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1. 发明申请

US20180020572A1 LIQUID IMMERSION TANK OF ELECTRONIC EQUIPMENT 审中-公开
公开(公告)号：US20180020572A1
公开(公告)日：2018-01-18
申请号：US15616976
申请日：2017-06-08
申请人： FUJITSU LIMITED
发明人： Shinnosuke FUJIWARA , Hideo Kubo
IPC分类号： H05K7/20
CPC分类号： H05K7/20272 , H05K7/20236 , H05K7/203 , H05K7/20763
摘要： The present application discloses a liquid immersion tank of an electronic equipment, which restrains a gas from being mixed in a circulation path even when an outflow port to a circulation path exists in the vicinity of a liquid surface. The liquid immersion tank of the electronic equipment, which is disclosed in the present application, includes a tank body being receivable of the electronic equipment and being connected to the circulation path of a coolant for liquid-cooling the electronic equipment by being immersed in the liquid coolant, and an enclosure including inside an outflow port to the circulation path and receiving an inflow of the coolant overflowing from a liquid surface in the tank body.

2. 发明申请

US20190281727A1 COOLING APPARATUS 审中-公开
公开(公告)号：US20190281727A1
公开(公告)日：2019-09-12
申请号：US16292209
申请日：2019-03-04
申请人： FUJITSU LIMITED
发明人： Shinnosuke FUJIWARA , Nobumitsu Aoki , Hideo Kubo , Keita Hirai
IPC分类号： H05K7/20
摘要： A cooling apparatus includes an immersion-tank configured to store a refrigerant, a refrigerant suction port formed at a lower portion of the immersion-tank, the refrigerant suction port being configured to suck the refrigerant from an outside of the immersion-tank into an inside of the immersion-tank, an electronic device immersed in the refrigerant, the electronic device including, a first heat-generation portion, a second heat-generation portion having a heat-generation amount smaller than a heat-generation amount of the first heat-generation portion, and a refrigerant inlet positioned below the first heat-generation portion and the second heat-generation portion and being open downward, and a block positioned below the first heat-generation portion and the second heat-generation portion, the block including a through-hole through which a region positioned below the first heat-generation portion in the refrigerant inlet is open, and a closing portion that closes a region positioned below the second heat-generation portion in the refrigerant inlet.

3. 发明申请

US20200267872A1 COOLING DEVICE, COOLING SYSTEM, AND METHOD OF COOLING 审中-公开
公开(公告)号：US20200267872A1
公开(公告)日：2020-08-20
申请号：US16776556
申请日：2020-01-30
申请人： FUJITSU LIMITED
发明人： Shinobu Harada , Youichi YOKOTA , Keita Hirai , Shinnosuke FUJIWARA
IPC分类号： H05K7/20
摘要： A cooling device includes: an inner tank configured to store a first coolant which is a liquid; a separation wall that is provided in the inner tank, that faces a side wall portion of the inner tank, that forms an accommodating portion in which an electronic device to be immersed in the first coolant is accommodated, and that forms, at at least part of a periphery of the accommodating portion, a coolant channel through which the first coolant is to flow toward a lower side of the inner tank; an outer tank which is disposed outside the inner tank and through which a second coolant flows; and a heat transfer unit that is provided between the inner tank and the outer tank and that is configured to transfer heat from the first coolant to the second coolant.

4. 发明申请

US20160352342A1 PHASE LOCKED LOOP CIRCUIT CONTROL DEVICE AND CONTROL METHOD OF PHASE LOCKED LOOP CIRCUIT 有权
标题翻译：相位锁定环路控制装置和相位锁定环路控制方法
公开(公告)号：US20160352342A1
公开(公告)日：2016-12-01
申请号：US15064685
申请日：2016-03-09
申请人： FUJITSU LIMITED
发明人： Shinnosuke FUJIWARA , Michiharu Hara
IPC分类号： H03L7/085
CPC分类号： H03L7/16 , H03L7/10
摘要： A phase locked loop circuit control device includes: a phase locked loop circuit configured to generate a clock signal; and a control unit configured to, when being instructed to change a frequency of the clock signal from a current frequency to a target frequency, control the phase locked loop circuit to make the frequency change stepwise from the current frequency to the target frequency, in which the control unit changes the frequency of the clock signal by a first change amount in a first frequency range out of the range of the current frequency to the target frequency, and changes the frequency of the clock signal by a second change amount in a second frequency range out of the range of the current frequency to the target frequency.
摘要翻译：锁相环电路控制装置包括：锁相环电路，被配置为产生时钟信号; 以及控制单元，被配置为当被指示将时钟信号的频率从当前频率改变为目标频率时，控制锁相环电路以使频率从当前频率逐步改变到目标频率，其中控制单元将时钟信号的频率在当前频率的范围内的第一频率范围内的第一变化量改变为目标频率，并且以第二频率将时钟信号的频率改变第二变化量范围在当前频率的范围内到目标频率。

5. 发明申请

US20220322564A1 COOLING DEVICE 有权
公开(公告)号：US20220322564A1
公开(公告)日：2022-10-06
申请号：US17567928
申请日：2022-01-04
申请人： FUJITSU LIMITED
发明人： Hideo KUBO , Kenji SASABE , Shinnosuke FUJIWARA , Nobumitsu AOKI , Keita HIRAI , Atsushi ENDO , Masahide KODAMA , Kento OHGA
IPC分类号： H05K7/20
摘要： A cooling device includes: a downstream heat radiation member that includes a plurality of downstream fins; and an upstream heat radiation member that is arranged on an upstream side in a flow direction of cooling air with a gap from the downstream heat radiation member, includes a plurality of upstream fins, and is provided with a low pressure loss portion in which pressure loss is lower than pressure loss in another portion in one portion in a fin arrangement direction orthogonal to the flow direction.

6. 发明申请

US20210372707A1 COOLING DEVICE 有权
公开(公告)号：US20210372707A1
公开(公告)日：2021-12-02
申请号：US17181737
申请日：2021-02-22
申请人： FUJITSU LIMITED
发明人： Hideo Kubo , ATSUSHI ENDO , Masahide KODAMA , Shinnosuke FUJIWARA
IPC分类号： F28D15/02 , H01L23/427
摘要： A cooling device includes a vessel having a refrigerant sealed inside, an evaporator that receives heat to evaporate a liquid phase of the refrigerant inside the vessel, a condenser that dissipates heat to condense a vapor phase of the refrigerant inside the vessel, a tube shaped transporter that transports the liquid-phase refrigerant inside the vessel to the evaporator by capillary action, and a gap generator that generates a gap between the transporter and the evaporator for the liquid-phase refrigerant to move from the transporter to the evaporator.

7. 发明申请

US20190014685A1 LIQUID IMMERSION COOLING DEVICE AND INFORMATION PROCESSING APPARATUS 审中-公开
公开(公告)号：US20190014685A1
公开(公告)日：2019-01-10
申请号：US16018465
申请日：2018-06-26
申请人： FUJITSU LIMITED
发明人： Tsuyoshi So , Hideo Kubo , Masayuki Watanabe , Shinnosuke FUJIWARA
IPC分类号： H05K7/20
摘要： A liquid immersion cooling device for information processing apparatuses. The liquid immersion cooling device includes an immersion tank, a refrigerant liquid that is retained in the immersion tank, and a plurality of fillers that are filled in the immersion tank and that float on a surface of the refrigerant liquid to cover the surface of the refrigerant liquid.

8. 发明申请

US20180020570A1 LIQUID IMMERSION BATH FOR ELECTRONIC DEVICE 审中-公开
公开(公告)号：US20180020570A1
公开(公告)日：2018-01-18
申请号：US15611067
申请日：2017-06-01
申请人： FUJITSU LIMITED
发明人： Shinnosuke FUJIWARA , Hideo Kubo
IPC分类号： H05K7/20
CPC分类号： H05K7/203 , H01L23/44 , H05K5/068 , H05K7/20 , H05K7/20318 , H05K7/20327 , H05K7/20418 , H05K7/208
摘要： A liquid immersion bath for an electronic device includes: a bath body that is capable of housing the electronic device, is coupled to a circulation path through which a liquid coolant which cools the electronic device immersed in the liquid coolant circulates, and includes a gas phase portion corresponding to a space free from the liquid coolant; and a container that is disposed in the gas phase portion and has a volume which changes in accordance with a pressure of the gas phase portion, wherein an inside of the container is coupled to an outside of the bath body.

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