Cooling Air Flow Guide for Soil Compactor Energy Store
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Solution Overview
Problem
Soil compaction devices using energy storage devices face overheating issues due to high power consumption, leading to decreased efficiency, potential damage, and safety hazards such as fire or chemical burns, with high replacement costs.
Innovation Solution
A soil compaction device with an energy storage system that incorporates an air conveying device to generate a cooling air flow, guiding it along the energy store and drive components to maintain within permissible operating temperatures, using a single air flow for effective cooling of both, and optionally including an insulation device to prevent heat transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If an energy store is used to power the soil compaction device, then emission-free operation is achieved, but the energy store overheats and may be damaged or destroyed
Solution Approach 1:
An air conveying device is introduced as an intermediary component between the energy store and the environment. This device actively manages heat removal by generating a controlled air flow that passes over the energy store, preventing overheating while maintaining the emission-free operation benefit
2Power
If high power is consumed by the energy store, then the drive has sufficient power, but the energy store temperature exceeds maximum permissible limits
Solution Approach 1:
The cooling air flow is directed over the energy store before critical overheating occurs. The air conveying device is positioned and configured to establish cooling airflow in advance during high-power operation, preventing temperature from reaching dangerous levels rather than reacting after overheating begins
Solution Approach 2:
The patent employs pneumatic principles by using an air conveying device to generate a controlled flow of cooling air. This airflow is directed over the energy store to facilitate convective heat transfer, effectively managing temperature during high-power consumption without requiring liquid cooling systems
3Temperature
If the energy store is cooled by air flow, then overheating is prevented, but the device complexity increases
Solution Approach 1:
The air conveying device is designed to serve multiple functions: it generates cooling airflow for the energy store, and simultaneously its structure and airflow path are configured to also cool the drive components. This multi-functionality reduces overall system complexity compared to having separate cooling systems for each component
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 effectively cools the energy storage and drive components, preventing overheating, reducing the risk of damage and safety hazards, while maintaining emission-free or reduced operation and lowering costs.
Implementation Method 1
An air conveying device for generating a flow of cooling air can be provided in the soil compacting device... Operating heat and/or intrinsic heat can be withdrawn from the energy store by the flow of cooling air, as a result of which it is cooled.
Implementation Method 2
The air conveying device can have, for example, a fan with a blower, which sucks in air from an area surrounding the soil compacting device by rotating a fan wheel (propeller).
Implementation Method 3
An insulation device can be provided to protect the energy store from heat that is given off by the other heat-generating components of the soil compacting device.
Data Source
Figure 1
Figure 2
AI summary
The invention relates to a soil compacting device (1) having an upper body and a lower body, which is coupled to the upper body by a spring device (9) and which has a soil contact element (10). Furthermore, a drive (3) is provided for generating an operating motion of the soil contact element (10), and an energy store (13) is provided for storing electrical energy. A cooling air flow (16), which is guided through a cooling air flow guide (14, 17) along the energy store (13), can be created by an air conveying device (15).