Combined structure of support for electrical & electronic machine receptacle cabinet

Abstract

A bracket-joint structure for a storage cabinet for electrical and electronic equipment that simplifies the shape of the end of the bracket and can obtain high strength and good water resistance without complicated cutting. In order to achieve the purpose, the ends of the outer sides 4 of the three mutually vertical supports (1a), (1b), (1c) that constitute the frame of the storage cabinet are used to form the plane formed by the other two supports at ±45° The 2 planes of the corner are cut to form the shape of the spire. By joining these corresponding ends directly, or through corner pieces (20) of the same shape as said ends, a strong corner is formed.

Description

technical field [0001] The present invention relates to a frame combination structure of an electrical and electronic equipment storage cabinet with a rectangular parallelepiped frame structure by combining vertical, lateral, and front-to-back frames. Background technique [0002] General electrical and electronic machine storage cabinets, such as control panel cabinets, communication panel cabinets, and high-voltage power distribution cabinets, form a rectangular parallelepiped frame structure by combining 12 hollow brackets with a quadrangular cross-section. The end of each bracket is cut at an angle of 90 degrees to its length direction, and the joint between the ends is formed by inserting corner parts with three mutually perpendicular short arms at the end of each bracket, or using connecting parts . [0003] Around the bracket, the outer wall of the storage cabinet equipped with side panels, doors, etc. is installed, and the machine installation rail and the internal ...

AI Technical Summary

Problems solved by technology

However, when the machine mounting hole is formed on the hollow bracket, since the hand cannot be put into it for operation, there is a problem that a special nut must be used, or a special structure must be used for machine installation.

On the other hand, although the open bracket without the hollow part can easily install the machine without using special nuts, etc., there is a problem that it does not have sufficient strength.

[0008] (3) In the traditional vertical support, such as the support with L-shaped water edge groove, since the curved plane is in contact with the seal, the contact area is large, so there is a need to add additional seals in order to ensure a comprehensive seal. The problem of high contact force

[0009] (4) On the other hand, although the bracket with the edge of the flat water tank has a narrow contact surface between the front end and the sealing member, a reliable seal can be formed with a small contact force, but it is difficult to ensure the formation of the water retaining part ( The part that constitutes the water flow path in the vertical support)

[0011] (6) However, there is a problem that it is not easy to obtain sufficient strength and rigidity in the bracket joint construction in which all the bracket ends are screwed to the corner connectors

As for the bracket joint structure that combines all the bracket ends by welding, although sufficient strength and rigidity can be obtained, there is a problem that it is difficult to perform necessary sandblasting on the welded part, resulting in labor and time-consuming and increased manufacturing costs. question

In particular, brackets for electrical and electronic equipment storage cabinets often have very complicated cross-sectional shapes, so parts that cannot be treated by sandblasting after welding will be formed on the surface of the bracket, resulting in deterioration of the appearance

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