Oscillating Armature Pump With Direct Piston-Magnet Connection
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Solution Overview
Problem
Existing vibrating armature pumps suffer from instability, noise, and require multiple components, leading to inefficiencies and increased material usage.
Innovation Solution
A vibrating armature pump design with a directly connected piston and magnet part, using a deep-drawn piston part and a magnetic part, which are connected via a force-fit or form-fit connection, reducing the need for springs and enhancing stability and force transmission while minimizing noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the piston part and magnet part are connected only by spring force, then the device can operate with simpler connection mechanics, but the stability and force transmission are reduced
Solution Approach 1:
The patent combines the piston part and magnet part into a single integrated working piston assembly with direct mechanical connection. This merging eliminates the separate spring-based connection system, providing stable force transmission while maintaining operational simplicity.
2Reliability
If multiple springs are used to prevent the working piston from striking the end of the cylinder, then the protection against impact is improved, but the number of components and material usage increase
Solution Approach 1:
The cushioning function previously requiring multiple spring components is integrated into the single working piston assembly through the direct connection of piston and magnet parts. This eliminates separate spring components while maintaining impact protection reliability.
3Object-generated harmful factors
If the piston part and magnet part are connected only by spring force, then the assembly is simpler, but noise increases due to striking between components
Solution Approach 1:
By integrating the piston part and magnet part into a unified working piston assembly with direct mechanical connection, the patent eliminates relative motion and impact between separate components, thereby reducing noise generation while maintaining connection simplicity.
4Force
If spring force is used to connect piston part and magnet part, then the connection is simpler to implement, but force transmission efficiency is reduced
Solution Approach 1:
The direct mechanical connection in the integrated working piston assembly provides efficient force transmission from the magnet part to the piston part without the intermediate spring mechanism, enhancing force transmission efficiency while keeping the connection mechanism simple.
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 provides improved stability, reduced noise, and material savings by integrating the piston and magnet parts with a direct connection, allowing for a more efficient and compact pump design.
Implementation Method 1
The oscillating armature pump (20) has a coil unit (60) which is designed, at least when current is flowing, to deflect the magnetic element (34) from a rest position and thus set it into stroke motion
Implementation Method 2
The oscillating armature pump (20) has a spring unit (62) having at least one spring (64, 66) which is designed to exert a force on the working piston (30) in a deflected state from its rest position, acting in the direction of the rest position
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The invention relates to a vibrating armature pump, in particular for a beverage vending machine (10), for pumping a liquid, comprising: - a pressure cylinder (22), - a working cylinder (24), - a working piston (30) which has a piston part (32) which is provided to be guided in the pressure cylinder (22) and together with the pressure cylinder (22) to define a pressure chamber (26), and which has a magnetic part (34) which is provided to be guided in the working cylinder (24), wherein the working piston (30) is provided to be set in a stroke movement, in particular an oscillating movement, along a working axis (31) in order to increase and/or decrease a volume of the pressure chamber (26).It is proposed that the working piston (30) has at least one first connection point (36) which is intended to connect the piston part (32) and the magnet part (34), in particular directly, to each other and to transmit forces of any direction along the working axis (31) from the magnet part (34) to the piston part (32).