A battery cooling apparatus includes a case for housing battery cells and a fan device disposed in the case for blowing air through a circulation passage to cool the battery cells. The case includes a discharge passage which makes communication between inside and outside of the case to allow part of the air circulating through the circulation passage to leak to outside the case. The fan device includes a first inflow passage and a second inflow passage. The first inflow passage, which is part of the circulation passage, is provided to allow the air having cooled the battery cells to be sucked into the fan device. The second inflow passage makes communication between the outside of the case and the fan device to allow air outside the case to be sucked into the circulation passage by suction force of the fan device.

A temperature control device for a battery and for a vehicle interior, having a first heat exchanger and having a second heat exchanger that are thermally coupled, the second heat exchanger being thermally coupled to the battery, and the first heat exchanger to a temperature control chamber that has a downstream segment that is thermally coupled to the vehicle interior and has a first upstream segment and a second upstream segment, the first upstream segment being thermally coupled to the vehicle interior and the second upstream segment to a surrounding environment of the vehicle, the first heat exchanger being capable of being thermally coupled alternately to the first upstream segment or to the second upstream segment.

A battery pack having an air communication passage communicating the interior of the battery pack accommodating battery cells with the exterior of the battery pack, and configured to prevent moisture from reaching the battery cells. The battery pack includes a housing having outer and inner bottom plates, and defining a primary chamber for accommodating battery cells and a secondary chamber between the outer and inner bottom plates. The housing includes an air communication passage communicating the secondary chamber with an exterior of the housing. A part of a bottom surface of the inner bottom plate adjacent to an upright wall inclines upward with respect to a reference surface of the bottom surface of the inner bottom plate away from the outer bottom plate toward the upright wall. The air communication passage includes a first communication hole having an edge located above the reference surface of the inner bottom plate.

An onboard battery includes battery modules each containing battery cells, a housing case that houses the battery modules, and an air intake duct configured to send cooling air into the modules. Of the battery modules, at least two are disposed apart from each other in a vertical direction and at least two are disposed apart from each other in a front-rear direction. Cooling air is taken into the battery modules from rear via the air intake duct. Cooling air taken into the battery modules is emitted to an internal space of the housing case. A rear portion of the housing case is provided with an exhaust hole configured to let out cooling air emitted from the battery modules to the internal space. Of emission flows of cooling air emitted from the battery modules, the emission flow of cooling air from at least one of the modules disposed most forward is the largest.

A transportation refrigeration unit is provided. The transportation refrigeration unit comprising: a compressor configured to compress a refrigerant; a compressor motor configured to drive the compressor; an evaporator heat exchanger operatively coupled to the compressor; an energy storage device for providing power to the compressor motor; and an evaporator fan configured to provide return airflow from a return air intake and flow the return airflow over the evaporator heat exchanger, wherein the return airflow thermodynamically adjusts a temperature of the energy storage device.

A transportation refrigeration unit is provided. The transportation refrigeration unit comprising: a compressor configured to compress a refrigerant; a compressor motor configured to drive the compressor; an evaporator heat exchanger operatively coupled to the compressor; an energy storage device for providing power to the compressor motor; and an evaporator fan configured to provide return airflow from a return air intake and flow the return airflow over the evaporator heat exchanger, wherein the return airflow thermodynamically adjusts a temperature of the energy storage device.

A first fin is formed on a first inside wall surface to protrude therefrom. The first fin exchanges heat between fluid and the first inside wall surface. A first fluid passage is divided between a first region that is a space where the first fin is arranged, and a second region that is a space where the first fin is not arranged. Fluid flows from the second region into the first region. The first fin includes an inflow port through which fluid flows into the first region, and an outflow port through which fluid flows out of the first region. The first fin is formed to extend from the inflow port to the outflow port. An area of the inflow port is larger than a cross-sectional area of the first fluid passage when viewed in a flow direction of fluid.

Provided is a battery pack for a vehicle including an approximately rectangular pack case, a plurality of flat box-shaped battery modules, a cooling unit, and a junction box for storing a relay, in which: the plurality of battery modules is piled up flat in the pack case so that a terminal provided on a short side of each battery module is directed in a longitudinal direction of the pack case; the cooling unit is disposed at one end of the pack case in the longitudinal direction and configured to send and circulate cooling air in the pack case along an outer periphery of the pack case; and the junction box is disposed in a most downstream side of the circulating cooling air beside the cooling unit in a width direction of the pack case.

Provided is a battery pack for a vehicle including an approximately rectangular pack case, a plurality of flat box-shaped battery modules, a cooling unit, and a junction box for storing a relay, in which: the plurality of battery modules is piled up flat in the pack case so that a terminal provided on a short side of each battery module is directed in a longitudinal direction of the pack case; the cooling unit is disposed at one end of the pack case in the longitudinal direction and configured to send and circulate cooling air in the pack case along an outer periphery of the pack case; and the junction box is disposed in a most downstream side of the circulating cooling air beside the cooling unit in a width direction of the pack case.

One aspect of the present invention relates to a battery module including a plurality of rechargeable battery cells arranged in a row, a first cooling channel and a second cooling channel that are arranged in one side of the row, and a fluid path plate that is provided between neighboring battery cells, and forms a cooling passage through which a coolant flows from the first cooling channel to the second cooling channel, wherein the fluid path plate includes a guide member that guides the coolant flow from an inlet of the fluid path plate, is communicated with the first cooling channel to an outlet of the fluid path plate, is communicated with the second cooling channel. The guide member includes a plurality of curved ribs and a plurality of circular members connected in a network connection structure. According to the present invention, the cooling passage that generates turbulence with a long cooling route is shared by two neighboring battery cells. Accordingly, a battery module having improved cooling efficiency can be provided.