Heat Dissipation and Power Supply Module with Segmented Copper Bar
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Solution Overview
Problem
The centralized power supply architecture in data centers is prone to excessive temperature due to electromagnetic interference from large electric currents, which affects the operation of fans and leads to inadequate heat dissipation.
Innovation Solution
A heat dissipating and power supply module that includes a fan without Hall elements, a U-shaped first copper bar half-encircling the fan, and a second copper bar forming a closed loop with the first copper bar to reduce magnetic induction intensity and mitigate electromagnetic interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a U-shaped copper bar is used for centralized power supply, then power supply efficiency is improved, but electromagnetic interference affects fan operation and heat dissipation capability deteriorates
Solution Approach 1:
The patent divides the U-shaped copper bar into two separate copper bars (first copper bar and second copper bar) that run in opposite directions. This segmentation breaks the continuous electromagnetic field into separate paths, reducing the overall electromagnetic interference affecting the fan while maintaining the power supply function.
Solution Approach 2:
The patent introduces a spatial dimension by routing the two copper bars in opposite directions (one forward, one backward) relative to the fan. This dimensional arrangement creates opposing electromagnetic fields that partially cancel each other out, reducing net interference with the fan's Hall elements while preserving power delivery capability.
2Power
If large electric current passes through copper bar, then power supply capability is improved, but electromagnetic field formation interferes with Hall elements and fan speed decreases
Solution Approach 1:
By splitting the single high-current copper bar into two separate copper bars carrying current in opposite directions, the patent segments the electromagnetic field generation. Each bar produces its own electromagnetic field, but the opposing directions cause partial cancellation, reducing net interference with the fan's Hall effect sensors and maintaining fan rotational speed.
Solution Approach 2:
The two copper bars act as intermediaries that mediate between the power supply requirement and the fan operation. By routing them in opposite directions, they create opposing electromagnetic fields that interfere with each other constructively (cancellation), thereby protecting the fan from excessive electromagnetic interference while still delivering the required power.
3Use of energy by moving object
If fan speed decreases due to electromagnetic interference, then power consumption is reduced, but heat dissipation capability deteriorates and temperature increases
Solution Approach 1:
The patent segments the power supply path into two separate copper bars running in opposite directions. This segmentation reduces electromagnetic interference with the fan, allowing the fan to maintain higher rotational speed and effective heat dissipation capability, thereby preventing temperature increase in the power-supply shelf.
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
The solution effectively maintains the power-supply shelf within normal temperature ranges, enhancing the working stability of the power-supply shelf by reducing the impact of electromagnetic interference on fan operation.
Implementation Method 1
When a very large electric current passes through the U-shaped copper bar, an electromagnetic field is formed. However, the fan has many Hall elements, and the Hall elements are easily interfered in the electromagnetic field
Implementation Method 2
by using the technical solution in which the wind exiting side of the at least one fan faces the power-supply shelf where the module is located; the first copper bar is of a U-shaped structure and half encircles the fan; and the second copper bar is electrically connected to the two ends of the first copper bar, and the first copper bar and the second copper bar combine to form a closed loop that fully encircles the fan
Implementation Method 3
a power module, having a transformer, and the transformer being configured to convert a 220V alternating current from an inputting line into a 12V direct current
Data Source
AI summary
The present application discloses a heat dissipating and power supply module and a power-supply shelf. The module includes: at least one fan, wherein a wind exiting side of the fan faces a power-supply shelf where the module is located; a first copper bar of a U-shaped structure and half encircling the fan; and a second copper bar electrically connected to two ends of the first copper bar, wherein the first copper bar and the second copper bar combine to form a closed loop that fully encircles the fan. The present application may maintain the power-supply shelf within the range of the normal temperatures, to improve the working stability of the power-supply shelf.