Patent ID: 11931678
Assignee: nan
Field: Chemical engineering (Chemistry)
Classification: CPC B  C  F | IPC B  C  F

Claim 0:
1. A filter unit comprising:
a filter which purifies water:
a filter head which is disposed on one end portion of the filter, and comprises an inlet port which supplies raw water to the filter and is formed to protrude from one side thereof, and an outlet port which discharges pure water purified by the filter and is formed to protrude from another side thereof;
a filter housing which is formed with a filter accommodation space in which the filter is accommodated;
a filter bracket which is coupled to the filter housing, and comprises an inlet port coupling part to which the inlet port is coupled rotatably, and an outlet port coupling part to which the outlet port is coupled rotatably; and
a filter door which is coupled to the filter housing to open and close the filter accommodation space,
wherein the filter bracket is further formed with a filter coupling part to which the filter is detachably coupled,
wherein an outer circumferential surface of one of the inlet port and the outlet port is formed with a rotation location regulating projection,
wherein the inlet port is assembled with the inlet port coupling part and the outlet port is assembled with the outlet port coupling part, and one of the inlet port coupling part and the outlet port coupling part being assembled with the one of the inlet port and the outlet port formed with the rotation location regulating projection is formed with a hole or groove which prevents assembly locations of the inlet port and the outlet port from being interchanged with each other and regulates the rotation location of the rotation location regulating projection when the filter is coupled to the filter coupling part,
wherein the filter housing comprises a front part, and a rear part which is disposed at a location where a lower plate thereof is lower than the front part,
wherein the front part is formed with the filter accommodation space, and an opening which extends rearward from the filter accommodation space,
wherein a part of the filter is disposed in the opening, when the filter is accommodated in the filter accommodation space,
wherein the filter door is disposed below the front part to cover the filter accommodation space and the opening,
wherein the filter bracket is disposed above the front part and the rear part to cover the rear end portion of the opening,
wherein a first sliding mount, on which first sliding grooves configured to be coupled to a home appliance are formed at both sides thereof, is formed to protrude from the outside of the filter housing, and
wherein a second sliding mount, on which second sliding grooves configured to be coupled to the home appliance are formed at both sides thereof, is formed to protrude from an outside of the filter bracket,
wherein the filter unit further comprises an inlet tube through which the raw water is moved, and an outlet tube through which the pure water is moved,
wherein the filter housing is formed with an inlet tube coupling part to which the inlet tube is coupled, and an outlet tube coupling part to which the outlet tube is coupled,
wherein the inlet tube coupling part and the outlet tube coupling part are formed to have opened insides opposite to each other,
wherein the filter housing is formed with a tube anti-separation projection which prevents the inlet tube and the outlet tube from being separated, and
wherein sides of the tube anti-separation projection are located outward from the inside of the inlet tube coupling part and the inside of the outlet tube coupling part.