Electromagnetic Control Device Axial Locking Clip
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Solution Overview
Problem
Existing electromagnetic control devices for hydraulic directional valves require complex installation processes, including rotational movements and high force application, which can be cumbersome and difficult in limited spaces.
Innovation Solution
An electromagnetic control device with a plastic overmolding housing and a fastening unit featuring a locking clip with legs that can be tensioned tangentially, allowing for axial movement-only installation and a locking section that interacts with a component's locking contour for secure fastening, simplifying the installation process and reducing required force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a bayonet coupling is used for fastening the magnet housing, then the connection is simplified compared to threaded connections, but the installation still requires rotational movement and cannot be sufficiently simplified for limited installation spaces
Solution Approach 1:
The fastening mechanism is segmented into a locking clip with two legs that can be independently tensioned, allowing the fastening operation to be divided into simpler sequential steps rather than requiring complex rotational movements
Solution Approach 2:
Instead of requiring rotational movement to engage the fastening mechanism (bayonet coupling), the invention inverts the approach by using legs that are tensioned in a tangential direction to create locking force, eliminating the need for rotational installation movements
2Reliability
If high fastening force is applied to secure the magnet housing, then reliable connection is achieved, but the installation becomes difficult in limited spaces where high force cannot be applied
Solution Approach 1:
The invention changes the parameter of force direction from axial (perpendicular to the mounting surface) to tangential (parallel to the mounting surface), allowing the locking force to be generated in a direction that does not require high installation force in limited spaces
Solution Approach 2:
The locking section is formed with a curved locking contour that interacts with a corresponding contour on the component, creating a locking mechanism that relies on geometric interlocking rather than high fastening force
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 enables simplified and secure fastening of the electromagnetic control device to internal combustion engine components, such as control drive covers, with reduced installation complexity and force requirements, ensuring reliable durability and ease of installation and removal.
Implementation Method 1
The two legs can be tensioned against each other, wherein the direction of the tensioning force runs essentially tangential to a circular line drawn around the axis of the electromagnetic control device
Implementation Method 2
the locking section is formed for interacting with a locking contour of the component holding the electromagnetic control device
Data Source
AI summary
An electromagnetic control device (2), having a housing (6), which has a plastic overmolding (7) and a unit for fastening to a component (5) that holds the electromagnetic control device (fastening unit (9)). A connection is provided between the electromagnetic control device and the holding component. This is achieved in that the fastening unit (9) has at least one locking clip (10) and one housing-side locking-clip holder (11), and the locking clip (10) has two legs (12), a connection section (13), and a locking section (14) on at least one leg (12).The locking section (14) is designed to interact with a locking contour (21) of the component (5) that holds the electromagnetic control device (2).