Adjustable Bracket Assembly for Multi-Damper Actuation in HVAC Ducts
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Solution Overview
Problem
Existing damper systems in HVAC and venting systems face challenges in space efficiency and installation complexity, particularly when retrofitting or installing in ducts with varying dimensions, which complicates the use of traditional actuator systems.
Innovation Solution
An adjustable bracket assembly that transmits actuation force from a single actuator to multiple damper assemblies, allowing for adjustable mounting and alignment to accommodate varying duct configurations, including parallel and skewed ducts, using a shaft and output levers to control the position of multiple damper assemblies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional actuator systems are used for damper control, then reliable damper operation is achieved, but space efficiency deteriorates and installation complexity increases
Solution Approach 1:
The patent combines multiple actuator systems into a single integrated bracket assembly that can control multiple dampers simultaneously. The bracket assembly merges the functions of separate actuators, linkages, and mounting structures into one compact unit, reducing overall space requirements while maintaining reliable operation of all connected dampers.
Solution Approach 2:
The bracket assembly is designed as a universal component that can control multiple dampers (first damper, second damper, and optionally third damper) from a single actuation point. This multi-functional design eliminates the need for separate actuators for each damper, significantly reducing space occupation while ensuring reliable control of all dampers through a single actuator system.
2Reliability
If traditional actuator systems are used for damper control, then damper operation is achieved, but installation complexity increases
Solution Approach 1:
The bracket assembly integrates multiple mounting interfaces and linkage connections into a single pre-assembled unit. This merging of previously separate components (mounting brackets, linkages, adjustment mechanisms) into one integrated assembly dramatically reduces installation complexity, as the entire control system for multiple dampers can be installed as a single unit rather than assembling multiple separate actuator systems on-site.
Solution Approach 2:
The bracket assembly incorporates adjustable and adaptable features that allow it to be configured for different installation scenarios (parallel ducts, skewed ducts, various spacing requirements). This dynamic adjustability simplifies installation by eliminating the need for custom fabrication or complex alignment procedures, as the bracket can be adapted to fit various duct configurations through its adjustable design features.
3Device complexity
If fixed mounting systems are used, then simple structure is maintained, but adaptability to varying duct configurations deteriorates
Solution Approach 1:
The bracket assembly incorporates adjustable features including variable spacing between mounting points, adjustable linkage lengths, and configurable mounting orientations. These dynamic elements allow the otherwise simple bracket structure to adapt to various duct configurations (parallel ducts with different spacing, skewed duct arrangements, different mounting heights) without requiring complex custom fabrication for each scenario.
Solution Approach 2:
The bracket assembly is designed as a universal mounting solution that can accommodate multiple duct configurations through its adjustable features. A single bracket design can serve parallel duct arrangements, skewed duct configurations, and various spacing requirements, eliminating the need for multiple specialized bracket types while maintaining structural simplicity through standardized components.
4Ease of operation
If separate actuators are used for each damper, then independent control is achieved, but space efficiency and cost deteriorate
Solution Approach 1:
The bracket assembly merges the control functions of multiple dampers into a single actuated system. By combining the linkage mechanisms for first damper, second damper, and optionally third damper into one integrated bracket structure, the system achieves space efficiency while maintaining the ability to control each damper independently through the shared actuation mechanism.
5Ease of operation
If multiple separate actuator systems are installed, then each damper can be controlled, but installation time and cost increase
Solution Approach 1:
The bracket assembly combines multiple actuator mounting interfaces and linkage connections into a single pre-assembled unit that can be installed in one operation. This merging eliminates the need to separately install and align multiple independent actuator systems, significantly reducing installation time while maintaining full control capability over all connected dampers.
Solution Approach 2:
The bracket assembly is designed and pre-configured with all necessary mounting features, linkage connections, and adjustment mechanisms before installation. This preliminary preparation of the integrated bracket system eliminates on-site assembly complexity and reduces installation time, as the bracket arrives as a ready-to-install unit requiring minimal field assembly or adjustment.
Data Source
AI summary
An example an adjustable bracket and an damper system usable with the adjustable bracket assembly for transmitting an actuation force from an actuator to a plurality of damper assemblies. The adjustable bracket assembly may include a shaft extending along and configured to rotate about a first axis in response to an output from the actuator, a first output lever configured to transmit a rotational force of the shaft to a first damper assembly, and a second output lever configured to transmit the rotational force of the shaft to a second damper assembly.