Loudspeaker Dual-Side Guide Elements
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing loudspeakers face insufficient translation guidance of the coil holder, leading to inadequate movement and potential misalignment within the magnetic circuit.
Innovation Solution
The loudspeaker design incorporates a larger axial spacing between guide elements on either side of the magnetic circuit, utilizing a suspension system with an O-ring and a corrugated joint ('spider') to improve the translation guidance of the movable assembly, ensuring precise alignment and preventing rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If guide elements are arranged close together in the axial direction, then the structure is compact, but the translational guidance of the coil holder is insufficient
Solution Approach 1:
The patent transitions from a single-sided guide element configuration to a dual-sided configuration, placing guide elements on both sides of the magnetic circuit along the axial direction. This dimensional change in the arrangement strategy enables improved translational guidance without compromising structural compactness, as the guide elements work cooperatively from opposite sides to constrain the coil holder's movement more effectively.
2Reliability
If guide elements are placed on the same side of the magnetic circuit, then the structure is simpler, but the translational guidance is inadequate
Solution Approach 1:
The patent divides the guidance function into two separate guide elements positioned on opposite sides of the magnetic circuit. This segmentation allows each guide element to independently provide stabilization while collectively achieving superior guidance reliability. The separation also simplifies the design of individual guide elements compared to a single complex multi-functional guide structure.
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 configuration enhances the translation guidance of the mobile assembly, maintaining precise alignment and allowing for efficient movement parallel to the axis while preventing rotational errors, thereby improving the overall performance of the loudspeaker.
Implementation Method 1
a coil holder carrying a coil and a membrane, the coil holder being mounted movable through the air gaps
Implementation Method 2
a first element for guiding the movable assembly arranged between the movable assembly and the chassis on the membrane side relative to the magnetic circuit
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The loudspeaker (1) includes a magnetic circuit (4). The loudspeaker (1) includes a moving assembly (5) movable relative to the magnetic circuit (4). The voice coil carrier (30) is movable through air gaps (77, 86), and a guiding element (105) for the moving assembly (5) is disposed between the moving assembly (5) and a chassis (3), on the side of a diaphragm (35) relative to the magnetic circuit (4). The moving assembly (5) passes completely through the magnetic circuit (4) via end air gaps (86, 87). The loudspeaker (1) includes a supplementary guiding element (110), disposed between the moving assembly (5) and the chassis (3), on the side opposite the diaphragm (35) relative to the magnetic circuit (4).