CN202127300U - Rotor punching sheet - Google Patents

Abstract

The utility model relates to a rotor punching sheet, which comprises a rotor punching sheet body. A round edge of the rotor punching sheet body is symmetrically provided with two groups of winding grooves, a partition wall is arranged at a position of a central axis of each winding groove, and each winding groove is divided into a left chamber and a right chamber by the partition wall. Groove walls of the winding grooves are arc sides, and the partition wall is in a T shape. The rotor punching sheet only needs to change a stamping mold of the rotor punching sheet, and does not change the original assembly mode of a generator. The rotor punching sheet can improve efficiency of the generator, reduces reactive energy consumption of the generator and improves output efficiency of the generator, and is small in electromagnetic noise, lower in rotor punching sheet heating and copper consumption during a long term use.

Description

A kind of rotor punching

Technical field

The utility model belongs to technical field of motors, specifically, relates to a kind of generator amature punching.

Background technology

The rotor punching of generator generally adopts silicon steel sheet to process; Be provided with outline and be circular punching body; The round edge symmetry of this punching body has two groups of winding slots, cuts off outstanding formation of the bottom land at place, said winding slot axis, and this partition is divided into two chambers with said winding slot; The height of said partition is lower than the height of winding slot cell wall; Cutting off width is 1/4～1/5 of said winding slot Breadth Maximum, on the axis that cuts off, has mounting groove, and the notch of this mounting groove is positioned at and cuts off the top., some rotor punchings just form generator amature after being stacked; Just can in winding slot, twine motor windings, the cover cartridge screw is fixed on winding in the winding slot by gland with stationary gland on the mounting groove; Simultaneously; Be to guarantee the winding number of turns of winding in the winding slot, need to strengthen the space of winding slot, prior art comprises that the inwall to winding slot digs and cuts; Make the body width at winding slot cell wall root place locate 2～3 times of the body width, even sacrifice the width of rotor punching main body for the cell wall top.Rotor punching is the key components and parts in the generator, its material, interior round size, excircle dimension, flute profile size, flute profile what etc. the efficient of generator is had direct influence.

The utility model content

The purpose of the utility model is to provide a kind of rotor punching, and this rotor punching is used for generator, and in long-term use, electromagnetic noise is little, rotor punching generates heat and copper loss reduces, and reduces the idle energy consumption of generator, improves the delivery efficiency of generator.

For achieving the above object; The technical scheme of the utility model is: a kind of rotor punching, comprise the rotor punching body, and the round edge symmetry of this rotor punching body has two groups of winding slots; The place is provided with partition in said winding slot axis; This partition is divided into left and right two chambers with said winding slot, and said winding slot cell wall is the circular arc limit, and said partition is " T " shape.

Further, said partition is provided with notch.

When adopting technique scheme, the utility model has the advantages that: said winding slot cell wall is the circular arc limit, and said partition is " T " shape.Only need to change the diel of rotor punching, do not change original fit of generator; This rotor punching can improve the efficient of generator, and in long-term use, electromagnetic noise is little, rotor punching generates heat and copper loss reduces, and reduces the idle energy consumption of generator, improves the delivery efficiency of generator.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation:

Fig. 1 is the structural representation of the utility model rotor punching embodiment.

Embodiment

As shown in Figure 1, a kind of rotor punching of the utility model comprises rotor punching body 1, and the round edge symmetry of this rotor punching body 1 has two groups of winding slots 2, is provided with the partition 21 of " T " shape at place, said winding slot 2 axis, cuts off 21 and is provided with notch 22.This partition 21 is divided into left and right two chambers with said winding slot 2, and two sections circular arcs on the said rotor punching body 1 are symmetrical set to cut off 21.

Above-described only is the preferred implementation of the utility model; Should be understood that; For a person skilled in the art, under the prerequisite that does not break away from the utility model structure, can also make some distortion and improvement; These also should be regarded as the protection range of the utility model, and these can not influence effect and practical applicability that the utility model is implemented.

Claims (2)

1. rotor punching; Comprise the rotor punching body, the round edge symmetry of this rotor punching body has two groups of winding slots, and the place is provided with partition in said winding slot axis; This partition is divided into left and right two chambers with said winding slot; It is characterized in that said winding slot cell wall is the circular arc limit, said partition is " T " shape.

2. a kind of rotor punching according to claim 1 is characterized in that said partition is provided with notch.

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