Two-Shot Molded Headset Button Controller Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional button arrangements on accessories such as headsets offer limited functionality for controlling electronic devices remotely, particularly in handling both stereo audio and microphone signals.
Innovation Solution
A button controller assembly with a housing formed from two-shot molded plastic parts, featuring elastomeric members and dome switches, which allows for flexible button actuation and integrated circuitry to detect user input, enabling enhanced control signals to be transmitted to electronic devices through existing audio connector lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional button arrangements are used on headsets, then the device structure remains simple, but the control functionality is limited
Solution Approach 1:
The button controller assembly is designed to perform multiple functions including answer/end call, track navigation, and volume control through a single integrated unit. The assembly includes multiple dome switches that can be activated by pressing different regions of the housing, enabling diverse control operations without requiring separate devices or complex wiring.
Solution Approach 2:
The patent combines the button controller assembly with the headset housing structure itself. The housing portions are designed to flex and activate dome switches when pressed, merging the structural housing with the control mechanism. This integration eliminates the need for separate button components and reduces overall device complexity while enhancing functionality.
2Ease of operation
If the housing portions are rigidly connected, then structural stability is improved, but button actuation flexibility is reduced
Solution Approach 1:
The housing portions are designed with dynamic characteristics, allowing them to flex relative to each other when buttons are pressed. The engagement structures (snaps and rails) provide guided movement rather than rigid connection, enabling the housing to deform elastically during button actuation while maintaining structural integrity. This dynamic design allows controlled flexibility for operation while preserving overall stability.
Solution Approach 2:
The housing is divided into multiple portions that can move independently relative to each other. The first and second housing portions are connected through engagement structures that allow relative movement, enabling each portion to flex and activate specific dome switches. This segmentation allows localized deformation for button actuation while the overall structure remains stable through the engagement features.
3Ease of operation
If floating engagement structures are used, then button actuation flexibility is improved, but manufacturing precision requirements increase
Solution Approach 1:
The engagement structures are designed with specific dimensional parameters that define the floating relationship between housing portions. The snaps and rails are dimensioned to provide appropriate clearance for movement while maintaining alignment. By carefully controlling these geometric parameters during molding, the design achieves both operational flexibility and manufacturability through the two-shot molding process.
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 improved remote control functionality of electronic devices by allowing users to perform actions like answering calls or managing media playback without needing to physically interact with the device, utilizing existing audio connector lines for signal transmission.
Implementation Method 1
Elastomeric members within the button controller assembly may be used to help bias the housing portions apart
Implementation Method 2
Button functionality may be provided by dome switches mounted within the button controller assembly... the circuitry may be used to detect button actuation events when a user squeezes various portions of the housing together
Implementation Method 3
The housing portions may be formed using a two-shot molding process so that each housing portion may include two different types of plastic
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Accessories such as headsets for electronic devices are provided. A headset may be provided with a button controller assembly that has user-actuated buttons. The button controller assembly may be formed of housing portions that float with respect to each other. Plastic engagement structures may limit the amount of unimpeded travel that is exhibited by the housing portions. The housing portions may be formed from first and second housings. A rigid frame may be mounted within the second housing. The first housing may flex along its length when the user squeezes the first and second housings together to actuate a desired button. Housings may be formed as double-shot plastic parts having first and second plastics with different properties. Integrated circuits and a microphone may be mounted within the button controller assembly. A nonoperational microphone port may be provided as a visual indicator that the button controller contains a microphone.