Battery Pack Cooling Plate Assembly With Shared Refrigerant Inlet
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Solution Overview
Problem
Secondary battery cells in a battery pack are prone to overcharging and exposure to high-temperature environments, leading to risks of ignition or explosion due to inefficient cooling and space utilization.
Innovation Solution
A battery pack design incorporating integrated cooling plates with inlet and outlet pipes, a main supply and outlet pipe, and a flexible pipe structure, which allows for efficient refrigerant circulation and assembly without additional fastening components, enhancing cooling efficiency and space utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If multiple separate cooling plates with individual inlet pipes are used for each battery cell, then cooling coverage is improved, but device complexity and assembly difficulty increase
Solution Approach 1:
The patent combines multiple inlet pipes into a single common inlet pipe that serves multiple cooling plates. This merging approach reduces the number of separate components and connection points, thereby simplifying the overall structure and assembly process while still enabling cooling of multiple battery cells through the shared inlet pipe distribution system
2Temperature
If multiple separate cooling plates with individual inlet pipes are used for each battery cell, then cooling coverage is improved, but the number of components and weight increase
Solution Approach 1:
The patent merges multiple inlet pipes into one common inlet pipe structure, reducing the total material usage and component count. This consolidation directly reduces the weight of the cooling system while maintaining the capability to cool multiple battery cells through the shared piping infrastructure
3Stability of the object's composition
If additional fastening components are used to secure cooling plates, then structural stability is improved, but assembly efficiency decreases
Solution Approach 1:
The patent integrates the inlet pipe structure to serve both as a functional component for refrigerant supply and as a structural element that provides inherent positioning and stabilization for the cooling plates. This merging of functions eliminates the need for separate fastening components, thereby maintaining structural stability while significantly improving assembly efficiency
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Improves cooling efficiency, reduces assembly complexity and weight, and increases the number of battery cells per volume by optimizing refrigerant flow and reducing unnecessary components.
Implementation Method 1
a first cooling plate (110) including a first cooling path (111), along which a refrigerant is circulated... a second cooling plate (120) including a second cooling path (121), along which a refrigerant is circulated
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
A battery pack includes: a first cooling plate including a first cooling path, along which a refrigerant is circulated, and a first inlet pipe connected to the first cooling path; a second cooling plate including a second cooling path, along which a refrigerant is circulated, and a second inlet pipe connected to the second cooling path and sealingly coupled to the first inlet pipe; a main supply pipe branching from the first inlet pipe or the second inlet pipe and supplying a refrigerant to the first inlet pipe and the second inlet pipe; and a pack unit body including at least one battery cell and disposed between the first cooling plate and the second cooling plate.