Integrated Motor-Pump Housing With Cooling Fins and Port Clearance
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Solution Overview
Problem
In applications such as stationary industrial machinery and industrial vehicles, the compactness and thermal constraints of electric motors with integrated pumps pose challenges due to space limitations and thermal issues, particularly with regards to hydraulic systems, where existing solutions fail to efficiently manage heat dissipation and line clearance.
Innovation Solution
An electric motor with a rotor shaft and a gear pump integrated into a single housing unit, where the end bell housing features cooling fins and supports the gear, allowing for a compact arrangement that enables heat dissipation and access for hydraulic lines while reducing longitudinal length and width, thus optimizing space usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the electric motor and pump are integrated into a single housing unit, then the volume and space usage are optimized, but thermal dissipation becomes more difficult due to confined space
Solution Approach 1:
The electric motor and pump are merged into a single integrated housing unit, sharing common structural components and mounting surfaces. This consolidation reduces the overall volume occupied by the assembly while maintaining functional separation through internal design features such as thermal barriers and dedicated cooling passages.
Solution Approach 2:
A bell housing serves as an intermediary structure between the motor and pump components, providing thermal management functionality. The bell housing incorporates cooling fins that act as heat dissipation surfaces, mediating the thermal transfer from motor to environment while maintaining the compact integrated form factor.
2Volume of moving object
If the motor and pump are placed in a compact arrangement, then space is optimized, but access for hydraulic lines and clearance becomes constrained
Solution Approach 1:
The integrated housing design utilizes three-dimensional space optimization by routing hydraulic lines through vertically arranged ports and passages. The bell housing provides vertical clearance and lateral access points, allowing hydraulic connections to be made from multiple directions without increasing the horizontal footprint of the assembly.
Solution Approach 2:
The housing structure serves multiple functions simultaneously: it provides structural support for motor and pump mounting, acts as a thermal management system through cooling fins, and facilitates hydraulic line access through integrated ports and passages. This multi-functionality eliminates the need for separate access structures that would increase overall volume.
3Temperature
If cooling fins are added to the housing, then heat dissipation is improved, but the device complexity increases
Solution Approach 1:
The cooling fins are integrated directly into the bell housing structure, combining the thermal management function with the existing structural component. This eliminates the need for separate cooling devices or attachments, as the housing itself serves as the heat dissipation structure through its finned external surfaces.
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 configuration provides a more compact and efficient use of space, enhances heat dissipation, and allows for better alignment of hydraulic ports, reducing thermal constraints and improving the overall performance of the hydraulic system.
Implementation Method 1
the end housing having a plurality of cooling fins
Implementation Method 2
enabling heat dissipation
Implementation Method 3
the gear pressurizing hydraulic fluid
Data Source
AI summary
A system is disclosed including an electric motor having a rotor shaft, a hydraulic pump including a gear; and an end bell housing enclosing an end of the electric motor, the end housing having a plurality of cooling fins, the end housing further supporting the gear coupled to the rotor shaft, the gear pressurizing hydraulic fluid.