Under-Seat Blower Unit Layout for Easier Vehicle AC Maintenance
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Solution Overview
Problem
The existing vehicle air conditioning apparatus in construction machines requires complex maintenance procedures due to the need to remove the seat bracket and driver seat to access blower and heat exchanger components, prolonging downtime and increasing maintenance time, especially for the blower which is prone to dust accumulation.
Innovation Solution
The blower unit and heat exchanger unit are detachably connected along the vehicle's floor, forming an air flow path, allowing for easy detachment and attachment without removing the seat bracket, thus simplifying maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the blower and heat exchanger are integrated in a fixed case, then the structural integrity is improved, but the maintenance accessibility deteriorates
Solution Approach 1:
The air conditioning apparatus is divided into separate modular units: a blower unit and a heat exchanger unit. Each unit can be independently removed and maintained without affecting the other, eliminating the need to disassemble the entire case or remove the driver seat for routine maintenance tasks.
Solution Approach 2:
The connection between the blower unit and heat exchanger unit is designed to be detachable rather than permanent. This dynamic configuration allows the units to be easily separated for maintenance and reconnected for operation, adapting the system's structure based on operational or maintenance needs.
2Productivity
If the blower unit is detachably connected to the heat exchanger unit, then the maintenance efficiency is improved, but the device complexity increases
Solution Approach 1:
The system is segmented into standardized modular units with defined connection interfaces. This segmentation enables independent maintenance of each unit while maintaining overall system functionality, improving maintenance efficiency without requiring complex disassembly procedures.
Solution Approach 2:
The detachable connection design serves multiple functions: it enables easy maintenance access, allows for flexible configuration arrangements, and facilitates component replacement. This universal design approach improves maintenance efficiency while the standardized interfaces keep the added complexity manageable.
Data Source
AI summary
A vehicle air conditioning apparatus 1 installed between a part under a seat and a floor of a vehicle includes a blower unit 2 including a blower, and a heat exchanger unit 3 including a heat exchanger. The blower unit and the heat exchanger unit are connected with one another to form an air flow path along the floor of the vehicle. The blower unit is detachably connected with the heat exchanger unit in a direction crossing the air flow path and being along the floor of the vehicle.