Electrical Enclosure Rail Mounting for Dust-Free Hoist Alignment

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Solution Overview

Problem

Existing lifting device systems face safety hazards due to exposed electrical cables and require precise alignment of electrical enclosures with lift support rails, which increases costs and allows dust entry, affecting reliability.

Innovation Solution

The electrical conductor enclosure is mounted on a locator-support plate assembly ensuring vertical alignment and enclosed support rails to prevent dust entry and maintain precise alignment without additional covers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a long electrical cable is connected to the lifting device, then power can be supplied to the moving lift, but the exposed cable becomes a safety hazard

Engineering Contradiction:
ImprovesafetyVSAvoidexposed cable hazard
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The electrical enclosure and support rails are merged into a single integrated structure where the enclosure is mounted directly to the rails. This combination eliminates the need for separate cable management while providing enclosed electrical contacts that prevent exposure hazards.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

Enclosed electrical contacts serve as an intermediary between the power source and the moving lifting device. These contacts are housed within the enclosed structure, mediating the electrical connection while preventing direct exposure of cables and contacts.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of manufacture

If the electrical enclosure is mounted on one side of the lift support rails, then the enclosure can be installed, but precise alignment is required which increases costs

Engineering Contradiction:
ImproveinstallationVSAvoidalignment precision
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

By merging the electrical enclosure with the support rails into an integrated structure, the alignment requirement is eliminated. The enclosure becomes part of the rail assembly itself, so no separate alignment procedure is needed during installation.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated enclosure-rail structure is self-aligning by design. The enclosure is positioned and supported directly by the rail structure, allowing it to self-align without requiring external alignment tools or procedures.

Inventive Principle:
Principle #25Self-service

3Ease of operation

If the enclosure has an exposed central bottom slot for the contact trolley, then the trolley can move freely, but dust can enter the enclosure affecting reliability

Engineering Contradiction:
Improvetrolley movementVSAvoidelectrical contact reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

A flexible dust cover is used to seal the bottom opening of the enclosure while allowing the contact trolley to move freely. The flexible material accommodates the trolley's motion while maintaining the dust barrier, thus preserving both operational freedom and protection.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The dust cover acts as an intermediary element between the enclosed electrical contacts and the external environment. It allows the trolley to pass through while blocking dust particles, mediating between the need for movement and the need for protection.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS11820630B2Electrical enclosure combined with lifting device support rails
Publication Date: 2023.11.21 KNIGHT IND & ASSOC INC
  • US11820630B2 patent drawing
  • US11820630B2 patent drawing
  • US11820630B2 patent drawing

AI summary

A plate assembly for mounting an electrical enclosure in a position vertically aligned atop an overhead rail used to support a traveling hoist which traverses back and forth along the rails on a trolley. The plate assembly includes a plate which is shaped like an inverted U by a central opening extending up from the bottom with mounting portions projecting normal to the plate which are configured to be attached to the enclosure when installed in the opening at the top and to respective rail pieces clamped against respective sides of the opening.