Speaker Box Insert Plate Glue Injection Vibration Damping
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Solution Overview
Problem
Existing speaker boxes face challenges with excessive overall height due to glue usage, leading to increased volume and inadequate anti-shell vibration performance.
Innovation Solution
A speaker box design featuring an upper and lower cover with integrated steel sheets, an insert plate dividing the rear cavity into two sections, and a fixing groove for glue injection, which reduces the impact of glue on height and enhances anti-vibration by forming a buffer after solidification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If glue is used to fix the insert plate between the upper cover and lower cover, then the anti-shell vibration effect is improved, but the overall height of the insert plate becomes excessively high, increasing the overall volume of the speaker box
Solution Approach 1:
The patent transitions from surface-level glue application to a through-hole injection approach, utilizing the vertical dimension (depth) of the fixing groove to contain the adhesive. This allows the glue to be injected through the insert plate into the groove, providing vibration damping without adding excessive height to the overall assembly.
Solution Approach 2:
The fixing groove acts as an intermediary structure between the insert plate and the upper/lower covers. It provides a dedicated space for glue injection that mediates between the need for strong bonding/anti-vibration performance and the constraint of limited vertical space, allowing controlled adhesive placement.
2Manufacturing precision
If glue is injected without a fixing groove, then the mounting process is simpler, but the glue cannot be precisely controlled, leading to excessive height and poor sealing
Solution Approach 1:
The fixing groove is pre-formed in the upper cover or lower cover before assembly. This preliminary action creates a predetermined receptacle for the glue, ensuring precise control over where the adhesive is placed and how much is used, while the groove's integration into the existing structure minimizes additional manufacturing steps.
Solution Approach 2:
The fixing groove structure serves multiple functions simultaneously: it guides the glue injection, contains the adhesive to prevent overflow, provides bonding surface area, and creates a cushioning effect. This self-service design achieves precise glue control without requiring complex external control mechanisms.
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 simplifies the mounting process, reduces the overall volume, and effectively prevents shell vibration through the use of glue injection into the fixing groove, providing improved sealing and structural integrity.
Implementation Method 1
the lower cover undergoes ultrasonic to realize soft contact of a steel sheet of the lower cover with the insert plate
Implementation Method 2
the glue has elasticity after solidification, forming a buffer at a junction between the insert plate and the steel sheet, thereby effectively preventing the problem of shell vibration
Data Source
AI summary
Provided is a speaker box, including: an upper cover, an upper steel sheet; a lower cover, a lower steel sheet; a receiving space, an acoustic unit; and an insert plate arranged in the rear cavity. Upper and lower sides of the insert plate abut against the upper steel sheet and the lower steel sheet, respectively, a position of at least one of the upper steel sheet or the lower steel sheet aligned with the insert plate is provided with a fixing groove passing therethrough, and the insert plate is fixed to at least one of the upper steel sheet or the lower steel sheet through glue injection in the fixing groove. The speaker has characteristics of convenient mounting, good anti-shell vibration effect, and reduced mounting space.