| 摘要 |
According to an embodiment of the present invention, provided is an air vent cap comprising: a cap housing combined with an outer wall of a bulb housing of a lighting device having through holes for air circulation; an air inlet formed to penetrate through the outer wall of the cap housing with a specific area, let external air flow therein and discharge air in a reflection area inside the bulb housing to the outside of the cap housing; a bug preventive mesh configured inside the outer wall of the cap housing to cover the air inlet; a flow path wall having a partially open space of the air inlet with a height corresponding to the outer wall, separated apart from the outer wall to cover the through holes and form an air circulation flow path through which air flows between the air inlet and the through holes; a foreign substance entry preventive filter configured in an open part of the flow path wall to filter foreign substances in the air flowing through the air inlet; and a sealing cap configured between an open surface and the outer wall of the bulb housing to form an air vent flow path through the air inlet, the air circulation flow path, the open part of the flow path wall and the air circulation through holes while covering an upper part of the air circulation flow path between the outer wall of the cap housing and the flow path wall. |
