LED light source substrate fixing structure

The utility model relates to the technical field of LED lamps, in particular to an LED light source substrate fixing structure which comprises a bottom plate, a limiting block is installed on the upper portion of the bottom plate in an embedded mode, a silica gel column is fixedly installed on the front side of the limiting block, a side plate is fixedly installed at the front end of the silica gel column, a bent leaf spring is fixedly installed on the upper portion of the bottom plate, and the side plate is fixedly installed on the lower portion of the bottom plate. A bent leaf spring is arranged on the base plate, a supporting plate is fixedly installed above the bent leaf spring, a connecting frame is installed above the base plate in an embedded mode, and through the counter-acting force of the bent leaf spring to the supporting plate, the base plate is tightly attached to the bottom face of the sliding block under the counter-acting force of the bent leaf spring, so that the base plate is fixed between t