Modular DIN Rail Ventilation Device for Electrical Enclosures
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Solution Overview
Problem
Existing air ventilation solutions for electrical switchgear enclosures are complex to install and cannot be placed alongside heat sources due to the need for non-standard cuts and incompatibility with DIN rails, leading to hot air stagnation and accelerated aging of units.
Innovation Solution
A modular air ventilation device with fans that can be fixed onto a mounting support alongside other units, featuring a shutter for controlling air outlet, thermal and humidity sensors for automatic operation, and a design that allows installation without modifying the enclosure, enabling air circulation or discharge of hot air through existing openings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fans are fixed onto the inner face of enclosure walls, then air ventilation is achieved, but installation complexity increases and requires non-standard cuts
Solution Approach 1:
The ventilation device is divided into separate modular components: a fan unit and a mounting bracket, allowing the fan to be installed on standard DIN rails without modifying the enclosure wall. This segmentation eliminates the need for non-standard cuts while maintaining ventilation functionality.
Solution Approach 2:
A mounting bracket is introduced as an intermediary component between the fan and the enclosure wall. The bracket attaches to the DIN rail system and provides mounting surfaces for the fan, thereby avoiding direct attachment to the enclosure wall and eliminating the need for non-standard cuts.
2Reliability
If fans are fixed onto enclosure walls, then air discharge is achieved, but adaptability to DIN rail mounting is lost
Solution Approach 1:
The mounting bracket is designed with universal compatibility for standard DIN rail systems, allowing the fan unit to be mounted alongside other electrical components on the same rail. This multi-functional design enables both air discharge functionality and compatibility with standard electrical mounting infrastructure.
Solution Approach 2:
The mounting bracket serves as an intermediary that translates the fan's mounting requirements into compatibility with DIN rail standards, enabling the fan to be integrated into existing electrical component arrangements without requiring custom installation procedures.
3Reliability
If fans are installed inside enclosures, then hot air removal is achieved, but placement alongside heat sources is prevented
Solution Approach 1:
By separating the fan mounting from the enclosure wall and attaching it instead to the DIN rail, the fan can be positioned in close proximity to heat-generating electrical components. This segmentation enables optimal placement for hot air removal while maintaining ease of installation alongside other rail-mounted equipment.
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 efficient air circulation or discharge of hot air without modifying the enclosure, simplifying installation and operation, while maintaining compatibility with DIN rails and heat sources, thus preventing unit degradation and ensuring compliance with normative standards.
Implementation Method 1
at least one fan in the form of a module that can be fixed onto said mounting support alongside the other units
Implementation Method 2
this ventilation device comprises at least one thermal sensor, and means for automatically triggering the abovementioned ventilation device controlled by said thermal sensor
Implementation Method 3
this device comprises at least one humidity sensor, and heating means controlled by said humidity sensor
Implementation Method 4
the abovementioned heating means comprise a heating resistor
Data Source
AI summary
A ventilation device of the air inside an enclosure intended to house modular electrical units mounted on a mounting support. The device includes at least one fan in the form of a module that can be fixed on to the mounting support alongside the other units.