Vehicular Cleaner Nozzle and Intake Filtration Against Debris
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Solution Overview
Problem
Existing vehicular cleaners face issues with foreign matter entering the air blowing portion, vibration transmission to the air blowing portion, and water drops or foreign matter adhering to the nozzle tip or ejection port, which affect the cleaning efficiency and reliability.
Innovation Solution
A vehicular cleaner design featuring a filter at the intake port to prevent foreign matter entry, a vibration-proof portion using elastic members and a cage structure to absorb vibrations, and a nozzle with air ejection ports on both sides of the cleaning liquid ejection port to remove water drops and foreign matter from the nozzle tip.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If air is taken in from the intake port, then the air blowing portion can operate, but foreign matter may enter the inner side of the air blowing portion
Solution Approach 1:
A filter is introduced as an intermediary component between the intake port and the inner side of the air blowing portion. The filter allows air to pass through while blocking foreign matter, thus resolving the contradiction between maintaining air flow for operation and preventing foreign matter entry.
2Productivity
If the driving portion drives the air blowing portion, then the air blowing function is achieved, but vibration is transmitted to the air blowing portion body
Solution Approach 1:
A vibration-proof portion is provided beforehand between the driving portion and the air blowing portion body to cushion and absorb vibrations before they can be transmitted to the air blowing portion body, thus preventing operational instability.
3Productivity
If cleaning liquid is ejected from the nozzle, then the cleaning function is achieved, but water drops may remain at the tip end of the nozzle
Solution Approach 1:
Air ejection ports are provided to extract and remove water drops from the tip end of the nozzle using air flow, thereby eliminating the harmful effect of water drop reflection while maintaining the cleaning function.
4Productivity
If foreign matter adheres to the ejection port of the nozzle, then the nozzle can function, but the ejection port may be blocked when foreign matter is frozen
Solution Approach 1:
Air is ejected from the air ejection ports to prevent foreign matter from adhering to and freezing at the ejection port. This converts the potential harm of cold temperatures causing blockage into a beneficial air flow that actively clears the ejection port, maintaining reliability.
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 effectively prevents foreign matter from entering the air blowing portion, reduces vibration transmission, and efficiently removes water drops and foreign matter from the nozzle, enhancing the cleaning process and reliability.
Implementation Method 1
a filter which is provided at the intake port, prevents foreign matter from entering the air blowing portion, and allows air to pass through the filter
Implementation Method 2
a vibration-proof portion which prevents a vibration of the driving portion from being transmitted to the supporting portion
Implementation Method 3
two air ejection ports which eject air toward the cleaning surface of the cleaning object
Data Source
AI summary
This vehicular cleaner is provided with: an air blowing portion having an intake port through which air is taken in, the air being ejected to a cleaning object; and a filter which is provided at the air intake port, prevents foreign matter from entering the air blowing portion, and allows air to pass through the filter.


