Two-piece type plug-in bus duct

Abstract

The invention discloses a two-piece type plug-in bus duct. The two-piece type plug-in bus duct comprises a shell and conductors. The shell comprises a main shell body and an auxiliary shell body. The main shell body comprises an upper main shell plate, a lower main shell plate and a middle main shell plate. The auxiliary shell body comprises an upper auxiliary shell plate, a lower auxiliary shell plate and a middle auxiliary shell plate. One end of the upper auxiliary shell plate and one end of the lower auxiliary shell plate are respectively provided with a protruding strip, the middle of the upper auxiliary shell plate and the middle of the lower auxiliary shell plate are respectively provided with a sealing strip groove, sealing strips are arranged in the sealing strip grooves, the auxiliary shell body is assembled in a groove of the main shell body in a plug-in mode so that a storage cavity can be formed, the multiple conductors are arranged in the storage cavity in parallel, and waterproof cushions are arranged at the two ends of each conductor. The two-piece type plug-in bus duct is attractive in appearance, excellent in structural performance and electrical performance, easy to assemble, convenient to use, practical, waterproof, dustproof, good in heat dissipation, high in structural strength, safe, reliable and high in protection grade, and safety operation coefficients of a power distribution equipment system are remarkably increased.

Description

technical field [0001] The invention relates to a power transmission and distribution equipment, in particular to a plug-in bus duct. Background technique [0002] As we all know, since the development of bus duct products, the shell materials are mainly divided into three types: cold-rolled steel plate, aluminum-magnesium alloy and full resin casting. There are two main product structures for profile shell-intensive bus ducts: the first one is composed of four profiles, that is, the upper and lower sides use H-shaped profiles, and the side panels on both sides are assembled with U-shaped profiles riveted by rivets or fixed by bolts. There are those with heat dissipation structure and those without heat dissipation structure; the second type is composed of two profiles, that is, the H-shaped profile is used on one side and the U-shaped side plate is used to assemble the profile with rivets or screws. The U-shaped profile side plate has With heat dissipation structure an...

AI Technical Summary

Problems solved by technology

[0003] Based on the product structure of the above two types of aluminum-magnesium alloy shell-intensive busway, although the products on the market can meet the general electrical requirements, some products with protection levels cannot meet the requirements. Actual use requirements, when the technical indicators reach IP54 or IP65 and IP66, the current busbar product manufacturers still mainly rely on waterproof glue and glass glue on the joints to solve the protection performance problems, coupled with the structural design defects of the busbar shell and the manufacturing process. Ensure the flatness of the corners and the pressing edges and the overall airtight performance. When the equipment is in normal operation, the body temperature of the busway will rise soon, so that the waterproof glue will gradually age and fall off and no longer have high protection and sealing performance. In addition, the structure of the equipment body Due to thermal expansion and contraction of conductors, the airtight performance of the busbar structure is further reduced, so that the protection level of the busbar cannot meet the requirements of IP54, IP65, IP66, etc. for the waterproof and dustproof function of the busbar system, resulting In other aspects, serious electrical accidents or even short-circuit explosions of the busbar system due to water leakage, dripping, and water ingress into the busbar equipment have brought potential safety hazards to the electrical system

[0004] In addition, the traditional busway does not have an intelligent busway temperature control alarm wiring trough, which cannot meet the current intelligent development, and cannot ensure that the joints of the busway shell are tightly matched, resulting in water seepage through the fine seams, reducing the protection level of the busway, causing electrical short circuits, and even causing Serious electrical accidents, in order to solve this problem, most manufacturers adopt the method of applying waterproof glue or glass glue at the joint edge seams. Factors such as the riser being in a high temperature state for a long time cause the waterproof glue or glass glue to age and fall off quickly, so that the system cannot meet the protection requirements, and the busway system brings safety hazards

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