3results about How to "Reduce axial height" patented technology

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.