Duct installation housing with cooling
Solution Overview
Problem
Line installation housings face thermal issues due to direct sunlight and high outside temperatures, which can damage sensitive semiconductor components, and existing cooling solutions often lead to noise pollution.
Innovation Solution
A line installation housing with a cooling unit featuring a refrigerant circuit, a compressor mounted on a damping aid with elastic buffers, and a fan system that includes EC fans for reduced noise and energy consumption, along with resonance-damping materials and targeted pipe weighing to minimize noise transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a cooling unit with compressor is installed to cool the interior space, then temperature control is improved, but noise emissions increase
Solution Approach 1:
A damping mounting aid is introduced as an intermediary element between the compressor and the housing. This mounting aid comprises damping elements (elastomeric material blocks) that absorb and reduce the structure-borne noise generated by the compressor, thereby mediating between the cooling function and noise reduction requirements
Solution Approach 2:
The damping function is extracted from the housing structure itself and implemented as a separate, dedicated mounting aid component. This allows the housing walls to focus on their primary function while the specialized mounting aid handles noise reduction, optimizing both cooling performance and acoustic isolation
2Device complexity
If the compressor is mounted directly to the housing, then device complexity is reduced, but noise transmission to housing increases
Solution Approach 1:
The damping mounting aid serves as an intermediary mounting structure that simplifies installation while simultaneously providing noise reduction. The mounting aid can be installed as a single component with the compressor, reducing overall device complexity compared to multiple separate mounting elements
Solution Approach 2:
The mounting aid utilizes composite construction with a rigid support structure combined with elastomeric damping material. This composite approach provides both mechanical support and vibration isolation, achieving noise reduction without significantly increasing mounting complexity
3Use of energy by moving object
If EC fans are used instead of conventional fans, then energy consumption is reduced, but initial device complexity increases
Solution Approach 1:
The fan system transitions from conventional AC motor operation to EC motor operation, changing the electrical control parameters. The EC fans enable variable speed control based on actual cooling demand, reducing energy consumption during partial load operation while the integrated control system manages the increased complexity
4Object-generated harmful factors
If pipe sections are weighed down to reduce resonance, then noise transmission is reduced, but device complexity increases
Solution Approach 1:
Rather than modifying the entire pipe system, damping weights are applied locally at specific pipe sections where resonance and noise transmission are most problematic. This localized approach reduces overall noise transmission while minimizing the addition of components and maintaining pipe system simplicity
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
Ensures reliable temperature control within the housing, reduces noise emissions, and conserves energy by using fans for partial load operation and adjusting compressor capacity, effectively addressing thermal challenges while minimizing environmental noise.
Implementation Method 1
the compressor being mounted on a rigid mounting aid by means of damping, preferably elastic buffers
Implementation Method 2
preferably elastic buffers, particularly preferably elastomeric buffers
Implementation Method 3
a refrigerant circuit with a compressor for the refrigerant, has an evaporator and a condenser
Implementation Method 4
evaporator and condenser often each having a fan
Implementation Method 5
with the evaporator and the condenser often each having a fan
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Cable installation housing (1, 2, 3) for signal cables, with housing walls, an interior enclosed by the housing walls for the signal cable installation, a cooling unit (13-23) for active cooling of the interior, which cooling unit (13-23) has a refrigerant circuit with a compressor (16) for the refrigerant, an evaporator (22) and a condenser (15), wherein the compressor (16) is mounted on a rigid mounting aid (17) by means of damping, preferably elastic buffers (24), which mounting aid (17) is in turn mounted on the cable installation housing (1, 2, 3) by means of further damping, preferably elastic buffers (18).