Electronic Pen Side Switch Structure for PCB Protection
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Solution Overview
Problem
Existing electronic pens with detachable side switches face issues such as cumbersome attachment and detachment, exposure of circuit boards leading to potential damage from touch or static electricity, and unsatisfactory user experience due to protruding switches and exposed electrodes.
Innovation Solution
An electronic pen design featuring a housing with a side opening, a board protection member covering the circuit board, and a side attachment member with movable push parts that allow secure and reliable operation of push switches while protecting the circuit board, even when the side switch is detached.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the side switch operation part is detachably attached to the main body of the position indicator, then the side switch can be attached or detached according to the frequency of use, but the circuit board becomes exposed when detached, leading to potential damage from touch or static electricity
Solution Approach 1:
The housing is divided into multiple parts: a main body housing, a circuit board housing that covers the circuit board, and a side switch operation part. The circuit board housing acts as a protective segment that remains attached to the main body even when the side switch is detached, preventing exposure of the circuit board while allowing the side switch to be independently removed.
2Strength
If the side switch operation part is fixed to the main body by tensioning screws, then the side switch unit can firmly be attached, but it becomes time-consuming and troublesome to attach and detach
Solution Approach 1:
The attachment mechanism transitions from a static fixed connection (tensioning screws) to a dynamic detachable connection. The side switch operation part is designed to be attachable and detachable from the main body through a simple operation, allowing the attachment state to change dynamically based on user needs while maintaining firm attachment when connected.
3Ease of operation
If the side switch is designed to protrude significantly from the main body, then some users prefer this configuration for ease of operation, but others want a side switch that does not protrude too much
Solution Approach 1:
The side switch operation part is designed with differentiated local qualities: it protrudes from the main body to provide adequate operational accessibility, but the protrusion is controlled and localized to specific areas. The circuit board housing covers the circuit board area while allowing the side switch to protrude only where needed for operation, creating different functional zones with appropriate characteristics.
Data Source
AI summary
Provided is an electronic pen that includes a circuit board including one or more push switches, a housing having a cylindrical body in which an electronic pen circuit including the circuit board is mounted, the housing including a side opening at a position corresponding to a range in which the one or more push switches are provided on the circuit board mounted at a predetermined position, a board protection member including a main body part and one or more depression parts, and a side attachment member including a plate part and one or more push parts. When one of the one or more push parts of the side attachment member is pushed down, a corresponding one of the one or more push switches on the circuit board is pushed down via a corresponding one of the one or more depression parts of the board protection member.