Filter Element Joining Device With Recess And Fastening Element
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Solution Overview
Problem
Conventional methods for connecting the end sections of filter elements in fluid technology, such as adhesive bonding and mechanical retaining clips, are complex and prone to errors, leading to potential bypass flows and reduced filter performance.
Innovation Solution
A support device with a joining device featuring a recess and a fastening element that can be inserted to clamp the end sections, providing a reliable and secure connection through a non-positive or positive fixation, with the option of an ultrasonic weld for enhanced stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive bonding methods are used to join end sections, then reliable connection is achieved, but process complexity and equipment engineering effort increase significantly
Solution Approach 1:
The patent replaces the adhesive bonding process (chemical/thermal process) with a purely mechanical joining system consisting of a retaining clip and positioning elements. The retaining clip mechanically secures the end sections without requiring adhesive application, temperature control, or curing processes, thereby eliminating the complex process parameters while maintaining connection reliability through mechanical interlocking.
Solution Approach 2:
The positioning elements are designed to automatically guide and position the end sections during assembly without requiring external positioning equipment or complex alignment procedures. The mechanical structure itself provides the positioning function, making the system self-sufficient and eliminating the need for additional positioning devices or processes.
2Ease of manufacture
If retaining clips are used to mechanically connect end sections, then adhesive bonding process is avoided, but the clips may slip during joining process
Solution Approach 1:
The joining system is divided into functionally distinct components: positioning elements that secure the end sections in correct alignment, and a retaining clip that provides clamping force. This segmentation allows each component to be optimized for its specific function, with the positioning elements preventing misalignment and the retaining clip preventing slippage, thereby maintaining manufacturing simplicity while enhancing connection reliability.
Solution Approach 2:
The positioning elements perform the preliminary action of securing and positioning the end sections before the retaining clip is fully engaged. This preliminary positioning ensures that the end sections are correctly aligned and held in place during the joining process, preventing slippage before the final clamping action occurs.
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 ensures a more reliable and secure connection of the end sections, preventing slipping and ensuring a tight seal, thus maintaining filter performance and preventing fluid bypass.
Implementation Method 1
a fastening element (20) that can be inserted, at least partially, into the recess (28) so as to secure, in particular clamp, the end sections (16, 18)
Implementation Method 2
to join them materially using an ultrasonic process
Data Source
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AI summary
A joining device for connecting, in particular, two end sections of a fluid power filter element or several filter elements is disclosed. The joining device has a recess for receiving the end sections. According to the invention, the joining device also has a fastening element that can be inserted into the recess, at least partially, for securing—in particular, clamping—the end sections. A support device for one or more fluid power filter elements is also disclosed, which has a hollow cylindrical, fluid-permeable wall against which the filter element or elements can be supported, and which includes a joining device according to the invention for connecting the end sections.A filter arrangement with such a support device, comprising one or more fluid power filter elements supported on the support device, is further disclosed. End sections of the filter element(s) are inserted into the recess of the joining device of the support device, and the fastening element of the joining device is inserted at least partially into the recess. In this way, the end sections are secured in the recess by the fastening element, in particular by force-fit or form-fit.