Hot-Swappable Pump Unit for Coolant Distribution Systems
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Solution Overview
Problem
Conventional pump units in datacenter coolant distribution systems require shutdown of servers and discharge of coolant for maintenance, leading to inconvenient and costly disruptions.
Innovation Solution
A hot-swappable pump unit (HSPU) is designed to be detachably connected to the coolant loop within the coolant distribution unit (CDU), allowing for maintenance without shutting down servers or discharging coolant, through the use of quick connectors and a labor-saving mechanism for easy connection and disconnection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the pump is integrated with the pipe set in the conventional CDU, then the system structure is compact, but the maintenance procedure requires shutting down servers and discharging coolant
Solution Approach 1:
The pump unit is separated from the pipe set into an independent hot-swappable module. The pump unit includes the pump, impeller, and associated components, while the pipe set remains as a separate fixed component in the CDU. This segmentation allows the pump unit to be removed and replaced without affecting the coolant distribution system, enabling maintenance without server shutdown.
Solution Approach 2:
The pump unit is extracted as a detachable module from the integrated CDU system. The pump unit can be completely removed from the CDU housing through a dedicated access mechanism, allowing it to be serviced independently while the CDU and coolant system remain operational and connected to the servers.
2Productivity
If the pump unit is made hot-swappable with quick connectors, then maintenance can be performed without shutting down servers, but the connection mechanism becomes more complex
Solution Approach 1:
The connection mechanism transitions from a static fixed integration to a dynamic detachable system. The pump unit incorporates quick-connectors that allow rapid attachment and detachment from the CDU, enabling the system to adapt between operational and maintenance states without requiring complex assembly procedures.
Solution Approach 2:
Quick-connectors serve as intermediary components between the pump unit and the CDU. These specialized connectors facilitate the hot-swappable connection, allowing the pump unit to be rapidly attached or removed while maintaining secure fluid and electrical connections during operation.
3Ease of repair
If the pump unit is detachably disposed in the CDU, then the pump can be maintained without discharging coolant, but the structural design becomes more complex
Solution Approach 1:
The pump unit is nested within the CDU housing as a removable module. The pump unit fits into a dedicated compartment in the CDU, allowing it to be contained within the overall system structure while remaining accessible for removal and replacement through the hot-swappable mechanism.
Data Source
AI summary
A hot-swappable pump unit (HSPU) and a coolant distribution unit (CDU) using the same are disclosed. The HSPU is connected to a loop inlet element, a loop outlet element and a fixed component of CDU along a matching direction. The HSPU includes a housing, a pump, a pump inlet element, a pump outlet element and a fastening component. The pump inlet element is in communication with the pump by passing through a first lateral wall of the housing. The pump outlet element is in communication with the pump by passing through the first lateral wall. The fastening component is arranged on the housing and configured to engage with the fixed component, to drive the hosing to move along the matching direction. Whereby, the pump inlet element and the loop outlet element are matched and connected, and the pump outlet element and the loop inlet element are matched and connected.