11results about How to "Reduce axial height" patented technology

The present invention provides a bearing for a fluid pump. When the fluid pump is working, a positive pressure area (28) for fluid pumping out and a negative pressure area (27) for fluid inflow are formed in the fluid pump. A fluid supply groove (253) and a fluid return groove (254) extending in the axial direction are respectively formed on the wall of the shaft hole (26) of the bearing (25). The fluid supply groove (253) is connected to the positive pressure area (28), and the fluid return groove (254) is connected to the negative pressure area (27). Moreover, the fluid supply groove (253) is in the shape of a blind groove. The present invention can reduce the clamping force of the oil seal, or directly omit the oil seal, thereby reducing the manufacturing cost of the oil pump.

This invention provides an insulating frame, a stator assembly, and a motor. The insulating frame includes an outer wall (1), inner teeth (2), and a frame bridge (3) connecting the outer wall (1) and the inner teeth (2). The axial height of the inner teeth (2) is lower than the axial height of the outer wall (1). According to the insulating frame of this invention, the axial deformation of the inner teeth can be effectively reduced, avoiding the problem of the insulating frame interfering with the rotor.

A transformer single-side oil-conducting continuous coil structure suitable for special environments includes a first paper coil, a second paper coil, a first cushion block, and a second cushion block; the second paper coil is placed at the first and last sections A of the transformer coil, on the lower side of the first and third sections of the first section and on the upper side of the last and third sections of the last section; the second cushion block is placed at the first and last sections A of the transformer coil, on the lower side of the first and fourth sections of the first section and on the upper side of the last and fourth sections of the last section; the first cushion block and the second paper coil are placed on both sides of the coil at the middle connecting section C of the transformer coil; the second cushion block is placed at the connecting and interrupting section D of the transformer coil. The thickness of the first paper coil is less than the thickness of the second paper coil, less than the thickness of the first cushion block, and less than the thickness of the second cushion block; while ensuring the heat dissipation requirements of the coil, a thinner paper coil is used to replace the thicker cushion block on one side of the continuous coil coil, which is suitable for use in areas that are in an unsaturated state for a long time, and has good economy and practicality.

Disclosed are a three-branch balanced winding of a six-pole, fifty-four-slot flat copper wire motor and a method. A three-branch balanced winding of a six-pole, fifty-four-slot flat copper wire motor includes a three-phase flat copper wire winding distributed symmetrically along a circumferential direction of an iron core slot. Spans of the welding end (1) are equal, and heights of the lead welding ends (1) are equal. The power lead wire end (3) is composed of four U-Pin wire types and one I-pin wire type, and a first layer of the power lead wire end (3) is composed of an I-Pin wire (4) and an U-pin wire (5) with an equal span. Both a second layer and a third layer are composed of U-pin wires (6) with an equal span. Both a fourth layer and a fifth layer are composed of U-pin wires (7) with an equal span. A sixth layer is composed of a U-pin wire (8) with an equal span.

The utility model provides a top combustion type hot-blast stove, which can optimize the structure of the hot-blast stove on the premise of ensuring the combustion performance of the hot-blast stove by improving the structure of the top combustion type hot-blast stove. The top combustion type hot blast stove comprises a vault section located at the top end and an equal-diameter section connected to the lower side of the vault section, and the radial size of the vault section is gradually reduced from bottom to top. An annular air cavity is arranged around the central axis of the arch crown section, the annular air cavity is provided with two spaced arc-shaped cavity sections, one arc-shaped cavity section is used for being communicated with an air source to serve as an air cavity channel, and the other arc-shaped cavity section is used for being communicated with a coal gas source to serve as a coal gas cavity channel.

The invention provides a motor which comprises a stator and a rotor, the rotor is sleeved with the stator, a first groove is formed in the end of the stator, one side of the first groove penetrates through the inner wall of the stator in the radial direction of the stator, a Hall chip is installed in the first groove, a magnetic ring is arranged at the end of the rotor, and the Hall chip is installed in the magnetic ring. And the Hall chip and the magnetic ring are arranged oppositely. According to the motor, the technical problem that the axial height of the motor is large due to the structure of the magnetic ring and the Hall plate in the prior art can be solved.

A fan impeller is disclosed to address the problem of turbulence generated by existing fan impellers. It includes: a hub having a top plate and a ring wall connected to the top plate, the ring wall surrounding a circumferential portion; a first blade group having a plurality of first blades connected to the circumferential portion; and a second blade group having a plurality of second blades connected to the ring wall, the second blades not connected to the circumferential portion, the second blade group located between the ring wall and the first blade group. This invention also relates to a cooling fan. This can improve airflow efficiency and reduce noise.

The application discloses an electronic expansion valve, which comprises a shell, a bearing support, a stopper and a driving assembly. The shell has a cavity. The bearing support is provided with a first anti-rotation groove, a first limiting piece and a second limiting piece. The first anti-rotation groove is arranged on the circumferential wall of the bearing support. The first limiting piece and the second limiting piece are respectively located at the two ends of the extension direction of the first anti-rotation groove. The stopper is arranged in the bearing support and is movable along the axial direction of the shell. The outer circumferential wall of the stopper is provided with a first anti-rotation lug. The first anti-rotation lug is located between the first limiting piece and the second limiting piece. The first limiting piece and the second limiting piece are both used for limiting the movement of the stopper along the axial direction of the shell. The driving assembly is arranged on the shell and comprises a screw rod. The screw rod is arranged in the stopper and is threadedly connected with the stopper. According to the electronic expansion valve, the axial height of the screw rod can be reduced, the height of the whole electronic expansion valve is reduced, the miniaturization of the electronic expansion valve is facilitated, and the cost is reduced.

This invention discloses a multi-winding motor conductive ring structure, stator, and wind turbine generator. The motor conductive ring structure includes U, V, and W phase conductive ring groups. These three phase groups are arranged in rings from the outside inwards, with spacing between them, and are located on the same horizontal plane. Each phase group consists of 2N full-circle windings and 2N minor-arc windings. The virtual circle spacing formed by every two minor-arc windings is located between two full-circle windings. All conductive rings are located on a concentric circle, forming 4N sets of windings, evenly divided into two groups. Each group is individually connected to a corresponding converter. This invention divides multiple sets of windings into two equal parts. By combining full-circle windings and minor-arc windings, the winding current located within the two semicircles is introduced into the same converter, achieving redundancy design and uniform motor stress, avoiding vibration, noise, and other faults. It also reduces axial length and material usage, thereby reducing the unit's weight and manufacturing cost.

The utility model discloses a kind of high-voltage winding structures of dry-type transformer, including first coil unit and multiple taps;Wherein, the first coil unit is the arbitrary section in the multiple coil units in the high-voltage winding structure of dry-type transformer;The first coil unit includes multiple wire layers distributed along dry-type transformer radial direction, winding;Multiple wire layers include the wire layer of tap area, the wire layer in the radial direction inside of tap area, and the wire layer in the radial direction outside of tap area;Multiple taps are all led out from the wire layer of tap area place.The high-voltage winding structure of dry-type transformer of the utility model can reduce transverse leakage magnetic influence, fundamentally improve the reliability, security and service life of transformer long-term operation, and economic benefit is remarkable.The utility model further provides a kind of dry-type transformer.

The invention discloses an electromagnetic drive and support structure of a two-dimensional fast reflector, including a reflector, a reflector bracket, a rigid support assembly, a voice coil motor, a base and a shell; the reflector is supported by the reflector bracket on the rigid bearing assembly; the reflector bracket rotates around a first axis relative to the rigid bearing assembly; the rigid bearing assembly is supported on the shell; the rigid bearing assembly rotates around a second axis relative to the shell; the shell is fixed on the base; the voice coil motor is fixed between the shell and the base. The invention can realize two-dimensional co-pivot rotation, reaching a mirror deflection angle of more than ±20°; can resist large impact vibration; and can also save the axial height of the fast reflector device, making the structure of the device more compact.