Multichannel evaporator system for a refrigerating device
Solution Overview
Problem
In multichannel evaporator systems of no-frost refrigerating devices, the existing methods for installing heaters to address frost deposition on evaporators are cumbersome and do not efficiently facilitate heat transfer, leading to reduced heat transfer efficiency due to complex fastening systems and limited surface area for frost removal.
Innovation Solution
A multichannel evaporator system with a flat profile and bended portions featuring a mounting channel for easy heater installation, including snap-fit structures and grooves for secure heater placement, allowing for efficient heat transfer and compact design by extending the heater along the profile from inlet to outlet, enhancing frost removal and heat transfer efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If heaters are installed on fin tube evaporators using various fasteners and additional fasteners, then the heater is fixed in position, but the installation becomes complex and time-consuming
Solution Approach 1:
The mounting channel integrates multiple functions into a single component: it provides structural support for the heater, incorporates snap-fit fastening mechanisms, and eliminates the need for separate additional fasteners. This merging of functions simplifies the overall fastening system while maintaining reliable heater fixation on the evaporator fins.
2Reliability
If heaters are installed on evaporators with complex fastening systems, then the heater is securely fixed, but the installation time and complexity increase
Solution Approach 1:
The mounting channel is pre-formed with integrated snap-fit structures and fastening features during the evaporator manufacturing process. This preliminary preparation eliminates the need for complex assembly operations during installation, allowing the heater to be quickly secured to the evaporator fins without requiring multiple fasteners or time-consuming fastening procedures.
3Area of stationary object
If the heater is installed on the inner portion of the evaporator profile, then space is utilized, but access for installation and maintenance becomes difficult
Solution Approach 1:
The mounting channel is positioned on the outer portion of the evaporator profile, transitioning the heater installation location from the difficult-to-access inner portion to the easily accessible outer surface. This dimensional repositioning maintains effective space utilization for heat transfer while dramatically improving accessibility for installation, maintenance, and inspection operations.
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
The solution simplifies heater installation, increases heat transfer efficiency by ensuring continuous heating, and maintains a compact structure, effectively addressing the challenge of frost deposition and enhancing the overall performance of the evaporator system.
Implementation Method 1
a heater (20) and an auxiliary heater (30) entering the mounting channel (50) at the inlet port (21) and the second inlet port (31) extend straightly in a straight portion (22, 32) along the planar portion (18)
Implementation Method 2
the refrigerant fluid compressed by the compressor is expanded on an evaporator placed in the heat-insulated refrigerating cabinet so that heat is extracted from the environment
Data Source
Figure 1
Figure 2
AI summary
The present invention is a multichannel evaporator system for a refrigerating device comprising a flat profile (10) having a plurality of parallel refrigerant fluid channels (11) and mutually bended portions (15) so as to provide a fluid transmission between a fluid inlet (12) and a fluid outlet (16) and a fin assembly (40) extending between the bended portions (15).