CN110492642A - Reduce the machine winding of copper loss - Google Patents
Reduce the machine winding of copper loss Download PDFInfo
- Publication number
- CN110492642A CN110492642A CN201910866734.0A CN201910866734A CN110492642A CN 110492642 A CN110492642 A CN 110492642A CN 201910866734 A CN201910866734 A CN 201910866734A CN 110492642 A CN110492642 A CN 110492642A
- Authority
- CN
- China
- Prior art keywords
- central conductor
- winding
- end leads
- section
- core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004804 winding Methods 0.000 title claims abstract description 64
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 18
- 239000010949 copper Substances 0.000 title claims abstract description 18
- 239000004020 conductor Substances 0.000 claims abstract description 59
- 230000017525 heat dissipation Effects 0.000 claims description 11
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008111 motor development Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- 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
- H02K3/24—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2203/00—Specific aspects not provided for in the other groups of this subclass relating to the windings
- H02K2203/06—Machines characterised by the wiring leads, i.e. conducting wires for connecting the winding terminations
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Windings For Motors And Generators (AREA)
Abstract
This patent provides that a kind of resistance is small, can reduce the machine winding of copper loss, it is welded with the conducting wire for passing through winding slot of core, and the resistivity of the end leads outside winding slot of core is less than the resistivity for the central conductor being located in winding slot of core.This patent is different from conventional winding, and this patent is less than the technology positioned at central conductor using the resistivity of end leads, the resistance of end leads is reduced, so that the resistance of machine winding is reduced, so that electric efficiency is improved.
Description
Technical field
This patent is related to the strip conductor winding of machine winding, especially flat wire motor.
Background technique
When electric current flows through machine winding, because the reason of winding resistance, can generate heat and cause to be lost, because of most of winding
It is made of copper product, therefore " copper loss " is claimed to be also referred to as " copper loss " a kind of active loss.High efficiency electric is current motor development
Direction, and the optimal path for improving electric efficiency be improve copper factor, that is, reduce winding resistance, to reduce motor
(i.e. copper loss) is lost in heating in winding.In order to improve copper factor, strip conductor winding becomes current one of motor Main way, should
Technology improves space utilization rate, increases the sectional area of copper, to reduce the resistance of winding by using rectangular conductor.But
The space of winding slot of core is limited, completely fills out and (is equivalent to copper factor 100%, is exactly to be stuffed entirely with copper in winding slot of core after copper
Line), resistance just cannot be reduced again.
Summary of the invention
The purpose of this patent is to provide that a kind of resistance is small, can reduce the machine winding of copper loss.
The machine winding of copper loss is reduced described in this patent, is welded with passing through the conducting wire of winding slot of core, in iron core line
The resistivity of end leads outside slot is less than the resistivity for the central conductor being located in winding slot of core.
As the further improvement to above-mentioned machine winding, the sectional area of end leads is greater than the section of central conductor
Product, so that the resistivity of end leads is less than central conductor.
As the further improvement to above-mentioned machine winding, the section of end leads is rectangle.Since end leads need
It welds, reverse, using rectangular section welding, the more convenient operation of torsion, improve the craftsmanships such as preparation, welding.
As the further improvement to above-mentioned machine winding, thick two sides are thin in the middle part of the section of central conductor or middle part is thin
Two sides are thick, form heat dissipation channel between the thinner part of adjacent central conductor.In this way, just having heat dissipation logical in core interior
Road meets the cooling requirements of iron core, conducting wire.For example, the section of central conductor be diamond shape or near-rhombic, it is trapezoidal or approximate
It is trapezoidal.
As the further improvement to above-mentioned machine winding, the cross sectional shape of end leads and the section shape of central conductor
Shape is different, so that the resistivity of end leads is less than central conductor.
Beneficial effects of the present invention: the conducting wire of machine winding is constituted, (part is referred to as a part in winding slot of core
Central conductor), it is outer (part is referred to as end leads) that a part is located at iron core.Conventional winding, the cross sectional shape of conducting wire,
Size is constant, that is to say, that whether end leads or central conductor, resistivity are identical for it.If winding
Three resistance series connection that half turn conducting wire regards central conductor as, two sections of end leads are formed, conventional winding, the resistance of three section leads
Rate is equal.
This patent is different from conventional winding, and this patent is less than the skill positioned at central conductor using the resistivity of end leads
Art, reduces the resistance of end leads, so that the resistance of machine winding is reduced, so that electric efficiency is improved.
It positioned at the central conductor part of core interior, is limited by winding slot of core space, after copper factor reaches a certain level, just
It cannot increase again, and the end leads part being located at outside iron core can take end since iron core exterior space is larger
Sectional area of wire is greater than the method for the central conductor sectional area of core interior, reduces the resistance of winding.As shown in Figure 1, this patent
End leads 1,3 sectional areas be greater than central conductor 2, end leads resistivity be less than central conductor, (adopted relative to conventional winding
And the central conductor section of this patent is identical, material is also identical as the conducting wire in this patent with each cross sectional shape, size
Conducting wire be made), the equivalent resistance R1 and R3 of the end leads of this patent, less than the equivalent electricity of the end leads of conventional winding
Therefore resistance has smaller winding resistance, so that electric efficiency is improved.
In addition, can also use different cross sectional shapes even if end leads and central conductor use same cross-sectional area, make
The resistivity for obtaining end leads is less than central conductor, reduces the resistance of machine winding on the whole.
This patent reduces the resistance of winding by the method for conducting wire unequal section etc..Section of this patent to end leads
Shape with no restrictions, can be identical as the cross sectional shape of central conductor, can also be different.But due to end leads need weld or
Torsion, is more suitable for using rectangular section.
This patent to the cross sectional shape of central conductor with no restrictions, but if needing core interior that there is heat dissipation channel, in
Between the section of conducting wire can be using the thin shape in middle part thickness two sides (such as diamond shape, trapezoidal), the two sides of central conductor adjacent in this way
Heat dissipation channel is formd between thinner part, alternatively, the section of central conductor can use the shape of the thin two sides thickness in middle part, in this way
Heat dissipation channel is formd between the middle part thinner part of adjacent central conductor, to meet the cooling requirements of iron core, conducting wire.
Detailed description of the invention
Fig. 1 is the half turn conducting wire schematic diagram of winding；
Fig. 2 is the half turn conducting wire schematic equivalent circuit of winding；
Fig. 3 is winding expanded schematic diagram；
Fig. 4 is two adjacent central conductor schematic diagrames (rectangular section)；
Fig. 5 is two adjacent central conductor schematic diagrames (near-rhombic section)；
Fig. 6 is two adjacent central conductor schematic diagrames (trapezoid cross section)；
Fig. 7 is two adjacent central conductor schematic diagrames (thick two sides are thin in the middle part of section).
Specific embodiment
Referring to the machine winding for reducing copper loss shown in Fig. 1,3, it is welded with passing through the conducting wire 5 of winding slot of core, conducting wire
Including the end leads 1,3 outside winding slot of core and the central conductor 2 in winding slot of core.
The cross sectional shape of end leads and central conductor are same or different, sectional area and the central conductor phase of end leads
It is same or different, but the resistivity of end leads 1,3 is less than central conductor 2.For example, the sectional area of end leads is led greater than centre
The sectional area of line, so that the resistivity of end leads is less than central conductor.
The section of end leads 1,3 is rectangle.
The section of central conductor 2 can be rectangle (referring to fig. 4), but be capable of forming heat dissipation channel 4 between preferential use
Non-rectangular cross-section.For example, with reference to Fig. 7,21 is thicker in the middle part of the section of central conductor, and two sides 22 are relatively thin, and the two of adjacent central conductor
Heat dissipation channel 4 is formd between the thinner part of side；Alternatively, the thin two sides 22 in 21 middle part of section of central conductor are thick referring to Fig. 5,6,
Heat dissipation channel 4 is formd between the middle part thinner part of adjacent central conductor, winding is flowed through for fluid and cools down winding.Fig. 5
In central conductor section near-rhombic, the section of the central conductor in Fig. 6 is trapezoidal.Central conductor it is non-rectangle between shape
At space, and the end leads outside winding slot of core are that rectangle has good welding performance.
In addition, different cross section shape needs motor even if having same cross-sectional area using end leads and central conductor
The motor for wanting internal heat dissipating, is also advantageous.The central conductor of core interior can take non-rectangular cross-section (such as Fig. 5,6,7
Shown in near-rhombic or trapezoidal or other shapes, make to form heat dissipation channel between conducting wire, flow through winding for fluid and cool down
Winding), end leads need to weld or turn one's head, then rectangular section is more suitable for.It not only can satisfy heat dissipation needs in this way, but also can expire
Sufficient end connection needs.
The meaning of the innovation is, makes winding using different sections by outer conductor in iron core, further decrease around
Group resistance, or improve craftsmanship.The concrete shape of conductor cross-section, the difference in areas size of conductor cross-section, the structure of winding, Yi Jitie
Core, groove profile etc. do not influence the claims of this patent.
Claims (6)
1. reducing the machine winding of copper loss, it is welded with passing through the conducting wire of winding slot of core, it is characterized in that: outside winding slot of core
End leads resistivity be less than be located at winding slot of core in central conductor resistivity.
2. machine winding as described in claim 1, it is characterized in that: the sectional area of end leads is greater than the section of central conductor
Product, so that the resistivity of end leads is less than central conductor.
3. machine winding as described in claim 1, it is characterized in that: the section of end leads is rectangle.
4. machine winding as described in claim 1, it is characterized in that: thick two sides are thin in the middle part of the section of central conductor or middle part is thin
Two sides are thick, form heat dissipation channel between the thinner part of adjacent central conductor.
5. machine winding as claimed in claim 4, it is characterized in that: the section of central conductor be diamond shape, it is trapezoidal.
6. machine winding as described in claim 1, it is characterized in that: the section shape of the cross sectional shape of end leads and central conductor
Shape is different, so that the resistivity of end leads is less than central conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910866734.0A CN110492642A (en) | 2019-09-12 | 2019-09-12 | Reduce the machine winding of copper loss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910866734.0A CN110492642A (en) | 2019-09-12 | 2019-09-12 | Reduce the machine winding of copper loss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110492642A true CN110492642A (en) | 2019-11-22 |
Family
ID=68557803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910866734.0A Pending CN110492642A (en) | 2019-09-12 | 2019-09-12 | Reduce the machine winding of copper loss |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110492642A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2627303A (en) * | 2023-02-20 | 2024-08-21 | Imra Europe S A S | Winding arrangement for an electrical machine |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05308737A (en) * | 1992-04-28 | 1993-11-19 | Mitsubishi Electric Corp | Armature, winding conductor and manufacture of conductor |
| CN102136770A (en) * | 2010-01-22 | 2011-07-27 | 株式会社电装 | Stator for electric rotating machine with enhanced cooling ability |
| CN103248185A (en) * | 2012-02-06 | 2013-08-14 | 温岭市木田机电有限公司 | Generator rotor with radiating branch sheet blocking plates |
| CN105790479A (en) * | 2016-04-05 | 2016-07-20 | 中国船舶重工集团公司第七〇二研究所 | Ship propulsion motor and stator coil winding method thereof |
| CN108258819A (en) * | 2016-12-29 | 2018-07-06 | 哈尔滨东专科技有限公司 | The method for reducing induction machine copper loss and end leakage reactance |
| CN108988593A (en) * | 2018-08-09 | 2018-12-11 | 苏州阿福机器人有限公司 | Machine winding production method and winding construction |
| CN109474101A (en) * | 2018-11-28 | 2019-03-15 | 华中科技大学 | Radial flux iron-core-free winding, preparation process and the magneto with the winding |
| CN210183119U (en) * | 2019-09-12 | 2020-03-24 | 苏州阿福机器人有限公司 | Motor winding capable of reducing copper loss |
-
2019
- 2019-09-12 CN CN201910866734.0A patent/CN110492642A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05308737A (en) * | 1992-04-28 | 1993-11-19 | Mitsubishi Electric Corp | Armature, winding conductor and manufacture of conductor |
| CN102136770A (en) * | 2010-01-22 | 2011-07-27 | 株式会社电装 | Stator for electric rotating machine with enhanced cooling ability |
| CN103248185A (en) * | 2012-02-06 | 2013-08-14 | 温岭市木田机电有限公司 | Generator rotor with radiating branch sheet blocking plates |
| CN105790479A (en) * | 2016-04-05 | 2016-07-20 | 中国船舶重工集团公司第七〇二研究所 | Ship propulsion motor and stator coil winding method thereof |
| CN108258819A (en) * | 2016-12-29 | 2018-07-06 | 哈尔滨东专科技有限公司 | The method for reducing induction machine copper loss and end leakage reactance |
| CN108988593A (en) * | 2018-08-09 | 2018-12-11 | 苏州阿福机器人有限公司 | Machine winding production method and winding construction |
| CN109474101A (en) * | 2018-11-28 | 2019-03-15 | 华中科技大学 | Radial flux iron-core-free winding, preparation process and the magneto with the winding |
| CN210183119U (en) * | 2019-09-12 | 2020-03-24 | 苏州阿福机器人有限公司 | Motor winding capable of reducing copper loss |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2627303A (en) * | 2023-02-20 | 2024-08-21 | Imra Europe S A S | Winding arrangement for an electrical machine |
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