Universal plug box for installation of spaceflight measurement and control equipment

Abstract

The invention provides a universal plug box for installation of spaceflight measurement and control equipment, and aims at providing the equipment installing plug box high in versatility and interchangeability. L-shaped guide rails (1) are fixed to left and right sides of the inner wall of a plug box casing (8) respectively, base plate guide rails (3) are vertically fixed between the L-shaped guide rails in parallel, and modules (9) are fixed on the base plate guide rails from high to low. Right-angle connecting pieces (2) are fixed to four corners of the inner wall of the plug box casing respectively, front guide rails (4) are fastened to the left and right right-angle connecting pieces at the inner side of a front panel (10) in an up and down staggered structure, and a front module panel (6) is pressed from outside to inside onto the front panel and is fixedly connected to the front guide rails (4); rear guide rails (5) are fastened to the left and right right-angle connecting pieces at the inner side of a rear panel (11) in an up and down staggered structure, and a rear module panel (7) is pressed from outside to inside onto the rear panel and is fixedly connected to the rear guide rails.

Description

technical field [0001] The invention relates to a universal plug box mainly used for installing aerospace measurement and control equipment. Background technique [0002] At present, standard 19-inch subracks are mainly used in the field of aerospace measurement and control. The plug-in box is mainly used for the installation of ground station, ship-borne station, vehicle-mounted station and computer room measurement and control equipment. Subracks are generally available in heights ranging from 1U to 6U. The height of the subrack is selected according to the needs, and the layout design of the bottom plate and front and rear panels is carried out. The bottom plate layout of the traditional subrack is to mill out the mounting holes of the modules on the bottom plate according to the installation size and relative position of the various modules inside the sub-box. The bottom plate mounting holes range from thirty to fifty to as many as seventy or eighty. The layout of the...

AI Technical Summary

Problems solved by technology

To sum up, the design of traditional subracks has four shortcomings: first, poor versatility. The installation holes at the bottom of the subrack are determined according to the number and type of modules installed. The installation holes are determined and these holes are only suitable for installing the only corresponding module

If the type and quantity of modules installed inside the subrack change, all the installation holes at the bottom of the subrack need to be rearranged. Therefore, the traditional subrack does not have a universal bottom plate that meets the installation requirements of various modules.

The second is that the interchangeability of the subracks is poor. Various interfaces are installed on the front panel or rear panel of the subracks. The interface layout and interface types of the front and rear panels, as well as the screen and keyboard of the different types of subracks will not be exactly the same. Therefore, different Types of subracks are difficult to use interchangeably

The third is that the electromagnetic shielding of the traditional sub-box is insufficient, and there are too many mounting holes on the bottom plate. If the holes are not used, the shielding effect of the sub-box will be affected. At the same time, because the screen, keyboard, and fan of the traditional sub-box are not shielded, electromagnetic leakage and interference is very obvious

Fourth, the cost is relatively high. From the perspective of structural design, the adjustment of the local structure design of the box is a brand-new box design. The production of each box is not large and can only meet the only one kind of use demand. Each box is a customized product, resulting in a single set of box design and processing costs totaling tens of thousands or even tens of thousands; at the same time, the cycle of box processing and complete set may be as long as 2-4 hours due to the limitation of processing capacity or processing order. months or even longer, seriously affecting the overall progress of the project

Therefore, the use of traditional subracks to install measurement and control equipment has obvious disadvantages in versatility and interchangeability. The customized design and customized processing of subracks lead to a staggering waste of design costs, processing costs, and processing time.

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