CN202309292U - Three-phase current motor winding of six-flat-surface double single layer humid stator - Google Patents
Three-phase current motor winding of six-flat-surface double single layer humid stator Download PDFInfo
- Publication number
- CN202309292U CN202309292U CN2011204519762U CN201120451976U CN202309292U CN 202309292 U CN202309292 U CN 202309292U CN 2011204519762 U CN2011204519762 U CN 2011204519762U CN 201120451976 U CN201120451976 U CN 201120451976U CN 202309292 U CN202309292 U CN 202309292U
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- China
- Prior art keywords
- phase current
- current motor
- winding
- motor winding
- stator
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- 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 - Lifetime
Links
- 238000004804 winding Methods 0.000 title claims abstract description 51
- 239000002356 single layer Substances 0.000 title abstract 3
- 230000009977 dual effect Effects 0.000 claims description 12
- 238000001816 cooling Methods 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Windings For Motors And Generators (AREA)
Abstract
The utility model aims to provide a three-phase current motor winding of a six-flat-surface double single layer humid stator, and the three-phase current motor winding can form multiple independent waterflow cooling channels on a winding head, and can be used for better improving end cooling conditions and improving the operational reliability. The three-phase current motor winding provided by the utility model comprises a stator core, wherein the stator core is provided with multiple neck grooves, and coils are wound on the neck grooves. The three-phase current motor winding is characterized in that the coils wound on the same neck groove of the stator core are classified into upper-layer and lower-layer windings, and the winding of each layer is equally divided into three flat surfaces, wherein each flat surface is composed of two pole group coils which are inphase. The three-phase current motor winding of the six-flat-surface double single layer humid stator provided by the utility model has the advantages of simple process, convenience in manufacture and reduced winding strided distance; and materials are saved, cooling conditions are improved, the operational reliability is improved, the service life is prolonged, and the three-phase current motor winding is suitable for the use of a boiler circulation pump motor for a heavy-duty generator group under a high-pressure and high-temperature working condition.
Description
Technical field
The utility model belongs to the motor manufacturing technology field, specially refers to a kind of six plane dual single three-phase current motor with wet stator windings.
Background technology
The above Generator Set of 30MW is in order to improve boiler thermal efficiency, to ensure the general supporting use boiler water circulating pump of boiler safety; Boiler pump motor is the driving arrangement that is used to drive factory's boiler water circulating pump; Water-in and water-out pipeline through boiler water circulating pump is connected in the pipe-line system of boiler; For the circulation of boiler working medium provides power, can reduce fuel consumption and improve generating efficiency.
Boiler working medium is pressure 30MPa; The high-temperature high pressure water of temperature more than 300 ℃; Boiler pump motor and forced circulation pump are direct connections, and Sealing Technology is difficult to accomplish high-temperature high pressure water and boiler pump motor are carried out perfect isolation at present, and therefore present technology is to utilize the Incoercibility of water; Boiler pump motor is installed in the airtight container of fills with water, so boiler pump motor is a kind of special wet stator type submersible motor.In service in order to distribute motor because the heat that various power losss such as copper loss, iron loss and mechanical water abrasion etc. produce; Have a small impeller on rotor is coaxial; Produce recirculated cooling water stream during rotation; Make the water of motor cavity form heat exchange with outer hp heat exchanger, outer hp heat exchanger is taken away heat with water-water-cooled mode.This heat exchange is taken away pressure piping simultaneously with the heat that heat exchange pattern passes to motor, the condition of work of boiler pump motor is remained in the water environment below 50 ℃ work.
Because the running parameter of generation current unit constantly improves, required boiler pump motor power is increasing, and rotating speed is more and more faster, and the generating set of 1000MW generally adopts the above boiler pump motor of 2 utmost point 500kW at present.Because traditional boiler pump motor adopts double-deck overlapping formula winding, the winding span is big, the end is long, and waste of material is serious, and winding overhang do not have effective cooling water channel, and cooling condition is poor, and cooling circulating water is difficult to be cooled to the inside of end coil.Under the infiltration and heat conducting influence of high temperature furnace water, local temperature is up to more than 150 ℃, causes winding wire insulation distortion, finally causes insulation damages and can not work.
The utility model content
The purpose of the utility model is through the improvement to the short square lap winding of traditional bilayer; Provide a kind of and can form a plurality of independently current cooling duct at winding overhang; Can improve the end cooling condition preferably, improve six plane dual single three-phase current motor with wet stator windings of operational reliability.
The six plane dual single three-phase current motor with wet stator windings of the utility model comprise stator core; Said stator core is provided with a plurality of wire casings; Be wound with coil on the said wire casing; Key is that the coil of coiling on the same wire casing of said stator core is divided into upper and lower two-layer winding, and said every layer of winding is divided into three planes, and wherein each plane is made up of to the group coil two utmost points of homophase.
Above-mentioned motor winding can form at least 12 independently current cooling ducts at winding overhang through the improvement to the short square lap winding of traditional bilayer, can improve the end cooling condition preferably.In addition, because upper strata winding and lower floor's winding are respectively two to overlap independently winding, in homophase, can also can be stagger a groove or a few groove with groove, therefore can reduce the harmonic magnetic potential content of winding.Same because the upper coil number of turn in the same groove and the inner coil number of turn can equate or not wait; Compare with double-deck short distance winding; The ability of adjusting winding the harmonics of magnetic force content is more flexibly arranged, can autotelicly carry out winding optimization, reduce a series of the harmonics of magnetic force content that need reduction.
Specifically can be provided with as follows: said each utmost point is organized coil mutually and is made up of two coils, and the span of said two coils is respectively 11,9 wire casings; Perhaps said each utmost point is organized coil mutually and is made up of three coils, and the span of said three coils is respectively 17,15,13 wire casings; The wire casing of said stator core can be 24 or 36.
The six plane dual single three-phase current motor with wet stator winding technologies of the utility model are simple, easy to make, reduced the winding span; Saved material; Improved cooling condition; Can improve operational reliability, increase the service life, the Generator Set that is suitable for operation under high temperature and high pressure condition is used with the boiler water circulating pump motor.
Description of drawings
Fig. 1 is the structural representation of the six plane dual single three-phase current motor with wet stator windings of the utility model.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the expanded view of the six plane dual single three-phase current motor with wet stator windings of the utility model.
Symbol description among Fig. 3: 1,2......36 is a wire casing groove number; I, II, III, IV, V, VI are that the plane code name of winding: A1, Z1...... are the code name of winding interior loop conductor.
Embodiment
Contrast accompanying drawing below; Through description, the effect of the mutual alignment between the shape of the embodiment of the utility model such as related each member, structure, the each several part and annexation, each several part and operation principle etc. are done further to specify to embodiment.
Embodiment 1:
Like Fig. 1,2, shown in 3; Six plane dual single three-phase current motor with wet stator windings of present embodiment comprise the stator core 2 that is arranged in the electric machine casing 1; Stator core 2 is provided with 36 wire casings; Be wound with coil on the wire casing, wherein the coil of coiling is divided into upper strata winding 4, lower floor's winding 3 on the same wire casing of stator core 2, and every layer of winding is divided into three planes; Being lower floor's winding (4) is made up of first plane 5, second plane 6, the 3rd plane 7, and upper strata winding 4 is made up of Siping City's face 8, the 5th plane 9, the 6th plane 10; Wherein each plane is made up of to the group coil two utmost points of homophase, and each utmost point is organized coil mutually and is made up of three coils, and the span of three coils is 17,15,13 wire casings.
The number of turn of the upper coil 4 in the same wire casing and the number of turn of inner coil 3 can be designed to equate or do not wait according to concrete needs; Upper coil 4 in the same wire casing can be designed to homophase or out-phase according to concrete needs with inner coil 3, and the connection between the coil can be designed to serial or parallel connection according to concrete needs.
Claims (4)
1. plane dual single three-phase current motor with wet stator winding; Comprise stator core; Said stator core is provided with a plurality of wire casings, is wound with coil on the said wire casing, it is characterized in that the coil of coiling on the same wire casing of said stator core is divided into upper and lower two-layer winding; Said every layer of winding is divided into three planes, and wherein each plane is made up of to the group coil two utmost points of homophase.
2. six plane dual single three-phase current motor with wet stator windings according to claim 1 is characterized in that said each utmost point organizes coil mutually and be made up of two coils, and the span of said two coils is respectively 11,9 wire casings.
3. six plane dual single three-phase current motor with wet stator windings according to claim 1 is characterized in that said each utmost point organizes coil mutually and be made up of three coils, and the span of said three coils is respectively 17,15,13 wire casings.
4. according to claim 1 or 2 or 3 described six plane dual single three-phase current motor with wet stator windings, the wire casing that it is characterized in that said stator core is 24 or 36.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204519762U CN202309292U (en) | 2011-11-15 | 2011-11-15 | Three-phase current motor winding of six-flat-surface double single layer humid stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204519762U CN202309292U (en) | 2011-11-15 | 2011-11-15 | Three-phase current motor winding of six-flat-surface double single layer humid stator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202309292U true CN202309292U (en) | 2012-07-04 |
Family
ID=46378105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204519762U Expired - Lifetime CN202309292U (en) | 2011-11-15 | 2011-11-15 | Three-phase current motor winding of six-flat-surface double single layer humid stator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202309292U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103780029A (en) * | 2014-02-13 | 2014-05-07 | 安徽安凯汽车股份有限公司 | Wire winding method for three-phase double-layer concentric type winding and three-phase alternating current motor |
-
2011
- 2011-11-15 CN CN2011204519762U patent/CN202309292U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103780029A (en) * | 2014-02-13 | 2014-05-07 | 安徽安凯汽车股份有限公司 | Wire winding method for three-phase double-layer concentric type winding and three-phase alternating current motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120704 |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Patent of Hefei Wanhua Motor Technology Development Co.,Ltd. The person in charge Document name: Notice of expiration and termination of patent right |