Elastic Support Actuator Layout for Compact Display Modules
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Solution Overview
Problem
Existing actuators face challenges in reducing their size due to the need for additional structural support within the actuator's installation space, particularly in the X direction, which increases the overall size and complexity.
Innovation Solution
The actuator design includes an elastic support body with a deformable portion positioned outside the X direction inside region, eliminating the need for additional structural support within this area, allowing for a more compact configuration by positioning the finish end of the deformable portion in the X direction outside regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the finish end of the deformable portion is positioned in the X direction inside region, then structural support is provided, but the actuator size increases
Solution Approach 1:
The patent repositions the finish end of the deformable portion from the X direction inside region to the X direction outside region, utilizing space in a different dimensional arrangement. This dimensional repositioning allows the deformable portion to maintain its support function while occupying less critical space within the actuator body, thereby reducing overall actuator size without compromising structural stability.
Solution Approach 2:
The patent employs an asymmetric configuration where the deformable portion extends preferentially in the X direction outside region rather than symmetrically within the inside region. This asymmetric design allows the finish end to be positioned optimally for compactness while maintaining sufficient structural support through the strategic placement of the deformable portion in the external region.
2Stability of the object's composition
If additional structural support is added within the actuator, then stability is improved, but device complexity increases
Solution Approach 1:
The deformable portion serves multiple functions: it provides structural support for the movable element, enables relative displacement between the movable element and attachment member, and maintains actuator compactness. By making the deformable portion multi-functional, additional dedicated support structures are unnecessary, thereby maintaining stability without increasing device complexity.
Solution Approach 2:
The patent merges the support function with the deformable portion itself, combining what would traditionally be separate components (support structure and deformable element) into a single integrated component. This merging eliminates the need for additional structural support elements, reducing device complexity while maintaining the required stability for movable element support.
3Reliability
If the deformable portion is extended in the X direction, then support coverage is improved, but the actuator width increases
Solution Approach 1:
Instead of extending the deformable portion horizontally within the X direction inside region (which would increase actuator width), the patent extends it into the X direction outside region. This dimensional change allows the finish end to achieve better support coverage vertically or in other dimensions without proportionally increasing the actuator's horizontal footprint, thereby maintaining compact width while improving reliability.
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 enables a reduction in actuator size while maintaining stability and support for the movable element, facilitating a more efficient use of space and improved durability through the use of a symmetrical and stable deformable portion structure.
Implementation Method 1
The elastic support body deforms so as to allow the movable element to undergo displacement in a predetermined displacement direction relative to the attachment member
Implementation Method 2
an attachment member including a coil, a movable element including a magnet and configured to undergo relative displacement in a predetermined displacement direction with respect to the attachment member
Data Source
AI summary
Provided is an actuator that lends itself to a reduction in size. An actuator S1 is provided with an elastic support body 16 including attachment member-side fixing portions 92 fixed to an attachment member 12, a movable element-side fixing portion 94 fixed to a movable element 14, and a deformable portion 80 positioned between the attachment member-side fixing portions 92 and the movable element-side fixing portion 94. Finish ends 80E of the deformable portion 80 (ends on the attachment member-side fixing portion 92 sides of the deformable portion 80) are only positioned in a region on one side in an X direction with respect to the movable element-side fixing portion 94 and a region on another side in the X direction with respect to the movable element-side fixing portion 94 (X direction outside regions).