Integral filter type ice maker for refrigerator and manufacturing method for the same

A refrigerator, comprising:

• a body;
• a valve;
• a tank configured to store water;
• a refrigeration compartment door;
• a refrigerator compartment enclosed by the refrigeration compartment door and the body;
• a freezer compartment coupled to the refrigerator compartment;
• and
• a filter-integrated ice maker inside the body, comprising:
• an ice making assembly for making ice using cold air;
• an ice bucket for containing the ice made by the ice making assembly;
• a discharge assembly for discharging the ice;
• a case enclosing the ice bucket and the ice making assembly, the case disposed behind the discharge assembly in the refrigeration compartment;
• a filter housing integrally and fixedly attached to the case, the filter housing disposed outside the case;
• a water filter detachably coupled to an inside of the filter housing and configured to purify water to store purified water in the tank;
• a supply channel for supplying water supplied from a water source to the water filter;
• a drain channel for discharging water purified with the water filter;
• and
• a mutual clamping unit for clamping the water filter and the filter housing,
• wherein the valve is configured to allow and to prevent the purified water stored in the tank to flow to the filter-integrated ice maker, and wherein the tank and the valve are disposed on a same side of the refrigerator as the filter-integrated ice maker, and wherein the mutual clamping unit comprises a clamping protrusion protruding from a rear surface of the water filter and a clamping groove disposed in the filter housing and coupled to the clamping protrusion.