# US 2026/0101474 A1 · Cooling unit > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2026/0101474 A1 - Document ID: US20260101474A1 - Status: Published application - Kind: A1 - Application number: 19/416,406 - Filed: 2025-12-11 - Published: 2026-04-09 - Earliest claimed: 2022-05-27 - Assignees: Nidec Corporation - Applicants: Nidec Corporation - Inventors: Keisuke KAWATA; Toshihiko TOKESHI; Takehito TAMAOKA - Web page: https://patentgrep.com/patent/US20260101474A1 ## CPC - H05K 7/20272: {Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds} - H05K 7/20636: {within sub-racks for removing heat from electronic boards} - G06F 1/20: Cooling means - H05K 7/20254: {Cold plates transferring heat from heat source to coolant} - H05K 7/20263: {Heat dissipaters releasing heat from coolant} - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract A cooling assembly is connectable with a cold plate that comes into thermal contact with a heat source, and includes a first manifold, a second manifold, and a radiator. The first manifold causes a refrigerant having circulated through a first pipe to flow out from outflow ports toward the cold plate. In the second manifold, the refrigerant flowing into inflow ports from the cold plate circulates through a second pipe. In the radiator, the refrigerant having circulated through the second pipe circulates through the flow paths arranged side by side at intervals. Each of the first and second pipes opposes a portion of the radiator in the first direction. ## Claims ### Claim 1 A cooling assembly connectable with a cold plate that comes into thermal contact with a heat source, the cooling assembly comprising: a first manifold including a first pipe and a plurality of outflow ports to cause a refrigerant having circulated through the first pipe to flow out from the plurality of outflow ports toward the cold plate; a second manifold including a plurality of inflow ports and a second pipe such that a refrigerant flowing from the cold plate into the plurality of inflow ports circulates through the second pipe; a radiator including a plurality of flow paths arranged side by side at intervals such that a refrigerant having circulated through the second pipe circulates through the plurality of flow paths; and an air blower assembly to generate an airflow flowing between the plurality of flow paths in a first direction perpendicular or substantially perpendicular to the plurality of flow paths; wherein each of the first pipe and the second pipe opposes a portion of the radiator in the first direction; the cooling assembly includes at least two of the first manifolds or at least two of the second manifolds; a refrigerant having circulated through the first pipe included in each of the at least two first manifolds circulates through the plurality of flow paths included in the radiator, or a refrigerant having circulated through the second pipe included in each of the at least two second manifolds circulates through the plurality of flow paths included in the radiator; and at least one of the first pipe included in the first manifolds or the second pipe included in the second manifolds opposes a portion of the radiator in the first direction. ### Claim 2 (depends on 1) The cooling assembly according to claim 1, wherein the first pipe and the second pipe are arranged side by side in a second direction perpendicular or substantially perpendicular to the first direction; and a width in the second direction of each of the first pipe and the second pipe is smaller than half of a width in the second direction of the radiator. ### Claim 3 (depends on 1) The cooling assembly according to claim 1, wherein the first pipe and the second pipe are arranged side by side in a second direction perpendicular or substantially perpendicular to the first direction; and the first pipe and the second pipe are arranged side by side at an interval in the second direction. ### Claim 4 (depends on 1) The cooling assembly according to claim 1, wherein the air blower assembly opposes at least a portion of the radiator in the first direction. ### Claim 5 (depends on 1) The cooling assembly according to claim 1, wherein the first manifolds and the second manifolds are positioned on an upstream side of the airflow relative to the radiator; and the air blower assembly is positioned on a downstream side of the airflow relative to the radiator. ### Claim 6 (depends on 5) The cooling assembly according to claim 5, wherein in the first direction, an interval between the radiator and the air blower assembly is larger than an interval between the first pipe and the radiator. ### Claim 7 (depends on 1) The cooling assembly according to claim 1, wherein the first pipe and the second pipe are arranged side by side in a second direction perpendicular or substantially perpendicular to the first direction; and in a third direction orthogonal to the first direction and the second direction, a maximum dimension of the air blower assembly is larger than a maximum dimension of the radiator.