CN201238215Y

CN201238215Y - Plunger ring structure of high-voltage three-phase asynchronous motor

Info

Publication number: CN201238215Y
Application number: CNU2008201514638U
Authority: CN
Inventors: 顾德军; 顾卫东
Original assignee: Shanghai Dianke Motor Technology Co Ltd
Current assignee: Shanghai Dianke Motor Technology Co Ltd
Priority date: 2008-07-31
Filing date: 2008-07-31
Publication date: 2009-05-13
Anticipated expiration: 2018-07-31

Abstract

The utility model relates to a pressing ring structure of the high-voltage three phase asynchronous motor, which is suitable for the structure design of the high-voltage three phase asynchronous motor. The pressing ring structure comprises stamped sheets in the 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 the number of the stamped sheets of the stator core. In order to increase the rigidity of the pressing ring and to satisfy the requirement to assemble the iron core, the tooth part of the pressing ring is thickened to reduce the separation of core teeth. The stamped sheets are combined tightly to reduce the iron loss of motor. By the integrated pressing structure, the total loss of the motor is reduced by 800W and the efficiency is increased by 0.55%.

Description

A kind of trim ring structure of high-voltage three-phase asynchronous motor

Technical field

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

Technical background

Energy problem is very outstanding at present, because high pressure compact(ing) machine and common high-voltage motor are widely used in various fields on the market, domestic high-voltage motor use amount is big, the efficiency of motor problem 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 influences efficiency of motor, temperature rise and useful life, 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 is formed, 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 portion is flicked greatly, pine between sheet will make the iron loss of motor increase, and no-load current increases, efficiency of motor descends, 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 a head it off.

Summary of the invention

The purpose of this utility model provides a kind of trim ring structure of high-voltage three-phase asynchronous motor, and this structure is improved on existing trim ring architecture basics 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 portion 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 portion and flick, tight between sheet, reduce the motor iron loss.

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

Description of drawings

Fig. 1 (Fig. 1-1, Fig. 1-2, Fig. 1-3) is the dress laminated structure of prior art high-voltage three-phase asynchronous motor;

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

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 a stator core, mainly form by the punching in stator tooth pressing plate, trim ring, the stator core, Fig. 1-2 is the stator tooth pressing plate, be that tooth pressure sheet or channel-section steel and stator end plate are welded, tooth pressure sheet or channel-section steel are identical with number of stator slots, because the high-voltage motor number of stator slots is many, tooth pressure sheet or channel-section steel quantity are identical with number of stator slots, also corresponding increasing, in the processing waste man-hour that causes tooth pressure sheet or channel-section steel, also corresponding the increasing during Welder of tooth pressure sheet or channel-section steel and stator end plate increased working strength of workers simultaneously; Fig. 1-3 is a trim ring, because iron core teeth portion is mainly fixed by tooth support, tooth pressure sheet intensity is little, and contact area is little, and the pressure of trim ring does not reach iron core teeth portion, causes tooth support tooth portion to lift up, and iron core teeth portion is flicked greatly, and pine between sheet increases the iron loss of motor.This also is the major defect of prior art structure.

With reference to Fig. 2 (Fig. 2-1, Fig. 2-2), this is the stator dress laminated structure of like product of the present utility model.Fig. 2-1 is a stator core, and Fig. 2-2 is 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 number of components and parts and manufacturing procedure, reduced working strength of workers in the course of processing, integral type trim ring tooth portion is thick, whole rigidity is good, and lifting surface area is big, and steel plate smoothing operation is arranged after the processing, evenness is good, make the contact area of it and iron core teeth portion big, stressed evenly, it is little that iron core teeth portion is flicked, tight between sheet, compare with common dress pressure mode, reduced the iron loss of motor, improved efficiency of motor.

Though 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 is used for illustrating the utility model; should understand and wherein can make variations and modifications and do not break away from the utility model in a broad sense; so be not that conduct is to qualification 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

1, a kind of trim ring structure of high-voltage three-phase asynchronous motor, comprise the punching in the stator core, it is characterized in that: described trim ring structure, it is an integral type trim ring, integral type trim ring bottom fluting, its groove number and stator punching adapt, and for strengthening the rigidity of trim ring, satisfy the pressure requirement that the stator core dress is pressed.

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