Split type brazing elbow joint and processing method thereof
By using a composite sealing structure and flow channel design for a split-type brazed pipe joint, the problems of low assembly efficiency, poor sealing, and uneven fluid flow of traditional pipe joints in new energy vehicle battery packs are solved, achieving high-efficiency sealing and fluid flow, supporting modular production and simplified installation and maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 马鞍山纳百川热交换器有限公司
- Filing Date
- 2026-05-26
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional integrated bend joints in new energy vehicle battery packs suffer from low assembly efficiency, poor consistency, insufficient sealing and pressure resistance, and uneven fluid flow, which affect the reliability and thermal management efficiency of the battery system.
The design adopts a split brazed pipe joint, including the pipe joint body and the pipe connector. A composite sealing structure is formed by the limiting plate and the convex ring. The bending part is designed as a large curvature gentle bend and a flow channel without diameter reduction. A continuous L-shaped combined weld is formed by filling the capillary action with molten solder. A flexible neck and a corrugated pipe section are combined to isolate vibration and improve fluid flow.
It improves sealing reliability, reduces fluid pressure drop loss, supports modular production, simplifies installation and maintenance processes, reduces unit manufacturing costs, effectively isolates vibration energy, and improves fluid flow and thermal management efficiency.
Smart Images

Figure CN122407896A_ABST