Sewn Coil Module Layout for Flat Wireless Charging Mouse Pads
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Solution Overview
Problem
Conventional wireless charging mouse pads require grooves to accommodate coils, leading to increased manufacturing costs and uneven operating surfaces, resulting in defective products.
Innovation Solution
A wireless charging mouse pad design that incorporates an induction coil sewn onto a fabric element using a lead and sewing wire, sandwiched between two pad plates, eliminating the need for grooves and improving manufacturing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If grooves are disposed in the mouse pad to accommodate the coil, then the coil can be integrated into the mouse pad, but the manufacturing costs increase and the operating surface becomes uneven
Solution Approach 1:
The patent extracts the coil from the traditional groove-based integration method and repositions it onto the bottom surface of the mouse pad body. This extraction eliminates the need for grooves while maintaining coil integration, thereby reducing manufacturing complexity and cost.
Solution Approach 2:
The patent transitions the coil placement from a planar integration (within grooves on the surface) to a vertical integration (on the bottom surface). This dimensional change allows the coil to be accommodated without creating surface unevenness, solving both the integration and surface flatness requirements.
2Adaptability or versatility
If grooves are disposed in the mouse pad to accommodate the coil, then the coil can be integrated into the mouse pad, but the operating surface becomes uneven resulting in defective products
Solution Approach 1:
The patent extracts the coil from the groove structure and places it on the bottom surface of the mouse pad body. This extraction eliminates the grooves that caused surface unevenness, thereby maintaining surface flatness while achieving coil integration.
Solution Approach 2:
The patent moves the coil integration from the horizontal dimension (surface grooves) to the vertical dimension (bottom surface attachment). This dimensional shift ensures that the operating surface remains flat and even, eliminating the defect issue while maintaining coil functionality.
3Adaptability or versatility
If traditional groove-based coil accommodation is used, then coil integration is achieved, but manufacturing complexity and costs increase
Solution Approach 1:
The patent extracts the coil from the complex groove-based integration system and simplifies it by attaching directly to the bottom surface. This eliminates the need for groove fabrication, reducing manufacturing process complexity and steps.
Solution Approach 2:
Instead of integrating the coil into the mouse pad from the top surface (traditional approach), the patent inverts the integration approach by attaching the coil to the bottom surface. This inversion simplifies the manufacturing process by eliminating groove creation steps.
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
Reduces manufacturing costs and enhances the yield of finished products by integrating the coil within the pad structure without grooves, ensuring a smooth and even operating surface.
Implementation Method 1
uses a coil buried in the mouse pad to wirelessly charge the battery of the wirelessly chargeable optical mouse
Data Source
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AI summary
A wirelessly chargeable mouse pad (10) includes a first pad plate (1), a second pad plate (2), a coil module (3) and a surface layer (4). The coil module (3) is sandwiched between the first pad plate (1) and the second pad plate (2) and includes a fabric element (31), an induction coil (32), a lead wire (33) and a sewing wire (34). The fabric element (31) has a first face (311) and a second face (312), which are opposite to each other, and is disposed with multiple through holes (313) penetrating through the first face (311) and the second face (312). The induction coil (32) is superposed on the first face (311). The lead wire (33) is disposed on the second face (312) and arranged correspondingly to the induction coil (32). The sewing wire (34) is wound about the induction coil (32) and penetrates through the through holes (313) to be tied with the lead wire (33) so that the induction coil (32) is sewed on the fabric element (31). The surface layer (4) is covered on a surface of the first pad plate (1), which is away from the coil module (3).