Flush-Mounted RFID Assembly for Secure Tool Attachment
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Solution Overview
Problem
Conventional RFID labels, especially those with a tag configuration, often obstruct operations when attached to objects like hand tools due to protrusion, and are not securely fixed, leading to potential detachment during use.
Innovation Solution
An RFID assembly design featuring a main body with a head and body, where the head is partially sunk into an expanded portion of an object's engagement hole, ensuring the RFID structure is firmly attached and resistant to detachment from external forces or collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the RFID label is hung on the object using a tag configuration, then the RFID label can be attached to the object, but it obstructs operation due to excessive protrusion
Solution Approach 1:
The invention transitions from a protruding tag configuration to a flush-mounted configuration by creating an expanded portion at the opening of the engagement hole. This dimensional change allows the head to sit level with the object surface, eliminating protrusion while maintaining secure attachment through the expanded portion's interference fit.
2Ease of operation
If the RFID label is made compact to reduce protrusion, then operation obstruction is reduced, but the attachment becomes loose and easily detached due to external force or collision
Solution Approach 1:
The invention changes the geometric parameters of the engagement hole by creating an expanded portion with a diameter larger than the head. This parameter change enables the head to be firmly held within the expanded portion, preventing detachment from external forces or collisions while keeping the overall profile compact and flush with the surface.
Solution Approach 2:
The expanded portion acts as a pre-designed protective feature that cushions against detachment forces. By providing a larger diameter region at the opening before any collision or external force is applied, the structure preemptively prevents the head from being pulled out, ensuring reliable attachment.
3Reliability
If the head diameter is increased to improve attachment security, then resistance to detachment improves, but the RFID structure protrudes more from the object surface
Solution Approach 1:
Instead of increasing the head diameter to improve attachment security, the invention creates an expanded portion at the engagement hole opening that is larger than the head. This allows the head to remain compact (minimizing protrusion) while still being securely held by the expanded portion, resolving the contradiction between attachment security and protrusion distance.
Data Source
AI summary
A RFID assembly includes a RFID engagement device and an object. The object has an engagement hole including an expanded portion and an insertion portion connected in sequence. A main body of the RFID engagement device includes a head and a body that are connected. The body is inserted into the insertion portion. A RFID structure fits into the head. The head is at least partially placed in the expanded portion. A diameter of the expanded portion is slightly greater than a diameter of the head. Therefore, the head of the RFID engagement device could be sunk in the surface and a bottom side of the head does not protrude out of the expanded portion, so that the head is prevented from being lifted due to collision with a foreign object which is in contact with an inner side of the head.