Battery Module Spacer Frame for Stable Electrical Contact
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Solution Overview
Problem
Existing battery module connections compromise mechanical flexibility and stability due to materially bonded electrical connections, leading to mechanical overload and poor electrical contact quality.
Innovation Solution
A spacer frame is introduced between adjacent battery modules, decoupling mechanical and electrical connections, with openings for electrical contact and fluid channels for temperature control, and latching connectors for stability, allowing for flexible and stable battery cell arrangement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If battery cells are materially bonded to contact springs on a plate, then electrical contact quality is improved, but mechanical flexibility and stability deteriorate
Solution Approach 1:
The device separates electrical connection and mechanical connection into independent components: contact springs provide electrical connection while a separate bearing plate provides mechanical support. This segmentation allows each component to optimize its specific function without compromising the other.
Solution Approach 2:
A bearing plate is introduced as an intermediary component between the battery cells and the contact springs. This mediator absorbs mechanical loads and prevents them from being transmitted to the battery cells, while allowing the contact springs to maintain reliable electrical contact.
2Stability of the object's composition
If battery modules are rigidly connected, then mechanical stability is improved, but electrical contact quality deteriorates due to lateral movement of poles
Solution Approach 1:
The connection system is divided into separate functional elements: the bearing plate provides rigid mechanical support and stability, while the contact springs provide flexible electrical connection that accommodates lateral movements of battery cell poles without compromising contact quality.
3Reliability
If battery cells are mechanically coupled through contact springs, then electrical connection is achieved, but mechanical overdetermination occurs under load
Solution Approach 1:
The mechanical support function is separated from the electrical connection function. The bearing plate handles all mechanical loads independently, while the contact springs focus solely on providing electrical connection. This eliminates the mechanical overdetermination that would occur if contact springs had to simultaneously provide both electrical connection and mechanical support.
Data Source
AI summary
A device has a plurality of battery modules (1) which are arranged one behind the other in a joining direction (F) and each have a main body (2) interspersed with a group of battery cells (3) in the joining direction (F). The electrical connection of the battery modules is decoupled from their mechanical connection, and a spacer frame (4) is provided between adjacent battery modules (1), which spacer frame (4) comprises at least one spacer (5) supported against the main bodies (2) of the battery modules (1) and openings (6) for multiple electrical contacting of the battery modules (1).