CN106849576A - A kind of high-starting torque cage-type asynchronous motor rotor punching - Google Patents
A kind of high-starting torque cage-type asynchronous motor rotor punching Download PDFInfo
- Publication number
- CN106849576A CN106849576A CN201710177415.XA CN201710177415A CN106849576A CN 106849576 A CN106849576 A CN 106849576A CN 201710177415 A CN201710177415 A CN 201710177415A CN 106849576 A CN106849576 A CN 106849576A
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- China
- Prior art keywords
- rotor
- slot
- groove
- asynchronous motor
- shape
- 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.)
- Pending
Links
- 238000004080 punching Methods 0.000 title claims abstract description 34
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 238000004804 winding Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- 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
- H02K17/20—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors having deep-bar rotors
-
- 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
- H02K17/18—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors having double-cage or multiple-cage rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Induction Machinery (AREA)
Abstract
The present invention relates to a kind of high-starting torque cage-type asynchronous motor rotor punching, mainly include：Circular rotor punching body, slot shape of rotor, rotor bar and slot wedge, slot shape of rotor is uniformly located on the excircle of rotor punching body, slot shape of rotor includes the first rotor groove profile and the second slot shape of rotor, the first rotor groove profile and the second slot shape of rotor are spaced apart, rotor bar includes the first rotor sliver and the second rotor bar, the first rotor sliver is placed in the first rotor groove profile, second rotor bar is placed in the second slot shape of rotor, slot wedge is embedded in the second slot shape of rotor and the second rotor bar is encapsulated in the second slot shape of rotor, depth of the depth of the second slot shape of rotor more than the first rotor groove profile.The present invention is effectively improved the power factor of current-displacement motor, the detent torque of motor is effectively increased while restrictions motor starting current, and can keep the stabilization of power network.
Description
Technical field
The present invention relates to motor manufacture field, and in particular to a kind of high-starting torque cage-type asynchronous motor rotor punching
Piece.
Background technology
Motor has quite widely should in the industry as the basic device that electric energy is mutually converted with mechanical energy is realized
With particularly asynchronous motor.The startup method of asynchronous motor typically has two kinds, that is, directly initiate, reduced-voltage starting.Work as use
When directly initiating, very big starting current can be produced to impact, when motor no-load is started, starting current can reach motor volume
Determine 6 times of electric current or so, electric current, can be to electronic up to 10 times or so of motor rated current when motor bringing onto load is started
Power network and motor where machine cause very big impact in itself.For power network, it is possible to cause larger electric network voltage
Drop, so as to influence to be connected in parallel on the normal operation of other equipment on power network.And for motor in itself for, excessive rush of current
Also winding can be made acutely to generate heat, making the insulating properties of winding reduces, so as to influence the service life of motor.When using reduced-voltage starting
When, in initial start stage by motor institute making alive is low, the detent torque of motor is diminished, so as to cause motor start-up mistake
Can not be with heavy load starting in journey.
Common cage type asynchronous motor can only take reduced-voltage starting method, its object is to reduce starting current, but simultaneously
Detent torque is also reduced, therefore is adapted only to the occasion of unloaded or light-load starting.In order to improve detent torque, it is special to occur in that
Current-displacement motor, but its rotor leakage reactance becomes big, reduces motor power factor.
The content of the invention：
The present invention is to overcome drawbacks described above, there is provided a kind of starting current is small, while detent torque high start torque cage high
Type asynchronous motor rotor punching.
The technical solution adopted by the present invention is：A kind of high-starting torque cage-type asynchronous motor rotor punching, including：Circle
The rotor punching body of ring-type, slot shape of rotor, rotor bar and slot wedge, slot shape of rotor are uniformly located at the cylindrical of rotor punching body
Zhou Shang, the slot shape of rotor includes the first rotor groove profile and the second slot shape of rotor, the first rotor groove profile and the second rotor slot
Type is spaced apart, and the rotor bar includes the first rotor sliver and the second rotor bar, and the first rotor sliver is placed in the
In one slot shape of rotor, second rotor bar is placed in the second slot shape of rotor, and the slot wedge is embedded in the second slot shape of rotor by the
Two rotor bars are encapsulated in the second slot shape of rotor, the depth of the depth more than the first rotor groove profile of second slot shape of rotor.
Preferably, the first rotor groove profile is round half closed slot, including the first rectangle being interconnected from outside to inside is opened
Mouth and excellent arc groove.
Preferably, the depth of first rectangular aperture is with width ratio：h2/b0=1/2.
Preferably, the second slot shape of rotor includes slot wedge groove and rectangular aperture groove interconnected from outside to inside.
Preferably, the second interconnected from inside to outside rectangular aperture of the slot wedge groove and sidewall notches are constituted.
Preferably, the depth of the slot wedge groove is with width ratio：h0/bs=1/3.
Preferably, the depth of the rectangular aperture groove is with width ratio：h1/bs=12.
Preferably, sidewall notches one side vertical sectional shape is isosceles triangle.
Preferably, the shape of the first rotor sliver matches with the first rotor groove profile；Second rotor bar
Shape matches with rectangular aperture groove.
Preferably, the rotor bar uses red copper sliver or aluminium sliver.
The beneficial effects of the invention are as follows：Rotor punching uses the structure of the first rotor groove profile and the second slot shape of rotor, effectively
Improve the power factor of common current-displacement motor, make the operation of motor more efficient, in restrictions motor starting current
While effectively increase the detent torque of motor, meet the heavy load starting requirement of motor, and maintain power network
Stabilization.
Brief description of the drawings：
Fig. 1 is structural representation of the invention；
Fig. 2 is the partial enlargement structural representation that the present invention is used cooperatively with rotor bar and slot wedge；
Fig. 3 is the structural representation of the first rotor groove profile；
Fig. 4 is the structural representation of the second slot shape of rotor；
Wherein：1. rotor punching body, 2. the first rotor groove profile, 3. the second slot shape of rotor, 4. the first rectangular aperture, 5. excellent
Arc groove, 6. slot wedge groove, 7. rectangular aperture groove, 8. the first rotor sliver, 9. the second rotor bar, 10. slot wedge, 11. side walls
Groove, 12. second rectangular apertures.
Specific embodiment：
Referring to Figures 1 and 2, a kind of high-starting torque cage-type asynchronous motor rotor punching of the invention, including：It is circular
Rotor punching body 1 rotor bar and slot wedge 10 that are used cooperatively with it, it is uniform on the excircle of rotor punching body 1
Punching has slot shape of rotor, and the slot shape of rotor includes the slot shape of rotor 3 of the first rotor groove profile 2 and second, the first rotor groove profile 2
And second keep a determining deviation between slot shape of rotor 3, it is evenly spaced apart to be distributed on the excircle of rotor punching body 1.With turn
The rotor bar that sub- punching body 1 is used cooperatively uses red copper sliver or aluminium sliver, the rotor bar to be led including the first rotor
The rotor bar 9 of bar 8 and second, the first rotor sliver 8 is embedded in the first rotor groove profile 2, and shape and the first rotor groove
Type 2 matches；Second rotor bar 9 is embedded in the second slot shape of rotor 3, and the slot wedge 10 is located at the second rotor bar 9
Above, the second rotor bar 9 is encapsulated in the second slot shape of rotor 3, the shape that the rotor bar 9 of slot wedge 10 and second is constituted with
Second slot shape of rotor 3 matches.
The first rotor groove profile 2 is round half closed slot as shown in Figure 3 and Figure 4, from outside to inside the first interconnected square
Shape opening 4 and excellent arc groove 5, the depth h of first rectangular aperture 42With width b0Than for：h2/b0=1/2；Described second
Slot shape of rotor 3 includes slot wedge groove 6 and rectangular aperture groove 7 interconnected from outside to inside, and the slot wedge groove 6 is mutually interconnected from inside to outside
The second logical rectangular aperture 12 and sidewall notches 11 are constituted, the depth h of the slot wedge groove 60With width bsThan for：h0/bs=1/3,
The depth h of the rectangular aperture groove 71With width bsThan for：h1/bs=12, the unilateral vertical sectional shape of sidewall notches 11 for etc.
Lumbar triangle shape, the sidewall notches 11 are set for left and right, and symmetrical relative to the center line of slot wedge groove 6.The slot wedge 10 is embedded
In slot wedge groove 6, and shape matches with slot wedge groove 6.
The course of work：
When using, the rotor bar 9 of the first rotor sliver 8 and second is first separately mounted to the first rotor groove profile 2 and second
In slot shape of rotor 3, the second rotor bar 9 is encapsulated in the rectangular aperture groove 7 of the second slot shape of rotor 3, then slot wedge 10 is arranged on
In slot wedge groove 6, prevent the second rotor bar 9 from removing.The asynchronous motor worked using this rotor punching body 1, it is and traditional
The slot shape of rotor of deep slot type cage type asynchronous motor all using deep, compare by narrow rotor slot, using slot shape of rotor of the invention
Dimension scale, the groove leakage reactance of the groove leakage reactance less than the second slot shape of rotor 3 of its first rotor groove profile 2, total groove leakage reactance reduces, makes electronic
The leakage reactance of machine winding diminishes, and then can effectively improve the power factor of motor running.Worked using this rotor punching body 1
Asynchronous motor, for the second rotor bar 9 in rectangular aperture groove 7, on startup, rotor current frequency is high, and rotor is led
Bar leakage reactance is the major part of the impedance of the second rotor bar 9.Turn because the leakage reactance of the rotor bar of slot shape of rotor bottom is more than
The leakage reactance of pilot trench type opening portion rotor bar, electric current in rotor bar and leakage reactance are inversely proportional distribution；Rotor bar is turning
The leakage reactance of the opening portion of pilot trench type is small, and the electric current for flowing through is just larger.So, most of electric current will focus on rotor and lead during startup
The top of bar, forms the kelvin effect of electric current, and the net sectional area equivalent to rotor bar reduces, and increases the effective resistance of rotor
Greatly, so as to reduce starting current, detent torque is increased.So using this punching body 1 work asynchronous motor not only
Can on startup, restrictions motor starting current can simultaneously be effectively increases the detent torque of motor, meets motor
Heavy load starting, and be effectively improved using the present invention provide rotor punching body 1 motor power factor, make
The operational efficiency of motor is significantly improved.
Claims (10)
1. a kind of high-starting torque cage-type asynchronous motor rotor punching, including：Circular rotor punching body (1), rotor
Groove profile, rotor bar and slot wedge (10), slot shape of rotor are uniformly located on the excircle of rotor punching body (1), it is characterised in that：
The slot shape of rotor includes the first rotor groove profile (2) and the second slot shape of rotor (3), the first rotor groove profile (2) and second turn
Pilot trench type (3) is spaced apart, and the rotor bar includes the first rotor sliver (8) and the second rotor bar (9), described first turn
Sub- sliver (8) is placed in the first rotor groove profile (2), and second rotor bar (9) is placed in the second slot shape of rotor (3), described
Be encapsulated in second rotor bar (9) in the second slot shape of rotor (3) by embedded second slot shape of rotor (3) of slot wedge (10), and described second
Depth of the depth of slot shape of rotor (3) more than the first rotor groove profile (2).
2. a kind of high-starting torque cage-type asynchronous motor rotor punching as claimed in claim 1, it is characterised in that：Described
One slot shape of rotor (2) is round half closed slot, including interconnected from outside to inside the first rectangular aperture (4) and excellent arc groove
(5)。
3. a kind of high-starting torque cage-type asynchronous motor rotor punching as claimed in claim 2, it is characterised in that：Described
The depth of one rectangular aperture (4) is with width ratio：h2/b0=1/2.
4. a kind of high-starting torque cage-type asynchronous motor rotor punching as claimed in claim 1, it is characterised in that：Second turn
Pilot trench type (3) includes interconnected from outside to inside slot wedge groove (6) and rectangular aperture groove (7).
5. a kind of high-starting torque cage-type asynchronous motor rotor punching as claimed in claim 4, it is characterised in that：The groove
Wedge groove (6) the second rectangular aperture (12) interconnected from inside to outside and sidewall notches (11) are constituted.
6. a kind of high-starting torque cage-type asynchronous motor rotor punching as claimed in claim 4, it is characterised in that：The groove
The depth of wedge groove (6) is with width ratio：h0/bs=1/3.
7. a kind of high-starting torque cage-type asynchronous motor rotor punching as claimed in claim 4, it is characterised in that：The square
The depth of shape open slot (7) is with width ratio：h1/bs=12.
8. a kind of high-starting torque cage-type asynchronous motor rotor punching as described in claim 5-7 is any, it is characterised in that：
Sidewall notches (11) one side vertical sectional shape is isosceles triangle.
9. a kind of high-starting torque cage-type asynchronous motor rotor punching as claimed in claim 8, it is characterised in that：Described
The shape of one rotor bar (8) matches with the first rotor groove profile (2)；The shape of second rotor bar (9) is opened with rectangle
Mouth groove (7) matches.
10. a kind of high-starting torque cage-type asynchronous motor rotor punching as claimed in claim 9, it is characterised in that：It is described
Rotor bar uses red copper sliver or aluminium sliver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710177415.XA CN106849576A (en) | 2017-03-23 | 2017-03-23 | A kind of high-starting torque cage-type asynchronous motor rotor punching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710177415.XA CN106849576A (en) | 2017-03-23 | 2017-03-23 | A kind of high-starting torque cage-type asynchronous motor rotor punching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106849576A true CN106849576A (en) | 2017-06-13 |
Family
ID=59129583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710177415.XA Pending CN106849576A (en) | 2017-03-23 | 2017-03-23 | A kind of high-starting torque cage-type asynchronous motor rotor punching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106849576A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107896042A (en) * | 2017-12-15 | 2018-04-10 | 东方电气集团东方电机有限公司 | A kind of induction machine cage type rotor structure |
| CN110994830A (en) * | 2019-12-31 | 2020-04-10 | 泛仕达机电股份有限公司 | Double-cage rotor punching sheet, double-cage rotor and motor |
| CN111404296A (en) * | 2020-04-17 | 2020-07-10 | 重庆川仪速达机电有限公司 | High-starting-torque rotor structure and manufacturing method |
| TWI806115B (en) * | 2020-09-25 | 2023-06-21 | 日商日立產機系統股份有限公司 | Rotor, cage induction motor and drive system |
| WO2023168915A1 (en) * | 2022-03-09 | 2023-09-14 | Jing-Jin Electric Technologies Co., Ltd. | Induction motor rotor and induction motor having the same |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1429826A (en) * | 1972-10-06 | 1976-03-31 | Acomel Sa | Motors |
| CN2655497Y (en) * | 2003-11-04 | 2004-11-10 | 上海海洲微型电机制造有限公司 | Permanent magnetic synchronous motor rotor |
| CN102780370A (en) * | 2012-08-15 | 2012-11-14 | 中电电机股份有限公司 | Rotor core of three-phase asynchronous motor of coal mill |
| CN104242585A (en) * | 2014-09-16 | 2014-12-24 | 温岭市东菱电机有限公司 | Low-speed adjusting constant-torque permanent magnet synchronous efficient electromotor |
| CN204216686U (en) * | 2014-11-28 | 2015-03-18 | 卧龙电气集团股份有限公司 | A kind of Novel motor rotor punching |
| CN204316291U (en) * | 2015-01-16 | 2015-05-06 | 广东美芝制冷设备有限公司 | Rotor |
| CN205092676U (en) * | 2015-11-16 | 2016-03-16 | 广东美芝制冷设备有限公司 | Rotor and compressor having same |
-
2017
- 2017-03-23 CN CN201710177415.XA patent/CN106849576A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1429826A (en) * | 1972-10-06 | 1976-03-31 | Acomel Sa | Motors |
| CN2655497Y (en) * | 2003-11-04 | 2004-11-10 | 上海海洲微型电机制造有限公司 | Permanent magnetic synchronous motor rotor |
| CN102780370A (en) * | 2012-08-15 | 2012-11-14 | 中电电机股份有限公司 | Rotor core of three-phase asynchronous motor of coal mill |
| CN104242585A (en) * | 2014-09-16 | 2014-12-24 | 温岭市东菱电机有限公司 | Low-speed adjusting constant-torque permanent magnet synchronous efficient electromotor |
| CN204216686U (en) * | 2014-11-28 | 2015-03-18 | 卧龙电气集团股份有限公司 | A kind of Novel motor rotor punching |
| CN204316291U (en) * | 2015-01-16 | 2015-05-06 | 广东美芝制冷设备有限公司 | Rotor |
| CN205092676U (en) * | 2015-11-16 | 2016-03-16 | 广东美芝制冷设备有限公司 | Rotor and compressor having same |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107896042A (en) * | 2017-12-15 | 2018-04-10 | 东方电气集团东方电机有限公司 | A kind of induction machine cage type rotor structure |
| CN110994830A (en) * | 2019-12-31 | 2020-04-10 | 泛仕达机电股份有限公司 | Double-cage rotor punching sheet, double-cage rotor and motor |
| CN111404296A (en) * | 2020-04-17 | 2020-07-10 | 重庆川仪速达机电有限公司 | High-starting-torque rotor structure and manufacturing method |
| TWI806115B (en) * | 2020-09-25 | 2023-06-21 | 日商日立產機系統股份有限公司 | Rotor, cage induction motor and drive system |
| WO2023168915A1 (en) * | 2022-03-09 | 2023-09-14 | Jing-Jin Electric Technologies Co., Ltd. | Induction motor rotor and induction motor having the same |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20170613 |