ELECTRIC CABINET FRAME STRUCTURE Russian patent published in 2020 - IPC H02B1/01 H02B1/30 

FIELD: electrical engineering.

SUBSTANCE: metallic collapsible frame of electric cabinet is made in form of parallelepiped, consists of twelve connected profiles. Vertical profiles (2) have C-shaped cross-section, side (3) and transverse (4) horizontal profiles have G-shaped section. Vertical profiles on each end have two face cutouts (15), four holes of round shape (11) and two holes of rectangular shape (13) on flanges (9) of profile, three holes of rectangular shape (13) on walls (10) of profile. On each end of side horizontal profiles there are two end ledges (14), one end cut (15), three holes of round shape (11, 12) on flanges (9) of profile, one hole of rectangular shape (13) on wall (10) of profile. At each end of transverse horizontal profiles there are three end ledges (14), two end cuts (15), two holes of round shape (11) on wall (10) of profile, one hole of round shape (12) and one hole of rectangular shape (13) on flanges (9) of the profile. Angular joints of frame are produced due to fact that end ledges of side horizontal profiles are inserted into holes of rectangular shape in shelves of vertical and transverse horizontal profiles. End projections of transverse horizontal profiles are inserted into holes of rectangular shape in walls of side horizontal and vertical profiles. In each angular joint of frame through holes of round shape (11) two screws (5) vertical profile is fixed to transverse horizontal profile from outside of frame, other two screws (5) attach vertical profile to side horizontal profile from inner side of frame. It is preferable if free holes of round shape (12) in their flanges (9) coinciding at connection of horizontal profiles are used in the lower part of the frame for its anchoring to the base, and in the upper part of the frame for installation of transport eye-bolts.

EFFECT: technical result consists in improvement of deformation rigidity without using additional angular joints.

1 cl, 8 dwg