Photovoltaic Module Cutter Layout to Avoid Heat and Glass Collision
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Solution Overview
Problem
Current methods for dismantling photovoltaic modules, such as using grinding stones, face issues like material scorching and reduced collection rates due to heat generation, and require additional processes like grinding stone dressing, which can lead to decreased cutting efficiency and clogging of suction nozzles.
Innovation Solution
A partial dismantling device equipped with a worktable, first and second cutting units with spaced cutters, and a guide unit to prevent collision and heat generation, allowing for efficient cutting and separation of photovoltaic module components without additional processes like grinding stone dressing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a porous grinding stone is used to remove the sandwich of a photovoltaic module, then the sandwich can be removed, but heat is generated causing the sandwich to scorch and stick to the grinding stone, reducing material collection rate
Solution Approach 1:
The patent replaces the mechanical grinding system with a cutting system. Instead of using a porous grinding stone that generates heat through friction, the invention employs cutters that mechanically sever the sandwich material. This substitution eliminates the heat generation problem that caused material to scorch and stick to the grinding stone, thereby maintaining high material collection rates while achieving efficient sandwich removal.
Solution Approach 2:
The patent changes the operational parameters of the removal process by switching from a grinding mechanism to a cutting mechanism. The cutters are designed to cut through the sandwich material with minimal friction and heat generation. Additionally, the system incorporates a pressing plate that applies pressure to keep the sandwich flat during cutting, and a suction nozzle that removes pulverized particles without clogging, thereby optimizing both removal efficiency and material collection rate.
2Productivity
If a porous grinding stone is used for grinding, then the sandwich can be removed, but the grinding stone requires additional dressing processes which reduce cutting efficiency and cause clogging of suction nozzles
Solution Approach 1:
The patent replaces the grinding stone system with a cutter-based cutting system. This substitution eliminates the need for grinding stone dressing processes, as the cutters do not require the same maintenance. The cutting mechanism directly severs the sandwich material without generating the same type of residue that would clog suction nozzles, thereby reducing device complexity and eliminating additional processing steps.
Solution Approach 2:
The patent extracts the problematic elements from the system - specifically, it removes the porous grinding stone and the associated dressing process. By using cutters instead, the system eliminates the source of pulverized particles that would clog suction nozzles. The design also extracts the need for complex dressing mechanisms, simplifying the overall system while maintaining sandwich removal capability.
3Productivity
If cutters are used to cut the photovoltaic module, then efficient removal can be achieved, but the cutter may collide with the front surface member made of tempered glass, damaging the cutter and reducing cutting efficiency
Solution Approach 1:
The patent applies preliminary action by using the pressing plate to secure and flatten the sandwich material before the cutters make contact. This pre-positioning ensures that the sandwich is held firmly in place, preventing it from shifting or bouncing during the cutting process. By stabilizing the workpiece beforehand, the cutters can operate efficiently without risk of collision with the front surface member, thereby protecting cutter durability while maintaining cutting efficiency.
Solution Approach 2:
The pressing plate serves as an intermediary element between the sandwich material and the cutters. It provides a stable platform that holds the sandwich in place, mediating the interaction between the cutting tool and the workpiece. This intermediary mechanism prevents direct collision between the cutters and the front surface member by ensuring the sandwich remains properly positioned and flattened throughout the cutting process.
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
Enables efficient removal of photovoltaic module sandwiches and back surface members with improved cutting efficiency and reduced risk of clogging, allowing for effective recycling of valuable materials without damaging cutters or reducing material collection rates.
Implementation Method 1
pressurizing and fixing the photovoltaic module by using a cutting module
Implementation Method 2
a first cutting unit, having a plurality of first cutters spaced apart from each other, that cuts a part of the photovoltaic module
Implementation Method 3
a suction nozzle for suctioning pulverized particles generated in the photovoltaic module pulverizing process
Data Source
AI summary
According to an embodiment of the invention, there is provided a partial dismantling device of a photovoltaic module, including: a worktable on which the photovoltaic module is loaded and which has a first transport unit that transports the loaded photovoltaic module; a first cutting unit, having a plurality of first cutters spaced apart from each other, that cuts a part of the photovoltaic module through a relative movement with respect to the photovoltaic module loaded on the worktable; and a second cutting unit, having a plurality of second cutters spaced apart from each other, that is disposed at the rear of the first cutting unit and cuts other parts of the photovoltaic module transported rearward without being cut by the first cutting unit.