Reflow Soldering Pressure Chamber Hood-Coupled Opening

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Solution Overview

Problem

Existing reflow soldering machines face challenges in easily accessing and maintaining the pressure chamber for visual inspection, cleaning, and maintenance, as the cover part is often mechanically connected to the base part, requiring multiple components to open and complicating operations.

Innovation Solution

A reflow soldering machine design where the cover part is motion-coupled to a covering hood, allowing the pressure chamber to be opened by opening the hood, with a hoist mechanism for lifting the cover part, enabling easy access and maintenance without separate mechanisms for the cover part, and allowing the transport unit to be easily removed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the cover part is mechanically connected to the base part, then the pressure chamber can be sealed properly, but the pressure chamber becomes difficult to open and access for maintenance

Engineering Contradiction:
ImproveEase of opening pressure chamberVSAvoidMechanical connection complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The pressure chamber is divided into two separate parts: the base part and the cover part. The cover part is detachably connected to the base part rather than being permanently fixed, allowing independent removal and access to the pressure chamber interior for maintenance and inspection while maintaining sealing when assembled.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cover part is designed to be dynamically removable and reattachable to the base part. This dynamic connection allows the pressure chamber to transition between a sealed state during operation and an open state for maintenance, eliminating the need for complex permanent mechanical connections.

Inventive Principle:
Principle #15Dynamics

2Productivity

If multiple components are required to open the pressure chamber, then the sealing can be maintained, but the operational time for maintenance increases

Engineering Contradiction:
ImproveMaintenance speedVSAvoidTime to open pressure chamber
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The pressure chamber is segmented into a base part and a cover part that can be separated. This segmentation allows the cover part to be quickly removed as a single component to access the interior, significantly reducing maintenance time compared to disassembling multiple interconnected parts.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cover part is pre-configured as a detachable component that can be quickly removed. This preliminary design decision enables rapid access to the pressure chamber interior without requiring sequential disassembly of multiple components, thereby reducing operational time for maintenance activities.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If the cover part has direct mechanical connection with the base part, then the structural stability is improved, but the access for visual inspection and cleaning is limited

Engineering Contradiction:
ImproveAccess to pressure chamberVSAvoidStructural stability
Core Design Contradiction:
Ease of operationVSStrength

Solution Approach 1:

The pressure chamber is divided into a base part and a cover part that can be detached. This segmentation provides wide access to the interior for visual inspection and cleaning when the cover part is removed, while maintaining structural stability when the parts are assembled and sealed together.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The connection between the cover part and base part is designed to be dynamic rather than fixed. The cover part can be detached to provide full access for inspection and cleaning, then reattached to restore structural integrity and sealing, combining the benefits of both accessibility and structural stability.

Inventive Principle:
Principle #15Dynamics

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

Facilitates easier and faster maintenance and setup by allowing the pressure chamber to be opened with a single component, reducing operational time and minimizing mechanical interference with the temperature profile during soldering.

Implementation Method 1

the cover part (44) is arranged on a covering hood (25) of the reflow soldering machine (10) in a vertically movable fashion, in particular that the cover part (44) can be lifted by a hoist mechanism (45)

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Implementation Method 2

it is possible to provide a decompression chamber or vacuum chamber in the soldering zone and to configure it such that the soldering process in the vacuum chamber utilizes decompression well below the atmospheric pressure. This causes the removal of gas- and air bubbles

Methodology Applied
Scientific EffectVacuum: Vacuum

Implementation Method 3

the exterior of the cover part and/or base part comprise heating elements with which the cover part and/or base part, and thus also the pressure chamber, are heated

Methodology Applied
Scientific EffectHeating: Heating

Data Source

PatentUS12402256B2Reflow soldering machine for continuously soldering of soldering goods
Publication Date: 2025.08.26 ERSA GMBH
  • US12402256B2 patent drawing
  • US12402256B2 patent drawing
  • US12402256B2 patent drawing

AI summary

The invention concerns a reflow soldering machine for continuously soldering of soldering goods in a process channel along a process direction, whereby the process channel comprises at least one pre-heating zone, at least one soldering zone, and at least one cooling zone, whereby the soldering zone comprises a pressure chamber comprising one base part and one cover part opposite the base part and that can be raised when the reflow soldering machine is operating, wherein the process channel can be covered by at least one covering hood that can be opened, and wherein the cover part is motion-coupled to the covering hood in such a way that when the covering hood is opened, the cover part is also taken along by the covering hood.