Flexible Thermal Member for Image Sensor Stabilization
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Solution Overview
Problem
Conventional image pickup apparatuses face challenges in effectively radiating heat from image sensors and circuit boards while maintaining the functionality of image stabilizing mechanisms, as rigid heat radiation members introduce reaction forces that hinder displacement and affect image quality.
Innovation Solution
Employing a thermally conductive member with a curved shape, such as a graphite sheet, that is attached to both the heat generator and a heat radiating member, allowing for flexible heat dissipation without imposing a load on the image stabilizing mechanism, thereby maintaining displacement functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a heat radiating member with high rigidity is attached for heat radiation, then heat radiating performance is improved, but a reaction force is generated when the image sensor is displaced and places a load on the image stabilizing mechanism
Solution Approach 1:
The patent employs a flexible heat radiating sheet instead of a rigid heat radiating member. This flexible sheet can deform to accommodate the displacement of the image sensor without generating reaction forces that would load the image stabilizing mechanism, while still maintaining effective thermal contact for heat radiation.
Solution Approach 2:
The patent changes the rigidity parameter of the heat radiating member by using a flexible material with appropriate thermal conductivity. This allows the heat radiating component to transition from a rigid state (which generates reaction forces) to a flexible state (which accommodates displacement without loading the stabilizing mechanism).
2Force
If a ring-shaped heat radiation sheet is used to avoid loading the image stabilizing mechanism, then the image stabilizing mechanism operates without additional load, but the contact surface area changes due to displacement and gravity which may reduce heat radiating effect
Solution Approach 1:
The patent uses a flexible heat radiating sheet that can dynamically adjust its shape and contact area in response to the displacement of the image sensor and gravitational forces. This dynamic adaptability ensures continuous effective thermal contact without imposing rigid constraints on the stabilizing mechanism.
Solution Approach 2:
The flexible heat radiating sheet can deform in multiple dimensions to maintain optimal contact with the heat generating components during image sensor displacement. This multi-dimensional flexibility compensates for changes in contact surface area that would occur with a rigid or simple ring-shaped 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 ensures effective heat radiation from displaceable heat generators like image sensors and EVF panels, ensuring stable operation of the image stabilizing mechanism by preventing additional loads and maintaining contact despite displacement.
Implementation Method 1
a thermally conductive member disposed between the heat generator and the heat radiating member
Data Source
AI summary
An electronic apparatus includes a heat generator, a heat radiating member configured to radiate heat from the heat generator, and a thermally conductive member disposed between the heat generator and the heat radiating member. The thermally conductive member has a first area, a second area, and a third area having a curved shape and disposed between the first area and the second area. The first area and the second area of the thermally conductive member are attached to one of the heat generator and the heat radiating member.