CN206060375U - Circular Winding induction conductivity - Google Patents

Abstract

A toroidal winding induction motor. The internal winding of the traditional induction motor mostly adopts lap winding or drum winding, but this winding is not suitable for motors with short shaft length, large diameter and few poles. Large leakage reactance directly affects the performance of the motor. A ring winding induction motor, which consists of: ring winding (1), rotor (2), stator core (3) and casing, the ring winding is a coil structure embedded in the stator slot, both ends pass through the stator core and The opening at the back of the stator yoke is closed, and a set of through slots with the same structure are processed on the outer arc side and inner arc side of the stator core. The rotor mentioned above is placed at the hollow position of the stator iron core. The rotor adopts a squirrel-cage rotor. The strips are aluminum strips or copper strips. The utility model is applied in the power system that the mechanical device provides the torque, such as the mine hoist, the compressor used in the chemical plant, the water supply pump and the fan etc.

Description

Toroidal Winding Induction Motor

Technical field:

The utility model relates to a ring winding induction motor.

Background technique:

Industrial production is inseparable from the power system that provides power. Among them, the induction motor is simple in structure, low in price, and reliable in operation. Making it an extremely important electromechanical product, the induction motor is the motor with the largest usage and the widest coverage. At present, the internal windings of induction motors mostly use stacked windings or drum windings, but this winding is used in motors with short shafts, long diameters and few poles. Copper is used to increase the utilization rate of wires and the leakage reactance at the end is relatively large. It affects the efficiency and torque of the motor and increases the manufacturing cost. In view of this situation, the utility model uses the ring winding in the induction motor.

Invention content:

The purpose of this utility model is to provide a ring winding induction motor, which is a new type of motor produced by applying the new winding form of the ring winding to the induction motor, and its theoretical slot full rate can reach up to 90%, and it can also be used at different times. Pole switching is achieved using power electronics.

Above-mentioned purpose realizes by following technical scheme:

A ring winding induction motor, which consists of: ring winding, rotor, stator core and casing, the ring winding is a coil structure embedded in the stator slot, both ends pass through the stator core and behind the stator yoke The opening of the stator core is closed, and a group of through slots with the same structure are processed on the outer arc side and inner arc side of the stator core. The rotor is placed at the hollow position of the stator core, and the rotor adopts a mouse Cage rotor, the guide bars are aluminum or copper bars.

The beneficial effects of the utility model:

1. The utility model adopts ring windings, which can greatly reduce the usage of copper wires, improve the utilization rate of wires, and reduce the copper consumption and end leakage of the motor when applied to motors with long short axis, large diameter and few poles. anti.

Compared with the traditional stacked winding or drum-shaped ring winding, the utility model breaks through the concept of pitch in the traditional winding form, and can more flexibly realize pole changing without power electronic devices.

Compared with the traditional induction motor, the utility model can greatly improve the slot full rate without interlayer insulation and is convenient to go offline. In the ring winding induction motor, the slot full rate in the stator slot is 85%-90%.

Its advantage is that the winding uses less copper and the utilization rate is high. It breaks through the concept of pitch in the traditional winding form and is easy to change poles and adjust speed.

Description of drawings:

Accompanying drawing 1 is the structural representation of the utility model.

Accompanying drawing 2 is the three-dimensional structural diagram of the annular winding and the stator core of the utility model.

detailed description:

Example 1:

A ring winding induction motor, which consists of: ring winding 1, rotor 2, stator core 3 and casing, the ring winding is a coil structure embedded in the stator slot, both ends pass through the stator core and pass through it The opening at the back of the stator yoke is closed, a set of through slots with the same structure are processed on the outer and inner arc sides of the stator core, the rotor is placed at the hollow position of the stator core, and the The rotor adopts a squirrel-cage rotor, and its guide bars are aluminum or copper bars.

Claims (1)

1. a kind of Circular Winding induction conductivity, its composition include：Circular Winding, rotor, stator core and casing, its feature It is：Described Circular Winding is embedded in stator slot for loop construction, and the stator core described in the Jing of two ends simultaneously passes through its stator back of the yoke Opening closure afterwards, the external arc side and Inner arc side of described stator core are machined with one group of structure identical groove, Described rotor is placed with the hollow position of described stator core, described rotor adopts cage rotor, and its sliver is Aluminum strip or copper bar.