Predictive Temperature Control for Power Supply Heat Stability

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Solution Overview

Problem

Existing temperature control systems for power supply devices face inaccuracies in temperature sensing due to large currents affecting thermistors, leading to inadequate heat dissipation and reduced service life.

Innovation Solution

A temperature control system comprising a detection module, a control module, and an adjustment module that uses a temperature prediction model to anticipate future temperatures and adjust accordingly, improving stability and energy conversion efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a thermistor is used to detect temperature in a power supply device, then the temperature can be obtained, but when large current flows through the thermistor it affects sampling precision and cannot quickly sense temperature change

Engineering Contradiction:
Improvetemperature sampling precisionVSAvoidtemperature sensing accuracy
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The patent introduces a temperature prediction model as an intermediary between the thermistor and the control system. The model predicts future temperature based on current temperature and historical data, allowing the system to compensate for the thermistor's slow response and inaccuracy under large current conditions without requiring the thermistor to perfectly sense temperature in real-time

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system performs preliminary temperature prediction before actual temperature control actions are taken. By using the prediction model to forecast future temperature trends, the system can prepare control decisions in advance, compensating for the delay and inaccuracy in thermistor sensing

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS20240111319A1Temperature control system for device and temperature control method
Publication Date: 2024.04.04 CHANGCHUN JETTY AUTOMOTIVE PARTS CORPORATION
  • US20240111319A1 patent drawing
  • US20240111319A1 patent drawing
  • US20240111319A1 patent drawing

AI summary

A temperature control system for a device and a temperature control method, the control method includes: a temperature detection module (1), a temperature control module (2), and a temperature adjustment module (3). The temperature detection module (1) is configured to detect and obtain a temperature of at the current moment the device. The temperature control module (2) is configured to obtain a predicted temperature at the next moment based on the temperature at the current moment and a temperature prediction model, and to output a temperature adjustment instruction to the temperature adjustment module (3) based on the predicted temperature at the next moment and a temperature threshold. The temperature adjustment module (3) is configured to adjust a temperature of the device based on the temperature adjustment instruction. The temperature control method improves the temperature stability of the device during operation and ensures the electric energy conversion efficiency of the device.