4results about How to "Fast winding speed" patented technology

The application relates to a built-in current-limiting reactor, which comprises an upper yoke, a coil and a lower yoke arranged in sequence from top to bottom, wherein the upper yoke is provided with an upper yoke frame, the upper side of the upper yoke frame is provided with an upper connecting seat, the inside of the upper yoke frame is provided with upper silicon steel sheets, the upper silicon steel sheets are insulated from the upper yoke frame and connected with the upper connecting seat, the upper connecting seat is connected with a corresponding upper clamp of a transformer, the lower yoke is provided with a lower yoke frame, the lower side of the lower yoke frame is provided with a foot pad, the inside of the lower yoke frame is provided with lower silicon steel sheets, the lower silicon steel sheets are insulated from the lower yoke frame and connected with the corresponding foot pad, the foot pad is connected with a corresponding lower clamp of the transformer, vertical screw rods are arranged between the upper yoke and the lower yoke, the upper ends of the vertical screw rods are fixedly connected with the corresponding upper connecting seats, the lower ends of the vertical screw rods are fixedly connected with the corresponding foot pads, upper lead wire rows and lower lead wire rows are arranged outside the coil, and the upper lead wire rows and the lower lead wire rows are respectively connected with corresponding low-voltage lead wire rows of the transformer. The built-in current-limiting reactor has lower cost, smaller loss, stronger short-circuit resistance, shortened production cycle and reduced installation space.

The application discloses a centrifugal fan air outlet structure, a fan applying the same and a combined fan, and belongs to the technical field of centrifugal fans. The centrifugal fan air outlet structure comprises an outer shell plate, an air outlet and an air inlet. The air inlet is arranged on one side wall of the outer shell plate. The other side of the outer shell plate is open to form an opening. The air outlet is arranged on one end of the outer shell plate. The centrifugal fan air outlet structure further comprises a wind guide part. The wind guide part is arranged on the upper edge of the outer shell plate connected with the air outlet. When viewed along the air outlet direction of the air outlet, the included angle between the inner side of the wind guide part facing the inner cavity and the horizontal plane is B, and 0° < B ≤ 15°. The flow rate difference of the air inlet is adjusted through the inclination angle of the wind guide part, so that the airflow turbulence at the outlet is reduced, the noise of the fan is reduced, and low-pressure surge is eliminated.

The utility model belongs to winding equipment technical field relates to a winding mould based on residual magnetic field iron core coil. Including: encircle area module block, first limit area module block, second limit area module block and set up on encircle area module block's winding machine mounting hole, utilize winding machine mounting hole and assemble winding mould on manual winding machine, improved winding efficiency. Encircle area module block is the center of winding, provides stable basis for the encircle of enameled wire, through the restriction of first limit area module block and second limit area module block, cooperate encircle area module block to form winding space, and winding space and the outer contour of target iron core coil with winding are completely matched. The utility model can ensure that enameled wire closely adheres along the surface of iron core in winding process, ensure that enameled wire is wound within the prescribed range, guarantee that the shape and size of the wound coil meet the requirements. The utility model can meet the winding requirement of non-standard iron core, and improve the winding speed of non-standard iron core.

This utility model relates to the field of dustproof covers for air-conditioned compartments, specifically a dustproof cover for the air outlet of a grain depot's air-conditioned compartment. It includes a connecting pipe with a cover mechanism on its surface. The connecting pipe is fixedly connected to the air outlet of the air-conditioned compartment, improving air exchange efficiency. Two sets of flaps are connected to the mounting components via a connecting shaft, and the flaps can rotate relative to each other along the mounting components via bearings, thus diverting the airflow and improving airflow coverage efficiency. The cover mechanism is quickly fitted and connected to the connecting pipe via the mounting components. A limiting frame restricts the installation position of the mounting components, ensuring convenient disassembly and assembly of the cover mechanism. This solves the problems of cumbersome disassembly and assembly methods and inconvenience for automatic opening and closing in most traditional cover methods. Traditional covers often use screw fastening or clip nesting, requiring special tools for individual disassembly, resulting in long single-operation times.