Double Evaporator Tank Structure With Integrated Refrigerant Flow Path
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Solution Overview
Problem
The existing double evaporator structure for air conditioners in vehicles requires multiple inlets and outlets, increasing manufacturing costs and hindering miniaturization due to the complexity of pipe connections and space usage, which degrades heat exchange efficiency and cooling performance.
Innovation Solution
A double evaporator design with a first header tank featuring a depressed part and a flow part forming member that allows refrigerant flow separately within the first and second compartments, reducing the number of inlets and outlets by integrating the flow part forming member with the tank and baffle, and using a flow part forming member to enhance assembly and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a double evaporator structure with separate first and second columns is used to improve heat exchange efficiency, then cooling performance is improved, but the number of inlets and outlets increases leading to increased device complexity and manufacturing cost
Solution Approach 1:
The patent merges the flow part forming member with the tank structure, integrating functions that were previously separate. The flow part forming member is formed as an integral part of the tank through deformation, eliminating the need for separate components and reducing the number of inlets and outlets while maintaining the double column evaporator structure for improved cooling performance
Solution Approach 2:
The tank structure is designed to serve multiple functions: it acts as both the container and the flow part forming member. By deforming a specific region of the tank to form the flow part, the structure achieves multi-functionality, reducing device complexity while maintaining the heat exchange efficiency of the double column configuration
2Reliability
If multiple separate components are used in the double evaporator structure to maintain functional independence, then reliability is improved, but assembly complexity increases reducing productivity
Solution Approach 1:
The flow part forming member is formed as an integral part of the tank through deformation rather than being a separate component. This merging of functions reduces the number of parts that need to be assembled while maintaining the functional independence required for reliable operation of the double column evaporator structure
Solution Approach 2:
The flow part is formed by deforming the tank structure during the manufacturing process itself, rather than assembling separate components later. This preliminary action of forming the flow part as part of the tank fabrication process reduces assembly complexity and improves productivity while ensuring functional independence
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 design simplifies the assembly process, reduces the number of components, and facilitates miniaturization by integrating the flow part forming member with the tank, improving productivity and heat exchange efficiency while reducing the number of connection pipe lines.
Implementation Method 1
the liquefied refrigerant is in a low-temperature and low-pressure wet saturated steam state by again passing through the expansion valve, and is again introduced into the evaporator and vaporized to absorb vaporization heat and cool the surrounding air
Implementation Method 2
the compressed refrigerant in a gaseous state is liquefied by passing through the condenser, the liquefied refrigerant is in a low-temperature and low-pressure wet saturated steam state
Data Source
AI summary
Provided is an evaporator including a tank formed with a depressed part and a flow part having a refrigerant flow therein using a flow part forming member, separately from a first compartment and a second compartment to improve a refrigerant channel structure, in a double evaporator in which a refrigerant flows in a first column and a second column, respectively, thereby reducing the number of four inlets and outlets that is disposed in the first column and the second column, respectively, fixing a baffle at an accurate position, and reducing a defective rate to more improve productivity.