Sanyo Electric Co., Ltd.

Sharp Kabushiki Kaisha Corporation

Prime Planet Energy & Solutions, Inc.

Masato Nishikawa

Kimihiko Furukawa

Hidetsugu Mukae

Shinya Inui

Hitoshi Kihara

Tomonori Kawamoto

Kenji Motoyoshi

Takahiro Nakamura

Masaki Yugou

Hiroshi Hosokawa

Noriharu Kobayashi

Masayuki Yoshinaga

Hidenori Fujisawa

Yoshitaka Sakiyama

Taketoshi Yoshikane

Haruhiko Yamamoto

Atsushi Hirayama

Tatsuyuki Nakagawa

Masahiro Sata

Katsuhiro Arinobu

A control unit includes: an input portion that receives the positional information of a vehicle; a calculation unit that generates a control signal for controlling an electromagnetic relay; and an output portion that outputs the control signal to the electromagnetic relay. The calculation unit determines whether a location region of the electromagnetic relay is a relay-freeze region, the location region being identified by the positional information of the vehicle, and, when the location region of the electromagnetic relay is a relay-freeze region, performs a freeze inhibiting process for preventing the electromagnetic relay from being frozen or defrosting the electromagnetic relay by opening and closing the electromagnetic relay and causing the electromagnetic relay to vibrate.

Apparatus and method for inhibiting electromagnetic relay from being frozen

Provided is a management device that manages a power storage module configured by connecting in series a plurality of parallel cell groups in which a plurality of cells are connected in parallel. In the management device, a voltage detection circuit detects a voltage of each of the plurality of parallel cell groups connected in series. A plurality of equalizing circuits are connected in parallel to the plurality of parallel cell groups, respectively. A controlling circuit controls the plurality of equalizing circuits based on the voltage detected by the voltage detection circuit and executes an equalizing process. The controlling circuit determines whether or not an abnormal cell is included in each of the parallel cell groups based on a voltage change of each of the parallel cell groups during discharging to the equalizing circuit or charging from the equalizing circuit.

Management device and power supply system

A monitoring device includes a first detection block, a second detection block, and a monitoring unit. Each of the first detection block and the second detection block includes one or more voltage detectors that detect voltages across power storage cells. The monitoring unit includes a complement processor that, when a circuit in the first detection block breaks down and the first detection block fails to transmit the states of the power storage cells to the monitoring unit, complements the states of the power storage cells that have not been acquired from the first detection block, based on the states of the power storage cells detected in the second detection block.

Monitoring device and power storage system

A status signal output circuit outputs a first status signal indicating with a binary level whether or not power the storage unit is normal in accordance with a determination result of the status determination circuit, and, as a second status signal, a pulse width modulation (PWM) signal according to the status of the power storage unit when a measurement circuit including the status determination circuit is normal, or a signal having a axed level when the measurement circuit including the status determination circuit is abnormal. A control signal output circuit outputs, to a drive circuit, a control signal for control to bring a switch inserted between the power storage unit and a load into an OFF state when the power storage unit has abnormality, in accordance with the first status signal and the second status signal output from the status signal output circuit.

Management device and power storage system

A battery system having: a series unit in which battery units are connected in series; heat exchangers thermally coupled with the battery units and internally circulating the coolant; and an outer case in which the series units and the heat exchangers are accommodated. The battery unit has battery cells stacked together, a plus output terminal and a minus output terminal at both ends thereof. The battery unit disposed at an end of the plus output terminal side of the series unit is disposed at an inclined posture where the end of the plus output terminal side is away from the base plate of the outer case. The battery unit disposed at an end of the minus output terminal side of the series unit, is disposed at an inclined posture where the end of the minus output terminal side is away from the base plate of the outer case.

Battery system and electrically driven vehicle equipped with battery system

A power storage system includes a plurality of power storage modules each including a plurality of cells that is layered perpendicularly to an installation plane and is electrically connected dries. The plurality of power storage modules is mounted on a frame. A plurality of conductive trays is aligned horizontally between the frame and the plurality of power storage modules and horizontally divides the plurality of power storage modules into a plurality of groups.

Power storage system

A monitoring system includes: a first monitor that receives, from a first output terminal, a voltage detected by a voltage detector and information on a circuit failure; a second monitor that receives, from a second output terminal, an abnormal voltage signal detected by the voltage detector; and a vehicle controller that electrically disconnects a driving motor from an electricity storing unit. When a circuit failure occurs in one circuit of a circuit on a side of the first output terminal and a circuit on a side of the second output terminal and a circuit failure does not occur in the other circuit, and the electricity storing unit is normal, the vehicle controller connects the driving motor with the electricity storing unit.

Monitoring system

In order to reduce costs and increase safety with respect to the submergence of water in a power supply system, in this power supply system () a plurality of power storage modules ()-() are connected in series. A fuse (F) is inserted into the path in which the plurality of power storage modules ()-() are serially connected, the fuse being inserted at a position dividing the plurality of power storage modules ()-() into a first group and a second group. A positive-pole-side contactor (RY) is inserted at a position dividing the plurality of power storage modules belonging to the first group into a first sub-group and a second sub-group. A negative-pole-side contactor (RY) is inserted at a position dividing the plurality of power storage modules belonging to the second group into a first sub-group and a second sub-group.

Power supply system

In order to provide a calibration device and the like suitable for image stabilization, a calibration device () is provided with a correction lens (), an actuator coil (), and a control section () for calibrating a center (p) of a movable range (R) of the correction lens () to a center position (pa) between a left rated output position (&#x3b1;) and a right end position (b), the left rated output position (&#x3b1;) being a position closest to a left end position (a) in a range where the correction lens () is movable when a current within a rated current is caused to flow in the actuator coil ().

Calibration device, imaging device, calibration method, and method for manufacturing imaging device

A laser welding device for manufacturing a prismatic batteryof the invention has a pair of jigsA,B for securing a prismatic battery outer can B, a gas supply section for supplying inert gas to welding points of a sealing cover Bfitted to the prismatic battery outer can B, and a laser unitfor irradiating laser beam. Each of the jigsA,B is provided with a slit-shaped blower outlet and the blower outlet is positioned below the welding points. The inert gas is supplied to the blower outlet from the gas supply section and is blown from the blower outlet to the welding points from below. The laser welding device for manufacturing a prismatic batterycan obtain a laser welding device that welds the sealing cover Bfitted to the prismatic battery outer can Bfast, preventing weld droops and allowing uniform welding.

Method for manufacturing prismatic battery, and laser welding jig and laser welding device for manufacturing the same

Fuel cell of this invention generates electricity by supplying fuel fluid to one of a pair of electrodes forming an MEA, supplying oxidation fluid to the other electrode, at least one of the fuel and oxidation fluids being gas, comprising a gas supply device transferring the gas along a flow pathdefined on a surface of the MEAand a drive circuit driving the gas supply device comprising a vibrating plateand a reflection wall on both sides of the flow path, and the drive circuit performs a normal operation control generating gas flow from inlet to outlet of the flow pathdue to sound pressure gradient generated in the flow pathby vibrating the vibrating plateand a foreign material elimination operation control eliminating foreign material in the flow pathby changing a vibration mode of the vibrating plate

Fuel cell

In a self-traveling cleaner of the present invention, a cleaning mechanism includes a brush mechanism rotatable along a floor surface and a driving mechanism for rotatingly driving the brush mechanism. The brush mechanism includes a rotation axis extending perpendicular to the floor surface, one arm projecting laterally from a lower end of the rotation axis, and a brush planted on the arm. The rotation axis is provided within a reverse side of the main body, and the arm has a rotation angle range in which the arm projects outwardly from an outer periphery of the main body and a rotation angle range in which the arm is contained within the outer periphery of the main body.

Growing community of inventors

Hyogo, Japan

Masato Nishikawa