8results about How to "Increase overall volume" patented technology

The utility model discloses a sounding unit, including basin stand, magnetic circuit system, conducting centering disk and a plurality of voice coil, magnetic circuit system is connected basin stand, magnetic circuit system includes yoke, and the central magnetic subassembly and first side magnetic structure that are respectively provided on yoke, central magnetic subassembly is located between at least one group of two oppositely arranged first side magnetic structure, the central magnetic assembly comprises a plurality of central magnetic structures which are arranged side by side, the yoke is provided with a window, two opposite side edges of the window are respectively connected with flanges, and the flanges are provided with openings; the voice coils and the central magnetic structures are arranged in a one-to-one correspondence manner, and partial areas of the voice coils are located between the central magnetic structures and the flanges; the conduction centering disk comprises an inner mounting part, a cantilever part and an outer mounting part which are connected in sequence, a partial area of the cantilever part corresponds to the window and is located between the two flanges, one end of the inner mounting part penetrates through the opening and is fixedly connected with the voice coil, and the outer mounting part is connected with the basin stand. The sound production unit has high performance.

The utility model discloses a sound production unit, which comprises a diaphragm assembly, a voice coil, a spacer, two basins and two magnetic circuit assemblies, and at least one of the basins is provided with a sound outlet. The magnetic circuit assemblies are connected with the basins in a one-to-one correspondence manner, and each magnetic circuit assembly is provided with a magnetic gap; the two sides of the vibrating diaphragm assembly are respectively connected with the basin stand, and the center of the vibrating diaphragm assembly is provided with a hollow window. The voice coil is located at the hollow window and is connected with the diaphragm assembly, and the top end and the bottom end of the voice coil respectively extend into the two magnetic gaps; the spacer is arranged in the hollow area of the voice coil, and the edge of the spacer is connected with the inner peripheral wall of the voice coil. The sound production unit is novel in structure, adopts a double-magnetic-circuit design, can fully utilize the front and rear cavity spaces of the sound production unit, increases the total volume of the magnetic steel, and improves the performance of the sound production unit; the structure of the single voice coil enables the sounding unit to be simpler in structure, facilitates the production of the sounding unit, and facilitates the control of the manufacturing cost of the sounding unit.

The present application relates to a kind of stranding machine cradle beam structure and processing method, belong to stranding machine structure technical field, including beam body, the beam body includes a rectangular hollow steel tube, the steel tube includes support section in the center and the connecting section of both ends along the axial direction, two the connecting section gradually thins from the side close to center to the side close to both ends, the axial length of the connecting section is less than solder layer, the inner surface of the connecting section is flush with center section, the outer surface of the connecting section is formed with slope face, any described slope face is provided with solder layer, the outer surface of the solder layer is flush with the outer surface of steel tube center section;The connecting section of the beam body both sides is connected with the both sides disc of stranding machine cradle, two described connecting section is connected with corresponding disc by the mode that solder layer and corresponding disc are welded, the beam body is connected with disc, and the axial center line of itself is parallel with the axial center line of stranding machine cradle.

The application discloses a loudspeaker and an electronic device, and belongs to the technical field of electronic devices. The loudspeaker comprises a support, a diaphragm, a voice coil, a driving magnet and a flexible circuit board. The diaphragm comprises a fixed part, a ball top part and a folded ring part. The fixed part is connected with the support, and the ball top part is connected with the fixed part through the folded ring part. The voice coil is connected with the ball top part. The driving magnet is installed on the support and is used to drive the voice coil to drive the ball top part to vibrate. The voice coil and the driving magnet are located on a first side of the diaphragm, and the flexible circuit board is located on a second side of the diaphragm. The flexible circuit board is installed on the support, and the voice coil is connected with the flexible circuit board. The flexible circuit board is used to at least supply power for the voice coil.

The utility model discloses a sound production unit, which comprises a diaphragm assembly, a voice coil, a spacer, an annular sealing cover, two basins and two magnetic circuit assemblies, and at least one of the basins is provided with a sound outlet; the magnetic circuit assemblies are connected with the basin frames in a one-to-one correspondence manner and are provided with magnetic gaps; the two sides of the diaphragm assembly are respectively connected with a frame, and the center of the diaphragm assembly is provided with a hollow window. The voice coil is located at the hollow window and is connected with the diaphragm assembly, and the top end and the bottom end of the voice coil respectively extend into the two magnetic gaps; the spacer is arranged in the hollow area of the voice coil, and the edge of the spacer is connected with the inner peripheral wall of the voice coil; the annular sealing cover comprises an outer side part, an accommodating part and an inner side part which are connected in sequence, the accommodating part accommodates partial area of the voice coil and is fixedly connected with the voice coil, the outer side part is in sealed connection with the diaphragm assembly, and the inner side part is in sealed connection with the spacer. The sound production unit is excellent in performance; the arrangement of the annular sealing cover can improve the structural stability of the sound production unit and reduce the risk of separation of the voice coil and the diaphragm assembly / spacer.

The invention discloses low-temperature controllable gelatinized nano titanium sol preparation equipment, and particularly relates to the technical field of nano titanium sol preparation, the low-temperature controllable gelatinized nano titanium sol preparation equipment comprises an equipment body, a stirring assembly, a feeding assembly and an adjusting assembly, the stirring assembly comprises a stirring rod arranged in the equipment body, and the stirring rod is used for stirring materials in the equipment body; the stirring rod is arranged on the equipment body, the feeding assemblies are arranged on the stirring rod in an array mode, the adjusting assemblies are arranged at the two ends of the stirring rod, and the adjusting assemblies can control opening and closing of the feeding assemblies. The problem that local pH changes violently and the stable state of particles is damaged due to the fact that the additive is added into the reaction kettle directly through the stirring rod in the stirring process is solved, and meanwhile the problem that the additive close to the end of the stirring rod is too much and the local pH changes violently due to centrifugal force generated during stirring is solved.

The utility model discloses a vibration cotton box, which belongs to the field of textile machinery and comprises a cotton box shell, and a cotton inlet front guide plate, a cotton inlet rear guide plate, a baffle, a vibration plate with air holes and a cotton outlet roller are arranged on the cotton box shell. The cotton box shell is provided with a pair of hand wheel adjusting assemblies for adjusting the position of the baffle, and the hand wheel adjusting assemblies act on the upper and lower sides of the baffle respectively; an eccentric adjusting assembly is arranged in the shell, a driving shaft which is centered and is in transmission connection with a driving motor is arranged on an adjusting frame of the eccentric adjusting assembly, an adjusting lead screw is arranged in the adjusting frame, a sliding block is arranged on the adjusting lead screw, an eccentric shaft is arranged on the sliding block, and the two ends of an eccentric connecting rod are in pivot connection with the eccentric shaft and the vibrating plate respectively. During working, the driving motor drives the driving shaft to rotate, so that the whole adjusting frame moves, meanwhile, the position of the sliding block can be adjusted by rotating the adjusting lead screw, the position of the eccentric shaft is changed, and then the vibration amplitude and frequency of the vibration plate are adjusted to meet the opening and conveying requirements of different fiber raw materials. The position of the baffle is adjusted through the hand wheel, and operation is convenient.

This invention discloses a raw material screening device for mining engineering, comprising a screening box, inside which are a first screening plate and a second screening plate. Both the first and second screening plates have a plurality of sieve holes, with the diameter of the sieve holes on the first screening plate being larger than that on the second screening plate. A cavity between the first and second screening plates is designated as a target particle size cavity. The top of the second screening plate has a plurality of baffles, the height of which decreases sequentially from left to right. A collecting body is located on one side of the screening box, and the collecting body is connected to the screening box. A first pump assembly is located on the side of the screening box away from the collecting body, and the first pump assembly is connected to the target particle size cavity. This invention has a simple structure and, through multiple screenings, can achieve relatively accurate screening of the target particle size of the desired raw material, thus ensuring that the screened raw material particles are approximately the same size.