Transport Refrigeration Circuit for Electronic Component Heat Dissipation
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Solution Overview
Problem
Transport refrigeration vehicles face challenges in efficiently dissipating heat from increasing numbers of electronic components like transformers and inverters, as existing methods require larger radiators to cope with extreme temperatures, which is not feasible due to limited space and load on the vehicle.
Innovation Solution
A refrigeration system that incorporates an electronic component heat dissipation circuit using a heat exchanger to exchange heat with refrigerant from a branch of the main refrigeration circuit, dynamically controlled by throttling elements to manage temperature, allowing for efficient heat dissipation without impacting the main refrigeration circuit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the radiator size is increased to cope with extreme temperatures, then the heat dissipation capacity is improved, but the space and load on the vehicle increase
Solution Approach 1:
The patent merges the electronic component heat dissipation function with the existing refrigeration system by integrating an associated heat exchanger into the refrigeration circuit. The refrigerant from the main refrigeration circuit flows through the associated heat exchanger to absorb heat from electronic components, combining two heat dissipation needs into one system. This eliminates the need for a separate large radiator, reducing vehicle load while maintaining heat dissipation capacity.
Solution Approach 2:
The refrigeration system is designed to perform multiple functions: it provides refrigeration to the storage compartment through the evaporator and simultaneously provides heat dissipation for electronic components through the associated heat exchanger. The refrigerant circuit is configured to serve both purposes, making the system universal and eliminating the need for separate dedicated heat dissipation equipment.
2Temperature
If the radiator size is increased to cope with extreme temperatures, then the heat dissipation capacity is improved, but the space on the vehicle increases
Solution Approach 1:
The patent merges the electronic component heat dissipation function with the existing refrigeration system by integrating an associated heat exchanger into the refrigeration circuit. The refrigerant from the main refrigeration circuit flows through the associated heat exchanger to absorb heat from electronic components, combining two heat dissipation needs into one system. This eliminates the need for a separate large radiator, reducing vehicle load while maintaining heat dissipation capacity.
Solution Approach 2:
The refrigeration system is designed to perform multiple functions: it provides refrigeration to the storage compartment through the evaporator and simultaneously provides heat dissipation for electronic components through the associated heat exchanger. The refrigerant circuit is configured to serve both purposes, making the system universal and eliminating the need for separate dedicated heat dissipation equipment.
3Adaptability or versatility
If more electronic components are added to the vehicle, then the functionality is improved, but the heat dissipation demand increases
Solution Approach 1:
The refrigeration system is designed to perform multiple functions: it provides refrigeration to the storage compartment through the evaporator and simultaneously provides heat dissipation for electronic components through the associated heat exchanger. The refrigerant circuit is configured to serve both purposes, making the system universal and eliminating the need for separate dedicated heat dissipation equipment.
Solution Approach 2:
The associated heat exchanger acts as an intermediary between the refrigerant circuit and the electronic component cooling circuit. It enables heat transfer from the electronic components to the refrigerant without requiring direct connection or a separate large radiator system, thus managing heat dissipation demand efficiently.
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 system provides sufficient heat dissipation for electronic components under extreme temperatures without increasing the size of the main refrigeration system, optimizing space and load on the vehicle.
Implementation Method 1
the electronic component heat dissipation circuit comprises an associated heat exchanger, in which cooling medium in the electronic component heat dissipation circuit exchanges heat with refrigerant from a first branch of the main refrigeration circuit
Implementation Method 2
the first branch extends from the main refrigeration circuit between the condenser and the main throttling device, and is in communication with an EVI (Enhanced Vapor Injection) inlet of the compressor through a first throttling element and the associated heat exchanger
Data Source
Figure 1~2
Figure 3
AI summary
The present application provides a refrigeration system for transport refrigeration vehicles and a heat dissipation method for electronic components therein. The refrigeration system comprises: a main refrigeration circuit comprising a compressor (1), a condenser (2), a main throttling device (3), and an evaporator (4) that are sequentially connected, where the evaporator is configured to provide refrigeration to a storage compartment of the transport refrigeration vehicles; an electronic component heat dissipation circuit (5) configured to provide heat dissipation for electronic components; wherein, the electronic component heat dissipation circuit comprises an associated heat exchanger (52), in which refrigerant in the electronic component heat dissipation circuit exchanges heat with refrigerant from a first branch of the main refrigeration circuit, where the first branch extends from between the condenser (2) and the main throttling device (3) on the main refrigeration circuit, and is in communication with an EVI inlet (13) of the compressor (1) through a first throttling element (81) and the associated heat exchanger (52). The device and method according to the embodiments of the present invention can provide sufficient heat dissipation to the electronic component of transport refrigeration vehicles to cope with extreme ambient temperatures, with little impact on the main refrigeration circuit.