摘要:
There is disclosed an electrical device and a method in which a battery is warmed up when operating from a sub-zero temperature. The electrical device may include a battery; an electrical storage element; and a battery management system including a controller in electrical communication with the battery and the electrical storage element. The controller can be configured to execute a program stored in the controller to shuttle energy between the battery and the electrical storage element until a power capability threshold of the battery has been reached, Shuttling the energy raises a temperature of the battery to meet power demand.
摘要:
There is disclosed an electrical device including a battery pack, a pressure sensor for measuring a volume change of the battery pack, a voltage sensor in electrical communication with a positive terminal and a negative terminal of the battery pack, a temperature sensor positioned in a cell of the battery pack, and a battery management system. The battery management system includes a controller in electrical communication with the pressure sensor, the voltage sensor, and the temperature sensor, the controller being configured to execute a program stored in the controller to determine a state of charge percentage of the battery pack based on a pressure reading from the pressure sensor, a terminal voltage reading from the voltage sensor, and a temperature reading from the temperature sensor.
摘要:
There is disclosed an electrical device including a battery pack, a pressure sensor for measuring a volume change of the battery pack, a voltage sensor in electrical communication with a positive terminal and a negative terminal of the battery pack, a temperature sensor positioned in a cell of the battery pack, and a battery management system. The battery management system includes a controller in electrical communication with the pressure sensor, the voltage sensor, and the temperature sensor, the controller being configured to execute a program stored in the controller to determine a state of charge percentage of the battery pack based on a pressure reading from the pressure sensor, a terminal voltage reading from the voltage sensor, and a temperature reading from the temperature sensor.
摘要:
There is disclosed an electrical device and a method in which a battery is warmed up when operating from a sub-zero temperature. The electrical device may include a battery; an electrical storage element; and a battery management system including a controller in electrical communication with the battery and the electrical storage element. The controller can be configured to execute a program stored in the controller to shuttle energy between the battery and the electrical storage element until a power capability threshold of the battery has been reached, Shuttling the energy raises a temperature of the battery to meet power demand.
摘要:
An electronic mobile device is disclosed. The electronic mobile device includes a housing including a plurality of sidewalls, a receiving space formed by the sidewalls, a slot formed in one of the sidewalls, and a non-conductive portion received in the slot. The non-conductive portion includes a non-metal body having a first surface facing the receiving space and a second surface opposed to the first surface. An antenna module is coupled with the housing, and the antenna module comprises an antenna coil locating on the first surface of the non-metal body.
摘要:
A manufacturing method of a retaining wall of an LED, the method includes the steps of: step A, providing a ceramic substrate; providing a printing screen; providing ceramic slurry including thermal curing agent; step B, forming multiple pairs of electrodes on the ceramic substrate; depositing the ceramic slurry on the ceramic substrate by the printing screen for forming a first ceramic layer around each pair of electrodes; step C, drying the first ceramic layer for twenty to thirty minutes under a temperature between 100 to 150 centigrade for hardening the first ceramic layer; step D, depositing the ceramic slurry on the first ceramic layer for forming a second ceramic layer by the printing screen, and then hardening the second ceramic layer; step E, repeating step D for forming a third ceramic layer for forming the retaining wall.
摘要:
A manufacturing method of a retaining wall of a light emitting diode includes the steps of: providing a ceramic substrate; providing a soft mold having a plurality of molding concaves; forming plurality of electrode groups on the ceramic substrate; filling the ceramic slurry into the corresponding molding concaves; pressing the soft mold on the ceramic substrate; forming a plurality of retaining walls by curing the ceramic slurry using UV curing porcess and connecting the retaining walls on the ceramic substrate by pressing the soft mold; and separating the soft mold from the ceramic substrate. Compared with the traditional technology, the manufacturing method of the present invention is quite simple and can greatly reduce the process steps of screen printing for improving the production efficiency.
摘要:
An electronic mobile device is disclosed. The electronic mobile device includes a housing including a plurality of sidewalls, a receiving space formed by the sidewalls, a slot formed in one of the sidewalls, and a non-conductive portion received in the slot. The non-conductive portion includes a non-metal body having a first surface facing the receiving space and a second surface opposed to the first surface. An antenna module is coupled with the housing, and the antenna module comprises an antenna coil locating on the first surface of the non-metal body.
摘要:
A method for manufacturing a retaining wall of an LED is disclosed. The method includes the steps of: providing a substrate and applying a photosensitive layer on the substrate; exposing the photosensitive layer for forming a pattern of the retaining wall of the LED; removing the exposed photosensitive layer by etching process for forming a recess with a shape corresponding to the pattern of the retaining wall; filling the recess with ceramic slurry by screen printing process; drying the left photosensitive layer and the ceramic slurry for hardening the ceramic slurry, and then removing the left photosensitive layer; and sintering the ceramic slurry for forming the ceramic retaining wall.