Rotating Tray Frame Structure for Server Power Supply Assembly

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Solution Overview

Problem

In large computing apparatuses like servers, the stacking of multiple power supply units interferes with the assembly and repair of the motherboard due to the need for additional converter boards, which occupy space and complicate the assembly process.

Innovation Solution

A frame structure comprising a main frame with recesses, a pivotally connected tray, and elastic elements that allow the tray to rotate between parallel and perpendicular positions, enabling the power supply units to be securely fastened without obstructing the motherboard during assembly or repair.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If power supply units are stacked in the server to save space, then space utilization is improved, but the assembly and repair of the motherboard becomes more difficult due to interference from converter boards

Engineering Contradiction:
Improvespace utilizationVSAvoidmotherboard assembly and repair
Core Design Contradiction:
Area of stationary objectVSEase of repair

Solution Approach 1:

The converter board is designed with a rotatable tray that can switch between a first position (parallel to the clapboard) for space-efficient stacking and a second position (perpendicular to the clapboard) for unobstructed motherboard access. This dynamic repositioning capability allows the same structure to serve both space-saving and ease-of-repair requirements at different times

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The power supply unit assembly is segmented into separate functional components: the main power supply unit, the converter board, and the rotatable tray. This segmentation allows the converter board to be independently positioned on the tray, enabling it to be rotated out of the way during motherboard assembly and repair operations, thus eliminating interference while maintaining compact stacking when needed

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If converter boards are extended over the locating range of power supply units, then power conversion function is achieved, but the assembly process becomes more complex requiring sequential assembly

Engineering Contradiction:
Improvepower conversion functionVSAvoidassembly process
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The rotatable tray enables the converter board to dynamically change its position relative to the power supply unit and motherboard. During assembly, the tray can be rotated to the second position to provide clear access to the motherboard, simplifying the assembly process. After assembly, the tray rotates to the first position to achieve compact stacking, thus reducing device complexity during operations while maintaining the required power conversion function

Inventive Principle:
Principle #15Dynamics

3Stability of the object's composition

If the tray is fixed in position, then stable fastening is achieved, but the ability to access electronic components for assembly and repair is reduced

Engineering Contradiction:
Improvetray fastening stabilityVSAvoidcomponent accessibility
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The tray is designed to be movable between two stable positions rather than fixed in one position. The elastic element provides snap-fit fastening that secures the tray stably in either the first position (for compact stacking) or the second position (for component access). This dynamic stability allows the tray to be firmly held when needed while still being easily repositionable when access is required

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The elastic element with fastening structure enables the tray to self-fasten to the main frame when pushed into the first position, eliminating the need for additional tools or members. The power supply unit itself pushes the elastic element during installation, causing the fastening structure to automatically engage with the fixing portion, thus achieving stable fastening through self-service

Inventive Principle:
Principle #25Self-service

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 allows for unobstructed assembly and repair of electronic components by rotating the tray out of the way, facilitating the placement and secure fastening of power supply units without tools, thus enhancing the convenience and efficiency of server assembly and maintenance.

Implementation Method 1

Each elastic element includes a first end and a second end, and the first end is fixed to an inside of the main frame; a distance is between the second end and the main frame, and the second end includes a fastening structure. When the tray is located in the first position, each fixing portion is located between each second end and the main frame. During a process that the power supply unit is placed into the main frame, the second end of each elastic element is pushed via the power supply unit, so that each fastening structure passes through the fixing portion of the tray located in the first position and the main frame to fix the tray.

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS9155218B2Electronic apparatus and frame structure thereof
Publication Date: 2015.10.06 WISTRON CORP
  • US9155218B2 patent drawing
  • US9155218B2 patent drawing
  • US9155218B2 patent drawing

AI summary

A frame structure of an electronic apparatus for containing a plurality of power supply units is disclosed. The frame structure includes a main frame, a tray, and at least one elastic element. The tray includes at least one fixing portion and is connected pivotally to the main frame to be in a first position or a second position. One end of each elastic element is fixed to the main frame, and the other end of each elastic element includes a fastening structure. When the tray is in the first position, each fixed portion is between the main frame and each elastic element. When the power supply units are placed into the main frame, each elastic element is pushed by the power supply units, and each fastening structure passes through the fixing portion and the main frame, for fixing the tray in the first position.