Multi-Nozzle TIM Injection for Battery Housing Coverage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing injection nozzles face challenges in efficiently and cost-effectively spraying thermal interface materials onto rechargeable battery housings with varying surface areas, leading to increased process time and complexity.
Innovation Solution
The proposed injection nozzle system includes a main nozzle and multiple sub-nozzles that are laterally coupled to cover the width of the battery housing surface, with screw-coupled coupling portions to prevent leakage and improve spray speed, allowing simultaneous spraying of thermal interface material across the surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single injection nozzle is used to spray thermal interface material, then the device structure is simple, but the spray coverage is limited and process time increases
Solution Approach 1:
The injection nozzle is divided into a main nozzle and multiple sub-nozzles. The main nozzle receives thermal interface material from the source and sprays it directly, while also distributing material to multiple sub-nozzles that spray in different directions. This segmentation allows simultaneous multi-point spraying, significantly increasing coverage area and productivity without requiring multiple separate nozzle systems.
2Area of stationary object
If multiple separate nozzles are used to cover large surface area, then spray coverage is improved, but the device complexity and number of components increases
Solution Approach 1:
Multiple nozzle functions are merged into a single integrated injection nozzle structure. The main nozzle body houses both the primary injection channel and multiple sub-nozzle channels, allowing the system to achieve wide area coverage with a single component assembly rather than multiple separate nozzles, thereby reducing overall system complexity.
Solution Approach 2:
The main nozzle serves multiple functions simultaneously: it acts as the primary spray nozzle for direct injection, functions as a distribution manifold to supply material to sub-nozzles, and provides structural support for the entire nozzle assembly. This multi-functionality reduces the need for separate components.
3Ease of manufacture
If conventional nozzle coupling is used, then assembly is simple, but leakage occurs reducing reliability
Solution Approach 1:
The coupling portion incorporates a rubber seal element within the coupling structure. This composite design combines the structural function of the rigid coupling portion with the sealing function of the rubber material, preventing leakage at the connection between main nozzle and sub-nozzles while maintaining ease of assembly through the integrated coupling mechanism.
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 reduces the process time and cost of spraying thermal interface materials, simplifies the injection process, and enhances productivity by minimizing the number of nozzle movements and manufacturing time for battery modules and packs.
Implementation Method 1
a main nozzle configured to receive the thermal interface material from a source and spray the thermal interface material to the surface of the rechargeable battery housing
Implementation Method 2
spray the thermal interface material supplied through the inflow hole to the surface of the rechargeable battery housing
Data Source
AI summary
An injection nozzle configured to spray a thermal interface material to a surface of a rechargeable battery housing, the injection nozzle includes a main nozzle that is configured to receive the thermal interface material from a source and spray the thermal interface material to the surface of the rechargeable battery housing; and a plurality of sub nozzles that are coupled to the main nozzle in a lateral direction, the plurality of sub nozzles being configured receive the thermal interface material from the main nozzle and spray the thermal interface material to the surface of the rechargeable battery housing.