US 12,033,780 B2
Cooling structure for transformer
Shunetsu Saitoh, Tokyo (JP)
Assigned to TMEIC Corporation, Chuo-ku (JP)
Appl. No. 17/251,472
Filed by TMEIC Corporation, Chuo-ku (JP)
PCT Filed Apr. 22, 2019, PCT No. PCT/JP2019/017012
§ 371(c)(1), (2) Date Dec. 11, 2020,
PCT Pub. No. WO2020/217274, PCT Pub. Date Oct. 29, 2020.
Prior Publication US 2021/0110957 A1, Apr. 15, 2021
Int. Cl. H01F 27/20 (2006.01); H01F 27/08 (2006.01); H01F 27/28 (2006.01)
CPC H01F 27/20 (2013.01) [H01F 27/2876 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A cooling structure for a transformer comprising:
a plurality of coils formed around a central axis and arranged along an axial direction parallel to the central axis; and
a partition member configured to cover at least one of the plurality of coils along the axial direction only on a downstream side from a center of the plurality of coils in a flow direction of a refrigerant that flows along the axial direction of the plurality of coils, wherein
a first interval in the axial direction between two coils among the plurality of coils, which are located at an upstream side end of the partition member in the flow direction, is greater than a second interval in the axial direction between other coils.