Electronic Cigarette Bottom Cover Assembly for Leak-Free Refilling
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Solution Overview
Problem
Existing electronic cigarettes with top or bottom oil-refilling structures are complex to operate, often requiring disassembly and are prone to oil leakage, affecting user experience.
Innovation Solution
An electronic cigarette design featuring an upper-cover and lower-cover assembly interconnected to form an oil-storing chamber, with a connecting element and sealing element that allows for convenient oil refilling and prevents leakage, utilizing a through hole and oil-refilling hole configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If top oil-refilling structure is adopted, then oil can be refilled, but the structure becomes complex requiring disassembly of upper assembly or heating assembly
Solution Approach 1:
The patent extracts the refilling function from the main body by providing a detachable bottom cover assembly. The bottom cover can be separated from the housing to expose the oil refilling hole, allowing users to refill oil without disassembling the heating assembly or other critical components. This isolation of the refilling operation to a separate detachable component resolves the contradiction between ease of refilling and structural complexity.
Solution Approach 2:
The device is segmented into distinct functional modules: a fixed housing containing the heating assembly, and a detachable bottom cover assembly containing the oil reservoir and refilling mechanism. This segmentation allows the refilling function to be accessed independently without affecting the integrity or complexity of the main heating structure.
2Device complexity
If bottom oil-refilling structure is adopted, then structure is simplified, but oil leakage and operational inconvenience occur
Solution Approach 1:
A sealing element is introduced as an intermediary component between the bottom cover and the housing. This sealing element prevents oil leakage at the connection interface while allowing the bottom cover to remain detachable for refilling. The sealing mechanism resolves the contradiction by providing reliable sealing without requiring permanent fixation or complex sealing structures.
Solution Approach 2:
The patent employs a flexible sealing element (likely a gasket or O-ring) at the bottom cover interface. This flexible component conforms to the mating surfaces and prevents oil leakage while maintaining the simplicity of the overall structure. The thin film sealing approach provides reliable leakage prevention without adding mechanical complexity.
3Ease of operation
If detachable bottom cover is used, then refilling is convenient, but additional disassembly steps are required
Solution Approach 1:
The patent merges the oil reservoir, bottom cover, and sealing elements into a single integrated bottom cover assembly that detaches as one unit. This consolidation means users only need to remove one component rather than multiple separate parts, simplifying the refilling operation while maintaining accessibility to the oil reservoir.
Solution Approach 2:
The bottom cover assembly is pre-configured with the oil refilling hole and sealing elements in the correct positions. When detached, the refilling hole is immediately accessible without requiring further disassembly or manipulation of internal components. This preliminary arrangement of components eliminates unnecessary intermediate steps in the refilling process.
Data Source
AI summary
The disclosure provides an electronic cigarette, wherein the electronic cigarette comprises an upper-cover assembly and a lower-cover assembly. The upper-cover assembly and the lower-cover assembly are cooperated to together form an oil-storing chamber. The lower-cover assembly comprises a connecting element, a bottom cover and a sealing element detachably connected to the bottom cover. One end of the connecting element is connected with the bottom cover, and the other end of the connecting element is connected with the upper-cover assembly. The bottom cover defines an oil-refilling hole. The connecting element defines a through hole communicating with both the oil-refilling hole and the oil-storing chamber. When the sealing element is connected with the bottom cover, the sealing element extends through the oil-refilling hole and is accommodated in the through hole. The electronic cigarette of the present disclosure has a simplified structure and is able to be refilled with oil conveniently, avoiding oil-leakage.


