Pen Pressure Module Holder Wiring for Assembly Accuracy
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional pen pressure detecting modules face challenges with accuracy in assembly, durability, and maintaining electrical connectivity under high pressure, particularly due to the need for precise attachment of metallic terminals and increased complexity in manufacturing, which complicates the miniaturization of electronic pens for portable devices.
Innovation Solution
The pen pressure detecting module incorporates a holder with a retaining portion for the pressure sensing unit and an engaging portion for the circuit board, featuring wiring on the holder's surface for electrical connection, eliminating the need for separate metallic terminals and allowing for easier and more accurate assembly, while ensuring strength against applied pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate metallic terminals are used for electrical connection, then electrical connectivity is secured, but assembly accuracy deteriorates and manufacturing complexity increases
Solution Approach 1:
The patent merges the terminal and holder into a single integrated structure. The terminal is formed as an integral part of the holder body, eliminating the need for separate metallic terminals and their associated assembly steps. This integration ensures precise electrical connection positions while simplifying manufacturing and improving assembly accuracy.
Solution Approach 2:
The holder structure serves multiple functions simultaneously: it provides mechanical support for the pressure sensing unit, provides electrical connection terminals, and provides mounting engagement with the circuit board. This multi-functionality eliminates the need for separate dedicated terminal components while maintaining reliable electrical connectivity.
2Reliability
If separate metallic terminals are used for electrical connection, then electrical connectivity is secured, but device complexity increases
Solution Approach 1:
The terminal and holder are merged into a single integrated component, reducing the total number of parts. This eliminates the need for separate terminal assembly steps, soldering operations, and alignment procedures, thereby simplifying manufacturing and reducing device complexity while maintaining electrical connectivity.
Solution Approach 2:
The holder is designed to perform multiple functions: mechanical retention of the pressure sensing unit, electrical connection via integrated terminals, and mounting to the circuit board. This multi-functionality consolidates what would otherwise require multiple separate components, reducing manufacturing complexity.
3Volume of moving object
If the pen pressure detecting module is miniaturized, then portability is improved, but durability under high pressure deteriorates
Solution Approach 1:
The integration of the terminal into the holder creates a more compact structure with fewer discrete components. This consolidation reduces the overall volume of the pressure detecting module while maintaining structural integrity and pressure resistance through the unified design.
Solution Approach 2:
The holder is made from a resin material that provides both compactness and sufficient mechanical strength to withstand high pen pressures. The integrated terminal structure distributes stress effectively throughout the holder body, maintaining durability despite the reduced size of the module.
4Manufacturing precision
If precise attachment of metallic terminals is required, then electrical connection accuracy is improved, but assembly difficulty increases
Solution Approach 1:
By merging the terminal with the holder, the patent eliminates the need for precise separate attachment of metallic terminals. The electrical connection points are inherently positioned with high accuracy through the integral structure, removing the assembly difficulty associated with aligning and securing separate terminal components.
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 solution simplifies the assembly process, enhances the accuracy of electrical connections, and maintains the module's strength under high pressure, facilitating the miniaturization of electronic pens for portable devices.
Implementation Method 1
the pressure sensing unit captures the pen pressure (pressure) applied to the pen tip as a change in an electrical characteristic quantity (electrical information) such for example as a capacitance or an inductance
Implementation Method 2
the pressure sensing unit captures the pen pressure (pressure) applied to the pen tip as a change in an electrical characteristic quantity (electrical information) such for example as a capacitance or an inductance
Implementation Method 3
The electromagnetic induction type electronic pen is configured to transmit a pressure applied to a tip end portion (pen tip) of a core body as a change in the resonance frequency of the resonance circuit to the position detecting device
Data Source
Figure 1
Figure 2
Figure 3
AI summary
To provide a pen pressure detecting module that enables accuracy of assembly of parts to be ensured easily and which can maintain strength of connection to a printed board against a high applied pen pressure. The pen pressure detecting module includes: a pressure sensing unit configured to output electrical information corresponding to a detected pressure through electrodes; and a holder configured to retain the pressure sensing unit and electrically connect the retained pressure sensing unit to a circuit board having a circuit detecting the applied pressure on a basis of the electrical information output from the pressure sensing unit. The holder includes a retaining portion retaining the pressure sensing unit and an engaging portion engaging with the circuit board, and the holder has wiring formed on a surface of the holder, the wiring extending from the retaining portion to the engaging portion, and the electrodes of the pressure sensing unit are electrically connected to the circuit board via the wiring when the holder and the circuit board engage with each other.