Liquid Ejection Device Partition Plate Thermal Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing liquid ejection devices face reduced control responsiveness due to a large distance between the ejection head and the control substrate, which can lead to heat transfer and subsequent temperature rises in the ejection head, affecting landing accuracy.
Innovation Solution
The liquid ejection device partitions its internal space using a shaped partition plate to connect the control substrate directly to the ejection head via a substrate-to-substrate connector, while using a non-metallic or resinous partition plate and fans to manage airflow, thereby reducing heat transfer and improving control responsiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the distance between the ejection head and the control substrate is reduced to improve control responsiveness, then control responsiveness is improved, but heat transfer from the control substrate to the ejection head increases causing temperature rise and deteriorating landing accuracy
Solution Approach 1:
The internal space of the carriage is partitioned into a first space housing the ejection head and a second space housing the control substrate, using a partition plate. This spatial segmentation allows the components to be positioned close together for improved control responsiveness while preventing direct heat transfer from the control substrate to the ejection head, thus resolving the contradiction between responsiveness and temperature control.
2Speed
If the distance between the ejection head and the control substrate is reduced to improve control responsiveness, then control responsiveness is improved, but landing accuracy deteriorates due to heat-induced temperature rise
Solution Approach 1:
The carriage internal space is divided into separate first and second spaces using a partition plate, allowing close positioning of the ejection head and control substrate for improved responsiveness while preventing heat transfer that would compromise landing accuracy.
Solution Approach 2:
A partition plate is introduced as an intermediary structure between the ejection head and control substrate. This partition plate serves as a thermal barrier that prevents heat transfer from the control substrate to the ejection head, thereby maintaining landing accuracy while allowing the components to be positioned close together for improved control responsiveness.
3Temperature
If a partition plate is used to separate the ejection head and control substrate to prevent heat transfer, then temperature control is improved, but the internal space utilization and connection efficiency are reduced
Solution Approach 1:
The carriage internal space is divided into first and second spaces using a partition plate that houses substrate-to-substrate connectors. This segmentation approach efficiently manages thermal separation while optimizing space utilization and connection efficiency between the ejection head and control substrate.
Solution Approach 2:
The partition plate serves multiple functions: it acts as a thermal barrier to prevent heat transfer, provides structural support for mounting the substrate-to-substrate connectors, and optimizes the internal space configuration of the carriage. This multi-functionality resolves the contradiction between temperature control and device complexity.
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 control responsiveness and suppresses temperature rises in the ejection head, maintaining landing accuracy while allowing for efficient heat management and easy maintenance.
Implementation Method 1
the partition plate, as viewed from a direction in which the control substrate is connected to the ejection head, is shaped such that at least any one region of a region where the control substrate is located, a region where the substrate-to-substrate connector is located, and a region where the ejection head is located, is cut out
Data Source
AI summary
The liquid ejection device 1 includes a carriage 100 whose internal space S is partitioned into a first space S1 and a second space S2 by a partition plate 106, an ejection head 101 that is provided in the first space S1 and that ejects a liquid, and a control substrate 102 that is provided in the second space S2 and that controls a drive of the ejection head 101, wherein the control substrate 102 is connected to the ejection head 101 via a substrate-to-substrate connector 103, and the partition plate 106, as viewed from a direction D in which the control substrate 102 is connected to the ejection head 101, is shaped such that at least one region of region where the control substrate 102 is located, the region where the substrate-to-substrate connector 103 is located, and the region where the ejection head 101 is located, is cut out.