Vehicle Speaker Connector Positioning via Rotatable Coupling
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Solution Overview
Problem
Vehicle speakers often malfunction or break due to water ingress through the connector, which can be exacerbated by interference with the door trim, and changing the connector location requires altering the mounting hole or guide pin, increasing costs and assembly complexity.
Innovation Solution
A speaker design featuring a base plate with a first coupling portion and a speaker module with a second coupling portion, allowing the connector to change location without altering the mounting hole or guide pin, using interlocking patterns and rib structures to secure the speaker module, and a wire winding device to adjust wire length, enabling movement along a track to prevent water ingress and trim interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the connector location is changed to prevent water ingress and trim interference, then reliability and ease of operation are improved, but the mounting hole location must be changed, increasing manufacturing cost and device complexity
Solution Approach 1:
The speaker system is divided into separate functional modules: the base plate with mounting holes remains fixed in the door panel, while the speaker module with the connector can be independently positioned and rotated. This segmentation allows the connector to be relocated without changing the mounting hole positions, preventing water ingress and trim interference while avoiding additional manufacturing costs for new mounting holes.
Solution Approach 2:
The connector position is made adjustable and rotatable relative to the base plate through the coupling portion design. The speaker module can be rotated to different angular positions (e.g., 0°, 45°, 90°, 135°) while maintaining secure attachment, enabling dynamic repositioning of the connector to optimal locations that avoid water paths and trim interference without requiring new mounting holes.
2Ease of operation
If the connector location is changed to avoid trim interference, then ease of operation is improved, but the mounting hole location must be changed, increasing device complexity
Solution Approach 1:
The system separates the mounting function (base plate with fixed mounting holes) from the connector function (speaker module with movable connector). This allows the connector to be independently repositioned by rotating the speaker module on the base plate, providing easy accessibility to avoid trim interference without complicating the mounting structure, as the same base plate serves all vehicle models.
Solution Approach 2:
The base plate with its coupling portion design serves multiple functions: it provides secure mounting through fixed holes, enables rotational adjustment of the speaker module, and maintains compatibility across different vehicle door panel designs. This universal design allows the same base plate to accommodate various connector positions without requiring vehicle-specific modifications.
3Reliability
If water ingress prevention measures are implemented by changing connector location, then reliability is improved, but additional costs are incurred for modifying mounting holes
Solution Approach 1:
The speaker module can be rotated to different angular positions on the base plate, allowing the connector to be dynamically repositioned to locations that avoid water ingress paths identified in specific vehicle models. This rotational capability provides water resistance without requiring new mounting holes or additional manufacturing costs, as the existing mounting structure remains unchanged.
Solution Approach 2:
The angular position parameter of the speaker module on the base plate can be changed to optimize connector location for water resistance. By adjusting this parameter (rotating the module to specific angles), the connector can be positioned away from water entry paths without modifying the mounting hole locations or incurring additional manufacturing costs.
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
Enables the speaker to change connector location without altering the mounting hole or guide pin, reducing water ingress and trim interference, thus enhancing reliability and assembly ease while maintaining compatibility across various vehicle door panels.
Implementation Method 1
a first coupling portion with a predetermined pattern formed along a circumferential direction of an inner surface of the first coupling portion; and a speaker module including a second coupling portion with a predetermined pattern formed along a circumferential direction of an outer surface of the second coupling portion. In particular, the second coupling portion is configured to be interlocked with the first coupling portion
Data Source
AI summary
A speaker for a vehicle includes: a base plate which is installed in a door of the vehicle and includes a first coupling portion; and a speaker module including a second coupling portion. In particular, the first coupling portion has a predetermined pattern formed along a circumferential direction of the inner surface of the first coupling portion, and the second coupling portion includes a predetermined pattern formed along a circumferential direction of the outer surface of the second coupling portion such that the second coupling portion is interlocked with the first coupling portion, and a connector.