Battery Module Protective Coating for Slim ESD and Antenna Routing
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Solution Overview
Problem
Existing battery modules increase in thickness due to the inclusion of conductive tapes or metal layers for antenna signal transmission and ESD grounding, contradicting the trend of thin electronic product designs.
Innovation Solution
A battery module design featuring a protection assembly with an adhesive layer, support layer, and metal coating layer, where the metal coating layer is positioned at the outermost side, serving as both an antenna signal transmission path and ESD grounding path without requiring additional conductive tapes or metal layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a battery module uses a connection structure where battery packs are connected in parallel between upper and lower plates, then the electrical connection is simplified and assembly is facilitated, but the module height increases due to the need for separate upper and lower plates
Solution Approach 1:
The patent merges the support plate and connection terminal into a single integrated component. The support plate includes integrated connection terminals that directly connect battery packs in parallel, eliminating the need for separate upper and lower plates. This integration reduces the number of components and simplifies the overall structure while maintaining the electrical connection function.
Solution Approach 2:
The support plate is designed to perform multiple functions simultaneously: it provides mechanical support for the battery packs, serves as an electrical connection terminal for parallel connections, and acts as a structural element for fixing the battery packs. This multi-functionality reduces the need for separate components and helps reduce module height.
2Stability of the object's composition
If fixed members are used to secure battery packs to support plates, then the battery packs are firmly fixed and structural stability is improved, but the number of components increases and assembly complexity increases
Solution Approach 1:
The fixing member is integrated into the support plate as a unified component. The support plate includes protrusions that directly engage with recesses in the battery packs, providing fixation functionality without requiring separate fasteners or mounting hardware. This integration reduces the total component count while maintaining stable fixation.
3Ease of manufacture
If separate support plates and connection terminals are used, then the electrical connection function is clearly separated, but manufacturing cost increases and assembly steps increase
Solution Approach 1:
The support plate and connection terminal are manufactured as a single integrated component, reducing the number of parts that need to be produced, inventoried, and assembled. This integration simplifies the manufacturing process and reduces the total quantity of components while maintaining clear electrical connection functionality through the integrated terminals.
Data Source
Figure 1
AI summary
Disclosed is a battery module, which includes a battery assembly and a protection assembly. The battery assembly has an outer surface. The protection assembly covers the outer surface of the battery assembly, and the protection assembly includes an adhesive layer, a support layer and a metal coating layer. The adhesive layer and the metal coating layer are located at opposite sides of the support layer, respectively, and the adhesive layer is adhered to the outer surface.