PROBLEM TO BE SOLVED: To provide a hydroponic device having simple operation, high reliability, excellent maintainability, and high temperature control efficiency.SOLUTION: Provided is a hydroponic device having: a detachable water tank for storing culture solution a plurality of porous members having water holding properties a holding member which has a plurality of mounting holes by which the porous member can be detachably attached at a position contacting at least the culture solution stored in the water tank and has heat insulating properties and light shielding properties a container having heat insulating properties and light shielding properties which is installed to an outer periphery portion of the water tank an electronic cooling device installed to a side portion of the water tank and a heat exchanger plate extending from the electronic cooling device to a bottom surface of the water tank.COPYRIGHT: (C)2014,JPO&INPIT【課題】操作がシンプルで、信頼性が高く、メンテナンス性に優れ、かつ温度制御効率も良い水耕栽培装置を提供する。【解決手段】培養液を溜めるための着脱可能な水槽と、保水性を有する複数の多孔質部材と、前記多孔質部材を、少なくとも前記水槽に溜めた前記培養液に接触する位置に、着脱可能に取り付けることが可能な取付穴を複数有する断熱性・遮光性を有する保持部材と、前記水槽の外周部に設置された断熱性・遮光性を有する容器と、前記水槽の側部に設置された電子冷却装置と、前記電子冷却装置から前記水槽の底面に延びる伝熱板と、を有する水耕栽培装置。【選択図】図1
