Resistor case and battery control unit including same

The resistor case with a structured resistor member, housing, and cover member facilitates easy resistor change and stable coupling, addressing productivity issues in BDUs by supporting various resistor sizes.

WO2025244310A1PCT designated stage Publication Date: 2025-11-27LS E-MOBILITY SOLUTIONS CO LTD
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Patent Information

Application Number
PCT/KR2025/005720
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-05-20
Filing Date
2025-04-28
Publication Date
2025-11-27

AI Technical Summary

Technical Problem

Existing battery disconnect units (BDUs) require separate manufacturing for each installation environment due to fixed resistors, leading to reduced productivity and lack of easy resistance change methods.

Method used

A resistor case with a structure that allows easy change, stable electrical coupling, and compatibility with resistors of various sizes, featuring a resistor member, housing, and cover member with specific step portions and conductive members for electrical connection.

Benefits of technology

Enables easy installation and disconnection of resistors, maintains stable electrical coupling, and supports various resistor sizes, enhancing productivity and reliability in battery control units.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure KR2025005720_27112025_PF_FP_ABST
    Figure KR2025005720_27112025_PF_FP_ABST
Patent Text Reader

Abstract

A resistor case and a battery control unit including same are disclosed. According to an aspect of the present invention, the resistance case may comprise: a resistance member electrically connected to the outside; a resistor housing for accommodating the resistor member; and a resistor cover member covering the resistor member and coupled to the resistor housing, wherein the resistor member includes a resistor body having a length in one direction and a width in the other direction, the resistor housing includes: a housing space formed therein and accommodating the resistor member; a housing bottom surface surrounding the housing space from the lower side thereof; and a stepped portion continuous with the housing bottom surface and formed higher than the housing bottom surface along the longitudinal direction of the resistor member, and the lower side of the resistor body is supported by one of the housing bottom surface and the stepped portion.
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Citation Information

Patent Citations

  • Self-adaptive buckle structure for pre-charging resistor of battery pack circuit breaking unit

    CN209860095U

  • Pre-charging resistor fixing box

    CN211125207U

  • Mounting bracket and resistor unit

    JP7254486B2

  • Prefabricated Case for Battery Distribution Unit

    KR1020160122515A

  • Integrated pre-charge relay for battery disconnect unit of electric vehicle

    KR2020170000325U