Floating Metallized Element Assembly with Plateable Resin Networks

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Solution Overview

Problem

Current methods for achieving multiple distinct surface finishes on work pieces are costly and inefficient, often requiring additional operations and tooling, and fail to effectively create visually distinct metal finishes due to limitations in electroplating and deposition techniques.

Innovation Solution

A floating metallized element assembly and manufacturing method that uses a combination of plateable and non-plateable resins, with electroless plating and discrete current paths to create isolated electrical circuits, allowing for multiple metal finishes on a single work piece without secondary operations, by applying a non-plateable resin to prevent electroless layer deposition and using multi-shot injection molding to form networks and decorative regions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple components with different metal finishes are assembled to form the final product, then aesthetic variety is improved, but device complexity and manufacturing cost increase due to multiple operations and tooling

Engineering Contradiction:
Improveaesthetic varietyVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The work piece is segmented into multiple regions with different resin types (plateable and non-plateable) during the molding process. This segmentation allows different areas to receive different treatments - some areas are electroplated with metal finishes while others remain as non-plateable resin surfaces, creating aesthetic variety within a single integrated component rather than assembling multiple separate components.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention merges multiple functions into a single work piece: structural support, multiple surface finishes, and electrical circuit integration. By combining plateable and non-plateable resin regions in one molded component, the need to assemble multiple separate components with different finishes is eliminated, reducing device complexity while maintaining aesthetic variety.

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If masking and pre or post surface treatments are used to create variation in metal finish, then aesthetic variety is improved, but manufacturing cost and operation time increase

Engineering Contradiction:
Improveaesthetic varietyVSAvoidoperation time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The different resin types (plateable and non-plateable) are pre-formed during the initial molding process before electroplating. The non-plateable resin regions are already in place to prevent metal deposition in specific areas, eliminating the need for subsequent masking operations. This preliminary action saves significant time by integrating the surface differentiation step into the base molding process.

Inventive Principle:
Principle #10Preliminary action

3Productivity

If electroplating is applied to sections with different surface effects, then manufacturing efficiency is improved, but visual distinction of metal finishes deteriorates due to leveling characteristic

Engineering Contradiction:
Improvemanufacturing efficiencyVSAvoidvisual distinction of metal finishes
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The invention applies local quality by using non-plateable resin in specific regions to prevent electroplating in those areas. This creates permanent visual distinction between plated and non-plated regions, as the non-plateable resin maintains its original surface characteristics while plated regions receive metal coatings. The electroplating process can efficiently coat all plateable areas simultaneously, maintaining manufacturing efficiency while ensuring visual distinction through the inherent property differences of the resin materials.

Inventive Principle:
Principle #3Local quality

4Adaptability or versatility

If vacuum metallization or chemical vapor deposition is used to achieve different finishes, then aesthetic variety is improved, but performance and cost deteriorate due to thin metal layers and additional protective coatings

Engineering Contradiction:
Improveaesthetic varietyVSAvoidperformance
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The plateable resin acts as an intermediary substrate that enables efficient electroplating. Unlike vacuum metallization which deposits thin metal layers directly onto the base material, the plateable resin provides an ideal intermediate surface that promotes uniform, thick, and adherent metal coating through electroplating. This intermediary layer ensures both aesthetic variety (through controlled plating patterns) and performance (through robust, thick metal layers with excellent adhesion).

Inventive Principle:
Principle #24Intermediary (Mediator)

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 approach reduces manufacturing costs and enhances aesthetic flexibility by eliminating secondary operations while achieving visually distinct metal finishes without the need for additional tooling or labor-intensive processes, such as masking and painting.

Implementation Method 1

forming a plated decorative region on the front side of the work piece

Methodology Applied
Scientific EffectElectroless plating: Electroplating

Implementation Method 2

immersing the work piece in the aqueous solution and positively charging the anode and negatively charging the network and plated decorative region to form circuits

Methodology Applied
Scientific EffectElectroplating: Electroplating

Implementation Method 3

applying a non-plateable resin to prevent electroless layer deposition

Methodology Applied
Scientific EffectSurface passivation: Adsorption

Implementation Method 4

immersing the work piece in the aqueous solution and positively charging the anode and negatively charging the network and plated decorative region to form circuits

Methodology Applied
Scientific EffectIonic conduction: Conduction (electrical)

Data Source

PatentUS11326268B2Floating metallized element assembly and method of manufacturing thereof
Publication Date: 2022.05.10 LACKS ENTERPRISES INC
  • US11326268B2 patent drawing
  • US11326268B2 patent drawing
  • US11326268B2 patent drawing

AI summary

A floating metallized element assembly and method of manufacturing thereof are disclosed. The floating metallized element assembly includes a work piece of a plateable resin and a non-plateable resin including a front side and a back side. The work piece includes at least one plated decorative region on the plateable resin at the front side. The work piece also includes at least one network of the plateable resin at the back side. The work piece additionally includes a plurality of discrete current paths of the plateable resin extending from the at least one network to the at least one plated decorative region. The work piece also includes at least one non-plated decorative region of the non-plateable resin adjacent the at least one decorative region. Metal surfaces are adhered to and disposed on the at least one plated decorative region.