Wireless Receiver Structure Using Segmented Metallic Casing

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Solution Overview

Problem

Conventional wireless receivers are too large due to the standard size of USB connectors and signal receiving modules, making them difficult to integrate into compact devices like wireless mice, increasing manufacturing costs and obstructing miniaturization.

Innovation Solution

A method involving a metallic casing with insertion and through holes, a positioning base with a mounting trough, and a housing that seals the receiving module, reducing the overall length and allowing for easy assembly and repair by hiding most of the receiving module within the casing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of moving object

If the standard size USB connector and signal receiving module are used, then the wireless receiver can be easily manufactured, but the overall length exceeds 4 cm occupying too much space

Engineering Contradiction:
Improvelength of wireless receiverVSAvoidease of assembly
Core Design Contradiction:
Length of moving objectVSEase of manufacture

Solution Approach 1:

The wireless receiver is divided into separate modular components: USB connector, signal receiving module, and casing. These segments can be manufactured independently using standard processes, then assembled together, allowing the overall length to be reduced while maintaining ease of manufacture through modular construction

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The signal receiving module is nested within the casing, and the USB connector is integrated into the assembly. This nesting arrangement allows components to be compactly arranged, reducing the overall length from exceeding 4 cm to within acceptable limits while maintaining standard manufacturing processes for each component

Inventive Principle:
Principle #7Nested doll (Nesting)

2Ease of operation

If the lengthwise size of signal receiving module and casing are added, then the receiving module can be properly enclosed, but the whole length exceeds 4 cm making integration difficult

Engineering Contradiction:
Improveease of integration into peripheral deviceVSAvoidvolume of wireless receiver
Core Design Contradiction:
Ease of operationVSVolume of stationary object

Solution Approach 1:

The components are arranged in a compact three-dimensional configuration rather than extending linearly. The casing provides vertical enclosure while the USB connector extends horizontally, utilizing different spatial dimensions to reduce the overall length and volume while maintaining proper enclosure and connectivity

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

3Volume of moving object

If the wireless receiver is made compact, then space in wireless mouse is reduced, but assembly and repair become more difficult

Engineering Contradiction:
Improvevolume occupied in wireless mouseVSAvoidease of disassembly and repair
Core Design Contradiction:
Volume of moving objectVSEase of repair

Solution Approach 1:

The wireless receiver is segmented into removable components (USB connector, signal receiving module, casing) that can be easily separated and reassembled. This modular segmentation allows the compact unit to be disassembled for repair or replacement without requiring complex tools or procedures, maintaining ease of repair despite reduced overall size

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The casing is designed with pre-formed openings and attachment features that facilitate easy access to internal components. Positioning bases and mounting structures are pre-configured to guide proper assembly, making both initial assembly and subsequent repair operations simple despite the compact form factor

Inventive Principle:
Principle #10Preliminary action

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 results in a wireless receiver that occupies less space, is easier to manufacture, and can be repaired by disassembling the housing without damaging the structure, reducing the length by 1.5 to 3 cm compared to conventional designs.

Implementation Method 1

forming a positioning base having a mounting trough by joining to the accommodating space of the metallic casing via an injection molding process

Methodology Applied
Scientific EffectInjection molding:

Data Source

PatentUS7975368B2Wireless receiver structure
Publication Date: 2011.07.12 DEXIN CORP
  • US7975368B2 patent drawing
  • US7975368B2 patent drawing
  • US7975368B2 patent drawing

AI summary

A structure of wireless receiver includes a metallic casing, a positioning base, a receiving module, and a housing. The metallic casing has a circumferential wall defining an accommodating space therein, and two opposite ends thereof formed with an insertion hole and a through hole in communication with the accommodating space. The positioning base has a mounting trough, and is disposed in the accommodating space of the metallic casing. The positioning base has two side ends being fixed to the circumferential wall. The mounting trough is in communication with the accommodating space and the through hole. The receiving module is disposed in the mounting trough of the positioning base via the through hole of the metallic casing. The housing is assembled to the through hole of the metallic casing, and the through hole is sealed by the housing to block the receiving module.