PCB-Mounted Control Connector for Cable-Free Compressor Assembly

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Solution Overview

Problem

The existing methods for connecting a frequency inverter to a hermetic compressor are inefficient, requiring multiple steps and cables, leading to increased production costs and time, and mechanical fastening with screws.

Innovation Solution

An electronic control connector with an input orifice, fixing leg, and terminal is integrated into the printed circuit board, allowing for mechanical fixation and electrical connection, eliminating the need for cables and reducing assembly steps.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If cables are used for electrical connection between the frequency inverter and the hermetic compressor connector, then electrical connection is established, but production cost and assembly time increase due to cable fixing and soldering requirements

Engineering Contradiction:
Improveelectrical connectionVSAvoidassembly time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent combines the electrical connection function and mechanical fixation function into a single integrated connector component. The connector includes contact elements that establish electrical connection with the PCB tracks while simultaneously providing mechanical attachment through its structure, eliminating the need for separate cables and soldering operations.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The invention extracts the cable and soldering operations from the assembly process by integrating the electrical connection function directly into the connector mounted on the PCB. This removes the intermediate cable component and the complex soldering step, leaving only the connector mounting operation.

Inventive Principle:
Principle #2Taking out (Extraction)

2Reliability

If multiple steps are used for fixing the frequency inverter to the hermetic compressor on the production line, then secure connection is achieved, but production efficiency decreases and costs increase

Engineering Contradiction:
Improveconnection stabilityVSAvoidproduction efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent merges multiple functions (electrical connection, mechanical fixation, and structural support) into a single connector component that is mounted on the PCB in one operation. This integrated approach replaces multiple separate assembly steps while maintaining connection stability through the connector's designed structure.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The invention segments the connection system into a modular connector that can be independently mounted on the PCB, separating it from the cable assembly and the compressor mounting operations. This modularity allows each component to be optimized and assembled in simplified steps.

Inventive Principle:
Principle #1Segmentation

3Reliability

If cables are fixed to the printed circuit board by soldering or using additional connectors, then electrical connection is established, but production costs increase

Engineering Contradiction:
Improveelectrical connectionVSAvoidproduction cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent combines the electrical contact function and the mechanical mounting function into a single integrated connector structure. This eliminates the need for additional connectors or complex soldering operations, reducing component count and assembly complexity while maintaining reliable electrical connection.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The invention extracts the electrical connection function from the cable assembly and integrates it directly into the PCB-mounted connector. This removes the need for cable soldering and additional connection components, simplifying the manufacturing process and reducing costs.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentUS10199757B2Electronic control connector, electronic control for driving a hermetic compressor and hermetic compressor
Publication Date: 2019.02.05 NIDEC GLOBAL APPLIANCE BRASIL LTDA
  • US10199757B2 patent drawing
  • US10199757B2 patent drawing
  • US10199757B2 patent drawing

AI summary

An electronic control connector (30) including at least an input orifice (32a), at least a fixing leg (33) and at least a terminal (34), the terminal (34) being inserted inside the input orifice (32a), the electronic control connector (30) being fixed to a printed circuit board (10) of an electronic control (50), by a fixing between the fixing leg (33) and a fixing orifice (16) disposed on the printed circuit board (10) of the electronic control (50), the fixing of the electronic control connector (30) to the printed circuit board (10) also establishing an electrical connection between the terminal (34) of the electronic control connector (30) and the tracks of the printed circuit board (10) of the electronic control (50).