Liquid Discharging Head Damper Heater Pattern Orientation
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Solution Overview
Problem
The existing liquid discharging heads with patterned heat conductors in the damper are rigid, limiting their flexibility and ability to absorb pressure fluctuations in the common liquid chamber, necessitating a more suitable arrangement of the patterned heat conductor to reduce rigidity.
Innovation Solution
A liquid discharging head design featuring a damper with a heater pattern that extends in the same direction as the individual flow paths without inclining at 45 degrees or larger, connected to a heat source through a linking pattern, allowing for even heating and deformation absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a patterned heat conductor is provided in the damper, then heating function is improved, but rigidity increases and flexibility deteriorates
Solution Approach 1:
The heater pattern is designed with different line widths in different regions: wider lines in non-damper regions and narrower lines in damper regions. This local variation in pattern density allows the damper area to remain more flexible while still providing adequate heating coverage across the entire common liquid chamber.
Solution Approach 2:
The invention changes the physical parameter of the heater pattern by controlling the line width according to the positional information. The line width is specifically reduced in the damper region compared to non-damper regions, which modifies the thermal distribution pattern and mechanical properties locally to resolve the contradiction between heating effectiveness and flexibility.
2Temperature
If a patterned heat conductor is provided in the damper, then heating function is improved, but ability to absorb pressure fluctuation deteriorates
Solution Approach 1:
The heater pattern is designed with different line widths in different regions: wider lines in non-damper regions and narrower lines in damper regions. This local variation in pattern density allows the damper area to remain more flexible while still providing adequate heating coverage across the entire common liquid chamber.
Solution Approach 2:
The invention changes the physical parameter of the heater pattern by controlling the line width according to the positional information. The line width is specifically reduced in the damper region compared to non-damper regions, which modifies the thermal distribution pattern and mechanical properties locally to resolve the contradiction between heating effectiveness and flexibility.
3Ease of operation
If the heater pattern is arranged coarsely, then rigidity is reduced, but heating uniformity deteriorates
Solution Approach 1:
The heater pattern is designed with different line widths in different regions: wider lines in non-damper regions and narrower lines in damper regions. This local variation in pattern density allows the damper area to remain more flexible while still providing adequate heating coverage across the entire common liquid chamber.
Solution Approach 2:
The invention changes the physical parameter of the heater pattern by controlling the line width according to the positional information. The line width is specifically reduced in the damper region compared to non-damper regions, which modifies the thermal distribution pattern and mechanical properties locally to resolve the contradiction between heating effectiveness and flexibility.
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 enhances the damper's ability to absorb pressure fluctuations while maintaining even ink heating across the individual flow paths, improving the overall performance of the liquid discharging head.
Implementation Method 1
The heater pattern is provided to the damper. The connecting pattern connects the heater pattern with the heat source
Implementation Method 2
the damper with the patterned heat conductor may be less flexible and provide a smaller effect to absorb pressure fluctuation of the ink in the common liquid chamber
Data Source
AI summary
A liquid discharging head, having a plurality of individual flow paths, a common flow path, a damper, a heater pattern, a heat source, and a connecting pattern, is provided. The individual flow paths are arrayed in a first direction. The common flow path extends in the first direction throughout the individual flow paths and is connected with the individual flow paths. The damper extends in the first direction throughout the individual flow paths. A part of the damper forms an inner face that defines an end of the common flow path in a second direction. The heater pattern is provided to the damper. The connecting pattern connects the heater pattern with the heat source. In a range, in which in the first direction the individual flow paths are arranged, the heater pattern extends in the first direction without inclining with respect to the first direction at 45 degrees or larger.