CN103636102A - Rotator of rotating electric machine - Google Patents
Rotator of rotating electric machine Download PDFInfo
- Publication number
- CN103636102A CN103636102A CN201180072048.8A CN201180072048A CN103636102A CN 103636102 A CN103636102 A CN 103636102A CN 201180072048 A CN201180072048 A CN 201180072048A CN 103636102 A CN103636102 A CN 103636102A
- Authority
- CN
- China
- Prior art keywords
- fuse
- lamination
- stacked
- axle
- rotor
- 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.)
- Granted
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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
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
A rotator of a rotating electric machine that is constructed by press-fitting a shaft (2) into a penetration hole created in a laminated core (3), wherein protruded strip sections (2a) engaged with the inner wall of the penetration hole are formed on the outer circumferential surface of the shaft (2), the laminated core (3) is segmented into stacked core sections (3b, 3c) having predetermined distances in the axial direction, and relief grooves (3a), which are not engaged with the protruded strip sections (2a), are formed in the circumferential direction on the inner walls of the respective stacked core sections (3b, 3c).
Description
Technical field
The present invention relates to the rotor of electric rotating machine, relate in particular to the stacked fuse of the rotor of the electric rotating machine in motor etc. and the embedded structure of axle for Denso.
Background technology
By utilizing punching press, to metallic plates such as silicon steel plate, motor mild steel plates, punch stacked, riveted joint forms the stacked fuse of the rotor conventionally using in motor, generator.Afterwards, axial compression is entered in the stacked fuse forming as described above, and complete rotor by inserting magnet or winding etc.
An example as the rotor structure of such electric rotating machine, has the rotor structure shown in patent documentation 1.
In rotor structure shown in patent documentation 1, the position being fixed at the stacked fuse of the outer peripheral face of axle equally spaced disposes four projecting strip parts that axially extend on circumferentially.The external diameter that does not comprise the axle of projecting strip part forms slightly less than the internal diameter of stacked fuse, and the external diameter of the axle that comprises projecting strip part forms slightly larger than the internal diameter of stacked fuse, and projecting strip part is cut apart ditch by two and cut apart.
In addition,, as other conventional example, have the rotor structure shown in patent documentation 2.As shown in Figure 3, in the rotor structure shown in this patent documentation 2, in the chimeric surface of rotating shaft 2 and rotor core 3, be provided with the projecting strip part 2a of approximate equality on direction of principal axis, and be constructed so that the circumferential position of projecting strip part 2a is different.According to this structure, in the time of in rotor core 3 is pressed into rotating shaft 2, projecting strip part is trapped in the new part of the rotor core 3 of the opposition side being pressed into, owing to there not being the wearing and tearing that are absorbed in ditch, therefore interlock is firm and between rotor core, thereby obtain reliable combination, and because the formation position of projecting strip part axially roughly distributes equably, therefore can obtain inlay resultant force more by force, the comparatively rotating shaft 2 and rotor core 3 of balance.
Prior art document
Patent documentation
Patent documentation 1: Japanese Patent Laid-Open 2004-343970 communique
Patent documentation 2: Japan Patent is opened clear 57-47840 communique in fact
Summary of the invention
Invent technical problem to be solved
In above-mentioned such existing structure, because the projecting strip part that starts to be most pressed in stacked fuse is pressed into the whole axial length of stacked fuse, so projecting strip part can be damaged.Therefore be pressed into length longer in the situation that, have and stacked fuse between the problem that significantly reduces of adhesion.
The present invention completes in order to address the above problem, it is a kind of without special equipment and without increasing processing and components and parts number that its object is to provide, just can suppress the shaft vibration of axle, and between stacked fuse and axle, there is the rotor of the electric rotating machine of enough inlay resultant forces.
The technical scheme that technical solution problem adopts
In the rotor of electric rotating machine involved in the present invention, central portion at stacked fuse is provided with through hole, axle is press-fit in this through hole, on the outer peripheral face of described axle, be formed with and the inwall tabling of described through hole and the projecting strip part extending on direction of principal axis, and described stacked fuse is divided into the lamination fuse portion of predetermined distance on direction of principal axis, in the inner circumferential wall of the described through hole of each the lamination fuse portion being divided, be formed with not the groove of keeping out of the way with described projecting strip part tabling.
In addition the position of keeping out of the way groove that, is formed at described each lamination fuse portion form week upwards with other lamination fuse portion keep out of the way groove mutually in diverse location.
Invention effect
According to the rotor of electric rotating machine of the present invention, can obtain a kind ofly without special equipment and without increasing processing and components and parts number, just can suppress the shaft vibration of axle, and between stacked fuse and axle, there is the rotor of the electric rotating machine of enough inlay resultant forces.
About the above and other object of the present invention, feature, effect, detailed description that can be from following execution mode and the record of accompanying drawing come further clear and definite.
Accompanying drawing explanation
Fig. 1 means the sectional view of structure of rotor of the electric rotating machine of embodiments of the present invention 1.
Fig. 2 is along the B-B line of Fig. 1 and the cutaway view of C-C line.
Fig. 3 means the sectional view of an example of the rotor of existing electric rotating machine.
Embodiment
Execution mode 1
Below, with reference to accompanying drawing, describe embodiments of the present invention 1 in detail.In addition,, in each figure, same numeral represents identical or suitable part.
Fig. 1 means the sectional view of brief configuration of rotor of the electric rotating machine of execution mode 1.Fig. 2 is along the B-B line of Fig. 1 and the cutaway view of C-C line.
In Fig. 1, Fig. 2, rotor is pressed into axle 2 stacked fuse 3 and utilizes projecting strip part 2a to carry out chimeric.In stacked fuse 3, dispose not shown magnet.
Stacked fuse 3 adopts following structure: what on inner peripheral surface, be formed with projecting strip part 2a keeps out of the way groove 3a, this projecting strip part 2a is formed at the outer peripheral face of axle 2, in the situation that axle 2 is pressed in the through hole of stacked fuse 3, the inner peripheral surface of stacked fuse 3 does not occur chimeric with the whole region of outer peripheral face of axle 2.
That is, stacked fuse 3 is divided into the lamination fuse 3b of portion, the 3c of predetermined distance (being specific length) on direction of principal axis, in each the lamination fuse 3b of portion, 3c, in inner circumferential wall separately, be formed with not with projecting strip part 2a chimeric keep out of the way groove 3a.
In addition, as shown in Figure 2, adopt following structure: the groove 3a that keeps out of the way that is formed at the lamination fuse 3b of portion makes progress in mutually different positions in week from the groove 3a that keeps out of the way that is formed at the lamination fuse 3c of portion.
The external diameter of the axle 2 that comprises projecting strip part 2a forms slightly larger than the internal diameter of stacked fuse 3.It is identical or be slightly smaller than the internal diameter of stacked fuse 3 that the external diameter that does not comprise the axle 2 of projecting strip part 2a is set as internal diameter with stacked fuse 3, but if less than the height of axle projecting strip part 2a, though slightly large than the internal diameter of stacked fuse 3, also no problem in function.
Embedded structure between axle 2 and stacked fuse 3 forms as follows.
In Fig. 1, from figure, directions X is pressed into axle 2 to stacked fuse 3.
If axle 2 is pressed into the through hole of stacked fuse 3, due to the axle external diameter that comprises projecting strip part 2a form larger than the internal diameter of stacked fuse 3, so projecting strip part 2a can due to and stacked fuse 3 between chimeric and damaged.If projecting strip part 2a is all chimeric with the interior week of stacked fuse 3, be pressed into length longer in the situation that, the chimeric meeting between impaired second half section of projecting strip part 2a and stacked fuse 3 dies down.
In embodiments of the present invention 1, on direction of principal axis, divide stacked fuse 3 and in each the lamination fuse 3b of portion, 3c of forming, be all formed with projecting strip part keep out of the way groove 3a, therefore can not cause all projecting strip part 2a damaged owing to being pressed into.
In Fig. 1, the lamination fuse 3b of portion is pressed into while finishing, and axle is press-fit in the lamination fuse 3c of portion.About being pressed into the projecting strip part 2a of the axle in the lamination fuse 3c of portion, utilize in the lamination fuse 3b of portion, to be positioned at the projecting strip part 2a that keeps out of the way groove 3a present position and to carry out chimericly, therefore can not make inlay resultant force decline, can make the lamination fuse 3c of portion and axle carry out chimeric.
In addition, even if the lamination thickness of every of the lamination fuse 3b of portion, 3c (being axial length or interval) is non-constant, also can apply the present invention.That is,, by the lamination thickness of the change lamination fuse 3b of portion, 3c, can adjust inlay resultant force.
In addition, by adjust the number of keeping out of the way groove 3a of projecting strip part for each the lamination fuse 3b of portion, 3c, thereby can set inlay resultant force to each lamination fuse portion.
As mentioned above, the rotor of 1 electric rotating machine according to the embodiment of the present invention, can play excellent feature, the action effect of the following stated.
By what be arranged at projecting strip part in stacked fuse 3, keep out of the way groove 3a, can be not all and the structure that is pressed into portion's tabling thereby become all projecting strip part 2a.Each predetermined distance, be the lamination fuse portion of constant length, or and in inconstant each lamination fuse portion, due to what be all formed with projecting strip part, keep out of the way groove 3a, while therefore completing in the portion of being pressed into of the lamination fuse 3b of portion starting most, in the next lamination fuse 3c of portion, the projecting strip part different from previous projecting strip part guaranteed the inlay resultant force between stacked fuse 3c and axle.Therefore, be no matter which lamination fuse portion all can guarantee all the time and axle between inlay resultant force fully.
Therefore in addition, because each lamination fuse 3b of portion, 3c have guaranteed certain inlay resultant force all the time, if projecting strip part damages, can alleviate the impact of the residual stress that the metal derby that produces by being pressed into causes, therefore can alleviate the bending shaft that causes by being pressed into etc.
A plurality of projecting strip part 2a that are formed at the outer peripheral face of axle 2 can tackle uniformly-spaced or any structure of unequal interval.By the position of keeping out of the way groove 3a of projecting strip part and the position of projecting strip part 2a that are arranged at lamination fuse portion are coincided, thereby can adjust the inlay resultant force between lamination fuse portion and axle and guarantee inlay resultant force.
By (stacked fuse 3 is divided into constant interval, constant length) the lamination fuse 3b of portion, 3c, what in each the lamination fuse 3b of portion, 3c, form axle projecting strip part 2a keeps out of the way groove 3a, and set and keep out of the way groove number according to inlay resultant force required between lamination fuse portion and axle, thereby can set inlay resultant force to each lamination fuse portion.
In addition, by stacked fuse 3 being divided into the lamination fuse portion at non-constant interval, what in each lamination fuse portion, form axle projecting strip part keeps out of the way groove 3a, and adjusts the lamination thickness of lamination fuse portion, thereby can adjust the inlay resultant force between each lamination fuse portion and axle.
In addition, be formed at stacked fuse 3 sides axle projecting strip part 2a keep out of the way the effect that groove 3a also has the weight saving that makes stacked fuse 3.By making to keep out of the way groove 3a, become large, can try hard to make the weight saving of stacked fuse.
And, by utilizing punching press, to metallic plates such as silicon steel plate, motor mild steel plates, punch stacked, riveted joint forms the stacked fuse of the rotor conventionally using in the rotor of motor, the groove 3a that keeps out of the way being formed in stacked fuse is carrying out when stacked, also having the effect that can play positioning function to fuse.
Industrial practicality
The present invention is applicable to the stacked fuse of the rotor of the middle motor such as motor and the embedded structure between axle for Denso.
Label declaration
2: axle, 2a: projecting strip part, 3: stacked fuse, 3a: keep out of the way groove
3b, 3c: lamination fuse portion
Claims (4)
1. a rotor for electric rotating machine, is provided with through hole at the central portion of stacked fuse, and axle is pressed in this through hole, it is characterized in that,
On the outer peripheral face of described axle, be formed with and the inwall tabling of described through hole and the projecting strip part extending on direction of principal axis,
And described stacked fuse is divided into the lamination fuse portion of predetermined distance on direction of principal axis, in the inner circumferential wall of the described through hole of each the lamination fuse portion being divided, be formed with not the groove of keeping out of the way with described projecting strip part tabling.
2. the rotor of electric rotating machine as claimed in claim 1, is characterized in that,
The position of keeping out of the way groove that is formed at described each lamination fuse portion form week upwards with other lamination fuse portions keep out of the way groove mutually in diverse location.
3. the rotor of electric rotating machine as claimed in claim 1 or 2, is characterized in that,
Described predetermined distance is constant interval.
4. the rotor of electric rotating machine as claimed in claim 1 or 2, is characterized in that,
Described predetermined distance is unequal interval.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2011/073663 WO2013054438A1 (en) | 2011-10-14 | 2011-10-14 | Rotator of rotating electric machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103636102A true CN103636102A (en) | 2014-03-12 |
| CN103636102B CN103636102B (en) | 2016-04-27 |
Family
ID=48081513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180072048.8A Expired - Fee Related CN103636102B (en) | 2011-10-14 | 2011-10-14 | The rotor of electric rotating machine |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6000270B2 (en) |
| CN (1) | CN103636102B (en) |
| WO (1) | WO2013054438A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020059423A1 (en) * | 2018-09-21 | 2020-03-26 | 三菱電機株式会社 | Rotary electric machine and manufacturing method for same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4012653A (en) * | 1973-10-17 | 1977-03-15 | Hitachi, Ltd. | Low noise alternating current dynamoelectro machine |
| JP2006217770A (en) * | 2005-02-07 | 2006-08-17 | Oriental Motor Co Ltd | Fastening structure of rotor core to shaft of motor |
| CN101189780A (en) * | 2005-06-07 | 2008-05-28 | 株式会社美姿把 | Armature of rotating electric machine and method of manufacturing the same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5747840U (en) * | 1980-09-03 | 1982-03-17 | ||
| JPH07298527A (en) * | 1994-04-27 | 1995-11-10 | Asmo Co Ltd | Rotor structure for electric rotating machine with laminated core |
| JPH09294347A (en) * | 1996-04-25 | 1997-11-11 | Tokyo Parts Ind Co Ltd | Laminated core for rotating electric machine |
| JP3770300B2 (en) * | 1999-03-17 | 2006-04-26 | セイコーエプソン株式会社 | Rotor and stepper motor |
| JP2006129583A (en) * | 2004-10-27 | 2006-05-18 | Asmo Co Ltd | Motor |
-
2011
- 2011-10-14 JP JP2013538409A patent/JP6000270B2/en not_active Expired - Fee Related
- 2011-10-14 CN CN201180072048.8A patent/CN103636102B/en not_active Expired - Fee Related
- 2011-10-14 WO PCT/JP2011/073663 patent/WO2013054438A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4012653A (en) * | 1973-10-17 | 1977-03-15 | Hitachi, Ltd. | Low noise alternating current dynamoelectro machine |
| JP2006217770A (en) * | 2005-02-07 | 2006-08-17 | Oriental Motor Co Ltd | Fastening structure of rotor core to shaft of motor |
| CN101189780A (en) * | 2005-06-07 | 2008-05-28 | 株式会社美姿把 | Armature of rotating electric machine and method of manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2013054438A1 (en) | 2015-03-30 |
| WO2013054438A1 (en) | 2013-04-18 |
| JP6000270B2 (en) | 2016-09-28 |
| CN103636102B (en) | 2016-04-27 |
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Legal Events
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| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160427 Termination date: 20211014 |
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| CF01 | Termination of patent right due to non-payment of annual fee |