Abstract: A rotor sheet includes a sheet body. The sheet body includes a plurality of magnetic poles symmetrically distributed in a circumferential direction of the sheet body. Each magnetic pole includes one first magnet groove symmetrical about a D-axis center line, two second magnet grooves symmetrically distributed in an approximate V shape about the D-axis center line, two first air grooves symmetrically distributed on the outer sides of two ends of the first magnet groove, and one second air groove positioned between the ends of the two second magnet grooves near the side of the center of the sheet body. First magnetic bridges are formed between the first air grooves and an excircle of the sheet body, and second magnetic bridges are formed between the first magnet groove and the first air grooves; and third magnetic bridges are formed between the excircle of the sheet body.

Abstract: A rotary motor sheet and rotor are provided. The rotary motor sheet includes a sheet body. The sheet body includes a plurality of magnetic poles distributed in a circumferential direction of the sheet body. Each magnetic pole includes a pair of first magnet grooves and a pair of second magnet grooves symmetrically distributed in a D-axis center line of the each magnetic pole, respectively, and a spacing between the first magnet grooves and a spacing between the second magnet grooves are both widened in an outer circumferential direction of the rotary motor sheet along the D-axis center line of the each magnetic pole. A through hole symmetrical about the D-axis center line of the each magnetic pole is provided between two second magnet grooves, a weight-reducing hole is provided between an incircle of the rotary motor sheet and an area between every two adjacent magnetic poles.

Abstract: A rotor sheet includes a sheet body. The sheet body includes a plurality of magnetic poles symmetrically distributed in a circumferential direction of the sheet body. Each magnetic pole includes one first magnet groove symmetrical about a D-axis center line, two second magnet grooves symmetrically distributed in an approximate V shape about the D-axis center line, two first air grooves symmetrically distributed on the outer sides of two ends of the first magnet groove, and one second air groove positioned between the ends of the two second magnet grooves near the side of the center of the sheet body. First magnetic bridges are formed between the first air grooves and an excircle of the sheet body, and second magnetic bridges are formed between the first magnet groove and the first air grooves; and third magnetic bridges are formed between the excircle of the sheet body.

Abstract: A method for video search is disclosed. The method includes: at a display device: obtaining a search content inputted into a search box by a user in real time, the search box displayed on the display device; determining target words according to the search content being inputted; searching videos associated with the target words to generate graphic and text information of the videos; displaying the graphic and text information in the form of a pull-down list on the display device; receiving an operation of choosing among the graphic and text information in the pull-down list by the user; and obtaining the corresponding video to play according to the chosen graphic and text information.