Pivotable Condenser Fan Assembly for Quick HVAC Maintenance Access
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Condenser fans in conventional HVAC units are difficult to access, requiring significant disassembly for maintenance, which is time-consuming and renders the unit inoperable for extended periods.
Innovation Solution
A pivotable condenser fan assembly that transitions between an operating position within the HVAC enclosure and a service position outside the enclosure, allowing for maintenance without disassembly, facilitated by a support frame with hinges and a brace for easy access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If condenser fans are positioned within the HVAC enclosure for compact installation, then space utilization is improved, but accessibility for maintenance deteriorates
Solution Approach 1:
The condenser fan assembly is designed with a movable mounting mechanism that allows it to be dynamically repositioned between an installed position (within or adjacent to the enclosure) and a removed position (fully accessible outside the enclosure). This dynamic positioning resolves the contradiction by enabling both compact installation and easy maintenance access at different times.
Solution Approach 2:
The fan assembly is designed as a separable module that can be independently removed from the enclosure. The mounting brackets and attachment mechanisms are segmented to allow easy detachment, enabling the fan assembly to be accessed for maintenance without disassembling the entire HVAC unit.
2Strength
If significant disassembly is required to access condenser fans, then structural integrity is maintained, but maintenance time increases
Solution Approach 1:
Mounting brackets and attachment mechanisms are pre-configured to enable quick connection and disconnection of the fan assembly. These preliminary structural arrangements allow maintenance personnel to access the fans by simply removing a few fasteners rather than disassembling structural components, thus maintaining integrity while reducing maintenance time.
Solution Approach 2:
The fan assembly is extracted as a separate serviceable component with dedicated mounting interfaces. This extraction allows the fans to be removed and accessed without compromising the structural integrity of the main HVAC enclosure, as the mounting brackets serve as intermediate structural elements that can be easily detached.
3Ease of repair
If condenser fans are made easily accessible, then maintenance ease is improved, but device complexity increases
Solution Approach 1:
The mounting brackets are designed to be self-aligning and self-locking features that guide the fan assembly into proper position and automatically secure it during installation. This self-service mechanism simplifies the overall system by eliminating the need for complex alignment procedures or multiple fastening steps, achieving ease of maintenance without excessive complexity.
Solution Approach 2:
The mounting brackets serve multiple functions: they provide structural support, enable easy attachment and detachment, ensure proper alignment, and facilitate quick access during maintenance. This multi-functionality reduces the need for separate specialized components, thereby achieving ease of repair without significantly increasing 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
This design reduces the time required for maintenance operations, improves HVAC unit efficiency, and decreases maintenance costs by enabling quick access and replacement of condenser fans and coils.
Implementation Method 1
a condenser fan coupled to the support frame and configured to force air through the opening
Implementation Method 2
a hinge configured to couple the condenser fan assembly to an enclosure of the HVAC unit, wherein the condenser fan assembly is configured to translate between an operating position and a service position
Data Source
AI summary
The present disclosure relates to a heating, ventilation, and/or air conditioning (HVAC) unit that includes a condenser fan assembly. The condenser fan assembly includes a support frame having an opening and a condenser fan that is coupled to the support frame and configured to force air through the opening. The condenser fan assembly is configured to translate between an operating position and a service position. The HVAC unit also includes a brace that is configured to extend from an enclosure of the HVAC unit to the condenser fan assembly to hold the condenser fan assembly in the service position.