Video Camera Housing With Alignment Tab For Dome Replacement

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Solution Overview

Problem

Existing video cameras, particularly those used for security and surveillance, face challenges in easily replacing the camera dome, which can become damaged due to environmental conditions.

Innovation Solution

A housing configuration for video cameras that consists of multiple interlocking housing portions, including a top, mid, and bottom portion, facilitating easy assembly, installation, and replacement of the camera dome. The design features a circular and rounded exterior contoured wall with recessed features for alignment and gripping, along with an IR window ring and camera dome that can be easily swapped.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of repair

If the camera dome is made as a separate replaceable component, then the ease of repair is improved, but the device complexity increases due to additional housing portions and interlocking mechanisms

Engineering Contradiction:
Improveease of dome replacementVSAvoidhousing structure complexity
Core Design Contradiction:
Ease of repairVSDevice complexity

Solution Approach 1:

The housing is divided into multiple separable portions: a first housing portion, a second housing portion, and a third housing portion. The camera dome is integrated with one housing portion to form an assembly that can be independently removed and replaced. This segmentation allows the dome to be replaced without replacing the entire housing, improving repair ease while managing complexity through functional modularization.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The camera dome is nested within a housing portion to form an integrated assembly. The housing portions are designed to interlock and nest together, with alignment features that guide proper assembly. This nesting approach allows the dome assembly to be treated as a modular unit that can be replaced as a whole, simplifying the repair process despite the multi-component structure.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Ease of manufacture

If multiple housing portions are used to facilitate assembly, then the ease of manufacture is improved, but the manufacturing precision requirements increase due to alignment features

Engineering Contradiction:
Improveassembly easeVSAvoidalignment feature precision
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

Alignment tabs are provided on the housing portions with asymmetric geometries that correspond to matching recesses or features on adjacent portions. This asymmetric design provides built-in alignment guidance during assembly, ensuring proper orientation and positioning. The asymmetric features act as mechanical guides that reduce the precision requirements for other mating surfaces, as the alignment tabs automatically orient the components correctly during assembly.

Inventive Principle:
Principle #4Asymmetry

Data Source

PatentEP4367652B1Video camera with alignment feature
Publication Date: 2025.05.07 MOTOROLA SOLUTIONS INC
  • EP4367652B1 patent drawingFigure 1
  • EP4367652B1 patent drawingFigure 2A
  • EP4367652B1 patent drawingFigure 2B

AI summary

A video camera comprises a housing (102) configured of a top housing portion (104), a mid-housing portion (106) and a bottom housing portion (108). The top housing portion is configured as a circular and rounded exterior contoured wall (110) having an exterior recessed feature (112) formed along an edge (114). The mid-housing portion (106) is formed of an IR window ring (116) having an alignment tab (118) extending therefrom, the alignment tab being aligned and recessed within the exterior recessed feature (112) of the rounded exterior contoured wall (110) of the top housing portion (104), and the bottom housing portion (108) providing a camera dome (120) seated within and protruding from the IR window ring (116).