Speaker Box Split Frame Design for Impact Resistance
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Solution Overview
Problem
Speakers in electronic audio products are vulnerable to impact and prone to breaking due to inadequate structural integrity in the speaker box.
Innovation Solution
A speaker box design featuring a split frame structure with a first vibration system and magnetic circuit system, where the frame is connected via welding and includes a diaphragm, elastic diaphragm assembly, and a second vibration system with a counterweight, providing enhanced impact resistance and sealing performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the speaker is fixed in a simple housing structure, then the ease of manufacture is improved, but the strength and impact resistance deteriorate
Solution Approach 1:
The frame is divided into a first frame and a second frame that are connected together. The first frame supports the vibration system while the second frame is fixed to the housing sidewall, creating a segmented structure that distributes impact forces and enhances overall strength without complicating the manufacturing process.
2Strength
If the frame is made as a single integrated body, then the strength is improved, but the ease of manufacture and assembly deteriorate
Solution Approach 1:
The frame is segmented into two separate frames that can be manufactured independently and then assembled together. This segmentation maintains structural strength through the connection between frames while enabling easier manufacturing and assembly compared to a single integrated body.
Solution Approach 2:
The first frame and second frame are merged through connection to form a unified support structure. The first frame supports the vibration system and the second frame provides housing attachment, and their combination achieves the structural rigidity of an integrated body while retaining manufacturing advantages.
3Reliability
If the speaker is secured with multiple connection points, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The frame is segmented into two frames with multiple connection points distributed between them. The first frame connects to the vibration system and the second frame connects to the housing, creating multiple secure attachment points that enhance reliability and sealing performance without requiring a overly complex single-structure design.
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 design enhances the speaker's structural rigidity and impact resistance, ensuring reliable operation and improved sealing performance, thus preventing damage from falls and drops.
Implementation Method 1
an elastic member and a second coil fixed to the counterweight... an end of the elastic member is connected to the counterweight while the other end is connected to the housing
Implementation Method 2
the first connecting part and the second frame are connected by welding
Data Source
AI summary
Provided is a speaker box, including a speaker, comprises a frame, a first vibration system and a magnetic circuit system fixed on the frame; the first vibration system providing a diaphragm vibrate along a first direction; a housing with an accommodation space, includes: a bottom wall facing the diaphragm, and a sidewall bending and extending from an outer edge of the bottom wall; wherein the speaker received in the accommodation space, and the frame of the speaker comprises a split body of a first frame and a second frame, the second frame extends and fixed to the sidewall.