A fluid heater (100) includes at least one heating element (10) and at least one casing (20). The casing (20) includes a first and a second portion (20a) and (20b), a partition groove (22), an inlet and an outlet (24) and (26). The first and second portion...

A battery cooling device capable of cooling an entire battery more evenly is provided. A battery cooling device (30) includes a one-side heat exchanger (40) configured to cool a one side surface (20u), and an other-side heat exchanger (50) configured to co...