Laminated Bus Bar Design
Products Description
The laminated bus bar design is a high-performance current distribution component constructed by stacking and laminating multiple conductive layers. It is widely used in new energy battery packs, power electronic devices, industrial power distribution systems, and high-density power modules. By optimizing current paths and the laminated structure, laminated flexible busbar significantly reduces electrical resistance, enhances thermal management, and improves overall system reliability. Dimensions, thickness, and the number of layers can be customized to meet different current ratings, voltage levels, and installation requirements.
Copper Material Standards
The laminated copper busbar commonly uses high-purity copper meeting international standards:
| GB Standard | T2Y2 Copper |
| DIN Standard | E-Cu58 (No. 2.0065) |
| EN Standard | CU-ETP (No. CW004A) |
| ISO Standard | Cu-ETP |
| UNS Standard | C11000 |
| JIS Standard | C1100 |
| BS Standard | C101 |
High-purity copper ensures low voltage drop, minimal heat generation, and extended lifespan for the laminated bus bar in high-current applications.
Aluminum Material Standards
For lightweight multilayer busbar, aluminum is preferred. Standards include:
| GB Standard | 1060 Aluminum |
| DIN Standard | EN AW-1050 (No. 3.0267) |
| EN Standard | AI99.5 (EN AW-1050) |
| ISO Standard | AI99.5 |
| UNS Standard | 1100 |
| JIS Standard | A1050 |
| BS Standard | 1050 |
The dc power bus bar made from aluminum offers reduced weight without compromising conductivity or structural strength.
Manufacturing Process
Precision Cutting and Stamping
IGBT busbar ensures uniform layer size and maintains laminated assembly accuracy.
01
Layer Lamination
Mechanical pressing or vacuum hot pressing forms the multi-layer structure of the laminated bus bar design.
02
Welding and Fixation
Laminated copper bar laser welding or spot welding secures layers for electrical continuity and mechanical stability.
03
Surface Cleaning and Finishing
laminated busbar manufacturers degreasing, oxidation prevention, coating, or plating to protect the busbar.
04
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