Wiper Arm Nozzle Layout for Shorter Spray Path Cleaning
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Solution Overview
Problem
Conventional windshield wipers in vehicles often cause reduced visibility due to the spray path of cleaning agents, leading to traffic accidents and resource wastage, as they are not integrated with the wiper mechanism and require excessive cleaning fluid.
Innovation Solution
A wiper arm design with a nozzle and hose arrangement that delivers cleaning fluid directly to the windshield, minimizing interference with the driver's view and reducing fluid usage by integrating the nozzle onto the wiper arm's extension section.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If cleaning agent is sprayed through a nozzle under the bonnet to the upper middle part of the windshield, then the cleaning agent can reach the windshield, but the spray path is long causing large spray area and excessive cleaning agent usage
Solution Approach 1:
The patent combines the wiper arm structure with the cleaning agent delivery system by integrating a nozzle directly onto the wiper arm. This merging eliminates the separate bonnet-mounted nozzle system, shortens the spray path, reduces the spray area, and minimizes cleaning agent consumption while ensuring the agent is delivered precisely where needed on the windshield.
2Reliability
If cleaning agent is sprayed to the upper middle part of the windshield before wiper wiping, then the windshield can be cleaned, but the driver cannot see clearly the road conditions ahead causing traffic accidents
Solution Approach 1:
The patent applies local quality by positioning the nozzle at the tip of the wiper arm to spray cleaning agent precisely at the location where the wiper blade contacts the windshield. This localized spraying ensures that the cleaning agent is applied only to the area being wiped, avoiding excessive spray in the driver's line of sight while maintaining effective cleaning where needed.
3Quantity of substance
If the nozzle is connected to the extension section of the wiper arm end piece, then the spray path is shortened and cleaning agent usage is reduced, but the nozzle structure becomes more complex
Solution Approach 1:
The nozzle is integrated directly onto the extension section of the wiper arm end piece, combining two previously separate components into one unified structure. This merger reduces the overall system complexity despite adding functionality, as it eliminates the need for separate mounting brackets, extensions, or connection mechanisms between the wiper arm and nozzle.
Data Source
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AI summary
The present application relates to a wiper arm, which comprises a wiper arm body and a wiper arm end piece, the wiper arm end piece being fixedly connected to one end of the wiper arm body to hold a wiper blade, the wiper arm being further provided with a nozzle and a hose, wherein the nozzle is connected to an extension section of the wiper arm end piece towards the return side or the outward swing side of the wiper arm; the hose extends along the wiper arm body, and one end of the hose is connected to the nozzle to deliver a cleaning fluid to the nozzle. The arrangement of a nozzle on the wiper arm ensures that a cleaning fluid is quickly wiped off, the driver is given a clear field of vision, and the cleaning fluid usage may also be reduced.