Patent ID: 8151517
Filing Date: 2012-04-10
Classification: A01G,Y02P

Abstract:
1. A plant growth system comprising: multiple shelf parts that are arranged in a chamber and on which plants are to be placed; a light source arranged above each shelf part for irradiating the plants with light for growth; a cover that is arranged to surround the light source wherein multiple ventilation bores are formed and at least one part of the cover is a light-permeable transparent wall; an air inlet that opens in a space within the cover for sucking air in the space; a circulation channel that cools down air sucked from the air inlet and blows out cooled air into the chamber; and an air flow direction switch part that switches from an air sucking state to suck the air in the space into the circulation channel through the air inlet when the light source is lit to an air blowing out state to blow out air in the circulation channel into the cover through the air inlet when the light source is turned off.