5results about How to "Ensure cooling effect" patented technology

This invention provides a coreless stator with a high magnetic flux density and a thin working area, and an axial flux motor. The coreless stator includes a first winding unit and a second winding unit stacked axially. Several winding coils of the first and second winding units are fabricated on a conductive substrate using a subtractive process. Each winding coil includes a working area, a hollow slot, and bent outer and inner coil bridging areas. The first and second winding units are circumferentially misaligned during axial stacking, so that the working areas of the first and second winding units are circumferentially spaced and distributed in the same radial plane, forming the stator working section. The thickness of the stator working section does not exceed half the total thickness of the coreless stator. This application further thins the stator working section of the coreless stator, significantly reducing the effective working air gap length of the axial flux motor, significantly enhancing the air gap magnetic flux density, improving the motor's torque density and power density, and achieving synergistic optimization of performance and reliability.

This application provides a dual-band common-aperture phased array antenna structure and its integration method, which can be applied to the field of phased array technology. The method includes: an X-band radiating array comprising a plurality of first radiating element modules arranged along a first direction; an L-band radiating array comprising a plurality of second radiating element modules arranged along the first direction, wherein the second radiating element modules and the first radiating element modules are staggered along a second direction perpendicular to the first direction; an X-band T / R assembly disposed on the back side of the X-band radiating array; an interconnecting cable connecting the X-band radiating array and the X-band T / R assembly; and an L-band integrated module disposed between the X-band radiating array and the X-band T / R assembly. The interconnecting cable has a predetermined physical extension height, forming a receiving space between the X-band radiating array and the X-band T / R assembly, and the L-band integrated module is disposed within the receiving space.

This utility model provides a high wear-resistant grinding wheel, comprising a base with a mounting hole at its center and multiple positioning grooves around the mounting hole. A grinding body is located around the periphery of the base. The grinding body includes an inner skeleton with an abrasive layer fixed thereon, and a diamond particle layer on the edge surface of the abrasive layer. The inner skeleton includes two annular clamping plates with multiple reinforcing bars welded between them. One end of each reinforcing bar is welded to an alloy block, and the other end is connected to the base. Multiple anchor rods are provided on the clamping plates. Annular reinforcing plates are provided on both sides of the grinding body, fitted onto the base. Both the reinforcing plates and the grinding body have corresponding through holes. The reinforcing plates and the grinding body are fixed together by bolts and nuts corresponding to the through holes. The high wear-resistant grinding wheel provided by this utility model not only ensures the structural strength of the grinding wheel but also ensures its heat dissipation capacity and chip removal efficiency, thus ensuring its grinding performance.

This utility model relates to the field of electric motor technology and discloses a brushless DC motor with a fan-blade structure, including a rotor and a stator. A rotating shaft is fixedly connected to the shaft center of the housing. A magnet is connected to the inner side wall of the housing. Multiple cooling impellers are arranged in a circular array on one end side wall of the housing. A baffle is fixedly installed at one end of each cooling impeller. Multiple integrated positioning and heat dissipation holes are opened on one end side of the housing. One end of the rotating shaft is rotatably connected to a bracket via a bearing. Multiple heat dissipation holes are opened on the outer side of the bracket. A heat dissipation cavity is formed between the bracket and the housing. This utility model saves the height occupied by the motor by combining the housing and the cooling impellers, which is conducive to the miniaturization and thinning design of the product. The heat dissipation holes and the integrated positioning and heat dissipation holes form a convection heat dissipation channel. Cool air is drawn in from the cooling impeller end, flows through the heat-generating components inside the motor, and is discharged from the heat dissipation holes, thereby significantly improving the heat dissipation efficiency and ensuring the stable operation of the brushless DC motor.

The invention relates to the technical field of automobile exterior trimming part spraying and light-emitting trimming parts, and discloses a vehicle light-emitting grille outer plate preparation technology, a vehicle light-emitting grille system and a control method of the vehicle light-emitting grille system. According to the preparation technology, light-transmitting PP serves as a base material, and the requirements for efficient light transmission and modeling of the PP material are met through the five working procedures of carbon black primer spraying, 3D dynamic laser carving, two-time primer spraying, light-transmitting colored paint spraying and varnish curing. The light-emitting grating system comprises a grating outer plate, a PCB, a radiator, a shell and other structural assemblies which are manufactured through the technology. According to the control method, an instruction is transmitted through LIN communication, and after the instruction is analyzed by the MCU chip, the LED lamp set is driven to achieve 5%-100% brightness adjustment and complex animation effects such as running water, marquee and flicker. The problems that an existing light-emitting grating depends on a PC material, cost is high, and pedestrian protection laws and regulations are not met are solved, integration of the PP material light-emitting grating and the bumper is achieved, the science and technology feeling and luxury of a vehicle are improved, the structure is reliable, and adjustment is flexible.