Modular Ducting for Drive Heat Management
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Solution Overview
Problem
Existing cooling systems for rack-mounted arrays of drives, such as servo drives, are expensive and require specialist equipment, and they fail to effectively manage heat without modifying existing cabinets, leading to performance degradation due to hot air rising and heating upper drives.
Innovation Solution
A modular and user-configurable drive and air duct system that uses ducting pieces with partially open end faces to divert hot air sideways, preventing vertical heat rise, and can be easily integrated into existing setups without costly reconfiguration, utilizing click-fit attachment and optional fan assistance for enhanced airflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional cooling systems are used to cool banks of drives, then heat management is improved, but system cost and complexity increase due to specialist equipment requirements
Solution Approach 1:
The patent uses simple, inexpensive plastic ducting pieces instead of complex, expensive specialist cooling equipment. These ducting pieces are easy to manufacture and install, providing effective heat management without requiring sophisticated systems. The ducts are simple geometric shapes that can be easily replaced or reconfigured if needed.
Solution Approach 2:
The ducting system utilizes natural convection currents to move hot air away from drives without requiring active cooling components. The heated air naturally rises and flows through the ducting passages, creating a passive cooling effect that eliminates the need for fans, pumps, or controlled thermal systems.
2Temperature
If specialist cooling equipment is installed in cabinets, then cooling performance is improved, but installation and maintenance costs increase
Solution Approach 1:
The patent employs simple plastic ducting pieces that are inexpensive to manufacture and install. These ducts can be easily cut, shaped, and positioned within existing cabinet structures without requiring specialized installation equipment or expertise, dramatically reducing installation costs compared to specialist cooling systems.
Solution Approach 2:
The cooling system is divided into individual modular ducting pieces, each serving a specific drive or section. This segmentation allows for easy installation by simply attaching ducts to relevant drives, and enables selective replacement or modification of individual components without affecting the entire cooling system.
3Volume of moving object
If drives are mounted vertically in banks, then space utilization is improved, but heat accumulation occurs as hot air rises and heats upper drives
Solution Approach 1:
The patent extracts hot air from the vicinity of drives using ducting pieces that capture rising thermal currents. The ducts are positioned to intercept hot air as it rises from drives and channel it away through horizontal or upward passages, removing the harmful thermal effect from the drive bank environment.
Solution Approach 2:
The ducting system introduces horizontal airflow passages to complement the vertical mounting arrangement. By creating horizontal ducting routes, the system redirects hot air movement from purely vertical convection to a combination of vertical rise and horizontal channeling, effectively removing heat laterally rather than allowing it to accumulate vertically.
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 solution effectively reduces heat transfer between drives in a bank, improving their performance and rating by diverting hot air away from upper drives, allowing for flexible configuration to suit different drive sizes and setups, and can be integrated into existing systems at a low cost.
Implementation Method 1
Hot air from the lower drives rises up through the bank and heats the drives in the rows above... the at least partially open base face of the ducting piece is arranged to cover the air vent of the drive
Data Source
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AI summary
A drive apparatus is provided which comprising a ducting piece coupled to a drive comprises an air vent. The base of the ducting piece is open to receive exhaust gases from the drive and the ducting piece then diverts these gases horizontally. A system may be provided comprises a plurality of such apparatuses, with the ducting pieces coupled to one another to pass the gases along a horizontal pathway.