An avionics case with internal module stack structure form connection

Abstract

The invention provides an avionics case with internal module stack structure form connection. The function modules are connected in a stack structure mode. A micro rectangular connector is adopted between the adjacent functional modules; the functional module communicates with the socket rear printed board of the front panel through a double-head cable; the printed board of each function module isparallel to the case cover board, the function module printed board is parallel to the micro-distance connector plug-in opening, each function module is fixed on the installation boss of the case body, and the function module and the mother board are plugged in the rectangular connector space, and the locking device is installed in the fixing space. According to the invention, the maximization ofthe effective device arrangement area on the module printed board in the case can be realized, so that the size of the appearance of the case is minimum. The metal wire mesh shock absorber is arranged to meet the requirement for the vibration strength of a machine, the window in the case body can be externally connected with debugging equipment, the online debugging and software upgrading are achieved, the power source function module and the cover plate function are integrated, and the heat dissipation efficiency is high.

Description

technical field [0001] The invention relates to the field of joint design of circuits and structures, in particular to an avionics case. Background technique [0002] The internal functions of the existing avionics chassis are all fixed to the motherboard through rectangular connectors and locking devices. The reserved space (10mm) will occupy 37.5mm of the chassis, and the setting of the locking device will occupy 7mm of the width of the functional module, and the effective layout of the printed board of the functional module in the chassis will waste a lot of area. However, the avionics chassis installed in the aircraft pylon is limited by the installation space and the size is not large. If the internal functional modules are effectively arranged on the printed board in the existing way, the device area is difficult to meet the functional and performance requirements. There is an urgent need for a new form of connection and fixing of functional modules inside the avionic...

AI Technical Summary

Problems solved by technology

[0002] The internal functions of the existing avionics chassis are all fixed to the motherboard through rectangular connectors and locking devices. The reserved space (10mm) will occupy the space of 37.5mm of the chassis, and the setting of the locking device will occupy the width space of 7mm of the functional module, and the effective layout of the printed board of the functional module in the chassis will waste a lot of area

However, the avionics chassis installed in the aircraft pylon is limited by the installation space and the size is not large. If the internal functional modules are effectively arranged on the printed board in the existing way, the device area cannot meet the functional and performance requirements.

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