Laser Welding Head Cooling Structure to Prevent Thermal Deformation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The laser welding head in battery production is prone to high-temperature deformation during the welding process, affecting the reliability and yield of the welding process due to thermal radiation and accumulation of heat, leading to defects such as bumpy spots and wavy lines on the weld surface.
Innovation Solution
A welding device with a cooling mechanism arranged on the side wall of the laser welding head, utilizing a connecting pipe with an accommodating groove and limiting assemblies to secure the cooling mechanism, combined with thermally conductive materials and multiple cooling pipes to enhance cooling efficiency and prevent separation, thereby reducing high-temperature deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a cooling mechanism is added to cool the laser welding head, then the temperature control and deformation prevention are improved, but the device complexity increases
Solution Approach 1:
The cooling mechanism is nested within the laser welding head structure. The cooling pipe is arranged inside the laser welding head body, allowing the cooling function to be integrated into the existing structure rather than adding external components, thus reducing overall device complexity while maintaining effective temperature control
Solution Approach 2:
The patent uses a hydraulic cooling system with cooling liquid circulating through the cooling pipe to remove heat from the laser welding head. This hydraulic approach provides efficient heat dissipation through fluid circulation, effectively controlling the temperature without requiring complex mechanical cooling mechanisms
2Temperature
If the cooling mechanism is sleeved on the connecting pipe to improve cooling effect, then the cooling efficiency is improved, but the reliability of relative position decreases
Solution Approach 1:
The patent incorporates a limiting assembly that preliminarily constrains the cooling mechanism's position relative to the connecting pipe. This limiting structure is built into the design from the beginning, preventing position drift before it can occur during operation, thus maintaining both cooling efficiency and positional reliability
Solution Approach 2:
The limiting assembly provides localized positional constraint at specific critical points where the cooling mechanism interfaces with the connecting pipe. Rather than requiring the entire cooling mechanism to be rigidly fixed, only the critical interface positions are constrained, maintaining flexibility while ensuring positional stability
3Reliability
If multiple limiting assemblies are added to prevent separation, then the positional stability is improved, but the device complexity increases
Solution Approach 1:
The patent uses a limited number of limiting assemblies positioned at key locations rather than providing continuous constraint along the entire cooling mechanism. This partial action approach provides sufficient positional stability at critical points without the excessive complexity of complete constraint, achieving reliability with minimal added structure
Solution Approach 2:
The limiting assemblies are merged with the existing connecting pipe and cooling mechanism structures. Rather than being separate additional components, the limiting features are integrated into the design of the connecting pipe and cooling mechanism, reducing overall device complexity while maintaining positional stability
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
The solution effectively reduces the risk of high-temperature deformation, improves the laser welding effect, and prolongs the service life of the welding device by ensuring consistent cooling and positional stability of the cooling mechanism.
Implementation Method 1
The connecting pipe and the nozzle are made of thermally conductive materials... the cooling effect of the cooling mechanism on the connecting pipe can be conducted to the nozzle
Data Source
Figure 1
Figure 2~3
AI summary
The present application provides a welding device comprising a laser welding head and a cooling mechanism, wherein the laser welding head is provided with a channel for laser to pass through, and the cooling device is arranged on a side wall of the laser welding head and used for cooling the laser welding head. In the embodiments of the present application, the cooling mechanism is arranged on a side wall of the laser welding head, so that the laser welding head can be cooled by the cooling mechanism in the process of welding by using the laser welding head, which reduces the risk of high-temperature deformation of the laser welding head due to too high temperature, improves the laser welding effect, and prolongs the service life of the welding device.