CN104184224B - Engine with distributed-winding stator - Google Patents

Engine with distributed-winding stator Download PDF

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Publication number
CN104184224B
CN104184224B CN201410112613.4A CN201410112613A CN104184224B CN 104184224 B CN104184224 B CN 104184224B CN 201410112613 A CN201410112613 A CN 201410112613A CN 104184224 B CN104184224 B CN 104184224B
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CN
China
Prior art keywords
stator
casing
coil
winding
coil end
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Application number
CN201410112613.4A
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Chinese (zh)
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CN104184224A (en
Inventor
权正基
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Hyundai Mobis Co Ltd
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Hyundai Mobis Co Ltd
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Publication of CN104184224A publication Critical patent/CN104184224A/en
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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/48—Fastening of windings on the stator or rotor structure in slots

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Windings For Motors And Generators (AREA)

Abstract

The present invention discloses a kind of engine with distributed-winding stator.According to an aspect of the present invention, there is provided a kind of engine with distributed-winding stator, including：Rotor, the rotation driving centered on rotary shaft in rotor system；Stator, possesses stator core and the coil with Distributed Winding mode winding to the stator core, and a part for the coil is exposed and form coil end to the direction of principal axis outside of the stator core；Casing, its inner side houses the rotor and stator；And insulation division, it is arranged between the inner peripheral surface of the casing and the coil end.

Description

Engine with distributed-winding stator
Technical field
The present invention relates to the engine with distributed-winding stator, in more detail, relate to be used in mix and move The engine with distributed-winding stator of power car etc..
Background technology
Generally, engine is the device for converting electrical current into mechanical energy and obtaining revolving force, is generally applicable to household electricity Sub- product is to the extensive field such as various industry machines.This engine is fixed to casing（housing）Or case（case）It is interior, root Rotor system is formed according to the applying of power supply, therefore main composition is the stator of winding coil and is rotated according to the axle of stator interior Rotor, stator produce flux and rotor interaction and produce rotation torque.
In addition, recently from the vapour that another form that is environmentally friendly and considering fuel cost is gone to using the automobile of combustion engine Car is the research and development of hybrid electric vehicle or electronic car.Hybrid electric vehicle connects existing combustion engine and driven type hair Motivation, with two kinds of power source drive vehicles, electronic car is led because using driven type engine as that can reduce discharge gas The environmental pollution of cause, the young mobile of the realization of raising fuel ratio.In described hybrid electric vehicle or electronic car, start Machine is the core component for being enough to left and right overall vehicle performance, and exploitation height output, put-put turn into the focus of association area.
The content of the invention
（The technical problem to be solved）
Embodiments of the invention provide the Distributed Winding mode that a kind of use can reduce direction of principal axis length with distribution The engine of formula wound stator.
（The means of solve problem）
According to an aspect of the present invention, there is provided a kind of engine with distributed-winding stator, including：Rotor, is turning The rotation driving centered on rotary shaft in subsystem；Stator, possesses stator core and with Distributed Winding mode winding to the stator The coil of iron core a, part for the coil is exposed and forms coil end to the direction of principal axis outside of the stator core；Casing, Its inner side houses the rotor and stator；And insulation division, it is arranged between the inner peripheral surface of the casing and the coil end.
（The effect of invention）
Embodiments of the invention, insulation division are arranged between coil end and casing inner peripheral surface, make insulation gap minimum Change, the height of coil end can be fully reduced in moulding process, therefore, it is possible to reduce the direction of principal axis length of engine.
Brief description of the drawings
Fig. 1 is the profile of the engine structure for being presented general.
Fig. 2 is presented according to Distributed Winding and the skeleton diagram of the stator of concentratred winding mode winding coil.
Fig. 3 is the skeleton diagram of the engine with distributed-winding stator of an embodiment of the invention.
Fig. 4 is the skeleton diagram of the stator that general Distributed Winding mode is presented.
The explanation of symbol
100:Engine 110:Stator
120:Rotor 130:Casing
140:Insulation division
Specific embodiment
Below, embodiments of the present invention will be described in detail with reference to the accompanying drawings.But, embodiment below is intended merely to contribute to reason Solve the present invention and provide, the scope of the present invention is not limited to following examples.Also, following examples are in order to the industry There is practitioner the people of general knowledge to be described more fully the present invention and provide, and be judged as that the open composition of correlation may not When necessarily obscuring technology main idea of the invention, detail explanation is omitted.
Fig. 1 is the profile of the engine structure for being presented general.
With reference to Fig. 1, general engine includes stator 10, rotor 20 and casing 30.
Stator 10 includes the stator core 11, winding in the path for providing flux to the coil 12 of stator core 11, and passes through The electric current of coil 12 is applied to, the flux for forming rotor system is produced.
Rotor 20 has rotary shaft, is rotatably supported in casing 30.Rotor 20 is according to stator 10 electromagnetically Interact and the rotation driving in rotor system, therefore, rotor core 21 and magnetic 22 etc. can be possessed.
In addition, casing 30 can provide for the installing space of housing stator 10 and rotor 20.The inside of casing 30 is except quilt Beyond the stator 10 of fixed support, rotor 20 is rotatably supported by bearing etc. centered on rotary shaft.Also, according to Required, casing 30 can possess the cooling flowing path for cooling down or the binding post for connecting coil（terminal block） Deng.
Described stator 10, rotor 20 and casing 30 are once disclosed by traditional general engine, therefore omit detailed Thin explanation, is described in detail centered on stator 10 related to the present invention below.
With reference to Fig. 1, the composition of stator 10 includes stator core 11 and coil 12.It has been observed that stator core 11 provides flux Path, can be formed by the small material of magnetic resistance, the winding of coil 12 (winding) arrive this stator core 11.
At this moment, coil 12 in many ways winding to stator core 11, representational mode is Distributed Winding (distributed winding) and concentratred winding (concentrated winding) mode.
Fig. 2 is presented according to Distributed Winding and the skeleton diagram of the stator of concentratred winding mode winding coil.Fig. 2 (a) is illustrated The situation of Distributed Winding, Fig. 2 (b) illustrates the situation of concentratred winding.
First, with reference to Fig. 2 (a), Distributed Winding mode is the coil of each phase (phase) to be distributed to the groove of more than 2 (slot) method of winding of winding is carried out.Distributed Winding mode compares concentratred winding mode described later, reduces electromotive force harmonic wave And improve waveform, the leakage reactance of coil can be reduced, be evenly distributed the heat produced by coil, with prevent overheat it is excellent Point.
With reference to Fig. 2 (b), concentratred winding mode is that the coil of each pole (pole) each phase (phase) is focused on a groove to enter The method of row winding.This concentratred winding mode considers the facility of operation, partition type iron core can be used, each partition type iron core It is continuous to be combined into annular, form the form of the stator of diagram.
Especially, concentratred winding mode coil 12b is close to stator core 11b and winding, with being conducive to put-put Making advantage.More specifically, as Fig. 2 (b) is illustrated, concentratred winding mode coil 12b can be close to stator core 11b and winding, between the direction of principal axis end of coil 12b and the end of stator core 11b, can form shorter length L2.Change sentence Talk about, if the part exposed outside grooves of the coil 12b to stator core 11b is referred to as ' coil end 13b ', coil end 13b From the end of stator core 11b, the length that axially outside is exposed is referred to as ' the height L2 ' of coil end 13b, concentratred winding Mode has the advantages that to make the height L2 of coil end 13b to be formed small.This causes the diminution of the direction of principal axis length of engine. (in addition, described ' direction of principal axis ' refers to the rotation direction of principal axis of rotor.)
The advantage of described concentratred winding mode turns into the main original using concentratred winding mode on the put-put of part Cause.Especially, hybrid electric vehicle because installation space restriction or stacking on need the reasons such as the diminution of direction of principal axis length of engine, Most hybrid vehicle engines use the method for winding of concentratred winding mode.
In addition, referring again to Fig. 2 (a), Distributed Winding mode coil 12a passes through the girth for being arranged on stator core 11a The form of each groove in direction carries out winding, and compared to concentratred winding mode, the height L2 with coil end 13a forms higher Shortcoming.As a result, increased the direction of principal axis length of engine so that become tired in the applicable Distributed Winding mode such as hybrid electric vehicle It is difficult.
But, Distributed Winding mode is more favourable than concentratred winding mode at aspects such as waveform improvement, leakage reactance, heat distributions, It is as described below, although embodiments of the invention are intended to provide using Distributed Winding mode, can reduce coil end height or The engine with distributed-winding stator of the direction of principal axis length of engine.
Fig. 3 is the skeleton diagram of the engine with distributed-winding stator of an embodiment of the invention.
Fig. 3 is and lower of Fig. 1 identicals form expands the figure of stator core and coiler part.
With reference to Fig. 3, and engine according to the present embodiment with distributed-winding stator (hereinafter referred to as ' engine 100 ') can Possess rotor 120, stator 110 and casing 130.
The rotation driving centered on rotary shaft of rotor 120, it is identical with traditional rotor to be similarly formed, therefore omit detailed Explanation.
In addition, stator 110 may include stator core 111 and coil 112 and constitute.
Stator core 111 is formed as hollow circle tube on the whole, along circumferential direction, can possess multiple grooves (slot).This is identical with traditional stator core similar, therefore omits detailed description.
, to stator core 111, especially, the coil 112 according to the present embodiment is with Distributed Winding mode winding for the winding of coil 112 To stator core 111.At this moment, a part for coil 112 is housed in groove, can be embedded between groove and coil 112 for insulation Insulating paper 113.
In addition, the another part of coil 112 is exposed outside to groove and forms coil end 112a.Coil end 112a refers to Coil 112 by groove, to the part that the outside of stator core 111 is exposed.Axles of this coil end 112a in stator core 111 The side of direction two is formed respectively, and the situation of Distributed Winding mode is that coil end 112a turns into coil 112 to turn from a groove The part exposed in a side end face of stator core 111 to another groove (with reference to Fig. 2 (a)).
Generally, coil end 112a as mentioned, with Distributed Winding each phase of mode winding on stator core 111 (phase) after coil 112, by fixture by compression forming to a certain degree.That is, in order to reduce the height L of coil end 112a, Coil end 112a is axially pressurizeed by fixture etc. and reduces the processing operation (moulding process) of certain altitude.
In addition, around the coil end 112a that surrounds internal housing stator 110 and expose of casing 130.(referring to Fig. 1). Below for the facility of explanation, a side end 111a of stator core 111 in the inner peripheral surface of casing 130 or it is arranged to and coil End 112a relative face is referred to as ' to face 131 ', from the face call ' side that inner peripheral surface girth is formed to extending to face 131 Face 132 '.
In addition, the engine 100 according to the present embodiment may include the inner peripheral surface and coil end of casing 130 as mentioned Embedded insulation division 140 between 112a.Insulation gap needed for the insulation of the reduction coil end of this insulation division 140 112a, energy Enough reduce the overall direction of principal axis length of engine, make in the moulding process of coil end 112a the height L of coil end 112a into Type obtains lower.
More specifically, insulation division 140 may include to be located at coil end 112a and casing 130 to between face 131 1st insulation division 141.1st insulation division 141 be embedded into coil end 112a and casing 130 to that between face 131, can reduce The insulation gap between coil end 112a and casing 130 needed for the insulation of coil end 112a.
Fig. 4 is the skeleton diagram of the stator that general Distributed Winding mode is presented.
If the additional information with reference to Fig. 4, generally, the coil end 12a exposed to the outside of stator core 11 is Insulation with casing 30, the inner peripheral surface with casing 30 maintains insulation gap Q.This insulation gap Q refer to coil end 12a with Direction of principal axis isolation distance between the inner peripheral surface of casing 30, when not ensuring sufficient isolation distance, insulating properties can decline, referred to as Hinder the factor of the direction of principal axis length for reducing engine.
Conversely, referring again to Fig. 3, the situation of the engine 100 according to the present embodiment is that the 1st insulation division 141 is located at coil Between the inner peripheral surface of end 112a and casing 130 and between insulated coil end 112a and casing 130.Therefore, in the present embodiment, The insulation gap of Fig. 4 as the aforementioned is not required, or only needs the insulation gap of minimum to can be achieved with coil end 112a and casing 130 Between insulation.As a result, the direction of principal axis length of engine is reduced by the omission or minimum of insulation gap.
In addition, the insulation division 140 according to the present embodiment may include to be arranged on the 2nd insulation division of the side surface part 132 of casing 130 142.2nd insulation division 142 can extend and be formed from the 1st insulation division 141, positioned at the casing of the height L of correspondence coil end 112a 130 side surface part 132.2nd insulation division 142 is similar with the 1st foregoing insulation division 141, is embedded into coil end 112a and casing Between 130, so that between insulated coil end 112a and casing 130.
Especially, the 2nd insulation division 142 makes the height L of coil end 112a than passing in the moulding process of coil end 112a It is lower on system.
That is, with reference to Fig. 4, generally, coil end 12a is axially pressurizeed and the height of coil end 12a is reduced Spend in the moulding process of L1, accomplish that coil end 12a does not contact the degree of the inner peripheral surface of casing 30.That is, moulding process When be contemplated that axially many pressurized line circle end 12a and reduce coil end 12a height L1 or engine direction of principal axis it is long The scheme of degree, but in this case, coil end 12a meeting overbending deformations may make coil end 12a and the phase of casing 30 Contact, therefore, it is traditional generally, the height L1 that coil end 12a is reduced by moulding process is with limit.
Conversely, with reference to Fig. 3, in the present embodiment, to the side surface part 132 of the inner peripheral surface of casing 130, the 2nd insulation division 142 Extend and formed, even if coil end 112a has an overbending to deform by moulding process, can also realize coil end Insulation between 112a and casing 130.Therefore during moulding process, the height L of coil end 112a can fully be reduced, as a result, The direction of principal axis length of engine can be reduced.
Also, according to required, insulation division 140 may include to be arranged on the 3rd insulation division of the end 111a of stator core 111 143.3rd insulation division 143 extends from the 2nd insulation division 142, can cover a part of the end 111a of stator core 111.It is this 3rd insulation division 143 in moulding process, coil end 112a and the phase of stator core 111 because of coil end 112a flexural deformations When adjacent, also can be between insulated coil end 112a and stator core 111.Therefore, coil end can be fully reduced in moulding process The height L of 112a is held, the direction of principal axis length of engine as a result can be reduced.
In addition, the 1st to 3 described insulation division 141,142,143 can be by the material shape such as insulating paper, electric hot plate, insulating resin Into the 1st to 3 insulation division 141,142,143 is each formed respectively, or is partly or entirely formed as one.Also, the 1st to 3 insulation Portion 141,142,143 is formed as one or possessed other part by injection moulding etc. in casing 130 or stator core 111, Can be assembled with casing 130 or the grade of stator core 111.
Embodiments of the invention are explained above, there is the people of general knowledge, Neng Gou in the technical field of the invention Do not depart from the range of technological thought of the invention, can by the additional of inscape, change, delete or additional etc., to this hair It is bright to carry out various amendments and change, and this is fallen within scope of authority of the invention.

Claims (4)

1. a kind of engine with distributed-winding stator, including：
Rotor, the rotation driving centered on rotary shaft in rotor system；
Stator, possess stator core and with Distributed Winding mode around the stator core coil, a part for the coil Expose and form coil end to the direction of principal axis outside of the stator core；
Casing, its inner side houses the rotor and stator；And
Insulation division, is arranged between the inner peripheral surface of the casing and the coil end；
The insulation division, including：
1st insulation division, is arranged on relative with the coil end to face, the coil end in the inner peripheral surface of the casing Between；
2nd insulation division, is arranged between the side surface part of the inner peripheral surface girth to form the casing, the coil end；And
3rd insulation division, is arranged on the direction of principal axis end of the stator core；
And the coil end,
It is press-formed with direction of principal axis around the backward stator core of the coil, the 1st to 3 insulation is contacted at least partially More than one in portion.
2. the engine with distributed-winding stator according to claim 1,
The insulation division, including：
Insulating paper, at least one of insulation board and insulating resin.
3. the engine with distributed-winding stator according to claim 1,
The insulation division,
Formed as one with the casing in the inner peripheral surface insert molding of the casing.
4. the engine with distributed-winding stator according to claim 1,
The insulation division,
With other part it is composable be formed at the casing.
CN201410112613.4A 2013-05-20 2014-03-25 Engine with distributed-winding stator Active CN104184224B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2013-0056364 2013-05-20
KR20130056364A KR20140136185A (en) 2013-05-20 2013-05-20 Motor having stator of distributed winding

Publications (2)

Publication Number Publication Date
CN104184224A CN104184224A (en) 2014-12-03
CN104184224B true CN104184224B (en) 2017-06-30

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CN (1) CN104184224B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11368078B2 (en) 2017-04-14 2022-06-21 Carrier Corporation Electrical machine winding inductance enhancement
CN112701832B (en) * 2020-11-12 2022-07-19 奇瑞新能源汽车股份有限公司 Stator insulating boot, motor stator and motor
CN114362416A (en) * 2022-01-13 2022-04-15 浙江盘毂动力科技有限公司 Stator shell insulation structure and disc type motor
KR20240081009A (en) 2022-11-30 2024-06-07 현대위아 주식회사 Motor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4219748A (en) * 1975-02-19 1980-08-26 Matsushita Electric Industrial Co., Ltd. Electrical machine stator and manufacturing method therefor
CN102594068A (en) * 2012-01-20 2012-07-18 天津大学 Method for widening weak magnetic speed regulating range of permanent magnet synchronous motor and stator of permanent magnet synchronous motor
CN102742128A (en) * 2009-12-15 2012-10-17 Abb有限公司 Method for manufacturing winding coil of electric machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012157207A (en) * 2011-01-28 2012-08-16 Panasonic Corp Electric motor stator, compressor, and device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4219748A (en) * 1975-02-19 1980-08-26 Matsushita Electric Industrial Co., Ltd. Electrical machine stator and manufacturing method therefor
CN102742128A (en) * 2009-12-15 2012-10-17 Abb有限公司 Method for manufacturing winding coil of electric machine
CN102594068A (en) * 2012-01-20 2012-07-18 天津大学 Method for widening weak magnetic speed regulating range of permanent magnet synchronous motor and stator of permanent magnet synchronous motor

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CN104184224A (en) 2014-12-03
KR20140136185A (en) 2014-11-28

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