Electronic Pen Connector Housing for Miniaturized Load Distribution
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Solution Overview
Problem
Existing electronic pens with connector portions face challenges in miniaturization due to the complexity of their configuration, which also increases the load on the circuit board and makes them prone to pressure-related issues.
Innovation Solution
The electronic pen features a connector housing with a substantially triangular cross section, allowing the connector portion to be positioned without disrupting the axial center alignment, thus maintaining a simple configuration and distributing pressure evenly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a connector portion including housing and shell portion is mounted on the electronic pen, then the electronic pen can transmit and receive data and charge the battery, but the electronic pen becomes difficult to miniaturize and the configuration becomes complicated
Solution Approach 1:
The patent merges the housing and shell portion into a single integrated connector housing that directly houses the terminal portion. This eliminates the need for separate housing and shell components, simplifying the overall connector structure while maintaining data transmission and charging capabilities.
Solution Approach 2:
The connector housing serves multiple functions simultaneously: it houses the terminal portion for data transmission, provides structural support, enables battery charging through the same interface, and maintains axial center alignment with the electronic pen body. This multi-functionality reduces the need for additional components.
2Adaptability or versatility
If the connector portion is mounted on the electronic pen, then data transmission and charging are enabled, but the electronic pen is subjected to increased load from pen pressure and plug attachment
Solution Approach 1:
The terminal portion is positioned asymmetrically within the connector housing, with the contact portion located at an angle rather than at the center. This asymmetric positioning allows the connector housing to distribute mechanical loads more effectively, reducing stress concentration on the circuit board while maintaining proper electrical contact.
Solution Approach 2:
The connector housing acts as an intermediary structure that absorbs and distributes mechanical loads from plug attachment and pen pressure. By positioning the terminal portion within this robust housing, the load is transferred to the housing structure rather than directly to the circuit board, protecting the electronic components.
3Adaptability or versatility
If the axial center of the connector substrate deviates from the axial center of the electronic pen body, then the connector portion can be provided, but the configuration becomes complicated and the load on the circuit board increases
Solution Approach 1:
The connector housing is designed with its axial center aligned with the axial center of the electronic pen body, creating a balanced structural configuration. This axial center alignment ensures that loads are distributed evenly throughout the pen structure, preventing uneven stress concentration and simplifying the overall design.
Data Source
AI summary
Provided is an electronic pen including an electronic pen body portion, an electronic pen housing being a cylindrical body housing the electronic pen body portion, a connector portion including a connector substrate, and a terminal portion including a base portion raised from the connector substrate in a direction crossing an axial direction and a contact portion extended to a back end side from a position separated from the connector substrate on a back end surface of the base portion, and a connector housing being a cylindrical body housing the connector portion and connected to a back end side of the electronic pen housing. A cross section of the connector housing in a direction orthogonal to the axial direction is substantially triangular. An axial center of the connector substrate coincides with an axial center of the electronic pen body portion when the connector housing is attached to the electronic pen housing.