prepared using the same.
Type:
Application
Filed:
September 5, 2012
Publication date:
August 7, 2014
Applicant:
CHANG SUNG CO.
Inventors:
Jae-Yeol Park, Dal-Joong Kim, Bong-Gi Yoo, Gu-Hyun Kim, Kwang-Yong Yoo
Abstract: The present invention relates to a plane heating element which is supplied with power to generate heat. The plane heating element may include a support layer made of ceramic glass, a heat-generating layer which is formed by printing heat-generating paste on the upper surface of the support layer, and an insulating layer which is formed by applying insulating paste on the upper surface of the heat-generating layer. The heat generating paste may be dried and plasticized, and receives predetermined power to generate heat. The insulating paste may be dried and plasticized and may be configured to insulate the and prevent oxidation of the heat-generating layer. The present invention provides a strong adhesion with respect to a glass substrate and makes it possible to increase temperature up to a target level in a short time, and thus can be used as an effective printing method in various electric and electronic product fields.
Type:
Application
Filed:
September 8, 2011
Publication date:
July 11, 2013
Applicant:
CHANG SUNG CO.
Inventors:
Won-Bae Lee, Ki-Bum Park, Seong-Yong Park, Jung-Woong Lee, Sang-Gil Do, In-Bum Jeong