Charging Gun Cap Structure with Resilient Push Mechanism
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Solution Overview
Problem
Conventional protecting caps for electric vehicle charging guns are prone to degradation due to heat and are difficult to remove, leading to potential damage from dust and water exposure.
Innovation Solution
A protecting cap structure comprising a cover, push plate, fixing seat, and resilient elements that enhance water and dust resistance while allowing easy removal, utilizing a gland propped by resilient elements for improved protection and usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the protecting cap is made compatible with or smaller than the form factor of the plug, then it provides adequate coverage, but it becomes difficult to remove and may break under excessive force
Solution Approach 1:
The protecting cap is divided into a cover portion and a gland portion that can move relative to each other. The gland is mounted on the cover and can slide along the cover's axis, allowing the gland to protrude for easy grasping and removal while the cover remains securely fitted on the plug.
Solution Approach 2:
The resilient element acts as an intermediary between the gland and the cover, providing a pushing force that enables the gland to move outward. This intermediary mechanism allows easy removal without requiring excessive force on the cover itself, resolving the contradiction between secure fit and easy removal.
2Reliability
If the protecting cap is made of rubber for flexibility, then it provides good sealing, but it degrades due to heat from repeated insertion and extraction
Solution Approach 1:
The protecting cap is segmented into the cover and the gland, where the gland contains the resilient element. This segmentation allows the resilient element to bear the mechanical stress of repeated insertion and extraction through elastic deformation, while the cover maintains its sealing function without direct exposure to degrading forces.
Solution Approach 2:
The resilient element undergoes parameter changes (elastic deformation) during insertion and extraction cycles, absorbing mechanical stress and heat generation. This protects the cover material from degradation while maintaining sealing performance through the resilient element's adaptive properties.
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 provides enhanced water resistance, dust resistance, and ease of use by allowing the cover to be easily removed and securely closed, preventing damage to the charging gun plug.
Implementation Method 1
The at least one first resilient element is mounted in the containing groove, is mounted on the fixing seat, and pushes backward the push plate
Implementation Method 2
the resilient elements pushing forward the cover when the cover is to be removed
Data Source
AI summary
A protecting cap structure of a charging gun has a cover, a push plate, a fixing seat, at least one first resilient element, and a gland. The push plate is moveably mounted in a containing groove of the cover. The fixing seat, the first resilient element, and the gland are mounted in the containing groove. The first resilient element and the gland are respectively mounted on both sides of the push plate, and the first resilient element abuts and pushes the front side of the push plate. The protecting cap structure not only improves water resistance and dust resistance by the gland which is propped by the resilient element when the cover covers the plug of the charging gun, but also is easy to use because the resilient elements push forward the cover when the cover is to be removed.