Non-Contact Angle Detection for Flexible Circuit Boards
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Solution Overview
Problem
In the packing process of electronic products, accurately measuring and screening the bend angle of flexible circuit boards is challenging due to the lack of efficient and precise methods for angle detection.
Innovation Solution
An angle detecting device comprising a fixing member, a non-contact range finder, and a base, where the non-contact range finder, such as a laser range finder, measures the distance between the bent portions of the circuit board to determine if it falls within a preset range, allowing for accurate detection of the bending angle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional contact-based measurement methods are used to measure the bend angle of flexible circuit boards, then the measurement process becomes complex and time-consuming, but the measurement precision may be sufficient
Solution Approach 1:
The patent replaces traditional contact-based mechanical measurement methods with a non-contact optical measurement system using a laser range finder. The laser range finder emits laser beams to measure distances between bent portions of the circuit board without physical contact, thereby simplifying the measurement process and increasing detection speed while maintaining measurement accuracy
Solution Approach 2:
The patent introduces a laser range finder as an intermediary device between the operator and the circuit board. This intermediary uses optical fields to transmit measurement information, eliminating the need for direct mechanical contact and complex manual measurement procedures, thus improving both speed and simplicity
2Measurement precision
If traditional contact-based measurement methods are used, then the measurement process is complex, but the device structure remains relatively simple
Solution Approach 1:
The patent substitutes mechanical measurement tools with an optical measurement system. The laser range finder uses light fields instead of mechanical contact to measure distances, providing high precision bend angle detection while keeping the device structure relatively simple through the use of standardized optical components
3Productivity
If non-contact optical measurement methods are implemented, then detection speed and precision are improved, but device complexity increases
Solution Approach 1:
The patent designs the detection device with universal components that can serve multiple functions. The laser range finder not only measures distances but also provides positioning information, while the processing unit handles both data calculation and control functions, reducing overall system complexity despite the advanced measurement capabilities
Solution Approach 2:
The patent merges multiple functions into integrated components. The processing unit combines distance calculation, angle computation, and preset value comparison in a single module. The fixing member integrates positioning and stabilization functions, reducing the number of separate components and simplifying the overall device structure
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 provides a convenient, fast, and accurate method for detecting the bending angle of flexible circuit boards, facilitating their installation in electronic products by ensuring precise alignment.
Implementation Method 1
The non-contact range finder 20 detects a distance L between the second connecting portion 202 and the non-contact range finder 20
Implementation Method 2
calculate a distance between the detected target (i.e., the second connecting portion 202) and the non-contact range finder 20 according to a transmission speed of the ranging transmission signal, a transmission speed of the ranging return signal, a emitting time when the ranging transmission signal is emitted, and a receiving time when the ranging return signal is received
Data Source
AI summary
An angle detecting device for detecting a bending angle of an element. The element comprises a first connecting portion and a second connecting portion bent relative to the second connecting portion. The angle detecting device comprises a fixing member, a non-contact range finder and a base. The fixing member comprises a first fixing portion and a second fixing portion. The fixing member and the non-contact range finder is mounted on the base. The first fixing portion cooperates with the second fixing portion to fix the first connecting portion. The non-contact range finder faces the second connecting portion to detect a distance between the second connecting portion and the non-contact range finder, and determine whether the distance is within a preset range. An angle detecting method using the above angle detecting device is also provided.