WATER PURIFIER

PROBLEM TO BE SOLVED: To provide a water purifier which is provided with a power source part for supplying electric power to a display part or the like for displaying various kinds of information and in which a coin type battery to be stored inside the power source part can be loaded/unloaded easily. SOLUTION: This water purifier is provided with the power source part 2 composed of a case 3 and a cover 4. The case 3 has two opening/closing convex parts 8 arranged on the inside surface near an opening of the case 3. The cover 4 has two opening/closing side parts 7 which are arranged at two positions corresponding to those of the opening/closing convex parts 8 of the case 3 and each of which has a shape projected toward the bottom surface side of the case 3 from the side part 6 of the cover 4. An opening/closing concave groove 9 having a shape to be engaged with any of the opening/closing convex parts 8 of the case 3 is formed on the outside surface of each of the opening/closing side parts 7 of the cover 4. COPYRIGHT: (C)2005,JPO&NCIPI