Elastic Contact Element With Locking Mechanism For Circuit Carrier Alignment

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Solution Overview

Problem

Existing connection elements for electrically connecting circuit carriers lack precise positioning and secure mechanical interlocking, leading to potential misalignment and instability during surface soldering and subsequent movement of the circuit carriers.

Innovation Solution

A connection element featuring a plastic holding body with an elastic contact element and a movable locking element that secures the contact element in a predetermined position for surface soldering, allowing for precise alignment and secure mechanical interlocking.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If the contact element is rigidly fixed in position, then manufacturing precision is improved, but mechanical stability during movement is worsened

Engineering Contradiction:
Improvepositioning precisionVSAvoidmechanical stability
Core Design Contradiction:
Manufacturing precisionVSReliability

Solution Approach 1:

The contact element is designed with elastic properties, transitioning from a rigid fixed state to a dynamic elastic state that can deform and absorb movements between circuit carriers, maintaining both positioning precision and mechanical stability

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The contact element's material parameters are changed to exhibit elastic behavior, allowing it to maintain predetermined positions during soldering while accommodating subsequent mechanical movements through elastic deformation

Inventive Principle:
Principle #35Parameter changes

2Reliability

If the locking element is added to secure the contact element, then reliability is improved, but device complexity is worsened

Engineering Contradiction:
Improvemechanical interlockingVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The locking element and holding body are integrated into a unified structure where the locking element is movably connected to the holding body, reducing the number of separate components while maintaining reliable mechanical interlocking

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The locking element serves multiple functions: it secures the contact element in the predetermined position during soldering, allows movement after soldering, and maintains mechanical interlocking throughout the device's operation

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 enables precise and secure electrical connections between circuit carriers by maintaining predetermined positions and distances during surface soldering and subsequent movements, enhancing reliability and stability.

Implementation Method 1

a contact element which is connected to the holding body and which is designed to be elastic

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS12328819B2Connection element for electrically connecting two circuit carriers
Publication Date: 2025.06.10 ROBERT BOSCH GMBH
  • US12328819B2 patent drawing
  • US12328819B2 patent drawing

AI summary

A connection element for electrically connecting a circuit carrier to another circuit carrier includes at least one solder connection for soldering onto the surface of the circuit carrier and a connection pin, which is electrically connected to the solder connection, for inserting into the other circuit carrier. The connection element has a holding body and a contact element which is connected to the holding body and which is designed to be elastic. The contact element has an end section, the solder connection being formed on the end section. The connection element has a locking element which is connected to the connection element in a movable manner back and forth between a locking position and a release position. The locking element is designed to limit the displacement of the contact element in the locking position and release an elastic movement of the contact element in the release position.