Liquid Discharge Device Heat Shield for Temperature Control
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Solution Overview
Problem
The challenge is to maintain accurate temperature control of a liquid material during discharge operations across varying temperature environments, as existing technologies face difficulties in preventing excessive heating and ensuring consistent discharge amounts when working in environments with significant temperature differences.
Innovation Solution
A liquid material discharge device equipped with a heat shield member and a heat-exchange fluid delivery system, which includes a heat shield member to block radiant heat and a coolant flow path for temperature control, allowing for precise temperature adjustment of the liquid material within a narrow range, even in environments with extreme temperature variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the stage is heated to high temperature for underfill application, then the resin viscosity is reduced and filling is facilitated, but the temperature control device is excessively heated by radiant heat and temperature control becomes difficult
Solution Approach 1:
A heat shield member is introduced as an intermediary component between the stage and the temperature control device. This heat shield blocks radiant heat from directly reaching the temperature control device, allowing the stage to be heated to high temperature for resin application while preventing excessive heating of the temperature control device, thus maintaining temperature control accuracy
Solution Approach 2:
The heat shield member extracts or separates the temperature control device from the high-temperature zone created by the heated stage. By positioning the heat shield between the stage and the temperature control device, the system effectively removes the temperature control device from the harmful radiant heat environment while maintaining the necessary heating conditions for resin application
2Manufacturing precision
If application work is performed in different temperature environments, then the discharge amount varies due to temperature differences, but maintaining consistent temperature control across environments increases device complexity
Solution Approach 1:
The heat shield member is a simple, passive component that provides effective temperature isolation without requiring complex active control systems. This disposable-like simple component solves the temperature control problem across different environments without adding significant device complexity, maintaining discharge amount consistency through a straightforward structural addition rather than complex control mechanisms
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 solution enables consistent discharge amounts across different temperature environments, prevents excessive heating of the temperature control device, and maintains the liquid material's temperature within a desired range, thereby extending the pot life of materials like insulating resins.
Implementation Method 1
a heat shield member 42 to block radiant heat
Implementation Method 2
a coolant flow path 43 for heat exchange with the temperature control device 40
Data Source
Figure 1(a)~1(b)
Figure 2
Figure 3
AI summary
[Problem] To provide a device and a method with which application work can be carried out without causing variations in discharge amount even on a stage under heating while temperature of a liquid material is adjusted by a temperature control device. [Solution] A liquid material discharge device comprising a discharge port, a liquid chamber in communication with the discharge port, and a temperature control device adjusting a temperature of the liquid chamber, the liquid material discharge device discharging the liquid material from the discharge port while a workpiece and the discharge port are moved relative to each other, wherein the liquid material discharge device includes a coolant flow path through which a coolant for heat exchange with the temperature control device flows, and a discharge control device controlling a discharge operation. An application device including the liquid material discharge device and an application method using the application device are also provided.