Bus Bar Module Heat Shielding Plate
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing battery pack designs fail to effectively manage heat generated by batteries, leading to elevated temperatures that can damage circuit elements on nearby circuit boards.
Innovation Solution
A bus bar module with resin-made holding members and a metallic heat shielding plate is used to separate the circuit board from the battery assembly, incorporating a bridging member with a frame-shaped supporting unit to hold the circuit board and heat shielding plate, preventing direct heat conduction and radiation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If a metallic duct is used to guide gas from the battery, then gas venting is improved, but heat conduction from the battery to the circuit board increases
Solution Approach 1:
The patent introduces a heat shielding plate as an intermediary component positioned between the metallic duct and the circuit board. This heat shielding plate acts as a thermal barrier that blocks heat conduction from the metallic duct to the circuit board, while allowing the metallic duct to continue its gas venting function. The heat shielding plate is specifically designed to intercept thermal energy transmitted through the metallic duct before it reaches the circuit board, thus resolving the contradiction between gas venting improvement and heat conduction prevention.
2Device complexity
If the circuit board is attached directly to the bus bar module, then device complexity is reduced, but heat exposure to circuit elements increases
Solution Approach 1:
The heat shielding plate serves as a thermal intermediary inserted between the bus bar module and the circuit board. It allows the circuit board to remain mounted on the bus bar module for structural simplicity, while the heat shielding plate blocks direct heat transmission from the battery and bus bars to the circuit board, thereby protecting circuit elements from excessive heat exposure.
Solution Approach 2:
The invention extracts the heat shielding function as a separate component from the mounting structure. Instead of integrating heat protection into the bus bar module itself, a dedicated heat shielding plate is added, which can be positioned optimally to block heat paths without complicating the overall mounting architecture.
3Device complexity
If no heat shielding is provided, then device complexity is minimized, but circuit elements are exposed to high temperature
Solution Approach 1:
A heat shielding plate is introduced as a simple intermediary component that provides thermal protection to circuit elements. This single plate creates an effective thermal barrier between the heat-generating battery and bus bar components and the temperature-sensitive circuit board, significantly improving circuit element reliability without adding complex thermal management systems.
Solution Approach 2:
The heat shielding plate is implemented as a simple, inexpensive metallic or heat-resistant component that can be easily manufactured and installed. Rather than using complex active cooling systems or sophisticated thermal management architectures, this simple passive heat shield provides effective protection at minimal cost and structural complexity.
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 configuration effectively suppresses the increase in temperature of the circuit board, protecting circuit elements from heat-related damage and enhancing design flexibility and operational efficiency.
Implementation Method 1
a heat shielding plate that is disposed at an interval with respect to the circuit board between the circuit board and the battery assembly
Data Source
AI summary
A bus bar module includes a plurality of first bus bars, a plurality of second bus bars, a resin-made case, a resin-made case, and a resin-made bridging member. The first bus bars electrically connect electrode terminals to each other in a first electrode row arranged in the same direction included in a battery assembly that is a plurality of batteries superimposed in the same direction, and electrically connect the electrode terminals of the two adjacent batteries to each other in the one electrode row. The second bus bars electrically connect electrode terminals of the two adjacent batteries to each other in a second electrode row in the battery assembly. The case holds the first bus bars. The case holds the second bus bars. The bridging member bridges these cases.