Magnetic Button Assembly for Electronic Cigarette Battery Box
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Solution Overview
Problem
Current electronic cigarettes have complex and bulky button structures that are difficult to assemble, prone to uneven strength or failure, leading to a short service life and inconvenience in carrying.
Innovation Solution
The electronic cigarette design incorporates a button assembly with magnets and an elastic element, where a first magnet in the casing attracts a second magnet connected to the PCB, simplifying assembly, reducing size, and enhancing stability, and an elastic element improves hand feel and prevents key sticking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a traditional big button structure is used in the battery box, then the button can provide sufficient pressing force, but the structure becomes complex and the assembly becomes tedious
Solution Approach 1:
The patent replaces the traditional mechanical button structure with a magnetic field-based system. The first magnet in the button assembly interacts with the second magnet on the PCB through magnetic attraction, eliminating the need for complex mechanical linkages, springs, and physical contact mechanisms while maintaining sufficient pressing force for reliable electrical contact.
Solution Approach 2:
The patent changes the fundamental operating parameter from mechanical force transmission to magnetic field interaction. By utilizing magnetic field strength and attraction force as the controlling parameter, the system achieves reliable button functionality with a simplified structure that requires no mechanical assembly of multiple moving parts.
2Force
If a traditional big button structure is used in the battery box, then the button can provide sufficient pressing force, but the assembly occupies a large space
Solution Approach 1:
The magnetic field interaction system eliminates the need for bulky mechanical components such as long pressurization paths, multiple linkages, and large contact mechanisms. The magnetic force can effectively act over small distances, enabling a compact button assembly that exerts sufficient force while occupying minimal space within the battery box.
3Ease of manufacture
If a traditional big button structure is used in the battery box, then the button can be easily assembled, but the button often gets stuck, oblique, or shaky resulting in uneven strength
Solution Approach 1:
The magnetic field-based button system eliminates mechanical friction, wear, and misalignment issues inherent in traditional mechanical buttons. The magnetic attraction between the first and second magnets provides stable, consistent force without the problems of getting stuck, becoming oblique, or shaking, thereby significantly improving reliability while maintaining ease of assembly.
4Force
If a traditional big button structure is used in the battery box, then the button can provide sufficient pressing force, but the button has a short service life
Solution Approach 1:
The magnetic field interaction system replaces mechanical contact and friction with non-contact magnetic forces, eliminating wear and degradation of mechanical components. This results in a button assembly with significantly extended service life, as magnets have no moving parts that can wear out, stick, or fail mechanically, while maintaining consistent pressing force throughout the device's operational lifetime.
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
This design enhances the button's assembly flexibility, prolongs its service life, reduces the device's size, and makes it more convenient to carry by using magnetic attraction and an elastic element for improved functionality.
Implementation Method 1
the second magnet not only can control the contact terminal on the PCB as a main button, but also can attract the first casing so that the first casing does not fall off
Implementation Method 2
an elastic element improves hand feel and prevents key sticking
Data Source
AI summary
The present disclosure provides an electronic cigarette. The electronic cigarette includes a battery box. The battery box includes a support, a Printed Circuit Board (PCB) accommodated in the support, and a button assembly connected to the support. The button assembly includes a first casing, a first magnet arranged in the first casing, and a second magnet abutting against the first magnet. The support defines a limiting hole configured for accommodating the second magnet. The second magnet is connected to the PCB. The electronic cigarette is simple in overall structure and is convenient to carry, and the button has a long service life.