Sandwich back plate device for connecting plug-in cards

Abstract

The invention discloses a sandwich back plate device for connecting plug-in cards. The sandwich back plate device comprises an intermediate back plate (1), and a first plug-in frame assembly (2) and a second plug-in frame assembly (3) for installing the plug-in cards, wherein the intermediate back plate (1) is connected between the first plug-in frame assembly (2) and the second plug-in frame assembly (3); and a connector (11) is arranged in the intermediate back plate (1) for electrically connecting a plug-in card in the first plug-in frame assembly (2) and a plug-in card in the second plug-in frame assembly (3). The sandwich back plate device provided by the invention is firm and reliable in connection, simple in structure, convenient in use and maintenance, and has low requirement for the thickness of the intermediate back plate, and the intermediate back plate has high bending rigidity and strength.

Description

technical field [0001] The invention relates to a high-density assembly structure in the field of high-performance computers and communication equipment, in particular to a sandwich-type backboard device for connecting plug-in boards. Background technique [0002] With the continuous improvement of the performance of high-performance computers, its computing performance has achieved a breakthrough from petaflops to petaflops, and a petaflop supercomputer is currently being developed. Such a large-scale calculation will lead to a sharp increase in the number of computer cabinets. Due to the limitation of the area of ​​the computer room, the number of cabinets cannot be too large. In order to increase the packing density of each computing cabinet, there is a demand for increasing the packing density of the computing cabinets. [0003] The methods for increasing the assembly density include: one is to increase the number of plug-in boards contained in each cabinet. For compu...

AI Technical Summary

Problems solved by technology

As for the double-sided plug-in middle backplane structure, since there are plug-in boards on both sides, the two sides of the middle backplane are densely covered with sockets, and the distance between the plug-ins on both sides and the middle backplane is generally only about 12.5mm. , which leads to restrictions on the size and location of the ribs

Therefore, for the double-sided plug-in midplane structure, the reinforcement structure is not only very complicated, but also for each midplane, due to the different sockets, the reinforcement structure is inconsistent, which increases the complexity of design and processing.

Of the above three backplane installation structures, the second structure has lower structural strength and rigidity, and the first and third structures increase the design difficulty and production cost to varying degrees

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