Battery Connection Module With Buffered Bridging Arms for Stable Sensing
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Solution Overview
Problem
Existing battery connection modules face instability and reduced lifespan due to relative movement between busbars and circuit boards, inadequate compensation for thermal expansion, and interference from balance current affecting voltage detection precision.
Innovation Solution
The battery connection module incorporates bridging members with separate buffering arms and circuit board connecting portions, allowing for independent connection to balance current and voltage detection traces, enhancing deformation capability and anti-vibrating effects to compensate for relative movement and expansion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single connecting member is used between busbar and circuit board, then device complexity is reduced, but signal stability deteriorates due to balance current interference with voltage detection
Solution Approach 1:
The single connecting member is segmented into two separate connecting members: a first connecting member for balance current and a second connecting member for voltage detection. This segmentation eliminates the interference between balance current and voltage detection traces, thereby improving signal stability while maintaining reasonable device complexity.
2Manufacturing precision
If rigid connection is used between busbar and circuit board, then manufacturing precision is improved, but reliability deteriorates due to inability to compensate for thermal expansion and relative movement
Solution Approach 1:
The connecting members are designed with flexible parameters including curved buffer portions and adjustable connection points that allow the structure to adapt to thermal expansion and relative movement between busbar and circuit board, thereby improving reliability while maintaining manufacturing precision through controlled flexibility.
Solution Approach 2:
The connecting members incorporate dynamic elements such as curved buffer portions that can deform elastically to accommodate relative movement between the busbar and circuit board during thermal expansion and vibration, transforming a static rigid connection into a dynamic adaptive connection that maintains reliability.
3Adaptability or versatility
If folding portion is used for compensation, then adaptability is improved for up-down and front-rear movement, but manufacturing precision deteriorates due to weaker compensation capability in left-right direction
Solution Approach 1:
The buffer portion is designed with curved geometry that provides compensation capability in multiple dimensions including left-right direction, not just up-down and front-rear directions. This multi-dimensional buffer structure ensures uniform compensation precision across all movement directions while maintaining high adaptability.
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
This design improves signal stability and extends the working life of the battery connection module by separating balance current and voltage detection traces, enhancing deformation and anti-vibrating capabilities to manage relative movement and thermal expansion effectively.
Implementation Method 1
each bridging member has one busbar connecting portion, two circuit board connecting portions which are separated from each other and two buffering arms which are separated from each other; the busbar connecting portion of each bridging member is connected to the corresponding busbar, first ends of the two buffering arms are connected to the one busbar connecting portion and second ends of the two buffering arms are respectively connected with the two circuit board connecting portions
Data Source
AI summary
An embodiment discloses a battery connection module which is adapted to connect a plurality of batteries, the battery connection module includes a plurality of busbars which are electrically conductive, a circuit board and a plurality of bridging members which are electrically conductive. The plurality of busbars are used to be connected to the plurality of the batteries; each bridging member is connected between the corresponding the busbar and the circuit board; each bridging member has one busbar connecting portion, two circuit board connecting portions which are separated from each other and two buffering arms which are separated from each other; the busbar connecting portion of each bridging member is connected to the corresponding busbar, first ends of the two buffering arms are connected to the one busbar connecting portion and second ends of the two buffering arms are respectively connected with the two circuit board connecting portions, the two circuit board connecting portions of each bridging member are separately connected to two different traces of the circuit board.