Rear Camera Module Integrated with Wiper Shaft Cover

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Solution Overview

Problem

Existing rear camera systems for vehicles require complex installation and often compromise the exterior design due to the need for exposed camera lenses and mounting holes, which can degrade the vehicle's appearance and create vulnerabilities for water ingress.

Innovation Solution

A rear camera device that integrates the camera module within a module cover attached to the rear window, utilizing a rotational shaft of the rear wiper and watertight pads to simplify installation and maintain a sleek exterior design by hiding the camera module and lens, with a grommet allowing the shaft to rotate and cables to transmit control signals through a secure pathway.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If the rear camera module is mounted externally on the vehicle rear side, then the camera can photograph the rear-view image, but the exterior design is compromised and the installation becomes complex with exposed mounting holes

Engineering Contradiction:

Improveexterior designVSAvoidinstallation complexity

Core Design Contradiction:

ShapeVSDevice complexity

Solution Approach 1:

The rear camera module is merged with the module cover that is already attached to the rear window for the rear wiper system. The camera module is disposed within the space defined by the module cover, combining the camera mounting function with the existing wiper assembly structure, thereby eliminating separate mounting holes and simplifying installation while maintaining sleek exterior design

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The module cover serves multiple functions: it acts as the mounting structure for the rear wiper rotational shaft and simultaneously provides housing and protection for the rear camera module. This multi-functional design eliminates the need for separate camera mounting structures and reduces overall system complexity

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Ease of manufacture

If the module cover is coupled to the rear window with mounting holes, then the camera module can be installed, but water ingress becomes a vulnerability

Engineering Contradiction:

Improveinstallation easeVSAvoidwater ingress

Core Design Contradiction:

Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

Watertight pads are interposed between the module cover and rear window, and between the fastening nut and rear window. These flexible sealing elements create watertight barriers that prevent water ingress through the mounting interface while allowing the mounting structure to remain simple and easy to manufacture

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The watertight pads act as intermediary sealing elements between the rigid mounting structures (module cover and rear window). These pads provide the necessary seal without requiring complex gasket systems or elaborate sealing mechanisms, maintaining ease of manufacture while preventing water ingress

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS10160402B2Rear camera device for vehicle and module cover thereof

Publication Date: 2018.12.25 HYUNDAI MOBIS CO LTD

AI summary

Disclosed is a rear camera module for a vehicle. The disclosed rear camera module includes a module cover mounted to a rear side of the vehicle such that a rotational shaft of a rear wiper is rotatably coupled to the module cover and a rear camera module installed at the module cover to photograph a rear-view image of the vehicle. The rear camera module can be easily and conveniently installed at the rear side of the vehicle.