Oil-Cooled Drive Motor Filter with Leak-Blocking Replacement Mechanism
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Solution Overview
Problem
Conventional drive motors with replaceable oil filters require complete oil drainage and refilling due to oil leakage during filter replacement, which is cumbersome and time-consuming.
Innovation Solution
An oil-cooled drive motor with an opening/closing device on the oil flow path, including an inlet and outlet opening/closing mechanism that seals and blocks the oil flow path during filter replacement, using interlocking mechanisms with the rotation of the oil filter to manage oil inlet and outlet flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the oil filter is made replaceable to enhance foreign substance removal efficiency, then the filtering performance is improved, but oil leakage occurs during filter removal requiring complete oil drainage and refilling
Solution Approach 1:
The opening/closing door is positioned in advance to seal the oil inlet before filter removal begins. This preliminary sealing action prevents oil leakage from occurring during the subsequent filter replacement operations, eliminating the need for complete oil drainage and refilling procedures
Solution Approach 2:
The opening/closing door acts as an intermediary element between the oil inlet and the filter insertion space. By introducing this intermediate sealing component, the system can isolate the oil supply during filter replacement, preventing direct contact between leaking oil and the external environment
2Ease of operation
If the opening/closing door is added to seal the oil inlet during filter replacement, then oil leakage is prevented, but the device complexity increases
Solution Approach 1:
The opening/closing door is designed to be automatically actuated by the filter itself during installation and removal operations. The filter's axial movement directly drives the door's rotational movement, eliminating the need for separate control mechanisms or additional actuators, thus preventing oil leakage without significantly increasing device complexity
Solution Approach 2:
The functions of filter installation/removal and oil inlet sealing are merged into a single integrated mechanism. The same axial movement that installs or removes the filter also automatically opens or closes the oil inlet, reducing the number of independent components and simplifying the overall system architecture
3Productivity
If the opening/closing door is interlocked with filter rotation to automatically open or block the oil inlet, then the filter replacement process is simplified, but the manufacturing precision requirements increase
Solution Approach 1:
The interlocking mechanism is segmented into distinct functional zones: the driving protrusion on the filter, the corresponding groove on the door, and the rail groove guiding the movement. This segmentation allows each component to be manufactured with standard tolerances while achieving reliable automatic opening/closing functionality through their coordinated interaction
Solution Approach 2:
The mechanism transitions from a static sealing arrangement to a dynamic one where the opening/closing door moves automatically in response to filter installation/removal operations. The door rotates about its axis as the filter moves axially, creating a dynamic coupling that adapts to the operational state without requiring high-precision fixed positioning
Data Source
AI summary
The objective of the present disclosure is to provide an oil-cooled drive motor including a replaceable oil filter equipped with an opening/closing device on the oil flow path to prevent oil leakage during oil filter replacement. More specifically, the disclosure provides an oil-cooled drive motor including a replaceable oil filter equipped with an inlet opening/closing device capable of sealing the oil inlet for supplying oil to the oil filter space during oil filter replacement, and an outlet opening/closing device capable of blocking the oil flow path through which filtered oil flows. Particularly, the disclosure provides an oil-cooled drive motor including a replaceable oil filter wherein the inlet opening/closing device and the outlet opening/closing device are configured to open or block the oil inlet and the oil flow path in conjunction with the rotation of the oil filter during replacement.