Battery Connection Module Bridging Piece Buffering Segment

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Solution Overview

Problem

Existing battery connection modules fail to effectively compensate for relative movement and expansion between busbars and circuit boards, leading to unstable signal collection and reduced service life due to shear forces and dynamic movements in battery packs, especially in electrical automobiles.

Innovation Solution

A battery connection module featuring bridging pieces with buffering segments composed of symmetrically arranged buffering strips, which include curving portions and step connecting portions, providing enhanced deformation capability and anti-vibration effects to compensate for relative movement and expansion, while also improving welding holding force through welding apertures and legs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a rigid connecting member is used to connect the busbar and circuit board, then the welding holding force is improved, but the ability to compensate for relative movement and expansion deteriorates

Engineering Contradiction:
Improvewelding holding forceVSAvoidcompensation for relative movement and expansion
Core Design Contradiction:
StrengthVSAdaptability or versatility

Solution Approach 1:

The bridging piece is divided into multiple segments: a rigid circuit board connection segment for stable welding to the circuit board, a rigid busbar connection segment for stable welding to the busbar, and a flexible buffering segment with buffering strips that can deform to compensate for relative movement and thermal expansion. This segmentation allows each part to perform its specialized function optimally.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different parts of the bridging piece have different mechanical properties tailored to their specific functions. The circuit board connection segment and busbar connection segment are designed with higher rigidity for stable electrical connection, while the buffering segment is designed with flexibility and deformation capability to absorb movement and expansion stresses locally.

Inventive Principle:
Principle #3Local quality

2Duration of action of stationary object

If a flexible buffering structure is used to compensate for relative movement, then the service life is improved, but the welding holding force deteriorates

Engineering Contradiction:
Improveservice lifeVSAvoidwelding holding force
Core Design Contradiction:
Duration of action of stationary objectVSStrength

Solution Approach 1:

The bridging piece is divided into multiple segments: a rigid circuit board connection segment for stable welding to the circuit board, a rigid busbar connection segment for stable welding to the busbar, and a flexible buffering segment with buffering strips that can deform to compensate for relative movement and thermal expansion. This segmentation allows each part to perform its specialized function optimally.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different parts of the bridging piece have different mechanical properties tailored to their specific functions. The circuit board connection segment and busbar connection segment are designed with higher rigidity for stable electrical connection, while the buffering segment is designed with flexibility and deformation capability to absorb movement and expansion stresses locally.

Inventive Principle:
Principle #3Local quality

3Device complexity

If a simple linear connecting structure is used, then the device complexity is reduced, but the deformation capability and anti-vibration effect deteriorate

Engineering Contradiction:
Improvestructure complexityVSAvoiddeformation capability and anti-vibration effect
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The buffering segment incorporates buffering strips with curving portions that can dynamically deform in response to relative movement, vibration, and thermal expansion. This dynamic deformation capability allows the structure to adapt to varying operational conditions without requiring complex active control systems.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The buffering strips include curving portions that utilize three-dimensional spatial configuration to achieve deformation capability. The curving portions can bend and deform in multiple directions, providing anti-vibration and compensation effects that would be difficult to achieve with simple linear structures.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 enhances the deformation capability and anti-vibration effects of the bridging pieces, stabilizing signal collection and extending the service life of the battery connection module by effectively compensating for relative movement and expansion between the circuit board and busbar, and improving the welding holding force.

Implementation Method 1

each buffering strip has at least one curving portion... enhancing the deformation capability... to compensate for relative movement and expansion

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentUS20220255141A1Battery connection module
Publication Date: 2022.08.11 MOLEX INC
  • US20220255141A1 patent drawing
  • US20220255141A1 patent drawing
  • US20220255141A1 patent drawing

AI summary

A battery connection module is provided and is adapted to connect a plurality of batteries, the battery connection module includes busbars, a circuit board and bridging pieces. The busbars are used to be connected to the batteries. The bridging pieces are connected between the corresponding busbars and the circuit board, each bridging piece has a circuit board connection segment and a busbar connection segment which are arranged along a straight direction and are respectively connected to the circuit board and the corresponding busbar and a buffering segment which is positioned between the circuit board connection segment and the busbar connection segment, the buffering segment includes at least two buffering strips, the at least two buffering strips are constructed as symmetry in a transverse direction with respect to a central line extending along the straight direction, each buffering strip has at least one curving portion.