Hinge-Mounted Multimedia Assembly for Folded-State Sound Emission
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Solution Overview
Problem
Existing electronic devices, such as portable computers, face issues with sound emission direction being obstructed when the screen is turned off, leading to ineffective sound release.
Innovation Solution
A hinge module with a multimedia assembly that includes a main shaft member, transmission assembly, and multimedia assembly, where the rotation direction of the multimedia assembly is opposite to the main shaft member, allowing the multimedia element to face outward in the folded state and inward in the unfolded state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the speaker unit is arranged on the screen or keyboard base with fixed sound emission direction, then the structure is simple, but the sound emission direction is covered when the screen is turned off, leading to ineffective sound release
Solution Approach 1:
The speaker unit is made dynamically adjustable through the hinge module, allowing it to rotate between different orientations (facing forward when screen is on, facing outward when screen is folded). This dynamic repositioning resolves the contradiction by enabling effective sound emission in both device states without requiring multiple fixed speaker units.
Solution Approach 2:
The hinge module serves multiple functions: it connects the screen to the keyboard base, enables screen rotation, and simultaneously controls the speaker unit's orientation. This multi-functionality allows a single structural addition to solve the sound emission problem across different device configurations without proportionally increasing complexity.
2Ease of operation
If the speaker unit faces the user when the screen is on, then the user can hear audio clearly, but when the screen is turned off and folded, the sound emission direction becomes covered between the screen and keyboard base
Solution Approach 1:
The speaker unit dynamically changes its facing direction based on the device's folding state. When the screen is unfolded, the speaker faces the user for clear audio. When the screen is folded, the speaker rotates to face outward, maintaining audio accessibility in both device states and resolving the adaptability issue.
Solution Approach 2:
Instead of keeping the speaker unit fixed in one orientation, the invention inverts the approach by making the speaker unit rotate in the opposite direction of the screen folding. When the screen folds closed, the speaker unit rotates to face outward rather than remaining covered, thus maintaining audio emission effectiveness across different device states.
3Ease of operation
If a fixed speaker unit is used without rotation mechanism, then the manufacturing cost is low, but the sound source cannot be effectively released in folded state
Solution Approach 1:
The speaker unit rotation mechanism is merged with the existing hinge module that connects the screen to the keyboard base. By integrating the speaker rotation function into the hinge assembly, the invention avoids adding a separate, complex rotation mechanism, thus maintaining ease of manufacture while achieving effective sound release in both folded and unfolded states.
Solution Approach 2:
The hinge module is designed to perform multiple functions: structural support, screen rotation, and speaker unit orientation control. This multi-functionality allows the same mechanical structure to achieve both device folding capability and speaker positioning, reducing overall assembly complexity while maintaining sound release effectiveness.
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
Ensures effective sound emission and user accessibility by directing sound emission holes towards the user in the unfolded state and away from the device in the folded state, enhancing the listening experience.
Implementation Method 1
The first transmission member and the third transmission member respectively protrude toward the second transmission member and are engaged with the second transmission member. The first transmission member, the second transmission member, and the third transmission member are bevel gears.
Data Source
AI summary
An electronic device and a hinge module with a multimedia assembly thereof are provided. The electronic device includes a first body, a second body, and a hinge module. The hinge module is located on one side of the first body. The hinge module includes a main shaft member, a transmission assembly, and a multimedia assembly. The main shaft member is pivotally connected to the first body and the second body. The transmission assembly is rotatably connected to the main shaft member. The multimedia assembly is connected to the transmission assembly. The multimedia assembly is used to rotate relative to the first body and the second body through the main shaft member. A rotation direction of the multimedia assembly is opposite to a rotation direction of the main shaft member.