IE5 three-phase asynchronous motor based on stator unequal-groove punching sheets and cast-aluminum rotor

A three-phase asynchronous, cast aluminum rotor technology, applied in the direction of electric components, magnetic circuit rotating parts, electrical components, etc., can solve the problems of increasing product cost and not meeting the purpose of energy saving and consumption reduction

Active Publication Date: 2020-09-18
SHANXI ELECTRIC MOTOR MANUFACTURING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But obviously this kind of attempt will inevitably increase the cost of the product,

Method used

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  • IE5 three-phase asynchronous motor based on stator unequal-groove punching sheets and cast-aluminum rotor
  • IE5 three-phase asynchronous motor based on stator unequal-groove punching sheets and cast-aluminum rotor
  • IE5 three-phase asynchronous motor based on stator unequal-groove punching sheets and cast-aluminum rotor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0106] (1) Each stator slot group on the stator unequal slot punching sheet includes a plurality of large stator slots and small stator slots. Specifically, the stator unequal slot punching sheet includes a ring-shaped second substrate 1. On the inner circular surface of the second substrate 1, there are at least six sets of stator slot groups 2 for placing copper wires radially and uniformly arranged along the circumferential direction of the second substrate 1, and each set of stator slot groups 2 includes each pole and each phase. The number of stator slots is three to nine, including at least one large stator slot 26 and at least two small stator slots 25. The area of ​​the small stator slots 25 is 80% to 95% of the area of ​​the large stator slots 26, adjacent The central angles between the large stator slot 26 and the small stator slot 25 are equal; the distribution of the large stator slot 26 and the small stator slot 25 in each set of stator slot groups 2 is as follows:...

Embodiment 1

[0111] Such as Figure 5As shown, the stator unequal slot punching sheet used in the IE5 three-phase asynchronous motor based on the stator unequal slot punching sheet and the cast aluminum rotor of embodiment 1 includes a ring-shaped second substrate 1, according to the number of stages of the motor At least six sets of stator slot groups 2 for placing copper wires are evenly arranged radially on the inner circular surface of the second substrate 1 along the circumferential direction of the second substrate 1 . There are three stator slots per pole and per phase in each set of stator slot groups 2 , including one large stator slot 26 and two small stator slots 25 . The distribution of the large stator slot 26 and the small stator slot 25 in the stator slot group 2 is as follows: a large stator slot 26 is arranged in the middle of the stator slot group 2, and a small stator slot 25 is arranged symmetrically on both sides of the large stator slot 26, namely The small stator sl...

Embodiment 2

[0123] Such as Figure 12 As shown, the stator unequal slot punching sheet used in the IE5 three-phase asynchronous motor based on the stator unequal slot punching sheet and the cast aluminum rotor of embodiment 2 includes a ring-shaped second substrate 1, according to the number of stages of the motor At least six sets of stator slot groups 2 for placing copper wires are evenly arranged radially on the inner circular surface of the second substrate 1 along the circumferential direction of the second substrate 1 . There are four stator slots per pole and per phase in each set of stator slot groups 2 , including two large stator slots 26 and two small stator slots 25 . The distribution of the large stator slot 26 and the small stator slot 25 in the stator slot group 2 is as follows: two large stator slots 26 are arranged in the middle of the stator slot group 2, and a small stator slot is arranged symmetrically on both sides of the two large stator slots 26 25, that is, the sm...

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Abstract

The invention discloses an IE5 three-phase asynchronous motor based on stator unequal-groove punching sheets and a cast-aluminum rotor. A rotor core of the motor is formed by laminating a plurality ofrotor punching sheets, each rotor punching sheet comprises an annular first substrate, a plurality of closed grooves are radially and uniformly formed in the outer annular surface of each first substrate along the circumferential direction of the first substrate, and aluminum conducting bars are cast in the closed grooves; a stator core of the motor is formed by laminating a plurality of stator unequal-groove punching sheets. Each stator unequal-slot punching sheet comprises a second substrate in a circular ring shape; stator groove groups used for placing copper wires are uniformly arrangedon the inner circular ring surface of the second substrate along the circumferential direction of the second substrate in a radial manner. The number of the stator slots of each pole and each phase ineach stator slot group is at least three, the stator slots comprise at least one large stator slot and at least two small stator slots, the large stator slot is arranged in the middle of the stator slot group, and the two sides of the large stator slot are respectively provided with one or more small stator slots; or at least one large stator slot, at least two middle stator slots and at least two small stator slots are included; the large stator slot is arranged in the middle of the stator slot group, two sides of the large stator slot are respectively provided with one or more small statorslots, one or more middle stator slots are respectively arranged between the large stator slot and the small stator slots, and concave slot wedges or convex slot wedges are plugged in the stator slotsembedded with the stator windings.

Description

technical field [0001] The invention belongs to the technical field of three-phase asynchronous motors, and in particular relates to an IE5 three-phase asynchronous motor based on stator unequal slot punching and a cast aluminum rotor. Background technique [0002] In 2014, the International Electrotechnical Commission IEC issued the IEC60034-30-1 "Energy Efficiency Classification of Single-speed, Three-phase Cage Induction Motors" standard, which unified the motor energy efficiency standards into four levels: IE1, IE2, IE3, and IE4, of which IE4 It is the highest efficiency level at present, that is, the highest efficiency level achievable by current technology. [0003] With the improvement of product performance index requirements in domestic and foreign markets, the highest grade IE4 motors in the current market will be replaced by IE5 grade motors. The target value of IE5 is determined by reducing the loss by about 20% based on the level of IE4. However, it is very di...

Claims

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Application Information

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IPC IPC(8): H02K1/26H02K1/16H02K3/02H02K3/12
CPCH02K1/265H02K1/165H02K3/02H02K3/12H02K2213/03
Inventor 张文和马利亚陈璞贾建平武泽永邓宏伟张文华冯建平贾玉清刘兰冰吴栋民杨创照郭彩叶马长爱程鹏航刘慧珍裴良裕郅焱温泽鹏侯志坚郭宝权翟希娟曹改兰孔祥勇高秀清李伟李军付红卫杨大山张洪荣余瑾柳建军
Owner SHANXI ELECTRIC MOTOR MANUFACTURING CO LTD
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