Cable Drum Servo Amplifier Cooling with Segmented Heat Sink
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing cable reel cooling systems are structurally complex, expensive, and prone to damage due to water freezing in heat sinks, leading to short circuits and reduced service life.
Innovation Solution
A cable drum with an integrated servo amplifier and an open cooling system featuring two-piece housing parts with radially formed cooling fins, a laminated hollow body as an active heat sink, and adjustable water or air flow through cover caps, which automatically opens at freezing temperatures to prevent damage and ensure a watertight seal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If closed cooling devices with water cooling are used, then cooling efficiency is improved, but the risk of water freezing and destroying the heat sink increases
Solution Approach 1:
The housing is divided into two separable housing parts that can be assembled and disassembled. This segmentation allows the cooling system to be opened in freezing temperatures, preventing ice expansion from destroying the heat sink, while maintaining effective cooling during operation.
Solution Approach 2:
The cooling system transitions from a static closed design to a dynamic system where the housing parts can be separated. This dynamic capability enables the system to adapt to freezing conditions by opening the cooling path, eliminating the risk of water freezing damage while preserving cooling efficiency during normal operation.
2Temperature
If complex cooling systems with multiple components are implemented, then cooling performance is improved, but device complexity and cost increase
Solution Approach 1:
The cooling fins are integrated directly into the housing parts themselves, merging the structural housing function with the thermal management function. This eliminates the need for separate cooling device components, reducing structural complexity while maintaining effective cooling performance through the enlarged surface area of the integrated fins.
3Temperature
If cooling openings are provided for heat dissipation, then heat dissipation capability is improved, but moisture penetration risk increases
Solution Approach 1:
The cooling openings are implemented as dynamic features through the separable housing design. During operation, the housing parts remain closed to protect against moisture while allowing heat dissipation through the integrated cooling fins. In freezing conditions, the housing can be opened to prevent ice damage, creating a dynamic response to environmental conditions that addresses both heat dissipation and protection needs.
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 cost-effective, lightweight, and simple construction with an expanded cooling surface, preventing moisture ingress and enhancing service life by efficiently dissipating heat and avoiding short circuits.
Implementation Method 1
the heat-emitting parts of which are connected to the outer wall of the laminated hollow body
Implementation Method 2
with an expanded cooling surface for dissipating unwanted heat development
Implementation Method 3
open water cooling system... adjustable water or air flow through cover caps
Data Source
Figure 1~3
Figure 4
Figure 5
AI summary
The invention relates to a cable reel with an integrated servo amplifier for controlling an external servo motor with an open cooling system. The objective was to develop a lightweight and simple design with an extended cooling surface for dissipating unwanted heat generation. This design automatically opens the cooling system at freezing temperatures, preventing damage, extending the system's lifespan, and preventing moisture ingress into the electronic components and short circuits. The heat sink consists of two one-piece housing parts with cooling fins molded onto their outer surfaces. These fins are connected in a watertight or airtight manner via a laminated hollow body, arranged between two mounting ports of the housing parts, forming a single, active heat sink.Each end cap, featuring a water inlet and outlet, as well as a leakage point for water cooling or a fan for air cooling, is inserted into a receiving port. A servo amplifier is located within the housing components of the cable drum above the laminated hollow body; its heat-dissipating components are in contact with the axial outer wall of the laminated hollow body.