Packaged Engine Electrical Box Single Intake Cooling
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Solution Overview
Problem
The existing electrical component box for packaged engine working machines requires separate outside air inlets for high and low current circuit components, leading to increased assembly and maintenance steps and costs due to the need for multiple filters.
Innovation Solution
A packaged engine working machine design where the electrical component storage space is partitioned into high heat generation and low heat generation chambers, with a single intake port for outside air, utilizing an intake fan chamber and communication ports to direct airflow effectively, reducing the need for multiple filters and optimizing cooling paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If separate outside air inlets are provided for high current and low current circuit components, then each component can be cooled independently, but the number of filters increases and assembly and maintenance steps increase
Solution Approach 1:
The patent combines multiple outside air inlets into a single common inlet that serves both the high current circuit component and the low current circuit component. This single inlet is equipped with one filter instead of multiple separate filters, thereby reducing the number of filters needed and simplifying assembly and maintenance operations while still providing cooling to both components through a shared airflow path.
Solution Approach 2:
The single outside air inlet is designed to serve multiple functions by providing cooling airflow to both the high current circuit component and the low current circuit component simultaneously. This multi-functional inlet structure eliminates the need for separate dedicated inlets for each component type, reducing system complexity while maintaining effective cooling for all electrical components.
2Temperature
If multiple outside air inlets are provided for different electrical components, then each component receives dedicated cooling air, but the cost increases due to multiple filters
Solution Approach 1:
The patent merges multiple outside air inlets into a single common inlet structure that supplies cooling air to both high current and low current circuit components. By consolidating the inlet and using a single filter assembly, the manufacturing cost is reduced while still achieving effective heat dissipation for all electrical components through the shared cooling airflow.
3Temperature
If separate cooling paths are provided for high and low heat generation components, then each component can be optimized for its specific cooling needs, but the cooling path length increases and pressure loss increases
Solution Approach 1:
The patent merges the cooling paths of high heat generation components and low heat generation components into a shared cooling airflow path. The single outside air inlet provides cooling air that flows through both component types sequentially, reducing the total path length compared to separate independent paths and thereby minimizing pressure loss and energy consumption while still providing effective cooling to both types of components.
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
This design reduces the number of assembly and maintenance steps by using a single filter, enhances cooling efficiency by minimizing pressure loss, and prevents operator contact with high heat generation components, while ensuring uniform cooling of both high and low heat generation components.
Implementation Method 1
an intake fan chamber provided with an intake fan for sucking outside air through a single intake port
Implementation Method 2
a high heat generation chamber cooling path through which the outside air from the intake port reaches the intake fan chamber via the high heat generation chamber; and a low heat generation chamber cooling path through which the outside air from the intake port reaches the intake fan chamber via the high heat generation chamber, the second communication port, the low heat generation chamber
Data Source
AI summary
A packaged engine working machine is provided. The machine includes an electrical component containing space partitioned into two spaces and a cooling air intake port. An engine disposed in the lower space of a package and electrical components disposed in the upper space, the upper space being partitioned into a high heat generation chamber containing high heat components, a low heat generation chamber containing low heat components, and an intake fan chamber provided with an intake fan for drawing outside air through the intake port. A high heat generation chamber cooling path and a low hear generation chamber cooling part are provided in which outside air reaching the intake fan chamber passes through the chambers via first, second and third communication ports.