Electromagnet Anchor Rod Assembly with Caulking Ring
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Solution Overview
Problem
Existing armature rod assemblies for electromagnets, which rely on fastening nuts for securing spring elements, are cumbersome and unreliable, leading to manufacturing challenges and durability issues.
Innovation Solution
An armature rod assembly featuring a collar and caulking ring connection, where the spring element is axially held between the collar and caulking ring, with a positive connection formed by a caulking bead, enhancing durability and reliability, and optionally incorporating a knurl for torque transmission and rotation protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fastening nut is used to secure the spring element to the anchor rod, then the spring element can be held in place, but the assembly becomes cumbersome and less reliable
Solution Approach 1:
The invention extracts the fastening nut from the assembly and replaces it with a caulking ring that forms a positive connection directly with the anchor rod through deformation. This eliminates the need for threaded fasteners and reduces assembly complexity while maintaining connection reliability.
Solution Approach 2:
The invention replaces the mechanical fastening system (fastening nut with threads) with a deformation-based caulking system. The caulking ring is radially deformed to form a positive connection with the anchor rod, substituting threaded mechanical fastening with a simpler deformation mechanism.
2Ease of manufacture
If a fastening nut is used to secure the spring element, then the connection can be made, but manufacturing and assembly become more difficult
Solution Approach 1:
The fastening nut is removed from the assembly, simplifying manufacturing and assembly processes. The caulking ring provides a direct positive connection with the anchor rod that is both easier to manufacture and more reliable than threaded fasteners.
Solution Approach 2:
The invention changes the connection parameter from threaded mechanical engagement to radial deformation engagement. The caulking ring is deformed radially to create a positive connection, changing the fundamental mechanism of connection from threading to deformation, which improves both manufacturability and reliability.
3Duration of action of stationary object
If the spring element is held between the collar and caulking ring with positive connection, then durability is improved, but the structure becomes more complex
Solution Approach 1:
The caulking ring is designed as a simple, inexpensive component that is deformed once to create a permanent positive connection. This simple component provides long-lasting durability without requiring complex structures, as the deformation creates a permanent mechanical interlock.
Solution Approach 2:
The invention uses radial deformation of the caulking ring to create a positive connection, changing the structural parameter from a separate fastening component to an integrated deformed connection. This reduces overall structural complexity while extending assembly lifespan through the permanent nature of the deformed connection.
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 simplifies manufacturing, improves durability, and ensures a reliable connection, preventing play and wear, while allowing for defined pressure application to close outlet openings effectively.
Implementation Method 1
a spring element which can be used to open or close outlet openings... the spring element is held axially between the collar and the caulking ring... enables a defined pressure to be exerted to close outlet openings
Implementation Method 2
A knurl is preferably applied adjacent to the collar to fix the spring element against twisting on the anchor rod. The positive connection to the spring element can thus be increased, so that torque can also be transmitted
Implementation Method 3
an electromagnet with such an armature rod assembly... an electromagnet 10... a winding 130, which is surrounded by a coil core 135... By applying a direct current through the winding 130, a magnetic force can be exerted on the armature 140
Data Source
Figure 1
Figure 2~4b
AI summary
PROBLEM TO BE SOLVED: To provide an armature rod module that can be easily manufactured and has improved durability, and an electromagnet or electromagnetic valve having such an armature rod module.SOLUTION: The invention relates to an armature rod module for an electromagnet with an armature rod 150 carrying a collar 152 has a caulking ring 160 connected fittingly to the armature rod 150, and a spring member 180 clamped axially between the collar 152 and the caulking ring 160.SELECTED DRAWING: Figure 1