Pump Device Diaphragm Activation Element Mechanical Connection
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Solution Overview
Problem
Existing pump devices face challenges in efficiently activating the delivery device and generating negative pressure, particularly in terms of mechanical activation and cohesion-free connections, which affect the delivery of fluids.
Innovation Solution
A pump device design featuring a delivery diaphragm with a ring-shaped, elastically deformable main body and an activation element that forms a positively locking or non-positively locking connection with the drive element, allowing for a drive force transmission away from the activation side to create negative pressure and efficiently deliver fluids.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If adhesive bonding is used to connect the activation element to the drive element, then a cohesive connection is achieved for force transmission, but the connection reliability deteriorates due to potential adhesive failure
Solution Approach 1:
The patent replaces the chemical adhesive bonding system with a mechanical connection system. The drive element features a geometric profile (protrusion or recess) that mechanically interlocks with the activation element, eliminating dependence on adhesive cohesion and providing reliable force transmission through pure mechanical engagement.
2Reliability
If a positively locking connection is used between the activation element and drive element, then force transmission reliability is improved, but the device complexity increases due to additional structural features
Solution Approach 1:
The patent merges the connection function with the existing geometric profiles of the drive element and activation element. The positively locking connection is achieved through integrated protrusions or recesses that are part of the basic component geometry, rather than adding separate locking mechanisms, thus maintaining simplicity while ensuring reliable force transmission.
3Area of stationary object
If the activation element has a large longitudinal extent, then the connection area with the drive element is increased, but the ease of operation deteriorates due to interference with the delivery device movement
Solution Approach 1:
The patent applies local quality by concentrating the connection area in a specific localized region of the activation element rather than distributing it along the entire longitudinal extent. This localized connection zone provides sufficient bonding area while keeping the rest of the activation element free to move independently, ensuring proper delivery device operation without interference.
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 design enables reliable movement of the delivery surface away from the counterpart surface, achieving negative pressures lower than -0.3 bar and efficient fluid delivery through a suction movement, while maintaining a resiliently elastic design that assists in resetting and decouples from forced movement, ensuring component preservation.
Implementation Method 1
at least one, in particular substantially ring-shaped, main body (16) which is elastically deformable
Implementation Method 2
interacts by means of a positively locking and/or non-positively locking connection, in particular by means of a cohesion-free positively locking and/or non-positively locking connection, with the drive element
Data Source
AI summary
A pump device for delivery of at least one delivery means, particularly at least one fluid, with at least one drive unit and with at least one delivery device, particularly a delivery membrane comprising at least one, particularly at least substantially annular base body which is elastically deformable and comprises at least one delivery surface arranged on a delivery side of the base body and comprising at least one activation element for connection to at least one drive element of the drive unit, which is arranged on an activation side of the base body, the activation element being designed as a positive or non-positive element that cooperates with the drive element at least for the transfer of a driving force acting in a direction facing away from the activation side, by means of a positive and/or non-positive connection, particularly by means of a positive and/or non-positive connection without adhesive force.