Abstract: A stator for an e-motor includes a body with a first end and a second end, a first plate mounted to the first end of the body, a second plate mounted to the second end of the body, and a plurality of wires and insulation extending through the first plate, the body of the stator and the second plate. The first plate and the second plate inhibit relative movement between individual wires of the plurality of wires and the body of the stator.

Abstract: A traction battery pack assembly includes an enclosure having compartments and battery arrays. Each battery array is disposed in one of the compartments. An intake manifold delivers air to the compartments. An exhaust manifold receives air from the compartments. A thermal management method includes using an intake manifold to deliver air to compartments within an enclosure. The compartments each house at least one battery array. The method includes using an exhaust manifold to receive air from the compartments and to communicate air from the enclosure.

Abstract: Thermal management and venting systems are provided for managing thermal energy levels of traction battery packs. An exemplary thermal management and venting system may be configured to control a flow of a cooling fluid through an interior volume of a battery module based on a temperature of a cooling fluid exiting a heat exchanger plate of the traction battery pack. The proposed systems are therefore capable of more quickly and efficiently reducing temperatures of vent gases and hot particulates by mixing the vent gases with the cooling fluid, thereby substantially eliminating vent gas combustion and thermal propagation during a battery thermal event.

Abstract: A battery pack venting assembly includes a battery pack vent that communicates a flow of vent byproducts from a battery pack. The battery pack vent has a coolant passage that communicates a coolant to manage thermal energy levels within the flow of vent byproducts. The coolant can be a liquid coolant. The battery pack vent can be configured to communicate the flow to impinge on areas of the battery pack vent.

Abstract: A heat exchanger includes a housing. The housing defines a refrigerant inlet, a refrigerant outlet opposing the refrigerant inlet, at least one coolant inlet, and at least one coolant outlet. A gyroid structure is disposed within the housing. The gyroid structure defines a set of refrigerant channels that direct refrigerant through the gyroid structure, a first set of coolant channels that direct coolant through a first region of the gyroid structure, and a second set of coolant channels that direct coolant fluid through a second region of the gyroid structure. A valve is disposed within the refrigerant inlet. The valve is configured to direct refrigerant fluid to at least one of the first region and the second region of the gyroid structure.

Abstract: A heat exchanger includes a housing. A first cooling block is defined within the housing. The first cooling block includes a coolant inlet, a refrigerant inlet, and a first gyroid structure that defines a first set of coolant channels and a first set of refrigerant channels. A second cooling block is defined within the housing. The second cooling block includes a coolant outlet, a refrigerant outlet, and a second gyroid structure that defines a second set of coolant channels and a second set of refrigerant channels. A perforated barrier plate is interposed between the first cooling block and the second cooling block. The first set of coolant channels is in fluid communication with the second set of coolant channels via perforations in the barrier plate. The first set of refrigerant channels is in fluid communication with the second set of refrigerant channels via perforations in the barrier plate.

Abstract: A varnish application system includes an electric motor, a clamp, and a varnish injector. The clamp includes a beam, a first end plate fixed to the beam and engageable to a first end of the electric motor, and a second end plate releasably connected the beam and engageable to a second end of the electric motor. The varnish injector is arranged to apply varnish to the electric motor when the clamp engages the electric motor.

Abstract: A traction battery pack includes an enclosure assembly, a cell stack housed within the enclosure assembly and at least partially submerged within a coolant, and a vent manifold that receives vent byproducts from the cell stack. The vent manifold is housed within the enclosure assembly and at least partially submerged within the coolant.

Abstract: Immersion cooling systems are provided for traction battery packs. An exemplary immersion cooling system may include an intake manifold, an exhaust manifold, a first intake runner fluidly connected to the intake manifold and a first interior volume of a compartmentalized battery module, and a first exhaust runner fluidly connected to the exhaust manifold and the first interior volume. A cooling fluid (e.g., a dielectric) may be selectively communicated through the first interior volume for thermally managing the battery module. A flow control valve may be positioned within the first intake runner for controlling the flow through the first interior volume, and a control module may control a position of the valve based at least on a temperature of the cooling fluid exiting the first interior volume.

Abstract: An e-machine that provides propulsion and regenerative braking includes a rotor and a stator that includes pin conductors encircling the stator. Current is conducted around the stator for a plurality of phases of alternating current. Phase terminals and neutral terminals are connected by terminal connectors to a plurality of wires that connect to the neutral terminal or connect the phase terminals to a source of alternating current. The terminal contacts include means for dampening vibration disposed adjacent terminals. The means for dampening vibration may include a spiral segment of the wire that encircles the terminal or the spiral segment may be disposed adjacent the terminal. A flexible joint assembly may be a clamp including a terminal contact that is movable on ball bearings between an upper jaw and a lower jaw. Another flexible joint assembly may include a receptacle that receives a plug supported on ball bearings.

Abstract: A traction battery pack thermal barrier assembly includes a first outer shell; a second outer shell adjacent the first outer shell to define an insulation cavity; and an insulative material sandwiched between the first outer shell and the second outer shell within the insulation cavity. Baffles extend into the insulation cavity and restrict movement of the insulative material within the insulation cavity.

Abstract: A battery chiller for a vehicle includes a housing having a first inlet, a second inlet opposing the first inlet, a first outlet having a toroid structure surrounding the second inlet, and a second outlet having a toroid structure surrounding the first inlet. A lattice is disposed within the housing defining a first plurality of channels and a second plurality of channels. The lattice defines a first inlet duct in fluid communication with the first inlet and the first channels, and a second inlet duct in fluid communication with the second inlet and the second channels. A first flow path is defined from the first inlet, through the first inlet duct, through the first plurality of channels and to the first outlet, and a second flow path is defined from the second inlet, through the second inlet duct, through the second plurality of channels and to the second outlet.

Abstract: The present disclosure provides a method, apparatus, medium and device for extracting a river drying-up region and frequency, and belongs to the technical field of remote sensing. The method for extracting a river drying-up region and frequency can be applied to efficiently acquiring river drying-up information for a long time within the large spatial region. With the inverse normalized difference water index (iNDWI) and the maximum value composite (MVC) method for the remote sensing images, the present disclosure omits the troublesome step of separately extracting a river range for each image in the conventional method. In addition, the present disclosure quickly obtains the drying-up frequency by counting the total number of available images and the number of non-water images at the same pixel position, and yields a greater efficiency for extracting the river drying-up region and frequency.

Abstract: A method for applying varnish to an electric motor includes locating a varnish injector above a slot of a stator of the electric motor, depressing an intermediate layer in the slot with the varnish injector, and applying varnish from the varnish injector into a gap defined between the intermediate layer and a wall of the slot.

Abstract: An electric machine includes a plurality of laminations stacked to form a stator defining an end face and a plurality of slots spaced about a circumference of the stator. The electric machine further includes a plurality of inserts each disposed, and bonded to a portion of the end face, between an adjacent pair of the slots, and each defining an outer triangular-shaped tip that is radially outside the adjacent pair of the slots. The electric machine further includes end windings extending out from the adjacent pair of the slots and bent over a corresponding one of the inserts such that the end windings engage the corresponding one of the inserts and exert a compression force on the corresponding one of the inserts and the laminations.

Abstract: A traction battery pack may include an outer enclosure assembly. A traction battery pack may include a pressure equalization device received within a wall of the outer enclosure assembly. The pressure equalization device may include a housing and a valve configured to close a gas path through the housing during a battery thermal event of the traction battery pack. The valve may include a spring configured to urge the valve to close during the battery thermal event. The spring is held in place by a spring holder. The spring holder includes a first set of openings spaced-apart from the spring by a first distance, and a second set of openings spaced-apart from the spring by a second distance less than the first distance.

Abstract: Thermal management systems are provided for traction battery packs. An exemplary thermal management system may include a primary cooling system configured for directing a first cooling fluid through a first interior volume of one or more battery modules, and a secondary cooling system configured for directing a second cooling fluid through a second interior volume of an enclosure assembly that houses the one or more battery modules. The primary cooling system may establish a primary cooling path for thermally managing battery cells of the one or more battery modules, and the secondary cooling system may establish a secondary cooling path for thermally managing a terminal and/or a busbar of the one or more battery modules.

Abstract: A traction battery pack includes an enclosure assembly; and a pressure equalization device received within a wall of the enclosure assembly. The pressure equalization device includes a housing assembly and a flow restrictor configured to restrict flow through the housing assembly during a battery thermal event of the traction battery pack.

Abstract: A battery pack assembly includes a first battery cell stack, a second battery cell stack, and an enclosure having an interior area. The first and second battery cell stacks are housed within the interior area. A shield spans over the first and second battery cell stacks within the interior area. The shield defines a first channel with the first battery cell stack to receive vent byproducts from at least one battery cell within the first battery cell stack. The shield defines a second channel with the second battery cell stack to receive vent byproducts from at least one battery cell within the second battery cell stack.