US 12,188,665 B2
Heat exchanging element and heat exchange ventilator
Tomoya Watanabe, Tokyo (JP); Tsuyoshi Tsubouchi, Tokyo (JP); Shunsaburo Okawa, Tokyo (JP); Hajime Sotokawa, Tokyo (JP); and Kimikazu Hazumi, Tokyo (JP)
Assigned to Mitsubishi Electric Corporation, Tokyo (JP)
Appl. No. 18/041,855
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Aug. 21, 2020, PCT No. PCT/JP2020/031579
§ 371(c)(1), (2) Date Feb. 16, 2023,
PCT Pub. No. WO2022/038762, PCT Pub. Date Feb. 24, 2022.
Prior Publication US 2023/0296268 A1, Sep. 21, 2023
Int. Cl. F24F 1/0325 (2019.01); F24F 1/028 (2019.01)
CPC F24F 1/0325 (2019.02) [F24F 1/028 (2019.02)] 6 Claims
OG exemplary drawing
 
1. A heat exchanging element comprising a first passage forming member and a second passage forming member stacked alternately, the heat exchanging element including a counterflow part that includes a first passage through which air passes and a second passage through which air flows in a direction opposite a direction in which the air passes through the first passage, wherein
the first passage forming member and the second passage forming member each include:
a rib portion, which constitutes the counterflow part, including a first wall portion constituting an end in a first direction of the first passage, a second wall portion constituting an end in the first direction of the second passage, and a third wall portion separating the first passage and the second passage adjacent to each other in a second direction from each other, the first direction being a direction in which the first passage forming member and the second passage forming member are stacked, the second direction being perpendicular to the first direction;
a board being in contact with an end in a third direction of the rib portion, and separating a first connection passage communicating with the first passage and a second connection passage communicating with the second passage from each other, the third direction being perpendicular to the first direction and to the second direction;
a first blocking portion installed at the end of the rib portion, to block between the first passage and the second connection passage; and
a second blocking portion installed at the end of the rib portion, to block between the second passage and the first connection passage.