Light-emitting module based on edge interference connection, electric appliance cavity and light-emitting device

The utility model discloses a light-emitting module based on edge interference connection. The light-emitting module comprises an electric appliance cavity and a light-emitting device. The light-emitting module comprises an edge fastening structure, and a lens plate, a light-emitting plate and a radiator which are stacked in sequence. The lens plate is connected with the radiator through an edge fastening structure; the edge fastening structure comprises an edge plug connector and an edge slot; the edge plug connector is arranged on the lens plate; the edge slot is arranged on the radiator; a plurality of partition grooves are formed in the outer edge of the edge connector clip, and the insertion block units are separated out. And a plurality of partition blocks are arranged in the edge slot to divide slot units. And each insertion block unit is inserted into the corresponding slot unit to form interference fit. According to the utility model, the edge plug connectors are arranged on the lens plate, the edge