Hydraulic Control Assembly Insulation With Ventilated Cover Hood

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Solution Overview

Problem

Hydraulic control groups with insulating hoods prevent heat dissipation from electronic controllers and high-efficiency pumps, leading to overheating and reduced service life, while also posing a risk of accidental contact.

Innovation Solution

A thermal insulation device featuring a rear shell and cover shell elements made of heat-insulating materials with ventilation openings, allowing for effective insulation of fluid-carrying pipe sections without covering electronic components, thus preventing overheating and ensuring safety against accidental contact.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If a complete insulating hood is provided around the hydraulic control group, then thermal insulation of pipe sections is improved and protection against accidental contact is provided, but heat dissipation from electronic controllers and pumps is prevented causing overheating

Engineering Contradiction:
Improveheat loss from pipe sectionsVSAvoidtemperature of electronic controllers and pumps
Core Design Contradiction:
Loss of energyVSTemperature

Solution Approach 1:

The insulating hood is divided into multiple sections: a first section covering the pipe sections for thermal insulation, and a second section covering the electronic controller and pump with ventilation openings for heat dissipation. This segmentation allows different thermal management strategies for different components.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different parts of the hood have different properties: the first section is fully insulating to prevent heat loss from pipes, while the second section has ventilation openings to allow heat escape from heat-generating components. Each region is optimized for its specific function.

Inventive Principle:
Principle #3Local quality

2Loss of energy

If a complete insulating hood is provided around the hydraulic control group, then thermal insulation is improved, but the service life of electronic controllers and pumps is drastically reduced due to overheating

Engineering Contradiction:
Improveheat loss from pipe sectionsVSAvoidservice life of electronic controllers and pumps
Core Design Contradiction:
Loss of energyVSReliability

Solution Approach 1:

The hood is segmented into insulating and ventilated sections, allowing simultaneous achievement of thermal insulation for pipes and heat dissipation for electronic components, thereby maintaining reliability while improving energy efficiency.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The hood provides locally optimized thermal management: full insulation where heat conservation is needed (pipes) and active ventilation where heat removal is critical (electronic controllers and pumps), ensuring component reliability.

Inventive Principle:
Principle #3Local quality

3Loss of energy

If a complete insulating hood is provided around the hydraulic control group, then thermal insulation is improved, but assembly and disassembly becomes more complex when control elements need replacement

Engineering Contradiction:
Improveheat loss from pipe sectionsVSAvoidassembly and disassembly complexity
Core Design Contradiction:
Loss of energyVSDevice complexity

Solution Approach 1:

The hood is constructed from multiple separable sections that can be independently assembled and disassembled. This modular design simplifies maintenance operations while maintaining comprehensive thermal insulation coverage.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The multi-section hood design serves multiple functions: providing thermal insulation, enabling easy access to components for maintenance, and offering protection against accidental contact, all within a single integrated system.

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

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 effective thermal insulation to meet energy-saving requirements, prevents overheating of control and pump units, and offers protection against accidental contact while being easy to assemble and visually appealing.

Implementation Method 1

a rear shell (18) made of a heat-insulating material, at least one cover shell element (22) made of a heat-insulating material for insulating fluid-carrying pipe sections

Methodology Applied
Scientific EffectThermal insulation: Thermal Insulation

Implementation Method 2

the cover hood (24) has ventilation openings (26)

Methodology Applied
Scientific EffectConvection: Convection

Implementation Method 3

the cover hood (24) has ventilation openings (26)

Methodology Applied
Scientific EffectThermal radiation: Thermal Radiation

Data Source

PatentEP2498007B1Thermal insulation device for a hydraulic control assembly
Publication Date: 2016.11.16 WATTS INDS DEUTLAND
  • EP2498007B1 patent drawingFigure 1
  • EP2498007B1 patent drawingFigure 2
  • EP2498007B1 patent drawingFigure 3

AI summary

The heat-insulating device has a controlling- or regulating unit and a pump unit that has a back cover (18) made of heat-insulating material. A covering shell element is made of heat-insulating material for insulating fluid-conducting pipeline sections of a control group (10). A cover plate formed for covering the control group. The cover plate has ventilation openings.