Temperature Chamber Control Using Device Temperature Feedback

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Solution Overview

Problem

Existing temperature control methods for electronic devices in constant temperature and humidity testing machines often result in inaccuracies due to discrepancies between the internal temperature of the machine and the actual temperature of the device being tested.

Innovation Solution

A temperature control method and system that dynamically adjusts the internal temperature of a temperature control device based on a base parameter and a compensation parameter, using a temperature sensor to monitor the target device and adjust the compensation parameter accordingly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the internal temperature of the temperature control device is controlled based solely on the base parameter, then the control system is simple, but the temperature control precision is insufficient due to the temperature difference between the machine interior and the target device

Engineering Contradiction:
Improvetemperature control precisionVSAvoidcontrol system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent implements a feedback mechanism by detecting the actual temperature of the target device via a temperature sensor and using this information to adjust the compensation parameter. The controller continuously monitors the target device temperature and modifies the compensation parameter accordingly, creating a closed-loop control system that improves temperature control precision while managing system complexity through automated feedback processing

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent introduces a compensation parameter that is adjusted based on the detected target device temperature to change the control strategy. By dynamically modifying the compensation parameter according to actual temperature conditions, the system achieves more precise temperature control without requiring a complete redesign of the control architecture

Inventive Principle:
Principle #35Parameter changes

2Productivity

If the compensation parameter is dynamically adjusted based on target device temperature, then the temperature control efficiency is improved, but the system complexity increases due to additional sensing and control mechanisms

Engineering Contradiction:
Improvetemperature control efficiencyVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system uses feedback from the temperature sensor to dynamically adjust the compensation parameter, enabling the controller to respond to actual temperature conditions and improve temperature control efficiency through continuous optimization

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system performs self-adjustment by automatically modifying the compensation parameter based on temperature sensor feedback without requiring external intervention, allowing the system to optimize its own performance and improve efficiency while managing complexity through autonomous operation

Inventive Principle:
Principle #25Self-service

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 approach significantly improves the temperature control efficiency of the target device, enhancing the accuracy of stability tests by ensuring the target device's temperature converges more rapidly to the desired set point.

Implementation Method 1

detecting a temperature of the target device via a temperature sensor

Methodology Applied
Scientific EffectThermal energy detection: Thermal Radiation

Data Source

PatentUS20250123641A1Temperature control method and temperature control system
Publication Date: 2025.04.17 HEFEI CORE STORAGE ELECTRONICS LTD
  • US20250123641A1 patent drawing
  • US20250123641A1 patent drawing
  • US20250123641A1 patent drawing

AI summary

A temperature control method and a temperature control system for controlling a temperature of a target device are disclosed. The target device is disposed in a temperature control device. The method includes: controlling an internal temperature of the temperature control device according to a base parameter and a compensation parameter; detecting a temperature of the target device via a temperature sensor during the period that the internal temperature of the temperature control device is controlled according to the base parameter and the compensation parameter; and adjusting the compensation parameter according to the temperature of the target device to change the internal temperature of the temperature control device.