Battery backup unit (BBU) shelf with a fire extinguishing system

    公开(公告)号:US11211669B2

    公开(公告)日:2021-12-28

    申请号:US16785456

    申请日:2020-02-07

    申请人: Baidu USA LLC

    摘要: According to one embodiment, a battery backup unit (BBU) shelf includes a controller, a supply line to supply a fire extinguishing agent, one or more BBUs, each BBU having a battery module and a temperature sensor. The shelf further includes a flow meter that is coupled to the supply line and measures a flow rate of the fire extinguishing agent flowing through the supply line and produces a flow rate signal that represents the flow rate. For each of the BBUs, the shelf includes a spray nozzle to spray the fire extinguishing agent onto the BBU and a valve that is coupled between the supply line and the spray nozzle. The controller is configured to 1) receive temperature signals from the temperature sensors and 2), for each BBU that has a temperature that exceeds a temperature threshold, open the valve of the BBU to spray the fire extinguishing agent.

    OPTIMAL CONTROL LOGIC IN LIQUID COOLING SOLUTION FOR HETEROGENEOUS COMPUTING

    公开(公告)号:US20210298202A1

    公开(公告)日:2021-09-23

    申请号:US16827353

    申请日:2020-03-23

    申请人: Baidu USA LLC

    发明人: Shuai Shao Tianyi Gao

    IPC分类号: H05K7/20 H05K7/14 G05B19/416

    摘要: An electronic rack includes an array of server blades arranged in a stack. Each server blade contains one or more servers and each server includes one or more processors to provide data processing services. The electronic rack includes a coolant distribution unit (CDU) and a rack management unit (RMU). The CDU supplies cooling liquid to the processors and receives the cooling liquid carrying heat from the processors. The CDU includes a liquid pump to pump the cooling liquid. The RMU is configured to manage the operations of the components within the electronic rack such as CDU, etc. The RMU includes control logic to determine an optimal pump speed to minimize the total power consumption of the pump, acceleration servers and the host servers, based on the one or more parameters and the association between temperature and power consumption of the acceleration servers and the host servers. The RMU then controls the liquid pump based on the optimal pump speed.

    MODULAR QUICK-RELEASE LIQUID HEAT REMOVAL COUPLING SYSTEM FOR ELECTRONIC RACKS

    公开(公告)号:US20180303007A1

    公开(公告)日:2018-10-18

    申请号:US15490272

    申请日:2017-04-18

    申请人: Baidu USA LLC

    IPC分类号: H05K7/20 H05K7/14

    摘要: An electronic rack includes a heat removal liquid manifold, a number of server slots, and a number of server blades inserted therein. The liquid manifold distributes heat removal liquid from an external heat removal system to remove heat from the server blades. Each server blade includes a server tray to contain information technology (IT) components and a quick-release coupling assembly having a first liquid intake connector and a first liquid outlet connector coupled to a flexible hose to distribute the heat removal liquid to the IT components. The first liquid intake connector and the first liquid outlet connector are capable of extending outwardly external to the server tray to connect to, and disconnect from, a second liquid intake connector and a second liquid outlet connector mounted on the liquid manifold, respectively. The quick-release coupling assembly can self-retract and be secure to a block holder when disconnected.

    Power architecture design for thermal management of battery backup energy storage

    公开(公告)号:US11552345B2

    公开(公告)日:2023-01-10

    申请号:US16545546

    申请日:2019-08-20

    申请人: Baidu USA LLC

    摘要: Thermal management of a backup battery unit for datacenter applications is described. In one embodiment, a backup battery unit includes one or more battery cells immersed in cooling liquid contained in an immersion tank. The immersion tank includes a temperature sensor. The battery unit also includes a first direct-current to-direct-current (DC/DC) converter electronically coupled to the battery cells and to an external power source for converting and controlling a charging voltage obtained from the external power source to charge the battery cells. The backup battery unit also includes a cooling-liquid pump for driving cooling liquid to the battery cells. The backup battery unit also includes a microcontroller coupled to the temperature sensor, the first DC/DC converter, and the cooling-liquid pump. The microcontroller is configured to control operations of the cooling-liquid pump based on temperature data obtained from the temperature sensor and an electrical current of the first DC/DC converter.

    Control logic for a battery cooling system

    公开(公告)号:US11349165B2

    公开(公告)日:2022-05-31

    申请号:US16665976

    申请日:2019-10-28

    申请人: Baidu USA LLC

    摘要: According to one embodiment, a battery cooling system includes a battery module with cells, liquid pumps, and a heat exchanger. A method, in response to the battery module discharging battery energy, sets a first liquid pump that is configured to push a first liquid coolant warmed by heat generated by the cells into a hot side of the heat exchanger to a first pump speed, and sets a second liquid pump that is configured to push a second liquid coolant into a cold side of the heat exchanger to a second pump speed. The method determines at least one of an adjusted first and second pump speeds by optimizing an objective function based on the first and second pump speeds, a battery discharge current, and a temperature of the second liquid coolant. The objective function is to minimize the power consumption of the system's cooling components which are the first and the second pumps according to one embodiment. The method modifies at least one of the first and second pump speeds according to the adjusted speeds.

    Modular design of blind mate interface for liquid cooling

    公开(公告)号:US11330741B2

    公开(公告)日:2022-05-10

    申请号:US16830533

    申请日:2020-03-26

    申请人: Baidu USA LLC

    发明人: Shuai Shao Tianyi Gao

    IPC分类号: H05K7/20 H05K7/14

    摘要: A fluid connector includes an adapter panel defining at least two mounting holes configured to be secured to a mounting rail of a server chassis. The fluid connector also includes an interior connector configured to fluidly communicate with a cooling module of a server, and a blind mate connector extending from the adapter panel and configured to fluidly connect with a port of a rack manifold.

    MODULAR DESIGN OF BLIND MATE INTERFACE FOR LIQUID COOLING

    公开(公告)号:US20210307208A1

    公开(公告)日:2021-09-30

    申请号:US16830533

    申请日:2020-03-26

    申请人: Baidu USA LLC

    发明人: Shuai Shao Tianyi Gao

    IPC分类号: H05K7/20 H05K7/14

    摘要: A fluid connector includes an adapter panel defining at least two mounting holes configured to be secured to a mounting rail of a server chassis. The fluid connector also includes an interior connector configured to fluidly communicate with a cooling module of a server, and a blind mate connector extending from the adapter panel and configured to fluidly connect with a port of a rack manifold.

    LOUVER DESIGN FOR BATTERY BACKUP UNITS

    公开(公告)号:US20210176889A1

    公开(公告)日:2021-06-10

    申请号:US16708155

    申请日:2019-12-09

    申请人: Baidu USA LLC

    发明人: Shuai Shao Tianyi Gao

    摘要: According to one embodiment, a battery backup unit (BBU) with a louver design includes a container, a battery module having one or more battery cells, a first louver at a frontend of the container, a second louver at a backend of the container, and a control mechanism that is coupled to both the first and second louvers and is configured to open and close the louvers. Also, the battery module and the control mechanism are disposed within the container. In another embodiment, a BBU shelf with a similar louver design that includes one or more battery modules may be implemented within an electronic rack.

    Electronic rack fluid distribution system

    公开(公告)号:US12127372B2

    公开(公告)日:2024-10-22

    申请号:US17029867

    申请日:2020-09-23

    申请人: Baidu USA LLC

    发明人: Shuai Shao Tianyi Gao

    IPC分类号: H05K7/20

    CPC分类号: H05K7/20272 H05K7/20781

    摘要: A fluid manifold includes a fluid port near to a first end of a fluid manifold, the fluid manifold having an elongated design extending from the first end to a second end. The fluid manifold also includes a number of distributing ports disposed along a length of the fluid manifold between the first end and the second end. The length and form factor of the manifold, and the distribution ports including port number as well as their distances are innovatively designed for different rack configurations. Each distributing port is configured to engage with a flexible hose connected to a cooling system of an electronic device. Rack manifolds with the same design can support different server arrangements in a liquid cooled IT rack. The fluid manifold also includes a mounting mechanism configured to engage with an opening defined in a portion of a back panel of an electronic rack.