CN207320974U - A kind of self-starting synchronous magnetic resistance motor of the rotor core containing unsymmetric structure - Google Patents

A kind of self-starting synchronous magnetic resistance motor of the rotor core containing unsymmetric structure Download PDF

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Publication number
CN207320974U
CN207320974U CN201721481822.1U CN201721481822U CN207320974U CN 207320974 U CN207320974 U CN 207320974U CN 201721481822 U CN201721481822 U CN 201721481822U CN 207320974 U CN207320974 U CN 207320974U
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China
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self
parallel
ring region
fan ring
starting synchronous
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CN201721481822.1U
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Chinese (zh)
Inventor
胡吉亮
严伟灿
王国龙
王斌
孙军建
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Wolong Electric Drive Group Co Ltd
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Wolong Electric Group Co Ltd
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Abstract

Self-starting synchronous magnetic resistance motor is the utility model is related to, the rotor punching of self-starting synchronous magnetic resistance motor uses the structure of symmetry circumference uniform distribution more in the prior art, and the torque pulsation of the motor containing the structure iron core is larger;The utility model provides a kind of self-starting synchronous magnetic resistance motor of rotor core containing unsymmetric structure, including motor casing, line stator, rotor core and main shaft, the rotor core includes some be stacked and rotor punching in a ring, the rotor punching, which is equipped with, forms multiple multigroup magnetic flux intercepting grooves in fan ring region and multigroup cage grooves, the inner side of each fan ring region is equipped with one group of magnetic flux intercepting groove, its outside is equipped with one group of cage grooves;One group of magnetic flux intercepting groove in the fan ring region is non-axis symmetry figure;It can effectively suppress or reduce reluctance motor electromagnetic noise caused by torque pulsation and electric and magnetic oscillation.

Description

A kind of self-starting synchronous magnetic resistance motor of the rotor core containing unsymmetric structure
Technical field
Self-starting synchronous magnetic resistance motor is the utility model is related to, more specifically a kind of rotor core containing unsymmetric structure Self-starting synchronous magnetic resistance motor.
Background technology
At present, the rotor punching of self-starting synchronous magnetic resistance motor is essentially all the structure using symmetry circumference uniform distribution. By taking the rotor punching of four magnetic poles as an example, rotor punching in a ring is equipped with four groups of magnetic flux intercepting grooves, four groups of magnetic flux intercepting grooves around Rotor punching center circumferential is uniformly distributed to form the fan ring region that four are 90 degree respectively, and each ring region of fanning forms a magnetic pole.Same fan The center line of one group of magnetic flux intercepting groove in ring region in symmetrical and its symmetry axis in fan ring region for fan ring region, in other words this One group of magnetic flux intercepting groove is the center of circle of zhou duicheng tuxing and its symmetry axis Jing Guo punching in the orthographic projection in punching;Adjacent fan ring Magnetic flux intercepting groove in area is symmetrical on the magnetic pole line of demarcation between two fan ring regions.
The iron core formed by the structure punching is symmetrical structure, the reluctance motor tool containing such symmetrical structure rotor core There is larger torque pulsation, and then larger electromagnetic noise and electric and magnetic oscillation can be produced.Therefore, being badly in need of one kind can reduce and can suppress Or reduce because torque pulsation causes the self-starting synchronous magnetic resistance motor of electromagnetic noise and electric and magnetic oscillation.
Utility model content
Technical problem to be solved in the utility model is to overcome above-mentioned defect existing in the prior art, there is provided Yi Zhongneng Reduction can suppress or reduce reluctance motor because torque pulsation causes the rotor containing unsymmetric structure of electromagnetic noise and electric and magnetic oscillation The self-starting synchronous magnetic resistance motor of iron core.
To achieve the above object, the utility model is achieved by the following technical programs:It is a kind of to turn containing unsymmetric structure The self-starting synchronous magnetic resistance motor of sub- iron core, including motor casing, line stator, rotor core and main shaft, the rotor core include Some to be stacked and rotor punching in a ring, the rotor punching, which is equipped with, forms multiple multigroup magnetic flux intercepting grooves in fan ring region With multigroup cage grooves, each inner side for fanning ring region is equipped with one group of magnetic flux intercepting groove, its outside is equipped with one group of cage grooves;The fan ring One group of magnetic flux intercepting groove in area is non-axis symmetry figure.
Using above-mentioned technical proposal, rotor punching is made into unsymmetric structure by symmetrical structure, and then make self-starting synchronous The rotor core of reluctance motor also becomes unsymmetric structure, so that effectively suppression or the reduction electromagnetism caused by torque pulsation is made an uproar Sound and electric and magnetic oscillation.
The utility model is more preferably:One group of magnetic flux intercepting groove in the fan ring region is included in the fan ring region The left side and right side that center line both sides are oppositely arranged, left side and right side include some be parallel to each other and and rotor punching The tangent parallel-segment of concentric circles and be connected with parallel-segment end inclination angle section.
The utility model is more preferably:Angle and the right side between inclination angle section and parallel-segment in the left side The angle between inclination angle section and parallel-segment in half portion is unequal.
The utility model is more preferably:The length of parallel-segment segment length parallel with the right side on the left side Spend unequal.
The utility model is more preferably:In same left side or right side, inclination angle section is supported or opposed by parallel-segment end Extend from rotor punching center position.
The utility model is more preferably:Multigroup cage grooves on rotor punching in being circumferentially distributed and be located at rotor On the outside of punching;In same fan ring region, one group of cage grooves include along inclination angle section stretch out direction setting short groove and be arranged at fan The elongated slot of ring region center line both sides.
The utility model is more preferably:The elongated slot is made of two connected straightways, wherein a straightway with it is same Parallel-segment in one fan ring region is parallel.
The utility model is more preferably:The magnetic flux intercepting groove and cage grooves are equipped with four groups, form four respectively Fan ring region and fan the corresponding magnetic pole of ring region with this;Two adjacent groups magnetic flux intercepting groove is in asymmetric setting on rotor punching.
In conclusion the utility model has the advantages that:It is non-by being set in self-starting synchronous magnetic resistance motor The rotor core of symmetrical structure, so as to effectively suppress or reduce reluctance motor electromagnetic noise caused by torque pulsation and electromagnetism Vibration.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model;
Fig. 2 is the structure diagram of rotor core in the utility model;
Fig. 3 is the structure diagram of rotor punching in the utility model.
In figure:1st, motor casing;2nd, line stator;3rd, rotor core;4th, main shaft;5th, rotor punching;51st, ring region is fanned;52nd, magnetic flux Intercepting groove;53rd, parallel-segment;54th, inclination angle section;55th, cage grooves;551st, short groove;552nd, elongated slot.
Embodiment
The utility model is described in further detail below in conjunction with attached drawing.
The present embodiment is only explanation to the utility model, it is not the limitation to the utility model, this area skill Art personnel as needed can make the present embodiment the modification of no creative contribution after this specification is read, but as long as All protected in the right of the utility model be subject to Patent Law.
As shown in Figs. 1-3, a kind of self-starting synchronous magnetic resistance motor of rotor core containing unsymmetric structure, including electricity are shown Casing 1, line stator 2, rotor core 3 and main shaft 4, and motor assist structure.
Motor casing 1 includes engine base, is respectively arranged on the drive end bearing bracket and rear end cap of engine base both sides.Drive end bearing bracket is equipped with fore bearing, Rear end cap is equipped with rear bearing.Line stator 2 is fixed in engine base, and rotor core 3 is arranged in line stator 2.Main shaft 4 is worn successively Fore bearing, rotor core 3 and rear bearing.
Line stator 2 includes stator core, stator winding.Stator core is a part for motor magnetic circuit, generally by 0.35- 0.5 millimeters thick surface has the punching silicon-steel of insulating layer, is overrided to form, and has equally distributed groove in the inner circle punching of iron core, uses To embed stator winding.Stator winding is the circuit part of motor, is passed through three-phase alternating current, produces rotating excitation field.Generally by Three are mutually formed by connecting in space every 120 ° of electrical angles, the identical winding of the structure of symmetric arrays, each line of these windings Circle embeds in each groove of stator respectively according to certain rules.
Rotor core 3 include it is some be stacked and rotor punching 5 in a ring, rotor punching 5 be equipped with formed it is multiple in fan Multigroup the magnetic flux intercepting groove 52 and multigroup cage grooves 55 of ring region 51.The inner side of each fan ring region 51 is equipped with one group of magnetic flux intercepting groove 52, its outside is equipped with one group of cage grooves 55, forms a magnetic pole;The one group of magnetic flux intercepting groove 52 fanned in ring region 51 is non-axis symmetry figure Shape.The aluminium conducting bar that rotor core 3 is equipped with cast-in aluminum squirrel cage and cast-in aluminum squirrel cage is arranged in cage grooves 55 one by one.
In the present embodiment, magnetic flux intercepting groove 52 and cage grooves 55 are equipped with four groups, respectively formed four fan ring regions 51 with And fan 51 corresponding magnetic pole of ring region with this;Two adjacent groups magnetic flux intercepting groove 52 is in asymmetric setting on rotor punching 5.
One group of magnetic flux intercepting groove 52 in fan ring region 51 is included in the left side that the center line both sides of fan ring region 51 are oppositely arranged And right side, left side and right side include some be parallel to each other and the parallel-segment 53 tangent with the concentric circles of rotor punching 5 And the inclination angle section 54 being connected with 53 end of parallel-segment.In same left side or right side, inclination angle section 54 is by the end of parallel-segment 53 Hold to away from 5 center position of rotor punching and extend.
The inclination angle section 54 and parallel-segment 53 in the angle and right side between inclination angle section 54 and parallel-segment 53 in left side Between angle it is unequal;53 length of parallel-segment is unequal on the length of parallel-segment 53 and right side on left side.
Multigroup cage grooves 55 on rotor punching 5 in being circumferentially distributed and positioned at the outside of rotor punching 5;Same fan ring region 51 It is interior, one group of cage grooves 55 include along inclination angle section 54 stretch out direction setting short groove 551 and be arranged at fan 51 center line two of ring region The elongated slot 552 of side.Elongated slot 552 is made of two connected straightways, wherein a straightway and the parallel-segment in same fan ring region 51 53 is parallel.
Motor assist structure includes fan blade, fan housing, terminal box.Fan blade and main shaft 4 are affixed, are rotated synchronously with rotor core 3, Heat dissipation for 1 surface of motor casing provides air quantity.Fan housing plays protection and leads wind action, and terminal box docking line apparatus plays support and protects The effect of shield.

Claims (8)

1. a kind of self-starting synchronous magnetic resistance motor of rotor core containing unsymmetric structure, including motor casing(1), line stator(2), turn Sub- iron core(3)And main shaft(4), the rotor core(3)It is stacked and rotor punching in a ring including some(5), the rotor Punching(5)It is multiple in fan ring region equipped with being formed(51)Multigroup magnetic flux intercepting groove(52)With multigroup cage grooves(55), each fan Ring region(51)Inner side be equipped with one group of magnetic flux intercepting groove(52), its outside is equipped with one group of cage grooves(55);It is characterized in that:It is described Fan ring region(51)One group of interior magnetic flux intercepting groove(52)For non-axis symmetry figure.
2. self-starting synchronous magnetic resistance motor according to claim 1, it is characterised in that:The fan ring region(51)Interior one group Magnetic flux intercepting groove(52)It is included in the fan ring region(51)The left side that is oppositely arranged of center line both sides and right side, left side and Right side includes some be parallel to each other and the parallel-segment tangent with the concentric circles of rotor punching(53)And and parallel-segment(53) The inclination angle section that end is connected(54).
3. self-starting synchronous magnetic resistance motor according to claim 2, it is characterised in that:Inclination angle section in the left side (54)With parallel-segment(53)Between angle and the right side in inclination angle section(54)With parallel-segment(53)Between angle not It is equal.
4. self-starting synchronous magnetic resistance motor according to claim 2, it is characterised in that:Parallel-segment on the left side(53) Length and the right side on parallel-segment(53)Length is unequal.
5. the self-starting synchronous magnetic resistance motor according to any one of claim 2-4, it is characterised in that:In same left side Or in right side, inclination angle section(54)By parallel-segment(53)End is to away from rotor punching(5)The direction extension at center.
6. self-starting synchronous magnetic resistance motor according to claim 5, it is characterised in that:Multigroup cage grooves(55)In turn Sub- punching(5)On be circumferentially distributed and be located at rotor punching(5)Outside;Same fan ring region(51)It is interior, one group of cage grooves(55)Bag Include along inclination angle section(54)Stretch out the short groove that direction is set(551)Be arranged at fan ring region(51)The elongated slot of center line both sides (552).
7. self-starting synchronous magnetic resistance motor according to claim 6, it is characterised in that:The elongated slot(552)It is connected by two Straightway composition, wherein a straightway and same fan ring region(51)Interior parallel-segment(53)It is parallel.
8. the self-starting synchronous magnetic resistance motor according to any one of claim 6-7, it is characterised in that:The magnetic flux barrier Groove(52)And cage grooves(55)Four groups are equipped with, forms four fan ring regions respectively(51)And fan ring region with this(51)It is corresponding Magnetic pole;Two adjacent groups magnetic flux intercepting groove(52)In rotor punching(5)Upper asymmetric setting.
CN201721481822.1U 2017-11-08 2017-11-08 A kind of self-starting synchronous magnetic resistance motor of the rotor core containing unsymmetric structure Active CN207320974U (en)

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CN201721481822.1U CN207320974U (en) 2017-11-08 2017-11-08 A kind of self-starting synchronous magnetic resistance motor of the rotor core containing unsymmetric structure

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CN201721481822.1U CN207320974U (en) 2017-11-08 2017-11-08 A kind of self-starting synchronous magnetic resistance motor of the rotor core containing unsymmetric structure

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020253198A1 (en) 2019-06-19 2020-12-24 珠海格力电器股份有限公司 Rotor structure of direct start-up synchronuous reluctance motor and motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020253198A1 (en) 2019-06-19 2020-12-24 珠海格力电器股份有限公司 Rotor structure of direct start-up synchronuous reluctance motor and motor

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Address after: 312300 economic development zone, Shangyu District, Zhejiang, Shaoxing

Patentee after: Wolong Electric Drive Group Co., Ltd.

Address before: 312300 economic development zone, Shangyu District, Zhejiang, Shaoxing

Patentee before: Wolong Electric Group Co., Ltd.