Abstract: Aspects of the disclosure relate generally to uninterruptible power supply units for systems requiring back up power. Each unit may include UPS circuitry for controlling charging and allowing discharging of a battery. The UPS circuitry may includes a controller and a plurality of metal-oxide semiconductor field effect transistors (“MOSFET”) switches. The MOSFETs may include charging and discharging MOSFETs arranged in series with the battery all driven by a single gate driver, such as a controller. In this regard, the controller may limit the charging current though all of the MOSFETs and charge the battery. The MOSFETs may be arranged such that if the charging MOSFET fails, the redundant charging MOSFET may continue to limit the charging current to the battery. Similarly, a redundant discharging MOSFET may be arranged in series with a discharging MOSFET in order to continue to provide discharging current if the discharging MOSFET fails.

Abstract: Aspects of the disclosure relate generally to rack systems for housing computing devices. The rack may include shelves supported by flanges of a pair of corresponding inserts. The flanges may be spaced along the length of each of the inserts. The distance between the flanges may define the height of a shelf when placed in the rack. The pair of corresponding inserts may be placed along an inner sidewall of the rack by mating hooks of the inserts with corresponding slots of the inner sidewall and subsequently removed by demating the hooks and slots. For example, a pair of inserts with one distance between the flanges may be replaced by a pair of inserts with another distance between the flanges in order to increase the shelf height of the rack. By replacing the shelves and/or the inserts, a user may quickly and easily in order to reconfigure the rack.

Abstract: Aspects of the disclosure relate generally to relates server rack architecture for housing computing components on a plurality of shelves. More specifically, the shelves of a particular rack may each include a power and data bus (“PDB”) pre-configured to support a particular number of devices of the shelf. A PDB may also include a number of power and data connections for blind mating with the devices of the shelf. The PDB may include two blades which extend away from the PDB and blind mate with the main bus bar. Thus, each PDB may route both power and data signals between a main bus bar for the rack and each of the devices of the shelf. A shelf may be reconfigured for a different number of devices by changing the configuration of the PDB.

Abstract: A battery module includes a housing that defines an inner volume and includes an airflow path from an aperture formed in a first end member of the housing, through the inner volume, and to an aperture formed in a second end member of the housing; a plurality of power cells mounted in the inner volume of the housing, each of the power cells including a vent member at an end of the power cell; and a flame arrestor mounted across the airflow path and between the plurality of power cells and the aperture formed in the second end member of the housing. The flame arrestor includes a screen that includes a plurality of fluid pathways sized to allow an airflow from the airflow path through the fluid pathways and sized to impede a combusted fluid to pass therethrough.

Abstract: An apparatus for extending a bus bar is disclosed. The apparatus may include a first extension piece and a second extension piece. The first extension piece may have multiple surfaces. A first surface may have a first group of receiving portions, a second may have a second group of receiving portions, and a third surface may have a curvature that offsets the third surface from the second surface. The second extension piece may also have multiple surfaces. The second extension piece may have a first surface that includes a first group of receiving portions, a second surface that includes a second group of receiving portions, and a third surface that is substantially parallel to the second surface and includes a third group of receiving portions. When connected to a bus bar, the first extension piece and the second extension piece may be substantially adjacent to one another.

Abstract: A system may include a rack that is configured to receive electrical power from a power distribution box and to distribute the electrical power to one or more electrical loads. The system may include at least one power strip having a first circuit and a second circuit that are mounted in the rack. The first circuit may include outlets into which the electrical loads are connected and a first portion of a connector interface. The second circuit may include an enclosure that houses an electrical configuration including at least one power cord that is coupled to the power distribution box and a second portion of the connector interface that is configured to couple the second circuit to the first circuit by mating with the first portion of the connector interface, where the second circuit is removable from the rack and interchangeable with other second circuits that comprise different electrical configurations.