Bracket and connector for modular luminaire and modular luminaire with bracket and connector

A bracket for a modular luminaire, comprising:

• a polyhedral module and a connector connected to the polyhedral module;
• the polyhedral module is a polyhedron internally provided with a cavity;
• each surface of the polyhedron is provided with a stepped through-hole connected to the cavity, thereby forming a first annular protrusion at a junction of the stepped through-hole and the cavity;
• the connector comprises a connector body having a cylindrical shape;
• the connector body is provided with a third through-hole along an axial direction;
• on an outer periphery of the connector body, a second annular protrusion, a third annular protrusion, a fourth annular protrusion, and a fifth annular protrusion protrude outwards in a radial direction and are formed successively from a left end portion to a right end portion of the connector body;
• the second annular protrusion, the third annular protrusion, the fourth annular protrusion and the fifth annular protrusion are spaced apart;
• a left end of the connector is inserted into the stepped through-hole of the polyhedral module, and the first annular protrusion is engaged between the second annular protrusion and the third annular protrusion;
• the connector is detachably connected to the polyhedral module;
• and
• a plurality of the polyhedral modules are interconnected via the connector to form the bracket for the modular luminaire,
• wherein the bracket further comprising a cover sheet;
• the cover sheet comprises a sheet body and a snap-fit portion connected to the sheet body;
• the sheet body is a decorative sheet having a size identical to the surface of the polyhedral module on an outer surface of the bracket for the modular luminaire;
• the snap-fit portion comprises a cylinder provided on the sheet body;
• a sixth annular protrusion and a seventh annular protrusion are formed radially outward on an outer periphery of the cylinder;
• the sixth annular protrusion is spaced apart from the seventh annular protrusion;
• and
• the snap-fit portion is inserted into the stepped through-hole of the polyhedral module;
• the first annular protrusion is engaged between the sixth annular protrusion and the seventh annular protrusion;
• the cover sheet is connected to the polyhedral module in a snap-fit manner.