HVAC Intake Hood Lock Bar for Quick Air Filter Access
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Solution Overview
Problem
HVAC systems face difficulties in efficiently accessing and replacing air filters, leading to lengthy service times and wear on components due to the need to remove parts of the intake system or the entire hood.
Innovation Solution
The intake hood system includes supports, brackets, and side panels that capture air filters, allowing for quick assembly and disassembly, enabling easy installation and replacement of filters without removing the entire hood, using features like C-channels and lock bars for secure alignment and access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the entire intake hood or portions of the intake system are removed to access the air filter, then the air filter can be accessed for replacement, but the service time becomes lengthy and components experience wear
Solution Approach 1:
The intake hood is divided into a removable filter assembly portion and a fixed housing portion. The filter assembly includes the air filter and associated supports that can be detached as a unit, allowing quick access without removing the entire intake hood. This segmentation enables service personnel to rapidly replace filters while minimizing disassembly and reducing service time.
2Ease of operation
If the entire intake hood or portions of the intake system are removed to access the air filter, then the air filter can be accessed for replacement, but components experience wear due to repeated removal and reinstallation
Solution Approach 1:
The intake hood is divided into a removable filter assembly portion and a fixed housing portion. The filter assembly includes the air filter and associated supports that can be detached as a unit, allowing quick access without removing the entire intake hood. This segmentation enables service personnel to rapidly replace filters while minimizing disassembly and reducing service time.
Solution Approach 2:
The lock bar mechanism provides a dynamic locking system that secures the filter assembly during operation but allows quick release during maintenance. The lock bar can be engaged or disengaged with simple movement, transitioning the filter assembly from a fixed secured state to a removable state without requiring multiple fasteners or complex disassembly procedures.
3Productivity
If supports and brackets are used to capture air filters, then filter replacement becomes easier and quicker, but the device complexity increases
Solution Approach 1:
The intake hood is divided into a removable filter assembly portion and a fixed housing portion. The filter assembly includes the air filter and associated supports that can be detached as a unit, allowing quick access without removing the entire intake hood. This segmentation enables service personnel to rapidly replace filters while minimizing disassembly and reducing service time.
Solution Approach 2:
The lock bar mechanism provides a dynamic locking system that secures the filter assembly during operation but allows quick release during maintenance. The lock bar can be engaged or disengaged with simple movement, transitioning the filter assembly from a fixed secured state to a removable state without requiring multiple fasteners or complex disassembly procedures.
Data Source
AI summary
An intake hood system for a heating, ventilation, and/or air conditioning (HVAC) unit includes an intake hood having an inlet configured to receive an air flow into the intake hood, a first support configured to engage a first end of an air filter, and a second support configured to engage a second end of the air filter, where the first support is configured to align with a boundary of the inlet. The intake hood system also includes a lock bar configured to couple to the intake hood while abutting the first support and the second support to secure the air filter within the intake hood.