Image Sensor Heat Dissipation Structure for Blur Correction Assembly
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Solution Overview
Problem
Existing image capturing apparatuses face challenges in efficiently dissipating heat generated by image sensors and electronic components while maintaining the controllability of the image blur correction mechanism, with issues in assembly and increased control load due to the positioning and fixation of heat dissipation members.
Innovation Solution
The apparatus incorporates a heat dissipation member connected between a movable and fixed part, with integral holding plates fixed in the optical axis direction, ensuring easy assembly and effective heat dissipation without impairing the controllability of the movable part.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a heat dissipation member is connected between movable and fixed parts with fixing in a direction other than the optical axis direction, then heat dissipation is achieved, but assembly becomes difficult due to repulsion force mismatch with fixing direction
Solution Approach 1:
The patent inverts the conventional fixing approach by fixing the holding plates in the optical axis direction rather than in the direction of repulsion force. This inversion allows the heat dissipation member to be fixed easily between movable and fixed parts while maintaining effective heat dissipation performance.
2Temperature
If a heat dissipation member with small bending radius is used to connect to the reverse side of the image sensor, then heat dissipation is achieved, but control load increases affecting image blur correction
Solution Approach 1:
The patent employs a flexible heat dissipation member that can be formed with a large bending radius, reducing the control load on the image blur correction mechanism while still maintaining effective thermal connection between the image sensor and heat dissipation structure.
3Ease of manufacture
If holding plates are fixed in the optical axis direction, then assembly workability improves and deformation risk reduces, but heat dissipation path may be compromised
Solution Approach 1:
The patent segments the heat dissipation structure into a heat dissipation member and separate holding plates, allowing the holding plates to be fixed in the optical axis direction for easy assembly while the heat dissipation member maintains the thermal conduction path independently.
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 configuration allows for efficient heat dissipation from the image sensor while maintaining the controllability of the image blur correction mechanism, improving assembly workability and reducing the risk of deformation during assembly.
Implementation Method 1
a heat dissipation member that connects between the movable part and the fixed part
Data Source
AI summary
An image capturing apparatus includes a movable part that holds an image sensor and a fixed part that fixes the movable part in a state movable in a direction perpendicular to an optical axis direction. A heat dissipation member connects between the movable part and the fixed part. A movable-side holding plate is held integrally with the heat dissipation member. A fixed-side holding plate which is different from the first holding plate is held integrally with the heat dissipation member. The movable-side holding plate is fixed to the movable part, and the fixed-side holding plate is fixed to the fixed part. Fixing of the movable-side holding plate and the fixed-side holding plate is performed in the optical axis direction.