COOLING DEVICE

To provide a cooling device that even when a pump stops, supplies a coolant to a cooling unit to continue cooling.SOLUTION: A cooling system 100 includes a cooling device 10 including a first cooling unit 11A, a second cooling unit 11B, a first pump unit 112A, a second pump unit 12B, a branch unit 3, a first flow passage unit 20A, a second flow passage unit 20B, a merging unit 4, and a connection unit 2. The branch unit divides a coolant into two. The first flow passage unit connects the first cooling unit with the first pump unit and one of the divided coolant passes through the first flow passage unit. The second flow passage unit connects the second cooling unit with the second pump unit and the other of the divided coolant passes through the second flow passage unit. The merging unit merges together the one and the other coolants that have passed through the first flow passage unit and the second flow passage unit, respectively. The connection unit connects fluidically the first flow passage unit and the second flow passage unit between the branch unit and the merging unit.SELECTED DRAWING: Figure 1 【課題】ポンプが停止した場合においても、冷媒を冷却部に供給し、冷却を継続する冷却装置を提供する。【解決手段】冷却システム１００において、冷却装置１０は、第１冷却部１１Ａと、第２冷却部１１Ｂと、第１ポンプ部１１２Ａと、第２ポンプ部１２Ｂと、分岐部３と、第１流路部２０Ａと、第２流路部２０Ｂと、合流部４と、接続部２と、を有する。分岐部は、冷媒を２つに分流させる。第１流路部は、第１冷却部と第１ポンプ部とを接続し、分流した冷媒の一方が通る。第２流路部は、第２冷却部と第２ポンプ部とを接続し、分流した冷媒の他方が通る。合流部は、第１流路部及び第２流路部とをそれぞれ通った冷媒を合流させる。接続部は、分岐部と合流部との間で、第１流路部と第２流路部とを流体的に接続する。【選択図】図１