DPC

R & D

  • Technical Innovation
  • Patent
  • History in R&D and patent

    • 2020

    • Development of aluminum fine line and connection method between terminals applied to HVT.
    • - Connecting aluminum coils to terminals using ultrasonic wave

    2017

    • Development of Reactor for high current (30A~) using aluminum wire.
    • - Developed Reactor for high current by making aluminum wire PR type.

    2016

    • Coil for transformer(变压器用线圈)(CN 105977016)
    • - In the case of high current reactor, the power output and efficiency of the core are increased without loss of raw material or change of the overall area

    2014

    • N-CORE for Transformer
    • Improving overall efficiency of the transformer and reducing weighty by increasing cross section of core.

    2012

    • Ultrasonic soldered aluminum coil and method of its manufacture (No. 10-0906188)
    • Increase the drip rate of the COIL so that the heat generated from the COIL can be released quickly by rolling the round-coil to reduce the product size
    • High heat dissipation reactor(高散热性电抗器)(CN 202771929)
    • Minimizing size of reactor by maximizing the heat dissipation from the coil using the PR coil.

    2009

    • Ultrasonic soldered aluminum coil and method of its manufacture (No. 10-0906188)

    2006

    • HVT insulation system : UL CLASS 240(S), DPC-240 (E108713)
    • Core for transformer and method of its manufacture(제 200310100295.1)
    • - Enhancing productiviy and reducing the cost by changing E.I CORE from welding type to LOCKING TYPE.
    • Structure and method of terminal connection of high voltaage transformers(제 10-0564014호)
    • Connedtion structure and method of its manufacutre to prevent rust during connecting AL COIL into terminal.

    2001

    • HVT Insulation system : UL CLASS 220(R),DPC-R

    1993

    • HVT Insulation system : UL CLASS 200(N), DPC-N (E108713)

    1987

    • HVT Insulation system : UL CLASS 180(H), DPC-H001 (E 108713)

    Patent certificates

      1.Core for transformer and method of its manufacture 2.Core for transformer and method of its manufacture
      3.Terminal for transforer 4.Core for transformer
      5.Coil for transformer 6.Crimp terminal

  • R&D Innovation

    • 1. Application of AL COIL

    • Started AL-COIL for the first time in the market in 2003
    • Enhanced brand value with successful development focused on differentatino from competitors and R&D innovation
    • Temperature raise, reliability, Physical characteristics test result of AL COIL is OK compared with CU-COIL
    • Established TENSION management standards for each COIL diameter
    • Started application of AL COIL since 2004

    2. Application of PR COIL

    • Started manufacture of PR COIL applied products(HVT, RET) for the first time in the market from 2011.
    • Enhanced brand value with successful development focused on differentatino from competitors and R&D innovation
    • Raised drip rate and dropped coil temperature
    • Reduced product size (enhanced price competitiveness)
    • Established completion outer diameter standards for each COIL diameter
    • 51% partition of whole production of DPC in 2021