CN105281462A - Rotary motor and rotor - Google Patents
Rotary motor and rotor Download PDFInfo
- Publication number
- CN105281462A CN105281462A CN201510413909.4A CN201510413909A CN105281462A CN 105281462 A CN105281462 A CN 105281462A CN 201510413909 A CN201510413909 A CN 201510413909A CN 105281462 A CN105281462 A CN 105281462A
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- duplexer
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- rotor core
- rotor
- pipeline
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Abstract
The present invention provides a rotary motor and a rotor, capable of improving cooling performance of a rotor. The rotor of the rotary motor has a rotor shaft (11) extending in an axial direction and a rotor core (12) having a plurality of laminated bodies (32a, 32b). A plurality of circular laminating plates (31) arranged at the outer side of the rotor shaft (11) and having concentric center openings are laminated concentrically along the axial direction to form the plurality of laminated bodies (32a, 32b), and a gap is provided between adjacent parts of the laminated bodies (32a, 32b) along the axial direction, so that a pipe (33) through which cooling-used gas can pass is formed. The rotor core (12) has an axial flow path (13a) extending along the axial direction, and in at least one of the laminated bodies (32a, 32b) which clamp the pipe (33) and are opposite to each other, the area of the axial flow path near the pipe (33) monotonically increases along with the decrease of the distance to the pipe (33) along the axial direction.
Description
Technical field
The present invention relates to and be included in inside and be formed with the rotor of the iron core of cooling flowing path and there is the electric rotating machine of this rotor.
Background technology
The rotor of the electric rotating machines such as such as synchronous motor has the rotor coil received in the armature spindle pivoted, the multiple slits rotor core and being formed as of the steel plate of the ferromagnetic stacked drum obtained vertically extended vertically in the outer circumferential of rotor core usually.
Rotor coil is kept with the rotor slot wedge blocking peristome by the peristome extended vertically of radial outside of the slit being inserted into rotor core.In addition, to utilize the retaining ring of ring-type that the part axially protruding outside towards rotor core is resisted the mode of centrifugal force to keep rotor coil.
Prior art document
Patent documentation
Patent documentation 1: Japanese Patent Laid-Open 5-161288 publication
Summary of the invention
Invent technical problem to be solved
As mentioned above, although rotor coil and most components Mechanical Contact or combination, need to maintain electric insulation.Therefore, the component for rotor coil and periphery thereof uses a lot of insulating material.
Insulating material, according to respective material etc., has the restriction in heat resistance in serviceability temperature.On the other hand, the single-machine capacity of electric rotating machine in recent years increases, and the current density in rotor coil has the trend of rising.Therefore, take rotor coil as the cooling outbalance of each several part of rotor of representative.In addition, for stator, the cooling of each several part is important too.
In the cooling of rotor, such as, shown in patent documentation 1, have and cylindrical space is set between armature spindle and rotor core and in the example of the gap axially arranged between rotor core and pipeline.The rotor cooling gases such as air flow into from this cylindrical space and flow vertically, and conversion direction moves towards radial out-flow in pipeline.In this case, reduce the pressure loss caused because of the flowing of cooling gas, guarantee cooling performance outbalance.
Therefore, the object of the invention is to the cooling performance improving rotor.
The technical scheme of technical solution problem
In order to achieve the above object, the present invention is a kind of electric rotating machine, and this electric rotating machine comprises rotor and is arranged on the stator of radial outside of described rotor, it is characterized in that, described rotor possesses: armature spindle, and this armature spindle can be rotated by pivot suspension, and extends vertically centered by rotating shaft, and rotor core, this rotor core has multiple duplexer, the plurality of duplexer will be arranged on the outside of described armature spindle, there is the central opening that formed with one heart and rounded multiple stacked plate carries out stacked with one heart along described axis and obtains in central authorities, the plurality of duplexer is by having mutual interval along the part that described axis is adjacent each other, form the pipeline for making cooling gas pass through towards radial outside, described rotor core has along described axially extended axial flow path, clipping at least one duplexer in described pipeline described duplexer respect to one another, the area of the described axial flow path of described Near Pipelines increases along with along described axis is dull near described pipeline.
In addition, the present invention is a kind of rotor of electric rotating machine, it is characterized in that, possesses: armature spindle, and this armature spindle can be rotated by pivot suspension, and extends vertically centered by rotating shaft, and rotor core, this rotor core has multiple duplexer, the plurality of duplexer will be arranged on the outside of described armature spindle, there is the central opening that formed with one heart and rounded multiple stacked plate carries out stacked with one heart along described axis and obtains in central authorities, the plurality of duplexer is by having mutual interval along the part that described axis is adjacent each other, form the pipeline for making cooling gas pass through towards radial outside, described rotor core has along described axially extended axial flow path, clipping at least duplexer in described pipeline described duplexer respect to one another, the area of the described axial flow path of described Near Pipelines increases along with along described axis is dull near described pipeline.
Invention effect
According to the present invention, the cooling performance of rotor can be improved.
Accompanying drawing explanation
Fig. 1 is 1/4th cutaway views of the electric rotating machine of execution mode.
Fig. 2 is that the II-II alignment of Fig. 1 looks first half longitudinal sectional view.
Fig. 3 is that the III-III alignment of Fig. 1 looks longitudinal sectional view.
Fig. 4 is the longitudinal sectional view of the details in the IV portion representing Fig. 3.
Fig. 5 is the stereogram of the combination schematically showing duplexer.
Embodiment
Below, electric rotating machine and the rotor of embodiments of the present invention are described with reference to accompanying drawing.Herein, common label is added to mutual same or similar part, and omits repeat specification.
Fig. 1 is 1/4th cutaway views of the electric rotating machine of execution mode.Fig. 2 is that the II-II alignment of Fig. 1 looks first half longitudinal sectional view.Fig. 3 is that the III-III alignment of Fig. 1 looks longitudinal sectional view.Electric rotating machine 100 has rotor 10 and stator 20.
Rotor 10 to have outside the armature spindle 11 rotated around the shaft and the radial direction being configured in armature spindle 11 and the cylindrical rotor iron core 12 extended vertically.Rotor core 12 has the internal diameter larger than the profile of armature spindle 11, is arranged to armature spindle 11 concentric, is combined with armature spindle 11 by multiple rib 13.
The multiple ribs 13 be connected between the inner surface of the outer surface of armature spindle 11 and rotor core 12 are extended at spaced interval in the circumferential vertically.Consequently, the outer surface of armature spindle 11, the inner surface of rotor core 12 and multiple rib 13 is utilized to form multiple axial flow path 13a.
Surface outside the radial direction of rotor core 12 is formed with spaced interval configuration in the circumferential and the multiple slit 12a extended vertically.Each slit 12a is provided with rotor coil 14.At the axial two ends of rotor coil 14, i.e. the axially outside of rotor core 12, centrifugal force during in order to prevent rotor coil 14 because rotating and towards radial outside distortion, utilize retaining ring 17 (Fig. 2) to keep rotor coil 14.
Rotor core 12 has and will form porose magnetic steel plate and the stacked vertically and duplexer 32 (Fig. 2, Fig. 3) obtained of stacked plate 31 in central area.And the position at the concentric circumferentially circumferentially spaced interval of rotor core 12, multiple clamping bar (clampbar) 15 (Fig. 1, Fig. 2) is through rotor core 12 vertically.
The fixture 15a (Fig. 2, Fig. 3) of tabular is respectively arranged with outside two of the axis of rotor core 12.The two ends through fixture 15a respectively of clamping bar 15, and nut 15b is installed, utilize nut 15b to tighten, thus fixture 15a move towards approximating direction via clamping bar 15.Consequently, carry out fastening from axial both sides to rotor core 12 by fixture 15a.
In addition, rotor core 12, than clamping bar 15 more by radial outside, and the position at the concentric circumferentially circumferentially spaced interval of rotor core 12, multiple amortisseur bar (damperbar) 16 is through rotor core 12 vertically.The two ends of amortisseur bar 16 are connected with the short board 16a of circular plate with holes shape.Short board 16a also from axial both sides by fastening for rotor core 12.
Axially be formed with in rotor core 12 part not arranging plywood 31, this part is the gap and the pipeline 33 (Fig. 2, Fig. 3) that utilize not shown distance piece to become radial stream.Pipeline 33 becomes the stream be directly communicated with the radial outside of rotor 10 by axial flow path 13a.That is, in pipeline 33, cooling gas flows out along whole circumference towards radial outside.In addition, although the place shown in the axial direction is provided with the situation of pipeline 33, this is not limited to.Also in the axial direction pipeline 33 can be set position, many places.Position is set can be decided by the overall flow of the cooling gases such as the such as air in electric rotating machine 100 and flow distribution etc. of pipeline 33.
Stator 20 is provided with at the radial outside of rotor core 12.Stator 20 is drum, and radially inner side and the radial outside of rotor 10 of stator 20 clip gap and relative.Rotor core 12, rotor coil 14 and stator 20 are accommodated in not shown housing.The stream of cooling gas (such as air) is formed in housing, in rotor 10, cooling gas, from after the end of the axial both sides of rotor 10 is flow through vertically in axial flow path 13a, flows out from pipeline 33 (Fig. 2, Fig. 3) to radial outside.
Fig. 4 is the longitudinal sectional view of the details in the IV portion representing Fig. 3.Fig. 5 is the stereogram of the combination schematically showing duplexer.
Pipeline 33 is formed between the 1st duplexer 32a arranged vertically in duplexer 32 and the 2nd duplexer 32b.1st duplexer 32a has multiple 1st plywood 31a stacked vertically.2nd duplexer 32b has multiple 2nd plywood 31b stacked vertically.Except near pipeline 33, be formed with one heart with the central opening 37 of diameter in multiple 1st stacked plate 31a centre separately.The diameter of central opening 37 is that the circumscribed circle of the multiple ribs 13 being installed on armature spindle 11 adds the gap value that armature spindle 11 can be inserted into duplexer 32.
Near the pipeline 33 of the 1st duplexer 32a, the diameter of each opening formed in the central authorities of the 1st duplexer 32a increases in two benches along with near pipeline 33, forms end difference 34a and end difference 34b.Specifically, the end difference 34a central opening 37a being formed at the 1st stacked plate 31a is separately greater than central opening 37.The end difference 34b adjacent with the pipeline 33 central opening 37b being formed at the 1st stacked plate 31a is separately greater than central opening 37a further.
Similarly, the 2nd duplexer 32b has multiple 2nd plywood 31b stacked vertically.Except near pipeline 33, be formed with one heart with the central opening 38 of diameter in multiple 2nd stacked plate 31b centre separately.Same with central opening 37, the diameter of central opening 38 is that the circumscribed circle of the multiple ribs 13 being installed on armature spindle 11 adds the gap value that armature spindle 11 can be inserted into duplexer 32.
Near the pipeline 33 of the 2nd duplexer 32b, the diameter of each opening formed in the central authorities of the 2nd duplexer 32b increases in two benches along with near pipeline 33, forms end difference 35a and end difference 35b.Specifically, the end difference 35a central opening 38a being formed at the 2nd stacked plate 31b is separately greater than central opening 38.The end difference 35b adjacent with the pipeline 33 central opening 38b being formed at the 2nd stacked plate 31b is separately greater than central opening 38a further.
In addition, although the diameter that the diameter showing the opening being formed at end difference 34a and 34b is situation, the i.e. opening that two benches increases has the situation of 3 kinds, this is not limited to.Such as, as long as the diameter of opening is along with the monotone increasing near pipeline 33 vertically, then can be 2 kinds, or also can be more than 3 kinds.Or, also can duplexer 32 be drilled to coniform vertically, thus the diameter of the opening of each stacked plate 31 is formed as continuous increase.
In addition, although show the porch at pipeline 33, form end difference 34a and end difference 34b at the 1st duplexer 32a, and also form the situation of end difference 35a and end difference 35b respectively symmetrically with end difference 34a and end difference 34b at the 2nd duplexer 32b, but be not limited to the situation of this symmetry.The shape of end difference 34a and end difference 34b also can be different.In addition, also can only either party be formed with end difference wherein.
Shape and the size that can consider the flow regime of the cooling gas around such as rotor 10, improve the degree of cooling effectiveness because forming end difference, deciding end difference for forming the operation burden etc. in hole.
In the present embodiment formed like that above, when the cooling of stream 13a flowing is vertically with gas flow ipe 33, owing to being formed with entrance enlarged portion 36, therefore, the sharply change of flow direction is eased, and the pressure loss caused because of sharply changing of flow direction is eased.In addition, the entrance of pipeline 33 slowly narrows, and therefore, the pressure loss caused because of sharply reducing of flowing is eased.Like this, by alleviating and reducing the generation of pressure loss, thus the flowing of cooling gas in electric rotating machine 100 is better, and cooling performance is improved.
Above, although the description of embodiments of the present invention, but execution mode just exemplarily presents, and does not really want to limit invention scope.Such as, in execution mode, show the situation that the central opening being formed at stacked plate becomes the key element forming axial flow path, but be not limited to this.Such as, even if when opening that is different from central opening, that be formed at stacked plate is connected and forms axial flow path, also applicable the present invention.
In addition, execution mode can be implemented by other various mode, in the scope not departing from invention main points, can carry out various omission, displacement, change.
In the scope of the invention that this execution mode and distortion thereof are included in described in claims in the same manner as being included in scope of invention and main points and equalization thereof.
Label declaration
10 rotors
11 armature spindles
12 rotor cores
12a slit
13 ribs
13a axial flow path
14 rotor coils
15 clamping bars
15a fixture
15b nut
16 amortisseur bars
16a short board
17 retaining rings
20 stators
31 stacked plates
The stacked plate of 31a the 1st
The stacked plate of 31b the 2nd
32 duplexers
32a the 1st duplexer
32b the 2nd duplexer
33 pipelines
34a, 34b, 35a, 35b end difference
36 entrance enlarged portion
37,37a, 37b, 38,38a, 38b central opening
100 electric rotating machines
Claims (7)
1. an electric rotating machine, this electric rotating machine comprises rotor and is arranged on the stator of radial outside of described rotor, it is characterized in that,
Described rotor possesses:
Armature spindle, this armature spindle can be rotated by pivot suspension, and extends vertically centered by rotating shaft; And
Rotor core, this rotor core has multiple duplexer, the plurality of duplexer by be arranged on described armature spindle outside, there is the central opening that formed with one heart and rounded multiple stacked plate carries out stacked with one heart along described axis and obtains in central authorities, the plurality of duplexer is by having mutual interval along the part that described axis is adjacent each other, form the pipeline for making cooling gas pass through towards radial outside
Described rotor core has along described axially extended axial flow path, clipping at least one duplexer in described pipeline described duplexer respect to one another, the area of the described axial flow path of described Near Pipelines increases along with along described axis is dull near described pipeline.
2. electric rotating machine as claimed in claim 1, is characterized in that,
Also possess rotor coil, this rotor coil is arranged near the radial surface of described rotor core, axially extends along described, and spaced interval configuration in the circumferential.
3. electric rotating machine as claimed in claim 1 or 2, is characterized in that,
Also possesses multiple rib, the plurality of rib axially extends along described, be configured in the radial outside of described armature spindle, spaced interval is installed in the circumferential, thus described rotor core is supported from its Inner week side, described rotor core and described armature spindle are fixed with one heart
Described duplexer is arranged on the outside of the described multiple rib being installed on described armature spindle, except described Near Pipelines, described duplexer is positioned diametrically with one heart by described multiple rib, the described central opening of the radial outside of described armature spindle axially connects along described, thus form described axial flow path
Clip at least one duplexer in described pipeline described duplexer respect to one another, the area being formed at the central opening of described stacked plate of described Near Pipelines increases along with along described axis is dull near described pipeline.
4. electric rotating machine as claimed any one in claims 1 to 3, is characterized in that,
Also possess multiple bar-shaped clamping bar, the plurality of bar-shaped clamping bar, along the through all described stacked plates of described axis, makes all described stacked plate of described rotor core concentric to utilize radial location.
5. the electric rotating machine according to any one of Claims 1-4, is characterized in that,
Also possess two fixtures, these two fixtures are arranged on the described axial both sides of described rotor core to clamp described rotor core, thus from rotor core described in described two axial side compressions,
Multiple described clamping bar is formed as two ends to be connected respectively with described two fixtures, can axially fasten via described fixture described in described rotor core edge.
6. the electric rotating machine according to any one of claim 1 to 5, is characterized in that,
The area of the described axial flow path of described Near Pipelines increases along with along described axis, near described pipeline, stepped ground is dull.
7. a rotor for electric rotating machine, is characterized in that, possesses:
Armature spindle, this armature spindle can be rotated by pivot suspension, and extends vertically centered by rotating shaft; And
Rotor core, this rotor core has multiple duplexer, the plurality of duplexer by be arranged on described armature spindle outside, there is the central opening that formed with one heart and rounded multiple stacked plate carries out stacked with one heart along described axis and obtains in central authorities, the plurality of duplexer is by having mutual interval along the part that described axis is adjacent each other, form the pipeline for making cooling gas pass through towards radial outside
Described rotor core has along described axially extended axial flow path, clipping at least one duplexer in described pipeline described duplexer respect to one another, the area of the described axial flow path of described Near Pipelines increases along with along described axis is dull near described pipeline.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014146045A JP2016025674A (en) | 2014-07-16 | 2014-07-16 | Rotary electric machine and rotator |
| JP2014-146045 | 2014-07-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105281462A true CN105281462A (en) | 2016-01-27 |
Family
ID=55149982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510413909.4A Pending CN105281462A (en) | 2014-07-16 | 2015-07-15 | Rotary motor and rotor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2016025674A (en) |
| CN (1) | CN105281462A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018186617A (en) * | 2017-04-25 | 2018-11-22 | 東芝三菱電機産業システム株式会社 | Rotating electric machine and rotor thereof |
| CN111463941A (en) * | 2019-01-18 | 2020-07-28 | 本田技研工业株式会社 | Rotor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11047603B2 (en) | 2017-04-14 | 2021-06-29 | Mitsubishi Electric Corporation | Rotor, motor, and air conditioning apparatus |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52158302U (en) * | 1976-05-25 | 1977-12-01 | ||
| JPS5625951U (en) * | 1979-08-02 | 1981-03-10 | ||
| JPH0472848U (en) * | 1990-10-26 | 1992-06-26 | ||
| JPH05161288A (en) * | 1992-06-09 | 1993-06-25 | Hitachi Ltd | Rotor of rotating machine |
| JP2003319588A (en) * | 2002-04-19 | 2003-11-07 | Nishishiba Electric Co Ltd | Rotor for motor |
| CN102725945A (en) * | 2009-12-17 | 2012-10-10 | Abb有限公司 | Arrangement and method for cooling an electrical machine |
| CN202978485U (en) * | 2012-10-24 | 2013-06-05 | 重庆赛力盟电机有限责任公司 | Rotor fanning strip fixing device |
| CN103155363A (en) * | 2010-10-07 | 2013-06-12 | 利莱森玛电机公司 | Rotor comprising added pole shoes covering the magnets and a rotary electric machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5513617A (en) * | 1978-07-12 | 1980-01-30 | Toshiba Corp | Stator for rotary electric machine |
-
2014
- 2014-07-16 JP JP2014146045A patent/JP2016025674A/en active Pending
-
2015
- 2015-07-15 CN CN201510413909.4A patent/CN105281462A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52158302U (en) * | 1976-05-25 | 1977-12-01 | ||
| JPS5625951U (en) * | 1979-08-02 | 1981-03-10 | ||
| JPH0472848U (en) * | 1990-10-26 | 1992-06-26 | ||
| JPH05161288A (en) * | 1992-06-09 | 1993-06-25 | Hitachi Ltd | Rotor of rotating machine |
| JP2003319588A (en) * | 2002-04-19 | 2003-11-07 | Nishishiba Electric Co Ltd | Rotor for motor |
| CN102725945A (en) * | 2009-12-17 | 2012-10-10 | Abb有限公司 | Arrangement and method for cooling an electrical machine |
| CN103155363A (en) * | 2010-10-07 | 2013-06-12 | 利莱森玛电机公司 | Rotor comprising added pole shoes covering the magnets and a rotary electric machine |
| CN202978485U (en) * | 2012-10-24 | 2013-06-05 | 重庆赛力盟电机有限责任公司 | Rotor fanning strip fixing device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018186617A (en) * | 2017-04-25 | 2018-11-22 | 東芝三菱電機産業システム株式会社 | Rotating electric machine and rotor thereof |
| CN111463941A (en) * | 2019-01-18 | 2020-07-28 | 本田技研工业株式会社 | Rotor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2016025674A (en) | 2016-02-08 |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160127 |
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