Compact Double-Coil Guitar Pickup Assembly for Hum Reduction
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Solution Overview
Problem
Traditional double coil pickups are bulky, require extensive modifications, and are complex to install, limiting their use to certain guitar models and affecting the instrument's aesthetics, ergonomics, and sound quality.
Innovation Solution
A compact double coil guitar pickup assembly with a friction-fit design that combines two bobbins with protrusions and depressions for secure coupling, along with a lightweight and durable construction, and a printed circuit board for efficient signal transmission, addressing size, complexity, and noise reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If traditional double coil pickups are used, then noise cancellation is improved, but the size and weight increase
Solution Approach 1:
The pickup assembly is divided into two separate coil assemblies, each containing its own bobbin and magnet structure. These segmented coil assemblies are positioned side-by-side rather than using a single large dual-coil unit, reducing overall weight while maintaining noise cancellation through differential signaling between the two coils
Solution Approach 2:
The patent changes the physical parameters of the pickup by using lighter materials for the bobbin (e.g., aluminum or plastic instead of heavy metal), reducing wire gauge thickness while maintaining electrical characteristics, and optimizing magnet size and positioning to achieve weight reduction without sacrificing noise rejection performance
2Object-affected harmful factors
If traditional double coil pickups are used, then noise cancellation is improved, but the installation complexity increases
Solution Approach 1:
The two coil assemblies are merged into a single integrated housing unit with pre-arranged magnetic pole configurations. The bobbins are positioned and secured together as one assembly, and the wiring harness is pre-configured with color-coded connections, transforming a complex multi-step installation into a single-unit replacement similar to installing a conventional pickup
Solution Approach 2:
The pickup assembly incorporates self-aligning features such as positioned mounting holes, keyed bobbin orientations, and pre-routed wire channels that guide the installer through proper positioning and connection without requiring complex alignment procedures or specialized wiring knowledge
3Object-affected harmful factors
If traditional double coil pickups are used, then noise cancellation is improved, but the guitar body modification requirements increase
Solution Approach 1:
The two coil assemblies are nested within a single common housing or mounting bracket that fits into the standard single-pickup cavity. The bobbins are positioned closely together with shared magnetic circuit elements and common mounting structure, allowing the dual-coil functionality to be accommodated within the space originally designed for a single coil pickup
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 assembly provides improved noise cancellation, ease of installation, and enhanced sound quality while fitting into standard guitar spaces, maintaining instrument aesthetics and ergonomics, and ensuring reliable performance.
Implementation Method 1
A pickup is a transducer that captures or senses mechanical vibrations produced by musical instruments, particularly stringed instruments such as the electric guitar, and converts these to an electrical signal
Implementation Method 2
By using two coils with reverse polarity and wiring them in series, humbuckers effectively cancel out electromagnetic interference, providing a much cleaner and noise-free signal
Data Source
AI summary
A double coil guitar pickup assembly includes a first and a second bobbin, wherein each bobbin includes a center section with a hollow interior, a coil wrapped around the center section, a top flange with a diameter greater than a diameter of the center section, and a bottom flange, wherein the top flange has a lateral-facing protrusion and adjacent depression, wherein the first and second bobbins are coupled such that the protrusion of the first bobbin fits securely within the depression of the second bobbin, and such that the protrusion of the second bobbin fits securely within the depression of the first bobbin, and, a cover configured to fit securely over the first and second bobbins, including a pair of fastening orifices configured for fastening the cover to a guitar.