CN106856359A - One kind distribution coiling electric motor - Google Patents
One kind distribution coiling electric motor Download PDFInfo
- Publication number
- CN106856359A CN106856359A CN201510906839.6A CN201510906839A CN106856359A CN 106856359 A CN106856359 A CN 106856359A CN 201510906839 A CN201510906839 A CN 201510906839A CN 106856359 A CN106856359 A CN 106856359A
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- China
- Prior art keywords
- coil
- electric motor
- coiling electric
- coiling
- motor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Windings For Motors And Generators (AREA)
Abstract
The present invention provides a kind of distribution coiling electric motor, including stator and rotor, and the number of poles p of the rotor and slot number s of stator meets relationship below：P=2k and s=m*p, wherein k, m are positive integer, and coil group is formed by differential concatenation per mutually adjacent coil.The distribution coiling electric motor that the present invention is provided, coil group is formed per mutually adjacent coil by differential concatenation, it is to avoid the situation that in-phase coil end interlocks, the copper loss and iron loss of reduction motor, raising electric efficiency；The method of two strands or strand copper wire parallel connection coiling can effectively reduce end height, reduce end coil length, improve electric efficiency；Using multiple neutral points, it is to avoid two strands or strand copper wire and around when, same pad has excessive the end of a thread, and this can reduce difficulty of the motor when manufacturing, it is to avoid the phenomenon of the end of a thread welding mistake occurs.
Description
Technical field
The present invention relates to machine field, and in particular to one kind distribution coiling electric motor.
Background technology
Existing motor is divided into two kinds of motors according to the difference of coiling form：Distribution coiling electric motor and concentration coiling
Motor, distribution coiling electric motor divides monolayer distribution coiling electric motor and double-deck distribution coiling electric motor again.
Concentrate coiling electric motor the characteristics of have end coil short, this causes that the efficiency of motor is higher, but concentrate around
There is vibration greatly in line motor, the big shortcoming of noise.And be distributed coiling electric motor vibration and noise it is relatively preferable, but
It is that existing distribution winding mode has that end coil is long, the shortcoming that in-phase coil end interlocks.This causes distribution
The end coil resistance of coiling electric motor is very big, limits electric efficiency.
End coil does not produce useful excitation field in motor operation, conversely, end coil can increase motor
Coil resistance, copper loss when making motor operation rises, and end coil can produce end in motor operation
Leakage field phenomenon, rises stator end temperature and iron loss, and this all can reduce the performance of motor.
In general, being distributed coiling electric motor in the prior art, two coil interleaved forwards connect to form coil group, together
The coil group serial or parallel connection of phase is to form phase coil.
More specifically, a kind of distribution coiling electric motor of prior art as shown in Figure 1, with the distribution of the groove of 6 pole 36 around
As a example by the U phase coils of line motor：From No. 7 groove outlets of No. 1 groove inlet wire, then it is transitioned into No. 8 grooves of No. 2 groove inlet wires
Outlet, forms first coil group；No. 19 groove outlets of No. 13 groove inlet wires are transitioned into, then are transitioned into No. 14 groove inlet wires
No. 20 groove outlets, form the second coil group；..., finally it is connected to neutral point X from No. 32 groove outlets.
With the first coil group of phase, the second coil group ... series connection form U phase coils.
Wherein solid line is coil, and dotted line is transition wire.
The span that coiling is distributed in Fig. 1 is 7, that is, there is end and interlock across 6 stator tooths, and two coils
Situation so that end coil is long, the increase of the coil resistance of motor, copper loss during motor operation is increased, and
And end coil can produce brow leakage phenomenon in motor operation, stator end temperature and iron loss is set to increase, this
The performance of motor will be made to be reduced.
Therefore need to be improved existing distribution coiling electric motor, ensureing that motor operation vibration is small, noise is low
The advantages of while, reduce motor copper loss and iron loss, improve electric efficiency.
The content of the invention
In view of problems of the prior art, it is an object of the invention to provide one kind distribution coiling electric motor, by subtracting
Small distribution coiling electric motor end coil, reduces the copper loss and iron loss of motor, improves electric efficiency.
The present invention provides a kind of distribution coiling electric motor, including stator and rotor, the number of poles p of rotor and the groove of stator
Number s meets relationship below：P=2k and s=m*p, wherein k, m are positive integer, are passed through per mutually adjacent coil
Differential concatenation forms coil group.
Further, coil uses one enamel-covered wire coiling, or uses multiply enamel-cover line parallel coiling.
Further, with the coil group formation phase coil in series or in parallel of phase.
Further, one end of phase coil is connected to neutral point.
Further, the span z of coil group meets relationship below：s/p-1≤z≤s/p+1.
Further, neutral point is one or more.
Further, distribution coiling electric motor is using individual layer or double-deck distribution coiling.
Compared with prior art, the distribution coiling electric motor that the present invention is provided, has the advantages that：
(1) per mutually adjacent coil by differential concatenation formation coil group, it is to avoid what in-phase coil end interlocked
Situation, reduces more than end coil length p/s, and resistance declines more than 10%, reduces the copper loss and iron loss of motor,
Improve electric efficiency；
The method of (2) two strands or strand copper wire parallel connection coiling can effectively reduce end height, reduce end coil
Length, improves electric efficiency；
(3) using multiple neutral points, it is to avoid two strands or strand copper wire and around when, same pad has excessive
The end of a thread, this can reduce difficulty of the motor when manufacturing, it is to avoid the phenomenon of the end of a thread welding mistake occurs.
Brief description of the drawings
Fig. 1 is the schematic diagram for being distributed coiling electric motor in the prior art；
Fig. 2 is the schematic diagram of the distribution coiling electric motor of one embodiment of the present of invention；
Fig. 3 is a kind of coil connection diagram of the distribution coiling electric motor shown in Fig. 2；
Fig. 4 is another coil connection diagram of the distribution coiling electric motor shown in Fig. 2.
Specific embodiment
As shown in Fig. 2 the distribution coiling electric motor of one embodiment of the present of invention, including stator and rotor, rotor
The slot number s of number of poles p and stator meet relationship below：P=2k and s=m*p, wherein k, m are positive integer,
Coil group is formed by differential concatenation per mutually adjacent coil.
The corresponding end coil length that reduces is p/s, and in the present embodiment, end turn is and existing only across 5 stator tooths
The end turn for having technology is compared across 6 teeth, as 6/36=1/6 ≈ 17%.
Coil uses one enamel-covered wire coiling, it would however also be possible to employ multiply enamel-cover line parallel coiling.
With the coil group of phase composition phase coil in series or in parallel, one end of phase coil is connected to neutral point.
The span z of coil group meets relationship below：s/p-1≤z≤s/p+1.
Specifically, as shown in Fig. 2 being with the U phase windings of the groove permagnetic synchronous motor of 6 pole 36 of p=6, s=36
Example：Monolayer distribution coiling, U phase coils include six coils, and each coil spread is z=s/p=36/6=6, point
It is three coil groups, is connected respectively to three neutral points X1, X2, X3.
By taking U phase coils as an example：Two coil 2-7 and 13-8 (forms one from No. 7 groove outlets of No. 2 groove inlet wires
Coil, a coil is formed from No. 8 groove outlets of No. 13 groove inlet wires), differential concatenation forms first coil group, from
No. 8 groove outlet connection neutral point X1.
Two coil 1-32 and 26-31 (forms a coil, from No. 26 from No. 32 groove outlets of No. 1 groove inlet wire
No. 31 groove outlets of groove inlet wire form a coil), differential concatenation forms the second coil group, from No. 31 groove outlets
Connection neutral point X2.
Two coil 14-19 and 25-20 (forms a coil, from 25 from No. 19 groove outlets of No. 14 groove inlet wires
No. 20 groove outlets of number groove inlet wire form a coil), differential concatenation forms tertiary coil group, goes out from No. 20 grooves
Line connection neutral point X2.
In the present embodiment, three coil groups are each connected to three different neutral point X1, X2, X3, each phase in succession
The connection of coil, as shown in Figure 3.
Certainly, three groups of coils can connect same neutral point X, as shown in Figure 4.
In another embodiment, distribution coiling electric motor is using double-deck distribution coiling, by differential concatenation, equally
Distribution coiling electric motor end coil can be reduced, the copper loss and iron loss of motor is reduced, electric efficiency is improved.
The distribution coiling electric motor that the present invention is provided, coil group is formed per mutually adjacent coil by differential concatenation, it is to avoid
The situation that in-phase coil end interlocks, reduces end coil length more than 17%, and resistance declines more than 10%, drop
The copper loss and iron loss of low motor, improve electric efficiency；Two strands or strand copper wire parallel connection coiling method can be effective
End height is reduced, reduces end coil length, improve electric efficiency；Using multiple neutral points, it is to avoid two
Stock or strand copper wire and around when, same pad has excessive the end of a thread, this can reduce motor manufacture when
Difficulty, it is to avoid the end of a thread welding mistake phenomenon occur.
Preferred embodiment of the invention described in detail above.It should be appreciated that the ordinary skill people of this area
Member just can make many modifications and variations without creative work with design of the invention.Therefore, all skill
In art field technical staff under this invention's idea on the basis of existing technology by logic analysis, reasoning or
The available technical scheme of limited experiment, all should be in the protection domain being defined in the patent claims.
Claims (7)
1. a kind of distribution coiling electric motor, including stator and rotor, it is characterised in that the number of poles p of the rotor with it is described
The slot number s of stator meets relationship below：P=2k and s=m*p, wherein k, m are positive integer, per mutually adjacent
Coil forms coil group by differential concatenation.
It is 2. as claimed in claim 1 to be distributed coiling electric motor, it is characterised in that the coil uses one enamel-covered wire coiling,
Or use multiply enamel-cover line parallel coiling.
3. it is as claimed in claim 1 to be distributed coiling electric motor, it is characterised in that with the coil group shape in series or in parallel of phase
Into phase coil.
4. it is as claimed in claim 1 to be distributed coiling electric motor, it is characterised in that one end of the phase coil is connected to neutral point.
5. it is as claimed in claim 1 to be distributed coiling electric motor, it is characterised in that the span z of coil group meets following relation
Formula：s/p-1≤z≤s/p+1.
6. it is as claimed in claim 1 to be distributed coiling electric motor, it is characterised in that neutral point is one or more.
7. it is as claimed in claim 1 to be distributed coiling electric motor, it is characterised in that distribution coiling electric motor uses individual layer or bilayer
Distribution coiling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510906839.6A CN106856359A (en) | 2015-12-09 | 2015-12-09 | One kind distribution coiling electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510906839.6A CN106856359A (en) | 2015-12-09 | 2015-12-09 | One kind distribution coiling electric motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106856359A true CN106856359A (en) | 2017-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510906839.6A Pending CN106856359A (en) | 2015-12-09 | 2015-12-09 | One kind distribution coiling electric motor |
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| Country | Link |
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| CN (1) | CN106856359A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101401281A (en) * | 2006-03-14 | 2009-04-01 | 罗伯特·博世有限公司 | Electrical machine |
| CN102255459A (en) * | 2011-07-29 | 2011-11-23 | 天津大学 | Stator winding connection method for low-voltage high-power multipole multiphase permanent magnet synchronous motor |
| CN102386729A (en) * | 2010-08-30 | 2012-03-21 | 比亚迪股份有限公司 | Coiling method of motor winding and motor |
| CN103762798A (en) * | 2014-02-18 | 2014-04-30 | 苏州爱知高斯电机有限公司 | Method for winding coil of three-phase motor |
| CN104810994A (en) * | 2014-01-25 | 2015-07-29 | 嵊州市精达电机有限公司 | Coiling method of motor stator winding |
| CN105099031A (en) * | 2015-09-11 | 2015-11-25 | 广东美芝制冷设备有限公司 | Three-phase motor and compressor with same |
-
2015
- 2015-12-09 CN CN201510906839.6A patent/CN106856359A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101401281A (en) * | 2006-03-14 | 2009-04-01 | 罗伯特·博世有限公司 | Electrical machine |
| CN102386729A (en) * | 2010-08-30 | 2012-03-21 | 比亚迪股份有限公司 | Coiling method of motor winding and motor |
| CN102255459A (en) * | 2011-07-29 | 2011-11-23 | 天津大学 | Stator winding connection method for low-voltage high-power multipole multiphase permanent magnet synchronous motor |
| CN104810994A (en) * | 2014-01-25 | 2015-07-29 | 嵊州市精达电机有限公司 | Coiling method of motor stator winding |
| CN103762798A (en) * | 2014-02-18 | 2014-04-30 | 苏州爱知高斯电机有限公司 | Method for winding coil of three-phase motor |
| CN105099031A (en) * | 2015-09-11 | 2015-11-25 | 广东美芝制冷设备有限公司 | Three-phase motor and compressor with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 201206 Pudong New Area Jinqiao Ning Road, Shanghai, No. 888 Applicant after: Shanghai Haili Electrical Appliance Co. Ltd. Address before: 201206 Pudong New Area Jinqiao Ning Road, Shanghai, No. 888 Applicant before: Rili Electric Appliance Co., Ltd., Shanghai |
|
| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170616 |
|
| RJ01 | Rejection of invention patent application after publication |