Compressor Wiring Layout for Consistent Lead-Wire Routing

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional wiring devices for compressors require neaten wires and determine routing directions, leading to inefficiencies in production pace and safety hazards due to uneven forces and potential stripping of insulating sleeves.

Innovation Solution

A wiring device comprising a wiring box cover, a wiring spacer, and a seal terminal with three wiring posts connected to sheet connectors, ensuring consistent outgoing directions of wires, which enhances production efficiency and safety by avoiding uneven forces and local wiring.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If wires are wound around the seal terminal and routing directions are determined, then wires can be led out, but production pace is significantly affected and insulating sleeves may be stripped off

Engineering Contradiction:
Improvewire routingVSAvoidproduction pace
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The patent pre-arranges the wiring posts on the seal terminal in a specific pattern (first, second, and third wiring posts along the extending direction) before wire installation. The wire routing path is pre-determined with the first wire passing through the first wiring post, the second wire passing through the second wiring post, and the third wire passing through the third wiring post. This preliminary arrangement eliminates the need for workers to neatly arrange wires and determine routing directions during assembly, significantly improving production pace while ensuring proper wire installation.

Inventive Principle:
Principle #10Preliminary action

2Ease of operation

If wires are wound around the seal terminal, then wires can be led out, but uneven forces are applied to the wiring posts causing safety hazards

Engineering Contradiction:
Improvewire routingVSAvoidwiring safety
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent segments the wire routing into three distinct paths, with each wire (first, second, and third wires) assigned to a specific wiring post (first, second, and third wiring posts respectively). This segmentation ensures that each wire is routed independently through its designated post, distributing forces evenly across the wiring posts on the seal terminal. The consistent outgoing directions of all three wires further ensure uniform force distribution, preventing the stripping of insulating sleeves and eliminating safety hazards associated with uneven force application.

Inventive Principle:
Principle #1Segmentation

3Ease of operation

If three wires are wound on the same side, then wires can be led out, but the thickness of wires increases making it easy for the wiring box cover to press wires

Engineering Contradiction:
Improvewire routingVSAvoidwire compression
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent distributes the three wires in different spatial dimensions rather than concentrating them on the same side. The first wire is routed through the first wiring post, the second wire through the second wiring post, and the third wire through the third wiring post, with each wire having a consistent outgoing direction. This spatial distribution prevents wire stacking and reduces the local thickness of wires, eliminating the harmful effect of the wiring box cover pressing on the wires while still enabling easy wire routing.

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

Data Source

PatentUS11929601B2Wiring device and compressor
Publication Date: 2024.03.12 SHANGHAI HITACHI ELECTRICAL APPLIANCES CO LTD
  • US11929601B2 patent drawing
  • US11929601B2 patent drawing
  • US11929601B2 patent drawing

AI summary

A wiring device includes a junction box cover, a wiring spacer, and a seal terminal. The wiring device is disposed on a housing cover of a compressor. The junction box cover is disposed on the junction spacer and forms a cavity space, and the cavity space is provided with a wiring opening at the end away from the seal terminal. The seal terminal is provided with 3 wiring columns; each wiring column is connected to a piece of connector along the extending direction of the wiring column away from the housing cover; and the connector all extend in the direction close to the wiring opening so that the outgoing directions of lead wires are consistent. The present structure enables the lead wires to go out smoothly so as to improve production efficiency.