20results about How to "Optimize heat dissipation structure" patented technology

The invention discloses an axial flux motor electromagnetic optimization method and device based on an equivalent magnetic network, and relates to the technical field of axial flux motors. The method comprises the following steps: acquiring parameters of a fixed part and a rotating part of a motor, and establishing a three-dimensional geometric model of the motor; operating data and mechanical parameters of the motor are collected and imported into the three-dimensional geometric model, and a three-dimensional model of the motor is obtained; establishing an air domain on the outer side of the radial boundary of the three-dimensional model, and setting conductivity, magnetic conductivity, a speed inlet, a pressure outlet and a wall surface for the air domain; performing grid division on the three-dimensional model and the air domain by using a grid division tool to obtain a grid model of the motor; and establishing an equivalent magnetic circuit for the grid model, collecting and changing preset values of the operation data and the mechanical parameters at a preset frequency, and calculating magnetomotive force and magnetic resistance of each grid so as to determine the optimal configuration. According to the invention, the equivalent magnetic circuit is established, the operation data and the mechanical parameters are collected, the three-dimensional model is established, and the magnetic field distribution of the motor is simulated more accurately.

The invention relates to the technical field of mechanical transmission and mechatronics, in particular to an integrated linear servo joint thermal magnetic multi-physics coupling design method based on Ansys Workbench, which comprises the following steps: establishing a three-dimensional model of a reverse planetary roller screw; constructing an electromagnetic model of the motor, and performing electromagnetic simulation; internal heat and convective heat transfer coefficients corresponding to the motor are obtained; the heat flow, the heat flux and the convective heat transfer coefficient corresponding to the reverse planetary roller screw are obtained; and constructing a thermal magnetic coupling model, and performing simulation solution. According to the method, the heat, force and magnetic multi-physical field coupling effect is comprehensively considered in the integrated linear servo joint, and the problem that the overall performance of the whole joint is reduced due to the fact that the temperature is too high due to improper design is effectively solved.

The utility model discloses an anti-wear structure of a water pump impeller, which comprises an impeller magnet, an impeller, an impeller middle frame, an impeller magnet shaft and an anti-wear sheath, the impeller magnet and the impeller magnet shaft are integrated through injection molding, the impeller magnet and the impeller are connected through the impeller magnet shaft, and the impeller middle frame is arranged between the impeller magnet and the impeller. The shaft sleeve which is directly formed through injection molding is arranged in the center of the impeller middle frame, namely, the center hole, the anti-abrasion protection sleeve is placed in the shaft sleeve of the impeller middle frame, and the anti-abrasion protection sleeve is made of high-performance graphite, has the advantages of being high in hardness, good in abrasion resistance, good in impact resistance and resistant to corrosion and can effectively protect a bearing, the impeller and the like. Through the effective anti-abrasion structure, the water pump impeller is effectively prevented from being abraded, the service life is prolonged, and high lift and use efficiency of the water pump are maintained.

The invention relates to the technical field of orchard frost prevention equipment, and discloses a self-propelled orchard frost prevention device which comprises a control system, a power supply device, a chassis and a heat source box which are connected with one another. The chassis comprises a Beidou navigation crawler-type driving chassis and a temperature monitoring and early warning device arranged on the Beidou navigation crawler-type driving chassis, and the temperature monitoring and early warning device is electrically connected with the control system; the heat source box is arranged on the chassis and comprises a protective cover, and a heat supply device and a wind power disturbance device which are arranged in the protective cover; the heat supply device comprises a furnace body arranged in a protective cover, a thermal insulation material with the thickness of 3cm is arranged on the protective cover, a diesel combustion engine is arranged in the furnace body, an automatic ignition starting device and a constant-temperature power-off device are arranged on the diesel combustion engine, and the automatic ignition starting device is electrically connected with the control system; and when the set temperature threshold value is reached, the burner stops burning. Hot air pipes are arranged on the side wall of the furnace body. The device provides an efficient, intelligent and accurate anti-frost solution for the orchard.

The utility model relates to the technical field of wireless network cards, and discloses an anti-signal interference wireless network card, which comprises an outer shell and an internal assembly, the internal assembly is arranged in the outer shell, the left side and the right side of the bottom end of the outer shell are respectively provided with an air inlet, and an air outlet is formed in the left side and the right side of the bottom end of the outer shell. The bottom end of the outer shell is in butt joint with a filtering assembly matched with the air inlets in the two sides for air inflow, heat dissipation assemblies are arranged on the front shell wall and the rear shell wall in the outer shell, a heat dissipation fan is installed at the position, close to the top end, of the outer shell, and a shielding layer is embedded in the inner side shell wall of the outer shell. The anti-signal-interference wireless network card has a good heat dissipation structure, can ensure efficient operation of internal components, and adopts effective anti-interference measures to ensure stable transmission of signals. The wireless network card with the design can provide high-performance and reliable wireless connection, meanwhile, the capability of resisting signal interference is ensured, and the requirements of a user for signal quality and stability are met.

The invention discloses an intelligent control method and system for the oil temperature of a drive axle lubricating system. The method comprises the steps that the target range T0 of the oil temperature of drive axle lubricating oil is set to be larger than or equal to 20 + / -2 DEG C and smaller than or equal to 100 + / -2 DEG C; detecting the temperature of each test point of the thermal management system, wherein the test points comprise a lubricating oil temperature T1 and a cooling liquid temperature T2; detecting the running state of the vehicle, and when an engine is ignited and the rotating speed of the vehicle is greater than 0m / s, activating a drive axle oil temperature intelligent control system; s4, under the condition that the drive axle oil temperature intelligent control system is activated, the following oil temperature control steps are executed: a) when T1 is smaller than 20 + / -2 DEG C, low-temperature control is executed; b) when T1 is greater than or equal to 100 + / -2 DEG C, executing high-temperature control; c) when the vehicle speed is less than or equal to 30km / h, executing low-speed working condition control; and d) when T2 is larger than T1, cooling liquid high-temperature control is executed. The problems that the drive axle assembly fails in advance, the torque transmission efficiency is reduced, and the oil temperature is low when a vehicle continues to be at a low speed are solved.

The invention discloses a sealed heat dissipation structure and a motor controller, the sealed heat dissipation structure comprises an aluminum-based PCB, a main control board and a shell, the edge of the main control board is arranged on the inner side wall of the shell in an embedded manner, the shell and the aluminum-based PCB are connected and fixed through a buckle, and the shell and the aluminum-based PCB are in sealed connection; and the aluminum-based PCB adopts a thick aluminum substrate. According to the technical scheme, through the innovative design of the sealing heat dissipation structure, the heat dissipation performance is improved, the assembly process is simplified, the cost is reduced, the waterproof sealing performance is enhanced, and the overall competitiveness of the product is improved. Through the technical effects, the controller has wide application prospect and market value in the field of motor control.

The invention discloses an Ansys thermosetting coupling analysis method for a brake disc based on Spaceclaim, relates to the technical field of brake disc thermosetting coupling simulation, and aims at solving the problems that an existing racing car brake disc thermosetting coupling analysis method is complex in working condition, large in calculation amount and not easy to operate. The method is technically characterized by comprising the steps that firstly, a brake disc and friction plate model is established and imported into finite element analysis software Ansys, materials are selected for the brake disc and the friction plate, material attributes are input, and the step number and time are set; 2, boundary conditions are applied, force generated by braking is regarded as a linear process, and braking force is applied; step 3, repairing the distorted grid; 4, defining a contact surface as friction, a formula as a generalized Lagrangian method, updating rigidity as each iteration, and the rest as program control, setting a connection mode as geometry-ground, and a type as revolution; and 5, temperature distribution and deformation quantity are obtained through thermosetting coupling analysis.

The invention provides a manufacturing method of a PCB embedded with a chip and the PCB, and belongs to the technical field of circuit board production. The manufacturing method comprises the following steps: manufacturing a power module; the power module comprises a heat conduction module and a chip, a mounting groove is formed in the heat conduction module, and the chip is sintered in the mounting groove; obtaining a substrate of the PCB, and embedding the power module into the substrate; conducting holes are formed in the substrate where the power module is embedded, the conducting holes are formed in the two opposite sides of the power module, and the conducting holes are connected with the chip and the heat conduction module respectively; and electroplating the via hole to obtain the PCB embedded with the power module. The PCB manufactured through the method is high in heat dissipation capacity, the installation requirement of high-power components can be met, and long-term, efficient and stable operation of products is guaranteed.

The utility model discloses a high -efficient heat dissipation's nine hole COB integrated plant lamp shell, including protection bottom plate, fixed frame and top cap, the position department of top cap inboard corresponds LED lamp pearl and all is provided with inner cover body, and the outer side of inner cover body all is provided with outer cover body, the airflow channel is formed between outer cover body and inner cover body, and the both ends of airflow channel all are provided with air port, the both ends of fixed frame all are provided with ventilation, and the position department of two ventilation inboard corresponds air port and installs respectively outgoing fan and air inlet fan. The utility model discloses the airflow channel formed between the inner cover body and outer cover body of top cap inboard setting and the air port design of airflow channel both ends, ensure that the air flow is smooth, and further improve the heat dissipation effect. The ventilation of fixed frame both ends setting, cooperate the use of outgoing fan and air inlet fan, form effective forced convection heat dissipation system, make internal heat can discharge rapidly, keep LED lamp pearl in suitable working temperature.

The application discloses an information processing device, which comprises a body, a display screen rotatably connected to the body, the body comprises an upper shell and a lower shell connected below the upper shell, one or more heat dissipation air outlets are formed between the upper shell and the lower shell, a movable shell is installed on the heat dissipation air outlet, a driving unit is arranged in the body, when the display screen is rotated to open, the driving unit drives the movable shell to open to expose the heat dissipation air outlet, when the display screen is rotated to close, the driving unit drives the movable shell to close to close the heat dissipation air outlet. Due to the above technical means, the application improves the heat dissipation structure of the notebook computer, the air outlet which can be opened and closed is arranged on the body, when the notebook computer is opened and used, the air outlet is opened to expand the heat dissipation space, so that the heat generated during the use of the notebook computer can be timely output.

The utility model relates to the technical field of light source equipment, in particular to a double-U-hole three-dimensional light source with a heat dissipation structure, the light source is composed of a shell base, an LED light source array, a circuit board and a scattering cover, double U-shaped holes are formed in the shell base, and the scattering cover is arranged on a containing cavity in a covering mode to form a light-emitting face. The heat dissipation assembly comprises an aluminum substrate, a heat dissipation glue coating, heat dissipation holes and a heat dissipation fan, the aluminum substrate is arranged in the shell base, the heat dissipation glue coating is arranged between the aluminum substrate and the shell base, the heat dissipation holes are communicated with the outside and the containing cavity, and the heat dissipation fan is arranged in the containing cavity. Through the special structure of the double U-shaped holes and the scattering cover, the light source can provide uniform illumination; due to the design of curvature recesses and side edge recesses of the light-emitting surface, the light uniformity and the stray light suppression effect are optimized. The heat dissipation assembly optimizes the heat dissipation structure and prolongs the service life of the light source; meanwhile, the light source control panel is integrated in the light source, connecting lines between the light source and the light source controller are reduced, cost is reduced, and economic benefits are improved.

The utility model discloses a bus duct convenient for heat dissipation and fire prevention, comprising a bus duct, two ends of the bus duct are respectively provided with a joint; a first internal partition plate, a second internal partition plate, a third internal partition plate and cooling fins are arranged in the bus duct; by arranging the first internal partition plate and the second internal partition plate, it is ensured that the conductive plate installation cavity used for installing the conductive sheets is located in the center of the interior of the bus duct, then the conductive plate installation cavity is wrapped, then the fireproof effect of the bus duct is enhanced after fireproof cotton is stuffed around the conductive plate installation cavity, and the safety performance is good; and by arranging a third internal partition plate, the interior of the bus duct is independently partitioned to form a heat dissipation chamber, so that the utilization rate of the internal space is improved, and the heat dissipation effect of the bus duct is further ensured.

The invention discloses a modular high-efficiency heat dissipation uniform field laser light source system, comprising a blue laser light source Ⅰ1, a scattering plate Ⅰ2, an anti-blue and yellow beam combiner 3, an anti-red and blue-green beam combiner 4, a lens group Ⅰ5, a fluorescent unit 6, an RGB laser light source 7, a vibration scattering plate 8, a lens Ⅰ9, a lens group Ⅱ10, and a light pipe 11; a light beam emitted by the blue laser light source Ⅰ1 passes through the scattering plate Ⅰ2 and then enters the anti-blue and yellow beam combiner 3, and then enters the fluorescent unit 6 through the lens group Ⅰ5; a light beam generated after the fluorescent unit 6 is excited passes through the lens group Ⅰ5, the anti-blue and yellow beam combiner 3, the anti-red and blue-green beam combiner 4 and the lens group Ⅱ10 in sequence and enters the light pipe 11. The modular high-efficiency heat dissipation uniform field laser light source system can effectively dissipate the heat generated by the laser and obtain uniform picture projection output at the same time, and has good practical application value.

The vehicle lamp assembly comprises a shell, a lampshade and a light guide plate, an opening is formed in the shell, a containing space is formed in the shell, the lampshade covers at least part of the opening, a peripheral wall connected with the shell is formed on the lampshade, and the light guide plate is arranged in the containing space. The lampshade is further provided with a light-emitting wall connected with the peripheral wall and directly facing at least part of the opening, the included angle between the peripheral wall and the light-emitting wall is alpha which is larger than 0 degree, the light guide plate is contained in the containing space, at least part of the light guide plate is bent to be attached to the peripheral wall and the light-emitting wall to extend, and a light-emitting part is arranged on part of the edge of the light guide plate. The space utilization rate of the automobile lamp assembly can be improved.

The utility model discloses an automobile high beam and low beam daytime running light module convenient for heat dissipation, which relates to the technical field of automobile lighting and comprises an outer box, a lampshade is arranged on one side of the outer box, a light groove is formed in one side end, adjacent to the lampshade, of the outer box, a high beam and low beam is arranged in the light groove in a penetrating manner, and a heat dissipation component and a convection component are arranged in the outer box; the convection assembly comprises a plurality of air inlet pipes, and the air inlet pipes are arranged on one side of the upper surface of the outer box in an array mode. The heat dissipation assembly and the convection assembly are arranged, the heat dissipation structure of the outer box is improved mainly through the layered shell, the fin angle and the air duct layout, the cost is low, the heat dissipation effect is considerable, the heat dissipation effect of the device is improved while the cost is controlled, and the practicability of the device is effectively improved.

A light-emitting device and a display device, the light-emitting device comprising: a first LED stack; a second LED stack, arranged below the first LED stack; a third LED stack, arranged below the second LED stack; and an electrode pad, electrically connected to the first LED stack, the second LED stack and the third LED stack, the electrode pad comprising: a common electrode pad, electrically connected to the first LED stack, the second LED stack and the third LED stack; and a first electrode pad, a second electrode pad and a third electrode pad, respectively connected to the first LED stack, the second LED stack and the third LED stack, the first LED stack, the second LED stack and the third LED stack are independently drivable, light generated in the first LED stack is emitted to the outside through the second LED stack and the third LED stack, and light generated in the second LED stack is emitted to the outside through the third LED stack.

The invention belongs to a heat dissipation structure of a high-power transformer in the technical field of high-power transformers. Comprising a left side plate (5), a right side plate (6) and a primary winding (3), the primary winding (3) is of a hollow structure, the primary winding (3) is of a structure made of metal materials, the left side plate (5) is connected with a liquid inlet pipe (9) through an insulating support (7), the liquid inlet pipe (9) is communicated with a water inlet of the primary winding (3), the right side plate (6) is connected with a liquid outlet pipe (10) through the insulating support (7), and the liquid outlet pipe (10) is communicated with a water outlet of the primary winding (3). The heat dissipation structure of the high-power transformer is simple in structure, liquid cooling of the primary winding is achieved on the premise that the size is not additionally increased, so that heat generated by iron loss and copper loss when the transformer works is better taken away, it is ensured that the working temperature of the transformer is maintained within a controllable temperature interval, equipment safety is guaranteed, and the service life is prolonged.

The invention discloses a cooling structure of an axial flux motor. The axial flux motor comprises a shell, a rotor assembly and a stator assembly. The rotor assembly comprises a rotor shaft and two magnetic steel brackets which are coaxially sleeved on the rotor shaft and are tightly attached to each other; the rotor shaft is provided with an axial cooling flow channel, and the interior of the two magnetic steel supports is provided with a rotor heat dissipation device. The rotor heat dissipation device comprises a heat dissipation medium channel, a heat dissipation medium channel sealing structure and a cooling channel which is communicated with the heat dissipation medium channel and the axial cooling flow channel on the rotor shaft. The stator assembly comprises an annular winding group and a plurality of stator teeth inserted into the annular winding group, each stator tooth is provided with a stator heat dissipation device, and the stator heat dissipation device comprises a heat dissipation pipe attached to the surface of the stator tooth. The axial magnetic flux motor is simple in structure, the heat dissipation flow channels and the corresponding sealing structures are arranged on the rotor structure, machining is easy, and heat dissipation of the interior of the axial magnetic flux motor is facilitated; the stator structure is provided with a heat dissipation pipe, and heat of the coil and the stator tooth part is rapidly conducted.