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公开(公告)号：US20220146167A1
公开(公告)日：2022-05-12
申请号：US17520901
申请日：2021-11-08
Applicant: NEC Corporation
Inventor： Yoshinori MIYAMOTO , Minoru YOSHIKAWA , Masaki CHIBA
Abstract: A cooling apparatus includes a heat receiver that evaporates a low pressure heat transfer medium; a compressor that compresses the evaporated heat transfer medium in a gas phase state, a condenser that condenses the compressed heat transfer medium, a receiver tank that receives and stores at least one of the heat transfer medium from any place in a flow path of the heat transfer medium in the gas phase state that returns the heat transfer medium to the heat receiver and the condensed heat transfer medium in a liquid phase state, an air storage tank that introduces and stores air separated from the heat transfer medium in the receiver tank, and a liquid level controller that controls a liquid level in the receiver tank such that the heat transfer medium in the liquid phase state is stored in the receiver tank at a predetermined liquid level height.
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公开(公告)号：US20200224983A1
公开(公告)日：2020-07-16
申请号：US16650187
申请日：2018-09-18
Applicant: NEC CORPORATION
Inventor： Masanori SATO , Koichi TODOROKI , Arihiro MATSUNAGA , Mizuki WADA , Minoru YOSHIKAWA
Abstract: Provided are a phase change cooling device and a control method, whereby stable high-efficiency cooling performance can be obtained according to heat exchange performance. This phase change cooling device includes: a heat receiver which accommodates a coolant and receives heat from a heat generation body which is to be cooled; a heat radiator which radiates the heat of a coolant vapor of the coolant gasified by receiving heat by means of the heat receiver, and recirculates a liquefied liquid coolant to the heat receiver; a valve for controlling the flow rate of the liquid coolant; and a control means for controlling the opening degree of the valve, wherein the control means controls the opening degree of the valve on the basis of an exhaust temperature, which is the temperature after being discharged from the heat receiver, and the temperature in the vicinity of the heat radiator.
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公开(公告)号：US20200064010A1
公开(公告)日：2020-02-27
申请号：US16494990
申请日：2017-03-27
Applicant: NEC Corporation
Inventor： Minoru YOSHIKAWA , Hisato SAKUMA , Koichi TODOROKI
Abstract: A temperature control device comprises: first control means; and second control means. The first control means includes first cooling means for cooling of a heat carrier that moves heat from a heat source, and first adjustment means for adjusting a first cooling power being an amount of heat per time to be exchanged in the first cooling means. The second control means includes second cooling means for cooling of the heat carrier, and second adjustment means for adjusting a second cooling power being an amount of heat per time to be exchanged in the second cooling means. The second control means can compensate for a decrease in the first cooling power by a rise in the second cooling power, and can compensate for a decrease in the second cooling power by a rise in the first cooling power.
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公开(公告)号：US20190277572A1
公开(公告)日：2019-09-12
申请号：US16335164
申请日：2017-09-15
Applicant: NEC Corporation
Inventor： Arihiro MATSUNAGA , Minoru YOSHIKAWA , Masaki CHIBA , Hisato SAKUMA , Masanori SATO , Mizuki WADA , Koichi TODOROKI
Abstract: A phase-change cooling apparatus according to an exemplary aspect of the present invention includes an evaporator a condenser; a refrigerant liquid driving means for circulating the refrigerant liquid; a first piping section configured to connect the evaporator and the condenser; a second piping section configured to connect the condenser to the refrigerant liquid driving means; a third piping section configured to connect the refrigerant liquid driving means to the evaporator; a refrigerant pooling means for pooling the refrigerant liquid, the refrigerant pooling means being located in a flow path constituted by the second piping section; and a fourth piping section, with one end of the fourth piping section connected to the first piping section at a first connecting point, and another end of the fourth piping section connected to the refrigerant pooling means at a second connecting point.
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公开(公告)号：US20180259232A1
公开(公告)日：2018-09-13
申请号：US15760345
申请日：2015-09-21
Applicant: NEC CORPORATION
Inventor： Hisato SAKUMA , Masato YANO , Minoru YOSHIKAWA , Masaki CHIBA
CPC classification number: F25B29/006 , F25B6/02 , F25B13/00 , F25B15/16 , F25B17/00 , F25B25/02 , F25B29/003 , F25B41/06 , F25B49/02 , F25B2339/047 , F25B2600/2507 , Y02A30/277 , Y02B30/62
Abstract: A cooling system which combines a plurality of refrigeration cycles has a fluctuating cooling capacity. Therefore, a cooling system according to the present invention includes: a first cooling means including a first refrigerant transportation means for circulating a refrigerant that receives heat from an object to be cooled; a second refrigerant transportation means connected to the first refrigerant transportation means, for circulating a diverted refrigerant being a part of the refrigerant; a second cooling means for receiving heat from the refrigerant circulating through the first refrigerant transportation means, and cooling the diverted refrigerant; and a flowrate control means for controlling a flowrate of the diverted refrigerant.
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Patent Agency Ranking
16.发明申请公开(公告)号：US20180054919A1
公开(公告)日：2018-02-22
申请号：US15557709
申请日：2016-03-09
Applicant: NEC Corporation
Inventor： Minoru YOSHIKAWA , Masanori SATO , Akira SHOUJIGUCH! , Arihiro MATSUNAGA , Masaki CHIBA
Abstract: To address the problem of deterioration of cooling performance of a phase-change cooling apparatus cooling a plurality of heat-emitting bodies because of changes in the amount of heat emitted by the plurality of heat-emitting bodies, a refrigerant supply device according to the present invention includes: a first reservoir for storing refrigerant liquid caused to flow by a drive pump; and a refrigerant liquid amount adjustment means for adjusting the flow rate of the refrigerant liquid flowing out of the first reservoir to a heat reception unit wherein the reservoir includes a branch outlet, wherein the branch outlet is provided in a position higher than the refrigerant liquid amount adjustment means, and wherein refrigerant liquid stored in the first reservoir flows out of the branch outlet to a second reservoir disposed in a position lower than the first reservoir.
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公开(公告)号：US20170280594A1
公开(公告)日：2017-09-28
申请号：US15504074
申请日：2015-08-20
Applicant: NEC Corporation
Inventor： Masanori SATO , Kenichi INABA , Minoru YOSHIKAWA , Akira SHOUJIGUCHI , Masaki CHIBA , Arihiro MATSUNAGA
CPC classification number: H05K7/20836 , G05B15/02 , H05K7/20745 , H05K7/20827 , Y02D10/16
Abstract: A rack louver 120 controls an air flow of outside air external to an enclosure 10 taken into the enclosure 10, flowing from an inlet 20 to an outlet 30 in a rack 60. An outlet louver 130 controls an air flow of inside air internal to the enclosure 10 flowing out from the outlet 30 to outside the enclosure 10. A system control unit 150 adjusts motive power of a blowing unit 40, a degree of opening of the rack louver 120, and a degree of opening of the outlet louver 130 in accordance with an outside-air temperature measured by an outside-air temperature sensor 50 and electronic equipment power consumption measured by a power sensor 100. Consequently, electronic equipment in the rack can be cooled with higher energy efficiency while suppressing temperature rise in the electronic equipment.
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公开(公告)号：US20160282023A1
公开(公告)日：2016-09-29
申请号：US15036464
申请日：2014-12-05
Applicant: NEC CORPORATION , NEC PLATFROMS LTD.
Inventor： Arihiro MATSUNAGA , Masaki CHIBA , Minoru YOSHIKAWA , Tadao HOSAKA , Shunsuke FUJII , Akira SHOUJIGUCHI , Kenichi INABA , Masanori SATO
CPC classification number: F25B39/00 , F25B23/006 , F25B39/028 , F25B2500/01 , F28D15/0266 , F28D15/06 , H05K7/20818
Abstract: In order to supply a refrigerant to multiple-stage heat receivers equally while saving space, a refrigerant distribution device to distribute a refrigerant supplied from the upper stream according to the present invention includes a main body including a side wall part, an upper face part and a bottom face part, an upstream pipe provided on the upper face part in a manner communicating with an inside of the main body, a downstream pipe provided in a state partially inserted inside the main body via an under face hole part provided in the bottom face part, a tributary pipe provided in the side wall part or the bottom face part in a manner communicating with the inside of the main body, and a refrigerant direction changing means provided between the upstream pipe and the downstream pipe.
Abstract translation: 为了在节省空间的同时将制冷剂等同地供给到多级的热接收器，根据本发明的从上游供应的制冷剂的分配制冷剂分配装置包括：主体，其包括侧壁部，上表面部和 底面部，以与主体内侧连通的方式设置在上表面部的上游管，下游管，其经由设置在底面的底面孔部分部分插入到主体内部， 部分，以与主体内部连通的方式设置在侧壁部分或底面部分中的支流管，以及设置在上游管和下游管之间的制冷剂方向改变装置。
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19.发明申请COOLING SYSTEM FOR ELECTRONIC DEVICE STORING APPARATUS AND COOLING SYSTEM FOR ELECTRONIC DEVICE STORING BUILDING 有权用于电子设备存储建筑的电子设备存储设备和冷却系统的冷却系统公开(公告)号：US20150305209A1
公开(公告)日：2015-10-22
申请号：US14646599
申请日：2013-12-03
Applicant: NEC CORPORATION
Inventor： Kenichi INABA , Minoru YOSHIKAWA , Hitoshi SAKAMOTO , Akira SHOUJIGUCHI , Arihiro MATSUNAGA , Masaki CHIBA
IPC: H05K7/20
CPC classification number: H05K7/20818 , F25B23/006 , F28D15/0266 , F28D15/06 , G06F1/20 , H05K7/20736 , H05K7/20809
Abstract: A cooling system of an electronic device storing apparatus of the present invention comprises: a rack including an electronic device and a plurality of placement shelves to place the electronic device; in the rack, a vaporizer having a refrigerant internally being mounted; outside the rack, a condensing part connected with the vaporizer by a laying pipe being installed; and a refrigerant adjustment means for adjusting a height of a refrigerant surface in the vaporizer.
Abstract translation: 本发明的电子设备存储装置的冷却系统包括：包括电子设备的机架和用于放置电子设备的多个放置架; 在机架中，内置有制冷剂的汽化器; 在机架外部，安装有通过铺设管与蒸发器连接的冷凝部件; 以及用于调节蒸发器中的制冷剂表面的高度的制冷剂调节装置。
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公开(公告)号：US20220341669A1
公开(公告)日：2022-10-27
申请号：US17725801
申请日：2022-04-21
Applicant: NEC Corporation
Inventor： Mahiro HACHIYA , Minoru YOSHIKAWA , Masaki CHIBA
IPC: F28D1/04
Abstract: A heat-radiation apparatus includes a housing and a plurality of heat-radiation modules which are aligned in a vertically-slanted manner with a predetermined inclination angle to a vertical line in the housing. A plurality of heat-radiation modules includes a plurality of heat exchangers which is aligned together in parallel and equipped with a plurality of fans to parallelize axial lines thereof with each other. In a manufacturing method of the heat-radiation apparatus, the number of heat-radiation modules is adjusted according to a radiation amount which is determined in advance.
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