Flexible Printed Circuit Board With Deformation Portions
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Solution Overview
Problem
The existing configuration for a wiring module attached to a battery block requires two flexible printed circuit boards, increasing production costs due to the need for multiple components and wasted space on a single wide flexible printed circuit board when trying to detect voltage between terminal rows.
Innovation Solution
A flexible printed circuit board design with a proximal end portion and two strip portions, where conductive paths span from the proximal end to each strip portion, including deformation portions that can adjust the distance between them, allowing for a single board to connect multiple electrode terminals without wasted space, thus reducing the number of components and production costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If two flexible printed circuit boards are used to detect voltage between first and second terminal rows, then voltage detection between terminal rows is achieved, but the number of components increases and production cost increases
Solution Approach 1:
The patent combines two separate flexible printed circuit boards into a single FPCB that can detect voltage between both the first terminal row and the second terminal row. The FPCB includes first conductive paths connected to the first terminal row and second conductive paths connected to the second terminal row, eliminating the need for separate FPCBs and reducing component count while maintaining voltage detection functionality.
Solution Approach 2:
The single flexible printed circuit board is designed to perform multiple functions: it detects voltage between the first terminal row through first conductive paths and simultaneously detects voltage between the second terminal row through second conductive paths. This multi-functional design replaces what previously required two separate specialized FPCBs.
2Device complexity
If one wide flexible printed circuit board is used to detect voltage between terminal rows, then the number of components decreases, but wasted space is created where circuits are not formed
Solution Approach 1:
The flexible printed circuit board is segmented into distinct functional regions: first conductive paths for connecting to the first terminal row, second conductive paths for connecting to the second terminal row, and deformation portions that allow spatial adjustment. This segmentation enables efficient use of the FPCB area by assigning specific functions to specific regions, eliminating wasted space.
Solution Approach 2:
The FPCB includes deformation portions that can be bent or folded to adjust the layout and spacing of conductive paths. This dynamic configurability allows the circuit board to adapt its shape to minimize wasted space while maintaining all necessary electrical connections, optimizing material utilization.
3Adaptability or versatility
If flexible printed circuit boards are formed individually according to the interval between electrode terminals, then adaptability to different intervals is achieved, but production cost increases
Solution Approach 1:
The FPCB incorporates deformation portions that can be bent or folded to different degrees, allowing the same basic FPCB design to adapt to different intervals between electrode terminals. By adjusting the deformation of these portions, the FPCB can accommodate various spacing requirements without requiring custom-designed boards for each interval.
Solution Approach 2:
The physical configuration of the FPCB is made changeable through deformation portions that can be adjusted to different positions and angles. This parameter change capability allows a single FPCB design to fit multiple applications with different terminal intervals, reducing the need for multiple specialized designs and lowering production costs.
Data Source
AI summary
A flexible printed circuit board includes: a proximal end portion; a left strip portion and a right strip portion that extend in the rear direction from the proximal end portion; and conductive paths, a portion of which is provided spanning from the proximal end portion to the left strip portion, and another portion of which is provided spanning from the proximal end portion to the right strip portion. In portions of the conductive path in the left strip portion and the right strip portion, strip side connecting portions that are electrically connected to electrode terminals of electricity storage devices are provided. In the left strip portion, a deformation portion that deforms to increase the distance between the left strip portion and the right strip portion is provided.