Laminated Flow Path Member for Liquid Discharging Head
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Solution Overview
Problem
Existing liquid discharging apparatuses, such as ink jet printers, face challenges in reducing the overall thickness of flow path members without compromising their structural integrity or functionality.
Innovation Solution
A liquid discharging head unit with a flow path member composed of laminated layers, where the second layer is thinner than the first and third layers, allowing for reduced thickness without adverse effects, and incorporating filter chambers within the third layer to maintain functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the thickness of each layer in the flow path member is reduced to decrease the overall thickness, then the overall thickness is reduced, but the structural integrity and functionality may be compromised
Solution Approach 1:
The patent applies local quality by making the second layer thinner than the first and third layers. This localized thinning reduces the overall thickness while maintaining adequate thickness in critical layers (first and third) to preserve structural integrity and functionality. The differential thickness distribution optimizes the balance between compactness and strength.
Solution Approach 2:
The flow path member is segmented into multiple layers with different thicknesses tailored to their specific functional requirements. The first layer maintains sufficient thickness for structural support, the second layer is thinned for overall compactness, and the third layer retains adequate thickness for its functional purposes. This segmentation allows each layer to be optimized independently.
2Length of stationary object
If the thickness of the flow path member is reduced, then the overall size is decreased, but the filter chamber functionality may be adversely affected
Solution Approach 1:
The third layer containing the filter chamber is maintained at a greater thickness than the second layer to ensure adequate space for filter structures and maintain filtering functionality. This localized quality differentiation ensures that the filter chamber operates reliably while the overall assembly remains compact due to the thinner second layer.
3Adaptability or versatility
If the second layer is made thinner to reduce overall thickness, then the design flexibility is enhanced, but the structural stability may be compromised
Solution Approach 1:
The second layer is locally thinned to enhance design flexibility and reduce overall thickness, while the first and third layers maintain sufficient thickness to provide structural stability. This differentiated thickness distribution allows the structure to be more adaptable in form factor while remaining stable through the supporting outer layers.
Data Source
AI summary
A first flow path is provided between the first layer and the second layer, a second flow path is provided between the second layer and the third layer, a filter chamber is provided inside the third layer, and the second layer is thinner than each of the first layer and the third layer.