Vehicle heat exchange system
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Solution Overview
Problem
Existing vehicle heat exchange systems are complex and inefficient, requiring separate components for cooling the internal combustion engine and air conditioning, which complicates the configuration and increases the number of heat exchange parts, leading to increased size and energy consumption.
Innovation Solution
A vehicle heat exchange system that integrates a cooling heat exchanger, air-conditioning heat exchangers, and hydrothermal-medium heat exchangers to share the cooling water circuit and air conditioning passage, allowing the cooling water to flow through multiple heat exchangers to dissipate heat, thereby simplifying the system and reducing the load on individual components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate components are used for cooling the internal combustion engine and air conditioning, then the cooling functions are reliable, but the system complexity and number of heat exchange parts increase
Solution Approach 1:
The patent combines the engine cooling heat exchanger and air conditioning heat exchanger into a single integrated heat exchange component. The cooling water circuit and refrigerant circuit share the same heat exchange structure, allowing both engine cooling and air conditioning functions to be performed simultaneously by one component rather than separate components, thereby reducing system complexity while maintaining reliability
Solution Approach 2:
The integrated heat exchanger serves multiple functions: it acts as both the engine cooling heat exchanger and the air conditioning evaporator/condenser. The same heat exchange structure handles both the cooling water flow for engine temperature control and the refrigerant flow for air conditioning, making the component universal and multi-functional
2Reliability
If separate components are used for cooling and air conditioning, then each component can be optimized for its specific function, but the overall system size increases
Solution Approach 1:
By merging the engine cooling heat exchanger and air conditioning heat exchanger into a single integrated structure, the patent eliminates the need for separate components. The unified heat exchange structure occupies less space than two separate heat exchangers would require, reducing overall system size while maintaining the ability to optimize both functions within the same component
Solution Approach 2:
The patent implements a nested configuration where the refrigerant channels are positioned within or alongside the cooling water channels in the integrated heat exchanger. This nesting arrangement allows both refrigerant flow and cooling water flow to occupy the same spatial envelope, maximizing space utilization and minimizing the overall volume required for the heat exchange system
3Ease of operation
If separate components are used for heat exchange, then each component can be independently controlled, but the number of heat exchange parts and energy consumption increase
Solution Approach 1:
The patent reduces the number of heat exchange parts by integrating the engine cooling and air conditioning functions into a single heat exchanger component. Instead of having separate heat exchangers that would require independent mounting, piping, and control systems, the integrated design consolidates these functions, reducing the total quantity of heat exchange parts while maintaining independent control capability through separate circuit pathways within the unified structure
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 reduces the heat dissipation requirements of the cooling heat exchanger, allows for efficient cooling and heating of the vehicle interior, and prevents discharged air from affecting interior air conditioning by directing it outside, resulting in a more compact and energy-efficient system.
Implementation Method 1
a cooling heat exchanger provided in a cooling water circuit in which cooling water for cooling a heating element of a vehicle circulates
Implementation Method 2
The radiator cools cooling water of an internal combustion engine flowing through the inside of the radiator by exchanging heat between the cooling water and the outside air
Implementation Method 3
a first air-conditioning heat exchanger configured to operate as an evaporator in a heat pump system
Implementation Method 4
The first air-conditioning heat exchanger is configured to operate as an evaporator in a heat pump system
Implementation Method 5
a first hydrothermal-medium heat exchanger configured to operate as a refrigerant condenser in the heat pump system
Implementation Method 6
The first hydrothermal-medium heat exchanger is configured to operate as a refrigerant condenser in the heat pump system
Implementation Method 7
a second air-conditioning heat exchanger in which the cooling water, which has absorbed heat of the thermal medium in the first hydrothermal-medium heat exchanger, flows
Implementation Method 8
The second air-conditioning heat exchanger is configured to heat the air-conditioning air by exchanging heat between the cooling water and the air-conditioning air
Implementation Method 9
a second hydrothermal-medium heat exchanger configured to heat the thermal medium by exchanging heat between the cooling water for cooling the heating element and the thermal medium circulating in the heat pump system
Data Source
AI summary
A vehicle heat exchange system includes a cooling heat exchanger provided in a cooling water circuit, a first air-conditioning heat exchanger as an evaporator in a heat pump system, a hydrothermal-medium heat exchanger as a refrigerant condenser in the heat pump system, a second air-conditioning heat exchanger, and an air conditioning passage in which the first air-conditioning heat exchanger and the second air-conditioning heat exchanger are disposed. A vehicle interior-exterior communication port is provided at a downstream side of the second air-conditioning heat exchanger in the air conditioning passage, to guide the air having passed through the second air-conditioning heat exchanger, to an outside of the vehicle interior. The cooling water for cooling the heating element flows through the second air-conditioning heat exchanger, and the air having passed through the second air-conditioning heat exchanger is discharged outside the vehicle interior through the vehicle interior-exterior communication port.