Battery Pack Terminal Guide and Cushion Isolation
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Solution Overview
Problem
Secondary batteries are prone to short-circuits during manufacture and delivery, leading to potential damage and safety hazards due to unintentional contact between positive and negative electrode terminals.
Innovation Solution
A battery pack design featuring terminal guide units with non-conductive cushion parts and conductive plates that orient electrode terminals in opposite directions, with protrusion parts and heat-resistant materials to prevent accidental contact and enhance safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If electrode terminals are exposed for easy connection, then ease of operation is improved, but risk of short-circuit increases
Solution Approach 1:
The case is divided into a first case and a second case that are coupled together, creating separate compartments for the first electrode terminal and second electrode terminal. This segmentation physically isolates the terminals from each other while maintaining external accessibility, thus preventing short-circuits without compromising connection ease.
Solution Approach 2:
Non-conductive cushion parts are introduced as intermediary elements between the electrode terminals and the case interior. These cushion parts provide electrical insulation and physical protection, preventing direct contact between terminals while allowing the terminals to extend outward for easy connection.
2Reliability
If non-conductive cushion parts are added for safety, then short-circuit prevention is improved, but device complexity increases
Solution Approach 1:
The cushion parts are integrated into the case structure, merging the protective function with the existing case components. The first cushion part is disposed between the first electrode terminal and the first case, and the second cushion part is disposed between the second electrode terminal and the second case, creating a unified safety system without adding excessive complexity.
3Temperature
If conductive plates are added for heat dissipation, then temperature control is improved, but device complexity increases
Solution Approach 1:
The conductive plates serve multiple functions: they provide thermal management by dissipating heat from the electrode terminals, and they also serve as structural support elements within the case. The first conductive plate is coupled to the first electrode terminal and the first case, while the second conductive plate is coupled to the second electrode terminal and the second case, creating multi-functional components that reduce overall system 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
Effectively prevents short-circuits during manufacturing and delivery, reducing the risk of damage and injury by ensuring electrode terminals are securely positioned and isolated, while allowing for efficient heat dissipation and electrical conductivity.
Implementation Method 1
a first cushion part disposed between the first electrode terminal and the first case, the first cushion part isolates the first electrode terminal from the first case
Implementation Method 2
The first conductive plate may be composed of copper. The first conductive plate may be screw-engaged to the first terminal guide unit.
Implementation Method 3
The first terminal guide unit may include a protrusion part extending from an end of the first terminal guide unit and that protrudes along an exposed direction of a side of the first electrode terminal
Data Source
AI summary
A battery pack that includes a battery cell having a positive and negative electrode terminal extending from a side of the battery cell. The positive and negative electrode terminal each have a non-exposed surface and an exposed surface. The battery pack also includes a case that includes a first case and a second case. The first case includes a first terminal guide unit to accommodate the positive electrode terminal with the non-exposed surface of the positive electrode terminal facing the first terminal guide. The second case includes a second terminal guide unit that accommodates the negative electrode terminal. The non-exposed surface of the negative electrode terminal faces the second terminal guide. The first case and the second case are coupled together with the battery cell positioned between the first case and the second case.