Battery Pack Fastening Interface for Resettable PCB Connections
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Solution Overview
Problem
Existing battery pack systems face challenges in efficiently and reliably managing electrical connections between battery modules and circuit boards, particularly in facilitating easy disconnection and reconnection for power reset operations without causing mechanical stress or damage.
Innovation Solution
A fastening device with a substrate, flexible connection circuit boards, and elastic hooks that allow for secure electrical contact and disconnection between battery modules and circuit boards, utilizing a hook mechanism without soldering or welding, enabling easy manipulation for power reset and reducing mechanical stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If existing battery pack systems use traditional connection methods for battery modules and circuit boards, then electrical connection is achieved, but disconnection and reconnection for power reset operations is difficult and causes mechanical stress or damage
Solution Approach 1:
The connection system is segmented into separate components: a substrate with fastening holes, connection circuit boards with contact pads, and fastening hooks with elastic hooks. This segmentation allows independent movement and disconnection of parts, enabling easy power reset operations without causing mechanical stress to the entire assembly.
Solution Approach 2:
The fastening hooks incorporate elastic hooks that can dynamically adjust their position and engagement state. The elastic hooks can be pressed to disengage from fastening holes and spring back to re-engage, providing dynamic control over the connection state without mechanical stress or damage.
2Strength
If soldering or welding is used to connect battery modules and circuit boards, then strong electrical connection is achieved, but disconnection requires complex processes and causes damage
Solution Approach 1:
The patent replaces traditional mechanical joining methods (soldering or welding) with a hook-based fastening system. The fastening hooks engage with fastening holes to provide mechanical retention, while electrical connection is established through contact pads on the connection circuit boards. This substitution allows easy disconnection and reconnection without damage.
Solution Approach 2:
The invention merges mechanical fastening (fastening hooks in holes) and electrical connection (contact pads) into a single integrated system. The connection circuit boards are positioned to contact conductive pads on the circuit board when the substrate is fastened, providing both mechanical retention and electrical connection through the same fastening action.
3Stability of the object's composition
If rigid connection structures are used between battery module and circuit board, then structural stability is achieved, but flexibility for power reset operations is reduced
Solution Approach 1:
The connection circuit boards are designed as flexible printed circuit boards that can bend and move. This flexibility allows the connection circuit boards to maintain contact with conductive pads during power reset operations while the substrate provides overall structural stability through its fastening holes and hook engagement.
Solution Approach 2:
The substrate acts as an intermediary component between the battery module and circuit board. It provides structural stability through fastening holes while allowing the connection circuit boards to move independently for power reset operations. The substrate mediates between the need for stability and the need for flexibility.
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 solution enables efficient and reliable electrical connection management, allowing for simple disconnection and reconnection of battery modules and circuit boards, effectively supporting power reset operations while minimizing mechanical stress and facilitating maintenance.
Implementation Method 1
an elastic hook coupled to an outer surface of the fastening post and having a variable protruding height by pressing
Data Source
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AI summary
A fastening device of a battery pack that fastens an electrical connection between a battery module and a circuit board managing the battery module, the fastening device including a substrate including a plurality of fastening holes, a plurality of connection circuit boards coupled to a surface of the substrate facing the circuit board and electrically connecting the battery module and the circuit board when in contact with the circuit board, and a plurality of fastening hooks fastened to the plurality of fastening holes capable of fixing a position of the substrate so that the plurality of connection circuit boards come into contact with the circuit board, the plurality of connection circuit boards each respectively including a first end portion electrically connected to the battery module, and a second end portion coupled to the substrate and electrically connected to the circuit board when in contact with the circuit board.