CN200976519Y - Multi-layer circular reducing windings - Google Patents
Multi-layer circular reducing windings Download PDFInfo
- Publication number
- CN200976519Y CN200976519Y CN 200620021674 CN200620021674U CN200976519Y CN 200976519 Y CN200976519 Y CN 200976519Y CN 200620021674 CN200620021674 CN 200620021674 CN 200620021674 U CN200620021674 U CN 200620021674U CN 200976519 Y CN200976519 Y CN 200976519Y
- Authority
- CN
- China
- Prior art keywords
- winding
- motor
- group
- phase
- diameter
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Windings For Motors And Generators (AREA)
Abstract
The utility model discloses a multi-layer round variable diameter winding, which adopts the circular cable winding made of cross-linked polyethylene materials. In the electric motor the circular cable is made into a multi-layer variable diameter structure; the multi-layer winding refers to more than three layers in the electric motor; variable diameter winding refers to that the winding with the same phase in the electric motor has two different diameter leads, which forms the neutral point of the motor stator winding, one phase winding is formed by the big diameter group and the small diameter group in each phase in transitional connection. The utility model realizes the direct connection of the electric motor and electric fence, omits the complex middle process and greatly improves the reliability of the electric power system operation and reduces the operation and the maintenance costs of electric system.
Description
Technical field:
The utility model relates to the circular reducing winding of a kind of multilayer.
Technical background:
Generally speaking, the stator winding of alternating current machine is the polyphase ac winding.The polyphase ac winding is rectangle, same specification lead formation except that the diffusing winding that rolls off the production line.It is furnished with individual layer and double-deck two kinds of structures.This winding construction finalizes the design almost in hydraulic generator, turbo generator, synchronous machine and asynchronous machine in company with existing insulation level.High speed development along with electric power system and electric manufacturing, the network configuration pattern of traditional electrical network---transformer---motor is owing to exist characteristics such as complex structure, the operation maintenance amount is big, reliability is low, being tending towards backward, being necessary to electrical network---the direct connection mode of motor changes.In fact, in the electric power system existence of transformer because excessive the causing of voltage phase difference of electrical network and motor.In order to reduce transmission line loss, electric power system need adopt high voltage power transmission, and line voltage is very high like this.And limit by insulation level, traditional motor terminal voltage can't adapt with the requirement of electrical network.
Summary of the invention: the purpose of this utility model provides a kind of motor of can realizing and is connected with the direct of electrical network, improves the reliability of power system operation, reduces the circular reducing winding of multilayer of the operation and maintenance cost of electric power system.The purpose of this utility model realizes by following structure: the utility model is the circular reducing winding of a kind of multilayer, the round cable winding that adopts cross-linking polyethylene materials to constitute, in motor, make the multilayer variable-diameter structure, the multilayer winding refers to that the winding number of plies in the motor is more than three layers, the reducing winding refers to contain in the same phase winding of motor the lead of two kinds of different-diameters, wherein, the lead of minor diameter is interconnected to form one group of conductor, be called the minor diameter group, and large diameter lead is interconnected to form one group of conductor, be called the major diameter group, every phase minor diameter group and major diameter group are connected mutually, constitute a phase winding of motor, and the end points of every phase winding minor diameter one side interconnects, constitute the neutral point of motor stator winding, every phase major diameter group adopts transition to be connected the common phase winding that constitutes with the minor diameter group.Analyze and test and show that the electric current of round conductor is on its surface and produce uniform electric field on every side, does not have the concentration phenomenon of the electric field strength of rectangular conductor surface corner.So the electric field strength that the insulation of round conductor can be born is more than the rectangular conductor height.Adopt the circular reducing winding of multilayer, can improve the voltage levvl of alternating current machine significantly by crosslinked polyetylene insulated technology, thereby progressively realize superelevation Hair Fixer (usefulness), progressively dwindle the gap of line voltage and electric moter voltage, realize that electrical network connects with the direct of motor.Adopt circular reducing cable winding, the normal mode of the single, double layer of the motor that must break traditions winding is carried out the multilayer winding and is arranged, and the motor anode-cathode voltage is improved.The high voltage output problem that the utility model solves motor can realize that motor is connected with the direct of electrical network, removes complicated intermediate link thus from, greatly improves the reliability of power system operation, reduces the operation and maintenance cost of electric power system.
Description of drawings
Fig. 1 is that the flute profile of ten layers of winding reducing winding distributes
Fig. 2 is ten layers of conductor arrangement in the winding reducing slot for winding
The conductor structure of Fig. 3 round cable winding
A kind of scheme that Fig. 4 multilayer reducing winding is arranged
Fig. 5 is the schematic diagram that is electrically connected of multilayer reducing winding
The surface field of Fig. 6 round cable winding and rectangle winding distributes and contrasts
Embodiment
The round cable winding that the utility model adopts cross-linking polyethylene materials to constitute, in motor, make the multilayer variable-diameter structure, the multilayer winding refers to that the winding number of plies in the motor is more than three layers, the reducing winding refers to contain in the same phase winding of motor the lead of two kinds of different-diameters, wherein, the lead of minor diameter is interconnected to form one group of conductor, be called the minor diameter group, and large diameter lead is interconnected to form one group of conductor, be called the major diameter group, every phase minor diameter group and major diameter group are connected mutually, constitute a phase winding of motor, the end points of every phase winding minor diameter one side interconnects, and constitutes the neutral point of motor stator winding, and every phase major diameter group adopts transition to be connected the common phase winding that constitutes with the minor diameter group.
(1) winding is circular twisted polyethylene cable structure, belongs to motor private cable winding.It is shown in Figure 3 that the spatial placement of circular polyethylene cable windings and conductor structure see that Fig. 1 arrives.As shown in Figure 3, the conductor structure of round cable winding is followed successively by from inside to outside: cable strands 1, internal layer semiconductor layer 2, solid insulation 3, outer semiconductor layer 4.
(2) for the winding of Y-connection,, on same set of winding, adopt the conductor of two kinds of diameters from improving the angle of motor material utilance.Be that every phase winding is made of two kinds of conductors, the major diameter conductor is interconnected to constitute the major diameter group, and the minor diameter conductor is interconnected to constitute the minor diameter group.Major diameter group and minor diameter group are composed in series a phase winding mutually.Every phase winding has two end points, and the end points of minor diameter group side is as the neutral point of motor stator winding and the corresponding endpoint short circuit of other several phase windings.
The spatial placement of concrete winding is seen Fig. 1 and shown in Figure 4, and it is shown in Figure 5 that being electrically connected of winding seen.Fig. 2 has provided interior layout of groove of little conductor winding and big conductor winding and has illustrated.Fig. 5's
Be electrically connected middle a1, b1, c1 is the minor diameter group, a2, b2, c2 are the major diameter group.
The series connection of (3) two kinds of diameter conductors need adopt transition to connect, and excessively connection can adopt several different methods to carry out, and one is prefabricated cable transition joint technology, and two for adopting the European cable interconnection technique of intermediate casing.Two kinds of connected modes aspect power cable symbolic animal of the birth year to mature technology.
(4) on arranging, in order to obtain required magnitude of voltage, adopt the multilayer winding construction, the number of plies of winding can reach 3 layers to 20 layers.Figure 1 shows that change deployment scenarios in the stator winding groove of 10 layers of winding electric machine.
As shown in Figure 6, analysis and test show that the electric current of round conductor is on its surface and produce uniform electric field on every side, does not have the concentration phenomenon of the electric field strength of the surperficial corner of rectangular conductor.
In design of electrical motor, determine the windings in series number of turn that motor stator is required according to the basic fundamental requirement of motor and the characteristics of multilayer reducing winding, again according to the turns-in-series of motor windings and the wire gauge (sectional dimension comprises copper conductors diameter, insulating barrier, anticorona coating thickness) and the stator slot shape of the definite motor windings of electromagnetic load requirement.Adjusting on the basis of whole electromagnetic scheme the further a whole set of multilayer reducing winding of structure, determine that the end connects technology (comprising transition joint and pigtail splice), can form relative conventional motors thus has New-type electric machine product than the satisfaction of quantum jump.
Claims (1)
1, the circular reducing winding of a kind of multilayer, it is characterized in that: the round cable winding that adopts cross-linking polyethylene materials to constitute, in motor, make the multilayer variable-diameter structure, the multilayer winding refers to that the winding number of plies in the motor is more than three layers, the reducing winding refers to contain in the same phase winding of motor the lead of two kinds of different-diameters, wherein, the lead of minor diameter is interconnected to form one group of conductor, be called the minor diameter group, and large diameter lead is interconnected to form one group of conductor, be called the major diameter group, every phase minor diameter group and major diameter group are connected mutually, constitute a phase winding of motor, and the end points of every phase winding minor diameter one side interconnects, constitute the neutral point of motor stator winding, every phase major diameter group adopts transition to be connected the common phase winding that constitutes with the minor diameter group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620021674 CN200976519Y (en) | 2006-09-18 | 2006-09-18 | Multi-layer circular reducing windings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620021674 CN200976519Y (en) | 2006-09-18 | 2006-09-18 | Multi-layer circular reducing windings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200976519Y true CN200976519Y (en) | 2007-11-14 |
Family
ID=38902799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620021674 Expired - Fee Related CN200976519Y (en) | 2006-09-18 | 2006-09-18 | Multi-layer circular reducing windings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200976519Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113890240A (en) * | 2020-07-02 | 2022-01-04 | 通用电气航空系统有限责任公司 | Method and system for electrically insulating parts of an electrical machine |
-
2006
- 2006-09-18 CN CN 200620021674 patent/CN200976519Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113890240A (en) * | 2020-07-02 | 2022-01-04 | 通用电气航空系统有限责任公司 | Method and system for electrically insulating parts of an electrical machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI815630B (en) | Stator, flat wire motor, powertrain, and vehicle | |
| CN107919757A (en) | A kind of flat type copper wire wave winding armature winding | |
| JP3906124B2 (en) | Armature coil of rotating machine | |
| JP2002027693A (en) | Coil conductor for dynamo-electric machine | |
| CN105634169B (en) | Three-phase multiple-grooved flat type copper wire generator stator of vehicle assembly | |
| CN108768033A (en) | The flat wire stator winding structure of motor | |
| CN111917211A (en) | Flat wire conductor stator winding of two branches and motor | |
| CN113241869B (en) | Flat wire motor stator and flat wire motor | |
| CN200976519Y (en) | Multi-layer circular reducing windings | |
| CN113809857A (en) | Multilayer hairpin type flat wire winding, stator and motor | |
| CN201242904Y (en) | Cable conductor capable of resisting skin effect | |
| CN218868002U (en) | Stator winding, stator and motor | |
| CN207530641U (en) | Flat type copper wire wave winding armature winding | |
| CN216959483U (en) | Four-branch parallel flat wire winding stator and motor with same | |
| CN109193991A (en) | Mixed winding topology and its method of construction and motor | |
| CN104347187A (en) | Layered split conductor | |
| CN208656532U (en) | The flat wire stator winding structure of motor | |
| CN114678989A (en) | Stator slot wiring structure and method for improving slot filling rate of motor of refrigeration compressor | |
| CN218771485U (en) | Multilayer flat wire winding and stator assembly | |
| CN111541330A (en) | Flat copper wire winding structure with 3 slots per pole per phase and motor | |
| CN110492647A (en) | A kind of suppressing method of air gap winding parallel branch circulation | |
| CN220291761U (en) | Flat wire motor stator and winding structure | |
| CN2233114Y (en) | Combined wire for winding coil | |
| CN216749041U (en) | Stator winding turn-to-turn short circuit fault simulation device of permanent magnet synchronous wind driven generator | |
| CN215835217U (en) | Flat wire motor stator and flat wire motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071114 Termination date: 20140918 |
|
| EXPY | Termination of patent right or utility model |