Switchgear, pressure relief devices and base plates and cover plates for pressure relief devices
A technology of pressure relief device and switchgear, which is applied to the setting of switchgear, switchgear, electrical components, etc., which can solve the problems such as troublesome assembly of pressure relief device, and achieve the effect of simple and convenient assembly process
Active Publication Date: 2019-05-17
XUJI GRP +2
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Problems solved by technology
[0004] The purpose of the present invention is to provide a pressure relief device to solve the problem in the prior art that the installation of the sealing plate needs to be realized by screws, resulting in troublesome assembly of the pressure relief device; the purpose of the present invention is also to provide a pressure relief device using the switchgear; the purpose of the present invention is also to provide a substrate and sealing plate used in the pressure relief device
Method used
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[0030] Examples of switchgear are Figure 1~6 As shown: the switchgear in this embodiment is a high-voltage switchgear, including a cabinet (not shown in the figure) and a pressure relief device. The pressure relief device includes a base plate 1 and a sealing plate 2, wherein the base plate 1 is fixed on the top of the cabinet On the top plate, the base plate includes a base plate body provided with a pressure relief port 7, and the pressure relief port 7 is divided into a plurality of grid hole structures by criss-cross partition plates 6 integrally provided with the base plate body. The sealing plate includes a sealing plate body with one end as the connection end and the other end as the free end, which is arranged at the pressure relief port. The substrate body is provided with three long guide grooves 8 extending perpendicular to the thickness direction of the substrate. In this embodiment, the guide The guiding direction of the long grooves 8 is the left-right direction...
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The invention relates to a switch cabinet, a pressure relief device and a substrate and seal plate of the pressure relief device. The pressure relief device of the switch cabinet comprises the substrate and the seal plate, wherein the substrate comprises a substrate body provided with a pressure relief opening; the seal plate comprises a seal plate body which is arranged at the pressure relief opening, one end of the seal plate body is a connection end, and the other end of the seal plate body is a free end; at least one guide trough which extends along the direction vertical to the thickness direction of the substrate is arranged in the substrate body; the connection end of the seal plate body is provided with a connecting flange which is used for passing through the corresponding guide trough along the thickness direction of the substrate; and a clamping groove for clamping the substrate body in the guide movement process of the connecting flange along the guide trough is arranged in one end of the connecting flange. By the switch cabinet and the pressure relief device, the problem of an assembly trouble of the pressure relief device due to the fact that installation of the seal plate needs to be achieved through bolts in the prior art is solved.
Description
technical field [0001] The invention relates to a switch cabinet, a pressure relief device and a base plate and a sealing plate of the pressure relief device in the field of power distribution. Background technique [0002] In switchgear, although internal fault arcing accidents do not occur frequently, they cannot be completely avoided. Once an internal fault arcing accident occurs, the fault arc can form high pressure and high temperature in a short period of time. In order to prevent the pressure on the switchgear And the injury of the corresponding personnel, it is necessary to install the corresponding pressure relief device on the switch cabinet. [0003] Similar switch cabinets such as "a low-voltage switch cabinet with automatic pressure relief function" disclosed in Chinese patent CN203351983U, the switch cabinet includes a cabinet, the top of the cabinet is provided with a pressure relief device, and the pressure relief device includes a pressure relief port. One ...
Claims
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IPC IPC(8): H02B13/025
CPCH02B13/025
Inventor 吴小钊李克周行宋晓生康在强刘忠雷牛艳红周志洋李如壁姜丹
Owner XUJI GRP