公开(公告)号：US10904952B2

公开(公告)日：2021-01-26

申请号：US15900474

申请日：2018-02-20

Applicant: LG ELECTRONICS INC.

Inventor： Changwoo Jeong ,  Youngjun Lee ,  Deok Hyun Hwang

IPC: H05B3/74 ,  H05B3/14 ,  H05B3/00 ,  H05B3/18 ,  H05B3/28 ,  H05B3/68 ,  H05B3/26

Abstract: A surface heater including a substrate, an insulating layer positioned on the substrate, and a heater layer positioned on the insulating layer, wherein the insulating layer and the heating layer are co-fired.

公开(公告)号：US12160937B2

公开(公告)日：2024-12-03

申请号：US16899067

申请日：2020-06-11

Applicant: LG ELECTRONICS INC.

Inventor： Deok Hyun Hwang

IPC: H05B3/16 ,  B22F7/04 ,  C22C19/05 ,  H05B3/26 ,  H05B3/74

Abstract: Discussed is a surface type heating element which generates heat using electricity and a method of manufacturing the surface type heating element. The surface type heating element includes a NiCr alloy and has an adhesive strength of 3 N or more with respect to a substrate or an insulating layer and an electrical resistivity of 10−4 to 10−2 Ωcm, and thus it can be used even at a high operating temperature of 400° C. or more, suppresses the elution of the material itself, and has high fracture toughness, a low coefficient of thermal expansion, and heat resistance, resulting in improvement of the reliability and lifetime of the product.