Bent Resistor Connections for Compact Assembly

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Solution Overview

Problem

Existing high-performance resistors face a trade-off between compactness and assembly friendliness, as a smaller spacing between resistor elements is desirable for a compact design but harder to assemble, while a larger spacing is more assembly-friendly but increases the structural size.

Innovation Solution

The resistor elements are configured with connections that have inner and outer portions bent at predetermined angles, allowing for double the spacing between connections on one side, facilitating assembly while maintaining the same structural size and using similar standard elements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the spacing between adjacent resistor elements is reduced to achieve a compact design, then the structural size is minimized, but the assembly process becomes more difficult

Engineering Contradiction:
Improvestructural sizeVSAvoidassembly friendliness
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The connection geometry is changed from a simple straight configuration to a bent configuration with inner and outer portions at different heights. This dimensional change allows the connections to be staggered vertically, effectively doubling the available lateral spacing for assembly operations while maintaining the same longitudinal spacing between resistor elements, thus resolving the contradiction between compact size and assembly ease

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

Solution Approach 2:

The connection is divided into distinct inner and outer portions with different spatial orientations. The inner portion is bent at a predetermined angle while the outer portion remains in a parallel plane, creating segmented connection zones that provide separate access paths for assembly tools and operations, thereby improving assembly friendliness without increasing overall structural size

Inventive Principle:
Principle #1Segmentation

2Reliability

If four different kinds of resistor elements are used to achieve proper connections, then the electrical connection requirements are met, but the device complexity increases

Engineering Contradiction:
Improveelectrical connectionVSAvoidnumber of resistor element types
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The connection geometry employs asymmetric bending where the inner portion is bent at a predetermined angle while the outer portion remains in a parallel plane. This asymmetric design creates a universal connection type that can accommodate all positioning requirements (start, end, and intermediate elements) through a single element design, eliminating the need for four different element types while maintaining reliable electrical connections

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

The bent connection design with inner and outer portions serves multiple functions simultaneously: it provides electrical connection, mechanical support, and universal compatibility for all resistor element positions. This multi-functional design allows a single type of resistor element to be used throughout the assembly, replacing the need for specialized start, end, left-hand, and right-hand intermediate elements

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

Data Source

PatentUS7932808B2Load resistor
Publication Date: 2011.04.26 WOBBEN ALOYS
  • US7932808B2 patent drawing
  • US7932808B2 patent drawing
  • US7932808B2 patent drawing

AI summary

A high-performance resistor includes resistor elements electrically connected in series and each having a first and second side and a first and second end. At the first end is a first connection and provided at the second end is a second connection for connecting the resistor elements. The first and second connections each have an inner portion and an outer portion. The inner portion of the first connection is bent at a predetermined angle with respect to the first side of the resistor element. The outer portion of the first connection is in a plane which is substantially parallel to the plane of the resistor element. The inner portion of the second connection is bent at a predetermined angle with respect to the second side of the resistor element. The outer portion of the second connection is in a plane which is substantially parallel to the plane of the resistor element.