Rear Door Camera Cleaning Nozzle Nesting
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Solution Overview
Problem
Existing camera cleaning devices for vehicle rear doors inefficiently direct washing water, leading to partial misdirection and reduced effectiveness in cleaning the lens, while also exposing the jet nozzle to mechanical damage and compromising the vehicle's appearance.
Innovation Solution
A camera cleaning device with a jet nozzle positioned above the lens and a garnish that redirects dispersed washing water, ensuring a higher proportion reaches the lens and protecting the nozzle from rearward exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the jet nozzle is exposed on the outer face of the outer panel, then the jet nozzle can directly jet washing water toward the lens, but the jet nozzle spoils the appearance of the rear door and is not protected against mechanical influences
Solution Approach 1:
The jet nozzle is nested within the garnish structure, specifically positioned in a recessed space between the outer panel and the garnish. This nesting arrangement protects the jet nozzle from mechanical damage while maintaining its washing water jetting function, as the garnish acts as a protective housing that does not interfere with the nozzle's operational capability
Solution Approach 2:
The garnish serves as an intermediary element between the jet nozzle and the external environment. It mediates the conflict by providing mechanical protection and aesthetic coverage while allowing the jet nozzle to function through controlled openings, thus protecting the nozzle from direct mechanical influences and appearance spoilage
2Device complexity
If the jet nozzle jets washing water dispersedly, then the structure is simple, but the washing water cannot be directed accurately toward the lens and is not used effectively
Solution Approach 1:
The garnish is designed with specific local geometric features, including an inclined lower end and a front-side surface positioned to intercept dispersed washing water. These local structural qualities enable the garnish to reflect specific portions of the dispersed water flow onto the lens, improving water utilization efficiency without requiring a complete redesign of the jet nozzle structure
Solution Approach 2:
The dispersed nature of the washing water jet, which initially appears to be a deficiency causing inaccurate targeting, is converted into a benefit by using the garnish's reflective surface. The garnish captures and redirects the dispersed water streams onto the lens, transforming the scattered water flow into an effective cleaning mechanism while maintaining the simple jet nozzle structure
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 efficiently cleans the camera lens by optimizing water distribution and protecting the jet nozzle from mechanical influences, enhancing both cleaning efficacy and aesthetic integrity.
Implementation Method 1
the surface on the front side of the lower end of the garnish in the vehicle front-rear direction faces the jet nozzle such that a part of the washing water dispersedly jetted by the jet nozzle is reflected by the surface
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
A vehicle includes: a vehicle rear door (13) including an outer panel (15) constituting an outer surface of the vehicle rear door (13); a camera (25, 55) configured to capture an image of a subject placed behind the vehicle, the camera (25, 55) being fixed to the outer panel (15); and a camera cleaning device (50) including: a jet nozzle (30, 56) being placed above a lens (27) of the camera (25, 55), the jet nozzle (30, 56) being configured to dispersedly jet washing water toward the lens (27); and a garnish (20) fixed to the outer panel (15) so as to be placed on a rear side of the outer panel (15) in a vehicle front-rear direction, wherein the jet nozzle (30, 56) is disposed between the outer panel (15) and the garnish (20).