Circuit board double-chip centering anti-vibration reinforcing structure and controller circuit board

Abstract

The invention discloses a circuit board double-chip centering anti-seismic reinforcing structure and a controller circuit board, relates to the field of electronic cabin controllers, and is characterized in that the circuit board double-chip centering anti-seismic reinforcing structure comprises a first H-shaped frame and a second H-shaped frame which are located on the same plane, wherein the second H-shaped frame is arranged in the first H-shaped frame to serve as a cross beam of the first H-shaped frame; the arrangement directions of the first H-shaped frame and the second H-shaped frame are perpendicular to each other; two opening ends of the first H-shaped frame and the corresponding side boundary beams of the second H-shaped frame define two reinforcing frames which are distributed in the middle and used for corresponding installation of the first chip and the second chip. The reinforcing effect is obvious, and the influence of resonance is weak; the front stress is transitionally concentrated on the reinforced structure from the PCB, the stress on the PCB is mainly concentrated on the outer edge of the board card, and the stress distribution at the junction of the rotary transformer decoding module is greatly reduced; the stress of the pin area is reduced, so fatigue stress cracks are effectively avoided; compared with an existing structure, the stress concentration distribution area is reduced, and structure improvement is effective.

Description

technical field [0001] The invention relates to the field of electronic cabin controllers, more specifically, it relates to a circuit board double-chip centered anti-seismic strengthening structure and a controller circuit board. Background technique [0002] When the electronic cabin is being debugged at room temperature, there are abnormal jumps in the azimuth and pitch signals collected by the host computer. Ansys16.0 is used to analyze the structural mechanics of the controller currently used in the electronic cabin. The results show that the controller product is on the central axis. The location forms a stress concentration distribution area. Under the condition of equivalent acceleration of 66G, the local stress of the chip pin in the controller is as high as 4.1MPa in this area. [0003] At present, when the electronic cabin is in the running state, since the resolver decoding module integrated in the center of the controller is used as the weight distribution point ...

AI Technical Summary

Problems solved by technology

[0003] At present, when the electronic cabin is in the running state, since the resolver decoding module integrated in the center of the controller is used as the weight distribution point of the board, the board bears a huge impact during the vibration process; when the random vibration frequency and the resolver decoding module are in this place Resonance is formed when the natural frequencies of the board overlap, causing huge damage to the board

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