Control method for a refrigerator and a refrigerator
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Solution Overview
Problem
Existing refrigerator control methods waste energy by cooling the entire refrigerating chamber, even when only specific compartments need refrigeration, and can lead to nutrient loss due to uneven temperature distribution and inefficient cooling.
Innovation Solution
A partition refrigeration control method using infrared sensing devices to monitor temperatures in individual compartments and a split air blowing device to distribute cooling air only where needed, along with a refrigerating air gate to manage overall chamber temperature, optimizing cooling based on preset thresholds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the entire refrigerating chamber is cooled using existing control methods, then the temperature control is simple, but energy is wasted and cooling efficiency is reduced
Solution Approach 1:
The refrigerating chamber is divided into multiple item storage compartments, each with independent temperature sensing and control. The control system segments the cooling demand by identifying which specific compartments require refrigeration based on item presence and temperature, rather than cooling the entire chamber uniformly.
Solution Approach 2:
Different item storage compartments receive differentiated cooling treatment based on their specific thermal conditions and item requirements. The split air blowing device directs cooling air flow selectively to compartments that need it, creating local quality variations in the cooling service provided to different regions of the refrigerating chamber.
2Manufacturing precision
If the refrigerating chamber is cooled uniformly, then the control method is simple, but the temperature distribution is uneven and nutrient loss occurs
Solution Approach 1:
The infrared sensing device detects items and their temperatures in advance before uniform cooling is applied. The control system uses this preliminary information to pre-identify which compartments require cooling and adjust the split air blowing device accordingly, preventing unnecessary cooling of compartments that already have adequate temperature control.
Solution Approach 2:
The system continuously monitors item temperatures using infrared sensing and adjusts the cooling air distribution in real-time based on feedback from temperature sensors in each compartment. This closed-loop control ensures precise temperature maintenance while optimizing cooling efficiency by responding to actual thermal conditions rather than applying uniform cooling.
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 method reduces energy waste by targeting specific compartments for cooling, minimizes nutrient loss by maintaining precise temperature control, and enhances storage efficiency by adjusting refrigeration based on comprehensive temperature judgments.
Implementation Method 1
one infrared sensing device is driven to sense temperatures of items stored in the item storage compartments respectively
Implementation Method 2
driving the split air blowing device to operate in a state of providing the cooling air flow to the item storage compartment
Data Source
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AI summary
The present invention provides a partition refrigeration control method and device for a refrigerating chamber of a refrigerator. The refrigerating chamber of the refrigerator is divided into a plurality of item storage compartments; and an infrared sensing device, a split air blowing device and the like are arranged in the refrigerating chamber. The partition refrigeration control method comprises: determining that the refrigerating chamber enters a refrigeration state; acquiring the temperatures, sensed by the infrared sensing device, of the items stored in the plurality of item storage compartments; comparing the temperature of the item stored in each item storage compartment with a corresponding preset area refrigeration start temperature threshold of each item storage compartment; setting a refrigeration state identifier corresponding to the item storage compartment in which the temperature of the item is higher than the corresponding area refrigeration start temperature threshold as start; and driving the split air blowing device to operate in a state of providing the cooling air flow to the item storage compartment whose refrigeration state identifier is start. By adoption of the solution provided by the present invention, the electric energy waste may be avoided, the storage effect of the refrigerating chamber of the refrigerator is improved, and nutrient loss of food is reduced.