Steering engine, ultralow-temperature steering engine controller and small-space asymmetric PCB structure thereof

Abstract

The invention relates to a steering engine, an ultralow-temperature steering engine controller and a small-space asymmetric PCB structure thereof. The PCB structure comprises a plurality of rigid circuit boards, the rigid circuit boards are sequentially connected through flexible circuit boards, the flexible circuit board between every two adjacent rigid circuit boards is bent to enable the rigid circuit boards to be stacked and arranged at intervals, and the rigid circuit boards are relatively fixed through the mounting components; according to the PCB structure, the rigid-flexible composite structure is adopted, and compared with an existing mode of bonding wires between pure rigid circuit boards, the PCB structure has the advantages that bonding wires, welding spots and working hours can be reduced, the installation time is saved, and the mass is reduced; the PCB structure is mounted as a single component, so that mutual staggering of the signal lines of the plate is reduced, and the possibility of wire welding operation errors of workers is greatly reduced; compared with an existing connector connecting structure, the weight can be effectively reduced, the connecting reliability is improved, and the requirements for light weight, miniaturization and ultralow-temperature environment use of the steering engine controller are met.

Description

technical field [0001] The invention relates to the technical field of digital electric servo control, in particular to a steering gear, an ultra-low temperature steering gear controller and a small-space asymmetric PCB structure thereof. Background technique [0002] In recent years, with the rapid development of aerospace technology, the rudder system for UAVs is developing rapidly in the direction of miniaturization and light weight, and the requirements for environmental adaptability are becoming more and more stringent. As a key actuator, the electric rudder system's performance directly affects the overall performance of the UAV. [0003] At present, the steering gear controller circuit board adopts a purely rigid circuit board, and the boards can be connected by welding wires. A total of 64 inter-board connections are required. Interlaced with each other, it is prone to electromagnetic interference problems. In addition, the weight is too large to meet the requiremen...

AI Technical Summary

Problems solved by technology

[0003] At present, the steering gear controller circuit board adopts a purely rigid circuit board, and the boards can be connected by welding wires. A total of 64 inter-board connections are required. Interlaced with each other, it is prone to electromagnetic interference problems. In addition, the weight is too large to meet the requirements of light weight and miniaturization; or you can choose a board-type design, and the circuit boards are connected by connectors. Although the inter-board welding wires are avoided, However, increasing the connector means increasing the weight, and the connection method of the connector will also cause a decrease in reliability, and it cannot meet the requirements of light weight and miniaturization of the steering gear controller.

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