4results about How to "Guaranteed current efficiency" patented technology

The sampling method includes: identifying (S11) whether a waveform of a current period falls at a boundary of a sector region where a phase current of at least one phase is unable to be collected; determining (S12) a first duty cycle and a transforming channel mode for a channel of the at least one phase; storing (S13) the first duty cycle and the transforming channel mode in a buffer, and enabling a direct memory access (DMA) mode to the buffer at the same time; transforming (S14) a part of the waveform of the current period by configuring the channel of the at least one phase with the first duty cycle and the transforming channel mode; and acquiring (S15) the phase current of the at least one phase based on a transformed waveform of the current period.

The present disclosure relates to the technical field of motors, and in particular, relates to a stator assembly and a motor. The stator assembly includes: a stator core and a winding; wherein a plurality of stator slots are arranged in the stator core, the stator slots being successively arranged in an annular array along a circumferential direction of the stator core; and the winding is wound on a rectangular conductor; wherein a plurality of layers of rectangular conductors are mounted in each of the stator slots, the layers of rectangular conductors being successively arranged along a radial direction of the stator core; wherein an average cross-sectional area of the rectangular conductors close to a center of the stator core is greater than an average cross-sectional area of all the rectangular conductors in the stator slot. This reduces loss density, balances heat generation and heat dissipation of different conductors in the stator slots, so as to improve heat dissipation performance of the motor by reducing a maximum temperature of the motor.

The invention discloses an electrochemical reduction method of liquid indigo with controllable alkali concentration. According to the method, a plate and frame type electrolytic cell is adopted, a mixed alkaline aqueous solution of indigo and a chemical reducing agent is used as a catholyte, an acidic aqueous solution is used as an anolyte, a three-dimensional porous carbon-based conductive material is used as a cathode, and a noble metal electrode is used as an anode; a direct current or pulse current sequentially passes through an anolyte, a diaphragm and a catholyte from an anode to a cathode for an electrochemical reduction reaction, and indigo in the catholyte is electrochemically reduced into indigo, so that the concentration of alkali in the catholyte is controllable by using a sulfuric acid solution in the anolyte, and the ratio of the concentration of alkali in the electrolyte to the concentration of indigo is less than 3.4; in addition, under the condition that the alkali concentration is controllable, it can be guaranteed that the current efficiency of indigo electroreduction reaches 58.7%, and the indigo conversion rate reaches 93.1%.

A die coater capable of simultaneously coating a current collector with two different liquids in multiple layers includes a first body with a first manifold for an electrode slurry, a second body with a second manifold coupled to the first body to form a first slit through which the electrode slurry in the first manifold is discharged, and a third body coupled to the second body to form a second slit through which the electrode slurry in the second manifold is discharged. The first slit is formed by a first and third shim that are interposed between coupling surfaces of the first and second body, and the second slit is formed by a second and fourth shim that are interposed between coupling surfaces of the second and third body, and at least any one of the third shim and the fourth shim forms an insulating liquid slit.