Sanyo Electric Co., Ltd.

Panasonic Intellectual Property Management Co., Ltd.

Sumitomo Metal Mining Company, Ltd.

Takeshi Nakashima

Yohei Yamada

Eiji Maruyama

Takehito Ike

Shoichi Toya

Hayato Ikebe

Ryuzo Hagihara

Takayoshi Abe

Tomomichi Nakai

Souichi Sakai

Kazuo Ishimoto

Hiroshi Saeki

Hiroki Hayashi

Yoshikatsu Ito

Osamu Nakai

Takayuki Nakai

Satoshi Matsubara

Toshiya Iwasaki

Yasuo Okuda

Yoshiyuki Ishizuka

Youichiro Nishikawa

Kenji Uchihashi

Chie Sugigaki

Chie Kashiki

Ken Yamada

Takuji Sugata

Masaharu Kawakatsu

Hiroto Nagano

Hiroki Nakatsu

Hiromichi Namikoshi

Ito Yoshikatsu

Yamada Yohei

Takuzo Shimizu

Kashiki Chie

A heating cooking device includes: a heating chamber having a front face opening; and a heater that is provided on an upper wall of the heating chamber to heat an object to be heated stored in the heating chamber, at least part of the heater being disposed at a center of the heating chamber seen from above. The heating cooking device further includes camera that is provided on the upper wall of the heating chamber and is disposed closer to a front of the heating chamber than the center of the heating chamber is when seen from above, with camera having an imaging direction inclined toward a rear side of the heating chamber with respect to a vertical direction. The heating cooking device further includes blower fan that is provided on the upper wall of the heating chamber, closer to a front of the heating chamber than the center of the heating chamber is when seen from above and is disposed at a position on one of a right side and a left side with respect to camera as seen from above, and that blows air toward camera from the one of the right side and the left side.

Heating cooking device

A storage battery unit includes: a battery module having a plurality of cells, and a module circuit connected to (i) an electric power line and (ii) a communication line; a unit circuit connected to (i) the module circuit by the electric power line and the communication line, and (ii) an electric power conversion device disposed externally; and a casing that accommodates the battery module and the unit circuit. The casing includes a top plate, a bottom plate, and a front plate respectively disposed on a top surface, bottom surface, and front surface of the storage battery unit. The top plate includes a first top plate portion that substantially covers an entirety of the top surface. The front plate includes a first lateral plate portion that substantially covers an entirety of the front surface, and a fixing component. The fixing component is disposed along the first top plate portion.

Storage battery unit

Storage battery unit is a storage battery unit which is connected to PCS. Storage battery unit includes: storage battery module that includes a plurality of electric cells; first terminal which is connectable to PCS, and capable of outputting electric power from storage battery module to PCS; and second terminal which is connectable to external device, and capable of outputting electric power from storage battery module to external device without passing through PCS.

A first connector for electrically connecting a first unit power terminal through a third unit power terminal to a power converter for performing conversion between a DC power and an AC power is mounted to a mounting port. In a status in which the first connector is being removed from the mounting port, it is impossible to mount the first connector to the mounting port while the first unit power terminal through the third unit power terminal are inputting and outputting a DC power, and it is possible to mount the first connector to the mounting port while the first unit power terminal through the third unit power terminal are not inputting and outputting a DC power.

Storage battery unit and connector that can be connected to each other

An electricity storage system includes a main body and a portable unit. The main body includes a casing, a first storage battery module that stores power, and a first terminal unit to supply the power. The portable unit includes a second terminal unit and a second storage battery module, and is attachable to and detachable from the first terminal unit. The second terminal unit is electrically connectable to the first terminal unit and receives the power supplied from the main body. The second storage battery module has a storage capacity less than the first storage battery module. The portable unit further includes a charging controller, upon determination of power supply from the system power supply has been stopped, the charging controller controls a charging rate for the second storage battery module to be charged at least one of a normal mode and a high-speed mode.

Electricity storage system with monitoring and charging circuits

In the present invention, a main switch circuit () is provided between an electric power line (PL), to which voltage outputted from a solar cell () is applied, and a battery module (). A protection circuit () turns OFF the main switch circuit () to protect the battery module () from overcharging when the voltage (VBAT) of the battery module () is equal to or greater than an upper limit voltage. The voltage outputted from the solar cell () is set so as to be greater than the upper limit voltage to allow the battery module () to be charged to the upper limit voltage. When a charge ON command signal has been received, a control unit () turns ON only a sub-switch circuit () to introduce current from the solar cell () into a parallel circuit () and to suppress the voltage (VPL) of the power line (PL) to less than the upper limit voltage before turning ON the main switch circuit ().

Switching device

There is provided an electric power supply system comprising a secondary battery unit which stores electric power generated by a solar cell module, a charge switch circuit which disconnects and connects a charge path between the solar cell module and the secondary battery unit, and a charge and discharge control unit which controls the disconnection and the connection of the charge path by the charge switch circuit, wherein, in the charge switch circuit, the disconnection and the connection of the charge path is controlled by an output voltage of the solar cell module when the charge switch circuit cannot be controlled by the charge and discharge control unit.

Electric power supply system

A power storage unit is provided which is able to facilitate recalibration and which is able to supply power even while recalibration is being performed. A method for correcting the capacity values of storage batteries, and a power storage system are also provided. In the power storage unit, a control unit turns ON a portion of the switches to connect a portion of the storage batteries to the charge and discharge path for correction, and corrects the capacity value of the portion of storage batteries by charging and discharging the portion while the other switches are turned OFF to disconnect the other storage batteries from the charge and discharge path.

Power storage unit, correction method for capacity values of storage batteries, and power storage system

A first line includes a switching element and is electrically coupled to a branch point and an external load which is electrically connectable to a battery parallel-operation circuit. A second line includes a resistive element, and is electrically coupled to the external load and the branch point. The first line and the second line are each provided in a plurality. The plural first lines are connected in parallel to one another, and the plural second lines are connected in parallel to one another. The branch points are electrically coupled respectively to plural external, connectable battery units.

Battery parallel-operation circuit and battery system

There is provided an electricity storage system which comprises an electricity storage device, a charge and discharge switch device which is placed connected to the electricity storage device, a control block which is a charge and discharge control device which controls charging from a power supply and discharging from the electricity storage device to an external load, and an electricity storage device breaker with transmission and reception functions which is provided between the electricity storage device and the charge and discharge switch device, disconnects connection with the electricity storage device according to detection of abnormality of the electricity storage device or according to an instruction of the control block, and notifies the execution of the disconnection to the control block. The control block comprises a hardware disconnection instruction unit in addition to a software disconnection instruction unit.

Electricity storage system and control device

There is provided a prioritization circuit which selects one of a system power supply and a secondary battery unit as a selected supply source and the other as a non-selected supply source and which causes supply of electric power with a higher priority from the selected supply source to a power supply unit, wherein the non-selected supply source is connected to the power supply unit through a diode element which generates a voltage drop and the selected supply source supplies electric power to the power supply unit without passing through a diode element.

Prioritization circuit and electric power supply system

Provided is a power management system capable of controlling charge and discharge of storage batteries according to power requirement of load even when handling electric power of large scale. A system controller receives load-related information data including the power requirement of load and storage battery-related information data including a state of a storage battery assembly including multiple storage batteries and creates an overall charge-discharge control instruction for the entire power management system based on the load-related information data and the storage battery-related information data. A hierarchical charge-discharge control apparatus receives the overall charge-discharge control instruction from the system controller and performs charge-discharge control of the multiple storage batteries, classified into hierarchical levels, on a hierarchical level basis.

Power management system

A ground fault detection circuit includes: a first switch circuit that connects/disconnects a first path between a positive bus bar and a ground potential section, the positive bus bar being connected to positive electrodes of secondary battery units through a field-effect transistor including a parasitic diode; a second switch circuit that connects/disconnects a second path between a negative bus bar and a ground potential section, the negative bus bar being connected to negative electrodes of the secondary battery units; and a ground fault detection unit that detects a ground fault of the positive bus bar or the negative bus bar based on an electric current flowing through the first path or the second path.

Ground fault detection circuit and ground fault detection apparatus

An electricity storage system has secondary battery housing system racks in which secondary batteries and circuit blocks are respectively housed, and a power converter housing rack in which a power converter is housed, and which is orderly disposed together with the plurality of secondary battery housing system racks. The secondary battery housing system rack having a positive-electrode-side terminal directly connected to a positive-electrode-side terminal of the power converter by a positive-electrode bus and the secondary battery housing system rack having a negative-electrode-side terminal directly connected to a negative-electrode-side terminal of the power converter by a negative-electrode bus, are different from each other.

Growing community of inventors

Moriguchi, Japan

Takeshi Nakashima