A method is provided for arranging a high-voltage accumulator having a plurality of battery modules on a support structure of a motor vehicle, in which the battery modules are arranged and fastened on a base plate, and the base plate is fastened on a bottom plate of the support structure of the motor vehicle, as a result of which the base plate and the bottom plate provide an accumulator housing which delimits an accumulator interior in which the battery modules are accommodated. At least one connection field is mechanically connected to the support structure. The connection field is able to electrically and/or fluidically connect the high-voltage accumulator to the motor vehicle.

An apparatus for electrically and mechanically coupling battery modules to an electric vehicle includes an interface plate and one or more battery trays. The interface plate includes an electrical output that electrically couples the interface plate to the vehicle. The interface plate also includes an electrical input that is electrically coupled to the electrical output. The battery tray is configured to receive a plurality of replaceable battery modules and is releasably mechanically coupled to the interface plate.

A riding lawn mower comprising, a pair of rear drive wheels, a pair of front wheels, a deck positioned between the pair of front wheels and the pair of rear drive wheels, a rotatable cutting blade, and multiple battery packs removably coupled to the riding lawn mower and structured to provide power to the riding lawn mower, each battery pack graspable and removable by a user, wherein the multiple battery packs jointly provide power to the riding lawn mower.

An energy storage system for vehicles is provided which is formed by a battery and a compartment for its accommodation which allows the insertion and removal of batteries and their connection to the electrical system of the vehicle with ease, quickly and at a low cost, both manually and based on auxiliary tools with different degrees of automation; the battery includes electrical connection elements and communication connection elements and is inserted in or removed from the compartment with a horizontal movement. The compartment includes electrical connection elements and communication connection elements complementary to those of the battery and allows cooling the battery; in this way, an electric vehicle can incorporate batteries as needed, adjusting its cost to its real use and reducing the waiting times due to charging its energy storage.

An apparatus for providing a secondary power source for an electric vehicle, the apparatus attachable to the electric vehicle and having at least one secondary electrical power storage unit for storing electrical energy for delivery to the electric vehicle as required to replace the primary power source, a power connection assembly to connect the at least one secondary power source to the electric vehicle and a control system to control supply to the electric vehicle.

A concrete mixer truck includes a chassis, a plurality of tractive assemblies coupled to the chassis, a mixing drum rotatably coupled to the chassis, the mixing drum defining an internal volume configured to contain material and an aperture through which the material can enter and exit the internal volume, an energy storage device positioned at a rear end of the chassis and configured to provide electrical energy, and an electromagnetic device electrically coupled to the energy storage device, where the electromagnetic device is configured to receive the electrical energy from the energy storage device and provide mechanical energy to drive at least one of the plurality of tractive assemblies to propel the concrete mixer truck.

A removable battery fixing assembly of an electric vehicle includes a removable battery module and a fixing device installed in the electric vehicle. The removable battery module has a main body with first and second side surfaces. A guiding bar is disposed on the first side surface. The fixing device includes a base, a driving part, a main transmission part, a guiding part, a first stopping part, and a second stopping part. When installing the removable battery module, the guiding bar is aligned with and moved along the guiding part. When moving the removable battery module to a specified position, the driving part drives the main transmission part horizontally, so that the first stopping part is correspondingly rotated to urge against an end part of the guiding bar. Meanwhile, the plural connection elements correspondingly drive the second stopping part to lock the second side surface of the removable battery module.

An assembling method of an electric vehicle comprises the steps of: assembling a vehicle body including a frame, wheels and an electric motor; conducting a vehicle body test including confirmation of a state of driving power transmission from the electric motor to the wheels by connecting an electric power supply unit installed in a vehicle body test place to the electric motor of the vehicle body and supplying electric power from the electric power supply unit to the electric motor; detaching the electric power supply unit from the electric motor and transporting the vehicle body which has passed the vehicle body test from the vehicle body test place to a mounting place, in a state in which a battery is not mounted to the vehicle body; and mounting the battery to the transported vehicle body in the mounting place.

A removable module and a method for operating the removable module. The removable module has a multipurpose connector that connect the removable module to a motor when the removable module is attached to a vehicle. Dual-purpose circuitry in the removable module can output electric energy to the motor when the multipurpose connector connects the removable module to the motor. The multipurpose connector can connect the removable module to the electric vehicle supply equipment when the removable module is detached from the vehicle. While the removable module is detached from the vehicle, the dual-purpose circuitry cannot output electric energy to the motor. When the multipurpose connector connects the removable module to the electric vehicle supply equipment, the dual-purpose circuitry can receive electric power from the electric vehicle supply equipment.

The invention relates to an arrangement comprising an energy storage module, a module carrier, particularly a vehicle body, and a ball lock bolt for fastening the energy storage module on the module carrier.