10results about How to "Ensure cooling effect" patented technology

The utility model discloses a safety monitoring device for coal mine management, and relates to the technical field of coal mine management. The utility model comprises: a base plate; a transparent glass plate is fixedly mounted on one side of the protection frame, a camera body is fixedly mounted at the bottom of the inner wall of the protection frame, and a detachable wiping assembly is mounted on one side of the transparent glass plate; and the moving assembly is mounted on the protection frame. According to the utility model, through the cooperation of the protection frame, the detachable wiping assembly and the moving assembly, the problems that a large amount of dust is easy to attach to the safety monitoring device when the safety monitoring device is used in a mine for a long time and a lens of the monitoring device is blocked are solved, so that the safety monitoring device can be used in a coal mine environment with high pollution and high dust content; the definition of the monitoring camera is kept, and normal operation and heat dissipation of equipment are ensured, so that the efficiency and reliability of coal mine safety management are improved.

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.

According to the technical scheme, the electrical automation electromechanical control cabinet is characterized in that the electrical automation electromechanical control cabinet comprises a main box body, a water storage cavity with an upward opening is formed in the main box body, a storage cavity with an upward opening is formed in the main box body, a foam plate is fixedly arranged on the rear wall of the storage cavity, and a water level sensor is arranged in the water storage cavity and located on the lower side of the foam plate; the lower wall of the storage cavity is fixedly provided with two sets of pneumatic telescopic rods which can do telescopic motion and are in bilateral symmetry, the other ends of the pneumatic telescopic rods are fixedly provided with rain baffles and can cover the main box body, and the lower end faces of the pneumatic telescopic rods are fixedly provided with a supporting rack; two groups of feeding cavities which are opened forwards and are uniformly distributed up and down are arranged in the supporting rack, so that noise generated by the electrical equipment in a working state is prevented from being transmitted to the outside, nearby residents and surrounding workers are ensured not to be interfered, the comfort of the workers is effectively improved, and the working environment is beautified.

The utility model discloses a heat dissipation structure of a PLC, which comprises a shell and a PLC body, the inner wall of the shell is provided with the PLC body, the outer side of the shell is provided with a heat dissipation net, one side of the outer wall of the PLC body is provided with a heat conduction aluminum plate, the outer wall of the heat conduction aluminum plate is provided with a heat dissipation aluminum plate, and the other side of the inner wall of the shell is provided with a heat dissipation assembly. The heat dissipation assembly comprises a rotating rod, a mounting plate, a sliding rail, a heat dissipation fan, a fixing bolt, an adjusting lead screw and a connecting plate. Through cooperation of the heat dissipation assembly and the mounting block, the mounting block is taken down from the mounting hole by dismounting a nut on an adjusting lead screw and pulling a handle, the heat dissipation assembly body is taken out from the mounting hole by pulling the adjusting lead screw, and the heat dissipation fan is taken down from a sliding rail by dismounting a fixing bolt, so that the heat dissipation fan is more convenient to clean and maintain; normal operation and the heat dissipation effect of the fan are ensured, the heat dissipation assembly is driven by the adjusting lead screw to turn over by 180 degrees, the air outlet direction of the heat dissipation fan is aligned with the heat dissipation net, dust on the heat dissipation net is blown off, and the heat dissipation net is cleaned.

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.

The invention relates to a straddle type vehicle. The straddle type vehicle is at least provided with a vehicle frame unit and a vehicle body cover unit covering the periphery of the vehicle frame unit. The frame unit is provided with a head tube and a main tube extending from the head tube to the rear part of the bicycle body, the main tube is provided with a pedal tube part towards the rear part of the bicycle body, the pedal tube part is provided with a rear frame towards the rear part of the bicycle body, and the rear frame is provided with an upper transverse tube part; a power unit is arranged between the rear part of the pedal pipe part and the rear frame; a pedal plate of the bicycle body cover unit covers the pedal pipe part to form a foot placing part; a storage box is arranged on the rear frame of the frame unit, and a seat cushion is arranged on the rear frame and above the storage box; the vehicle body cover unit is further provided with a central vehicle body cover arranged below the front end of the seat cushion in a covering mode. The bestriding type vehicle is provided with a power controller capable of controlling the power unit. The power controller is arranged at the rear end of the foot rest part; therefore, the space at the rear end of the foot placing part can be effectively utilized, and meanwhile, the power controller can obtain a better heat dissipation effect.

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.

The utility model provides a battery assembling and connecting device suitable for a new energy automobile, which belongs to the technical field of new energy automobiles and comprises an assembling box body, connecting grooves are arranged at two ends of the assembling box body, and four fixing holes are arranged at the front end and the rear end of the assembling box body. Line holes are formed in the front end and the rear end of the assembly box body, limiting openings are formed in the two ends of the assembly box body, clamping pieces are movably clamped in the two limiting openings, and the three square connecting openings are specially designed to be used for guiding airflow passing by when a vehicle runs at a high speed to be transmitted into the connecting openings through the air inlet pipe and then enter the assembly box body. Heat dissipation and cooling treatment on the internal automobile battery is achieved, the use efficiency of the battery is improved, the service life of the battery is prolonged, and the safety and stability of an automobile in the running process are guaranteed.