CN109586446A - Conductor segment and stator module, motor - Google Patents
Conductor segment and stator module, motor Download PDFInfo
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- CN109586446A CN109586446A CN201710910192.3A CN201710910192A CN109586446A CN 109586446 A CN109586446 A CN 109586446A CN 201710910192 A CN201710910192 A CN 201710910192A CN 109586446 A CN109586446 A CN 109586446A
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- interval
- conductor segment
- slot
- stator
- linkage
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- 239000010410 layers Substances 0.000 claims abstract description 63
- 238000005452 bending Methods 0.000 claims abstract description 33
- 238000003780 insertion Methods 0.000 claims abstract description 3
- 238000009413 insulation Methods 0.000 abstract description 12
- 238000004804 winding Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 4
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the 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
-
- 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
Abstract
Description
Technical field
The present invention relates to motor field, the conductor segment more particularly, to a kind of stator module, the stator including the conductor segment Component and motor including the stator module.
Background technique
In the related technology, for passing through the head court in its U-shape in the same layer hair fastener coil of cartridge-type stator module To form bending step, which can make the U-shaped portion point end of hair fastener coil for inside bending between a supporting leg thereto Portion (i.e. hair fastener end) is got higher；In addition, the bending fillet due to the bending step is too small, it is easy to damage flat type copper wire surface coat of paint, is led Cause defective insulation.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention proposes that one kind is fixed The conductor segment of sub-component, the conductor segment make the compact-sized and insulation effect of stator winding good.
The invention also discloses a kind of stator modules including the conductor segment.
The invention also discloses the motors including the stator module.
The conductor segment of a kind of stator module of embodiment according to a first aspect of the present invention, is adapted for insertion into the difference of stator core In the identical groove layer of stator slot, the conductor segment is formed as general U-shape and includes: bending part, and the bending part includes the One interval, the second interval and the linkage section being connected between first interval and second interval, first interval and One of them of second interval is relative to linkage section to radial torsion；First slot inner part, the first slot inner part connect It connects in one end far from the linkage section of first interval；Second slot inner part, the second slot inner part are connected to institute State one end far from the linkage section of the second interval.
Conductor segment according to an embodiment of the present invention, by carrying out the first interval of bending part or the second interval radially Torsion, and the first slot inner part and the second slot inner part be without any processing, thus relative to folding to be arranged in the related technology The conductor segment of curved step-feature, will not influence the height of conductor segment in the axial direction, to will not influence entire stator winding Height, so that stator winding structure after molding is compact.In addition, due to radial torsion, relative to bending in the related technology Step-feature can effectively reduce bending bring insulation damage layer risk, can protect flat type copper wire surface coat of paint, guarantee good Insulation performance.
According to some embodiments of the present invention, the conductor segment is formed as general U-shape.
According to some embodiments of the present invention, first interval and second interval are arc segment.
Optionally, first interval and the arc segment decentraction where second interval.
Optionally, the arc length of first interval and second interval differs.
According to some embodiments of the present invention, the cross section of the conductor segment is rectangular shape, wherein the linkage section Both ends distance d1 in the radial direction is greater than the width d2 of linkage section cross section.
According to some embodiments of the present invention, first interval and second interval are straightway.
According to some embodiments of the present invention, inclined of the linkage section relative to stator, the first layer Angle α 1, second interval between section and the linkage section and the angle α 2 between the linkage section are obtuse angle.
Optionally, the α 1 is not equal to the α 2.
According to some embodiments of the present invention, the first slot inner part and the first layer section are located in the first face, institute It states the second slot inner part and the second layer section is located in the second face.
Optionally, first face is arcwall face or plane, and second face is arcwall face or plane.
According to some embodiments of the present invention, any cross section perpendicular to its extending direction of the conductor segment is square Shape shape.
Optionally, any cross section of the conductor segment is rectangular shape, and the rectangular short side is perpendicular to described Stator groove bottom wall.
Optionally, on the extending direction of the conductor segment, the cross section of the conductor segment is identical.
By using the same layer conductor segment of rectangular-shaped cross section, so that on the one hand can make when being inserted into stator slot Positioned at adjacent trench layers first or second slot inner part between it is compact-sized, on the other hand can guarantee surface insulation coat of paint It is complete, to guarantee excellent insulation performance.
A kind of stator module of embodiment according to a second aspect of the present invention, comprising: columnar stator core, the stator There are the spaced multiple stator slots of circumferencial direction along the stator core on iron core；Implement according to a first aspect of the present invention The same layer conductor segment of example, the first slot inner part and the second slot inner part of the same layer conductor segment are located at a distance of pre- Determine in the identical groove layer of two stator slots of slot number.
According to some embodiments of the present invention, the same layer conductor segment is respectively positioned on two stator slots at a distance of predetermined slot number In outermost layer or in innermost layer.
An optional embodiment according to the present invention, when the conductor segment is located at outermost layer, the linkage section relative to One of them of the inclined of stator module, first interval and second interval are relative to linkage section along stator The radially outward torsion of component.
Another optional embodiment according to the present invention, when the conductor segment is located at innermost layer, the linkage section is opposite In the inclined of stator module, one of them of first interval and second interval are relative to linkage section along fixed The radially-inwardly torsion of sub-component.
A kind of motor of embodiment according to a third aspect of the present invention, including described in embodiment according to a second aspect of the present invention Stator module.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures Obviously and it is readily appreciated that, in which:
Fig. 1 is the schematic diagram of conductor segment according to an embodiment of the present invention；
Fig. 2 is the top view of conductor segment shown in Fig. 1；
Fig. 3 is the schematic diagram of the bending part of conductor segment shown in Fig. 1；
Fig. 4 is the torsion schematic diagram of bending part shown in Fig. 3；
Fig. 5 is the schematic diagram of stator module according to an embodiment of the present invention, stator core is shown and as example Conductor segment.
Appended drawing reference:
Same layer conductor segment 100, bending part 110, the first interval 111, the second interval 112, linkage section 113,
First slot inner part 120, the second slot inner part 130,
First connecting portion 141, second connecting portion 142,
First weld part 151, the second weld part 152,
Stator core 200, stator slot 210,
Hair fastener end I, welding ends II
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", "top", " bottom, " "inner", "outside", " axial direction ", The orientation or positional relationship of the instructions such as " radial direction ", " circumferential direction " is to be based on the orientation or positional relationship shown in the drawings, merely to just In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with Specific orientation construction and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second " are only used In description purpose, it is not understood to indicate or imply relative importance or implicitly indicates the number of indicated technical characteristic Amount." first " is defined as a result, the feature of " second " can explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition Concrete meaning in invention.
Firstly, by being briefly described with stator module of the Fig. 5 and Fig. 1 to embodiment according to a second aspect of the present invention, it should Stator module includes conductor segment described in embodiment according to a first aspect of the present invention.
Stator module according to an embodiment of the present invention includes: stator core 200 and stator winding.As shown in figure 5, stator iron Core 200 is cylindrical shape, has multiple stator slots 210 on stator core 200.Specifically, stator slot 210 is formed in stator core On 200 internal perisporium, and run through stator core 200, and multiple stator slots along axial (such as up and down direction shown in Fig. 5) 210 along stator core 200 circumferentially-spaced arrangement, further, the diameter of the depth direction of stator slot 210 and stator core 200 It is consistent to direction.There are multiple groove layer in each stator slot 210.
Stator winding includes multiple conductor segments, and conductor segment includes bending part 110 and is respectively connected to the first of bending part Slot inner part 120 and the second slot inner part 130, the first slot inner part 120 pass through one of one of them in stator slot 210 Groove layer, the second slot inner part 130 pass through one of groove layer in another stator slot 210, the first slot inner part 120 and the Its end exceeds stator core 200 after two slot inner parts 130 pass through stator slot 210.
Bending part 110 in conductor segment 100 is the hair fastener end I of stator winding and the first slot inner part 120 at one end Be known as the welding ends II of stator winding at one end with the end of the second slot inner part 130, as shown in figure 3, welding ends II be by First slot inner part 120 of multiple conductor segments 100 and the second slot inner part 130 of conductor segment 100 adjacent thereto are successively welded It is formed.
Conductor segment includes at least two kinds of forms of same layer conductor segment and cross-layer conductor segment (not shown go out).Wherein, cross-layer conductor The the first slot inner part 120 and the second slot inner part 130 of section are located at the difference of two stator slots 210 at a distance of predetermined slot number In groove layer, in general, the first slot inner part 120 and 130 place groove layer number of the second slot inner part difference 1 can be positive 1 or negative 1.In other words, cross-layer conductor segment can be used for positive leap, i.e. 130 place groove layer of the second slot inner part is than the first slot inner part It one layer radially inward of 120 place groove layer, can be used for reversely crossing over, i.e., groove layer is than in the first slot where the second slot inner part Radially one layer of groove layer where part.
And the first slot inner part 120 and the second slot inner part 130 of same layer conductor segment are located at a distance of predetermined slot number In the identical groove layer of two stator slots 210, more specifically, same layer conductor segment is respectively positioned on two stator slots at a distance of predetermined slot number In 210 outermost layer or in innermost layer.
It is worth noting that, at a distance of " predetermined slot number ", usually y stator between two stator slots 210 mentioned above Slot, wherein y is integer and y=z/2p.For the stator module of 8 pole, 48 slot, y=6.That is, each conductor segment 6 stator slots are differed between first slot inner part 120 and the second slot inner part 130.
The same layer conductor segment 100 of stator module according to an embodiment of the present invention is described below with reference to Fig. 1-Fig. 5, is suitable for inserting In the identical groove layer for entering the different stator slots of stator core.As shown in Figure 1, same layer conductor segment 100 be formed as general U-shape and Including bending part 110, the first slot inner part 120 and the second slot inner part 130.
Specifically, as shown in Figures 2 and 3, bending part 110 includes the first interval 111, the second interval 112 and is connected to Linkage section 113 between first interval 111 and the second interval 112, the first slot inner part 120 are connected to the remote of the first interval 111 One end from linkage section 113, the second slot inner part 130 are connected to one end of the separate linkage section 113 of the second interval 112.
As shown in Figure 3 and Figure 4, one of them of the first interval 111 and the second interval 112 are relative to linkage section 113 to diameter To torsion, and another is not processed.
One of ordinary skill in the art will appreciate that in the stator slot for being inserted into stator core when conductor segment it Afterwards, if conductor segment is without torsion, the linkage section of adjacent conductor segment will be interfered, cause adjacent conductor segment without Method is offline, that is to say, that two conductor segments cannot be inserted into stator slot.And conductor segment 100 according to an embodiment of the present invention, lead to Radially the reversing in stator module by the first interval 111 of bending part 100 or the second interval 112 is crossed, and in the first slot Part 120 and the second slot inner part 130, so that forming avoiding space in the lower section of linkage section, make adjacent without any processing Conductor segment pass through, avoid and interfered between two adjacent conductor sections, and will not influence conductor segment in the axial direction Height, to will not influence the height of entire stator winding, so that stator winding structure after molding is compact.In addition, due to Radial torsion can effectively reduce bending bring insulation damage layer risk relative to bending step-feature in the related technology, It can protect flat type copper wire surface coat of paint, guarantee good insulation performance.
According to some embodiments of the present invention, the first interval 111 and the second interval 112 are arc segment, and arc segment has It is offline to be conducive to conductor segment for more avoiding spaces, and straightway is easier to interfere.Preferably, 111 He of the first interval Arc segment decentraction where second interval 112, i.e. the first interval 111 and the second interval 112 are not on same concentric circles. Further, the arc segment at one of place in the first interval 111 and the second interval 112 and stator core 200 are concentric, and Another and 200 decentraction of stator core.Or optionally, the arc length of the first interval 111 and the second interval 112 differs.
In a wherein specific embodiment, when conductor segment 100 is located at outermost layer, linkage section 113 is relative to stator pack The inclined of part, one of them in the first interval 111 and the second interval 112 is relative to linkage section 113 towards radial direction Radially outward direction along stator module is reversed, and as shown in Figure 3 and Figure 4, camber line o1 is one of the basis circle of bending part 110 Point, so-called basis circle refers to the circle at place before the non-bending of bending part 110；Arc o2 is place after the torsion of the first interval 111 Circle a part.And in another specific embodiment, when conductor segment is located at innermost layer, linkage section 113 is relative to stator The inclined of component, one of them in the first interval 111 and the second interval 112 can be relative to 113 edge of linkage section The radially inwardly torsion of stator module.
As shown in figure 3, the cross section of conductor segment 100 is rectangular shape, the both ends of middle connecting segment 113 are in stator module diameter Upward distance d1 is greater than the width d2 of the cross section of linkage section 113.As a result, when multiple same layer conductor segments 100 are inserted into simultaneously After in the stator slot 210 of stator core 200, the anti-interference effect between adjacent conductor segment is more preferable.
Certainly, the present invention is not limited thereto.In other embodiments of the invention, the first interval 111 and the second interval 112 can also be straightway (not shown go out).In this case, radial direction of the linkage section 113 relative to stator module Inclination, angle α 1, the second interval 112 between the first interval 111 and linkage section 113 and the angle α 2 between linkage section 113 are equal For obtuse angle.Preferably, α 1 is not equal to α 2, thereby may be ensured that preferable anti-interference effect.
According to some embodiments of the present invention, as shown in Fig. 2, the first slot inner part 120 and the first interval 111 are located at first In the Y1 of face, the second slot inner part 130 and the second interval 112 are located in the second face Y2.Optionally, the first face Y1 be arcwall face or Plane, the second face Y2 are arcwall face or plane.That is, when the first interval 111 and the second interval 112 are arc segment, As shown in Fig. 2, the first face Y1 and the second face Y2 are cambered surface.And when the first interval 111 and the second interval 112 are straightway When, the first face Y1 and the second face Y2 are plane (not shown go out).Thus, it is possible to more guarantee the compact-sized journey of stator winding Degree.
In some embodiments of the invention, any cross section perpendicular to its extending direction of the conductor segment 100 is equal For rectangular shape.Optionally, any cross section of conductor segment is rectangular shape, and rectangular short side is perpendicular to stator slot 210 Bottom wall.Still optionally further, on the extending direction of conductor segment, the cross section of conductor segment is identical.In a specific embodiment In, same layer conductor segment 100 is made of flat type copper wire.
By using rectangular-shaped cross section conductor segment 100, so that position on the one hand can be made when being inserted into stator slot It is compact-sized between the first or second slot inner part of adjacent trench layers, it on the other hand can guarantee the complete of surface insulation coat of paint It is whole, to guarantee excellent insulation performance.
Below with reference to the conductor segment 100 of Fig. 1-Fig. 4 description accord to a specific embodiment of that present invention.
As shown in Figure 1, conductor segment 100 includes bending part 110, the first slot inner part 120 and second according to this embodiment Slot inner part 130.In the present embodiment, as illustrated in fig. 1 and 2, conductor segment 100 is made of flat type copper wire.
As shown in Figures 2 and 3, bending part 110 includes the first interval 111, the second interval 112 and is connected to the first interval 111 and the second linkage section 113 between interval 112, the first interval 111 and the second interval 112 are arcuate shape.
First slot inner part 120 is connected to one end of the separate linkage section 113 of the first interval 111, the second slot inner part 130 It is connected to one end of the separate linkage section 113 of the second interval 112.As shown in Figure 3 and Figure 4, linkage section 113 is relative to stator module Inclined, on the basis of arc o1, by the first interval 111 relative to linkage section 113 towards radially outer side To torsion, such as arc o2.
Wherein, the both ends of linkage section 113 distance d1 in the radial direction is greater than the width d2 of the cross section of linkage section 113.
Meanwhile first slot inner part 120 and the first interval 111 be located in the first face Y1, the second slot inner part 130 and second Interval 112 is located in the second face Y2, wherein the first face Y1 and the second face Y2 are cambered surface, as shown in Figure 2.
Conductor segment 100 further include: first connecting portion 141 and second connecting portion 142, the first weld part 151 and the second welding Portion 152, first connecting portion 141 are connected between the first slot inner part 120 and the first weld part 151, and first connecting portion 141 is opposite In 120 bending of the first slot inner part, the first weld part 151 is relative to 141 bending of first connecting portion and flat with first connecting portion 141 Row.Second connecting portion 142 is connected between the second slot inner part 130 and the second weld part 152, second connecting portion 142 relative to Second slot inner part, 130 bending, the second weld part 152 are relative to 142 bending of second connecting portion and flat with second connecting portion 142 Row.Wherein the free end of the first weld part 151 and the second weld part 152 all has corner portion 160.
The outer surface of corner portion 160 has angle β, angle β >=45 degree, and corner portion in inclined-plane and between horizontal plane 160 are all formed as inverted cone surface shape in the end of the second weld part 152 and the first weld part 151.Further, corner portion 160 Height h≤2mm, in order to weld.
In addition, according to conductor segment in above-described embodiment the production method is as follows:
When being fabricated to U-shaped coil, the font flat type copper wire both sides " U " are compressed by arc surface tooling or equipment, to two straight lines Arc surface control it is different, internal layer edge straight line portion is toward notch direction rotation offset, outer layer side and stator core inner circle iron core With one heart, it is not necessarily to rotation offset, schematic diagram is as shown in figure 4, straight line and outer layer side connector justify o1 (with stator core on basis 200 inner circle is concentric) at, internal layer side circular arc such as o2.Wedge angle is cut at " U " font flat type copper wire both ends with cambered surface feature, it is offline After entering iron core, welding ends twisting formation, coil final molding is as shown in Figure 1-Figure 3 at this time.
Conductor segment according to the above embodiment of the present invention, the structure for being inserted into the entire stator winding formed after stator core are tight It gathers, while can also guarantee good insulation performance.
A kind of motor of embodiment according to a third aspect of the present invention, including the stator described according to that above embodiment of the present invention Component.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ", The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot Structure, material or feature are included at least one embodiment or example of the invention.In the present specification, to above-mentioned term Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description Point can be combined in any suitable manner in any one or more of the embodiments or examples.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this The range of invention is defined by the claims and their equivalents.
Claims (19)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710910192.3A CN109586446A (en) | 2017-09-29 | 2017-09-29 | Conductor segment and stator module, motor |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710910192.3A CN109586446A (en) | 2017-09-29 | 2017-09-29 | Conductor segment and stator module, motor |
| PCT/CN2018/108643 WO2019062917A1 (en) | 2017-09-29 | 2018-09-29 | Conductor segment, stator assembly and motor |
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| Publication Number | Publication Date |
|---|---|
| CN109586446A true CN109586446A (en) | 2019-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710910192.3A CN109586446A (en) | 2017-09-29 | 2017-09-29 | Conductor segment and stator module, motor |
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| Country | Link |
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| CN (1) | CN109586446A (en) |
| WO (1) | WO2019062917A1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106415995A (en) * | 2014-04-17 | 2017-02-15 | 法雷奥电机设备公司 | Outer stator of an electric machine, comprising open slots |
| CN106410995A (en) * | 2015-07-31 | 2017-02-15 | 株式会社电装 | Stator for rotating electric machine |
| CN106787290A (en) * | 2017-01-21 | 2017-05-31 | 浙江方正电机股份有限公司 | A kind of stator structure of three-phase motor and motor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4252360B2 (en) * | 2003-05-21 | 2009-04-08 | 三菱電機株式会社 | Rotating electric machine stator |
| DE102012108943A1 (en) * | 2011-09-24 | 2013-03-28 | Denso Corporation | Rotating electrical machine |
-
2017
- 2017-09-29 CN CN201710910192.3A patent/CN109586446A/en active Search and Examination
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2018
- 2018-09-29 WO PCT/CN2018/108643 patent/WO2019062917A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106415995A (en) * | 2014-04-17 | 2017-02-15 | 法雷奥电机设备公司 | Outer stator of an electric machine, comprising open slots |
| CN106410995A (en) * | 2015-07-31 | 2017-02-15 | 株式会社电装 | Stator for rotating electric machine |
| CN106787290A (en) * | 2017-01-21 | 2017-05-31 | 浙江方正电机股份有限公司 | A kind of stator structure of three-phase motor and motor |
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| WO2019062917A1 (en) | 2019-04-04 |
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