Battery Pack Circuit Board Protruding Surface Assembly
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Solution Overview
Problem
Existing battery packs lack a compact and efficient design for connecting multiple secondary batteries in series and parallel configurations, which complicates the assembly and control of charging and discharging processes, particularly in miniaturized forms.
Innovation Solution
A battery pack design featuring a circuit board with protruding surfaces for electrical connections, lead tabs for interconnecting batteries, and holders for accommodating batteries, allowing for compact arrangement and easy assembly, with a protection circuit for controlling charging and discharging while preventing over-charging and over-discharging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple secondary batteries are connected in series and parallel to provide high output or high capacity, then the battery capacity and output are improved, but the assembly complexity and control difficulty increase
Solution Approach 1:
The patent combines multiple batteries and their interconnections into a single integrated battery pack assembly. The circuit board integrates control functions for multiple batteries, and the holder structure consolidates mechanical support and electrical connections, reducing overall assembly complexity despite increased battery quantity.
Solution Approach 2:
The circuit board serves multiple functions simultaneously: it controls charging and discharging of multiple batteries, provides electrical interconnections between batteries in series and parallel configurations, and integrates protection functions. This multi-functionality reduces the need for separate components and simplifies the overall assembly.
2Quantity of substance
If multiple secondary batteries are connected in series and parallel to provide high output or high capacity, then the battery capacity and output are improved, but the control of charging and discharging processes becomes more difficult
Solution Approach 1:
The circuit board merges control functions for multiple batteries into a single integrated unit. It consolidates charging control, discharging control, and protection functions across all batteries, making the control process easier despite the increased number of batteries.
Solution Approach 2:
The circuit board acts as an intermediary between the multiple batteries and the external charging/discharging system. It manages the complex interactions between batteries in series and parallel configurations, simplifying the control interface and making the system easier to operate.
3Volume of moving object
If a compact design is implemented for miniaturized battery packs, then the volume is reduced, but the connection and assembly efficiency may be compromised
Solution Approach 1:
The circuit board is nested within the holder structure, with the holder providing both mechanical support and electrical connections. The batteries are arranged compactly within the holder, utilizing vertical and horizontal space efficiently. This nesting approach reduces overall volume while maintaining assembly efficiency through integrated design.
Solution Approach 2:
The holder structure merges mechanical support functions with electrical connection functions. By combining these functions into a single component, the design achieves compact dimensions without requiring separate mounting structures, thereby maintaining assembly efficiency despite reduced volume.
Data Source
AI summary
A battery pack includes a plurality of batteries including a first battery and a second battery, and a circuit board including a main surface and a protruding surface extending from the main surface, the main surface being located at one surface of the first battery and the protruding surface being located at the second battery. The second battery is electrically connected to the circuit board through the protruding surface.