Magnetic Device Encapsulation Using Fluid Thermal Potting
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Solution Overview
Problem
The existing adhesive potting process for magnetic devices in electronic devices is time-consuming, leading to low production efficiency and high manufacturing costs due to the long curing time required.
Innovation Solution
An electromagnetic apparatus is designed with a shell and cover that encapsulates a magnetic device using a fluid thermally conductive medium, allowing the medium to cure within a sealed structure without a separate curing process, enhancing production efficiency by omitting the traditional curing step.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the adhesive potting process is used to encapsulate the magnetic device, then the magnetic device is protected and heat is transferred, but the curing process takes a long time which reduces production efficiency
Solution Approach 1:
The patent changes the physical state of the thermally conductive medium from solid adhesive to fluid state during assembly, allowing immediate encapsulation without curing wait time. The fluid medium is pumped into the shell cavity and immediately encapsulates the magnetic device, eliminating the time-consuming curing process while maintaining protection and heat transfer functions.
Solution Approach 2:
The patent uses a fluid thermally conductive medium that can be pumped and circulated through the encapsulation space. The fluid medium flows into the shell cavity and surrounds the magnetic device, providing both mechanical protection and thermal conduction without requiring chemical curing, thus improving production efficiency.
2Reliability
If the adhesive potting process is used to encapsulate the magnetic device, then the magnetic device is protected and heat is transferred, but the manufacturing cost increases
Solution Approach 1:
The patent changes the state of the encapsulating material from solid adhesive requiring curing to fluid medium that provides immediate encapsulation. This eliminates the curing process and reduces manufacturing time, thereby lowering labor and overhead costs associated with prolonged production cycles.
Solution Approach 2:
The fluid thermally conductive medium automatically fills the encapsulation space and surrounds the magnetic device through its own flow properties, eliminating the need for complex dispensing equipment and curing process control, thereby simplifying manufacturing and reducing costs.
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 approach reduces manufacturing time and costs by enabling immediate use of the magnetic device after assembly, improving production efficiency and sealing performance.
Implementation Method 1
The accommodating cavity may be filled with a fluid thermally conductive medium
Data Source
AI summary
An electromagnetic apparatus includes a shell, a magnetic device, and a cover. A first end of the shell has an opening. The shell has an accommodating cavity inside. The accommodating cavity couples with the opening. The accommodating cavity is filled with a fluid thermally conductive medium. The cover has a first surface and a second surface that are opposite to each other. The magnetic device is fastened to the first surface of the cover. The first surface of the cover faces the first end of the shell, and the cover is fastened to the shell such that the magnetic device is located in the accommodating cavity, and the thermally conductive medium encapsulates the magnetic device. When the foregoing solution is used, the cover is fastened to the shell, and the magnetic device is located in the accommodating cavity, so that the thermally conductive medium can encapsulate the magnetic device.