Battery Assembly Terminal Layout Without PCB Perforation Welding
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Solution Overview
Problem
Current battery assembly methods require complex welding fixtures and reduce the structural strength and layout area of circuit boards due to the need for perforation welding, leading to inefficiencies and safety risks.
Innovation Solution
A battery assembly design where electrode terminals are welded to a conductive member on the side of the circuit board, eliminating the need for perforation and allowing for increased structural strength and layout area, with the conductive member and connection region arranged in a specific direction to enhance assembly efficiency and seismic performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If electrode terminals are connected to the circuit board by perforation welding, then the connection is achieved, but the welding fixtures become more complex and assembly efficiency decreases
Solution Approach 1:
The patent extracts the electrode terminals from the traditional perforation path and routes them through a dedicated terminal passage in the battery housing. This separates the terminal connection function from the circuit board structure, eliminating the need for complex welding fixtures that must accommodate perforation through the board while maintaining assembly efficiency
Solution Approach 2:
The patent introduces the battery housing as an intermediary component that contains the terminal passage. This mediator allows electrode terminals to be connected to the circuit board without requiring direct perforation welding through the board itself, simplifying the welding fixture design and improving assembly efficiency
2Ease of manufacture
If via holes are provided in the circuit board for perforation welding, then electrode terminals can be connected, but the structural strength of the circuit board is reduced
Solution Approach 1:
The patent extracts the via hole requirement from the circuit board design by routing electrode terminals through a passage in the battery housing instead. This removes the structural weakness caused by via holes while maintaining the electrical connection function between terminals and circuit board
Solution Approach 2:
The battery housing serves as an intermediary structure that provides the terminal passage, transferring the connection function away from the circuit board. This allows the circuit board to maintain its full structural strength without compromising the electrode terminal connection capability
3Ease of manufacture
If via holes are provided in the circuit board, then welding connection is enabled, but the board layout area is reduced and circuit board area increases
Solution Approach 1:
The patent extracts the terminal routing function from the circuit board interior by creating a dedicated terminal passage in the battery housing. This eliminates the need for via holes within the circuit board, preserving the full board layout area for electronic components while maintaining welding connection capability at the board surface
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 simplifies the connection process, improves assembly efficiency, increases the structural strength and layout area of the circuit board, and enhances the seismic performance of the battery assembly, reducing the risk of damage to electrode terminals.
Implementation Method 1
the welding sections are welded with the conductive member
Data Source
AI summary
A battery assembly includes a circuit board, a conductive member and battery cells, the circuit board is provided with a connection region, and the conductive member is connected with the connection region. The battery cells include battery cell housings and electrode terminals, the electrode terminals extend out of the battery cell housings, the parts of the electrode terminals extending out of the battery cell housings include welding sections, and the welding sections are welded with the conductive member. In a first direction, the welding sections, the conductive member and the connection region are arranged; and viewed in an opposite direction of the first direction, the circuit board covers the welding sections.