Transceiver Cage Dual-Side Shielding Circuit Board

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Solution Overview

Problem

Conventional transceiver cages inefficiently utilize space due to the lack of shielding on one side of the circuit board, requiring an interspace to prevent solder or elements from contacting the device's interior.

Innovation Solution

A transceiver cage design featuring a main body with first and second shield housings, a top cover, and a bottom cover, which cooperatively surround receiving spaces to accommodate transceiver modules and provide comprehensive shielding, allowing the cage to be mounted on both sides of the circuit board without an interspace.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a conventional transceiver cage is mounted on one side of the circuit board without shielding on the other side, then the structure is simpler, but an interspace must be defined between the circuit board and device interior to prevent solder or elements from contacting the device

Engineering Contradiction:
Improvestructure simplicityVSAvoidspace utilization
Core Design Contradiction:
Device complexityVSVolume of moving object

Solution Approach 1:

The patent merges the circuit board mounting function with the electromagnetic shielding function into a single integrated transceiver cage assembly. The cage is designed to mount on both sides of the circuit board simultaneously, combining what were previously separate functions (one-sided mounting and separate shielding) into a unified structure that eliminates the need for additional interspace.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The transceiver cage transitions from a single-sided mounting structure to a dual-sided mounting structure by extending shielding walls vertically along both sides of the circuit board. This dimensional extension in the vertical direction allows the cage to effectively shield both sides of the circuit board, eliminating the need for horizontal interspace while maintaining structural integrity.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Reliability

If an interspace is defined between the circuit board and device interior to prevent contact, then solder or elements are prevented from contacting the device, but space within the device is wasted

Engineering Contradiction:
Improvecontact preventionVSAvoidspace efficiency
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The patent merges the protective function previously achieved by the interspace with the transceiver cage structure itself. The extended shielding walls of the cage perform the contact-prevention function that the interspace provided, allowing the interspace to be eliminated while maintaining the same level of protection against solder or element contact.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent extracts the protective function from the interspace and integrates it directly into the transceiver cage structure. By removing the need for the interspace while retaining its protective function through the cage's extended shielding walls, the design eliminates wasted space while maintaining reliability.

Inventive Principle:
Principle #2Taking out (Extraction)

3Object-affected harmful factors

If comprehensive electromagnetic shielding is provided on both sides of the circuit board, then electromagnetic interference is effectively shielded, but the transceiver cage structure becomes more complex

Engineering Contradiction:
Improveelectromagnetic interference shieldingVSAvoidcage structure complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent merges the shielding functions for both sides of the circuit board into a single integrated cage structure. Rather than using separate shielding components for each side, the design uses continuous shielding walls that extend vertically along both sides, combining multiple shielding functions into one unified structure that reduces overall complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The transceiver cage is designed as a universal structure that simultaneously performs multiple functions: mounting the circuit board, providing electromagnetic shielding on both sides, and preventing contact between solder/elements and the device interior. This multi-functionality reduces the need for additional separate components, thereby reducing overall structural complexity despite comprehensive shielding.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 effectively shields electromagnetic interference and optimizes space usage by allowing the transceiver cage to be mounted on both sides of the circuit board, enhancing the assembly's efficiency within the device.

Implementation Method 1

The metal transceiver cage assembly functions to dissipate electrostatic buildup, and serves as an electromagnetic shield

Methodology Applied
Scientific EffectElectromagnetic shielding: Faraday Cage

Data Source

PatentUS7488212B2Transceiver cage
Publication Date: 2009.02.10 HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
  • US7488212B2 patent drawing
  • US7488212B2 patent drawing
  • US7488212B2 patent drawing

AI summary

A transceiver cage includes at least one first shield housing, at least one second shield housing, a top cover, and a bottom cover. The first shield housing includes a first upper wall, a first lower wall, and a pair of first sidewalls. The first upper wall, the first sidewalls, and the first lower wall cooperatively surround a first receiving space. The second shield housing stacked to the first shield housing, includes a second upper wall, a second lower wall, and a pair of second sidewalls. The top cover includes a top board, a rear board, and a pair of outer sideboards extending along the first sidewalls from the top board. The bottom cover includes a bottom board and a pair of inner sideboards lapping over the outer sideboards. The bottom cover is electronically connected with the top cover to receive the first shield housing and the second shield housing.