1011results about How to "Reduce temperature rise" patented technology

The invention relates to the technical field of charging management, and discloses an intelligent charging management method, device and equipment for an electric scooter and a storage medium, and the method comprises the steps: carrying out the parameter collection and initialization setting of a single-phase bidirectional converter and a permanent magnet synchronous motor in the electric scooter, obtaining system basic parameters and communication data, and obtaining a network authentication identifier and a charging station operation parameter. And dynamic planning of a charging strategy is executed according to the parameters to generate a segmented charging control curve. And the data are input into the self-adaptive prediction controller to realize real-time adjustment in the charging process, and charging state data and power compensation parameters are obtained. And adopting a double-neural network model structure to obtain a battery safety feature matrix and a fault probability vector. And constructing a three-dimensional charging state space model to carry out optimization calculation on the power compensation parameters, inputting a deep reinforcement learning network to carry out iterative optimization, and generating charging control parameters of the next period, thereby improving the charging efficiency and the electric energy quality of the electric scooter.

The invention discloses a motor with heat pipe integrated arc-shaped radiating fins, and relates to the technical field of motors. In order to solve the problems that in the long-time operation process of an existing motor, due to the fact that internal assemblies such as a winding and an iron core generate a large amount of heat, straight-strip-shaped or blade-shaped cooling fins are adopted, the cooling effect is poor, the motor is overheated, and then the driving efficiency of the motor is reduced. A plurality of arc-shaped heat dissipation fins are evenly arranged on the outer surface of a shell in the circumferential direction, each arc-shaped heat dissipation fin comprises a channel, an evaporation section and a condensation section, the condensation section is in an arc shape, the evaporation section and the condensation section are connected end to end, the channels are machined in the evaporation section and the condensation section in the length direction, the surface area is increased through the arc-shaped heat dissipation fins, and the heat dissipation efficiency is improved. The air flow path is optimized, the heat pipes are arranged in the channels in the arc-shaped heat dissipation fins, heat on the surface of the shell is better transmitted to the outer sides of the fins through the heat pipes, heat transmission is accelerated, and the temperature rise of the motor during working is effectively reduced. The invention is suitable for the field of motor heat dissipation.

The invention discloses a stator windowing diversion centripetal oil-cooled motor, which comprises a stator assembly, a rotor assembly, a casing and an oil injection component with a windowing diversion structure, the stator assembly comprises a plurality of laminated punching sheet lamination sections, oil holes are circumferentially distributed in the outer circle side of each punching sheet, and the oil holes of the lamination sections are communicated with one another; the stator assembly is fixed in the machine shell, a cooling cavity is formed among the periphery of the stator assembly, the periphery of the rotor assembly and the machine shell, the rotor assembly penetrates through the inner side of the stator assembly, the two ends of the rotor assembly are rotationally connected with end covers of the machine shell respectively, a rotating shaft oil channel communicated with the cooling cavity is formed in the inner side of the rotor assembly, and an oil injection component of a windowing flow guide structure is arranged at the end of the stator assembly. And the oil injection components at the two ends of the stator iron core are communicated with the cooling cavity through an internal oil channel in the outer circle of the stator iron core. Oil enters the iron core and then flows to the two end faces of the iron core, the oil is sprayed out through the spraying holes, and the oil is guided and sprayed to the winding through the oil spraying component of the windowing flow guide structure. The cooling device has the advantages of compact structure, remarkable cooling effect and the like.

The invention belongs to the technical field of battery system fire protection, and particularly relates to a battery pack liquid cooling plate runner structure with fire protection and a method thereof, the structure comprises a liquid cooling plate, a fire protection structure is fixedly mounted at the top of the liquid cooling plate, and a heat exchange structure is arranged at the top of the liquid cooling plate and far away from the fire protection structure; the fire fighting structure comprises a fire fighting intervention flow channel, the fire fighting intervention flow channel is formed in an inner cavity of the liquid cooling plate, the top of the liquid cooling plate communicates with a fire fighting liquid inlet pipe, branch flow channels are formed in the inner surface of the fire fighting intervention flow channel, and fire fighting medium spraying holes are formed in the inner surfaces of the branch flow channels. According to the battery pack liquid cooling plate flow channel structure with the fire protection function and the method thereof, the fire protection pipe is inserted into the fire protection liquid inlet pipe, then the combined battery packs are stacked into a battery cabinet, and when the battery packs emit heat, heat is exchanged through flowing of cooling liquid, so that the temperature difference of the battery packs is smaller, the temperature rise is lower, and the service life of the whole battery pack is prolonged; and meanwhile, when the temperature of a single battery pack is abnormal, cooling can be performed immediately.

The invention discloses an asymmetric radial electromagnetic bearing and a design method thereof, and the asymmetric radial electromagnetic bearing comprises an asymmetric radial electromagnetic bearing stator, an asymmetric radial electromagnetic bearing rotor and a winding coil. The design method of the asymmetric radial electromagnetic bearing comprises the following steps: pre-determining parameters; calculating the electromagnetic force of the asymmetric radial electromagnetic bearing in the X and Y directions; and calculating each structural parameter of the asymmetric radial electromagnetic bearing. Compared with a traditional symmetric radial electromagnetic bearing structure and an asymmetric electromagnetic bearing disclosed at present, the asymmetric radial electromagnetic bearing has the advantages that electromagnetic force coupling in the horizontal and vertical directions is small, control is facilitated, electromagnetic loss is low, and temperature rise of the rotor can be reduced.

The invention relates to the technical field of lithium batteries, and provides a lithium ion secondary battery, which comprises a pole piece and an electrolyte, the pole piece comprises a current collector and a tab, the tab is electrically connected with the current collector, and the tab protrudes from one side of the current collector in the width direction; the sectional area of the tab is marked as A mm < 2 >; the electrolyte comprises a carboxylic ester solvent; based on the total mass of the electrolyte, the mass ratio of the carboxylic ester solvent is marked as B%; a and B satisfy A * B > = 1. According to the lithium ion secondary battery provided by the invention, the temperature rise of the battery can be reduced, the safety performance of the battery is improved, the battery fire caused by too high temperature in the charging process of the battery is prevented, and the high-temperature storage performance and cycle performance of the battery are improved.

The utility model relates to the technical field of battery energy, in particular to a battery cell and a battery. The battery cell comprises a battery cell body and at least three tab assemblies, the tab assembly is positioned at the end part of the battery cell body, comprises a plurality of tabs which are arranged in a stacked manner, and is provided with an overcurrent area; the size of the tab in the length direction of the pole piece is less than or equal to 45mm; the total area S of the overcurrent areas of all the tab assemblies meets the condition that S is greater than or equal to I / (K * F); wherein I is the maximum current threshold value allowed to pass through in the overcurrent region, K is the current-carrying capacity per unit area in the overcurrent region, and F is a correction coefficient; k is greater than or equal to 5A / mm < 2 > and less than or equal to 10A / mm < 2 >, I is greater than or equal to twice of the standard capacity of the battery, and the value range of F is 0.5-0.9. According to the battery cell provided by the invention, the tabs are not easy to fold, and after the battery cell is arranged in the battery, the over-current capability of the battery can be met, and the temperature rise of the battery in the charging and discharging process is reduced.

The invention relates to the technical field of vertical furnaces, in particular to a wafer loading and unloading chamber and a vertical furnace, which comprise a wafer boat, a filter, a heat exchanger, a return pipe, a fan and a heat energy absorption part, and in the process that the wafer descends into the wafer loading and unloading chamber along with the wafer boat, the low-temperature nitrogen flows out from the nitrogen outflow hole of the filter and flows to the wafer boat and the wafer. And carrying out cooling treatment on the wafer boat and the wafer by means of low-temperature nitrogen. And then the high-temperature nitrogen flows into the heat exchanger through the nitrogen recovery hole for cooling treatment. And the cooled nitrogen flows to the filter again through the return pipe under the action of the fan to be reused. By additionally arranging the heat energy absorption part, the heat energy absorption part can quickly absorb heat energy from the wafer boat, the wafer and the environment in the wafer loading and unloading chamber, so that the cooling rate of the wafer boat and the wafer is improved, the rising amplitude of the environment temperature in the wafer loading and unloading chamber is reduced, and the service life of other equipment in the wafer loading and unloading chamber is prolonged; and potential safety hazards are reduced.

The invention relates to the technical field of automobiles and industrial electronics, in particular to a power device embedded circuit board integrated with a ceramic plate and a preparation method of the power device embedded circuit board, and the power device embedded circuit board comprises the ceramic plate, a power device, a conductor layer, an insulating layer, a metal conduction blind hole, a bottom copper plating layer, an assembly welding layer and a blind groove. Compared with a traditional power module, the switching speed is higher, the switching loss is smaller, and the design is more flexible; compared with a power device embedded circuit board in the market, the circuit board has the advantages of lower thermal resistance, lower temperature rise and higher current output capability. The advantages of a traditional power module and an embedded circuit board are integrated, switching loss is small, thermal resistance is small, and the current output capacity can be greatly improved.

The invention discloses an internal-cooling-based high-frequency coupling window for a high-power cyclotron. The internal-cooling-based high-frequency coupling window is characterized in that an air knife structure is arranged at the atmosphere end of the internal-cooling-based high-frequency coupling window; two groups of conductor choke units with different lengths are arranged on two sides of a ceramic chip of the high-frequency coupling window based on internal cooling, and the two groups of conductor choke units with different lengths are equivalent to two groups of inductors and are used for forming a double-filter circuit of the high-frequency coupling window; a ceramic coating film is arranged on one side of the ceramic sheet of the high-frequency coupling window; according to the air knife structure, more heat on the surface of the ceramic chip is taken away through compressed air; on one hand, the filter unit and the conductor choke unit form a filter circuit of a high-frequency coupling window atmosphere end; according to the invention, the air knife structure is ingeniously utilized, and enhanced cooling is carried out on the ceramic wafer of the coupling window structure; the inductance value of the coupling window is adjusted by using the conductor choke unit, the standing-wave ratio coefficient of the coupling window is reduced, the surface temperature of the ceramic chip is reduced, and the risk of explosion of the coupling window is reduced.

The invention discloses a robot servo motor based on magnetic assistance characteristics, which comprises a stator core, a rotor core and magnetic steel, the stator core comprises laminated stator punching sheets and windings, the rotor core comprises multiple layers of laminated rotor punching sheets, spoke type magnetic steel grooves and multiple layers of air magnetic barriers are arranged on the rotor punching sheets, and the magnetic steel is arranged in the magnetic steel grooves; the multiple layers of air magnetic barriers comprise a plurality of arc-shaped magnetic barriers symmetrically arranged on the two sides of the magnetic steel grooves, the arc-shaped magnetic barriers comprise a first arc-shaped magnetic barrier, a second arc-shaped magnetic barrier, a third arc-shaped magnetic barrier and an interelectrode arc edge triangular large magnetic barrier, and a rotor excircle magnetic barrier is arranged at the top of each spoke type magnetic steel groove on the rotor punching sheet. The motor has the advantages that the anti-demagnetization performance and the torque output stability of the motor can be improved while the heat dissipation area of the motor is not changed and the cost of the motor is not additionally increased.

According to the reinforced heat dissipation structure of the epoxy pouring dry-type transformer and the manufacturing process of the reinforced heat dissipation structure, the reinforced heat dissipation structure of the epoxy pouring dry-type transformer comprises an iron core, a winding, a base and a heat dissipation device; the winding comprises a low-voltage winding and a high-voltage winding, the low-voltage winding sleeves the outer side of a core column of the iron core, the high-voltage winding sleeves the outer side of the low-voltage winding, and a main channel is reserved between the high-voltage winding and the low-voltage winding; and the heat dissipation element is arranged in a main channel formed by the high-voltage winding and the low-voltage winding. The high-voltage side heat conduction layer is connected with the inner wall of the high-voltage winding, the low-voltage side heat conduction layer is connected with the outer wall of the low-voltage winding, the heat conduction efficiency is improved, meanwhile, the heat dissipation element is installed in the main channel, and the heat dissipation capacity of the main channel is enhanced. In addition, the heat dissipation device and the winding are integrally formed in a casting mode, the heat dissipation capacity of the main channel is enhanced, heat resistance among all components is effectively reduced, and therefore the overall heat conduction efficiency is improved.

The invention discloses a relay which comprises a contact assembly and an arc extinguishing assembly. The contact assembly comprises two contact parts, one contact part is provided with a first static contact and a first leading-out piece, the first static contact is arranged on the first leading-out piece, and the other contact part is provided with a first movable contact used for making contact with or being separated from the first static contact. The arc extinguishing assembly comprises a magnetic conductive piece and a permanent magnet, the magnetic conductive piece is connected with the first leading-out piece, and the permanent magnet is arranged on the side, facing the first movable contact and the first static contact, of the magnetic conductive piece, located around the first movable contact and the first static contact and used for extinguishing electric arcs generated between the first movable contact and the first static contact.

The invention aims to provide a reinforcement learning-based dynamic connection optimization method for high-frequency wire harnesses of new energy equipment, and relates to the technical field of new energy, and the method comprises the steps: 1, collecting the operation data of each battery module of the new energy equipment, and building a state vector in combination with the high-frequency wire harness characteristic data of each high-frequency wire harness in the new energy equipment; 2, calculating a predicted temperature distribution vector based on the state vector and the temperature distribution vector; based on the state vector, the high-frequency wire harness stress and the predicted temperature distribution vector, constructing a state space and an action space of a reinforcement learning model; 3, defining a reward function of the reinforcement learning model; and completing dynamic connection optimization of the high-frequency wire harness in an iterative optimization mode. According to the invention, the stability, the energy efficiency and the safety of the system are obviously improved, and the service life of the high-frequency wire harness and the connection point is effectively prolonged.

The utility model discloses an air-cooled silent low-temperature-rise combustion device which comprises a vertically-through barrel and a heat exchanger arranged above the barrel. The cylinder is formed by assembling two long cylinder wall assemblies and two short cylinder wall assemblies, and a combustion chamber is defined by the long cylinder wall assemblies and the short cylinder wall assemblies. The long cylinder wall assembly comprises a first sound insulation air supply cavity. The short cylinder wall assembly comprises a second sound insulation air supply cavity; concave riveting sinking tables which sink towards inner cavities of the sound insulation air supply cavities are arranged on the two sides of the first sound insulation air supply cavity and the two sides of the second sound insulation air supply cavity and used for allowing rivets to penetrate through. According to the utility model, a coil pipe is not required to be arranged outside the combustion chamber for preheating, so that the use amount of copper pipes can be effectively reduced, and the production cost is reduced. Moreover, the sunken riveting platform in the sound insulation air supply cavity can facilitate riveting connection of the inner shell plate and the outer shell plate, and meanwhile, a turbulent flow blocking structure can be formed in the sound insulation air supply cavity, so that air flow forms turbulent flow in the sound insulation air supply cavity, the shell wall can be better contacted, heat of the cylinder body can be taken away, and temperature rise is reduced.

A circuit breaker provided by the present invention comprises a main loop and an arc-extinguishing conductive loop which are arranged in parallel, the main loop is provided with a moving contact and a static contact, the arc-extinguishing conductive loop is provided with a photoresistor, and when the moving contact and the static contact are broken due to a fault current to generate an electric arc, the resistance value of the photoresistor is reduced under the arc light effect of the electric arc. The arc-extinguishing conductive loop is in a conducting state, so that a fault current mainly passes through the arc-extinguishing conductive loop, namely the arc-extinguishing conductive loop plays a role in shunting, and the fault current flowing through the main loop is reduced, so that the arc ablation of the moving contact and the static contact is reduced, the energy of the arc is weakened, and the contact is not easy to have the conditions of fusion welding and ablation; when the moving contact and the static contact are completely disconnected, the electric arc is extinguished, the resistance value of the photoresistor is increased, and the arc-extinguishing conductive loop is in an open-circuit state, so that fault current is effectively cut off, the moving contact and the static contact are protected, and the service life of the circuit breaker is prolonged.

The invention relates to the technical field of computer electronic products, in particular to an immersed liquid cooling heat exchange device and method.The immersed liquid cooling heat exchange device comprises a complete machine assembly, a pressure gauge is arranged on the upper portion of the complete machine assembly, a vacuum pump is arranged at the position adjacent to the pressure gauge, and an air compressor is arranged at the position adjacent to the vacuum pump. Compared with the prior art, a preset temperature and pressure relative database can be formed through a temperature detection feedback mechanism and a software presetting function, interaction of the air compressor and the vacuum pump is adjusted, and adaptation of the pressure and the temperature in the case is achieved.

The utility model discloses an aluminum profile machining and forming device with a cooling mechanism, which relates to the field of profile machining and comprises a workbench and an aluminum profile forming device body fixedly connected with the top end of the workbench, and a feeding port is arranged in the middle of the top end of the aluminum profile forming device body. The bottom end of the feeding port extends into the aluminum profile forming device body, mounting plates are fixedly connected to the two ends of the top end of the workbench correspondingly, and cooling mechanisms used for cooling the aluminum profile forming device body are arranged at the positions, at one ends of the mounting plates, of the two ends of the aluminum profile forming device body correspondingly. According to the aluminum profile machining and forming device with the cooling mechanism, aluminum profiles can be better cooled and formed through the cooling mechanism, the machining efficiency is guaranteed, cooling liquid is conveyed into the cooling pipe through a water pump, and therefore the outer side of the aluminum profile forming device body is cooled; and the condition of temperature rise caused by aluminum profile machining is reduced, and cooling forming of the aluminum profile is effectively assisted.

The invention discloses an electrolyte and a lithium battery, which are used for solving the technical problems that the charging temperature is increased, the side reaction of a system is increased, the lithium precipitation risk of a negative electrode is increased and the cycle performance is deteriorated when the charging rate of the existing lithium battery is improved. The electrolyte comprises a lithium salt, a solvent and an additive, the solvent comprises fluorocarboxylic ester, and the additive comprises an additive A. In the design, by adding the additive A into the electrolyte, when oxygen atoms in the substance structure are formed, an electron can be obtained, a five-membered ring is broken, and a sulfite product is further obtained through reaction, so that the interface film-forming impedance can be effectively reduced, and the risk of temperature rise and lithium precipitation can be reduced; meanwhile, the fluorocarboxylic ester in the solvent is matched, so that the dynamic stability and the thermal stability can be considered, the fast charging performance, the high-temperature circulation performance and the storage performance of the lithium battery are considered, and in addition, the safety performance of the lithium battery can also be improved.

The invention provides a high-capacity generator circuit breaker heat dissipation structure based on liquid metal heat dissipation and a working method, and the structure comprises a vacuum arc-extinguishing chamber heat dissipation device, a liquid metal diversion pipeline, and a liquid metal cooling circulation system. The vacuum arc-extinguishing chamber heat dissipation devices are arranged on the two sides of the vacuum arc-extinguishing chamber; the end part of the liquid metal flow guide pipeline is communicated with a liquid metal cooling circulation system; the vacuum arc-extinguishing chamber heat dissipation device is internally provided with heat dissipation fins; and the liquid metal flow guide pipeline is embedded in the radiating fins. The overall heat dissipation capability of the circuit breaker is improved by introducing the liquid metal, the heat dissipation structure of the vacuum arc-extinguishing chamber timely exports heat generated by the vacuum arc-extinguishing chamber, the heat is finally exported to the outside of the circuit breaker through circular flow of the liquid metal, the steady-state temperature rise during operation of the circuit breaker can be effectively reduced, and the service life of the circuit breaker is prolonged. The method is of great significance in improving the capacity of the generator circuit breaker and ensuring safe and reliable operation of the circuit breaker.

The current collector comprises a foil and a conductive layer, the conductive layer and the foil are stacked, the conductive layer comprises a first area and a second area, the first area is closer to the edge of the foil than the second area, the conductivity of the first area in the first direction is A, the conductivity of the second area in the first direction is B, and A is smaller than B. By arranging the foil and the conductive layer, the conductivity A of the first region and the conductivity B of the second region meet the condition that A is less than B, the conductivity of the edge of the current collector can be inhibited, and the current of the current collector can be reduced, so that the temperature rise of the edge region is reduced, the temperature difference between the edge of the current collector and the middle of the current collector can be reduced, lithium precipitation is reduced, and the service life of the battery cell is prolonged.

The invention relates to an application window display method and device, electronic equipment and a storage medium. The method comprises the steps that operation instructions for multiple application windows displayed by the electronic equipment are detected; determining a target application window according to the operation instruction; and reducing the refresh rate of the application windows except the target application window in the plurality of application windows. Through the scheme, the display effect of the target application window with relatively high user attention can be considered on the basis of reducing the power consumption of the electronic equipment.

The invention relates to the technical field of steel rolling, and discloses a novel gear box type wear-resistant disc side guide plate before hot rolling and coiling, which comprises a roller bed supporting beam, a hydraulic push rod is assembled on the side wall of the roller bed supporting beam, a guide plate beam is fixedly connected to the output end of the hydraulic push rod, a disc taper shank is assembled in the guide plate beam, and the disc taper shank is fixedly connected to the output end of the hydraulic push rod. A disc lining plate is connected to the outer portion of the disc taper shank in an interference fit mode, the disc taper shank is sleeved with a gear shaft, the interior of the gear shaft is in threaded connection with a screw rod, and the screw rod penetrates through a center hole of the gear shaft and extends into the disc taper shank. According to the novel gearbox type wear-resistant disc side guide plate before hot rolling and coiling, an integrated rotating body is combined through the pre-tightening force of the bolts, so that only one nut is needed for disassembling and assembling the disc; the rotation axis of the disc is ensured to be highly overlapped with the axis of the gear shaft by utilizing the Morse taper, so that the bending moment resistance and the radial impact load bearing capacity of the disc are greatly improved.

The invention belongs to the technical field of medicines, discloses keratin CF5 as well as a preparation method, a pharmaceutical composition and application thereof, and particularly relates to keratin CF5, a nucleic acid molecule for coding the keratin CF5, an expression vector containing the nucleic acid molecule, a host cell containing the expression vector or genome integrated with the nucleic acid molecule, and a preparation method of the keratin CF5. The invention relates to a keratin CF5-containing pharmaceutical composition and application of the keratin CF5, nucleic acid molecules, expression vectors, host cells or the pharmaceutical composition in preparation of antipyretic and analgesic, cough-relieving and phlegm-eliminating drugs, anticonvulsion, antiepilepsy, blood pressure lowering drugs, anti-inflammatory drugs and antiviral drugs, in particular to application of the keratin CF5, the nucleic acid molecules, the expression vectors, the host cells or the pharmaceutical composition in preparation of antipyretic and analgesic drugs.

The utility model discloses a sealed low-voltage unit heat radiation structure of a box-type transformer station, which is applied to a windy and dusty environment or a coastal humid environment, and comprises a low-voltage unit closed shell, a low-voltage cabinet I, a low-voltage cabinet II, a heat exchanger and a middle busbar channel, and the low-voltage cabinet I and the low-voltage cabinet II are respectively arranged on two sides of an inner cavity of the low-voltage unit closed shell. The low-voltage cabinet I and the low-voltage cabinet II are oppositely arranged, each of the low-voltage cabinet I and the low-voltage cabinet II comprises a lower half cavity and an upper half cavity, a middle busbar channel is arranged at the upper part between the two low-voltage cabinet bodies, and a wind baffle plate is arranged in the low-voltage cabinet, so that airflow passes through heating elements such as a low-voltage main busbar and a low-voltage circuit breaker according to a guide path air duct; the arrangement of the guide air duct in the cabinet improves the circulation and replacement efficiency of airflow, and cooperates with the heat exchanger to perform indoor and outdoor heat exchange, so that efficient and energy-saving operation of the low-voltage unit is realized, meanwhile, indoor air is isolated from outdoor air, the influence of dust and salt mist brought by internal and external ventilation is avoided, and the product operation is safer and more reliable.

The invention discloses a composite rotor cooling mechanism of a permanent magnet synchronous traction motor. A rotor core of the mechanism is provided with a skewed pole structure and is provided with a magnetic isolation groove, permanent magnets are uniformly arranged on the peripheral surface of the rotor core at intervals along the circumferential direction, a sheath is sleeved on the permanent magnets and the rotor core and is provided with a magnetic isolation groove, and wind thorns are arranged on the end surface of the air inlet side of the composite rotor cooling mechanism and are positioned at the magnetic isolation groove. In a limited cooling space, the magnetic isolation grooves parallel to the skewed poles are arranged, and the wind thorns are additionally arranged on the air inlet sides of the magnetic isolation grooves, so that the convective heat transfer coefficient in the magnetic isolation grooves is improved, the effect of cooling the motor is better achieved, the loss of the motor is reduced through the skewed poles of the rotor and the magnetic isolation grooves, and the temperature rise of the motor is reduced from the source. The magnetic isolation grooves, the skewed poles and the inner hole are used in a matched mode, starting from the two aspects of reducing loss and improving the heat dissipation coefficient, compared with a single cooling structure, the cooling mechanism has a better effect on reducing temperature rise, and the cooling mechanism can be applied to a more complex motor.

The invention discloses a concentric unequal-turn full-slot low-harmonic winding stator, which comprises a stator core and a winding, and is characterized in that the stator core comprises a plurality of phase belts, and each phase belt comprises three stator slots; the windings wound in the three stator slots in one phase belt are wound in a single-double-layer unequal-turn manner, and are periodically distributed on the whole stator core in a surrounding manner by taking one phase belt as a period; the three stator slots in one phase belt comprise two first slot bodies and a second slot body, the second slot body is located between the two first slot bodies, and the slot sizes of the first slot bodies and the second slot body are matched with the single-layer and double-layer unequal-turn winding windings to form a matching structure with high full slot rate. The concentric single-layer and double-layer unequal-turn windings and the stator slots matched with the windings are adopted, so that the magnetic circuit distribution is more uniform while the harmonic amplitude is reduced, the static flux density distribution of the stator is greatly improved, and the motor performance is further improved.

The invention discloses a stator assembly, a motor and power equipment, and the stator assembly comprises a stator yoke part which is internally provided with an accommodation cavity, and the inner wall of the accommodation cavity is provided with a first connection part; a second connecting part is formed on the periphery of the stator tooth part, and the second connecting part is suitable for being matched with the first connecting part so that the stator tooth part and the stator yoke part can be connected and contained in the containing cavity; wherein the stator tooth part is made of oriented silicon steel. According to the stator assembly, the stator yoke part and the stator tooth part are arranged, the stator yoke part and the stator tooth part can be connected through cooperation of the first connecting part and the second connecting part after being manufactured and formed respectively, the stator tooth part is made of oriented silicon steel, and therefore the purposes of reducing motor loss and improving motor reliability are achieved. And the motor efficiency is improved and the motor performance is optimized.

The invention relates to the technical field of motors, and discloses an axial motor cooling structure and an axial motor, and the axial motor cooling structure comprises a support which is composed of a cylinder, a first supporting rod and a second supporting rod; the cylinder and two adjacent groups of first support rods and second support rods support and fix the stator winding; a first flow channel is formed among a group of first supporting rods, a group of second supporting rods, two adjacent stator windings and the outside of the cylinder; a second flow channel for communicating two adjacent first flow channels is arranged in the cylinder; a third flow channel is arranged in the machine shell, and the third flow channel communicates with the two adjacent first flow channels. Coolant flows in the first flow channel, the second flow channel and the third flow channel. The stator winding is supported and fixed through the support, the first flow channel is arranged between the support and the stator winding, heat generated by the stator winding is directly conducted out through the coolant when the axial motor operates, the purpose of efficient heat exchange is achieved, the temperature of the axial motor is lowered as soon as possible, stable and reliable operation of the axial motor is guaranteed, and the service life of the axial motor is prolonged. And the purpose of bracket reuse is achieved.