Jet Solder Level Jig With Multi-Pin Wave Height Confirmation

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Solution Overview

Problem

Conventional jet solder level confirmation jigs are unable to precisely determine when the jet wave of molten solder is either excessive or insufficient, requiring repetitive adjustments to achieve the desired level, which is time-consuming and inefficient.

Innovation Solution

A jet solder level confirmation jig with a system of pins of varying lengths and a notifying unit, such as light-emitting or vibrating members, that allows for precise adjustment and confirmation of the solder level by indicating contact or non-contact with the molten solder, powered by the jet soldering device to prevent battery consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If conventional jet solder level confirmation jigs are used, then the structure is simple, but the measurement precision is insufficient and cannot precisely determine when the jet wave is excessive or insufficient

Engineering Contradiction:
Improvesolder level measurement precisionVSAvoidjig structure complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The confirmation jig is divided into multiple pins with different lengths (first through fifth pins), each pin serving as an independent measurement element. This segmentation allows precise determination of solder wave level by observing which pins are contacted, resolving the contradiction between measurement precision and device complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention transitions from a single-point measurement approach to a multi-level measurement system by arranging pins at different heights. This dimensional approach enables precise solder level detection through vertical stratification, achieving high measurement precision without excessive complexity.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Productivity

If conventional adjustment methods are used, then the operation process is simple, but the productivity is low due to repetitive adjustments required to achieve desired level

Engineering Contradiction:
Improveadjustment efficiencyVSAvoidoperation time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The notification unit provides immediate visual feedback by lighting up when pins contact the solder wave. This feedback mechanism allows operators to quickly determine whether adjustment is needed and in which direction, eliminating repetitive trial-and-error adjustments and significantly improving productivity while reducing operation time.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

Multiple pins are pre-positioned at different heights to cover the full range of possible solder wave levels. This preliminary arrangement eliminates the need for iterative adjustments, as the correct level can be directly identified by observing which pins are contacted, thereby increasing productivity and reducing time loss.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If battery-powered notification units are used, then the device is portable, but reliability is reduced due to operation stoppages when battery power is consumed

Engineering Contradiction:
Improveoperation continuityVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The notification unit is powered by the jet soldering device itself rather than an external battery. The device uses its own operational power to drive the notification system, eliminating battery consumption issues and ensuring continuous reliable operation. The notification unit activates automatically when the jet soldering device operates, maintaining reliability without portability compromise.

Inventive Principle:
Principle #25Self-service

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

Enables precise and efficient adjustment of the solder level, reducing operation time and preventing solder adhesion failures by accurately confirming and maintaining the desired level, while also eliminating battery-powered operation stoppages.

Implementation Method 1

a notifying unit (30) for notifying the jet level; wherein the level confirmation unit (10) includes a plurality of pins (12)

Methodology Applied
Scientific EffectLight-emitting: Light Emitting Diode

Implementation Method 2

a notifying unit (30) for notifying the jet level; wherein the level confirmation unit (10) includes a plurality of pins (12)

Methodology Applied
Scientific EffectVibration: Vibration

Implementation Method 3

a jet solder processing unit (56) for jetting the molten solder (7) onto a printed circuit board (60)

Methodology Applied
Scientific EffectJet flow: Jet

Data Source

PatentEP3718668B1Tool for confirming jetting solder height, and method for handling said tool
Publication Date: 2022.03.02 SENJU METAL IND CO LTD
  • EP3718668B1 patent drawingFigure 1
  • EP3718668B1 patent drawingFigure 2
  • EP3718668B1 patent drawingFigure 3

AI summary

Provided are a jet solder level confirmation jig and a method of handling the same, which allow the level of the jet wave of the molten solder to be accurately confirmed. 1. A jet solder level confirmation jig 400 is provided with a level confirmation unit 10 for confirming a level of a jet wave of molten solder 7, a holding unit 20 that holds the level confirmation unit 10, a notifying unit 30 that notifies the level of the jet wave of the molten solder; and a bridge member 40 having a length so as to be able to form a bridge in an upper part of a jet solder bath 55 housed within a housing 501, the bridge member supporting the level confirmation unit 10 in the upper part of the jet solder bath 55. The notifying unit 30 is connected to a power supply unit 510 of a jet soldering device 500.