Concave-Convex Connector Terminals for Battery Pack Heat Dissipation
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Solution Overview
Problem
High-capacity battery packs experience excessive heat due to electrical resistance, risking damage to the printed circuit board and potential burns when handled, as existing connectors lack effective heat dissipation.
Innovation Solution
A connector with a concave-convex structure on its connection terminals, featuring grooves and protrusions on both inner and outer surfaces, enhances heat dissipation by increasing the contact area and improving connection reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a connector is used for high current transmission in battery packs, then power transmission capability is improved, but heat generation due to electrical resistance increases causing damage to printed circuit boards and potential burns
Solution Approach 1:
The patent applies the dimensionality change principle by adding a convex structure (protrusion) to the connection terminal that extends in the thickness direction of the printed circuit board. This protrusion creates additional contact points and increases the contact area between the connector and the printed circuit board, thereby expanding the heat dissipation surface area in the thickness dimension. This resolves the technical contradiction by maintaining high current transmission capability while reducing connector temperature through enhanced heat dissipation in the vertical dimension.
Solution Approach 2:
The patent applies segmentation by dividing the heat dissipation function into multiple distinct structures: the convex structure (protrusion) that extends toward the opposite surface, the grooves formed on the connection terminal, and the increased contact area with the printed circuit board. These segmented structures work together to distribute and dissipate heat more effectively across multiple surfaces and contact points, resolving the contradiction between high power transmission and temperature control.
2Temperature
If heat dissipation surface area is increased to reduce connector temperature, then temperature control is improved, but connector structure becomes more complex
Solution Approach 1:
The patent applies the merging principle by integrating the heat dissipation function directly into the existing connection terminal structure. The convex structure (protrusion) and grooves are formed as part of the connection terminal itself rather than as separate components. This merging of heat dissipation features with the basic connector structure achieves enhanced temperature control while minimizing additional structural complexity.
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
The enhanced heat dissipation effectively reduces internal temperatures within the battery pack, preventing connector damage and improving user safety by efficiently managing heat generated during high-current transactions.
Implementation Method 1
a connection portion comprising two or more connection terminals configured to contact a counterpart connection terminal and comprising a concave-convex structure formed on an outer surface of the connection terminal
Implementation Method 2
The enhanced heat dissipation effectively reduces internal temperatures within the battery pack, preventing connector damage
Data Source
AI summary
A connector with increased heat dissipation efficiency and ease of use is provided. The connector includes a mounting portion having a main body and configured to be electrically connected to a printed circuit board of a battery management unit configured to manage voltages of a plurality of battery cells; and the connection portion including two or more connection terminals configured to contact a counterpart connection terminal and the connection portion including a concave-convex structure formed on a surface of each of the two or more connection terminals.