An anti-seismic class I industrial chassis suitable for power station/power plant instrument and control system
A technology of instrument control system and industrial chassis, which is applied in the direction of magnetic field/electric field shielding, electrical equipment shell/cabinet/drawer, electrical components, etc., to achieve enhanced strength, improved seismic performance, and compact and firm structure.
Active Publication Date: 2019-01-04
STATE NUCLEAR POWER AUTOMATION SYST ENGCO
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Problems solved by technology
[0004] Aiming at the defects of the existing industrial cabinets, the technical problem to be solved by the present invention is to provide an industrial cabinet with overall anti-extreme environmental conditions, anti-earthquake and anti-electromagnetic interference capabilities, which is suitable for power stations or power plant instrument control systems, etc. Occasions with high safety and reliability requirements
Method used
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Embodiment Construction
[0022] Such as Figure 1 ~ Figure 3 As shown, an anti-seismic class I industrial chassis suitable for power station / power plant control system includes a chassis 1, a backplane and a clip guide rail 5, and also includes an upper fan frame 3 and a lower fan frame 2 with built-in fans, and an upper fan frame 3 Located at the top of the case, the lower fan frame 2 is located at the bottom of the case, and the upper and lower fan frames 2 / 3 are fixedly connected to the case 1 through stud bolts 14 / 15 respectively to reduce the vibration caused by the fan operation. The rear panel 13 of the upper fan frame 3 and the front panel 6 of the lower fan are provided with circular vents, and the apertures of the vents are all millimeter-level small round holes, which can prevent electromagnetic noise with a wavelength greater than 20 times the aperture from entering the chassis.
[0023] The guide rails of 3 or 4 clips are designed to be integrated into one guide rail assembly ( Figure 5...
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The invention relates to an industrial case, belongs to the technical field of industrial instrument control equipment cases, and aims to improve the anti-seismic capacity, electromagnetic interference resistance and ventilation cooling of the industrial case. The industrial case is characterized in that the upper, lower, left and right outer side surfaces of the case are welded into a whole in a seamless manner by a metal plate; an upper fan bracket and a lower fan bracket in the case are fixedly connected with the case through stud bolts respectively; card guide rails are connected side by side into a whole to form a card guide rail component between the upper fan bracket and the lower fan bracket; metal shielding bars are arranged in mounting clearances among front and back panels of the fan brackets and card panels; a through hole position on a guide plate arranged between the lower fan bracket and the card guide rail component corresponds to a clearance between cards on the card guide rail component. The outer side surfaces of the case are welded into a whole in the seamless manner through the metal plate, so that the internal structure is compact and firm, the anti-seismic performance is good, and internal components can be prevented from being influenced by extreme temperature conditions, continuous vibration environment and unexpected shock environment.
Description
technical field [0001] The invention belongs to the technical field of industrial control equipment, and in particular relates to a cabinet suitable for installation and protection of electric equipment with high safety and reliability requirements such as power station or power plant instrument control system. Background technique [0002] For a complete control system platform, the chassis plays an important role in ensuring the normal operation of the system. First, the chassis provides a suitable location for each component inside, thereby protecting the internal components from a variety of external environments and conditions, including various extreme temperature conditions, continuous vibration environments, and accidental shock environments. In addition, the chassis is also an integral part of the system EMC design. Because industrial chassis are often used in harsh environments and will encounter more complex environmental factors, compared with general commercial...
Claims
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IPC IPC(8): H05K5/00H05K7/20H05K9/00
Inventor 程灿康治安查章其韩寅驰王佳承许朱慧
Owner STATE NUCLEAR POWER AUTOMATION SYST ENGCO