Ice Making Unit Layout for Direct Refrigerant Cooling
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Solution Overview
Problem
Conventional refrigerators with ice making compartments face challenges in achieving optimal cooling performance and ease of maintenance, particularly in the ice making unit, which affects efficiency and reliability.
Innovation Solution
The design incorporates an ice making unit with a refrigerant pipe that undergoes direct heat exchange with air in the compartment, enhanced by heat-exchanging ribs and a fan for improved air circulation, along with a drainage duct system for efficient air flow and easy installation and replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If cold air is supplied to the ice making compartment through forced convection from an evaporator, then the ice making compartment can be cooled, but the cooling performance is insufficient and energy loss increases
Solution Approach 1:
The patent extracts the refrigerant pipe from the conventional evaporator-based indirect cooling system and places it directly in the ice making compartment. This allows the refrigerant pipe to directly cool the air and ice making tray without relying on forced convection from a separate evaporator, thereby improving cooling efficiency and reducing energy loss.
Solution Approach 2:
The patent introduces the refrigerant pipe as a direct intermediary between the refrigeration cycle and the ice making compartment. Instead of using air as an intermediary (which causes energy loss in forced convection), the refrigerant pipe directly transfers cooling energy to the compartment and ice making tray, eliminating the inefficient air-based heat transfer medium.
2Reliability
If the ice making unit is integrated into the refrigerator body, then cooling performance can be maintained, but replacement and repair become difficult
Solution Approach 1:
The patent segments the ice making unit into a separate, detachable module that can be independently removed from the refrigerator body. The ice making tray and refrigerant pipe connections are designed to be separable, allowing the ice making unit to be easily replaced without affecting the main refrigerator structure or cooling system.
Solution Approach 2:
The patent implements dynamic, adjustable connections between the ice making unit and the refrigerator body. The refrigerant pipe connections and air passage interfaces are designed to be movable and reconfigurable, enabling easy installation and removal of the ice making unit while maintaining proper sealing and functionality during operation.
3Productivity
If a fan is used to circulate air in the ice making compartment, then heat exchange is promoted, but device complexity increases
Solution Approach 1:
The patent merges the air circulation function with the existing refrigerator cooling system. The refrigerant pipe serves dual purposes: directly cooling the ice making tray and simultaneously circulating cold air through the ice making compartment. This eliminates the need for a separate fan-driven circulation system, reducing device complexity while maintaining heat exchange efficiency.
Solution Approach 2:
The refrigerant pipe performs self-service by automatically circulating cold air through its placement and design within the ice making compartment. The cold air generated by the refrigerant pipe naturally circulates through the compartment and ice making tray, eliminating the need for external mechanical assistance like fans to promote heat exchange.
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 configuration enhances cooling performance, reduces energy loss, and simplifies the assembly and maintenance of the ice making unit, leading to improved energy efficiency and ease of replacement.
Implementation Method 1
air present in the ice making compartment is cooled while undergoing direct heat exchange with at least one of the ice making unit and the refrigerant pipe
Implementation Method 2
a fan for the ice making compartment to circulate the air of the ice making compartment and the air comes into contact with at least one of the ice making unit and the refrigerant pipe, thereby promoting the heat exchange
Implementation Method 3
The ice making unit may include at least one heat-exchanging rib to promote the heat exchange with the air of the ice making compartment
Data Source
AI summary
An ice making unit and a refrigerator having the same are discussed. The refrigerator includes an ice making unit arranged in the ice making compartment, to produce ice, and a refrigeration cycle comprising a refrigerant pipe to supply cooling energy to the ice making compartment. Air present in the ice making compartment is cooled while undergoing direct heat exchange with at least one of the ice making unit and the refrigerant pipe.