The utility model discloses an LED (light-emitting
diode)
ceramic light source with a compact structure. The LED
ceramic light source comprises a base, and a power supply module, an LED light-emitting plate, a lens
assembly and a light-transmitting cover which are arranged on the base, the LED light-emitting plate comprises a
ceramic substrate and a plurality of
LED lamp beads which are evenly distributed on the
ceramic substrate at intervals in an array mode or a radial mode. The light-transmitting cover is coaxially installed on the upper end face of the
ceramic substrate through a
fastener. An annular leakage-proof groove is formed in the
peripheral edge of the upper end face of the
ceramic substrate, a sealing convex ring matched with the leakage-proof groove is arranged on the end face of the bottom of the light-transmitting cover, and the sealing convex ring extends into the leakage-proof groove in a matched mode and is limited; the
LED lamp beads are directly integrated on the ceramic substrate in a
welding mode and the like, the structure is simplified, the thin design of the
light source structure is achieved, the annular leakage-proof groove is formed in the upper end of the ceramic substrate, and the groove is precisely matched with the sealing convex ring at the bottom of the light-transmitting cover to form an effective sealing device. And the problem of light leakage caused by gaps or
assembly errors is prevented.