18 results about "Main battery" patented technology

The invention discloses a battery tank structure of an unmanned aerial vehicle (UAV) and relates to the technologies of battery tank structures of UAVs. The battery tank structure can solve the problem of large space occupation of a battery tank of an existing UAV. A main battery tank body is of a rectangular structure, is placed in the middle of a UAV body, the side wall of the tank body is provided with a plurality of positioning holes, and a battery locking mechanism is fixed by the positioning holes and fixedly connected to a battery after the battery is inserted into the battery tank; byfixing the battery locking mechanism to the positioning holes in different positions, the position of the battery in the whole UAV body is adjusted, and correspondingly the position of the gravity center of the UAV body is adjusted. The structure is mainly used for UAVs.

A power supply device includes a main battery, a backup battery, a first charge circuit, a second charge circuit, a first transistor, a second transistor, a switch element, and a control circuit. The first transistor has a control terminal for receiving a first control voltage, a first terminal coupled to the main battery, and a second terminal coupled to a first supply node. The second transistor has a control terminal for receiving a second control voltage, a first terminal coupled to the backup battery, and a second terminal coupled to a midway node. The switch element selectively couples the midway node to a second supply node according to a third control voltage. The control circuit monitors a first supply voltage at the first supply node, and generates the third control voltage according to the first supply voltage.

A power supply device includes a main battery, a backup battery, a first charge circuit, a second charge circuit, a first transistor, a second transistor, a switch element, and a control circuit. The first transistor has a control terminal for receiving a first control voltage, a first terminal coupled to the main battery, and a second terminal coupled to a first supply node. The second transistor has a control terminal for receiving a second control voltage, a first terminal coupled to the backup battery, and a second terminal coupled to a midway node. The switch element selectively couples the midway node to a second supply node according to a third control voltage. The control circuit monitors a first supply voltage at the first supply node, and generates the third control voltage according to the first supply voltage.

A thruster system for improved steering and maneuverability of a marine vessel when operating at relatively low, or wakeless speeds, such as in the vicinity of docks, swimmers or other obstacles, or when trailering, beaching or mooring. The thruster system has a modularized design adapted to independently control separate motor / propeller units located at various positions on the vessel's hull. Each propeller of the modular thruster motor system has its own relatively small, electric motor and mounting bracket, permitting each motor to be separately mounted to a location on the hull of the marine vessel apart from other thruster motors. The thruster system is further enhanced by an electrical control system for controlling each modular thruster motor system of the thruster system. In some embodiments, a charging system is provided that permits each electrical control system to be separately charged from the marine vessel's main battery.

The invention relates to an electric shovel (1) comprising: - a chassis (2) including a recess (7) which is configured to accommodate a main set of batteries (6); - a turret (3) mounted so as to rotate freely on the chassis and including an articulated arm (4); - an auxiliary set of batteries (13) configured to supply an auxiliary power circuit (30) of the shovel that allows the rotation of the turret and the use of the articulated arm, so as to remove the main set of batteries by means of the articulated arm. The invention also relates to a method for autonomously removing and a method for autonomously installing a set of batteries between an installed position in a recess of an electric shovel and a removed position outside the recess, the electric shovel including a turret mounted so as to rotate freely on a chassis and supporting an articulated arm.

The control device includes a control unit that controls power supply from a main battery of the vehicle to a sub battery, and a calculation unit that calculates an estimated value of a full charge capacity of the main battery. When the error between the full charge capacity and the estimated value is larger than the predetermined value, the control unit calculates a power supply duration in which the power supply of the sub-battery to the load continues while the power supply is stopped, and a required time for eliminating the polarization of the main battery, and stops the power supply when the power supply duration is equal to or longer than the required time. The calculation unit calculates a voltage after a required time has elapsed since the power supply is stopped. After the voltage is calculated, the control unit resumes the power supply.

To provide a disaster power supply device for a ship that can be charged with surplus power generated by an outboard motor without interfering with the operation of a small ship, and can be carried to an evacuation site or the like in the event of a disaster and used as an emergency power supply. [Solution] A marine disaster power supply device 1 that is connected to the main battery 100 of a small boat to charge excess power and be used as a power source in the event of a disaster. It comprises a disaster battery 2 that charges excess power from the power supplied from the outboard motor 300 to the main battery 100, an isolator 3 that is connected to the main battery 100 and switches charging to the disaster battery 2 when the main battery 100 is fully charged, an outlet 4 that is connected to the disaster battery 2 via the isolator 3 and enables the power charged in the disaster battery 2 to be supplied to the outside, and a portable housing 5 that incorporates the disaster battery 2, isolator 3 and outlet 4 and is equipped with a handle 53 for carrying.

The invention relates to a control device. The control device includes: a control unit that controls supply of power from a main battery to a sub-battery of a vehicle; and a calculation unit that calculates an estimated value of the full charge capacity of the main battery. When an error between the full charge capacity and the estimated value is greater than a predetermined value, the control unit calculates a continuous power supply time during which the neutron battery continuously supplies power to the load when the power supply is stopped, and a required time for eliminating polarization of the main battery, and stops the power supply when the continuous power supply time is equal to or greater than the required time. The calculation unit calculates the voltage after a required time has elapsed from when the power supply is stopped. The control unit resumes power supply after calculating the voltage.

The present invention provides a power management circuit with a function of controlling the voltage input of a backup battery, comprising a main battery, a backup battery, a reference voltage module, and a voltage management module. The main battery outputs a first voltage, the backup battery outputs a second voltage, and the reference voltage module outputs a reference voltage. The voltage management module receives the first voltage, the second voltage, and the reference voltage, outputs an operating voltage to a load, and a voltage divider converts the first voltage into a third voltage. When both the first voltage and the second voltage are invalid voltages, the operating voltage exhibits a high-impedance state. When the first voltage is a valid voltage and the second voltage is an invalid voltage, the operating voltage is the first voltage. When the second voltage is a valid voltage and the first voltage is an invalid voltage, the operating voltage is the second voltage. When both the first voltage and the second voltage are valid voltages, if the third voltage is greater than the reference voltage, the operating voltage is the first voltage. If the third voltage is less than the reference voltage, the operating voltage is the second voltage.

The invention relates to an electric shovel loader (1) comprising: - a chassis (2) supported by movement members (4), - a turret (3) mounted so as to be free to rotate on the chassis about a vertical axis (X) distant from the lateral edge (5) of the chassis by a length d, the turret having a radius of rotation Ri; - an articulated arm (6) fixed to the turret; - an electric motor configured to actuate the rotation of the turret, the movements of the articulated arm and / or the transmission of the movement members; - a main battery (9) for powering the electric motor, the main battery being removably mounted on the chassis or the turret while being comprised, as viewed along the vertical axis (X), in a circle of radius R2 centred on the vertical axis (X), the ratios of R1 to d and of R2 to d being less than or equal to 1.40.

The invention relates to an electric excavator (1) comprising: - a chassis (2) having a housing (7) configured to receive a main battery pack (6); - a turret (3) freely mounted for rotation on the chassis and having an articulated arm (4); - an auxiliary battery pack (13) configured to power an auxiliary power circuit (30) of the excavator, which enables the rotation of the turret and the use of the articulated arm so as to deposit the main battery pack by means of the articulated arm. The invention also relates to a method for autonomously depositing and a method for autonomously positioning a battery pack between a position placed in a housing of an electric excavator and a position placed outside the housing, the electric excavator having a turret freely mounted for rotation on a chassis and supporting an articulated arm. Figure for the abstract: Fig. 1

The application relates to a charging and discharging control circuit and a power consumption device. The charging and discharging control circuit comprises a charging control module connected with a backup battery; a switching switch module connected with the charging control module and a main battery for powering a load, the switching switch module being used in a first state or a second state, wherein the first state is a charging loop for connecting the charging control module and the main battery to connect the backup battery to power the main battery, and the second state is a discharging loop for connecting the main battery and the load; and a discharging control module connected with the main battery and the switching switch module. The application can automatically switch to the backup battery to charge the main battery, thereby solving the problem of insufficient battery power.

A thruster system for improved steering and maneuverability of a marine vessel when operating at relatively low, or wakeless speeds, such as in the vicinity of docks, swimmers or other obstacles, or when trailering, beaching or mooring. The thruster system has a modularized design adapted to independently control separate motor / propeller units located at various positions on the vessel's hull. Each propeller of the modular thruster motor system has its own relatively small, electric motor and mounting bracket, permitting each motor to be separately mounted to a location on the hull of the marine vessel apart from other thruster motors. The thruster system is further enhanced by an electrical control system for controlling each modular thruster motor system of the thruster system. In some embodiments, a charging system is provided that permits each electrical control system to be separately charged from the marine vessel's main battery.

A thruster system for improved steering and maneuverability of a marine vessel when operating at relatively low, or wakeless speeds, such as in the vicinity of docks, swimmers or other obstacles, or when trailering, beaching or mooring. The thruster system has a modularized design adapted to independently control separate motor / driver units located at various positions on the vessel's hull. Each driver (e.g., propeller or impeller) of the modular thruster motor system has its own relatively small, electric motor and mounting bracket, permitting each motor to be separately mounted to a location on the hull of the marine vessel apart from other thruster motors. The thruster system is further enhanced by an electrical control system for controlling each modular thruster motor system of the thruster system. In some embodiments, a charging system is provided that permits each electrical control system to be separately charged from the marine vessel's main battery.

Short-radius electric excavator comprising a removable battery. The invention relates to an electric excavator (1) comprising: - a chassis (2) supported by drive elements (4), - a turret (3) freely mounted for rotation on the chassis about a vertical axis (X) located a distance d from the lateral edge (5) of the chassis, the turret having a radius of rotation R1; - an articulated arm (6) fixed to the turret; - an electric motor configured to drive the rotation of the turret, the movements of the articulated arm and / or the transmission of the drive elements; - a main battery (9) for powering the electric motor, the main battery being removably mounted on the chassis or the turret and being contained, viewed along the vertical axis (X), within a circle of radius R2 centered on the vertical axis (X), the ratios of R1 to d and R2 to d being less than or equal to 1.40. Figure for the abstract: Fig. 2

The invention relates to an on-board electrical system comprising at least one main battery (1), a primary network (VR1) directly supplied from the main battery, a voltage converter (3) supplying a secondary network (VR2), the voltage converter being supplied from the main battery by a first power line (2), the first power line comprising at least one smoothing filter (22), the system being characterized in that it comprises an external control circuit (4) for the converter, configured to selectively activate or deactivate the operation of the voltage converter, so as to minimize the voltage drop on the primary network at the time of the voltage converter's start-up. Abstract figure: Fig. 1

The present disclosure generally relates to automatic smart jump start battery packs (broadly, reserve power supply systems) for machinery. In exemplary embodiments, a battery pack is configured (e.g., includes a microcontroller, etc.) to automatically detect when machinery (e.g., a water pumping system, etc.) needs a jump start from the battery pack. For example, a microcontroller (e.g., broadly, a controller, etc.) within the battery pack may be configured to determine when the machinery's main battery does not have a sufficient charge to operate an electric starter motor of the machinery, e.g., when a main battery signal from a voltage sensor falls below a predetermined level, etc.

To provide a work vehicle capable of causing an operator to recognize reduction in battery residual amount before the battery residual amount is used up and enabling charging or replacement of a battery without trouble.SOLUTION: This work vehicle comprises: a vehicle body capable of travelling; a work device installed on the vehicle body; a main battery 70 that supplies power to a pump drive motor 53 for operating the work device; an operation device that operates the work device; and a controller 60 that controls the pump drive motor 53 in response to the operation of the operation device. The controller 60 includes a restriction release switch 65 that monitors a residual amount of the main battery 70, restricts the operation of the pump drive motor 53 when the monitored amount of the main battery 70 drops equal to or below a prescribed value, and releases the restriction imposed by the controller 60.SELECTED DRAWING: Figure 3