Novel circuit board locking device with damping vibration attenuation function
A damping and circuit technology, which is applied in the direction of printed circuit components, printed circuit stress/deformation reduction, etc., can solve the problems of large installation space, small PCB quality, and many electronic components, so as to meet the compression requirements and small PCB changes , Improve the effect of the mechanical environment
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[0052] An inertial measurement combination box is subjected to random vibration of 28.96g. After measurement, the vibration level of its in-line circuit board assembly has reached 62.48g. During the test, the circuit board components will appear loose and fall off. can not work. After failure analysis, it is decided to adopt the present invention for both the motherboard and the three direct plug-in boards.
[0053] Motherboard with the present invention: total length L=144, width b=7mm, width of the rubber part of the damping locking strip and the length of the locking structure of the arc-shaped protrusion of the restraining plate of the damping locking strip l=9mm, between the rubber parts of the damping locking strip The gap a=36mm, the thickness H of the rubber part of the damping locking strip is 6mm, the thickness of the restraining plate of the damping locking strip t1=1mm, the height of the arc-shaped convex locking structure h1=1mm, and the thickness t2 of the base p...
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