Electromagnetic compatibility shielding cavity of a KVM all-in-one machine

Abstract

The invention discloses an electromagnetic compatibility shielding chamber of a KVM all-in-one machine, and specifically relates to the technical field of testing. The electromagnetic compatibility shielding chamber of the KVM all-in-one machine includes a cavity surrounded by an upper cover and a lower cover. The side walls of the upper cover and the lower cover are connected by connecting bars. The outer surface of the connection between the connecting strip and the upper cover and the lower cover is coated with copper foil. foil, and a conductive cloth pad is also pasted on the side wall of the head end of the cavity.

Description

technical field [0001] The invention relates to the technical field of testing, in particular to an electromagnetic compatibility shielding chamber of a KVM all-in-one machine. Background technique [0002] Generally speaking, the KVM all-in-one machine has a standard height of 1U, and a display screen, keyboard, and mouse are integrated in this space. It is the human-computer interaction core of the automatic test system. Due to its high integration and small footprint, it is suitable for transportation or storage. You only need to put the KVM all-in-one machine together and plug it into the system, and you only need to pull it out of the system during use, which is very convenient, fast and interactive, so it is widely used in automatic test systems. [0003] The existing technology fails to consider the design requirements of electromagnetic compatibility in the process of using the KVM all-in-one machine. The use of the KVM all-in-one machine is contradictory to the real...

AI Technical Summary

Problems solved by technology

[0003] The existing technology fails to consider the design requirements of electromagnetic compatibility in the process of using the KVM all-in-one machine. The use of the KVM all-in-one machine is contradictory to the realization of high-demand electromagnetic compatibility indicators, especially when relevant requirements such as GJB151A and GJB152A are required. At this time, electromagnetic compatibility has become an unsolvable problem. The human-computer interaction unit of the automatic test system can only compromise with electromagnetic compatibility, abandon the KVM all-in-one machine with considerable convenience advantages, and use other backward solutions

[0004] like figure 1 As shown, when the KVM all-in-one machine is pulled out and deployed, a cavity 7 with only the slide rail frame will be formed at the position originally used to accommodate the screen. This cavity 7 goes deep into the internal space of the system. From the perspective of electromagnetic compatibility, Such a large void will cause the system to lose the integrity of the shielding and become an important deterioration point of electromagnetic radiation disturbance, so how to meet the electromagnetic compatibility requirements in the automatic test system using the KVM all-in-one machine has become a major difficulty

Images