Abstract: A floor structure of an electric vehicle floor structure includes a battery unit and an underfloor panel. The battery unit is arranged underneath a floor of a passenger compartment between front wheels and rear wheels. The underfloor panel covers an entire bottom surface of the battery unit from below. The underfloor panel is provided with a center panel and a surrounding panel. The center panel has a noise absorption material that arranged at a lateral-direction center and a longitudinal-direction center of the underfloor panel. The surrounding panel has a high-strength material arranged around the center panel.

Abstract: A lower box body, a battery pack and a vehicle, where the battery pack includes the lower box body and a battery cell; the lower box body has an accommodating area, and the battery cell is accommodated in the accommodating area; the lower box body is further provided with an exhaust port and an exhaust channel, and the exhaust port is in communication with the exhaust channel; the exhaust port is arranged in the lower box body of corresponding accommodating area; and the lower box body further includes an exhaust assembly, the exhaust assembly is blocked at the exhaust port, and the exhaust assembly is configured to be open when pressure in the accommodating area reaches a set value, so that gas in the accommodating area enters the exhaust channel through the exhaust port.

Abstract: The present disclosure provides an electric vehicle comprising a chassis, a front axle and a rear axle spaced apart and coupled to the chassis, and a battery frame assembly coupled to the chassis between the front axle and the rear axle. The battery frame assembly comprises a plurality of transversely extending members and a plurality of longitudinally extending members, wherein the plurality of transversely extending members and the plurality of longitudinally extending members define a matrix of battery pack receptacles configured to receive at least one battery pack. The battery frame assembly is configured to deflect torsionally in response to torsional deflection of the front axle relative to the rear axle.

Abstract: A vehicle body for an electrical vehicle includes: side sills, which are coupled to side surfaces of a floor panel, rear side members, front end portions of which overlap rear end portions of the side sills and which are coupled the side surfaces of the floor panel, a battery, which is positioned at a lower portion of the floor panel and is mounted to portions of the side sills in front of the rear side members and to portions at which the side sills overlap the rear side members, and rear extension members having a strength lower than any of the side sills and the rear side members, the rear extension members being connected at front ends thereof to rear ends of the rear side members, and the rear extension members being coupled to the side surfaces of the floor panel.

Abstract: The subject matter of the invention is a battery unit (100) for a hybrid vehicle (200), with a battery housing (10) which has a front side wall (23) directed towards the front side (22) of the hybrid vehicle (200) and a rear side wall (24) directed towards the rear side of the hybrid vehicle (200), and with at least one battery module (11) which is arranged in the battery housing (10), wherein at least one fuel tank (12) is arranged in the battery housing (10).

Abstract: A structure of an electric or hybrid vehicle includes a floor, a battery container secured beneath the floor, and a compressed foam plate arranged between the battery container and the floor.

Abstract: A carrier vehicle includes a front frame and a rear frame conveniently attachable to and detachable from the front frame. The front frame includes a frame body, at least one battery structure installed along an inner front side wall of the frame body and a connecting rod wheel component at a transverse bottom of the frame body. The rear frame comprises an operating handle, a handle joint base, a hydraulic component having an oil cylinder, a bearing component and a driving assembly. A bottom end of the operating handle is rotatably connected to the handle joint base, which includes a joint fixing base and a microswitch. The bearing component includes a bearing bridge having bridge lugs detachably connected to ends thereof, and a middle part sleeved on the oil cylinder. The front frame and rear frame are transportable in a separated compact configuration, with later simple and fast assembly.

Abstract: The present disclosure relates to a casing for a battery pack and a battery pack. The casing has a receiving space and an opening in communication with the receiving space, the receiving space is formed by a wall portion of the casing, and the wall portion is formed from two or more stacked base plates, between which a plurality of cavities are formed. By forming a plurality of cavities in the wall portion, the casing for a battery pack provided by the present disclosure not only can improve the bearing capacity and the impact resistance of the casing, but also can achieve a thermal management of the battery assembly by filling the plurality of cavities with a phase change material or cooling liquid, which can further improve the mechanical property of the casing with a relatively light weight and relatively high reliability.

Abstract: A rigid-flexible coupling multi-degree-of-freedom walking position-adjusting leg unit and a hybrid robot platform thereof is provided and includes a vertical rigid-flexible coupling multi-degree-of-freedom walking position-adjusting leg unit and a horizontal rigid-flexible coupling multi-degree-of-freedom walking position-adjusting leg unit, which both include a moving device, a moving drive, a steering frame, a lifting frame, a spring device and a driving differential wheel set, in combination with a frame, a driver set, a battery pack and a control box, forming a multi-degree-of-freedom parallel mechanism platform. The hybrid robot platform including the rigid-flexible coupling multi-degree-of-freedom walking position-adjusting leg unit as provided by the present disclosure has functions of a rigid position adjustment, an elastic suspension and a rigid-flexible coupling position adjustment, and can automatically adapt to a working condition of the uneven ground.

Abstract: A motion control system that includes a support motion control system and a body motion control system. The body motion control system includes passive motion control components and active motion control components.

Abstract: The invention relates to a system for installation of traction batteries for a vehicle having a chassis comprising at least one load-carrying frame member. A front bracket member and a rear bracket member are adapted to be secured to and project from the frame member of the vehicle for receiving a traction battery between the front bracket member and the rear bracket member. The system also comprises a first and a second slider adapted to be connected to a front and a rear side, respectively, of a traction battery. The sliders are adapted to be mated with the bracket members subsequently to the sliders having been connected to the traction battery, thereby enabling the traction battery by means of the connected sliders to be received by the bracket members and be moved towards the frame member of the vehicle.

Abstract: An electric vehicle battery pack with a strike shield affixed to its bottom. The strike shield provides structural support to withstand ground strikes without damaging the batteries within the battery pack. The strike shield is a mixed material sandwich bottom plate structure having a composite top layer, a middle core with one or more hollow members adhesively connected or welded together, or a single integrated structure with elongated stiffeners and/or a base member with elongated channels for stiffness, and a composite bottom layer.

Abstract: The disclosure relates to a method for producing a battery carrier for an electric battery module of a vehicle configured to electrically operate, the method may include: providing a material blank with a blank region; providing a heat exchanger structure in the blank region, that comprises hollow channels that are inseparably connected to the material blank, wherein the hollow channels are provided to regulate a temperature of the electric battery module using a fluid; and forming the material blank into a support tray with a tray base configured to support the electric battery module and with sidewalls that delimit the tray base at the sides of the tray base, wherein the tray base is developed from the blank region.

Abstract: Power supply device includes a plurality of secondary battery cells, a pair of end plates that cover both end faces of battery stack in which the plurality of secondary battery cells are stacked, a plurality of fastening members that fasten end plates to each other, a plurality of pressing parts that press upper surfaces of the plurality of secondary battery cells respectively, and buffer interposed between pressing parts and the upper surfaces of secondary battery cells. Buffer includes a plurality of covers made of resin, and a connecting part, having flexibility, for connecting two of the plurality of covers. Buffer is configured such that each of the plurality of covers is disposed on the upper surface of corresponding one of secondary battery cells, and each of pressing part abuts on the upper surface of the corresponding cover.

Abstract: A bicycle with removable battery for supplying power to electric components, comprising a frame composed of an upper tube connected with a front oblique tube and with a rear vertical tube, which in turn are connected in a lower region so as to form a seat for a bottom bracket and with which a pair of horizontal rear chainstays and a pair of oblique rear chainstays are coupled. The front oblique tube has an axial seat for a removable battery and for accommodating connection and/or electric power supply cables. The axial seat has an axis that passes above the bottom bracket and a lower end that is open and located at the interspace between the pair of horizontal rear chainstays.

Abstract: To simultaneously avoid contact with a front subframe and secure a connection space for a harness, a front subframe has a right and left pair of side frame sections, each of which is located in front of and below a dashboard. A converter and a vehicle component are provided behind a rear end portion of one of the side frame sections. The converter is arranged along a lower surface of a floor panel, and the vehicle component is arranged adjacent to rear of the converter. The converter is arranged in a vertically inclined state, a front-end portion of the converter is located higher than the rear end portion of the side frame section, and a rear end portion of the converter is located lower than the vehicle component.

Abstract: Charging units communicate with an electric vehicle charger controller. A database stores charger data on each of the charging units. A first interface within the electric vehicle charger controller enables communication between the electric vehicle charger controller and the charging units. A second interface within the electric vehicle charger controller enables communications between the electric vehicle charger controller and mobile charging applications to find locations of at least one of the charging units and make reservations with at least one of the charging units. A charger locator controller on the electric vehicle charger controller performs real-time determination of a closest charging unit responsive to the charger data and a current position of an electric vehicle. A reservation controller on the electric vehicle charger controller enables a user of one of the mobile charging applications to select the closest charging unit and make a reservation with the closest charging unit.

Abstract: A battery storage device includes a battery case (42), a case side connection terminal (43), a lid member (8), a lock mechanism (133), and an operation member (44). The lock mechanism (133) is capable of fixing a battery (62A or 62B) stored in the battery case (42) to the battery case (42) below the lid member (8). The operation member (44) is constituted such that at least a part thereof overlaps an inserting/removing port (136) on an upper side in a view in an insertion direction of the battery (62A or 62B) in a state at a lock operation position.

Abstract: This disclosure relates to a battery assembly of an electrified vehicle, and in particular to a battery pack with a vent gas passageway. An example battery assembly includes a battery array having a plurality of battery cells. Each of the battery cells includes a vent configured to release vent gas from a respective one of the battery cells. Further, the battery assembly includes an enclosure assembly surrounding the battery array, and a vent gas passageway within the enclosure assembly. The vent gas passageway includes a plurality of inlet ports, and each of the inlet ports is substantially aligned with a respective one of the vents.

Abstract: This disclosure details systems and methods for supporting and isolating vehicle body mounted battery packs from various vehicle loads. An exemplary electrified vehicle may include a frame, a battery support structure mounted to the frame, a battery pack, and one or more isolators. The battery pack is supported by the battery support structure but is not mechanically coupled to the frame. The isolator is mounted between the battery pack and the battery pack support structure for isolating the battery pack from loads that may be imparted on the frame and/or the battery support structure.

Abstract: A vehicle includes a vehicle body in which a mounting chamber is provided, and an equipment unit disposed within the mounting chamber. The equipment unit includes a compartment cross member extending in one direction, the compartment cross member of which a first end portion and a second end portion situated on respective ends in the first direction being fixed to the vehicle body, and a first equipment and a second equipment fixed to the compartment cross member and disposed with a spacing between each other. A rigidity of the equipment unit at a portion situated between the first equipment and the second equipment is higher than a rigidity of the equipment unit at a portion where the first end portion is situated.

Abstract: A traction battery pack venting system includes a plurality of battery arrays within a traction battery pack. The battery arrays each have a plurality of individual battery cells. The system further includes a divider system that provides a plurality of vented gas receiving compartments. Each of the vented gas receiving compartments are separate and distinct from the other vented gas receiving compartments within the plurality of vented gas receiving compartments. Each of the vented gas receiving compartments are associated with one of the battery arrays. Each of the vented gas receiving compartments can be associated with a manifold. The vent gas produced from thermal runaway can be discharged to the vented gas receiving compartments, directed to a manifold, and discharge to the external atmosphere.

Abstract: An electrified vehicle assembly includes a frame that has a passenger side rail and a driver side rail. The assembly further includes a battery support plate and a battery pack. The battery support plate is secured to the passenger side rail and the driver side rail. The battery pack has a plurality of cross-members. To secure the battery pack to the battery support plate, mechanical fasteners each extend through an aperture in the battery support plate to engage one of the cross-members.

Abstract: A battery storage device for an electric vehicle includes a reinforcing panel that reduces impact energy and is disposed between a case and a battery module, whereby, when a car collision occurs, the battery module is protected from impact by the reinforcing panel, damage to the battery module is reduced, stability of the vehicle is secured, and manufacturing costs are reduced.

Abstract: A battery monitoring apparatus includes a battery ECU, satellite devices each of which measures the voltage at a battery cell in response to a command signal from the battery ECU, and a wireless module which achieves a wireless communication between the battery ECU and each of the satellite devices after a wireless connection between the battery ECU and each of the satellite devices is completed. When receiving a start signal outputted before a start switch for a drive power source of the vehicle is turned on, the wireless module is activated to start the wireless connection between the battery ECU and each of the satellite devices. This establishes and completes the wireless connections faster than when the wireless module is activated simultaneously with turning on of the start switch for the drive power source. This achieves quick monitoring of the state of the battery cells.

Abstract: A tractor trailer battery system having a battery compartment containing one or more battery units which house one or more battery cells, electrical leads from the battery units to a trailer mounted controller in electrical communication with a cab mounted controller which is in electrical communication an electric motor or hybrid engine system. The battery system allows for either the trailer mounted controller or the cab mounted controller to provide principal communication to the electric motor or hybrid engine system.

Abstract: A power storage device is a power storage device provided on a lower surface of a floor panel of a vehicle, the power storage device including: a housing case; a power storage module housed in the housing case; and a cooler housed in the housing case to cool the power storage module, wherein the housing case includes a bottom plate, a refrigerant passage through which a refrigerant flows is formed in a portion of the housing case, the portion being located above the bottom plate, and the refrigerant passage is connected to the cooler.

Abstract: A power supply device mounting structure for a power supply device disposed below a seat disposed in a vehicle interior is provided. The power supply device mounting structure includes a plate member and a contact portion. The plate member is disposed between the power supply device and a seat surface portion of the seat and the plate member covers an upper surface of the power supply device. The contact portion is provided at a position facing an edge portion of the plate member and the contact portion comes into contact with the seat surface portion when a load is input from the seat surface portion.

Abstract: A battery module includes a cell stack in which a plurality of unit cells are aligned in a first direction and including an insulating member surrounding the plurality of unit cells; and a module housing in which a plurality of receiving parts into which the cell stack is inserted are provided, wherein the receiving part includes a fixing wall surrounding the cell stack and having at least a portion which is in contact with the cell stack.

Abstract: A battery unit equipped in a vehicle includes a battery, a case accommodating the battery, an upper surface covering material covering an upper surface of the battery in the case, an intake portion provided on the upper surface covering material and configured to take in air from an outside of the case to above the battery, a lower surface covering material covering a lower surface of the battery in the case, an exhaust portion provided on the lower surface covering material and configured to discharge air that has cooled or heated the battery, a fan disposed below the lower surface covering material, configured to take in air discharged from the exhaust portion, and discharge the air between the lower surface covering material and a bottom surface of the case.

Abstract: The present disclosure provides a chassis assembly and a vehicle. The chassis component includes: a chassis provided with a plurality of mounting positions and configured to install a battery module; a quick-release device through which the battery module is installed on the mounting positions, wherein the quick-release device is controlled by a control system; and a voltage electrical connecting assembly electrically connected to the battery module, wherein the voltage electrical connecting assembly is controlled by the control system. The vehicle includes the chassis assembly.

Abstract: Battery cases are formed such that a small second battery case is disposed on an upper front part of a large first battery case, the second battery case is disposed below a front part of a seat cushion of a rear seat, a recess portion extending in a fore-and-aft direction and having at least part of an exhaust passage member passing therethrough is formed in a lower face of a middle part in a vehicle width direction of the first battery case, battery modules housed in the first battery case are disposed on left and right sides of the recess portion, and a battery module housed in the second battery case is disposed so that a longitudinal direction thereof follows the vehicle width direction. Therefore, it is possible to ensure the headroom for a rear seat by disposing the rear seat at as low a position as possible.

Abstract: An electric vehicle system includes an electric vehicle and a delivery charger. The electric vehicle includes a chassis, a cab coupled to a front end of the chassis, and a battery supported by the chassis. The delivery charger includes a support, a power generator coupled to the support, a fuel tank coupled to the support and fluidly coupled to the power generator, and a mounting assembly coupled to the support. The power generator is configured to receive a fuel from the fuel tank and generate electricity to charge the battery. The mounting assembly is configured to facilitate releasably mounting the delivery charger at least one of (i) directly to the chassis, (ii) within a body assembly coupled to the chassis, or (iii) to a lift assembly coupled to the body assembly.

Abstract: An electric vehicle has longitudinal sills, arranged on both sides of the electric vehicle, and a traction battery, arranged between the sills, for driving the electric vehicle. The traction battery has a device for degassing the traction battery in the case of a thermal event. A duct for carrying gas during degassing of the traction battery is formed in the electric vehicle between at least one of the longitudinal sills and the traction battery. An electric vehicle of this kind ensures increased occupant protection and increased component protection.

Abstract: A front end structure of a vehicle is disclosed and includes a housing having a fluid reservoir portion, a fan shroud portion, a back face, a bolster portion, a first air passage communicating airflow to an air intake system, and a second air passage in communication with a higher pressure airflow. A fan assembly is mounted within the fan shroud portion and a radiator mounted to the back face of the housing. A battery compartment is in communication with airflow from the second air passage for maintain battery temperature within a predefined range. A headlight also receives an airflow to actively remove moisture from an inner cavity. A method of assembling a front end structure is also disclosed.

Abstract: An electric vehicle body structure includes an installation space being downwardly open and upwardly delimited by a floor body-panel profile section. A traction battery is inserted into the space from below, a battery housing flange under the profile section is screwed from below to the profile section at a screw connection having a vertical screw bolt penetrating a housing flange passage and screw hole in the profile section and screwed to a weld nut at a flange housing opposite side of the profile section. The flange is clamped between screw bolt head and profile section. A crash displaces the battery until an inner passage wall presses screw bolt against screw hole edge, subjecting the screw bolt to shear load reduced by an elongated weld nut shaft projecting into the screw hole. The screw bolt presses against the screw hole edge, with the weld nut shaft in intermediate position.

Abstract: A battery case mounting structure for an electric vehicle includes: a vehicle body floor in which a plurality of seats are installed; a battery case provided below the vehicle body floor, having a battery module therein, and including an air inlet, through which air is suctioned, disposed on a rear side of the battery case, and an air outlet, through which air is discharged, disposed on a front side of the battery case; an intake duct configured to communicate with the air inlet at an upper portion of the vehicle body floor and guide interior air to an interior of the battery case; and a discharge duct configured to communicate with the air outlet at the upper portion of the vehicle body floor, extending from the upper portion of the vehicle floor to a rear side of the vehicle body floor, and configured to discharge air to outside.

Abstract: A drone is deployed from a vehicle, e.g., an autonomous or semi-autonomous vehicle, to assist in vehicle control, e.g. in situations in which the vehicle's embedded sensors may not provide sufficient information to perform a desired operation safely, e.g. backing up, parking in a tight environment, traversing a very narrow road, navigating a sharp corner, or bypassing an obstruction, etc. The deployed drone includes sensors, e.g. cameras, radars, LIDARs, etc, which capture sensor data from a position offset from the vehicle. Captured sensor data is communicated from the drone to a vehicle control system in the vehicle and/or to a remote control system, e.g., including an operator who can make decisions. Based on the captured sensor data, which supplements sensor data collected by the vehicle's embedded sensors, vehicle movement is controlled.

Abstract: A vehicle body structure for safely protecting a high-voltage, the vehicle body structure including: a battery mounted on bottom portions of a center floor and a rear floor; and a protective structure having a bottom portion on which a peripheral portion of the battery is mounted and including panels fitted to each other into a shape covering a peripheral portion of the center floor.

Abstract: An embodiment vehicle impact energy absorption system includes a pair of front side members, a battery assembly disposed under a center floor of a vehicle, a front subframe disposed below the pair of front side members and located in front of the battery assembly, the front subframe being connected to the pair of front side members through a pair of support arms and a pair of support brackets, wherein each support arm of the pair of support arms is provided on the front subframe, and each support bracket of the pair of support brackets is provided on each front side member of the pair of front side members, respectively, and an electric motor mounted on the front subframe.

Abstract: An electric vehicle may include: a floor panel; and a battery pack located below the floor panel. the battery pack may include: a bottom plate; a plurality of battery stacks distributed on the bottom plate along a longitudinal direction of the electric vehicle with an interval provided between the battery stacks; a battery crossmember located between the battery stacks; a plurality of end plates each of which is fixed to a side surface of corresponding one of the battery stacks; a first load transmitting component extending from the battery crossmember to a position located higher than upper surfaces of the battery stacks; and a second load transmitting component located outward of the first load transmitting component in the width direction. The second load transmitting component may be a component extending to a position higher than the upper surfaces of the battery stacks.

Abstract: Provided is a vehicle equipped with a battery pack. A vehicle equipped with a battery pack includes a battery pack under a floor of the vehicle. The battery pack is provided with a battery module. In the battery module, a plurality of batteries are arranged vertically with the longitudinal direction directed toward a front-rear direction of the vehicle body. The battery is formed by stacking a plurality of battery cells in the front-rear direction of the vehicle body. A center of gravity of pack of the battery pack is arranged at the rear of a center of gravity of vehicle of the entire vehicle in the vehicle body.

Abstract: A power supply device includes: a battery; an electric device; a case accommodating the battery and the electric device; and a cover covering a case opening. The cover is provided with a first exhaust port and a second exhaust port. A first exhaust member having a first exhaust passage through which air discharged from the first exhaust port flows is connected to the first exhaust port. A second exhaust member having a second exhaust passage through which air discharged from the second exhaust port flows is connected to the second exhaust port. The first exhaust port is provided so as to overlap at least a part of the electric device when viewed from an opening direction and has a larger opening area than the second exhaust port. A minimum cross-sectional area of the first exhaust passage is smaller than a minimum cross-sectional area of the second exhaust passage.

Abstract: A scalable power unit for powering one or more electric motors of a riding vehicle and/or a piece of outdoor power equipment includes a number of interconnected battery packs. The battery pack are received in a battery tray or stacked to form the scalable power unit. Each battery pack is configured to be removed and used separately or added to a combination of battery packs. A control unit selectively opens and closes switching elements to separately control the connections between the battery packs and an electrical load, such as a motor. During charging, the control unit opens and closes switching elements to control the charging rate of the individual battery packs. When the battery packs are connected to an electrical load, the control unit controls the state of the switching elements to selectively discharge the battery packs to power the riding vehicle and/or electric loads.

Abstract: A material handling vehicle is provided, which includes a frame having an aperture directed through the frame and configured to receive a battery pack, and a counterweight assembly. The counterweight assembly includes a counterweight having a first opening, and an opposite second opening, a first positioning rod having a first end, and an opposite second end. The first end is directed through the first opening. A first nut is threadingly engaged with the second end of the first positioning rod. The first nut is rotated in a first direction to advance the first end of the first positioning rod farther through the first opening to contact the frame, thereby adjusting the position of the counterweight relative to the frame.

Abstract: A vehicular battery unit includes a lower case, including a pair of battery-receiving sections disposed at two lateral sides of a vehicle, and a connecting section, which is disposed between the pair of battery-receiving sections and is convex upwards, battery modules mounted in the battery-receiving sections, a lower cross member, which is fixed to a lower surface of the lower case and extends beyond the lower surface of the lower case in a lateral direction of the lower case, the lower cross member being bent upwards beyond the lower surface of the lower case and bent in the lateral direction of the lower case, and an upper cross member, which is fixed to a lateral side surface of the lower case, is bent in the lateral direction of the lower case, and is coupled to the lower cross member.

Abstract: A refuse vehicle includes a chassis, a body, and a plurality of battery cells. The chassis includes a right frame member and a left frame member spaced apart in a lateral direction and extending lengthwise in a longitudinal direction. The body is coupled to the chassis. The plurality of battery cells are longitudinally disposed along the chassis, positioned between the right frame member and the left frame member.

Abstract: A straddle-type electric vehicle, comprising a pair of left and right main frames, a seat rail extending rearward from a rear portion of each of the main frames, a pivot frame extending downward from a rear portion of each of the main frames, a swing arm supported by the pivot frame, a battery arranged in a space between the main frames, a power unit arranged in the space, a wind guiding duct for guiding traveling wind to the space, and an air outlet port for emitting the traveling wind, the air outlet port being provided so as to be capable of emitting the traveling wind inside the wind guiding duct from a lower portion of a vehicle body to an area below the vehicle body.

Abstract: It is described herein an apparatus for removing and installing a battery for an electrically driven vehicle, and a related method for removing and installing a battery into an electrically driven vehicle. The apparatus may comprise a guide system, a battery containment structure, and a linear motion device. The guide system may comprise a first track and a second track. The battery containment structure may comprise a first plurality of bearings and a second plurality of bearings, and may be configured to receive and hold the battery.

Abstract: A battery module includes: a plurality of battery cells mutually laminated in a first direction and forming a laminated structure; a pair of end plates being in surface contact with a first and a second ends of the laminated structure in the first direction; and a pair of busbar assemblies disposed at the first and the second ends of the laminated assembly in a second direction perpendicular to the first direction, each bus bar assembly of the pair of bus bar assemblies including a busbar configured to mutually join electrodes of the plurality of battery cells located at the first and the second ends of the laminated structure in the second direction, a circuit board on which an electrical connection to the busbar is formed, and a connector installed on the circuit board and electrically connected to the busbar assembly through the circuit board.