Magnetic Pulse Coil Insulation Mask for Fast Assembly
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Solution Overview
Problem
The existing methods for electrically insulating coils used in magnetic pulse deformation of metal parts are tedious, expensive, and prone to quality issues due to the complexity of applying polyimide polymer sheets on coils with intricate geometric shapes, leading to inefficiencies and potential damage.
Innovation Solution
An integral electrically insulating mask is designed to complement the shape of the coil, allowing for rapid and simple assembly, detachable for easy maintenance and quality control, made from flexible or elastic materials like silicone to ensure mechanical resistance and stability, reducing production costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If polyimide polymer sheets are applied to the coil surface for electrical insulation, then electrical insulation is achieved, but the application process becomes tedious and complex
Solution Approach 1:
The patent combines multiple functions into a single integrated mask component: electrical insulation, mechanical protection, and geometric guidance for the workpiece. This single mask replaces the complex multi-step process of applying and adhering separate polyimide sheets, thereby achieving reliable electrical insulation while dramatically simplifying the overall process.
Solution Approach 2:
The mask serves as an intermediary component between the coil and the workpiece, providing electrical insulation without requiring direct application of insulating material to the coil surface. This mediator approach eliminates the tedious sheet application process while maintaining reliable insulation.
2Reliability
If polyimide sheets are applied to complex geometric shapes, then electrical insulation is achieved, but application time and cost increase
Solution Approach 1:
The mask is pre-formed with the exact geometric shape needed to match the coil's complex geometry and the workpiece requirements. This preliminary preparation eliminates the time-consuming process of applying and shaping polyimide sheets during assembly, as the mask is already configured for immediate use.
Solution Approach 2:
The mask is created as a precise copy or replica of the required geometric configuration, capturing the complex shape relationships in advance. This allows the mask to be manufactured separately and applied as a complete solution, rather than building up insulation layer by layer on the complex geometry.
3Strength
If adhesive tape is applied to protect polyimide sheets, then mechanical protection is achieved, but the process becomes more tedious and expensive
Solution Approach 1:
The mask integrates mechanical protection functionality directly into its structure, eliminating the need for separate adhesive tape layers. The mask material itself provides the necessary mechanical strength and protection, combining multiple protective functions into a single component.
4Reliability
If polyimide sheets are used for insulation, then electrical insulation is achieved, but the sheets lack mechanical resistance and are prone to damage
Solution Approach 1:
The mask is made from composite or reinforced materials that simultaneously provide excellent electrical insulation properties and high mechanical resistance. This composite approach overcomes the weakness of pure polyimide sheets by integrating materials with complementary properties into a single structural component.
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 enables rapid, cost-effective, and efficient insulation of coils, reducing the complexity of application and maintenance, ensuring consistent results and extending the lifespan of the insulating material independently of the coil, thus improving the overall efficiency and reliability of magnetic pulse deformation processes.
Implementation Method 1
The capacitor or capacitors are used to store a certain amount of electrical energy. The intense magnetic field created is the result of a very rapid discharge of this electrical energy into the coil in the form of a variable current of very high intensity
Implementation Method 2
The current generates a variable magnetic field between the coil and the part, previously placed close by, and induces Eddy currents in this part. These Eddy currents, associated with the surrounding magnetic field develop in the part forces that cause a sharp acceleration of said part
Data Source
AI summary
An assembly to deform metal parts by magnetic pulse includes an induction coil having branches connected to a power supply. The branches extend adjacent to one another to define a slot. An active portion of the coil connected to the first and second branches, an active surface of the active portion being arranged opposite a part to be deformed. The assembly includes an integral mask cooperating in a detachable manner with all or a portion of the coil when the mask is in an operating position on the coil. The mask having a shape that is at least partially complementary to the shape of the coil such that when it is in the operating position, a first portion of the mask is inserted into the slot and a second portion of the mask covers the active surface of the coil. The mask being made of an electrically insulating material.