CN106411010A - Rotor cooling structure in high-speed motor - Google Patents
Rotor cooling structure in high-speed motor Download PDFInfo
- Publication number
- CN106411010A CN106411010A CN201611047228.1A CN201611047228A CN106411010A CN 106411010 A CN106411010 A CN 106411010A CN 201611047228 A CN201611047228 A CN 201611047228A CN 106411010 A CN106411010 A CN 106411010A
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- CN
- China
- Prior art keywords
- cooling
- cooling holes
- rotor
- holes
- speed electric
- 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
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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
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a rotor cooling structure in a high-speed motor, which comprises a rotor body, and is characterized in that a cooling main air path is arranged along an axis direction of the body, and an air inlet of the cooling main air path is located at the lower end face of the body; the upper end of the body is provided with a plurality of first cooling holes, the lower end of the body is provided with a plurality of second cooling holes, the first cooling holes and the second cooling holes are obliquely arranged on the body, and the first cooling holes and the second cooling holes are communicated with the cooling main air path; and the diameter of the first cooling holes is greater than the diameter of the second cooling holes. According to the invention, the cooling main air path provided for the cooling air to get in is arranged at the axis direction of the rotor, and the rotor is provided with the cooling holes with gradients or radians; the cooling air flows into the center of the rotor through the cooling main air path so as to cool the internal part of the rotor; and the cooling air is thrown out through a centrifugal force so as to cool the external part of the rotor, the external part of a stator and a motor shell.
Description
Technical field：
The present invention relates to rotor cooling structure in a kind of high-speed electric expreess locomotive.
Background technology：
Existing high-speed electric expreess locomotive is high due to small volume, power density, and radiating has difficulties.High-speed electric expreess locomotive windmill loss and
Eddy-current loss accounts for larger proportion, and windmill loss and eddy-current loss are primarily generated on rotor, and to rotor performance, especially permanent magnetism turns
The performance of son produces large effect.Adopting heat loss through radiation or outside forced ventilation cooling the rotor of existing high-speed electric expreess locomotive more.Spoke
Penetrate radiating effect poor, lead to rotor operation temperature difficult to accept more；Forced ventilation radiating increases external equipment, increases number of devices
Amount, reduction operational reliability.
Therefore, it is necessory to improve prior art to solve the deficiency of prior art.
Content of the invention：
The present invention is to provide rotor cooling knot in a kind of high-speed electric expreess locomotive to solve the problems, such as above-mentioned prior art
Structure.
The technical solution adopted in the present invention has：Rotor cooling structure in a kind of high-speed electric expreess locomotive, including rotor body, along institute
The axis direction stating body is provided with cooling main airway, and the air inlet of this cooling main airway is located on the lower surface of body；
Be provided with several the first Cooling Holes in body upper end, lower end is provided with several the second Cooling Holes, the first Cooling Holes and
Second Cooling Holes all tilt on body, and first and second Cooling Holes are all connected with cooling main airway；
The aperture of described first Cooling Holes is more than the aperture of the second Cooling Holes.
Further, described first Cooling Holes are parallel to the second Cooling Holes.
Further, described first Cooling Holes and the second Cooling Holes are distributed each along the circumferencial direction of body.
Further, the cross section of described first and second Cooling Holes is straight line or circular arc.
The present invention has the advantages that：
1) the cooling main airway entering for cooling air is had on the axis direction of rotor in the present invention, and open on rotor
The Cooling Holes of gradient or radian；Cold air flows into rotor center along cooling main airway, cools down internal rotor；Cooling air passes through
Centrifugal force is thrown out of, cooling rotor exterior, stator exterior and casing；
2) present invention utilizes the gyration of high speed rotor, makes the Cooling Holes on rotor play the effect of centrifugal fan, pushes away
Dynamic air, makes cooling air smoothly enter internal rotor, i.e. the place of rotor heating most serious, it is to avoid rotor is overheated；
3) because the temperature of axial cooling motor gradually rises vertically, away from cold air the first Cooling Holes aperture relatively
Big near the aperture of the second Cooling Holes of cold air, strengthen cooling effect so that cooling down evenly.
Brief description：
Fig. 1 is present configuration figure.
Fig. 2 is application structure figure in high-speed electric expreess locomotive for the present invention.
Fig. 3 is that in the present invention, first and second Cooling Holes are the structure chart of arc-shaped.
Fig. 4 is the structure chart of first and second Cooling Holes multilamellar setting in the present invention.
Specific embodiment：
The present invention is further illustrated below in conjunction with the accompanying drawings.
As shown in figure 1, rotor cooling structure in a kind of high-speed electric expreess locomotive of the present invention, including rotor body 3, along this body 3
Axis direction is provided with cooling main airway 30, and the air inlet of this cooling main airway 30 is located on the lower surface of body 3.In body
3 upper ends are provided with several the first Cooling Holes 31, and lower end is provided with several the second Cooling Holes 32, the first Cooling Holes 31 and the second cooling
Hole 32 all tilts on body 3, and first and second Cooling Holes are all connected with cooling main airway 30.
As Fig. 2, when using, cooling wind is entered in body 3 and is cooled down body interior by cooling down main airway 30.In addition, it is cold
But wind passes through the first Cooling Holes 31 and the second Cooling Holes 32 and respectively enters the first cooling chamber 11 within high-speed electric expreess locomotive casing 1 and the
In two cooling chambers 12, and cool down the outside of body 3, the outside of stator 2 and casing 1 internal chamber wall.
Because cooling wind enters in cooling main airway 30 from the lower surface of body 3, this cooling wind is first by the second Cooling Holes 32
Enter in the second cooling chamber 12, then entered in the first cooling chamber 11 by the first Cooling Holes 31.Therefore cool down motor upwards along body 3
Temperature gradually rise, for strengthen away from cooling air position cooling effect (i.e. at the first cooling chamber 11), uniformly cold
But effect, the aperture of the first Cooling Holes 31 is more than the aperture of the second Cooling Holes 32.
When cooling gas are via cooling down main airway 30 and being discharged by the Cooling Holes being obliquely installed, due to the first Cooling Holes 31 He
Second Cooling Holes 32 are obliquely installed, and therefore cooling gas, during being thrown away by centrifugal force, clash into the internal face of above-mentioned Cooling Holes,
Thus playing certain flow-disturbing effect, increase the blowout scope of cooling gas.
The first Cooling Holes 31 in the present invention are parallel to the second Cooling Holes 32, and the first Cooling Holes 31 and the second Cooling Holes 32
Circumferencial direction distribution each along body 3.
In conjunction with Fig. 3, the first Cooling Holes 3 in the present invention and the cross section of the second Cooling Holes 32 are straight line or circular arc.
As Fig. 4, for increasing cooling effect, if the first Cooling Holes 3 and the second Cooling Holes 32 can arrange dried layer.
If body diameter is less, the present invention can place a work(in the tuyere position of the first Cooling Holes and the second Cooling Holes
The less centrifugal fan of rate, had both reduced the loss producing when centrifugal fan runs, and the cooling that again can meet rotor requires.
The above is only the preferred embodiment of the present invention it is noted that ordinary skill people for the art
For member, some improvement can also be made under the premise without departing from the principles of the invention, these improvement also should be regarded as the present invention's
Protection domain.
Claims (4)
1. rotor cooling structure in a kind of high-speed electric expreess locomotive, including rotor body (3) it is characterised in that：Axle along described body (3)
Heart direction is provided with cooling main airway (30), and the air inlet of this cooling main airway (30) is located on the lower surface of body (3)；
It is provided with several the first Cooling Holes (31) in body (3) upper end, lower end is provided with several the second Cooling Holes (32), and first is cold
But hole (31) and the second Cooling Holes (32) all tilt on body (3), and first and second Cooling Holes all with cooling main airway (30)
Connect；
The aperture of described first Cooling Holes (31) is more than the aperture of the second Cooling Holes (32).
2. in high-speed electric expreess locomotive as claimed in claim 1 rotor cooling structure it is characterised in that：Described first Cooling Holes (31) are put down
Row is in the second Cooling Holes (32).
3. in high-speed electric expreess locomotive as claimed in claim 1 rotor cooling structure it is characterised in that：Described first Cooling Holes (31) with
Second Cooling Holes (32) are distributed each along the circumferencial direction of body (3).
4. in high-speed electric expreess locomotive as claimed in claim 1 rotor cooling structure it is characterised in that：Described first and second Cooling Holes
Cross section is straight line or circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611047228.1A CN106411010A (en) | 2016-11-21 | 2016-11-21 | Rotor cooling structure in high-speed motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611047228.1A CN106411010A (en) | 2016-11-21 | 2016-11-21 | Rotor cooling structure in high-speed motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106411010A true CN106411010A (en) | 2017-02-15 |
Family
ID=58082442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611047228.1A Pending CN106411010A (en) | 2016-11-21 | 2016-11-21 | Rotor cooling structure in high-speed motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106411010A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113937953A (en) * | 2021-10-22 | 2022-01-14 | 中车株洲电机有限公司 | Active air supply cooling permanent magnet motor and electric locomotive |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05103444A (en) * | 1991-10-07 | 1993-04-23 | Honda Motor Co Ltd | Cooling structure for motor |
| US20010033112A1 (en) * | 2000-04-24 | 2001-10-25 | Capstone Turbine Corporation | Permanent magnet rotor cooling system and method |
| CN201994747U (en) * | 2011-02-21 | 2011-09-28 | 珠海格力电器股份有限公司 | Direct current synchronous motor and cooling system thereof |
| JP2011223805A (en) * | 2010-04-13 | 2011-11-04 | Sinfonia Technology Co Ltd | Rotary device |
| CN102714438A (en) * | 2010-03-24 | 2012-10-03 | 爱信艾达株式会社 | Rotor for dynamo |
| CN205319816U (en) * | 2016-01-20 | 2016-06-15 | 崔小兵 | Permanent magnetism disk type motor cooling system |
| CN206211703U (en) * | 2016-11-21 | 2017-05-31 | 南京磁谷科技有限公司 | Rotor cooling structure in a kind of high-speed electric expreess locomotive |
-
2016
- 2016-11-21 CN CN201611047228.1A patent/CN106411010A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05103444A (en) * | 1991-10-07 | 1993-04-23 | Honda Motor Co Ltd | Cooling structure for motor |
| US20010033112A1 (en) * | 2000-04-24 | 2001-10-25 | Capstone Turbine Corporation | Permanent magnet rotor cooling system and method |
| CN102714438A (en) * | 2010-03-24 | 2012-10-03 | 爱信艾达株式会社 | Rotor for dynamo |
| JP2011223805A (en) * | 2010-04-13 | 2011-11-04 | Sinfonia Technology Co Ltd | Rotary device |
| CN201994747U (en) * | 2011-02-21 | 2011-09-28 | 珠海格力电器股份有限公司 | Direct current synchronous motor and cooling system thereof |
| CN205319816U (en) * | 2016-01-20 | 2016-06-15 | 崔小兵 | Permanent magnetism disk type motor cooling system |
| CN206211703U (en) * | 2016-11-21 | 2017-05-31 | 南京磁谷科技有限公司 | Rotor cooling structure in a kind of high-speed electric expreess locomotive |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113937953A (en) * | 2021-10-22 | 2022-01-14 | 中车株洲电机有限公司 | Active air supply cooling permanent magnet motor and electric locomotive |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170215 |
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| WD01 | Invention patent application deemed withdrawn after publication |