CN104716807B - Cage-shaped brushless double-fed alternating-current motor with heterogeneous rotor - Google Patents
Cage-shaped brushless double-fed alternating-current motor with heterogeneous rotor Download PDFInfo
- Publication number
- CN104716807B CN104716807B CN201510163287.4A CN201510163287A CN104716807B CN 104716807 B CN104716807 B CN 104716807B CN 201510163287 A CN201510163287 A CN 201510163287A CN 104716807 B CN104716807 B CN 104716807B
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- CN
- China
- Prior art keywords
- rotor
- cage
- isomery
- brushless double
- rotor core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 229910052802 copper Inorganic materials 0.000 claims abstract description 25
- 239000010949 copper Substances 0.000 claims abstract description 25
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000004080 punching Methods 0.000 claims abstract description 7
- 238000009413 insulation Methods 0.000 claims description 9
- 238000009826 distribution Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
Abstract
The invention discloses a cage-shaped brushless double-fed alternating-current motor with a heterogeneous rotor structure. The cage-shaped brushless double-fed alternating-current motor is characterized in that a rotor comprises heterogeneous end covers, a rotor iron core and a rotary shaft, wherein all punching pieces of the rotor iron core are provided with a plurality of groove holes, and copper strips are embedded into the groove holes in an insulated manner. In the same quadrant, from the symmetrical axis to the outer edge, the groove holes are distributed in a mode of in-sequence and symmetric increase of the diameter. The heterogeneous end covers are formed by embedding of conductive parts and insulating parts, the positions and the shapes of the two end parts of the conductive parts correspond to the groove holes, and the end parts with the equal diameter in the same quadrant are connected in sequence by a two-two manner. The cage-shaped brushless double-fed alternating-current motor disclosed by the invention has the beneficial effects that the form of combining the heterogeneous end covers and the copper strips of the rotor is adopted, the structure is compact, the connecting strength is enhanced, the problem of looseness and throwing out of connecting guide lines at the end parts of the short-circuit cage-shaped rotor when in high-speed rotation is solved, so that the reliability of the motor is improved; and since the embedded copper strips with different sectional surfaces are adopted, the basic equalization of the currents among different short-circuit windings is ensured, so that the electromagnetic torque provided by all guiding strips is more uniform, and the electromechanical energy conversion efficiency is higher.
Description
Technical field
The present invention relates to alternating current generator, more particularly to a kind of cage modle brushless double feed alternating current generator with isomery rotor.
Background technology
Existing brushless double feed alternating current generator, stator core embeds the different double winding of number of pole-pairs, respectively power
Winding and controling winding, rotor then mainly has wound rotor, cage-type rotor, reluctance rotor or composite rotors structure.In these turns
In minor structure, cage-type rotor is simple due to structure, has obtained increasingly extensive application.At this stage, cage type rotor structure mainly has
Short-circuit cage-type rotor wears the cage-type rotor of copper bar although both structures are similar with routine, but technological requirement has very big difference.
Routine wears the rotor of copper bar without placing slot insulation, all can weld together in rotor tip end ring, and short circuit type cage modle
Rotor must have slot insulation, and also will have good insulation with the end of iron core, and the opening of u-shaped copper bar can be with one
End ring all welds together, and compared with short circuit type cage-type rotor, the cage-type rotor that routine wears copper bar can ensure the equivalent of rotor
Saliency, can improve exert oneself effect and the runnability of motor, but short circuit type cage-type rotor will guarantee when design produces
The reliability connecting, and require contact resistance as little as possible to avoid motor the throwing away of rotor cage bar in high-speed rotation.
For this problem, the present invention combines the advantage of short circuit type rotor and conventional type wears the mentality of designing of copper bar cage-type rotor, adopts
Improve the reliability of short circuit type cage-type rotor with the end ring of isomery while meeting performance requirement.
Content of the invention
The purpose of the present invention is to overcome drawbacks described above, provides a kind of compact conformation, connects reliable and runs torque steadily, machine
The cage modle brushless double feed alternating current generator of the isomery rotor structure of electric energy conversion efficiency high.
The present invention provide the cage modle brushless double feed alternating current generator with isomery rotor, include end cap, rotor core and turn
Axle, each punching of described rotor core is provided with circumferential some slotted eyes, and insulation in described slotted eye is embedded with copper bar, same as
From the axis of symmetry to outer rim in limit, described slotted eye symmetrically increases distribution successively with diameter；Described end cap is isomery end cap, isomery end
Lid is formed by conductive part is nested with insulation division, and described conductive part is bar shaped, the location and shape at its both ends and described slotted eye phase
Corresponding, in same quadrant, diameter identical end is connected successively two-by-two, i.e. each strip width of described conductive part and described rotor
In iron core (7) embed each copper bar diameter correspond to respectively identical；Turning in embedded copper bar and described end cap in described rotor core
The end of sub- copper bar adopts thermal expansion welding procedure to be fitted close.
The present invention has the cage modle brushless double feed alternating current generator of isomery rotor, and wherein said slotted eye is even number, positioned at same
In quadrant, two ends against the axis of symmetry are joined directly together, and remaining end of diameter identical is in that 1/4 annular is connected successively two-by-two.
The present invention has a cage modle brushless double feed alternating current generator of isomery rotor, and each punching of wherein said rotor core is using thick
Spend and be made up of 0.4 millimeter of stalloy.
The present invention has a cage modle brushless double feed alternating current generator of isomery rotor, and the number of wherein said slotted eye and end is by turning
Square size determines.
The beneficial effect that the present invention has the cage modle brushless double feed alternating current generator of isomery rotor is: combines short circuit type rotor
Advantage and conventional type wear the mentality of designing of copper bar cage-type rotor, in the form of isomery end cap and rotor bar combine, knot
Structure is compact, strengthens bonding strength, solves short-circuit cage modle rotor tip connecting wire and loosens asking of throwing away in high-speed rotation
Topic, improves motor reliability, simultaneously because using different cross-sectional embedded copper bar it is ensured that electricity between different short-circuited winding
Stream is of substantially equal, makes the electromagnetic torque that each sliver provides evenly, energy converting between mechanical is in hgher efficiency.
Brief description
Fig. 1 has the assembling schematic diagram of the cage modle brushless double feed alternating current generator of isomery rotor for the present invention；
Fig. 2 is the structural representation of rotor iron core lamination；
Fig. 3 is the structural representation of end cap.
Specific embodiment
For making the purpose of the present invention, technical scheme and effect clearer, clear and definite, referring to the drawings one is entered to the present invention
Step describes in detail.It should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not used to limit this
Bright.
With reference to Fig. 1, the present invention has the cage modle brushless double feed alternating current generator of isomery rotor, including end cap 6, rotor core 7
With rotating shaft 8.Rotating shaft 8 is fixed by bonded mode with rotor core 7.
With reference to Fig. 2, each punching of rotor core 7 is provided with circumferential some slotted eyes 4, and insulation in slotted eye 4 is embedded with copper
Bar, from the axis of symmetry to outer rim in same quadrant, slotted eye 4 symmetrically increases distribution successively with diameter.The each punching of rotor core 7 adopts
Thickness is made up of 0.4 millimeter of stalloy, and multilamellar stalloy mutually laminates formation rotor core.The diameter of slotted eye 4 is according to sliver
Size determine, should fully insulate between sliver and rotor core.
With reference to Fig. 3, end cap 6 is isomery end cap, and isomery end cap is formed by conductive part 1 is nested with insulation division 2, and conductive part 1 is
Bar shaped, the location and shape at its both ends are corresponding with slotted eye 4, and in same quadrant, diameter identical end 3 is connected successively two-by-two,
I.e. each strip width of conductive part 1 is corresponding identical respectively with the diameter embedding each copper bar in rotor core 7.
In the embodiment of cage modle brushless double feed alternating current generator that the present invention has isomery rotor, slotted eye 4 is even number, 6
In end 3, in same quadrant, 2 ends 3 against the axis of symmetry are joined directly together, remaining 4 ends 3 diameter identical according to
Secondary is in that 1/4 annular is connected two-by-two.The number of slotted eye 4 and end 3 is determined by level of torque.
In rotor core 7, embedded copper bar and the rotor bar end in isomery end cap 6 adopt thermal expansion welding procedure tight
Cooperation.
The explanation present invention has the working method of the cage modle brushless double feed alternating current generator of isomery rotor below.
The embedded copper bar in slotted eye 4 of rotor core 7 constitutes short-circuited winding closed-loop path, groove with the conductive part 1 in end cap 6
The diameter of hole 4 and end 3 is matched with the diameter of embedded copper bar.Because embedded copper bar symmetrically increases distribution successively with diameter, short
The surrounded size in road winding closed-loop path changes with the sectional area embedding each copper bar.It is short that sliver cross-sectional area is inversely proportional to closure
The encirclement area of road winding, but minimum area should ensure that and flows through the maximum allowing electric current.This ensures that, different short circuits around
The electric current flowing through between group is of substantially equal, makes motor rotation more steady, the electromagnetic torque providing evenly, energy converting between mechanical efficiency
Higher.The number of slotted eye 4 and end 3 and short-circuited winding closed-loop path can determine according to actual torque size.
In rotor core 7, embedded copper bar and the rotor bar end 3 in end cap 6 adopt tight fit, improve connection strong
Degree, solves the problems, such as that short-circuit cage modle rotor tip connecting wire loosens in high-speed rotation and throws away.
Embodiment described above is only that the preferred embodiment of the present invention is described, the not structure to the present invention
Think and scope is defined.On the premise of without departing from design concept of the present invention, the technology to the present invention for this area ordinary person
Various modifications and improvement that scheme is made, all should drop into protection scope of the present invention, the technology contents that the present invention is claimed,
All record in detail in the claims.
Claims (4)
1. a kind of cage modle brushless double feed alternating current generator with isomery rotor, including end cap (6), rotor core (7) and rotating shaft
(8) it is characterised in that: a rectangular coordinate system is set on the circumferential section of described rotor core (7), with this rectangular coordinate system each
The angular bisector of quadrant is the axis of symmetry, and each punching of described rotor core (7) is provided with circumferential some slotted eyes (4), institute
State insulation in slotted eye (4) and be embedded with copper bar, along the circumference of described rotor core (7) in same quadrant, outside by the axis of symmetry
Edge deviates, and described slotted eye (4) symmetrically increases distribution successively with diameter；Described end cap (6) is isomery end cap, and isomery end cap is by conduction
Portion (1) is nested with insulation division (2) to be formed, and described conductive part (1) is bar shaped, the location and shape at its both ends and described slotted eye
(4) corresponding, in same quadrant, diameter identical end (3) is connected successively two-by-two, i.e. each strip width of described conductive part (1)
Corresponding identical respectively with the diameter embedding each copper bar in described rotor core (7)；Embedded copper bar and institute in described rotor core (7)
The end stating the conductive part (1) in end cap (6) adopts thermal expansion welding procedure to be fitted close.
2. the cage modle brushless double feed alternating current generator with isomery rotor according to claim 1 it is characterised in that: described groove
Hole (4) is even number, and in same quadrant, two ends (3) against the axis of symmetry are joined directly together, remaining end of diameter identical
Portion (3) is in that 1/4 annular is connected successively two-by-two.
3. the cage modle brushless double feed alternating current generator with isomery rotor according to claim 1 and 2 it is characterised in that: institute
State each punching of rotor core (7) to be made up of 0.4 millimeter of stalloy using thickness.
4. the cage modle brushless double feed alternating current generator with isomery rotor according to claim 3 it is characterised in that: described groove
The number of hole (4) and end (3) is determined by level of torque.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510163287.4A CN104716807B (en) | 2015-04-08 | 2015-04-08 | Cage-shaped brushless double-fed alternating-current motor with heterogeneous rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510163287.4A CN104716807B (en) | 2015-04-08 | 2015-04-08 | Cage-shaped brushless double-fed alternating-current motor with heterogeneous rotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104716807A CN104716807A (en) | 2015-06-17 |
| CN104716807B true CN104716807B (en) | 2017-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510163287.4A Active CN104716807B (en) | 2015-04-08 | 2015-04-08 | Cage-shaped brushless double-fed alternating-current motor with heterogeneous rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104716807B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108429402A (en) * | 2018-05-21 | 2018-08-21 | 广东上水能源科技有限公司 | A kind of motor cooling based on coolant liquid |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6459189B1 (en) * | 2000-05-08 | 2002-10-01 | Emerson Electric Co. | Diecast rotor with compound short-circuit loops and method of manufacture |
| CN2588650Y (en) * | 2002-12-27 | 2003-11-26 | 河北工业大学电工厂 | Retrofit brushless double-feeding motor |
| CN103390946A (en) * | 2013-07-22 | 2013-11-13 | 江苏银河长征风力发电设备有限公司 | Brushless double-fed wind turbine generator with high power density |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4008314B2 (en) * | 2002-08-30 | 2007-11-14 | 三菱重工業株式会社 | High speed induction motor |
| JP5451985B2 (en) * | 2008-05-15 | 2014-03-26 | 東芝産業機器製造株式会社 | Cage type rotor, manufacturing method thereof and manufacturing apparatus |
-
2015
- 2015-04-08 CN CN201510163287.4A patent/CN104716807B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6459189B1 (en) * | 2000-05-08 | 2002-10-01 | Emerson Electric Co. | Diecast rotor with compound short-circuit loops and method of manufacture |
| CN2588650Y (en) * | 2002-12-27 | 2003-11-26 | 河北工业大学电工厂 | Retrofit brushless double-feeding motor |
| CN103390946A (en) * | 2013-07-22 | 2013-11-13 | 江苏银河长征风力发电设备有限公司 | Brushless double-fed wind turbine generator with high power density |
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| Publication number | Publication date |
|---|---|
| CN104716807A (en) | 2015-06-17 |
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Effective date of registration: 20231124 Address after: Q1181, Room 103, No. 137 Heguang Road, Tianhe District, Guangzhou City, Guangdong Province, 510000 Patentee after: Guangzhou Yizhi Environmental Protection Technology Co.,Ltd. Address before: Room 171, No. 225 Avenue, Guangzhou Economic and Technological Development Zone, Guangdong Province, 510630 Patentee before: GUANGDONG SHANGSHUI ENERGY TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |