Abstract:
The disclosure provides a battery device comprising a plurality of battery cells and at least one heat dissipation container. The heat dissipation container includes a frame and two thin films. The frame includes a perforation portion. The thin films are connected to the frame, and cover the perforation portion of the frame to form an enclosed space between the thin films and the frame. A liquid of water or aqueous solution is placed in the enclosed space. A bottom of each of the battery cells is adjacent to the corresponding thin film of the heat dissipation container. When the temperature of one of the battery cells is too high, the thin film of the heat dissipation container will damage to generate a broken hole. Then, the liquid will spray out of the heat dissipation container, and contact the battery cell to reduce the temperature of the battery cell.
Abstract:
This disclosure provides a battery management system. The battery management system comprises a buck converter, a discharge loop, and a microprocessor. The microprocessor comprises a battery status monitoring circuit, a timer, and a controller. When the status of the battery is in a static state, the timer starts counting a time. If the time counted by the timer is greater than or equal to a time threshold, the controller controls that the buck converter executes a bucking to an output voltage of the battery, and then controls that the discharge loop executes a discharging to the battery. Accordingly, when the status of the battery is in a static state, the battery capacity can be discharged to a safe value moderately, so that the safety of the long-storage of the battery can be ensured, and the life of the battery can be prolonged.
Abstract:
The invention provides a battery module for improving safety, which comprises at least one fixing frame, a plurality of battery cells, a plurality of conductive sheets and a plurality of protection units. The battery cells are arranged on the fixing frame. Each conductive sheet is connected with two battery cells in series, each of the protection units is respectively connected with two conductive sheets, and the battery cells connected with the conductive sheets are connected in parallel via the protection unit. When the temperature of the protection unit is greater than a preset temperature, the protection unit will be blown, thereby preventing the battery cells from charging the defective battery cell, resulting in the defective battery cell to melt or explode.
Abstract:
A connection module for protecting battery cells includes a plurality of conductive sheets, a plurality of conductive wires, or a conductive mesh. The conductive sheets are connected with at least one battery cell. The conductive wires or the conductive mesh is connected to the conductive sheets. An electrical conductivity of the conductive wires or the conductive mesh is higher than that of the conductive sheets. When the battery cells connected to the conductive sheets damages, it may cause an electrolyte ejected from the battery cells, or a large current passing through the conductive wires or the conductive mesh, such that the conductive wires or the conductive mesh is burned and melted to achieve the purpose of protecting other battery cells.
Abstract:
A control module adapted to brush and brushless motors essentially applies a magnetic sensor to generate detecting signals in response to the status of the motor and deliver those signals to a control unit. The control unit further converts the signals into discrete diverting signals for driving the rotating direction, phase commands for controlling the motor phase, and a pulse width modulation (PWM) for adjusting the motor speed. A phase refining circuit thence receives those transformed signals and confirms merely a selected phase command attendant with the diverting and PWM signals for assisting a stable operation of the motor. Therefore, such control module not only applies to different types of motors but uses the separate transmissions of the signals responsible for designated instructions to attain facile controls and appropriate adjustments to the errors of the motor phase or motor velocity and efficiently decrease the occurrence of breaking the motor.
Abstract:
A control module adapted to brush and brushless motors essentially applies a magnetic sensor to generate detecting signals in response to the status of the motor and deliver those signals to a control unit. The control unit further converts the signals into discrete diverting signals for driving the rotating direction, phase commands for controlling the motor phase, and a pulse width modulation (PWM) for adjusting the motor speed. A phase refining circuit thence receives those transformed signals and confirms merely a selected phase command attendant with the diverting and PWM signals for assisting a stable operation of the motor. Therefore, such control module not only applies to different types of motors but uses the separate transmissions of the signals responsible for designated instructions to attain facile controls and appropriate adjustments to the errors of the motor phase or motor velocity and efficiently decrease the occurrence of breaking the motor.
Abstract:
The present invention provides a protection circuit applied to a battery module, which includes a self-control protector, a switch element and a voltage clamping loop; the self-control protector includes a fuse unit and a heater; when the switch element receives a control signal, the switch element will be turned on; when the switch element is turned on, the voltage clamping loop provides a clamp voltage to clamp a working current passing through the self-control protector within a current range where the fuse unit can be blown; and as such, the fuse unit of the self-control protector will be blown by the working current heating the heater.
Abstract:
The invention provides a battery equipment discharge balancing method, wherein a battery module of the battery equipment includes a plurality of battery blocks connected in parallel, and each battery block includes a plurality of battery cells connected in series. During the discharging process, the voltage of each battery cell is measured to generate a plurality of battery cell voltages. When any one of battery cell voltages reaches a cut-off discharge voltage, it is determined that the battery module is fully discharged. Thereafter, a minimum battery cell voltage in each battery block is obtained respectively to generate a plurality of cut-off battery cell voltages. The discharge ratio of each battery block in the next discharge process is adjusted according to the cut-off battery cell voltages respectively, so as to increase the discharge capacity and service life of the battery module.
Abstract:
The present invention provides a battery module, including a plurality of battery cells, a plurality of conductive sheets, and at least one plastic protective layer, wherein each conductive sheet is connected in series or in parallel with a plurality of battery cells. The plastic protective layer is formed on the partial surface of the conductive sheet by injection molding to prevent the electrolyte leaked from the defective battery cell from contacting the conductive sheet, causing rise in temperature of the battery cell and causes melt or explosion of the battery cell, which is helpful to improve the safety of the battery module.
Abstract:
The invention provides a method for estimating a battery capacity of an electronic device. When a current or an average current of the battery is zero, a reference capacity is inquired from a look-up table based on a voltage of the battery. When a previously remaining capacity is greater than a reference capacity, a deduction process of a self-consumable capacity is performed one or more times for a previously recorded remaining capacity to obtain a new recorded remaining capacity smaller than the reference capacity. When the current of the battery is less than zero, a deduction process of a count capacity of discharging is performed one or more times for the previously recorded remaining capacity until a power of the battery is exhausted to obtain a first offset capacity. The first offset capacity is deducted from a previously recorded full charge capacity to estimate a new full charge capacity.