Abstract: A battery system includes a plurality of cells, a hermetically sealed pack case, a first abnormality detection sensor, a second abnormality detection sensor, and a controller. The plurality of cells each includes a hermetically sealed cell case. The cell case includes a first pressure valve configured to irreversibly rupture by a predetermined activation pressure. The controller is configured to execute an abnormality determination process of determining that an abnormality occurs in at least one of the plurality of cells if the pressure value detected by the first abnormality detection sensor is higher than a predetermined threshold value and the detection value detected by the second abnormality detection sensor is higher than a predetermined threshold value.

Abstract: An electric compressor includes a rotary shaft, a compression part, a motor, an inverter, an inverter housing, a motor housing arranged next to the inverter housing in a radial direction of the rotary shaft, a compression part housing, a shaft support member, a conductive pin that is electrically connected to the motor, an inverter terminal, and an electrical connecting member. The electrical connecting member has a busbar, a first terminal, a second terminal, and a case. The busbar is bent such that the first terminal is engaged with the conductive pin and the second terminal is engaged with the inverter terminal by moving the electrical connecting member in an axial direction of the rotary shaft.

Abstract: A pneumatic tire comprises: a tread portion having a ground contacting surface; a sidewall portions having an outer surface; a bead portions; a carcass extending between the bead portions; and an inner rubber extending between bead portions. The inner rubber comprises a first portion extending through the tread portion with a first thickness t1, and a second portion extending through the sidewall portion with a second thickness t2. The first thickness t1 is more than the second thickness t2. In a meridian cross section of the tire under its normal state, when a first reference point (Pb1), a second reference point (Pb2), a shoulder reference point (Ps), a reference line segment (Lb), and a shoulder line segment (Ls) are defined, then a length (L1) of the shoulder line segment (Ls) is 85.9% to 89.3% of a length (L2) of the reference line segment (Lb).

Abstract: A motor-driven compressor includes a rotary shaft, an electric motor, a compression unit, an inverter, a housing, and an inverter case. The housing includes a housing end wall and a housing circumferential wall, which extends from a housing end wall in an axial direction of the rotary shaft. The inverter case includes a case end wall, which extends in the axial direction from the case end wall. The seal circumferential wall includes a proximal end connected to the case end wall and an end face located at a distal end. The housing circumferential wall includes an opposed surface that is opposed to the end face. An annular seal member is provided between the seal circumferential wall and the housing circumferential wall. The seal member extends in a radial direction of the rotary shaft between the end face and the opposed surface.

Abstract: A battery system includes: a pair of output terminals connected to a load; battery modules connected to the output terminals and disposed in parallel to each other; and a controller. Each of the battery modules includes: a battery unit including cells connected in series to each other; a main relay provided on a first side end portion of the battery unit; a unit relay provided on a second side end portion of the battery unit; and a pre-charging unit provided in parallel to the main relay. The controller includes a pre-charging process executor configured or programmed to, when the battery modules are to be connected to the load, exercise control so as to connect the battery modules to the pair of output terminals after having executed a pre-charging process on the battery modules on a one-by-one basis.

Abstract: A battery system includes a plurality of battery units connected in parallel, a battery unit voltage detector detecting a voltage value of the battery units, a plurality of unit relays respectively connected in series to the plurality of battery units, and at least one balancing circuit. The battery units each includes a plurality of battery cells connected in series, a cell voltage detector, and an equalizer equalizing remaining capacities of the plurality of battery cells. The balancing circuit includes a resistor. One end of the balancing circuit is connected to a connection point between one of the battery units and one of the unit relays that are connected in series. The other end of the balancing circuit is connected to a connection point between another one of the battery units and another one of the unit relays that are connected in series.

Abstract: A fluid machine includes an inverter compartment defined by a housing and a cover, the inverter compartment accommodating an inverter, and a wire electrically connected to an external connector and supplying power to a circuit board of the inverter. The wire includes a board coupling portion electrically connected to the circuit board, a connector coupling portion electrically connected to the external connector, and an extended portion extending along a wall surface of the cover and connecting the board coupling portion and the connector coupling portion. The fluid machine further includes a plastic mold covering the extended portion, and an anchor formed integrally with the plastic mold and engaged with a through-hole of the cover. The extended portion is held on the wall surface of the cover by the anchor.

Abstract: An electric compressor includes an inverter, a housing with an opening, an inverter connector, a power connector, and a cable that electrically connects both connectors. The housing accommodates the inverter. The inverter connector includes a cover, an outer sealing member, and an inner sealing member. The cover includes an insertion hole through which the cable is inserted, and is disposed in the opening so as to position the cable in the opening. The outer sealing member is interposed between the opening and the cover. The inner sealing member is interposed between the insertion hole and the cable. The insertion hole includes a restriction portion that restricts a movement of the cable, and a fitting portion that is located closer to the inverter than the restriction portion and in which the inner sealing member is fitted. The insertion hole is narrower at the restriction portion than at the fitting portion.

Abstract: The electric leakage detection method disclosed herein includes: total voltage measurement of measuring a total voltage Vt which is an electrical potential difference between a total positive terminal open to be connectable with an external device and a total negative terminal open to be connectable with the external device; electric leakage voltage measurement of measuring an electric leakage voltage VL which is an electrical potential difference between a reference terminal (the total negative terminal) and the electric leakage occurring position (the third single battery); and an electric leakage occurring position determination of determining the electric leakage occurring position by calculating a ratio (VL/Vt) of the electric leakage voltage VL to the total voltage Vt. This allows the number of single batteries between the reference terminal and the electric leakage occurring position to be estimated, and a detailed electric leakage occurring position to be determined.

Abstract: A motor-driven compressor includes a compression portion, an electric motor, an inverter, and a metal housing. The inverter includes three-phase switching elements and a plastic holder that retains the three-phase switching elements. The housing includes a thermal radiation surface. The holder includes a metal spring. The holder is fixed to the housing using two fasteners. The three-phase switching elements are laid out between the two fasteners. The switching elements at opposite ends of the three-phase switching elements are pressed toward the thermal radiation surface by only the holder. The switching element at the middle of the three-phase switching elements is pressed toward the thermal radiation surface by the holder and the spring.

Abstract: A motor-driven compressor and a housing for the motor-driven compressor are provided. A power line connector and a communication line connector are arranged on an external surface of a housing. A first terminal of an interlocking communication line is located in the power line connector. A second terminal of the interlocking communication line is located in the communication line connector. The interlocking communication line is routed on the external surface from the first terminal to the second terminal.

Abstract: A battery system includes: an battery assembly; a controller; and a voltage sensor, a first temperature sensor, and a second temperature sensor, which are a plurality of sensors that each detects a parameter of the battery. An abnormality of a sensor of the plurality of sensors does not lead to an abnormality of a remainder of the sensors. The controller determines that the battery assembly is abnormal when at least two sensors of the plurality of sensors output abnormal values.

Abstract: A battery module includes battery stack (2) including a plurality of stacked battery cells (1), a pair of end plates (3) disposed at both end parts in a stacking direction of battery stack (2), bind bar (4) in which the pair of end plates (3) are coupled, and electronic circuit block (6) mounted with voltage detection circuit (22) that detects a voltage of battery cells (1). Electronic circuit block (6) is disposed on an outer surface of both end plates (3) disposed at both end parts of battery stack (2), and electronic circuit block (6) is connected to battery cells (1) via voltage detection line (19).

Abstract: A power supply device includes battery stack (2) in which a plurality of battery cells (1) are stacked, and a plurality of battery modules (10) including cell monitor circuits (6) that detect battery information of battery cells (1), and cell monitor circuits (6) of the battery modules (10) are cascade-connected via communication lines (44). Battery module (10) includes a pair of communication terminals (43) that are arranged at both ends and are connected to cell monitor circuit (6), and inner wires (45) that connect the pair of communication terminals (43) positioned at both the ends. Communication line (44) is connected to communication terminal (43), and cell monitor circuits (6) of the plurality of battery modules (10) are cascade-connected.

Abstract: The electric leakage detection method disclosed herein includes: total voltage measurement of measuring a total voltage Vt which is an electrical potential difference between a total positive terminal open to be connectable with an external device and a total negative terminal open to be connectable with the external device; electric leakage voltage measurement of measuring an electric leakage voltage VL which is an electrical potential difference between a reference terminal (the total negative terminal) and the electric leakage occurring position (the third single battery); and an electric leakage occurring position determination of determining the electric leakage occurring position by calculating a ratio (VL/Vt) of the electric leakage voltage VL to the total voltage Vt. This allows the number of single batteries between the reference terminal and the electric leakage occurring position to be estimated, and a detailed electric leakage occurring position to be determined.

Abstract: The electric leakage detection method disclosed herein is first detection of turning at least one of the positive-side contactor or the negative-side contactor ON and detecting a value of a system electric leakage resistor RZ which is an electric leakage resistance of the entire electricity distribution system; second detection of turning both of the positive-side contactor and the negative-side contactor OFF and detecting a value of a power source-side electric leakage resistor RL which is an assembled battery 10-side electric leakage resistance; and first determination of determining which of the power source unit-side region or the electric device-side region is causing the electric leakage based on the values of the system electric leakage resistor RZ and power source-side electric leakage resistor RL.

Abstract: A power supply device connects a plurality of battery modules (10) including a plurality of battery cells (1) by power line (42). Battery module (10) includes cell monitor circuit (6) that detects battery information, and a plurality of cell monitor circuits (6) provided in each battery module (10) are cascade-connected via communication line (44). Cell monitor circuit (6) includes communication interface (48) including connection parts (43) formed by connecting communication line (44), and communication interface (48) sets a withstand voltage applied to connection part (43) to be higher than an output voltage of the power supply device.

Abstract: In a battery module, end plates disposed at both ends of battery stack are connected by binding bars. Electrode terminals of respective battery cells and voltage detection circuit of electronic circuit block are connected by a plurality of voltage detection lines. Electronic circuit block is disposed on an outer surface of end plate and fixes one connector formed by linearly disposing a plurality of connecting terminals to which voltage detection lines are connected to circuit board on which voltage detection circuit is mounted. Voltage detection circuit is provided with a plurality of input terminals arranged in a linear manner. In circuit board, connecting terminal and input terminal disposed at opposite positions are connected by a plurality of connection lines. A cell voltage of each battery cell is input from connection line to adjacent input terminals.

Abstract: An electric compressor includes a cylindrical motor housing, an inverter case, and a conductive member. The inverter case is joined to an end portion of the motor housing. The inverter case includes a cylindrical case peripheral wall surrounding the end portion. The end portion has an end face that extends in a radial direction of the motor housing and a peripheral surface that extends in an axial direction of the motor housing and is connected to the end face. A ring-shaped sealing member is disposed between the peripheral surface and the case peripheral wall. An accommodation groove for accommodating the sealing member is recessed in the peripheral surface. The sealing member is held by the peripheral surface and the case peripheral wall in a radial direction of the sealing member to seal a space in which the conductive member is disposed.

Abstract: Connectors are each integrated with a holder in a state in which bus bars are projected. A first projection and a second projection of the holder are respectively inserted in a first insertion hole and a second insertion hole in a circuit substrate. This determines positions of the holder and the circuit substrate relative to each other. The holder has coil lead wire insertion holes, capacitor lead wire insertion holes, and element lead wire insertion holes. These insertion holes extend in the same direction as the direction in which the bus bars project from the holder.