公开(公告)号：US11147187B2

公开(公告)日：2021-10-12

申请号：US16672533

申请日：2019-11-04

Applicant: NIDEC CORPORATION

Inventor： Toshihiko Tokeshi ,  Nobuya Nakae ,  Takahiro Imanishi ,  Akihiko Makita ,  Takehito Tamaoka

IPC: H05K7/20 ,  H01L23/473

Abstract: A cooling device includes at least two cooling units, each cooling unit including a plate-shaped cold plate extending in a horizontal direction, a radiator extending in a first direction perpendicular to the horizontal direction and having a plurality of plate-shaped fins which, on the cold plate, is disposed parallel to a second direction perpendicular to the first direction, and a pump which supplies a refrigerant liquid to the cold plate and the radiator, in which the pump is adjacent to the radiator and is disposed in the second direction of the radiator, and the pump of one first cooling unit of the two cooling units faces the other second cooling unit of the two cooling units in the second direction or in a third direction orthogonal to the first direction and the second direction.

公开(公告)号：US12232297B2

公开(公告)日：2025-02-18

申请号：US18100581

申请日：2023-01-24

Applicant: Nidec Corporation

Inventor： Yoshihisa Kitamura ,  Naoyuki Takashima ,  Takehito Tamaoka ,  Toshihiko Tokeshi

IPC: H05K7/20

Abstract: A cooling device includes a first cooling section, a second cooling section, a first pump section, a second pump section, a branch section, a first flow path section, a second flow path section, a merging section, and a connection section. The branch section branches a refrigerant into two. The first flow path section connects the first cooling section and the first pump section, and one portion of the refrigerant passes through the first flow path section. The second flow path section connects the second cooling section and the second pump section, and another portion of the refrigerant passes through the second flow path section. The merging section merges the refrigerant having passed through each of the first flow path section and the second flow path section. The connection section connects the first and second flow path sections between the branch section and the merging section.

公开(公告)号：US12137537B2

公开(公告)日：2024-11-05

申请号：US17515802

申请日：2021-11-01

Applicant: Nidec Corporation

Inventor： Toshihiko Tokeshi ,  Takehito Tamaoka ,  Naoyuki Takashima

IPC: H05K7/20

Abstract: A liquid feeder includes a first casing with a flow path, and a pump. An upstream flow path located upstream of the pump and communicating with a pump inlet includes a first flow path, a second flow path, a third flow path, a fourth flow path, a fifth flow path, and a sixth flow path that are located on one side in a first direction, another side in the first direction, one side in a second direction, another side in the third direction, one side in the third direction, and another side in the third direction with respect to the pump inlet, respectively.

公开(公告)号：US10959353B2

公开(公告)日：2021-03-23

申请号：US16654016

申请日：2019-10-16

Applicant: NIDEC CORPORATION

Inventor： Toshihiko Tokeshi ,  Takehito Tamaoka ,  Nobuya Nakae

IPC: H05K7/20

Abstract: A cooling device is provided with a cooling unit that includes a cold plate extending in a first direction; a pump and a tank disposed on one side in a second direction perpendicular to the first direction of the cold plate; and a partition member extending in the first direction and covering the cold plate on one side in the second direction. The cold plate includes a first refrigerant flow path through which a refrigerant flows in the first direction. The pump includes a pump chamber where a rotating body is accommodated. The tank includes a tank chamber storing the refrigerant and a first tank hole part communicating with the pump chamber. The partition member, including a first hole part that communicates the first flow path and the tank chamber, is provided on one side in the first direction with respect to the first hole part.

公开(公告)号：US11937400B2

公开(公告)日：2024-03-19

申请号：US17684561

申请日：2022-03-02

Applicant: Nidec Corporation

Inventor： Naoyuki Takashima ,  Takehito Tamaoka ,  Toshihiko Tokeshi

IPC: H05K7/20 ,  H01L23/473

CPC classification number: H05K7/20272 ,  H05K7/20263 ,  H01L23/473 ,  H05K7/20254

Abstract: A heat dissipation device includes a first heat dissipator, a second heat dissipator, a first tank connected to one side of each of the first heat dissipator and the second heat dissipator in a first direction, and a second tank connected to another side in the first direction. A coolant flows through an inside of the first heat dissipator, the second heat dissipator, the first tank, and the second tank. The first tank includes a tank-side first outflow port through which the coolant flows out to a first cooling device, and a tank-side first inflow port through which the coolant from the first cooling device flows in. The second tank includes a tank-side second outflow port through which the coolant flows out to a second cooling device, and a tank-side second inflow port through which the coolant from the second cooling device flows in.

公开(公告)号：US11470743B2

公开(公告)日：2022-10-11

申请号：US17327819

申请日：2021-05-24

Applicant: Nidec Corporation

Inventor： Toshihiko Tokeshi ,  Nobuya Nakae ,  Takahiro Imanishi ,  Akihiko Makita ,  Takehito Tamaoka

IPC: H05K7/20 ,  H01L23/473

Abstract: A cooling device includes at least two cooling units, each cooling unit including a plate-shaped cold plate extending in a horizontal direction, a radiator extending in a first direction perpendicular to the horizontal direction and having a plurality of plate-shaped fins which, on the cold plate, is disposed parallel to a second direction perpendicular to the first direction, and a pump which supplies a refrigerant liquid to the cold plate and the radiator, in which the pump is adjacent to the radiator and is disposed in the second direction of the radiator, and the pump of one first cooling unit of the two cooling units faces the other second cooling unit of the two cooling units in the second direction or in a third direction orthogonal to the first direction and the second direction.

公开(公告)号：US11252837B2

公开(公告)日：2022-02-15

申请号：US16297770

申请日：2019-03-11

Applicant: Nidec Corporation

Inventor： Nobuya Nakae ,  Akihiko Makita ,  Hidenobu Takeshita ,  Tomotsugu Sugiyama ,  Toshihiko Tokeshi ,  Takehito Tamaoka

IPC: H05K7/20 ,  F28D1/053 ,  F28F1/02

Abstract: A cooling apparatus includes a cold plate including a lower surface to be in contact with a heat-radiating component, and a first coolant passage in which a coolant flows, a radiator including fins to perform cooling and pipes each defining a second coolant passage in communication with the first coolant passage, a pump to circulate the coolant, a first tank joined to one end of each of the pipes, and a second tank to join another end of each of the pipes to the pump. The radiator is provided on the cold plate, and the pump is adjacent to the second tank.

公开(公告)号：US10917995B2

公开(公告)日：2021-02-09

申请号：US16689177

申请日：2019-11-20

Applicant: Nidec Corporation

Inventor： Toshihiko Tokeshi ,  Nobuya Nakae ,  Takehito Tamaoka

IPC: F28D15/00 ,  H05K7/20 ,  H01L23/473 ,  B23P15/26 ,  H01L23/367

Abstract: A cooling device includes: a cold plate; a radiator; a pump; a first tank; and a second tank. The cold plate has a first cooling medium flow passage. The radiator has fins and pipes forming a second cooling medium flow passage. The pump circulates a cooling medium. The first tank is coupled to one ends of the pipes. The second tank couples the other ends of the pipes to the pump. The radiator is disposed on the cold plate. The cold plate has a bottom wall portion, a top wall portion, a side wall portion, an internal space, an inlet port, and an outlet port. The bottom wall portion has blades, and an inner peripheral wall of the side wall portion has a first bent portion.

公开(公告)号：US11994332B2

公开(公告)日：2024-05-28

申请号：US17381253

申请日：2021-07-21

Applicant: Nidec Corporation

Inventor： Takaya Okuno ,  Toshihiko Tokeshi ,  Takehito Tamaoka

IPC: F28F3/02 ,  F25D11/02 ,  F25D17/02 ,  F25D23/06 ,  F28F3/12 ,  H05K7/20

CPC classification number: F25D17/02 ,  F25D11/02 ,  F25D23/069 ,  F28F3/02 ,  F28F3/12 ,  H05K7/20254 ,  H05K7/20272

Abstract: A cooling assembly includes a cold plate in contact with a heat generating component, a housing on one side of the cooling assembly in a first direction with respect to the cold plate, a first wall located between the housing and the cold plate, and a second wall separating a plate chamber defined by the housing and the first wall into a first plate chamber and a second plate chamber adjacent to each other in a second direction orthogonal to the first direction. The first wall includes a first through hole opposing the cold plate in the first plate chamber and a second through hole opposing the cold plate in the second plate chamber.

公开(公告)号：US11841183B2

公开(公告)日：2023-12-12

申请号：US17846134

申请日：2022-06-22

Applicant: Nidec Corporation

Inventor： Toshihiko Tokeshi ,  Takehito Tamaoka ,  Nobuya Nakae

IPC: F25D17/02 ,  F25D31/00

CPC classification number: F25D17/02 ,  F25D31/00

Abstract: A cooling unit includes a cold plate extending in a horizontal direction, a tank defining a tank chamber that stores a refrigerant, the tank including an outer tank surface and an inner tank surface, and a pump defining a pump chamber, the pump including an outer pump surface and an inner pump surface. The pump chamber is spaced away from and outside of the tank chamber. A portion of the outer tank surface and a portion of the outer pump surface are directly adjacent to one another in the horizontal direction. The pump chamber accommodates a rotating body that transfers the refrigerant. An upper end of the tank chamber in a first direction perpendicular to the horizontal direction is positioned higher than an upper end of the pump chamber in the first direction.