US 12,440,596 B2
Air purification module and refrigerator comprising the same
Ji Won Kim, Ansan-si (KR); Jae Hak Jeong, Ansan-si (KR); Sang Cheol Shin, Ansan-si (KR); and Woong Ki Jung, Ansan-si (KR)
Assigned to SEOUL VIOSYS CO., LTD., Ansan-si (KR)
Filed by SEOUL VIOSYS CO., LTD., Ansan-si (KR)
Filed on Sep. 27, 2023, as Appl. No. 18/475,693.
Application 18/475,693 is a continuation of application No. 17/072,688, filed on Oct. 16, 2020, granted, now 11,771,795.
Application 17/072,688 is a continuation of application No. PCT/KR2019/004578, filed on Apr. 16, 2019.
Claims priority of application No. 10-2018-0044391 (KR), filed on Apr. 17, 2018.
Prior Publication US 2024/0123109 A1, Apr. 18, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61L 9/20 (2006.01); B01D 53/00 (2006.01); B01D 53/88 (2006.01); F25D 17/04 (2006.01)
CPC A61L 9/205 (2013.01) [B01D 53/007 (2013.01); B01D 53/885 (2013.01); F25D 17/042 (2013.01); A61L 2209/12 (2013.01); A61L 2209/14 (2013.01); B01D 2255/802 (2013.01); B01D 2259/804 (2013.01); F25D 2317/0417 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An air purification device, comprising:
a housing having an interior space and provided with an air inlet and an air outlet, the interior space including a first region and a second region;
a blowing fan disposed in the first region of the housing without being disposed in the second region and configured to allow air to flow from the air inlet to the air outlet and along a flow path, the blowing fan including a rotational shaft and a plurality of blades coupled to the rotational shaft;
a filter disposed in the housing and configured to purify the air;
a guard frame disposed on the housing and configured to block an object from entering the blowing fan;
a sensor disposed in a region different from the flow path and configured to detect a target substance in the air;
a driver in communication with the sensor and configured to receive, from the sensor, detection data relating to an amount of the target substance detected by the sensor and control the blowing fan based on the detection data; and
a guide region disposed on the interior space and between the blowing fan and the filter and configured to guide a flow direction of the air flowing from the air inlet to the air outlet,
wherein the guide region includes a first sub region overlapping with at least a portion of the first region and a second sub region disposed in the second region,
wherein the first sub region comprises a first area having a first size and the second sub region comprises a second area having a second size, and
wherein the first size is different from the second size.