CN107359763A - A kind of high-power nine phases asynchronous motor - Google Patents
A kind of high-power nine phases asynchronous motor Download PDFInfo
- Publication number
- CN107359763A CN107359763A CN201710646422.XA CN201710646422A CN107359763A CN 107359763 A CN107359763 A CN 107359763A CN 201710646422 A CN201710646422 A CN 201710646422A CN 107359763 A CN107359763 A CN 107359763A
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- China
- Prior art keywords
- area
- cooler
- wind
- ventilation blower
- guide structure
- 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
- 238000001816 cooling Methods 0.000 claims abstract description 41
- 238000009423 ventilation Methods 0.000 claims abstract description 31
- 238000004804 winding Methods 0.000 claims abstract description 9
- 239000004744 fabric Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/12—Asynchronous induction motors for multi-phase current
-
- 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
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
- H02K1/187—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to inner stators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/04—Balancing means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a 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
- H02K9/14—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle
- H02K9/18—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle wherein the external part of the closed circuit comprises a heat exchanger structurally associated with the machine casing
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The present invention discloses a kind of high-power nine phases asynchronous motor, including motor body and absolutely empty cooling system, motor body include support, rotor and stator, and absolutely empty cooling system includes cooler and cooling tube group in rectangular layout；Interior ventilation blower is provided with above cooling tube group, the air guide structure of two isolated areas will be divided into by being provided with below interior ventilation blower inside cooler, air guide structure is enclosed by left plate, right plate and top plate and formed, the interior zone of air guide structure is first area, the perimeter of air guide structure is second area, the left air outlet and right air outlet of interior ventilation blower connect with left wind-guiding region, right wind-guiding regional connectivity, the air inlet of interior ventilation blower with first area respectively.The present invention will be divided into first area and second area by air guide structure inside cooler, ventilation blower is that boundary is divided into left wind-guiding region and right wind-guiding region within second area, make the cooling of rotor core and stator core uniform, extend the service life of stator winding, improve motor efficiency.
Description
Technical field
The present invention relates to asynchronous motor technical field, more specifically a kind of high-power nine phases asynchronous motor.
Background technology
As shown in figure 1, high power motor is used for that to cool down wind path in motor to be mostly unilateral wind path in the prior art, generally
It is the axle stretch end that internal fan 33 is fixed on to motor, internal fan 33 forces motor internal air from the moved upward inside of support 3
Being cooled down to cooler 12, the inner air after the cooling of cooler 12 enters inside support 3 from motor non-shaft stretching end, according to
It is secondary that rotor 4 and stator 5 are cooled down by rotor shaft hatch, rotor air channel, stator air channel.Cooled air is from from non-shaft extension
End enters inside support 3, is then come out from the axle stretch end of support 3, and such type of cooling easily causes rotor core 10 and determined
The sub- inhomogeneous cooling of iron core 6 is even, and rotor core 10 is low with the portion temperature on stator core 6 close to non-shaft stretching end, close to axle stretch end
Portion temperature it is high, shorten the life-span of motor stator winding 7；External fan 32 is arranged on non-shaft stretching end, because external fan 32 is solid
It is scheduled on motor shaft 11, so motor shaft 11, which drives external fan 32 to rotate, can produce a part of mechanical loss, causes motor to imitate
Rate is low；The both sides of rotor core 10 are installed with the balance ring 34 being arranged symmetrically, and hinder cooling air and enter rotor core 10, influence
The cooling effect of rotor core 10 and stator core 6.
The content of the invention
It is an object of the invention to provide a kind of high-power nine phases asynchronous motor, make the cold of rotor core and stator core
But uniformly, extend the service life of stator winding, improve motor efficiency.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of high-power nine phases asynchronous motor, including motor body and the absolutely empty cooling system above motor body,
Motor body includes support, rotor and stator, wherein, stator includes stator core and stator winding, and stator core both ends are symmetrical
The stator core trim ring for fixed stator winding is installed with, the rotor core of rotor is fixed on motor shaft, sets motor
Axle stretch end side be left, non-shaft stretching end side is right, absolutely empty cooling system includes being arranged on the cooler above motor body
And axially inside the horizontal multiple rows of multiple row cooling tube group worn, cooling tube group are in rectangular layout in cooler；Cooling tube group
Top be provided with interior ventilation blower, the air guide structure that will be divided into two isolated areas inside cooler is provided with below interior ventilation blower, is led
Wind structure is enclosed by left plate, right plate and top plate and formed, and left plate and the cooled pipe group of right plate run through, wherein, wind-guiding
The interior zone of structure is first area, and the perimeter of air guide structure is second area；Within ventilation blower be boundary, second area
It is divided into left wind-guiding region and right wind-guiding region, the left air outlet and right air outlet of interior ventilation blower are led with left wind-guiding region, the right side respectively
Wind regional connectivity, the air inlet of interior ventilation blower connect with first area；Cooler is provided with the contact surface of support to be used to connect
Left wind-guiding region is with the left air admission hole of support left part, the right air admission hole for connecting right wind-guiding region and support right part and for even
Venthole in the middle part of logical first area and support；The outside that cooler is located at non-shaft stretching end side is provided with and cooler internal cooling
The separate ventilation machine that pipe group is connected.
The stator core trim ring is connected with support by fixing structure.
The both ends of the rotor core are installed with a balance weight respectively, and two balance weights are arranged symmetrically.
An annular groove for being used for stable equilibrium block is respectively equipped with the both ends of the surface of the rotor core.
The interior ventilation blower includes blade wheel structure and motor, and blade wheel structure and motor are located inside cooler respectively, cooling
Outside device.
The parallel longitudinal arrangement of left plate and right plate.
The present invention will be divided into first area and second area by air guide structure inside cooler, be divulged information within second area
Machine is that boundary is divided into left wind-guiding region and right wind-guiding region, after cooling air passes through left wind-guiding region and right wind-guiding region, from support
Both ends enter base inner so that the cooling of rotor core and stator core is than more uniform；Eliminate and be arranged on base inner
And the external fan on motor shaft is fixed on, a separate ventilation machine independently of motor shaft is additionally arranged outside cooler, is reduced
Motor mechanical loss caused by because of the rotation of drive external fan, improves motor efficiency；Stator core in motor trim ring
External diameter becomes big, so as to contact with support and connected by fixing structure, fixes stator core more firm, reduces electronic
The probability that machine vibrates in the process of running；The balance ring for being arranged on rotor core both sides is eliminated, balance weight is fixed on
In the both ends of the surface of rotor core, on the premise of rotor dynamic balancing demand is met, avoid balance ring and hinder cooling air to enter
Rotor core, improve the cooling effect of rotor core.
Brief description of the drawings
Fig. 1 is the structural representation of high-power nine phases asynchronous motor in the prior art；
Fig. 2 is the structural representation of the high-power nine phases asynchronous motor of the present invention；
Fig. 3 be in Fig. 2 along A-A to sectional view；
Fig. 4 is the enlarged drawing at B in Fig. 2.
Embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book understands other advantages and effect of the present invention easily.It should be clear that structure depicted in this specification accompanying drawing,
Ratio, size etc., only to coordinate the content disclosed in specification, so that those skilled in the art understands and reads, and
It is not used to limit the enforceable qualifications of the present invention, therefore does not have technical essential meaning, the modification of any structure, ratio is closed
The change of system or the adjustment of size, in the case where not influenceing the effect of present invention can be generated and the purpose that can reach, all should still it fall
In the range of disclosed technology contents are obtained and can covered.Meanwhile in this specification it is cited as " on ", " under ",
The term of "left", "right", " centre " and " one " etc., understanding for narration is merely convenient to, and is not used to limit the present invention and can implement
Scope, its relativeness is altered or modified, in the case where changing technology contents without essence, when being also considered as the enforceable model of the present invention
Farmland.
As shown in Figures 2 to 4, a kind of high-power nine phases asynchronous motor, including motor body 1 and on motor body 1
The absolutely empty cooling system 2 of side.Motor body 1 includes support 3, rotor 4 and stator 5, stator 5 include stator core 6 and stator around
Group 7, the both ends of stator core 6 are symmetrically installed with the stator core trim ring 8 for fixed stator winding 7, stator core trim ring 8 and machine
Seat 3 is connected by fixing structure 9；The rotor core 10 of rotor 4 is fixed on motor shaft 11, sets the axle stretch end side of motor
It is right for left, non-shaft stretching end side.Absolutely empty cooling system 2 includes being arranged on the cooler 12 of the top of motor body 1 and cold
But the multiple rows of multiple row cooling tube group 13 that axially inside level is worn of device 12, cooling tube group 13 is in rectangular layout.Cooling tube group 13
Top be provided with interior ventilation blower 14, the interior lower section of ventilation blower 14 is provided with the wind-guiding knot that will be divided into two isolated areas inside cooler 12
Structure 15, air guide structure 15 are enclosed and formed by left plate 16, right plate 17 and top plate 18, and left plate 16 and right plate 17 are parallel longitudinal
Arrangement and cooled pipe group 13 runs through, wherein, the interior zone of air guide structure 15 be first area 19, air guide structure 15 outside
Portion region is second area.Within ventilation blower 14 be boundary, second area is divided into left wind-guiding region 20 and right wind-guiding region 21, interior logical
The left air outlet 22 and right air outlet 23 of blower fan 14 connect with left wind-guiding region 20, right wind-guiding region 21 respectively, interior ventilation blower 14
Air inlet 24 connected with first area 19.Cooler 12 is provided with the contact surface of support 3 to be used to connect left wind-guiding region 20
Left air admission hole 25 with support 3, the right air admission hole 26 for connecting right wind-guiding region 21 and the right part of support 3 and for connecting first
Region 19 and the venthole 27 at the middle part of support 3.Cooler 12 be located at non-shaft stretching end side outside be provided with inside cooler 12
The separate ventilation machine 28 that cooling tube group 13 is connected, the rotating speed of separate ventilation machine 28 are less than the rotating speed of external fan 32 in Fig. 1, reduce electricity
Motivation overall noise.
The both ends of rotor core 10 are installed with a balance weight 29 respectively, and two balance weights 29 are arranged symmetrically and fixed respectively
In annular groove in the both ends of the surface of rotor core 10.Balance weight 29 meets the demand of rotor dynamic balancing.
Interior ventilation blower 14 includes blade wheel structure 30 and motor 31, and blade wheel structure 30 and motor 31 are located in cooler 12 respectively
Outside portion, cooler 12.Motor 31 is fixed on to the outside of cooler 12, avoids heat caused by motor 31 from increasing absolutely empty cooling
The thermic load of system 2.
Filled arrows in figure represent the air-flow direction of outer ventilation circuit, hollow arrow represent in wind path air flow side
To,
Specific work process is as follows：
Separate ventilation machine 28 in outer ventilation circuit makes outside air by cooling tube group 13, and the air themperature in cooling tube group 13 is less than cold
But the air themperature inside device 12, therefore during outside air passes through cooling tube group 13, make the sky inside cooler 12
Temperature degree reduces；Air after cooling in first area 19 enters inside ventilation blower 14 through air inlet 24, then goes out from a left side
Air port 22, right air outlet 23 respectively enter left wind-guiding region 20, right wind-guiding region 21；Because outside air passes through cooling tube group 13
Speed so that the temperature elevation amplitude of outside air is smaller, the inner air of cooler 12 through left wind-guiding region 20,
During right wind-guiding region 21, it can be cooled again；The cooling air warp come out from left wind-guiding region 20, right wind-guiding region 21
Left air admission hole 25, right air admission hole 26 enter the both ends of support 3 simultaneously, and then rotor core 10 and stator core 6 are cooled down,
And the cooling of rotor core 10 and stator core 6 is caused than more uniform, to extend the service life of stator winding 7；To rotor iron
Air after core 10 and stator core 6 are cooled down enters first area 19 through venthole 27, is then carried out according to above-mentioned steps
Iterative cycles.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (6)
1. a kind of high-power nine phases asynchronous motor, including motor body and the absolutely empty cooling system above motor body
System, motor body include support, rotor and stator, wherein, stator includes stator core and stator winding, stator core both ends pair
Claim to be installed with the stator core trim ring for fixed stator winding, the rotor core of rotor is fixed on motor shaft, and setting is electronic
The axle stretch end side of machine is left, non-shaft stretching end side is right, it is characterised in that：Absolutely empty cooling system includes being arranged on motor body
The cooler of top and in the cooler axially inside horizontal multiple rows of multiple row cooling tube group worn, the rectangular cloth of cooling tube group
Put；The top of cooling tube group is provided with interior ventilation blower, and two isolated areas will be divided into by being provided with below interior ventilation blower inside cooler
Air guide structure, air guide structure are enclosed by left plate, right plate and top plate and formed, and left plate and the cooled pipe group of right plate are passed through
Wear, wherein, the interior zone of air guide structure is first area, and the perimeter of air guide structure is second area；Within ventilation blower
For boundary, second area is divided into left wind-guiding region and right wind-guiding region, the left air outlet and right air outlet of interior ventilation blower respectively with a left side
Wind-guiding region, right wind-guiding regional connectivity, the air inlet of interior ventilation blower connect with first area；On the contact surface of cooler and support
Enter provided with the left air admission hole for connecting left wind-guiding region and support left part, for connecting the right side in right wind-guiding region and support right part
Stomata and for connecting the venthole in the middle part of first area and support；Cooler be located at non-shaft stretching end side outside be provided with it is cold
But the separate ventilation machine that device internal cooling pipe group is connected.
2. high-power nine phases asynchronous motor according to claim 1, it is characterised in that：The stator core trim ring and machine
Seat is connected by fixing structure.
3. high-power nine phases asynchronous motor according to claim 2, it is characterised in that：The both ends of the rotor core point
A balance weight is not installed with, and two balance weights are arranged symmetrically.
4. high-power nine phases asynchronous motor according to claim 3, it is characterised in that：The both ends of the surface of the rotor core
On be respectively equipped with one be used for stable equilibrium block annular groove.
5. high-power nine phases asynchronous motor according to claim 2, it is characterised in that：The interior ventilation blower includes impeller
Structure and motor, blade wheel structure and motor are respectively inside cooler, outside cooler.
6. high-power nine phases asynchronous motor according to any one of claim 1 to 5, it is characterised in that：The left side
Plate and the parallel longitudinal arrangement of right plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710646422.XA CN107359763A (en) | 2017-08-01 | 2017-08-01 | A kind of high-power nine phases asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710646422.XA CN107359763A (en) | 2017-08-01 | 2017-08-01 | A kind of high-power nine phases asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107359763A true CN107359763A (en) | 2017-11-17 |
Family
ID=60286244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710646422.XA Pending CN107359763A (en) | 2017-08-01 | 2017-08-01 | A kind of high-power nine phases asynchronous motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN107359763A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU199115U1 (en) * | 2020-04-03 | 2020-08-17 | федеральное государственное бюджетное образовательное учреждение высшего образования "Уфимский государственный авиационный технический университет" | FAIL-SAFE FIVE-PHASE ASYNCHRONOUS MOTOR WITH COMBINATION WINDING |
| CN116436212A (en) * | 2023-06-09 | 2023-07-14 | 山西电机制造有限公司 | Motor with axial and radial mixed ventilation iron core |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102185420A (en) * | 2011-05-13 | 2011-09-14 | 东方电气（乐山）新能源设备有限公司 | Cooling system of 2MW wind driven generator |
| CN103475147A (en) * | 2013-09-09 | 2013-12-25 | 中达电机股份有限公司 | IC611 cooling mode box-type machine base low-voltage high-power electric motor |
| CN203608029U (en) * | 2013-11-29 | 2014-05-21 | 南阳防爆集团股份有限公司 | Air-cooled structure of box-type variable-frequency motor |
| CN105356648A (en) * | 2015-12-03 | 2016-02-24 | 卧龙电气南阳防爆集团股份有限公司 | High-power, low-speed and positive-pressure type explosion-proof induction motor |
| CN106787394A (en) * | 2016-12-16 | 2017-05-31 | 卧龙电气集团股份有限公司 | The absolutely empty box variable-frequency motor of cooling type |
| CN207082994U (en) * | 2017-08-01 | 2018-03-09 | 卧龙电气集团股份有限公司 | A kind of high-power nine phases asynchronous motor |
-
2017
- 2017-08-01 CN CN201710646422.XA patent/CN107359763A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185420A (en) * | 2011-05-13 | 2011-09-14 | 东方电气（乐山）新能源设备有限公司 | Cooling system of 2MW wind driven generator |
| CN103475147A (en) * | 2013-09-09 | 2013-12-25 | 中达电机股份有限公司 | IC611 cooling mode box-type machine base low-voltage high-power electric motor |
| CN203608029U (en) * | 2013-11-29 | 2014-05-21 | 南阳防爆集团股份有限公司 | Air-cooled structure of box-type variable-frequency motor |
| CN105356648A (en) * | 2015-12-03 | 2016-02-24 | 卧龙电气南阳防爆集团股份有限公司 | High-power, low-speed and positive-pressure type explosion-proof induction motor |
| CN106787394A (en) * | 2016-12-16 | 2017-05-31 | 卧龙电气集团股份有限公司 | The absolutely empty box variable-frequency motor of cooling type |
| CN207082994U (en) * | 2017-08-01 | 2018-03-09 | 卧龙电气集团股份有限公司 | A kind of high-power nine phases asynchronous motor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU199115U1 (en) * | 2020-04-03 | 2020-08-17 | федеральное государственное бюджетное образовательное учреждение высшего образования "Уфимский государственный авиационный технический университет" | FAIL-SAFE FIVE-PHASE ASYNCHRONOUS MOTOR WITH COMBINATION WINDING |
| CN116436212A (en) * | 2023-06-09 | 2023-07-14 | 山西电机制造有限公司 | Motor with axial and radial mixed ventilation iron core |
| CN116436212B (en) * | 2023-06-09 | 2023-08-29 | 山西电机制造有限公司 | Motor with axial and radial mixed ventilation iron core |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171117 |
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| RJ01 | Rejection of invention patent application after publication |