US 12,238,903 B2
Water-cooled heat dissipation module assembly
Kwan Ho Ryu, Ansan-si (KR); Jeong Keun Lee, Incheon (KR); Min Woo Lee, Hwaseong-si (KR); Ju Hyun Sun, Siheung-si (KR); Tae Keun Park, Siheung-si (KR); Kang Wook Park, Yongin-si (KR); Lee Cheol Ji, Ansan-si (KR); Hyeok Chul Yang, Ansan-si (KR); Tae Heon Kim, Siheung-si (KR); and Keun Jae Lee, Ansan-si (KR)
Assigned to DONG YANG PISTON CO., LTD., Ansan-si (KR)
Appl. No. 18/011,744
Filed by DONG YANG PISTON CO., LTD., Ansan-si (KR)
PCT Filed Aug. 4, 2022, PCT No. PCT/KR2022/011536
§ 371(c)(1), (2) Date Dec. 20, 2022,
PCT Pub. No. WO2023/085556, PCT Pub. Date May 19, 2023.
Claims priority of application No. 10-2021-0154154 (KR), filed on Nov. 10, 2021.
Prior Publication US 2024/0121924 A1, Apr. 11, 2024
Int. Cl. H05K 7/20 (2006.01); B29C 65/44 (2006.01); B29L 31/18 (2006.01)
CPC H05K 7/20927 (2013.01) [B29C 65/44 (2013.01); H05K 7/20254 (2013.01); H05K 7/20272 (2013.01); B29L 2031/18 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A water-cooled heat dissipation module assembly comprising:
a housing unit provided in a form of a housing having an opening portion at least partially opened at one side thereof, the housing unit having therein a flow space in which a coolant flows, the housing unit including a coolant inlet port provided at a first portion thereof, and a coolant discharge port provided at a second portion thereof, so that the coolant is introduced into or discharged from the flow space; and
a cooling unit provided in a form of a plate and coupled to the opening portion of the housing unit, the cooling unit including a plurality of cooling fins formed on one surface directed toward the flow space of the housing unit and configured to cool a power module attached to the other surface,
wherein the housing unit and at least a part of a rim region of the cooling unit are made of a plastic material, and the housing unit and the cooling unit are joined to each other by plastic welding using a laser,
wherein the housing unit is made of a plastic material,
the cooling unit comprises:
a cooling plate made of a metallic material and having a plate shape corresponding to a shape of the opening portion of the housing unit; and
a junction part formed at a position corresponding to a periphery of the opening portion of the housing unit and made of a permeable plastic material, the junction part being formed along a rim portion of the cooling plate while surrounding at least a part of the rim portion of the cooling plate, and
wherein the housing unit comprises a junction protrusion portion protruding in a ring shape along the periphery of the opening portion, and the junction part of the cooling unit comprises a junction groove portion concavely formed in a ring shape at a position corresponding to the junction protrusion portion so as to accommodate at least a part of the junction protrusion portion.