Speaker Transducer Passive Radiator Integration
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Solution Overview
Problem
Miniaturization of speakers poses a challenge as the enclosure may not accommodate both a transducer and a passive radiator, necessitating a solution to optimize space and cost without compromising sound quality.
Innovation Solution
Combining a transducer with a passive radiator by having the transducer function as part or all of the center panel, thereby reducing the internal space and material requirements while maintaining sound quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a transducer and a passive radiator are mounted separately in the enclosure, then the speaker can achieve good bass performance, but the enclosure space is insufficient for miniaturization
Solution Approach 1:
The patent combines the transducer and passive radiator into a single integrated assembly where the transducer is mounted directly on the passive radiator's center panel. This merging eliminates the need for separate mounting spaces, allowing the speaker to achieve miniaturization while maintaining the bass performance that requires both components.
Solution Approach 2:
The transducer serves dual functions: it acts as both the active sound-producing element and as part of the passive radiator's center panel structure. This multi-functionality allows the same component to contribute to both active sound generation and passive bass enhancement, optimizing space utilization.
2Reliability
If a transducer and a passive radiator are mounted separately in the enclosure, then the bass performance can be augmented, but the material requirements and cost increase
Solution Approach 1:
By merging the transducer and passive radiator into a single assembly, the patent reduces the total material requirements. The transducer's housing and mounting structure are integrated with the passive radiator's center panel, eliminating redundant materials that would be needed for separate mounting brackets, seals, and isolation structures.
3Volume of moving object
If the transducer is combined with the passive radiator to function as part of the center panel, then the enclosure space is saved, but the structural complexity increases
Solution Approach 1:
The integration of the transducer with the passive radiator creates a unified structural assembly. The transducer is mounted directly on the center panel with integrated mounting structures, reducing the number of separate components and simplifying the overall assembly process despite the functional integration.
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 allows for miniaturization of speakers while saving space and cost without sacrificing sound quality by integrating the transducer into the passive radiator's center panel, enhancing the speaker's design efficiency.
Implementation Method 1
a transducer 12... which is an active device for converting electricity into sound
Implementation Method 2
the internal air pressure fluctuation caused by the transducer 12 in turn causes the passive radiator 13 to begin moving forward/backward so as to create sound frequencies
Implementation Method 3
The suspension 131 provides the compliance, that is, ensures the center panel 132 vibrates in the axial direction of the passive radiator 13 but does not in the radial direction thereof
Data Source
AI summary
A speaker and a method of producing a speaker, the speaker including: an enclosure; at least one transducer mounted in the enclosure; and at least one passive radiator mounted in the enclosure, including a suspension and a center panel encircled by and adhered to the suspension, wherein the at least one transducer is combined with the at least one passive radiator, and functions as at least a part of the center panel. According to the speaker of the present disclosure, by fully or partly replacing the center panel of the at least one passive radiator by one or more transducer(s), both the internal space and the cost of the speaker are saved without sacrificing the sound quality.