RU29622U1 - Single-phase capacitor asynchronous electric motor - Google Patents

Description

SINGLE-PHASE ASYNCHRONOUS MOTOR

CONDENSER

The inventive utility model relates to electrical engineering and can be used in household centrifugal submersible electric pumps, as well as in household electrical appliances that include asynchronous single-phase condenser motors of low power.

Known asynchronous single-phase capacitor electric motor containing a rotor with a rod copper winding (Electric pump motor BCN 0.5, general drawing No. IBZHK 062612.005).

The disadvantage of such an electric motor is the use of expensive copper winding, as well as the use of a large capacitor and the high complexity of the work associated with the rotation of the rotor core by a certain angle, necessary to ensure that the motor starts.

When starting single-phase motors without special devices, the starting torque of the motor is zero and the motor cannot come into rotation. The value of the capacitor capacity, selected according to the operating mode, is insufficient to obtain a high starting torque. The inventive utility model allows by rotating one part (package) of the rotor core relative to another to create an additional starting torque without increasing the capacitance of the capacitor. The electric motor contains a rotor with a core, divided into parts (packages) in the axial direction. Each part (package) has its own molded short-circuited winding. Each of the parts (packets) of the rotor core is rotated relative to the neighboring part to the part of the tooth division. The total rotation angle of the rotor core is the sum of the rotation angles of each part.

In fig. shows a general view of the electric motor. An asynchronous single-phase capacitor electric motor contains a stator 1, a rotor 2 with a core of several parts (packages) 3.4, 5, a cast aluminum short-circuited winding 6,7,8. At that, the part (package) 3 of the core is rotated relative to the part (package) 4 by an angle equal to the part of the tooth division, the part (package) 4 is rotated relative to the part (package) 5, etc. The number of parts (packets) of the rotor core

IPC НО2К 17/04 Н02К 17/08

determined by the power of the electric motor. The total angle of rotation of the core as a whole is equal to the sum of the angles of rotation of each part (package). The rotation of each part (package) and the entire core as a whole provides a bevel of the groove 9, which is necessary for starting by electric motors, and reduces the capacitance of the capacitor.

The use of the claimed utility model in single-phase asynchronous capacitor motors for domestic submersible pumps showed that the starting characteristics of the electric motor have improved significantly, the power consumption has decreased, and the efficiency has increased.

: UjOt / -and - t

The authors:

Applicant:

Industrial Director of CJSC Irivod

S.M. Lunev A.P. Pikulev N.S. Basalaev A.V. Pepelyaev

-.A. Gornov

Claims (2)

1. An asynchronous single-phase capacitor motor, containing a rotor with a core, divided into parts (packages) in the axial direction, a cast short-circuit winding, available in each part (package), characterized in that each of the parts (packages) of the core is rotated relative to the adjacent one corresponding to the part of the tooth division. 2. A single-phase capacitor asynchronous electric motor according to claim 1, characterized in that the total angle of rotation of the core is equal to the sum of the rotation angles of each part (package).