Electronic Cigarette Electrode Solder Recess Design
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Solution Overview
Problem
Existing electronic cigarette designs face issues with solder flow and firmness during welding, leading to unreliable connections and short service life due to the likelihood of hole plugging in the electrode's through hole.
Innovation Solution
An atomization member with an electrode featuring a connecting hole and a solder accommodating recess, where the connecting pin is inserted into the hole and extends into the recess, allowing for secure soldering and reducing the likelihood of solder flow, resulting in a firm and long-lasting connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a through hole is provided in the electrode for welding the connecting pin, then the electrical connection is achieved, but the through hole is easy to be plugged by solder tin when the lead of the electric heating wire is welded
Solution Approach 1:
The electrode is divided into two functional parts: a through hole for the connecting pin and a separate accommodating recess for solder. This segmentation prevents solder from entering the through hole while still enabling reliable electrical connection, resolving the contradiction between connection reliability and welding convenience.
Solution Approach 2:
The accommodating recess acts as an intermediary structure that collects and contains solder during the welding process. It mediates between the welding operation and the through hole, preventing solder from plugging the through hole while ensuring complete soldering of the connecting pin.
2Ease of manufacture
If the through hole is made larger to avoid plugging, then solder flow is improved, but the welding becomes less firm and service life is shortened
Solution Approach 1:
The electrode structure provides different local qualities: the through hole maintains its original size for pin insertion, while the accommodating recess provides a localized area with different geometric characteristics to control solder flow. This local quality differentiation allows solder to flow properly without compromising the firmness of the welding connection.
3Reliability
If solder is used to fill the through hole completely, then the electrical connection is secure, but the solder blocks the air flow channel
Solution Approach 1:
The electrode structure segments the functions of electrical connection and air flow into separate regions. The through hole handles electrical connection while the accommodating recess handles solder containment, preventing solder from blocking the air flow channel while ensuring secure electrical connection.
Solution Approach 2:
The solder containment function is extracted from the through hole and placed into a separate accommodating recess. This extraction removes the harmful effect of solder blocking air flow while preserving the essential electrical connection function in the through hole.
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 ensures a firm welding process, reduces the likelihood of rosin joints, and enhances production convenience by maintaining solder in the recess, resulting in a longer service life and improved manufacturing efficiency.
Implementation Method 1
an electric heating element for atomizing the e-liquid
Implementation Method 2
at least part of the connecting pin is inserted into the connecting hole and forms a soldering connection with the electrode
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
An atomization assembly and an electronic cigarette. The atomization assembly comprises: an e-liquid storage body (1), an atomizing core (2), a connecting seat (3) and an electrode (4). The e-liquid storage body (1) is internally provided with an e-liquid storage cavity (a) for accommodating e-liquid. The atomizing core (2) comprises an electric heating element (22) having a connecting pin (221), and the electric heating element (22) is used for atomizing at least part of e-liquid supplied to the electric heating element (22) from the e-liquid storage cavity (a). The connecting seat (3) is connected to the e-liquid storage body (1). The electrode (4) is fixed on an end face of the connecting seat (3), and is provided with a connecting hole (41) and a solder accommodating recess (42). A hole opening at one end of the connecting hole (41) is located in the solder accommodating recess (42), and at least part of the connecting pin (221) is inserted into the connecting hole (41) and welded to the electrode (4). The atomization assembly has the advantages of being firm in welding, long in service life and convenient to produce.