Abstract: The present invention discloses an external battery short-circuit testing device, configured to perform short-circuit test on a battery pack under test. The external battery short-circuit testing device comprises a plurality of fuses; a Hall current transducer, coupled to the plurality of fuses; a current meter, coupled to the Hall current transducer and the battery pack under test; a voltmeter, coupled to the battery pack under test; a variable resistor, coupled to the Hall current transducer; an electromagnetic switch, coupled to the variable resistor and the battery pack under test; and an operation unit, comprising a voltage measurement unit, a current measurement unit, a temperature measurement unit and a switch control unit.

Abstract: The present invention discloses a grinding cavity body of multiple vibration sources, in which a plurality of ultrasonic vibration sources are disposed, capable of controlling the multi-directional macroscopic medium flow, making benefits to the vibration medium (the abrasive of the slurry) to enter the fine structure of the workpiece to be processed, and to the abrasive to vibrate itself slightly to enhance the performance of abrasive to the workpiece which needs to be ground.

Abstract: The present invention discloses a multi-dimensional vibration grinding cavity body. By adjusting amplitudes (power) and frequencies of the multi-dimensional ultrasonic vibration source, such that the multi-directional macroscopic flow is formed in the cavity body while keeping the vibration medium to have the original characteristics to improve the performance of grinding of slurry.

Abstract: A cold plate for a battery module comprising a plurality of cells that produces heat as charging and discharging is disclosed. The cold plate includes a plurality of first fins distributed in a first subarea of the cold plate; and a plurality of second fins distributed in a second subarea of the cold plate; wherein a second fin coverage of the plurality of second fins distributed in the second subarea is smaller than a first fin coverage of the plurality of first fins distributed in the first subarea when an amount of heat absorption of the second subarea from the plurality of cells is greater than an amount of heat absorption of the first subarea from the plurality of cells.

Abstract: A liquid cooling module comprises a cooling plate, including a plurality of cooling channels for liquid flowing, and a pump block, integrated with the cooling plate and including a pump and a heat exchange chamber connecting to the plurality of cooling channels of the cooling plate, to form a circulation loop.

Abstract: A powder recycling system includes a supply tank, a continuous loss-in-weight module, a pneumatic module, a transfer channel, a recycle module, and a refilling tank. The supply tank accommodates recycling powder. The continuous loss-in-weight module includes a storage tank receiving the recycling powder from the supply tank and a rotary output pipe connected to the storage tank to output the recycling powder. The continuous loss-in-weight module controls the mass flow rate of the output of the recycling powder according to the weight change of the storage tank. The pneumatic module enables the recycling powder to float and move in the transfer channel. The recycle module is connected to the transfer channel to receive the recycling powder, sieves the recycling powder, provides virgin powder, and mixes the virgin powder with the recycling powder. The refilling tank is connected to the recycle module to receive the recycling powder and the virgin powder.

Abstract: The curved flow channel with built-in lattice structure provided by the present application is configured with the lattice structure disposed at the outer inside wall of the curved section away from a center of curvature of the curved section. Through geometry and distribution design of the lattice structure, flow rate and flow direction of fluid impacting the lattice structure can be altered, which achieves the purpose of flow rate redistribution in the curved flow channel and produces a downstream flow field with uniform distribution.

Abstract: A liquid cooling module comprises a cooling plate, including a plurality of cooling channels for liquid flowing, and a pump block, integrated with the cooling plate and including a pump and a heat exchange chamber connecting to the plurality of cooling channels of the cooling plate, to form a circulation loop.

Abstract: A charging method for a battery set with a plurality of battery cells, having steps of performing a serial charging on the battery cells; determining whether one of the battery cells reaches a saturation voltage; and performing a uniform separately charging on the battery cells when one of the battery cells reaches the saturation voltage, wherein the uniform separately charging comprises sorting the battery cells according to cell voltages of the battery cells; and sequentially and separately charging the sorted battery cells to a Nth segmented voltage in a Nth segmentation, wherein N is a positive integer from 1 to K, and K is a positive integer larger than 1. The charging method of the present disclosure can reduce the temperature rising of the battery cell due to the longtime charging.

Abstract: A charging control method includes the following. (a) An electrical state of a battery set is obtained. (b) Whether the electrical state is greater than a first electrical state threshold is determined and charging control based on a first charging mode or a second charging mode on the battery set is performed accordingly. (c) During the charging control on the battery set, at least one temperature difference value is determined based on temperature values of the battery set at different times. (d) Whether the temperature difference value is greater than a first temperature difference threshold is determined and whether to temporarily stop or continue the charging is determined accordingly. (e) During the charging control on the battery set, the electrical state is obtained, and whether the electrical state satisfies a fully-charged criterion is determined and whether to stop or continue the charging control is determined accordingly.

Abstract: A battery balance management circuit includes an active and passive testing balance bus, a plurality of battery sets, a primary charging converter, a secondary charging system, an electrical load and a battery management system. An external balance management mechanism is utilized to compensate for current loss of the battery set, effectively enabling the battery sets to provide stable large current output.

Abstract: An electrical system having a master node, at least one slave node and a bus linked to both of the master node and the slave node is illustrated. The master node check whether a reception register of the slave node does not receives a new data for a first time period, and resets the slave node while the reception register of the slave node does not receives the new data for the first time period; and the slave node checks whether the reception register of the slave node does not receives the new data for a second time period, and resets the slave node itself while the reception register of the slave node does not receives the new data for the second time period. Therefore, the communication stability of the electrical system can be enhanced.

Abstract: Electric vehicle range extending apparatus includes a step-down voltage provision unit, cell voltage sensing unit, cell switching unit, and control unit. The step-down voltage provision unit has an input port to be coupled to the main battery pack or an auxiliary battery pack, and an output port to output a power balancing signal. The cell voltage sensing unit is for being coupled to the battery cells and sensing individual voltages of the battery cells. The cell switching unit, including a plurality of switches, is coupled to the battery cells respectively, and coupled to the output port. The control unit, coupled to the cell voltage sensing unit, step-down voltage provision unit, and cell switching unit, is for controlling the cell switching unit based on the individual voltages of the battery cells so as to apply the power balancing signal to at least one of the battery cells selectively.

Abstract: The curved flow channel with built-in lattice structure provided by the present application is configured with the lattice structure disposed at the outer inside wall of the curved section away from a center of curvature of the curved section. Through geometry and distribution design of the lattice structure, flow rate and flow direction of fluid impacting the lattice structure can be altered, which achieves the purpose of flow rate redistribution in the curved flow channel and produces a downstream flow field with uniform distribution.

Abstract: A battery balance management circuit includes an active and passive testing balance bus, a plurality of battery sets, a primary charging converter, a secondary charging system, an electrical load and a battery management system. An external balance management mechanism is utilized to compensate for current loss of the battery set, effectively enabling the battery sets to provide stable large current output.

Abstract: A charging method for a battery set with a plurality of battery cells, having steps of performing a serial charging on the battery cells; determining whether one of the battery cells reaches a saturation voltage; and performing a uniform separately charging on the battery cells when one of the battery cells reaches the saturation voltage, wherein the uniform separately charging comprises sorting the battery cells according to cell voltages of the battery cells; and sequentially and separately charging the sorted battery cells to a Nth segmented voltage in a Nth segmentation, wherein N is a positive integer from 1 to K, and K is a positive integer larger than 1. The charging method of the present disclosure can reduce the temperature rising of the battery cell due to the longtime charging.

Abstract: An electrical system having a master node, at least one slave node and a bus linked to both of the master node and the slave node is illustrated. The master node check whether a reception register of the slave node does not receives a new data for a first time period, and resets the slave node while the reception register of the slave node does not receives the new data for the first time period; and the slave node checks whether the reception register of the slave node does not receives the new data for a second time period, and resets the slave node itself while the reception register of the slave node does not receives the new data for the second time period. Therefore, the communication stability of the electrical system can be enhanced.

Abstract: A replacing device for a laminated manufacturing platform is provided. The replacing device has a box, a carrying body, and a lifting mechanism. The box includes two slides. The carrying body can slide on the slide and be replaced by another carrying body. Thus, problems that a working platform of a laminated manufacturing equipment is not moved, workpieces are not automatically produced and the workpieces are not synchronously replaced can be effectively solved.

Abstract: A powder recycling system includes a supply tank, a continuous loss-in-weight module, a pneumatic module, a transfer channel, a recycle module, and a refilling tank. The supply tank accommodates recycling powder. The continuous loss-in-weight module includes a storage tank receiving the recycling powder from the supply tank and a rotary output pipe connected to the storage tank to output the recycling powder. The continuous loss-in-weight module controls the mass flow rate of the output of the recycling powder according to the weight change of the storage tank. The pneumatic module enables the recycling powder to float and move in the transfer channel. The recycle module is connected to the transfer channel to receive the recycling powder, sieves the recycling powder, provides virgin powder, and mixes the virgin powder with the recycling powder. The refilling tank is connected to the recycle module to receive the recycling powder and the virgin powder.

Abstract: A charging control method includes the following. (a) An electrical state of a battery set is obtained. (b) Whether the electrical state is greater than a first electrical state threshold is determined and charging control based on a first charging mode or a second charging mode on the battery set is performed accordingly. (c) During the charging control on the battery set, at least one temperature difference value is determined based on temperature values of the battery set at different times. (d) Whether the temperature difference value is greater than a first temperature difference threshold is determined and whether to temporarily stop or continue the charging is determined accordingly. (e) During the charging control on the battery set, the electrical state is obtained, and whether the electrical state satisfies a fully-charged criterion is determined and whether to stop or continue the charging control is determined accordingly.