New energy battery pack thermal management waterway system

By constructing a mesh branch and a dynamic pressure compensation mechanism in the battery pack thermal management system, the problem of uneven cooling in a single water pump system was solved, achieving uniform temperature inside the battery pack and system stability, thus extending the battery's service life.

CN224417824UActive Publication Date: 2026-06-26JIANGSU OPTIMUMNANO ENERGY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU OPTIMUMNANO ENERGY CO LTD
Filing Date
2025-06-30
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In existing technologies, single-pump systems have difficulty dynamically adjusting the cooling flow rate in different areas of the battery pack, resulting in insufficient cooling in high-temperature areas and excessive cooling in low-temperature areas, creating a significant temperature gradient, which accelerates battery aging, especially under high-power charging and discharging conditions.

Method used

A network of branches is constructed using multi-port connectors, combined with relay water pumps, to achieve directional circulation and flow zone control of the cooling medium. Metal and rubber pipes are used to match the heat dissipation requirements of different areas, and gas pipes are used to form dynamic pressure compensation. Combined with closed-loop control of temperature sensors, intelligent thermal management is achieved.

Benefits of technology

It effectively eliminates temperature gradients inside the battery pack, improves cooling uniformity, reduces energy consumption, prevents system blockage and failure risks, and extends battery life.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224417824U_ABST
    Figure CN224417824U_ABST
Patent Text Reader

Abstract

The utility model relates to a new energy battery package heat management water route system, include: water tank, water tank is provided with main water pump, cooling pipeline is connected main water pump and surrounds the arrangement in new energy battery package outside, cooling pipeline series connection new energy battery package's high temperature area and low temperature area, to realize the directional circulation of cooling medium, multi -way joint, the multi -way joint is provided with a plurality of, a plurality of multi -way joint distribution new energy battery package's temperature difference abnormal area, temperature difference abnormal area is new energy battery package's corner area, and cooling pipeline forms the network branch through a plurality of multi -way joints, relay water pump, relay water pump is close to the network branch entrance of temperature difference abnormal area setting, is used for providing relay pressure for cooling medium, the utility model discloses through the local pressure boost of relay water pump, realizes the zoned control of cooling medium flow, through the series connection high temperature area and low temperature area of cooling pipeline, promotes high and low area coolant interactive circulation, effectively eliminates the heat accumulation to eliminate the temperature gradient in battery package interior.
Need to check novelty before this filing date? Find Prior Art