Mobility Air Conditioner Ventilation Mixing for Heat Pump Efficiency
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Solution Overview
Problem
Electric vehicles face challenges in maintaining optimal battery performance due to temperature fluctuations and increased power consumption from integrating outside air ventilation, which affects heat pump efficiency and battery charging/discharging efficiency.
Innovation Solution
An air conditioner system with dual heat exchangers and adjustable valves allows selective transmission of indoor air to an outdoor heat exchanger, optimizing heat pump performance by mixing indoor and outdoor air for temperature management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If outside air is introduced for indoor ventilation, then indoor air quality is improved, but the load of the cooling and heating system increases resulting in increased power consumption
Solution Approach 1:
The patent merges the ventilation function with the heat pump system by integrating the outside air introduction path with the existing heat exchange flow paths. The outside air is routed through the heat exchangers to utilize the refrigerant's heating or cooling effects, thereby combining two separate functions (ventilation and temperature control) into one integrated system that reduces overall energy consumption.
Solution Approach 2:
The heat pump system is designed to perform multiple functions simultaneously: it provides temperature control (heating/cooling) and ventilation (air quality improvement) through a single integrated system. The outside air flow path is configured to interact with the refrigerant cycle, allowing the system to condition introduced air while maintaining indoor temperature, thus achieving multi-functionality.
2Reliability
If a separate heating and cooling system is used for battery module temperature control, then battery performance is maintained, but device complexity increases
Solution Approach 1:
The patent designs the heat pump system to serve dual purposes: conditioning the indoor air environment and controlling the battery module temperature. By routing air flows and heat exchange paths to simultaneously address both indoor climate control and battery thermal management, the system eliminates the need for separate heating and cooling systems, thereby reducing complexity while maintaining battery performance.
Solution Approach 2:
The patent combines the indoor air conditioning function and battery thermal management function into a single integrated heat pump system. The same refrigerant cycle and heat exchangers are used to manage both the cabin environment and battery temperature, merging two previously separate systems into one unified solution that reduces overall system complexity.
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
Improves heat pump efficiency by recovering indoor air heat during ventilation, reducing power consumption, and maintaining optimal battery conditions.
Implementation Method 1
an outside air flow path provided with an outside air inflow path and an outside air discharge path and provided with a first heat exchanger, an inside air flow path provided with an inside air inflow path and an inside air discharge path to communicate with an indoor space and provided with a second heat exchanger
Implementation Method 2
Refrigerant may be circulated in the first heat exchanger and the second heat exchanger, and as the second heat exchanger absorbs or dissipates heat by circulation of refrigerant
Implementation Method 3
a first heat exchange flow path communicatively connected to the outside air flow path and the inside air flow path and provided with a first valve to allow outside air communicating with the outside air flow path to selectively communicate with the inside air flow path, and a second heat exchange flow path communicatively connected to the inside air flow path and the outside air flow path and provided with a second valve to allow inside air communicating with the inside air flow path to selectively communicate with the outside air flow path
Data Source
AI summary
In an air conditioner system for a mobility device, some inside air communicates with an outdoor heat exchanger when outside air for indoor ventilation is introduced, thereby improving heat pump performance. That is, by allowing indoor cold air to communicate with the outdoor heat exchanger upon mixing the inside and outside air during indoor cooling and allowing indoor warm air to communicate with the outdoor heat exchanger upon mixing the inside and outside air during indoor heating, it is possible to increase the heat pump efficiency as the outdoor heat exchanger recovers the heat of the indoor air during indoor cooling and heating. In addition, introduced is an air conditioner system for a mobility device in which a structure is simplified as inside air may be selectively transmitted to an outdoor heat exchanger side only by applying a flow path structure and a valve.