A printed circuit board
By creating through holes on the printed circuit board and fixing nuts, the expansion module can be efficiently removed by utilizing the threaded engagement of the bolt and nut. This solves the problems of low removal efficiency and circuit board damage, and reduces costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI EMBEDWAY INFORMATION TECH
- Filing Date
- 2025-08-14
- Publication Date
- 2026-07-03
AI Technical Summary
Removing expansion modules from printed circuit boards is inefficient and can easily damage the circuit board itself, leading to increased costs.
A through hole is made on the circuit board body and a connecting nut is fixed thereon. The expansion module covers the nut. The bolt and the nut are threaded together, so that the bolt can move axially and abut against the expansion module, thereby removing the expansion module.
It improves the efficiency of removing expansion modules, reduces damage to the circuit board itself, and lowers removal costs.
Smart Images

Figure CN224460110U_ABST