CN202737700U - Pressing ring structure of high-voltage three-phase asynchronous motor - Google Patents

Abstract

The utility model relates to a pressing ring structure of a high-voltage three phase asynchronous motor. The pressing ring structure is applicable to structure design of the high-voltage three-phase asynchronous motor. The pressing ring structure comprises punching sheets in a stator core and is characterized in that the pressing ring structure is an integrated pressing ring with slots at the lower part, and the number of the slots is matched with that of the punching sheets in the stator core. In order to increase the rigidity of the pressing ring and to satisfy the requirement of pressure for assembling the iron core, the tooth part of the pressing ring is thickened to reduce the separation of teeth of the core. The punching sheets are combined tightly to reduce the iron loss of the motor. By adopting the integrated pressing ring structure of the utility model, the total loss of the motor is reduced by 800W and the efficiency is increased by 0.55%.

Description

A kind of ring pressing construction of high-voltage three-phase asynchronous motor

Technical field

The utility model relates to a kind of ring pressing construction of motor, relates to or rather a kind of ring pressing construction of high-voltage three-phase asynchronous motor, is applicable to the structural design of high-voltage three-phase asynchronous motor, belongs to the middle and small motor technical field.

Background technology

Energy problem is very outstanding at present, because high-voltage compact motor and common high-voltage motor are widely used in various fields on the market, domestic high-voltage motor use amount is large, the efficiency of motor has caused social extensive concern, the power saving of motor has been laid out outstanding position, the stator core dress laminated structure of motor is an important step of design of electrical motor, and it not only affects efficient, temperature rise and the useful life of motor, and is also closely related with the consumption of effective material with the noise of motor simultaneously.

Motor loss mainly contain stator copper loss, rotor copper loss, iron loss, the windmill consumption, assorted consumption forms, wherein iron loss is the inconvenient loss of motor, in the motor manufacture process, because there is burr in stator punching, the stator core dress does not press tightly, iron core teeth section is flicked greatly, pine between sheet will make the iron loss of motor increase, and no-load current increases, the decrease in efficiency of motor, temperature rise raises, if structurally motor is improved, can raise the efficiency, reduce the utilization of effective material, and design the effective ways that novel trim ring is head it off.

Summary of the invention

The purpose of this utility model provides a kind of ring pressing construction of high-voltage three-phase asynchronous motor, and this structure is improved on existing ring pressing construction basis and formed, and can raise the efficiency, and reduces the utilization of effective material.

For achieving the above object, technical solution scheme of the present utility model is: change the dress laminated structure of existing stator tooth pressing plate and trim ring into the integral type trim ring, integral type trim ring bottom fluting, his groove number and stator punching are adapted, the tooth section thickening of trim ring, the rigidity of enhancing trim ring, satisfy the pressure requirement that the stator core dress is pressed, reduce iron core teeth section and flick, tight between sheet, reduce the motor iron loss.

The beneficial effects of the utility model: after adopting integral type ring pressing construction of the present utility model, the total losses of motor have reduced 800W, and efficient has improved 0.55%.

Description of drawings

Fig. 1-1 is the dress laminated structure of prior art high-voltage three-phase asynchronous motor;

Fig. 1-2 is the stator tooth pressing plate;

Fig. 1-3A is the side sectional view of trim ring;

Fig. 1-3B is the front view of trim ring;

Fig. 2-1 is the dress laminated structure of high-voltage three-phase asynchronous motor of the present utility model;

Fig. 2-2A is the front view of integral type trim ring;

Fig. 2-2B is the side sectional view of integral type trim ring.

Embodiment

With reference to Fig. 1, this is the high voltage motor stator dress laminated structure of prior art.

As shown in the figure, Fig. 1-1 is stator core, mainly formed by the punching 2 in stator tooth pressing plate 1, trim ring 4, the stator core, Fig. 1-2 is the stator tooth pressing plate, that tooth pressing plates or channel-section steel 6 are welded with stator end plate 5, tooth pressing plates or channel-section steel 6 are identical with number of stator slots, because high voltage motor stator groove number is many, tooth pressing plates or channel-section steel 6 quantity are identical with number of stator slots, also corresponding increasing, in the processing waste man-hour that causes tooth pressing plates or channel-section steel 6, also corresponding the increasing during Welder of tooth pressing plates or channel-section steel 6 and stator end plate 5 increased workman's labour intensity simultaneously; Fig. 1-3A and Fig. 1-3B are trim ring, because iron core teeth section is mainly fixed by tooth support, tooth pressing plates intensity is little, contact area is little, and the pressure of trim ring does not reach iron core teeth section, causes tooth support tooth section to lift up, iron core teeth section is flicked greatly, and pine between sheet increases the iron loss of motor.This also is the major defect of prior art structure.

(Fig. 2-1, Fig. 2-2A, Fig. 2-2B), this is the stator dress laminated structure of like product of the present utility model with reference to Fig. 2.Fig. 2-1 is stator core, and Fig. 2-2A and Fig. 2-2B are the integral type trim ring.

As shown in the figure, this stator dress laminated structure comprises integral type trim ring 3, punching 2 in the stator core, the integral type trim ring has replaced the dress laminated structure of stator tooth pressing plate+trim ring, cancel the stator tooth pressing plate, reduced zero coroner's of quantity and manufacturing procedure, reduced workman's labour intensity in the course of processing, integral type trim ring tooth section is thick, whole good rigidly, lifting surface area is large, and the steel plate leveling operation is arranged after the processing, evenness is good, make the contact area of it and iron core teeth section large, stressed evenly, it is little that iron core teeth section is flicked, tight between sheet, compare with common dress pressure mode, reduced the iron loss of motor, improved the efficient of motor.

Although the utility model is described with reference to the above embodiments; but those of ordinary skill in the art; will be appreciated that above embodiment illustrates the utility model; should understand and wherein can make various changes and revise and do not break away from a broad sense the utility model; so be not that conduct is to restriction of the present utility model; as long as in connotation scope of the present utility model, to the variation of above-described embodiment, the protection range that distortion all will fall into the utility model claim.

Claims (2)

1. the ring pressing construction of a high-voltage three-phase asynchronous motor comprises the punching in the stator core, it is characterized in that: described ring pressing construction is an integral type trim ring, integral type trim ring bottom fluting, and its groove number and stator punching adapt.

2. the ring pressing construction of high-voltage three-phase asynchronous motor according to claim 1 is characterized in that, described integral type trim ring, and the tooth section thickening of trim ring reduces core tooth part and flicks, and is tight between sheet.

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