Outdoor Cabinet Cooling Control for Lower Air Conditioner Energy Use

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Solution Overview

Problem

Current temperature control systems for outdoor cabinets, particularly those used with 5G devices, face high energy consumption due to continuous operation of air conditioners to maintain temperature, leading to excessive energy waste.

Innovation Solution

A modular temperature control system that adjusts the operation of refrigeration and fan modules based on power consumption and temperature thresholds, dynamically switching between modules to optimize energy use.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the number of cabinet door air conditioners and cooling capacity are constantly increased to maintain temperature, then the temperature control reliability is improved, but the energy consumption increases excessively

Engineering Contradiction:
Improvetemperature control reliabilityVSAvoidenergy consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system dynamically adjusts the operational state of air conditioners based on real-time temperature monitoring. When the cabinet temperature is within the normal range, air conditioners are turned off or operated at reduced capacity. When temperature exceeds thresholds, air conditioners are activated or capacity increased. This dynamic adjustment maintains temperature control reliability while avoiding excessive energy consumption from continuous full-capacity operation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes operational parameters (number of active air conditioners, cooling capacity, set temperature) based on temperature conditions. Instead of maintaining constant high capacity operation, the system adjusts these parameters dynamically according to actual temperature needs, thereby reducing energy consumption while ensuring temperature control reliability when needed.

Inventive Principle:
Principle #35Parameter changes

2Stability of the object's composition

If air conditioners operate continuously to maintain temperature within normal range, then the temperature stability is improved, but the energy consumption becomes excessive

Engineering Contradiction:
Improvetemperature stabilityVSAvoidenergy consumption
Core Design Contradiction:
Stability of the object's compositionVSUse of energy by moving object

Solution Approach 1:

Instead of continuous operation, the system employs periodic action by activating air conditioners only when temperature thresholds are exceeded. The system monitors temperature continuously but intervenes only when necessary, creating a periodic on-demand operation pattern that maintains temperature stability when needed while reducing overall energy consumption compared to continuous operation.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The system allows the cabinet to self-regulate temperature within normal ranges without active cooling intervention. Air conditioners are activated only when the cabinet temperature exceeds the upper threshold, allowing the system to maintain temperature stability through minimal necessary intervention rather than continuous active control, thereby reducing energy consumption.

Inventive Principle:
Principle #25Self-service

3Temperature

If the set temperature of air conditioners is constantly lowered to meet dissipation demands, then the cooling effectiveness is improved, but the energy consumption increases

Engineering Contradiction:
Improvecooling effectivenessVSAvoidenergy consumption
Core Design Contradiction:
TemperatureVSUse of energy by moving object

Solution Approach 1:

The system adjusts the set temperature parameter dynamically based on actual cooling needs and environmental conditions. Instead of constantly maintaining a low set temperature, the system raises the set temperature when outdoor conditions permit (e.g., when outdoor temperature is lower than cabinet temperature), thereby reducing the temperature differential and cooling load, which directly reduces energy consumption while maintaining adequate cooling effectiveness.

Inventive Principle:
Principle #35Parameter changes

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

Reduces energy consumption by intelligently managing the operation of temperature control modules, ensuring efficient temperature regulation while minimizing energy waste.

Implementation Method 1

turning off the target module and turning on a refrigeration module

Methodology Applied
Scientific EffectHeat removal: Cooling

Implementation Method 2

reducing a rotational speed of a fan in a target module

Methodology Applied
Scientific EffectForced convection: Forced Convection

Data Source

PatentEP4648560A2Outdoor cabinet temperature control system, method therefor, and storage medium therefor
Publication Date: 2025.11.12 CHINA MOBILE ENERGY TECHNOLOGY BEIJING CO LTD
  • EP4648560A2 patent drawingFigure 1~2
  • EP4648560A2 patent drawingFigure 3~4
  • EP4648560A2 patent drawingFigure 5~7

AI summary

The invention discloses an outdoor cabinet temperature control system, a method therefor, and a storage medium therefor. The method comprises: when a target module in a temperature control system is operating and when the output air temperature of an equipment compartment is less than a preset temperature threshold value, the rotating speed of a fan in the target module is reduced, and when the output air temperature is equal to a preset temperature threshold value, the first operating power of the temperature control system is obtained: the target module is controlled to be turned off, a refrigeration module is controlled to be started, and when the output air temperature is equal to a preset temperature threshold value, a second operating power of the temperature control system is obtained:, and the operation of the target module and the refrigeration module are controlled according to the first operating power and the second operating power, The present invention reduces the energy consumption of the temperature control system while achieving temperature control on the equipment compartment.