An electric vehicle includes a wheel, an electric motor to drive the wheel, a battery to supply electric power to the electric motor, the battery including battery cells and a battery casing to house the battery cells, an onboard charger to charge the battery, the onboard charger being opposed to and spaced apart from an outer surface of the battery casing so that an air flow path exists between the onboard charger and the outer surface of the battery casing, and a cooling fan to generate a flow of air passing through the air flow path between the onboard charger and the battery casing.

A vehicle battery pack for an electric vehicle includes a battery, a battery-cooling-air channel, a fume exhaust channel, a fume-ventilation restricting unit, a temperature sensor, a blower fan, and a controller. Cooling air that cools the battery flows through the battery-cooling-air channel. Fumes generated from the battery flow through the fume exhaust channel. The fume exhaust channel is coupled to the battery-cooling-air channel. The fume-ventilation restricting unit closes off the fume exhaust channel from the battery-cooling-air channel in a normal state, whereas causing the battery-cooling-air channel and the fume exhaust channel to communicate with each other in an abnormal state. The temperature sensor detects a temperature of the fumes. The controller controls the blower fan, and increase the air volume of the blower fan on the basis of the temperature detected by the temperature sensor.

A vehicle battery pack for an electric vehicle includes a battery, a battery-cooling-air channel, a fume exhaust channel, a fume-ventilation restricting unit, a temperature sensor, a blower fan, and a controller. Cooling air that cools the battery flows through the battery-cooling-air channel. Fumes generated from the battery flow through the fume exhaust channel. The fume exhaust channel is coupled to the battery-cooling-air channel. The fume-ventilation restricting unit closes off the fume exhaust channel from the battery-cooling-air channel in a normal state, whereas causing the battery-cooling-air channel and the fume exhaust channel to communicate with each other in an abnormal state. The temperature sensor detects a temperature of the fumes. The controller controls the blower fan, and increase the air volume of the blower fan on the basis of the temperature detected by the temperature sensor.

A battery unit includes at least one battery module, a cooling device configured to deliver a cooling gas configured to cool the battery module to the battery module, and a junction board mounted with a wiring component configured to electrically connect the battery module and an external device and allow a charging power and/or a discharging power of the battery module to flow. The junction board is disposed above the cooling device at a position where at least a part of the junction board overlaps the cooling device when viewed from an upper-lower direction.

A battery unit includes at least one battery module, a cooling device configured to deliver a cooling gas configured to cool the battery module to the battery module, and a junction board mounted with a wiring component configured to electrically connect the battery module and an external device and allow a charging power and/or a discharging power of the battery module to flow. The junction board is disposed above the cooling device at a position where at least a part of the junction board overlaps the cooling device when viewed from an upper-lower direction.

The present invention relates to an arrangement for cooling of a plurality of electrical energy storage units. The arrangement comprises a tubular element forming a cooling channel for a cooling medium which has an extension between an inlet opening and an outlet opening. The tubular element comprises a first plane wall element and a second plane wall element arranged in parallel at a distance from each other which is smaller than the height of the electrical energy storage units and that the first plane wall element comprises through holes each configured to receive and define a mounting position of an electrical energy storage unit in the cooling channel.

The present invention relates to an arrangement for cooling of a plurality of electrical energy storage units. The arrangement comprises a tubular element forming a cooling channel for a cooling medium which has an extension between an inlet opening and an outlet opening. The tubular element comprises a first plane wall element and a second plane wall element arranged in parallel at a distance from each other which is smaller than the height of the electrical energy storage units and that the first plane wall element comprises through holes each configured to receive and define a mounting position of an electrical energy storage unit in the cooling channel.

The present invention provides a battery rack including: a housing; a plurality of battery modules stacked in the housing; and a connection member configured to electrically connect the plurality of battery modules, wherein each of the plurality of battery modules includes a plurality of battery submodules stacked on each other, and each of the plurality of battery submodules comprises: at least one cooling member; and a plurality of battery cells located on both sides with the at least one cooling member interposed therebetween, wherein at least two of the plurality of battery cells are located on each of both sides of the at least one cooling member.

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.

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.