Filter module and air purifier having the same
A filter module and an air purifier according to an aspect of the present disclosure include a supply roller and a recovery roller, a filter wound and installed on the supply roller and the recovery roller, so that it can be used without replacing and cleaning the filter module for a long period of time by allowing a section used in the filter to be recovered in the recovery roller, and also a section not used in the filter to be supplied from the supply roller.
1. An air purifier comprising:
a main body comprising an inlet through which air is sucked; and
a filter module installed to be replaceable inside the inlet,
wherein:
the filter module comprises a supply roller and a recovery roller, and a filter on which two ends of the filter are wound and installed on the supply roller and the recovery roller;
the main body further comprises a main housing having an opening on a front surface of the main housing, and a suction cover having the inlet of the main body and the suction cover is detachably installed in a mounting portion of the main housing to cover the opening of the main housing;
the filter module further comprises a supply housing covering the supply roller, a recovery housing covering the recovery roller, and a rewind device that allows the filter to rewind the supply roller;
the main body further comprises a rewind release device that allows rewinding of the filter to be stopped;
the rewind device comprises:
a locking member rotatably installed on the supply roller, the locking member including a locking part in which a gear is formed on its outer circumferential surface;
a rewind spring elastically supporting the locking member in the circumferential direction; and
a locking hole formed on the supply housing to limit a rotation of the locking member; and
the rewind release device comprises:
a release pin movably installed in the mounting part of the main housing; and
a release spring elastically supporting the release pin.
2. The air purifier according to claim 1 , further comprising:
a drive device configured to drive the supply roller and the recovery roller,
wherein the drive device comprises a drive motor configured to generate a rotational force, a drive pulley connected to an axis of the drive motor, a driven pulley connected to an axis of the recovery roller, and a timing belt configured to transmit the rotational force from the drive pulley to the driven pulley.
3. The air purifier according to claim 1 , wherein the filter module further comprises a latch device disposed on at least one of the supply roller and the recovery roller to limit reverse rotation.
4. The air purifier according to claim 3 , wherein the latch device comprises a latch gear connected to any one axis of the supply roller and the recovery roller, a latch lever engaged the latch gear to limit the reverse rotation of the latch gear, and a latch spring elastically supporting the latch lever.
5. The air purifier according to claim 1 , wherein the filter module further comprises a filter housing in which the supply roller and the recovery roller are rotatably installed, and
wherein the filter housing comprises a supply part accommodating the supply roller, a recovery part accommodating the recovery roller, and an opening provided to correspond to the inlet between the supply part and the recovery part.
6. The air purifier according to claim 5 , wherein the filter comprises a filter part configured to collect foreign substances, and two cover parts connected to two ends of the filter part to cover the opening.
7. The air purifier according to claim 1 , wherein the filter is selected from the group consisting of at least one of a pre-filter, a HEPA filter, a deodorizing filter and an antibacterial filter.
8. The air purifier according to claim 1 , wherein the main body further comprises an electrostatic filter disposed in front of the filter.
9. The air purifier according to claim 8 , wherein the filter comprises a pre-filter, and the filter module further comprises a HEPA filter disposed behind the pre-filter.
10. The air purifier according to claim 1 , wherein the main body further comprises a movable housing provided with the inlet of the main body on a front surface and movably installed in the opening of the main housing.
11. The air purifier according to claim 10 , wherein the movable housing comprises a filter installation part provided in a slot shape on a side of the movable housing and in which the filter module is detachably installed.
12. The air purifier according to claim 1 , wherein the recovery housing is detachably coupled to the supply housing.
13. The air purifier according to claim 1 , wherein the filter module comprises permanent magnets disposed in the supply housing and the recovery housing, respectively.
14. The air purifier according to claim 1 ,
wherein the supply housing and the recovery housing are detachably coupled inside the opening.
15. The air purifier according to claim 14 , wherein the main body comprises an ultraviolet lamp provided at the bottom of the front surface, and
the recovery housing comprises a transparent window provided at a position corresponding to the ultraviolet lamp.