Board-to-Board Connector Elastic Rotating Part Side-to-Side Rotation
Solution Overview
Problem
Existing board-to-board connectors face limitations in flexible rotation, particularly in the side-to-side direction, which can lead to permanent deformation and damage when excessive coupling forces are applied, and they struggle to maintain parallelism between connected boards.
Innovation Solution
The proposed connector design includes an elastic rotating part with slots for side-to-side rotation, a plate spring or O-ring for buffering, and a multipoint support plate spring to enhance load acceptance and prevent relative rotation, ensuring stable and parallel connections between boards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If spiral grooves are used to provide elastic restoring force in the top-to-bottom direction, then the connector can rotate in the top-to-bottom direction, but the connector cannot flexibly rotate in the side-to-side direction and may be permanently deformed under excessive coupling force
Solution Approach 1:
The elastic rotating part is divided into multiple independent elastic protrusions (first, second, third, and fourth elastic protrusions) arranged at different positions and orientations. Each protrusion provides elastic restoring force in a specific direction, collectively enabling flexible rotation in both top-to-bottom and side-to-side directions while distributing mechanical stress to prevent permanent deformation.
Solution Approach 2:
Different elastic protrusions are positioned to provide elastic restoring force in different directions. The first and second elastic protrusions provide restoring force in the top-to-bottom direction, while the third and fourth elastic protrusions provide restoring force in the side-to-side direction, creating localized elastic support where needed.
2Strength
If a separate manufacturing process is used to form spiral grooves in the center of the case, then elastic restoring force can be provided, but the manufacturing complexity increases
Solution Approach 1:
The invention changes the structural parameters from spiral grooves to discrete elastic protrusions made of elastic material. This parameter change allows the same elastic restoring force function to be achieved through material selection rather than complex geometric shaping, simplifying the manufacturing process while maintaining or improving the elastic support capability.
3Adaptability or versatility
If the elastic rotating part is made of elastic material and spaced apart from the cover part, then side-to-side rotation is enabled, but the connector may experience excessive movement or instability
Solution Approach 1:
The elastic rotating part is segmented into multiple elastic protrusions distributed around the circumference, with each protrusion providing localized elastic support. This segmentation allows side-to-side rotation while the distributed arrangement of protrusions maintains overall stability by providing balanced restoring forces in multiple directions.
Solution Approach 2:
The invention combines multiple elastic protrusions with different orientations into a single integrated elastic rotating part. This merging of multiple functional elements into one component enables both side-to-side rotation and top-to-bottom rotation capabilities while maintaining connector stability through the coordinated action of all protrusions.
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 allows for flexible rotation in both top-to-bottom and side-to-side directions, preventing damage and maintaining parallelism between boards, even under excessive loads, thereby ensuring a stable and efficient connection.
Implementation Method 1
The elastic rotating part may be spaced apart from the cover part, made of an elastic material, and rotatable from side to side in a movement space formed between the elastic rotating part and the cover part
Implementation Method 2
a plate spring or O-ring for buffering
Implementation Method 3
a multipoint support plate spring to enhance load acceptance and prevent relative rotation
Data Source
AI summary
A board to board connector may include: a first shell coupled to a first board, and including a protruding extension part extended upward in a longitudinal direction and having one end protruding in a radial direction; and a second shell including an elastic rotating part extended downward in the longitudinal direction toward between a cover part and the protruding extension part, and having one end protruding in the radial direction so as to be engaged with and fixed to the protruding extension part. The elastic rotating part may be spaced apart from the cover part, made of an elastic material, and rotatable from side to side in a movement space formed between the elastic rotating part and the cover part.