Vibration-Isolating Connector with Anti-Protrusion Buffer Structure
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Solution Overview
Problem
Conventional connectors for vibrating bodies and shielding bodies suffer from deformation and protrusion of spiral-shaped wire buffer members, leading to ineffective vibration isolation and potential damage due to collision with the vibrating source.
Innovation Solution
A connector design featuring a first buffer member with a spiral-shaped wire, a second buffer member capable of warping in the thickness direction, and a coupling member with a gap for radial movement, ensuring the second buffer member can move without protruding and reducing collision risk, while the first and second buffer members are sandwiched by flanges to maintain effective vibration absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a spiral-shaped wire buffer member is used for vibration isolation, then vibration isolation effect is improved, but the buffer member deforms and middle portion protrudes after extended use
Solution Approach 1:
The buffer member is divided into multiple independent spiral-shaped wires (first buffer member, second buffer member, third buffer member) instead of a single continuous wire. Each wire acts independently to absorb vibrations, preventing the deformation and protrusion issues that occur in single-wire designs after extended use.
Solution Approach 2:
The first, second, and third buffer members are stacked concentrically with each other, with the second buffer member nested between the first and third buffer members. This nested arrangement allows each buffer member to deform independently while maintaining overall structural integrity, preventing middle portion protrusion.
2Stability of the object's composition
If the buffer member is constrained tightly to prevent deformation, then shape stability is improved, but vibration absorption capability deteriorates
Solution Approach 1:
The buffer members are designed to be dynamically constrained - the collar member and coupling member provide boundaries, but the stacked spiral wires can deform elastically within these boundaries during vibration cycles. This dynamic constraint allows vibration absorption while maintaining shape stability.
Solution Approach 2:
The buffer members utilize elastic deformation within their material properties, changing their shape temporarily during vibration absorption while returning to original shape afterward. This parameter change (elastic deformation) enables both vibration absorption and shape stability.
3Strength
If the coupling member is fixed rigidly to the vibrating body, then connection strength is improved, but collision damage increases due to vibration transmission
Solution Approach 1:
The stacked buffer members act as intermediary elements between the collar member (attached to vibrating body) and the coupling member (holding shielding body). These intermediaries absorb vibrations through elastic deformation, preventing direct transmission of vibrational forces that would cause collision damage.
Solution Approach 2:
The buffer members are positioned in advance between the vibrating body and shielding body to cushion against upcoming vibrations. This beforehand cushioning prevents collision damage by absorbing vibrational energy before it can cause harmful effects.
4Reliability
If the buffer member is made more flexible to improve vibration absorption, then vibration isolation is improved, but the middle portion protrudes more easily
Solution Approach 1:
The nested stacked arrangement of multiple spiral wires provides mutual support - each wire can deform flexibly for vibration absorption while being constrained by the presence of adjacent wires, preventing excessive protrusion of individual wires.
Solution Approach 2:
Dividing the buffer function across multiple independent wires allows each wire to be more flexible for vibration absorption while the collective arrangement maintains overall shape stability, as individual wire deformations are distributed and constrained by the stacked structure.
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 connector effectively isolates vibrations, prevents the buffer member from protruding, and reduces the likelihood of collision with the vibrating body, thereby minimizing damage and unusual sounds.
Implementation Method 1
a first buffer member that includes a spiral-shaped wire in a plan view; a second buffer member that has a substantially annular and flat plate-like shape, that is capable of warping in a thickness direction, and that is stacked with the first buffer member
Implementation Method 2
a second buffer member that has a substantially annular and flat plate-like shape, that is capable of warping in a thickness direction
Data Source
AI summary
A connector includes a first buffer member that includes a spiral-shaped wire, a second buffer member that has a substantially annular and flat plate-like shape capable of warping in a thickness direction, a collar member that includes a first flange facing a radially inner side of the first buffer member, and a second flange facing a radially inner side of the second buffer member, and a coupling member. A gap for allowing the second buffer member to move in a radial direction is formed between the second buffer member and a cylindrical portion. A distance between a position of a surface of the second flange and a position of a lowest end of the collar member is greater than a distance between a position of a surface of the first flange and the position of the surface of the second flange in a view in an axial direction.