Cable sealing device and cable sealing system

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Solution Overview

Problem

Existing cable sealing devices for housing walls in electrical or electronic devices fail to provide a reliable and simple method for sealing and fixing multiple cables, leading to potential moisture ingress.

Innovation Solution

A cable sealing device comprising a first and second plate with corresponding holes, and a soft elastic sealing element that can be pressed and elastically deformed to seal and fix cables, with optional bolt connections and sealing rings for enhanced sealing and installation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a cable sealing device is designed to seal and fix multiple cables in a housing wall, then the sealing and fixing reliability is improved, but the device structure becomes more complex

Engineering Contradiction:
Improvesealing and fixing reliabilityVSAvoiddevice structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The sealing element is divided into multiple independent sealing units, each corresponding to a cable hole. Each sealing unit can independently seal and fix a cable, allowing the device to handle multiple cables while maintaining a modular and manageable structure. This segmentation enables reliable sealing of each cable individually without requiring a complex integrated solution.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The sealing element serves multiple functions simultaneously: it seals the cable holes to prevent moisture ingress, fixes the cables in position, and provides a unified mounting interface between the first and second plates. This multi-functionality reduces the need for separate components, thereby simplifying the overall device structure while improving reliability.

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

2Reliability

If a soft elastic sealing element is used to seal cables, then the sealing effectiveness is improved, but the installation complexity increases

Engineering Contradiction:
Improvesealing effectivenessVSAvoidinstallation complexity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The sealing element is pre-mounted on either the first plate or the second plate before the assembly is put together. This preliminary action allows the sealing element to be positioned and adjusted in advance, ensuring proper alignment with the cable holes. When the plates are assembled with bolts, the sealing element is automatically compressed into the correct position, simplifying the installation process while maintaining high sealing effectiveness.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The sealing element utilizes elastic deformation as a key parameter change mechanism. By designing the sealing element with appropriate elastic properties, it can be compressed during installation to fit into the cable holes and maintain constant sealing pressure. This elastic parameter change allows the sealing element to adapt to different cable sizes and installation conditions, improving sealing effectiveness while keeping the installation process straightforward.

Inventive Principle:
Principle #35Parameter changes

3Object-affected harmful factors

If the sealing element is compressed to seal cables, then the moisture prevention is improved, but the force required for compression increases

Engineering Contradiction:
Improvemoisture preventionVSAvoidcompression force
Core Design Contradiction:
Object-affected harmful factorsVSForce

Solution Approach 1:

The sealing element is designed with inherent elastic properties that provide cushioning during the compression process. This elastic cushioning allows the sealing element to gradually deform and conform to the cable holes under compression, distributing the compression force over time and space. The beforehand cushioning effect reduces the peak compression force required while ensuring effective sealing against moisture.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The sealing element is constructed as a flexible component that can elastically deform under compression. This flexibility allows the sealing element to adapt to the geometry of the cable holes and maintain sealing pressure without requiring excessive compression force. The flexible nature of the sealing element enables effective moisture prevention while keeping the compression force within reasonable limits.

Inventive Principle:
Principle #30Flexible shells and thin films

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

The solution provides a simple and effective sealing and fixing mechanism for cables, preventing moisture ingress and ensuring reliable cable management within the housing wall.

Implementation Method 1

the sealing element can be pressed and elastically deformed, and wherein the sealing element can seal and fix the group of cables in the housing wall in a pressed and elastically deformed status

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentUS11909188B2Cable sealing device and cable sealing system
Publication Date: 2024.02.20 OUTDOOR WIRELESS NETWORKS LLC
  • US11909188B2 patent drawing
  • US11909188B2 patent drawing

AI summary

The invention relates to a cable sealing device comprising: a first plate having a group of first holes and configured to be mounted to a first side of a housing wall; a second plate having a group of second holes and configured to be mounted to a second side of a housing wall; and a soft elastic sealing element configured to be mounted between one of the first and second plates and the housing wall. The group of first holes and the group of second holes and the sealing element are configured to receive a group of cables, and the first and the second plate can be biased toward each other, so that the sealing element can be pressed and elastically deformed. The sealing element can seal and fix the group of cables in the housing wall in a pressed and elastically deformed status. The invention also relates to a cable sealing system comprising a housing wall and the cable sealing device. The cable sealing device is simple in structure and easy to assemble, and can ensure good sealing and fixing of the cables.