Battery Cooling Plate Joint Layout for Leak Resistance Under Vibration
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Solution Overview
Problem
Conventional liquid cooling systems for battery packs face issues with sealing failures at water inlet and outlet joints, leading to reduced cooling efficiency and safety risks due to external collisions and vibrations.
Innovation Solution
The liquid cooling system features water inlet and outlet ports arranged outside the battery casing body, with a support plate fixedly connected to the casing body to securely attach the water inlet and outlet joints, ensuring a sealed and reliable connection through through holes and connection panels, preventing liquid leakage and maintaining cooling efficiency during vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the water inlet port and water outlet port are arranged inside the casing body, then the connection is protected from external collisions, but the sealing reliability deteriorates due to collision and vibration causing leakage
Solution Approach 1:
The water inlet port and water outlet port are extracted from the interior of the casing body and relocated to the exterior surface. This allows the ports to be protected from external collisions while maintaining reliable sealing through the integrated support plate structure that provides stable mounting away from vibration-prone internal components.
Solution Approach 2:
The support plate serves as an intermediary structure that mediates between the casing body and the water inlet/outlet joints. It provides a stable mounting platform with through holes for securing the joints, isolating them from the harmful effects of collision and vibration while ensuring reliable sealing connection.
2Reliability
If the water inlet port and water outlet port are arranged outside the casing body, then the sealing reliability improves, but the ports become vulnerable to external collisions
Solution Approach 1:
The support plate merges multiple functions: it provides structural support for mounting the water inlet and outlet ports, offers protection from external collisions through its rigid construction, and ensures reliable sealing through integrated through holes and connection structures. This combination resolves the vulnerability issue while maintaining sealing reliability.
3Reliability
If a support plate with through holes is used to fix the water inlet and outlet joint, then the connection reliability improves, but the device complexity increases
Solution Approach 1:
The support plate is designed as a universal component that performs multiple functions simultaneously: it provides structural support, enables secure mounting through through holes, ensures sealing, and protects from external forces. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in device complexity while improving connection reliability.
Data Source
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AI summary
A liquid cooling system includes: a liquid cooling plate (11), a support plate (12) and a water inlet and outlet joint (13). The support plate (12) includes a first through hole (121) and a second through hole (122), and is used for fixedly connecting with the outer wall of the casing body of the battery pack (001). The water inlet and outlet joint (13) is arranged on the support plate (12). One end of the water inlet joint (131) used for connecting with the water inlet port of the liquid cooling plate (11) passes through the first through hole (121) and is connected with the water inlet port. One end of the water outlet joint (132) used for connecting with the water outlet port of the liquid cooling plate (11) passes through the second through hole (122) and is connected with the water outlet port.