AC Adapter Cable Management Arm Design
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Solution Overview
Problem
Existing AC adapters stress cables through winding or tying, which can lead to breakage, and expose them to heat, causing damage.
Innovation Solution
An AC adapter with elastically engaging arms that secure the cable, reducing stress and heat exposure, while also elevating the adapter to form an angle for improved air cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cable is wound or tied around the AC adapter housing for cable management, then the cable is secured in place, but the cable is stressed at the joint with the housing which may cause breakage
Solution Approach 1:
An arm extends from the AC adapter housing to engage the cable, serving as an intermediary between the housing and cable. This arm provides a dedicated cable retention mechanism that avoids direct stress concentration at the housing-cable joint, thereby maintaining cable integrity while achieving secure cable management
Solution Approach 2:
The cable management function is segmented from the main housing structure into a separate, dedicated arm component. This segmentation allows the arm to specifically handle cable engagement and retention without transmitting stress to the housing-cable joint, resolving the contradiction between secure cable management and cable integrity
2Ease of operation
If the cable is wound or tied around the AC adapter housing, then the cable is secured, but the cable is exposed to heat dissipated by the housing which may damage the cable
Solution Approach 1:
The arm acts as a thermal intermediary, positioning the cable away from the heat-generating housing while maintaining mechanical engagement. This intermediary structure creates thermal separation that reduces heat exposure to the cable during operation
Solution Approach 2:
The cable is positioned in a different spatial dimension relative to the housing by extending it along the arm, which protrudes from the housing surface. This dimensional separation increases the distance between the cable and heat dissipation surfaces of the housing, reducing thermal exposure
3Stability of the object's composition
If the AC adapter is placed flat on a surface, then it is stable, but air cooling is reduced which decreases heat dissipation efficiency
Solution Approach 1:
The AC adapter is designed with an arm that can be positioned in different configurations, allowing the adapter to transition between flat stable placement and elevated angled placement. This dynamic positioning enables optimization between stability and heat dissipation efficiency based on operational conditions
Solution Approach 2:
By extending the arm and positioning the AC adapter at an angle rather than flat on the surface, the adapter utilizes vertical space to improve airflow underneath. This dimensional change enhances convective cooling while maintaining operational stability through the extended arm structure
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 solution reduces cable stress and heat exposure, preventing damage and enhancing air cooling for efficient heat dissipation.
Implementation Method 1
an arm extending from the adapter head to elastically engage the cable against the adapter head
Implementation Method 2
elevating the adapter to an elevated position forming an angle with a surface on which it is disposed to allow for increased air cooling of the adapter
Data Source
AI summary
Examples disclosed herein relate to an alternating current (AC) adapter. In one example, an AC adapter includes an adapter head with an arm extending from a first side of a surface of the adapter head towards a centerline of the first surface of the adapter head to secure a cable to the first surface of the adapter head. A housing body is coupled to the adapter head. The arm is deformable to be biased towards a first position to secure the cable between the arm and the first surface of the adapter head and flexed to a second position to allow an operator to insert the cable between the arm and the first surface of the adapter head.