Folding Device Heat Dissipation via Rotating Shaft Bridge
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Solution Overview
Problem
Conventional folding devices, such as notebook computers and two-in-one notebooks, face poor heat dissipation due to a limited heat dissipation region and small heat dissipation area, leading to ineffective thermal management.
Innovation Solution
A heat dissipation apparatus that utilizes a heat collection element to transfer heat from a heat source in one folding part to a rotating shaft, which then transfers the heat to a cooling element, ultimately dissipating it to a heat dissipation device in another folding part, expanding the heat dissipation region and increasing the heat dissipation area without interfering with the engagement or separation of the folding parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If heat dissipation is performed only using the folding part where the heat generation device is located, then the structure is simple, but the heat dissipation area is limited and heat dissipation effect is poor
Solution Approach 1:
The heat dissipation system is segmented into multiple independent components: a heat collection element in the first folding part, a rotating shaft serving as a heat transmission bridge, and a heat dissipation device in the second folding part. This segmentation allows heat to be collected, transmitted, and dissipated across different spatial locations, expanding the effective heat dissipation area beyond the heat generation location.
Solution Approach 2:
The rotating shaft acts as an intermediary heat transmission component between the heat collection element and the heat dissipation device. It bridges the thermal connection across the hinge joint, enabling heat to be transmitted from the first folding part to the second folding part where dissipation occurs, thus overcoming the limitation of localized heat dissipation.
2Temperature
If a heat transmission bridge is added across the hinge joint, then the heat dissipation area is expanded, but the device complexity increases
Solution Approach 1:
The rotating shaft serves multiple functions simultaneously: it is both the mechanical hinge joint enabling folding motion and the thermal conduction path for heat transmission. By making the hinge joint itself the heat transmission bridge, the patent avoids adding separate dedicated heat transmission components, thus expanding heat dissipation capability without proportionally increasing structural complexity.
Solution Approach 2:
The heat transmission function is merged with the mechanical hinge joint structure. The rotating shaft that already exists for mechanical purposes is also utilized as the thermal conduction path, combining two functions into a single component and reducing overall system complexity while achieving expanded heat dissipation.
3Temperature
If the rotating shaft transmits heat across the hinge, then heat dissipation region is expanded, but the engagement and separation of folding parts may be interfered with
Solution Approach 1:
The thermal contact between the rotating shaft and the heat collection element is designed to be localized at specific contact surfaces rather than requiring full-surface engagement. This localized thermal contact allows the hinge joint to maintain its mechanical folding function while establishing sufficient thermal conduction path through targeted contact areas.
Solution Approach 2:
The heat transmission system is designed to be dynamic rather than static, allowing the rotating shaft to maintain thermal contact with the heat collection element during both folded and unfolded states. The system adapts to different positions of the folding parts, ensuring continuous heat transmission without interfering with the dynamic engagement and separation motions.
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
This solution enhances the heat dissipation effect by expanding the heat dissipation region and increasing the heat dissipation area, ensuring effective thermal management and maintaining the operational stability of the folding device.
Implementation Method 1
a heat collection element 310, a rotating shaft 320, and a cooling element 330... the heat collection plate 311 transfers the heat collected from the heat source to the first shaft sleeve 312... the first shaft sleeve 312 then transfers the heat to the rotating shaft 320
Implementation Method 2
the cooling element 330 transfers the heat to the heat dissipation device in the second folding part 200, and the heat dissipation device in the second folding part 200 dissipates the heat to air
Data Source
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AI summary
This application discloses a folding device and a heat dissipation apparatus, and pertains to the field of electronic devices. The folding device includes a heat collection element (310), including a heat collection plate (311) and a first shaft sleeve (312); a first end (3111) of the heat collection plate (311) is in contact with a heat source in a first folding part (100), and a second end (3112) of the heat collection plate (311) is connected to an outer wall of the first shaft sleeve (312); the first shaft sleeve (312) is sleeved on a rotating shaft (320); and a first end (331) of the cooling element (330) is in contact with the rotating shaft (320), and a second end (332) of the cooling element (330) is in contact with a heat dissipation device in a second folding part (200). In this application, heat generated by the heat source in the first folding part (100) may be transferred to the heat dissipation device in the second folding part (200). In this way, a heat dissipation region of the heat source is expanded, and a heat dissipation area is increased. Therefore, a heat dissipation effect is improved.