Blind Mate Hydraulic Manifold for Front-Rack Servicing
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Solution Overview
Problem
Existing hydraulic connection systems for liquid-cooled devices in data centers require manual disconnection from the rear, which can lead to damage if not done properly, and lacks the capability for blind, hands-free connection and disconnection.
Innovation Solution
A manifold with blind mate fittings for connecting to the rack cooling system and internal fittings for connecting to the device cooling system, along with cam-handles for leverage, allowing for blind, hands-free connection and disconnection from the front of the rack.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual disconnection from the rear is used, then connection reliability is improved, but operation complexity and risk of damage increase
Solution Approach 1:
The patent inverts the traditional rear-access quick-disconnect approach by implementing blind mate fittings accessible from the front of the rack. This allows connections to be made and broken without requiring rear access, eliminating the risk of accidental disconnection while simplifying operational procedures.
Solution Approach 2:
The blind mate fittings are designed to self-align and self-connect through guiding features and tolerance compensation mechanisms. The system performs the connection function automatically when components are brought into proximity, eliminating the need for manual alignment or complex coupling procedures.
2Reliability
If quick-disconnects are accessible from the rear, then connection security is improved, but accessibility and serviceability worsen
Solution Approach 1:
The patent reverses the access location from rear to front, allowing technicians to service hydraulic connections from the accessible front of the rack rather than requiring rear access. This maintains connection security through the blind mate design while dramatically improving accessibility for routine maintenance.
3Ease of operation
If blind mate connections are implemented, then ease of operation is improved, but connection reliability may worsen
Solution Approach 1:
The blind mate fittings incorporate self-aligning features including guiding surfaces and tolerance compensation mechanisms that automatically ensure proper alignment during connection. This eliminates the need for manual alignment while guaranteeing reliable sealing and connection integrity.
Solution Approach 2:
The patent employs tolerance compensation mechanisms that accommodate variations in manufacturing tolerances and installation parameters. By designing the fitting geometry to compensate for parameter variations, the system maintains reliable connections despite the simplified blind mate connection process.
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
Enables safe and efficient servicing of devices from the front of the rack by allowing blind mate connections, reducing the risk of hydraulic hose and cold plate damage.
Implementation Method 1
One or more cam-handles attached to the front of the device provide leverage for overcoming the connection forces of the blind mate.
Data Source
AI summary
An apparatus is provided for completing a blind mate hydraulic connection. A device is equipped at the rear of the device with a shell holding a manifold connected internally to the device cooling system. Clearances between the shell and manifold allow the manifold to rotate in two axes to adapt to a misalignment between the manifold and a rack cooling system. The device is further provided with a cam-handle attached to the front that provides leverage against the rack for overcoming the connection forces of the blind mate. The manifold and cam-handle combine to facilitate disconnecting the device from the rack cooling system from the front of the rack and servicing the device.