CN106549517A - Water-cooling system and the motor with the water-cooling system in a kind of stator slot - Google Patents
Water-cooling system and the motor with the water-cooling system in a kind of stator slot Download PDFInfo
- Publication number
- CN106549517A CN106549517A CN201611119454.6A CN201611119454A CN106549517A CN 106549517 A CN106549517 A CN 106549517A CN 201611119454 A CN201611119454 A CN 201611119454A CN 106549517 A CN106549517 A CN 106549517A
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- China
- Prior art keywords
- water
- cooling
- stator slot
- cooling system
- pipe
- Prior art date
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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
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses water-cooling system in a kind of stator slot, including：Interior Water-cooling circulating subsystem, which includes the water pipe (11) for being arranged on the stator slot bottom and notch, the water pipe (11) is connected with rubber hose (19) by seal nipple (18), the rubber hose (19) is by the seal nipple (18) and end ring (6, 7) connect, the end ring (6, 7) import (26) is provided with the outside of, inner side is provided with outlet (27), cooling water can be by the import (26) into the water pipe (11), take away the heat of winding in the stator and stator slot, and discharged by the outlet (27)；Outer Water-cooling circulating subsystem, which includes water- to-water heat exchanger (3), for cooling down to the water that the outlet (27) is discharged.The invention also discloses a kind of motor with the water-cooling system.The water-cooling system of the present invention, cooling effectiveness are high, solve the problems, such as that high power density Double-stator motor winding temperature rise is too high and rotor cooling difficulty.
Description
Technical field
The invention belongs to motor cooling technology field, and in particular in a kind of stator slot water-cooling system and have the water-cooled system
The motor of system.
Background technology
The features such as large-scale high power density permanent magnet motor is because of its efficiency high, high reliability and simple structure, nearly ten years
Progressively replace conventional synchronization motor and induction machine to obtain to compare and be widely applied, and advance in wind-driven generator and naval vessel
There is the great market demand etc. occasion.As there is strict restriction its application scenario to its size, in order to improve electricity
Machine unit volume is exerted oneself, and motor often has larger electromagnetism thermic load.The design of this high power density can increase motor
The heat production of unit volume during operation so that the temperature rise of the key position such as machine winding and magnet steel is raised, threatens the safety of motor steady
It is fixed to run.
The power density of magneto can further be improved using the design of bimorph transducer, the axial direction for greatly shortening motor is long
Degree so that motor is compacter.But double-stator permanent magnet motor, rotor are located in the middle of two stators, if in stator winding
Heat effectively can not scatter and disappear, it will the effect of heating is formed to rotor, and rotor temperature rise is often temperature rise highest position in motor,
This can substantially increase the irreversible demagnetization risk of rotor magnetic steel.Further, since the complexity of Double-stator motor structure, its cooling system
The design of system and layout are faced with very big challenge.The present invention proposes water-cooling system in a kind of stator slot, is specific to a kind of big
Type bimorph transducer high power density permanent magnet motor, to solve the problems, such as that its winding and center roller are difficult to cool down.
Due to the restriction of space and weight, high power density permanent magnet motor typically adopts annular water outside stator core
Set is cooled down to motor.Which arranges straight trough or spiral channel in casing, and the heat that winding is produced in stator first passes through hot biography
The mode of leading passes to stator tooth and yoke portion, is then passed in water jacket by iron core and is taken away by water.
But, motor is cooled down by the way of cooling jacket is set outside motor stator, its winding thermal source is relative to water jacket
Farther out, heat needs to be delivered to cooling medium by the conduction of core tooth part and yoke portion low-temperature receiver.Using this type of cooling
When, winding central temperature and core tooth part temperature all may be higher, therefore cooling effect is limited, especially for high power density
Double-stator permanent magnet motor, winding heat is difficult to be lost in cooling medium, causes the temperature of center roller very high, can be easy to
Cause the irreversible demagnetization of motor.
In order to solve the above problems, in prior art, there is the technology cooled down to motor by the way of forced air cooling
Scheme, cools down wind by the effect axial direction of fan or radial through motor effective member to take away heat.Using forced air cooling
Cooling motor, although which can be directly cooled down to the heat generating components of motor, due to air-cooled type of cooling cooling energy
Power is limited, for high power density, ultra high power density permanent magnet motor, can not reach the cooling effect that can be required.Additionally,
It is air-cooled with very big noise, be not suitable for the occasion for having strict demand for noise.
The content of the invention
For the disadvantages described above or Improvement requirement of prior art, the present invention provides in a kind of stator slot water-cooling system and has
The motor of the water-cooling system, which adopts the type of cooling of arrangement notch and bottom land two-layer water pipe in groove.This scheme has very high
Cooling effectiveness, directly can take away machine winding generation heat, in addition, the arrangement of notch water pipe reduce winding exchange copper
Consumption, and the cooling medium in pipe is close to rotor, can carry out certain cooling to rotor, solve high power density bimorph transducer
The too high problem of rotor cooling difficulty, temperature rise.
For achieving the above object, according to one aspect of the present invention, there is provided water-cooling system in a kind of stator slot, for electricity
In machine stator and stator slot, winding is cooled down, and the water-cooling system includes：
Interior Water-cooling circulating subsystem, which includes the water pipe for being arranged on the stator slot bottom and notch, and the water pipe is by close
Sealing joint is connected with rubber hose, and the rubber hose is connected with end ring by the seal nipple, is provided with the outside of the end ring
Import, inner side are provided with outlet, and cooling water can enter the water pipe by the import, take away winding in the stator and stator slot
Heat, and by it is described outlet discharge；
Outer Water-cooling circulating subsystem, which includes water- to-water heat exchanger, for cooling down to the water that the outlet is discharged, cooling water
It is again introduced into the interior Water-cooling circulating subsystem, you can realize that winding is cooled down in motor stator and stator slot.
Preferably, many water pipes are composed in series a branch units pipe, for eliminating series connection counter electromotive force.
Preferably, the left and right pipeline import and export of the branch units pipe are staggered, for improving heat exchange efficiency, and make institute
State conduit temperature to raise than more uniform.
Preferably, the interior Water-cooling circulating subsystem also includes water inlet manifold, for the cooling water is distributed to each
The branch units pipe.
Preferably, the interior Water-cooling circulating subsystem also includes deionizer, for purifying, purifying the cooling water.
Preferably, the water pipe is lost for reducing leakage field and reducing using not magnetic stainless steel pipe or copper pipe.
Preferably, the not magnetic stainless steel pipe or copper pipe End are connected using welding method, for reducing risk of leakage.
Preferably, the stator is one or two, is provided with water pipe described in multilayer.
Preferably, the end ring is close to motor end by fixing device, and pours heat-conducting glue, goes out to reduce motor
The temperature of line end.
According to another aspect of the present invention, there is provided a kind of motor with water-cooling system in described stator slot.
In general, by the contemplated above technical scheme of the present invention compared with prior art, imitate with following technology
Really：
(1) type of cooling of notch and bottom land two-layer water pipe is arranged in employing groove of the invention.This scheme has very high
Cooling effectiveness, directly can take away machine winding generation heat, in addition, the arrangement of notch water pipe reduce winding exchange copper
Consumption, and the cooling medium in pipe is close to rotor, can carry out certain cooling to rotor, solve high power density bimorph transducer
The too high problem of rotor cooling difficulty, temperature rise.
(2) end pipe fairlead adopts high-temperature resistant rubber flexible pipe, in that context it may be convenient to connect trough inner water pipe and end ring, solution
Distributed Winding of having determined end construction is complicated, is difficult to arrange the problem of cooling water pipe.
(3) water pipe is connected by special series-parallel system, and a unit pipe wall and water induction electricity has been reduced or eliminated
Kinetic potential, reduces the electromagnetic consumable in water pipe to greatest extent, improves the safety and reliability of system.
(4) water pipe imports and exports wrong row, is all the relation of adverse current, therefore has between a water pipe and three nearest water pipes
Maximum heat exchange efficiency, and Temperature Distribution also can be more uniform.
Description of the drawings
Fig. 1 is water cooling system structure schematic diagram in a kind of stator slot of the embodiment of the present invention；
Fig. 2 is water-cooling system plumbing diagram in a kind of stator slot of the embodiment of the present invention；
The unit pipe connection figure that Fig. 3 is related to for water-cooling system in a kind of stator slot of the embodiment of the present invention；
Fig. 4 is the company between the trough inner water pipe that water-cooling system is related in a kind of stator slot of the embodiment of the present invention and end ring
Connect；
Arrangements of the Fig. 5 for the adjacent cells pipeline of water-cooling system in a kind of stator slot of the embodiment of the present invention；
Fig. 6 is connected overall pattern with water pipe for the end ring that water-cooling system in a kind of stator slot of the embodiment of the present invention is related to.
In all accompanying drawings, identical reference is used for representing identical element or structure, wherein：1- filters, 2- are followed
Ring water pump, 3- water- to-water heat exchangers, 4- deionizers, 5- water inlet manifolds, 6- external stator end ring, 7- inner stator end ring, 8- water outlets are total
Pipe, 9- water tanks, 10- internal stator iron cores, 11- trough inner water pipes, 12- magnet steel, 13- rotor magnetic conduction steel, 14- external stators are unshakable in one's determination, 15- around
Group, 16- slot wedges, 17- polar caps, 18- seal nipples, 19- rubber hose, 20- upper stratas water pipe, 21- lower floors water pipe, the 22- ports of export
Ring, 23- import end ring, 24- unit pipe entrances, the outlet of 25- unit pipes, 26- imports, 27- outlets.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, and
It is not used in the restriction present invention.As long as additionally, technical characteristic involved in invention described below each embodiment
Do not constitute conflict each other can just be mutually combined.
Fig. 1 is water cooling system structure schematic diagram in a kind of stator slot of the embodiment of the present invention.As shown in figure 1, whole cool down
System is divided into inside and outside two Water-cooling circulatings, and outer circulation is open circulation, and under the pump-absorb action of water circulating pump 2, water is through filtering
After device 1, cooled down into the cooling water in 3 inner loop of water- to-water heat exchanger；
As shown in figure 1, interior circulation be closed cycle, water from water- to-water heat exchanger 3 out after, into deionizer 4, Ran Houjing
Water circulating pump 2 pressurizes, and a point two-way respectively enters interior external stator entrance point ring 6,7, and end ring 6,7 is by each branch units of moisture dispensing
Pipe, in unit pipes, cooling water takes away the heat in motor, is finally collected by outlet end ring, and inside and outside Jing, stator outlet house steward 8 enters
Enter the storage voltage stabilizing of water tank 9 installed in motor upper end, water- to-water heat exchanger 3 is introduced by water pipe finally, a circulation is completed.
In a preferred embodiment of the invention, by taking the Double-stator motor of 360 grooves as an example illustrating the cloth of cooling water pipe
Office and connected mode.Which is cold to carry out to motor by the way of one layer of water pipe 11 is respectively arranged inside and outside stator slot bottom and notch
But, water pipe 11 is lost with reducing leakage field and reduction using not magnetic stainless steel or copper.Notch arrangement water pipe 11 can reduce exchange
Copper loss, a small amount of eddy-current loss that its tube wall is produced also easily directly are taken away by water, and water pipe is near rotor, and rotor can be had
There is preferable cooling effect, this is extremely beneficial for the cooling of high power density Double-stator motor rotor.Trough inner water pipe
Position is as shown in Figure 2.
Interior external stator adopts 4 layers of water pipe 11, and common 360x4 roots water pipe, water pipe quantity are more, need effectively to close water pipe 11
The connection of reason, on the one hand will avoid circulation, produce larger induced electromotive force and electromagnetic consumable, on the other hand, reduce as far as possible
Fluid impedance losses, make uniform flow distribution, so as to the temperature rise in motor is as far as possible uniform.
To eliminate series connection counter electromotive force as far as possible, connect to form a unit pipe with 12 water pipes in scheme, such as Fig. 3 institutes
Show, one layer has 30 unit water pipes, and whole motor has 120 unit water pipes.Additionally, to reduce non-solder joint as far as possible,
Reduce risk of leakage, by the way of in groove, stainless steel rectangular pipe can be using connecting with welding by end stainless steel connecting tube, two ends by
Rubber hose 19 is drawn, and is connected using seal nipple 18 between rubber hose 19 and trough inner water pipe 11.
As Distributed Winding end construction is complicated, the connection of trough inner water pipe 11 and end ring 6,7 is needed by pliable rubber
Glue flexible pipe 19 realizes, as shown in figure 4, by this connection, import end ring can distribute and enter in unit pipe for its connection
Discharge, outlet end ring can then collect the discharge flowed out from unit pipe.Trough inner water pipe by rubber hose draw with
End ring connects, as shown in Figure 4.In order that Distribution of temperature rise is uniform, levels and left and right adjacent cells pipeline import and export wrong row, such as
Fig. 5, this connected mode also make a water pipe and the relation that adjacent three water pipes are adverse currents just, and heat exchange is more efficient, temperature rise
Also can be more uniform.
In a preferred embodiment of the invention, by taking external stator as an example, end ring 6,7 is connected such as Fig. 6 institutes with the totality of water pipe 11
Show, 23 radius of import end ring there are 60 interfaces to be attached with unit pipe more than outlet end ring 22 on each end ring.Cooling system
4 end ring of system at motor outlet wire end, be close to end by fixing device, and can pour certain heat-conducting glue by end ring,
To reduce the temperature of outlet one end.
Water-cooling system in the motor stator slot for being proposed, is respectively arranged upper and lower two-layer water pipe in a stator slot, cooling
Medium and stator winding and rotor can effectively reduce stator and rotor temperature rise, so as to substantially reduce winding apart from less
Insulation breakdown and rotor magnetic steel demagnetization risk, while also improving the efficiency of motor.
As it will be easily appreciated by one skilled in the art that the foregoing is only presently preferred embodiments of the present invention, not to
The present invention, all any modification, equivalent and improvement made within the spirit and principles in the present invention etc. are limited, all should be included
Within protection scope of the present invention.
Claims (10)
1. water-cooling system in a kind of stator slot, for cooling down to winding in motor stator and stator slot, its feature exists
In the water-cooling system includes：
Interior Water-cooling circulating subsystem, which includes the water pipe (11) for being arranged on the stator slot bottom and notch, and the water pipe (11) is led to
Cross seal nipple (18) to connect with rubber hose (19), the rubber hose (19) is by the seal nipple (18) and end ring
(6,7) connect, the end ring (6,7) on the outside of be provided with import (26), inner side is provided with outlet (27), and cooling water can be by the import
(26) into the water pipe (11), the heat of winding in the stator and stator slot is taken away, and is discharged by the outlet (27)；
Outer Water-cooling circulating subsystem, which includes water- to-water heat exchanger (3), for cooling down to the water that the outlet (27) is discharged, cold
But water is again introduced into the interior Water-cooling circulating subsystem, you can realize that winding is cooled down in motor stator and stator slot.
2. water-cooling system in a kind of stator slot according to claim 1, it is characterised in that many water pipes (11) series connection
One branch units pipe of composition, for eliminating series connection counter electromotive force.
3. water-cooling system in a kind of stator slot according to claim 1 and 2, it is characterised in that the branch units pipe
Left and right pipeline import and export are staggered, for improving heat exchange efficiency, and the water pipe (11) temperature is raised than more uniform.
4. water-cooling system in a kind of stator slot according to Claims 2 or 3, it is characterised in that interior Water-cooling circulating
System also includes water inlet manifold (5), for the cooling water is distributed to each branch units pipe.
5. water-cooling system in a kind of stator slot according to claim 1,2 or 4, it is characterised in that the interior Water-cooling circulating
Subsystem also includes deionizer (4), for purifying, purifying the cooling water.
6. water-cooling system in a kind of stator slot according to any one of claim 1-4, it is characterised in that the water pipe
(11) using not magnetic stainless steel pipe or copper pipe, for reducing leakage field and reducing loss.
7. water-cooling system in a kind of stator slot according to any one of claim 6, it is characterised in that the not magnetic conduction is not
Rust steel pipe or copper pipe End are connected using welding method, for reducing risk of leakage.
8. water-cooling system in a kind of stator slot according to any one of claim 1-7, it is characterised in that the stator is
One or two, is provided with water pipe described in multilayer (11).
9. water-cooling system in a kind of stator slot according to claim 1, it is characterised in that and the end ring (6,7) by solid
Determine device to be close to motor end, and pour heat-conducting glue, to the temperature for reducing motor outlet wire end.
10. in a kind of stator slot with described in any one of claim 1-9 water-cooling system motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611119454.6A CN106549517A (en) | 2016-12-08 | 2016-12-08 | Water-cooling system and the motor with the water-cooling system in a kind of stator slot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611119454.6A CN106549517A (en) | 2016-12-08 | 2016-12-08 | Water-cooling system and the motor with the water-cooling system in a kind of stator slot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106549517A true CN106549517A (en) | 2017-03-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611119454.6A Pending CN106549517A (en) | 2016-12-08 | 2016-12-08 | Water-cooling system and the motor with the water-cooling system in a kind of stator slot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106549517A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107591909A (en) * | 2017-10-07 | 2018-01-16 | 宁德时代电机科技有限公司 | The permanent-magnetic outer rotor motor that a kind of built-in radiating water route of stator slot is connected with main water route |
| CN107591910A (en) * | 2017-10-07 | 2018-01-16 | 宁德时代电机科技有限公司 | Heat dissipation pipe's high overload high performance permanent magnetic synchronous motor is set in a kind of stator slot |
| CN109412324A (en) * | 2018-09-12 | 2019-03-01 | 四川宏华电气有限责任公司 | A kind of fracturing pump variable-frequency control asynchronous motor |
| CN109494901A (en) * | 2018-12-18 | 2019-03-19 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | A kind of trough inner water cool electric machine stator |
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| JP2013015048A (en) * | 2011-07-01 | 2013-01-24 | Mitsubishi Heavy Ind Ltd | Gas turbine power generating facilities |
| CN203491849U (en) * | 2013-10-15 | 2014-03-19 | 安徽巨一自动化装备有限公司 | Equidistant annular type motor cooling water channel |
| CN103730986A (en) * | 2012-10-12 | 2014-04-16 | 西门子公司 | Device for cooling a component of an electric machine by means of multiple cooling coils |
| JP2015159718A (en) * | 2014-02-21 | 2015-09-03 | 斗山重工業株式会社 | Separation type coolant circulation structure of water cooling power generator and cooling method using the same |
| CN106208443A (en) * | 2016-08-30 | 2016-12-07 | 伊泽瑞尔(大连)科技有限公司 | A kind of high-energy-density magneto water-cooling system |
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2016
- 2016-12-08 CN CN201611119454.6A patent/CN106549517A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013015048A (en) * | 2011-07-01 | 2013-01-24 | Mitsubishi Heavy Ind Ltd | Gas turbine power generating facilities |
| CN103730986A (en) * | 2012-10-12 | 2014-04-16 | 西门子公司 | Device for cooling a component of an electric machine by means of multiple cooling coils |
| CN203491849U (en) * | 2013-10-15 | 2014-03-19 | 安徽巨一自动化装备有限公司 | Equidistant annular type motor cooling water channel |
| JP2015159718A (en) * | 2014-02-21 | 2015-09-03 | 斗山重工業株式会社 | Separation type coolant circulation structure of water cooling power generator and cooling method using the same |
| CN106208443A (en) * | 2016-08-30 | 2016-12-07 | 伊泽瑞尔(大连)科技有限公司 | A kind of high-energy-density magneto water-cooling system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107591909A (en) * | 2017-10-07 | 2018-01-16 | 宁德时代电机科技有限公司 | The permanent-magnetic outer rotor motor that a kind of built-in radiating water route of stator slot is connected with main water route |
| CN107591910A (en) * | 2017-10-07 | 2018-01-16 | 宁德时代电机科技有限公司 | Heat dissipation pipe's high overload high performance permanent magnetic synchronous motor is set in a kind of stator slot |
| CN109412324A (en) * | 2018-09-12 | 2019-03-01 | 四川宏华电气有限责任公司 | A kind of fracturing pump variable-frequency control asynchronous motor |
| CN109494901A (en) * | 2018-12-18 | 2019-03-19 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | A kind of trough inner water cool electric machine stator |
| CN109494901B (en) * | 2018-12-18 | 2020-07-31 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | In-groove water-cooled motor stator |
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Application publication date: 20170329 |
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