CN106787335A - A kind of mixed conductor winding construction and the motor with the structure and its application - Google Patents
A kind of mixed conductor winding construction and the motor with the structure and its application Download PDFInfo
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- CN106787335A CN106787335A CN201611164782.8A CN201611164782A CN106787335A CN 106787335 A CN106787335 A CN 106787335A CN 201611164782 A CN201611164782 A CN 201611164782A CN 106787335 A CN106787335 A CN 106787335A
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- conductor
- winding construction
- resistivity
- motor
- high resistivity
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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
- H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Windings For Motors And Generators (AREA)
Abstract
The invention discloses a kind of mixed conductor winding construction, the conductor winding structure includes：After low resistivity conductor and high resistivity conductor, the low resistivity conductor and high resistivity conductor are bent into hairpin respectively, in insertion or embedded stator slot (1,2)；Wherein, the low resistivity conductor is arranged at the notch of the stator (1,2), and the high resistivity conductor is arranged at the bottom land of the stator (1,2)；And end connection ring, for realizing being fixedly connected for the low resistivity conductor and high resistivity end conductor, so as to form mixed conductor winding construction.The invention also discloses a kind of motor with the winding construction.The invention also discloses a kind of electric automobile with the motor.When the present invention can effectively reduce high speed operation of motor at notch conductor A.C.power loss, reduce the local temperature rise at notch conductor, and when having taken into account motor low cruise, the big problem of DC losses improves the operational efficiency of motor.
Description
Technical field
The invention belongs to electric machine conductors winding technique field, more particularly, to a kind of mixed conductor winding construction and tool
There are motor and its application of the winding construction.
Background technology
Increasingly serious with climatic deterioration and energy shortage, continuable Green Travel scheme receives environmentalist's
Strongly praise highly and government widelys popularize.Relative to conventional fuel oil automobile, electric automobile is because with zero-emission or discharging small excellent
Put and receive much concern.Development New Energy Industry, wideling popularize electric automobile has turned into country's mitigation environmental pollution and has realized automobile
The important measure that industry bend is overtaken other vehicles.However, electric automobile is relative to conventional fuel oil automobile, there is expensive, course continuation mileage
Low problem.Therefore electric automobile production cost is reduced, mitigates complete vehicle weight, drive-train efficiency is improved, so as to increase continuation of the journey
Mileage, further development and popularization to electric automobile have great significance.
Motor as electric automobile one of " three big electricity " (battery, automatically controlled, motor), its weight, volume and cost
Must control within the scope of certain, more spaces to be provided with for battery and automotive interior, thus improve course continuation mileage with
Enhancing riding comfort, and the cost of whole system is reduced, improve its competitiveness in motor market.With electronic vapour
The increase of car sales volume, the market demand of motor is extremely vigorous, batch automatic production motor, using scale effect and
Automatic technology reduction motor manufacturing cost, becoming major motor manufacturing manufacturers strengthens the important way of its market competitiveness
Footpath.But conventional ADS driving motor stator winding uses enamel-covered wire, a coil to include many rounded copper wires, stator needs craft
Offline, when offline, wire is needed by narrow and small stator channel opening, and this causes that inserting-coil process time cost is very high, governs electricity
The production efficiency and production capacity of machine manufacturer.In addition, conventional motors winding overhang is more long, End winding be closely wound together, it is necessary to
Increase that End winding is alternate and layer insulation, therefore radiating is difficult, insulating materials consumption is big, high cost.And, traditional winding is adopted
With enamel-covered wire, this causes that motor copper factor is not high, and winding heat dispersion is deteriorated in copper loss increase and groove.In addition, conventional motors
Winding overhang is more long, and radiating is difficult, and these shortcomings cause to become one extremely using new winding construction, simplified lower line technology
Urgent thing.
In order to solve the problems, such as that traditional winding hand insertion is difficult, it is very big that rectangle copper conductor winding causes electric machine manufacturer
Interest.The trendy electric automobile of major domestic and international vehicle factories also begins to large-scale use rectangle copper conductor winding.It is by one
Root copper conductor is twisted into hairpin, is inserted into or by notch insertion stator slot, last each copper conductor end is according to certain
The mode of connection end welding and formed.Its winding conductor arrangement is as shown in Figure 1.This technical scheme is easy to automation offline,
Copper factor can be increased, its end is short so that motor is more compact, its winding Equivalent Thermal Conductivities is larger in addition, End winding
Contactless or contact is few between conductor, therefore, overhang insulation consumption is few, and insulation costs lower, in addition, end conductor and air
Contact area and its heat radiation area are big, therefore hot property is more preferable.
However, rectangular conductor winding conductor sectional area is big, in high speed operation of motor, very big exchange copper loss can be produced,
Especially at stator rabbet position, exchange copper loss can be bigger, and this can reduce electric efficiency, and may cause the part of winding
Overheat and insulation damages.In addition, compared to traditional enamel-cover line winding, although motor copper factor increases, the consumption of copper is more,
Because the density of copper is very big, price is also more expensive, and therefore the weight and cost of motor can also rise.Therefore, how rectangle is being used
While copper conductor winding, its high speed alternator driven copper loss is reduced, become a challenge of Winding Design.
The content of the invention
For the disadvantages described above or Improvement requirement of prior art, the present invention provides a kind of mixed conductor winding construction and has
The motor of the winding construction, its winding combines conductor electricity by the way of low resistivity conductor and high resistivity conductor combination
The resistance rate advantage for reducing direct current copper loss and conductor resistance rate suppression A.C.power loss high.
To achieve the above object, according to one aspect of the present invention, there is provided a kind of mixed conductor winding construction, its feature exists
In the conductor winding structure includes：Low resistivity conductor and high resistivity conductor, the low resistivity conductor and high resistivity are led
After body is bent into hairpin respectively, in insertion or embedded stator slot；
Wherein, the low resistivity conductor is arranged at the notch of the stator, and the high resistivity conductor is arranged at
At the bottom land of the stator；And
End connection ring, for realizing being fixedly connected for the low resistivity conductor and high resistivity end conductor, so that
Form mixed conductor winding construction.
Further, the end connection ring includes end plate, neutral point connection ring and three-phase windings connection ring, wherein, institute
State neutral point connection ring and three-phase windings connection ring is fixed in the fluting of end plate.
Further, the three-phase windings connection ring is provided with end-fitting, for as the high resistivity conductor and
The transit joint of low-resistivity three-phase windings connection ring, prevents it from producing electrochemical corrosion.
Preferably, multilayer low resistivity conductor and high resistivity conductor are can be inserted into the stator slot, wherein described in one layer
Low resistivity conductor is arranged at the notch of the stator, and other each described low resistivity conductors of layer and high resistivity conductor can be handed over
For setting, can also be disposed adjacent.
Preferably, the low resistivity conductor and high resistivity conductor are four layers.
Preferably, the low resistivity conductor and high resistivity conductor are six layers.
Preferably, low resistivity conductor, four layers of high resistivity conductor described in arrangement two-layer in the stator slot.
Preferably, four layers of low resistivity conductor, high resistivity conductor described in two-layer of arrangement in the stator slot.
According to another aspect of the present invention, there is provided a kind of motor, the motor includes described mixed conductor winding construction.
According to another aspect of the present invention, there is provided a kind of electric automobile, including described motor.
In general, by the contemplated above technical scheme of the present invention compared with prior art, with following technology effect
Really：
(1) mixed conductor winding construction of the invention, winding is using low resistivity conductor and high resistivity conductor combination
Mode, combines the conductor resistance rate advantage for reducing direct current copper loss and conductor resistance rate suppression A.C.power loss high.
(2) arranging multiplayer low resistivity conductor and high resistivity conductor and high resistivity conductor in one stator slot of motor,
It is at the middle and upper levels low resistivity conductor near the conductor of notch, to suppress A.C.power loss larger at notch.
(3) by the way of multilayer low resistivity conductor and high resistivity conductor combination, can to low resistivity conductor and
The area of section of high resistivity conductor is optimized, and both optimal area of section match ratios is found, so as to reduce on the whole
Winding A.C.power loss, cost and weight.
(4) galvanic corrosion problems when being connected in order to avoid low resistivity conductor and high resistivity conductor, and winding
The complicated difficult problem of end connection, it is proposed that a kind of end connection ring with transit joint, the mode of connection avoids low
The directly contact of electric resistivity conductor and high resistivity conductor, and the technique for simplifying end connection.
Brief description of the drawings
Fig. 1 is ordinary rectangular copper conductor winding construction schematic diagram (four layers of conductor of a groove) in the prior art；
Fig. 2 is a kind of motor mixed conductor winding construction schematic diagram (four layers of conductor of a groove) during the present invention is implemented；
Fig. 3 is a kind of motor mixed conductor winding construction schematic diagram (four layers of conductor of a groove) during the present invention is implemented；
Fig. 4 is that the single conductor that a kind of motor mixed conductor winding during the present invention is implemented is related to and stator core structure show
It is intended to；
Fig. 5 is the mixing rectangle conductor winding graphics that a kind of motor mixed conductor winding during the present invention is implemented is related to
(four layers of conductor of a groove)；
Fig. 6 is the mixing rectangle conductor winding graphics that a kind of motor mixed conductor winding during the present invention is implemented is related to
(six layers of conductor of a groove, two layers of aluminium conductor)；
Fig. 7 is the mixing rectangle conductor winding graphics that a kind of motor mixed conductor winding during the present invention is implemented is related to
(six layers of conductor of a groove, two layers of aluminium conductor)；
Fig. 8 is the mixing rectangle conductor winding graphics that a kind of motor mixed conductor winding during the present invention is implemented is related to
(six layers of conductor of a groove, two layers of aluminium conductor)；
Fig. 9 is the mixing rectangle conductor winding graphics that a kind of motor mixed conductor winding during the present invention is implemented is related to
(six layers of conductor of a groove, two layers of aluminium conductor)；
Figure 10 is a kind of motor mixed conductor winding overhang connecting ring (four layers of conductor of a groove) during the present invention is implemented.
In all accompanying drawings, identical reference is used for representing identical element or structure, wherein：1- stator slots 1,2- are fixed
Pilot trench 2,3- rectangles copper conductor, 4- rectangles aluminium conductor, 5- stator cores, 6- conductors, 7- end-fittings, 8- ends lead-out wire, 9-
End plate, 10- central points connecting ring, 11-A connect wire loop, the 13-C of wire loop, 12-B that connect connect wire loop, 14- three-phase lead-out wire plates.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as additionally, technical characteristic involved in invention described below each implementation method
Not constituting conflict each other can just be mutually combined.
Fig. 2 is a kind of motor mixed conductor winding construction schematic diagram (four layers of conductor of a groove) during the present invention is implemented.Such as
Shown in Fig. 2, mixed conductor winding construction is made up of copper rectangular conductor and aluminum rectangle conductor, and wherein aluminum rectangle conductor is placed in stator slot
At mouthful, to reduce the A.C.power loss of generation.As shown in Fig. 2 illustrating conductor arrangement side as a example by arranging 4 layers of conductor in a groove
Formula and inserting-coil process.A piece rectangular conductor is first bent into hairpin, and two arrangements are inserted on two for then being formed conductor side respectively
In the stator slot of slot insulation.
As shown in Fig. 2 a conductor side of wherein aluminum rectangle conductor is the ground floor conductor in a stator slot, another
Conductor side is the third layer conductor of another stator slot, and a conductor side of copper rectangular conductor is the second layer in a stator slot
Conductor, another conductor side is the 4th layer of conductor of another stator slot.
Fig. 3 is a kind of motor mixed conductor winding construction schematic diagram (four layers of conductor of a groove) during the present invention is implemented.Such as
Shown in Fig. 3, wherein a conductor side of aluminum rectangle conductor is the ground floor conductor in stator slot 1, and another conductor side is stator
Second layer conductor in groove 2, a conductor side of copper rectangular conductor is the third layer conductor in stator slot 1, another conductor side
The 4th layer of conductor in for stator slot 2.
After all conductors are inserted along stator circumference, end is distorted and is connected again, and its graphics is as shown in figure 4, winding
End forms two-layer, and internal layer is aluminium conductor winding, and outer layer is copper conductor winding.Due to copper conductor and the difference of aluminium conductor resistivity
And its difference of weight and cost, the area of section of copper conductor and aluminium conductor can be optimized, integrally imitated with improving motor
Rate, reduction winding cost and weight.
In order to further reduce A.C.power loss or increase umber of turn, in a preferred embodiment of the invention, Ke Yi
Arranging multiplayer conductor in one groove.When having six layers of conductor in one groove, winding is disposed with four kinds of situations in groove, respectively as Fig. 6,
Shown in Fig. 7, Fig. 8 and Fig. 9.In Fig. 6, only two layers of rectangle aluminium conductor, in Fig. 7, there is four layers of aluminium conductor in a groove in a groove,
In Fig. 8, only two layers of rectangle aluminium conductor, in Fig. 9, there is two layers of aluminium conductor in a groove in a groove.Other more winding numbers of plies
Situation, it will there are more similar winding conductor arrangements, do not list one by one here.
The arrangement form of its conductor is illustrated by taking Fig. 6 as an example, the arrangement form of other numbers of plies is similar to, as shown in fig. 6, aluminium conductor
A conductor side be ground floor conductor in a stator slot 1, another conductor side is the 4th layer of conductor in stator slot 2,
One conductor side of copper conductor is the second layer conductor in stator slot 1, and another conductor side is that the layer 5 in stator slot 2 is led
Body, a conductor side of aluminium conductor is the third layer conductor in a stator slot 1, and another conductor side is the in stator slot 2
Six layers of conductor.
During in order to avoid due to copper conductor and aluminium conductor connection, produce electrochemical corrosion and damage jointing, and letter
Change the structure and Joining Technology of neutral point, end connection and lead-out wire, in a preferred embodiment of the invention, propose that one kind is directed to
The end connection ring of such mixing rectangle winding.As shown in fig. 7, end connection ring is drawn by end plate, four connecting rings and three-phase
Line plate is constituted, and four connecting rings are respectively neutral point connection ring and three-phase windings connection ring, and four connecting rings can be fixed
In the groove outputed on end plate.Due to connecting ring for copper material, it is necessary to the position connected in aluminium conductor and connecting ring and copper conductor
Arranged between aluminium conductor copper facing on copper aluminium conductor transit joint (as shown in Figure 7), or use aluminium, tin plating, crimping on copper,
Flash welding, friction welding (FW), soldering and carry out the mode such as copper aluminium sheet and connect, avoiding the electrochemistry between copper conductor and aluminium conductor rotten
Erosion, improves the reliability of motor.
Mixing rectangle conductor winding proposed by the present invention, it is made up of the conductor mixing of multiple material property, is led with two kinds
As a example by body copper rectangular conductor and aluminum rectangle conductor, wherein aluminum rectangle conductor is placed at stator rabbet, to reduce what is produced in conductor
A.C.power loss, reduces notch conductor hot-spot and causes the risk of insulation damages.And due to using aluminium conductor, it is around composition
This and weight can respectively decline 36% and more than 35%.The new above-mentioned advantage of motor winding for proposing will be reduced effectively
Electric automobile whole weight, cost and energy consumption, so as to improve the course continuation mileage of electric automobile, improve its market competitiveness.
In technical scheme, illustrated by taking the aluminium of the copper of low-resistivity and high resistivity as an example in preferred embodiment
Scheme of the invention, when a groove inner wire number is more, it is possible to use the mode of various electric resistivity conductor combinations, it is not limited to only
Using two kinds of copper conductors and aluminium conductor of resistivity, can also be that the conductor of various resistivity is used cooperatively, specific conductor kind
Class determines according to actual needs.
In the inventive solutions, the number of plies of effect preferably copper conductor and aluminium conductor is given in embodiment, but
The invention is not restricted to the copper conductor and the number of plies of aluminium conductor that are given in above-described embodiment, can with four layers in Example, six layers,
Eight layers, ten layers, Floor 12 etc. can also be taken, the number of plies of specific copper conductor and aluminium conductor determines according to actual needs.
In the inventive solutions, the arrangement shape of effect preferably copper conductor and aluminium conductor is given in embodiment
Formula, but copper conductor and the arrangement form of aluminium conductor the invention is not restricted to be given in above-described embodiment, can insert in the stator slot
Enter multilayer low resistivity conductor and high resistivity conductor, wherein one layer of low resistivity conductor is arranged at the notch of the stator
Place, other each described low resistivity conductors of layer and high resistivity conductor can be arranged alternately, can also be disposed adjacent, specific copper conductor and
The arrangement form of aluminium conductor determines according to actual needs.
As it will be easily appreciated by one skilled in the art that the foregoing is only presently preferred embodiments of the present invention, it is not used to
The limitation present invention, all any modification, equivalent and improvement made within the spirit and principles in the present invention etc., all should include
Within protection scope of the present invention.
Claims (10)
1. a kind of mixed conductor winding construction, it is characterised in that the conductor winding structure includes：Low resistivity conductor and high resistance
After rate conductor, the low resistivity conductor and high resistivity conductor are bent into hairpin respectively, insert or embedded stator slot (1,2)
In；
Wherein, the low resistivity conductor is arranged at the notch of the stator (1,2), and the high resistivity conductor is arranged at
At the bottom land of the stator (1,2)；And
End connection ring, for realizing being fixedly connected for the low resistivity conductor and high resistivity end conductor, so as to be formed
Mixed conductor winding construction.
2. a kind of mixed conductor winding construction according to claim 1, it is characterised in that the end connection ring includes end
Plate (9), neutral point connection ring (10) and three-phase windings connection ring (11,12,13), wherein, the neutral point connection ring (10) and
Three-phase windings connection ring (11,12,13) is fixed in the fluting of end plate (9).
3. a kind of mixed conductor winding construction according to claim 1 and 2, it is characterised in that the three-phase windings connection
Ring (11,12,13) is provided with end-fitting (7), for being connected as the high resistivity conductor and low-resistivity three-phase windings
The transit joint of ring (11,12,13), prevents it from producing electrochemical corrosion.
4. a kind of mixed conductor winding construction according to any one of claim 1-3, it is characterised in that the stator slot
Multilayer low resistivity conductor and high resistivity conductor are can be inserted into (1,2), wherein one layer of low resistivity conductor is arranged at institute
State at the notch of stator (1,2), other each described low resistivity conductors of layer and high resistivity conductor can be arranged alternately, also can be adjacent
Set.
5. a kind of mixed conductor winding construction according to any one of claim 1-4, it is characterised in that the low resistance
Rate conductor and high resistivity conductor are four layers.
6. a kind of mixed conductor winding construction according to any one of claim 1-4, it is characterised in that the low resistance
Rate conductor and high resistivity conductor are six layers.
7. a kind of mixed conductor winding construction according to claim 6, it is characterised in that the interior cloth of the stator slot (1,2)
Put low resistivity conductor described in two-layer, four layers of high resistivity conductor.
8. a kind of mixed conductor winding construction according to claim 6, it is characterised in that the interior cloth of the stator slot (1,2)
Put four layers of low resistivity conductor, high resistivity conductor described in two-layer.
9. a kind of motor, it is characterised in that including the mixed conductor winding construction any one of claim 1-9.
10. a kind of electric automobile, it is characterised in that including the motor described in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611164782.8A CN106787335A (en) | 2016-12-16 | 2016-12-16 | A kind of mixed conductor winding construction and the motor with the structure and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611164782.8A CN106787335A (en) | 2016-12-16 | 2016-12-16 | A kind of mixed conductor winding construction and the motor with the structure and its application |
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| Publication Number | Publication Date |
|---|---|
| CN106787335A true CN106787335A (en) | 2017-05-31 |
Family
ID=58891715
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611164782.8A Pending CN106787335A (en) | 2016-12-16 | 2016-12-16 | A kind of mixed conductor winding construction and the motor with the structure and its application |
Country Status (1)
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109120203A (en) * | 2017-06-23 | 2019-01-01 | 台达电子工业股份有限公司 | motor control system |
| CN109560639A (en) * | 2017-09-27 | 2019-04-02 | 天津市松正电动汽车技术股份有限公司 | A kind of side's copper wire motor stator structure |
| CN110798001A (en) * | 2018-08-03 | 2020-02-14 | 丰田自动车株式会社 | Electric motor |
| DE102019109060A1 (en) * | 2018-12-19 | 2020-06-25 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein | Electrical conductor and its manufacture |
| EP3675331A1 (en) * | 2018-12-28 | 2020-07-01 | Delta Electronics, Inc. | Motor stator |
| CN111384806A (en) * | 2018-12-28 | 2020-07-07 | 台达电子工业股份有限公司 | Motor stator |
| CN113872401A (en) * | 2020-06-30 | 2021-12-31 | 北京金风科创风电设备有限公司 | Coil of motor and manufacturing method thereof, motor stator and manufacturing method thereof, and motor |
| WO2022239775A1 (en) * | 2021-05-13 | 2022-11-17 | 株式会社アスター | Coil, stator, and motor |
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| CN113872401A (en) * | 2020-06-30 | 2021-12-31 | 北京金风科创风电设备有限公司 | Coil of motor and manufacturing method thereof, motor stator and manufacturing method thereof, and motor |
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| WO2022239775A1 (en) * | 2021-05-13 | 2022-11-17 | 株式会社アスター | Coil, stator, and motor |
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Application publication date: 20170531 |
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