Abstract: Embodiments of the present disclosure provide a rotor, a motor, a powertrain, and a vehicle. The rotor includes wedges and pole shoes. The wedges fit the pole shoes through curved portions. The curved portions can effectively relieve stress concentration of joint portions, increase strength of the wedges and the pole shoes, and effectively increase effective winding space of slots in the rotor. In this way, power density of a motor in which the rotor is used is increased.

Abstract: The present invention relates to a coated ion exchange substrate suitable for use in chromatography medium and methods of making thereof.

Abstract: This application relates to the field of motor technologies, and provides a motor rotor, a drive motor, and an electric vehicle. In the motor rotor, a rotor core with at least two protruding components is designed. At least two magnetic steels and at least two sheets are disposed in grooves between the at least two protruding components and then coupled to the rotor core with a rotor pressing plate. In addition, one SMC sheet is stacked on each of the magnetic steels, so that an eddy current loss of a permanent magnet can be effectively reduced. Each of the magnetic steels is disposed in a groove between protruding components, and the SMC sheet is added, so that a saliency ratio is increased, a reluctance torque ratio is increased, and a quantity of magnetic steels for use is reduced.

Abstract: The present application discloses an information transmission method and apparatus, which are used to reduce service delay. The information transmission method provided in the present application comprises: a terminal determines first parameters, the first parameters being used to indicate service latency requirements and/or delay jitter requirements of the terminal; and the terminal sends the first parameters by means of a random access uplink message.

Abstract: An electrolytic eluent generator includes an electrolyte reservoir, an eluent generation chamber, and an ion exchange membrane stack. The electrolyte reservoir includes a chamber containing an aqueous electrolyte solution including an electrolyte; and a first electrode. The eluent generation chamber including a second electrode. The ion exchange connector includes an ion exchange membrane stack, and a compression block.

Abstract: A controller for a drive motor and a related device thereof. In response to that a temperature of the power battery is greater than or equal to a preset battery temperature, the controller controls an output current of the inverter circuit, so that the drive motor outputs torque to drive a wheel. In response to that a temperature of the power battery is less than a preset battery temperature, the controller adjusts an output current of the inverter circuit based on a result of comparison between a voltage of the power battery and a preset battery voltage, to control the output current of the inverter circuit to increase heat generated by the three-phase stator winding of the drive motor. The power battery may be heated by using the heat generated by the drive motor, thereby reducing costs.

Abstract: A motor rotor, a motor, and an electric vehicle are disclosed. The motor rotor includes an iron core yoke, a spoke plate, and at least two permanent magnets. The at least two permanent magnets are fastened to the iron core yoke and sequentially spaced apart in the circumferential direction. The spoke plate is located between adjacent permanent magnets. A quadrature-axis magnetic circuit is reserved between adjacent permanent magnets, and the spoke plate whose reluctance is less than that of air or the permanent magnet material is disposed on the quadrature-axis magnetic circuit, that is, the spoke plate is disposed between the adjacent permanent magnets. In this way, reluctance of the quadrature-axis magnetic circuit may be reduced, and quadrature-axis inductance may be increased. Accordingly, a reluctance torque is increased, and a torque output capability of the motor is improved.

Abstract: A cooling structure for a disk electric motor, and a disk electric motor are provided. The cooling structure includes: a stator core, a stator housing, multiple first baffles and multiple second baffles. Multiple coils are arranged on the stator core, and there is a gap between adjacent ones of the coils; a stator housing enclosing two end faces of the stator core, where a first cavity is defined by the stator housing and an outer side of the stator core, a second cavity is defined by the stator housing and an inner side of the stator core, where the first cavity and the second cavity are in communication with each other through the gap, and a liquid inlet and a liquid outlet which are in communication with the first cavity are arranged on the stator housing.

Abstract: An anion exchange for separating a plurality of carbohydrates includes a negatively charged substrate particle. A base polymer layer includes a first plurality of quaternary amines. The polyalkylpolyamine polymer layer is covalently attached to the base condensation polymer layer. The polyalkylpolyamine polymer layer includes a polymeric branch structure that includes a second plurality of quaternary amines. A density of the second plurality of quaternary amines increases in a direction away from the base condensation polymer layer. The anion exchange stationary phase does not have a hydroxy group spaced apart from any one of the first or the second plurality of quaternary amines by an ethyl group.

Abstract: A cooling structure for a disc electric motor is provided, including a stator core, a stator housing, a first baffle, a second baffle, a first coil, a second coil, and a partitioner. The first coil and the second coil are arranged on each of stator units. First coils on adjacent stator units are in a close fit with each other, and second coils on the adjacent stator units are in a close fit with each other. The partition plate is interposed between the first coil and the second coil. A third cooling channel, through which a first cavity and a second cavity are communicated, is formed between the adjacent stator units.

Abstract: A building blocks that can be easily assembled or disassembled, comprising a building block main body. Each side of the building block main body is configured with a connecting structure. A plurality of building block main bodies is joined together through the connecting structures. The connecting structure comprises a connecting seat and a connecting rod. The connecting seat has an open connecting slot. The inner walls on the two sides of the open connecting slot are both formed with positioning bumps. The two sides of the connecting rod are respectively configured with a first and a second positioning slot. The two sides of the connecting rod are further configured with a first and a second guide slot that are respectively communicated to the first and the second positioning slot.

Abstract: An electrolytic eluent generator includes an electrolyte reservoir, an eluent generation chamber, and an ion exchange membrane stack. The electrolyte reservoir includes a chamber containing an aqueous electrolyte solution including an electrolyte; and a first electrode. The eluent generation chamber including a second electrode. The ion exchange connector includes an ion exchange membrane stack, and a compression block.

Abstract: A motor rotor includes a wound rotor comprising a rotating shaft, a rotor core, and a plurality of rotor coils. The rotor core is fixedly sleeved on the rotating shaft, a plurality of winding holes surrounding the rotating shaft are provided at intervals on the rotor core, each winding hole penetrates through two ends that are of the rotor core and that are disposed in an axial direction, each rotor coil is wound on hole walls of two adjacent winding holes, and two adjacent rotor coils share one winding hole. A gap is formed between two adjacent rotor coils, a first shaft hole is formed on the rotating shaft, the gap is configured as a first heat dissipation channel connected to the first shaft hole, and the first heat dissipation channel is used for inflow of coolant in the rotating shaft.

Abstract: A drive motor and a retarder in a powertrain meet a condition that a harmonic order of the drive motor is the same as a quantity of gear teeth of an input shaft gear in the retarder such that a frequency of an electromagnetic noise harmonic generated by the drive motor is the same as a frequency of a noise harmonic generated by the retarder. When the drive motor and the retarder are coupled using a connection structure, a phase of the electromagnetic noise harmonic generated by the drive motor differs from a phase of the noise harmonic generated by the retarder by a set angle.

Abstract: A motor stator, in which a flux winding is bent into a wave shape, and may be divided into a plurality of first parts, a plurality of second parts, and a plurality of third parts based on winding positions on a stator core. In a process of embedding flux windings into stator slots on the stator core, the flux windings may be directly sunk into the stator slots one by one, so that the second part is embedded into the stator slot, the first part is located on an outer surface of the stator core, and the third part is located on an inner surface of the stator core. It is quite easy to wind the flux windings on the stator core, so that a problem of difficult tapeout caused by a small volume of the motor stator is resolved.

Abstract: An electrically excited motor drive system is integrated with an on-board charger (OBC), so that a power supply circuit that is in an electric vehicle and that is configured to drive an electrically excited motor can be integrated with an OBC of a dual active bridge (DAB) type. When a control component controls a switch circuit, the electrically excited motor drive system obtained after integration can separately implement a function of the power supply circuit or a function of the charging circuit in different working modes. In addition, when the electrically excited motor drive system is in different working modes, some circuits are further reused through time division. This addresses a problem that the power supply circuit cannot be integrated with the OBC of the DAB type, to reduce circuit complexity and costs of the electric vehicle.

Abstract: A building blocks that can be easily assembled or disassembled, comprising a building block main body. Each side of the building block main body is configured with a connecting structure. A plurality of building block main bodies is joined together through the connecting structures. The connecting structure comprises a connecting seat and a connecting rod. The connecting seat has an open connecting slot. The inner walls on the two sides of the open connecting slot are both formed with positioning bumps. The two sides of the connecting rod are respectively configured with a first and a second positioning slot. The two sides of the connecting rod are further configured with a first and a second guide slot that are respectively communicated to the first and the second positioning slot.