Vehicle Air-Conditioning Box With Peltier Defogging Airflow
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Solution Overview
Problem
Existing vehicle air-conditioning systems that use heating wires to defog windshields are complex and costly, affecting driving safety due to interference with the driver's sight.
Innovation Solution
A vehicle air-conditioning box incorporating a semiconductor refrigeration chip and heat dissipation structures that dehumidify and heat or cool air to defog windshields without the need for extensive wiring, using a blower and control doors to manage airflow effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If heating wires are built in the front windshield to defog, then defogging effect is achieved, but device complexity and cost increase
Solution Approach 1:
The patent extracts the heating function from the windshield structure itself and relocates it to a separate air conditioning system. Instead of embedding heating wires in the windshield, the system uses an air outlet that directs heated air onto the windshield surface to achieve defogging, thereby eliminating the complex wiring integration into the windshield.
Solution Approach 2:
The patent introduces air as an intermediary medium to transfer heat to the windshield. Rather than direct electrical heating through wires in the glass, the system heats air and uses this heated air as a mediator to warm the windshield surface, preventing fog formation through thermal convection.
2Reliability
If heating wires are built in the front windshield to defog, then defogging effect is achieved, but manufacturing cost increases
Solution Approach 1:
The patent makes the air conditioning system multi-functional by enabling it to perform both climate control and windshield defogging. The same air outlet and heating mechanism used for cabin temperature regulation are also utilized for defogging the windshield, eliminating the need for separate heating wire installation and reducing overall manufacturing costs.
Solution Approach 2:
The patent merges the defogging function with the existing air conditioning system. By combining these functions, the system eliminates redundant components and reduces manufacturing complexity, as the air outlet and heating mechanisms serve dual purposes: cabin climate control and windshield defogging.
3Reliability
If heating wires are built in the front windshield to defog, then defogging effect is achieved, but driver's sight is affected
Solution Approach 1:
The patent extracts the heating elements from the windshield area and relocates them to the air conditioning system. This removal eliminates the visual interference caused by heating wires on the windshield while preserving the defogging function through heated air delivery to the windshield surface.
4Use of energy by moving object
If semiconductor refrigeration chip is used to cool and dehumidify air, then energy efficiency is improved, but device complexity increases
Solution Approach 1:
The patent makes the semiconductor refrigeration chip multi-functional by enabling it to perform both cooling and dehumidification simultaneously. This single component handles multiple air treatment functions, improving energy efficiency while avoiding the need for separate cooling and dehumidification systems that would increase complexity.
Solution Approach 2:
The patent merges cooling and dehumidification functions into a single air processing stream through the semiconductor refrigeration chip. By combining these functions in one integrated process rather than separate systems, the patent achieves energy efficiency gains while minimizing the increase in device 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
The solution effectively defogs windshields without compromising driving safety, using efficient energy management and minimal electricity, even when vehicle battery levels are low, and adapts to different seasons and conditions.
Implementation Method 1
a semiconductor refrigeration chip (5)... The first end of the semiconductor refrigeration chip (5) is in contact with the first heat dissipation structure (4)... controlling the first end of the semiconductor refrigeration chip (5) to cool... air... dehumidified by the first heat dissipation structure (4)... become dry air
Implementation Method 2
the first heat dissipation structure (4)... made of a material with good heat conductivity... When a constant current flows into the semiconductor refrigeration chip (5), one end of the first end and the second end heats, and the other end of the first end and the second end cools
Implementation Method 3
a blower (3)... disposed in the main air duct (1)... The blower (3), the first heat dissipation structure (4), and the semiconductor refrigeration chip (5) are disposed in the main air duct (1)
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
A vehicle air-conditioning box is provided, and includes a main air duct (1), an air-conditioning air duct (2), a blower (3), a first heat dissipation structure (4), and a semiconductor refrigeration chip (5). The main air duct (1) is in communication with the air-conditioning air duct (2). The blower (3), the first heat dissipation structure (4), and the semiconductor refrigeration chip (5) are disposed in the main air duct (1). A first end of the semiconductor refrigeration chip (5) is in contact with the first heat dissipation structure (4). A method for controlling a vehicle air-conditioning box, an air conditioner controller, and a vehicle defogging system are further provided.