Electrical apparatus
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Solution Overview
Problem
In electrical appliances with pivoting parts, the need to pass wires through hinge holes complicates assembly and disassembly, limits the number of power consumption devices, and causes wire fatigue and failure due to reciprocating motion during pivoting.
Innovation Solution
An electrical apparatus with a main body and a pivotal part connected by a hinge device, featuring a first coil on the main body and a second coil on the pivotal part, where the first coil partially passes through the second coil to establish an electromagnetic coupling for wireless power transmission, eliminating the need for wires through the hinge hole.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wires are passed through hinge holes to transmit power between pivoting parts, then power transmission is achieved, but assembly and disassembly processes become complicated
Solution Approach 1:
The patent replaces the mechanical wire connection system through hinge holes with an electromagnetic wireless power transmission system using coils. The first coil is disposed on the stationary part and the second coil on the pivotal part, creating an electromagnetic coupling that transmits power without physical wire connections through the hinge mechanism.
2Reliability
If wires are passed through hinge holes, then power transmission is enabled, but the number of power consumption devices is limited due to limited hinge hole size
Solution Approach 1:
By replacing the mechanical wire constraint with electromagnetic coupling, the system can support multiple power consumption devices on the pivotal part without being limited by the physical space of hinge holes. The wireless electromagnetic field can accommodate multiple receivers simultaneously.
3Productivity
If wires pass through the hinge and are driven to reciprocate during pivoting movement, then power transmission occurs, but wire fatigue and failure occur, reducing reliability
Solution Approach 1:
The patent eliminates the mechanical wire reciprocation issue by substituting it with an electromagnetic field-based power transmission system. The coils generate and receive electromagnetic energy wirelessly, so no physical wires undergo stress or fatigue during the pivoting movement of the door relative to the body.
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 solution simplifies assembly and disassembly, increases the number of power consumption devices, and enhances the reliability of power transmission by avoiding wire fatigue and failure.
Implementation Method 1
The first coil at least partly passes through the second coil to form an electromagnetic coupling between the first coil and the second coil that wirelessly supplies power between the main body and the pivotal part
Data Source
AI summary
An electrical apparatus comprises a main body, a pivotal part pivotally connected to the main body, a first coil mounted on the main body, and a second coil mounted on the pivotal part. The first coil at least partly passes through the second coil to form an electromagnetic coupling between the first coil and the second coil that wirelessly supplies power between the main body and the pivotal part.