HVAC Component Identification Through Sealed Opening
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Solution Overview
Problem
Current heating, ventilation, and air conditioning (HVAC) systems in motor vehicles require disassembly to identify components like evaporators, which is a cumbersome process, especially when installed in vehicles, and there is a need to determine the refrigerant fluid used without dismantling the system.
Innovation Solution
An identification system that includes an identification reference for the evaporator, accessible through a sealed opening in the HVAC unit, allowing for reading without disassembly, using a transparent window, breakable wall, or hinged flap for closure, ensuring the system remains sealed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the HVAC unit is sealed to maintain system integrity, then system reliability is improved, but component identification becomes difficult requiring disassembly
Solution Approach 1:
The sealed housing is segmented by providing specific openings (reading openings) that allow access to identification references without compromising the overall seal. The housing is divided into functional zones: sealed areas for component protection and opening areas for identification access.
Solution Approach 2:
An intermediary structure (opening with closure means) is introduced between the sealed housing and the external environment. This intermediary allows optical access to identification references while maintaining the seal when closed, resolving the conflict between accessibility and sealing.
2Measurement precision
If disassembly is required to identify components, then accurate identification is possible, but time consumption and operational complexity increase
Solution Approach 1:
Identification references are pre-positioned on components and made visible through openings in the housing. This preliminary arrangement allows immediate identification without disassembly, eliminating the time-consuming process of dismantling the HVAC unit.
Solution Approach 2:
The mechanical action of disassembly is replaced by optical access through openings. Instead of physically removing components to identify them, the system uses visual access through strategically placed openings in the sealed housing.
3Ease of operation
If openings are provided for component identification, then accessibility is improved, but system sealing may be compromised
Solution Approach 1:
The closure means for the openings are designed to be movable between open and closed positions. This dynamic feature allows the opening to adapt to different operational states: open for identification access, closed for maintaining seal integrity.
Solution Approach 2:
The closure means act as an intermediary element that bridges the opening and the sealed environment. When closed, they restore the sealing function; when open, they allow access. This intermediary resolves the contradiction between accessibility and sealing.
Data Source
Figure 1a~1c
Figure 2a~2b
Figure 3a~4
AI summary
The system has a reading opening (32) reading an identification reference (31) of a component (10) of a heating, ventilation and air conditioning box (20) of a motor vehicle, where the reading opening is arranged through a wall (21) of the heating, ventilation and air conditioning box of a motor vehicle. A closing unit (33) closes the reading opening, where the closing unit has a transparent window (33a), retainer plate and a divisible wall arranged in the reading opening. USE : System for identifying a component i.e. evaporator, that is connected to an air-conditioning thermodynamic loop, in which refrigerant e.g. supercritical fluid such as carbon dioxide (all claimed), or subcritical fluid such as dichlorodifluoromethane (R12) or 1,1,1,2-Tetrafluoroethane (R134A) refrigerant, circulates, of a thermal treatment circuit of air flow in a heating, ventilating and air conditioning box of a motor vehicle. Can also be used for identifying other components such as radiator of the thermal treatment circuit of air flow. ADVANTAGE : The system can identify the identification reference of the component through the opening without disassembling the box, while assuring the sealing of the box with respect to exterior medium. DESCRIPTION OF DRAWINGS : The drawing shows a sectional view of a component identifying system. 10 : Component 20 : Heating, ventilation and air conditioning box 21 : Wall 31 : Identification reference 32 : Reading opening 33 : Closing unit 33a : Transparent window.