Floating Connector Assembly With Elastic Contacts for Fine-Pitch Tolerance
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Solution Overview
Problem
Existing floating-type connector assemblies face challenges in achieving sufficient floating range due to the complexity of electronic instrument structures, leading to insufficient tolerance zones for relative displacement between circuit boards, especially when fine contact pitches are required.
Innovation Solution
A connector assembly comprising a stationary housing and a movable housing with strategically designed gaps and elastic contacts, allowing for relative displacement in multiple directions, enabling increased floating range without the need for fixation fittings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fittings are used to press down the top and bottom shells against the circuit boards, then the connector structure is stable, but the floating range is insufficient and the device complexity increases
Solution Approach 1:
The invention removes the fittings that were previously used to press the shells against circuit boards. By extracting this component, the connector achieves a larger floating range without the constraint of fixed pressing forces, while still maintaining stability through the elastic deformation capability of the contacts themselves.
Solution Approach 2:
The invention transitions from a static fixed-pressing structure to a dynamic elastic deformation structure. The contacts are designed to elastically deform and adapt to positional deviations, allowing the connector to dynamically adjust to floating range requirements without rigid mechanical constraints.
2Reliability
If fittings are used to secure the top and bottom shells, then the connector structure is stable, but the number of components increases
Solution Approach 1:
The invention extracts and removes the fittings from the connector structure. By eliminating these separate securing components, the design reduces part count and assembly complexity while relying on the inherent elastic properties of the contacts to maintain structural stability during mating.
3Quantity of substance
If the contact pitch is made fine, then the connector density increases, but the tolerance management becomes more difficult
Solution Approach 1:
The invention changes the mechanical parameter of contact stiffness and elastic deformation capability to compensate for fine pitch tolerances. By designing contacts with appropriate elastic properties, the system can accommodate smaller positional deviations that naturally occur with finer contact spacing, effectively decoupling pitch reduction from tolerance management difficulty.
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 a sufficient floating range of up to ±1 mm or more, allowing for stable connections and improved signal integrity by avoiding excessive stress on contacts and maintaining impedance match during elastic deformation.
Implementation Method 1
the first connector and the second connector are configured so that elastic deformation of the contacts enables the first connector and the second connector to mate with each other even if the positions of the first connector and the second connector relatively deviate from each other in a predetermined floating range
Data Source
AI summary
A connector comprises a plurality of contacts, a stationary housing, and a movable housing. The plurality of contacts are arranged along a predetermined first to form a first row and a second row in parallel, positioned on a reference surface encompassing the first direction and a second direction orthogonal to the first direction, and are bonded to an object to be bonded. The stationary housing surrounds the plurality of contacts and positioned on the reference surface. The movable housing sections an interior of the stationary housing into an area closer to the first row and an area closer to the second row, and is displaceable in the first direction and the second direction with respect to the stationary housing.