| 摘要 |
A bulb structure of assembling-type car lamp includes a lamp housing and a bulb unit. The bulb unit includes a mounting base, a bulb holder, and a bulb. The mounting base includes electric pins, a forward raised seat, and a rearward protruded annular ring portion. The annular ring portion is externally provided with anti-slip ribs to facilitate easy turning and assembling of the bulb unit to the lamp housing. The bulb holder includes a holding seat and an adjusting seat connected to the mounting base and the bulb, respectively; and the bulb is electrically connected to the electric pins. By adjusting the adjusting seat relative to the holding seat, the bulb can be adjusted in position and focal length. A cover plate is closed to a rear open end of the annular ring portion to isolate joints of the bulb and the electric pins from external air, dust and water.
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