CN104348276A - Rotating motor - Google Patents
Rotating motor Download PDFInfo
- Publication number
- CN104348276A CN104348276A CN201410377004.1A CN201410377004A CN104348276A CN 104348276 A CN104348276 A CN 104348276A CN 201410377004 A CN201410377004 A CN 201410377004A CN 104348276 A CN104348276 A CN 104348276A
- Authority
- CN
- China
- Prior art keywords
- groove
- recess
- protuberance
- rotor bar
- radial direction
- 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
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
- H02K1/26—Rotor cores with slots for windings
- H02K1/265—Shape, form or location of the slots
-
- 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
- H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
- H02K17/20—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors having deep-bar rotors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Induction Machinery (AREA)
Abstract
The present invention provides a rotating motor capable of reducing iron loss and achieving high torque characteristics. The rotating motor (1) having a stator (3) and a rotor having: a rotor core (6), which includes a groove (20); and a rotor bar (30) disposed in the slot (20), the groove (20) and the rotor bars (30) each including a convex portion (22, 31) and a recess (21,32) in the circumferential direction of the side surfaces on both sides. Further, the rotor core (6) includes an outer edge portion (19), the outer edge portion (19) extending in the circumferential direction, and the outer edge portion (19) the groove (20) of the exposed portion radially outward and covering the groove (20) of the other portions.
Description
Technical field
Disclosed execution mode relates to electric rotating machine.
Background technology
The rotor being formed the induction motor of multiple rotor bar by the die casting of aluminium, copper or its alloy in multiple groove is described, the peripheral openings of described groove not in iron core portion but through vertically in patent documentation 1.
Patent documentation 1: Japanese Patent Publication 5-78178 publication
But in the technical scheme that patent documentation 1 is recorded, be also provided with the peripheral part in iron core portion outside the radial direction of groove in the mode covering groove, therefore iron loss increases and inefficiency, thus is difficult to the large torque of electric rotating machine when realizing High Rotation Speed.
Summary of the invention
The present invention completes in view of such problem just, its object is to provide can reduce iron loss and the electric rotating machine realizing large torque.
For solving above-mentioned problem, according to a viewpoint of the present invention, apply a kind of electric rotating machine, it has stators and rotators, and described rotor has: rotor core, and it possesses groove; And rotor bar, it is configured at described groove, and described groove and described rotor bar comprise 1 protuberance or 1 recess in the side of circumferencial direction both sides.
According to the present invention, can iron loss be reduced and realize large torque.
Accompanying drawing explanation
Fig. 1 is the integrally-built axial, cross-sectional view of the electric rotating machine roughly representing an execution mode.
Fig. 2 is the conceptual cross-sectional view along the A-A line in Fig. 1.
Fig. 3 is the conceptual amplification cross-sectional view representing groove and rotor bar.
Fig. 4 is not provided with the curve chart that the 1st comparative example of concavo-convex snap-in structure and execution mode carry out contrasting the raising effect of the torque representing an execution mode.
Fig. 5 be the situation of the 2nd comparative example and an execution mode making the side view of the recess of rotor bar become curve shape carry out action when contrasting the contraction representing rotor bar schematically illustrate figure.
Fig. 6 be represent in the variation of the radial direction length increasing protuberance and recess, the conceptual amplification cross-sectional view of groove and rotor bar.
Fig. 7 represents to arrange protuberance in the side of the both sides of groove and the conceptual amplification cross-sectional view arranging in the variation of recess, groove and rotor bar in the side of the both sides of rotor bar.
Fig. 8 represents to arrange recess in the side of the both sides of groove and the conceptual amplification cross-sectional view arranging in the variation of protuberance, groove and rotor bar in the side of the both sides of rotor bar.
Label declaration
1: electric rotating machine;
2: stator;
3: rotor;
4: rotor core;
19: outer edge;
20: groove;
21: recess;
22: protuberance;
23: recess;
24: protuberance;
30: rotor bar;
31: protuberance;
31a: roughly line part;
32: recess;
32a: roughly line part;
33: protuberance;
34: recess.
Embodiment
Below, with reference to accompanying drawing, an execution mode is described.
The overall structure > of < electric rotating machine
First, with reference to Fig. 1 and Fig. 2, the overall structure of the electric rotating machine of present embodiment is described.
As shown in Figures 1 and 2, the electric rotating machine 1 of present embodiment is so-called inner-rotor type motor, is specially inner-rotor type induction motor, and it has the stator 2 of general cylindrical shape and the rotor 3 of general cylindrical shape, and rotor 3 is configured in the inside of stator 2.A side in stator 2 and rotor 3 plays function as armature, and the opposing party plays function as magnetic field.Further, electric rotating machine 1 has: be arranged at the framework 9 of the general cylindrical shape of the outer circumferential side of stator 2, load-side bracket 11, load-side opposition side bracket 12 and rotating shaft 8.Axial opposite side (the load-side of load-side bracket 11 closed frame 9.In Fig. 1 right side) peristome (not shown).(the load-side opposition side, axial side of load-side opposition side bracket 12 closed frame 9.In Fig. 1 left side) peristome (not shown).Rotating shaft 8 is supported to rotatable by bearing 10a, 10b, and the outer ring of described bearing 10a, 10b is embedded in bracket 11,12 respectively.
Stator 2 has stator core 4 and stator coil 5.Stator core 4 is fixed on the inner peripheral surface of framework 9 chimericly and has yoke portion and teeth portion.Inside the radial direction of this stator core 4 (inner peripheral portion), be spaced vertically (direction perpendicular to paper in left and right directions, Fig. 2 in Fig. 1) through multiple grooves 15 with suitable in a circumferential direction.Stator coil 5 is installed on the teeth portion of stator core 4.End winding 5a, the 5b at the axial two ends of this stator coil 5 are bent into respectively and are close to axial both ends 4a, 4b of stator core 4.Thus, improve the thermal conductivity that the heat that produced by stator coil 5 transmits to stator core 4.
Rotor 3 is arranged at the outer peripheral face of rotating shaft 8, and opposed with the inner peripheral surface of stator 2 in the mode separating magnetic gap in the radial direction.
The detailed construction > of < rotor
Next, with reference to Fig. 1 ~ Fig. 3, the detailed construction of rotor 3 is described.
As shown in FIG. 1 to 3, rotor 3 has rotor core 6 and multiple rotor bar 30 of general cylindrical shape, and described rotor core 6 is fixed on the outer peripheral face of rotating shaft 8.
Rotor core 6 possesses: be embedded in the linking part 17 of the cylindrical shape of rotating shaft 8, multiple tooth 18, multiple groove 20 and multiple outer edge 19 in the mode of surrounding rotating shaft 8.Multiple tooth 18 is arranged to separate suitable interval from linking part 17 in a circumferential direction to the mode that radial direction is protruding outside.Multiple groove 20 is groove portions that above-mentioned multiple teeth 18 of (peripheral part) are formed each other outside the radial direction of rotor core 6, and through vertically respectively.Each outer edge 19 is exposed to make the part outside the radial direction of groove 20 (in this example for circumferencial direction central portion) and covers the mode at position in addition, along the circumferential direction extended outside the radial direction of tooth 18.That is, in the present embodiment, groove 20 is the so-called semi-open groove structures utilizing outer edge 19 that the part outside radial direction is exposed and cover position in addition, and is formed with the peristome 40 exposing groove 20.
Each rotor bar 30 is such as made up of electric conducting material, inserts be configured at groove 20 in the mode of filling slot 20.The two ends of each rotor bar 30 are given prominence to from groove 20, and are interconnected by the not shown short circuit ring be wholely set with rotor bar 30.
Further, rotor core 6 is such as made up of metal materials such as magnetic steel plates, rotor bar 30 by coefficient of linear expansion larger than the metal material forming above-mentioned rotor core 6, the metal material such as such as aluminium forms.Under these circumstances, being configured at groove 20 to be inserted by rotor bar 30, pressurization can being carried out to metal materials such as the such as aluminium of molten condition and making it flow into groove 20, thus manufacturing rotor bar 30 by so-called die cast.
As shown in Figure 3, groove 20 and rotor bar 30 are configured to, and comprise 1 protuberance or 1 recess respectively in the side (end faces of the circumferencial direction both sides in other words, when the cross-sectional view orthogonal with rotating shaft 8) of circumferencial direction both sides.
Particularly, the side on the side of groove 20 in the side of circumferencial direction both sides (in Fig. 3 right side) is provided with 1 protuberance 22, and the side (in Fig. 3 left side) of opposite side is provided with 1 recess 21.Now, the radial direction length of the protuberance 22 of the side of above-mentioned side and the recess 21 of the side of above-mentioned opposite side each other roughly the same (in this example, for the side of the circumferencial direction of groove 20 radial direction length about 1/4 ~ 1/3 length), and radial direction position (being radial direction middle position in detail) is roughly the same each other, and, the recess 21 of the protuberance 22 of the side of above-mentioned side and the side of above-mentioned opposite side is configured to a part on the radial direction Central Line 20C of the side of groove 20 through (such as radial direction middle position is on Central Line 20C).
On the other hand, the side of the above-mentioned side of rotor bar 30 in the side of circumferencial direction both sides is provided with 1 recess 32 engaged with the protuberance 22 of above-mentioned groove 20, is provided with 1 protuberance 31 engaged with the recess 21 of above-mentioned groove 20 in the side of above-mentioned opposite side.Now, the radial direction length of the recess 32 of the side of above-mentioned side and the protuberance 31 of the side of above-mentioned opposite side each other roughly the same (in this example, for the side of the circumferencial direction of rotor bar 30 radial direction length about 1/4 ~ 1/3 length), and radial direction position (being radial direction middle position in detail) is roughly the same each other, and, the protuberance 31 of the recess 32 of the side of above-mentioned side and the side of above-mentioned opposite side is configured to a part on the radial direction Central Line 30C of the side of rotor bar 30 through (such as radial direction middle position is on Central Line 30C).
And inserted by rotor bar 30 under the state being configured at groove 20, the protuberance 22 of groove 20 and the recess 32 of rotor bar 30 engage in the side of above-mentioned side, and the recess 21 of groove 20 and the protuberance 31 of rotor bar 30 engage in the side of above-mentioned opposite side.Thus, the tooth 18 of rotor core 6 and the side respectively concavo-convex engaging of rotor bar 30 in above-mentioned both sides.
And, the recess 32 of above-mentioned rotor bar 30 to be formed as outside radial direction (in Fig. 3 downside) inside (in Fig. 3 upside) and radial direction and to possess the side view (end surface shape in other words, when the cross-sectional view orthogonal with rotating shaft 8) of the roughly line part 32a along the circumferential direction extended.Similarly, the protuberance 31 of above-mentioned rotor bar 30 is also formed as the side view (end surface shape in other words, when the cross-sectional view orthogonal with rotating shaft 8) possessing the roughly line part 31a along the circumferential direction extended outside radial direction and inside radial direction.
The effect > of < present embodiment
As discussed above, in the electric rotating machine 1 of present embodiment, insert in the groove 20 of rotor core 6 and be configured with rotor bar 30.And then, when rotor 3 rotates, towards the rotor bar 30 of the centrifugal action outside radial direction in groove 20.The rotor bar 30 caused to prevent this centrifugal force is from the disengaging of groove 20, in the present embodiment, on rotor core 6, be provided with outer edge 19 especially, this outer edge 19 makes the part outside the radial direction of this groove 20 expose and covers the position in addition of groove 20.Under these circumstances, the circumferencial direction length outside the radial direction of the covering groove 20 of outer edge 19 is longer, and rigidity is higher, more reliably can obtain the above-mentioned effect preventing departing from.But the circumferencial direction length of outer edge 19 is longer (in other words, above-mentioned peristome 40 is less), and iron loss when electric rotating machine 1 operates is larger, and efficiency is lower.
Therefore, in the electric rotating machine 1 of present embodiment, be respectively arranged with 1 protuberance or 1 recess in the side of the circumferencial direction both sides (side and opposite side) of groove 20 and rotor bar 30.Particularly, in groove 20, be provided with 1 protuberance 22 in the side of above-mentioned side, 1 recess 21 is provided with in the side of above-mentioned opposite side, in rotor bar 30, be provided with 1 recess 32 in the side of above-mentioned side, be provided with 1 protuberance 31 in the side of above-mentioned opposite side.Thus, inserted by rotor bar 30 under the state being configured at groove 20, the tooth 18 of rotor core 6 and rotor bar 30 have carried out concavo-convex engaging respectively in the side of above-mentioned both sides.Its result is, by this concavo-convex engaging, can prevent the disengaging of above-mentioned rotor bar 30.Therefore, even if when as shown in the embodiment outer edge 19 being arranged at rotor core 6, the Min. that the circumferential lengths of outer edge 19 also can be made to necessitate, can effectively utilize magnetic flux, therefore, it is possible to reduce described iron loss.
Thus, and only utilize outer edge 19 to compared with the structure preventing the disengaging of rotor bar 30, larger electric current can be flow through to rotor bar 30, the large torque of electric rotating machine 1 can be realized.Below, with reference to Fig. 4, above-mentioned effect is described in detail.In the diagram, if transverse axis is the rotating speed N of rotor 3, the longitudinal axis is torque T, the curve chart of the characteristic line of the characteristic of the characteristic line showing the characteristic being painted with the electric rotating machine 1 representing present embodiment and the electric rotating machine 1 representing the comparative example (the 1st comparative example) compared with present embodiment.Here, as the 1st comparative example, show and all do not arrange protuberance and recess in the side of the circumferencial direction both sides of groove 20 and rotor bar 30, the side of these both sides is respectively the example of tabular surface.
As shown in Figure 4, in any one party of the electric rotating machine 1 of the 1st comparative example and present embodiment, be all following state: torque T increases along with the rotating speed N of rotor 3 and reduces.But, when electric rotating machine 1 of the 1st comparative example, in order to prevent the disengaging of rotor bar 30 as above, need to make the circumferencial direction length outside the radial direction of the covering groove 20 of outer edge 19 long.Circumferencial direction length outside the radial direction of covering groove 20 making outer edge 19 is long, electric rotating machine 1 iron loss in the running becomes large.Therefore, in the 1st comparative example, be difficult to flow through enough large electric current to rotor bar 30, be difficult to the large torque realizing electric rotating machine 1, therefore as shown in Figure 4, such as, at a certain rotating speed Nt place, torque T is relatively low T1.
On the other hand, in the electric rotating machine 1 of present embodiment, utilize the tooth 18 of rotor core 6 as above and the circumferencial direction both sides concavo-convex engaging separately of rotor bar 30, the above-mentioned effect preventing departing from can be obtained.Its result is, the circumferential lengths of outer edge 19 can be made to become Min., can effectively utilize magnetic flux, therefore, it is possible to reduce described iron loss.Therefore, in the present embodiment, enough large electric current can be flow through to rotor bar 30, reliably can realize the large torque of electric rotating machine 1, therefore as shown in Figure 4, such as, at above-mentioned rotating speed Nt place, the torque T2 that torque T becomes higher than the 1st comparative example can be made.
And, in the present embodiment, especially, on the side of the side in the side of circumferencial direction both sides, groove 20 is provided with protuberance 22 (being provided with recess 32 on rotor bar 30), on the other hand, on the side of opposite side, groove 20 is provided with recess 21 (being provided with protuberance 31 on rotor bar 30), and they are configured in radial direction position roughly the same each other.That is, when observing in the cross sectional shape of rotor bar 30, there is the identical radial direction position of recess 32 in the end of circumferencial direction side, there is protuberance 31 in the end of circumferencial direction opposite side.Correspondingly, in rotor core 6, there is the identical radial direction position of (corresponding with the recess 32 of above-mentioned rotor bar 30) protuberance 22, there is (corresponding with the protuberance 31 of above-mentioned rotor bar) recess 21.Above result is, the length W of the circumferencial direction of the tooth 18 of rotor core 6 (with reference to Fig. 2) can be made more reliably to be formed impartial along radial direction.Its result is, the area that in tooth 18, magnetic flux flows through reliably can be made identical, thus make magnetic flux density equalization further.
Further, in present embodiment, especially, the recess 32 of rotor bar 30 and the side view of protuberance 31 possess roughly line part 32a, 31a of along the circumferential direction extending.Below, with reference to Fig. 5, the effect that roughly line part 32a, 31a brings is possessed to the side view of recess 32 and protuberance 31 and is described.In Figure 5, the side view of recess 32 of rotor bar 30 of comparative example (the 2nd comparative example) compared with present embodiment and the side view of the recess 32 of the rotor bar 30 of present embodiment is shown.Here, as the 2nd comparative example, the side view showing the recess 32 of rotor bar 30 is the example of (not having corner angle such at the protuberance 22 of the groove 20 of this recess 32 and correspondence) curve shape.
That is, as described above, manufacture rotor bar 30 by die cast, in this die cast, in the molten state metal material is pressurizeed the groove 20 making it flow into rotor core 6.And, now, as the metal material forming rotor bar 30, use the material that coefficient of linear expansion is larger than the metal material forming rotor core 6.Therefore, during cooling after die cast, rotor bar 30 shrinks with the shrinkage higher than rotor core 6.Now, in the 2nd comparative example shown in Fig. 5 (a), when rotor bar 30 shrinks, due to the convergent force F acted on from recess 32 pairs of protuberances 22, protuberance 22 likely slides according to above-mentioned curve shape and is released by from recess 32.On the other hand, in the present embodiment shown in Fig. 5 (b), not full curve shape as described above, but be provided with roughly line part 32a at half radial outside of the recess 32 of rotor bar 30 and half radially inner side.Therefore, when rotor conductor 30 shrinks, from the roughly line part 32a of recess 32 to acting on convergent force F in the region roughly between line part 32a respectively along radial direction groove 20, thus can reliably fastening protuberance 22, prevent above-mentioned release.
In addition, the mode of enforcement is not limited to foregoing, can carry out various distortion in the scope not departing from its purport and technological thought.Below, in order such variation is described.In addition, in variation, be marked with identical label to the part that above-mentioned execution mode is equal to, and suitably omit the description.
(1) situation of the radial direction length of protuberance and recess is increased
In the above-described embodiment, the protuberance 22 of groove 20 is roughly the same each other with the radial direction length of recess 21, and is the length of about 1/4 ~ 1/3 of the radial direction length of the side of the circumferencial direction of groove 20.Similarly, the recess 32 of rotor bar 30 is roughly the same each other with the radial direction length of protuberance 31, and is the length of about 1/4 ~ 1/3 of the radial direction length of the side of the circumferencial direction of rotor bar 30.But the recess 32 of the protuberance 22 of groove 20 and the radial direction length of recess 21 and rotor bar 30 and the radial direction length of protuberance 31 are not limited to above-mentioned length.
As shown in Figure 6, in this variation, the protuberance 22 of groove 20 is roughly the same each other with the radial direction length of recess 21, and be the length longer than above-mentioned execution mode (in this example, for the side of the circumferencial direction of groove 20 radial direction length about 1/2 ~ 2/3 length).Similarly, the recess 32 of rotor bar 30 is roughly the same each other with the radial direction length of protuberance 31, and be the length longer than above-mentioned execution mode (in this example, for the side of the circumferencial direction of rotor bar 30 radial direction length about 1/2 ~ 2/3 length).In this variation, also identically with above-mentioned execution mode, enough large electric current can be flow through to rotor bar 30, reliably can realize the large torque of electric rotating machine 1.
In addition, though be not particularly illustrated, the protuberance 22 of groove 20 and the radial direction length of recess 21, the recess 32 of rotor bar 30 and the radial direction length of protuberance 31 also can be the length shorter than above-mentioned execution mode, and roughly the same each other.Under these circumstances, also identically with above-mentioned execution mode, enough large electric current can be flow through to rotor bar 30, reliably can realize the large torque of electric rotating machine 1.
(2) protuberance is set in the side of the both sides of groove, and the situation of recess is set in the side of the both sides of rotor bar
In the above-described embodiment, the side of the side of groove 20 in the side of circumferencial direction both sides is provided with 1 protuberance 22, is provided with 1 recess 21 in the side of opposite side.Similarly, the side of the above-mentioned side of rotor bar 30 in the side of circumferencial direction both sides is provided with 1 recess 32 engaged with the protuberance 22 of above-mentioned groove 20, is provided with 1 protuberance 31 engaged with the recess 21 of above-mentioned groove 20 in the side of above-mentioned opposite side.
On the other hand, in this variation, as shown in Figure 7, groove 20 is respectively arranged with 1 protuberance 22,24 in the side of circumferencial direction both sides.Now, the radial direction length of the side protuberance 22,24 separately of above-mentioned both sides is roughly the same each other, but radial direction position (being radial direction middle position in detail) is different from each other.Be configured in this example: the protuberance 22 of the side on circumferencial direction side (in Fig. 7 right side) is close to radial direction side (in Fig. 7 downside) than above-mentioned Central Line 20C, the protuberance 24 of the side of circumferencial direction opposite side (in Fig. 7 left side) is close to radial direction opposite side (in Fig. 7 upside) than above-mentioned Central Line 20C.
On the other hand, rotor bar 30 is respectively arranged with 1 recess 32,34 engaged with the protuberance 22,24 of above-mentioned groove 20 in the side of circumferencial direction both sides.Now, the radial direction length of the side recess 32,34 separately of above-mentioned both sides is roughly the same each other, but radial direction position (being radial direction middle position in detail) is different from each other.Be configured in this example: the recess 32 of the side of above-mentioned circumferencial direction side is close to above-mentioned radial direction side than above-mentioned Central Line 30C, the recess 34 of the side of above-mentioned circumferencial direction opposite side is close to above-mentioned radial direction opposite side than above-mentioned Central Line 30C.
And inserted by rotor bar 30 under the state being configured at groove 20, the protuberance 22 of groove 20 and the recess 32 of rotor bar 30 engage in the side of above-mentioned side, and the protuberance 24 of groove 20 and the recess 34 of rotor bar 30 engage in the side of above-mentioned opposite side.Thus, the tooth 18 of rotor core 6 and the side respectively concavo-convex engaging of rotor bar 30 in above-mentioned both sides.
In described above variation, also identically with above-mentioned execution mode, enough large electric current can be flow through to rotor bar 30, reliably can realize the large torque of electric rotating machine 1.And, according to this variation, utilize the recess 32,24 of the side of the protuberance 22,24 of the side of the circumferencial direction both sides of groove 20 and the circumferencial direction both sides of rotor bar 30, tooth 18 and the side respectively concavo-convex engaging of rotor bar 30 in above-mentioned both sides of rotor core 6 can be made.Thus, by this concavo-convex engaging, the above-mentioned effect preventing rotor bar 30 from departing from can be obtained.
Further, in this variation, following effect can be obtained.That is, if arrange protuberance 22,24 respectively in the identical radial direction position of the circumferencial direction both sides of groove 20, then the length W of the circumferencial direction of described tooth 18 is large in the variation of this radial direction position.Therefore, in this variation, radial direction position different from each other on the side of the circumferencial direction both sides of groove 20 arranges protuberance 22,24 respectively.Thereby, it is possible to avoid above-mentioned variation as far as possible, make the length W of the circumferencial direction of above-mentioned tooth 18 impartial as far as possible along radial direction.Its result is, the area that magnetic flux can be made to flow through in tooth 18 is consistent as far as possible, thus makes magnetic flux density equalization.
(3) recess is set in the side of the both sides of groove, and the situation of protuberance is set in the side of the both sides of rotor bar
In this variation, as shown in Figure 8, groove 20 is respectively arranged with 1 recess 23,21 in the side of circumferencial direction both sides.Now, the radial direction length of the side recess 23,21 separately of above-mentioned both sides is roughly the same each other, but radial direction position (being radial direction middle position in detail) is different from each other.Be configured in this example: the recess 23 of the side on circumferencial direction side (in Fig. 8 right side) is close to radial direction side (in Fig. 8 downside) than above-mentioned Central Line 20C, the recess 21 of the side of circumferencial direction opposite side (in Fig. 8 left side) is close to radial direction opposite side (in Fig. 8 upside) than above-mentioned Central Line 20C.
On the other hand, rotor bar 30 is respectively arranged with 1 protuberance 33,31 engaged respectively with the recess 23,21 of above-mentioned groove 20 in the side of circumferencial direction both sides.Now, the radial direction length of the side protuberance 33,31 separately of above-mentioned both sides is roughly the same each other, but radial direction position (being radial direction middle position in detail) is different from each other.Be configured in this example: the protuberance 33 of the side of above-mentioned circumferencial direction side is close to above-mentioned radial direction side than above-mentioned Central Line 30C, the protuberance 31 of the side of above-mentioned circumferencial direction opposite side is close to above-mentioned radial direction opposite side than above-mentioned Central Line 30C.
And inserted by rotor bar 30 under the state being configured at groove 20, the recess 23 of groove 20 and the protuberance 33 of rotor bar 30 engage in the side of above-mentioned side, and the recess 21 of groove 20 and the protuberance 31 of rotor bar 30 engage in the side of above-mentioned opposite side.Thus, the tooth 18 of rotor core 6 and the side respectively concavo-convex engaging of rotor bar 30 in above-mentioned both sides.
According to described above variation, the effect identical with the variation of above-mentioned (2) can be obtained.
(4) other
In the above-described embodiment, the recess 32 of the protuberance 22 of groove 20 and recess 21, rotor bar 30 and protuberance 31 possess the side view of the entirety shown in Fig. 3 in roughly rectangular shape, but are not limited to this.Such as, the recess 32 of the protuberance 22 of groove 20 and recess 21, rotor bar 30 and protuberance 31 also can possess overall in the roughly side view such as square shape, roughly trapezoidal shape, general triangular shape, circular shape.
In addition, in above-mentioned execution mode, the recess 32 of rotor bar 30 and the side view of protuberance 31 possess roughly line part 32a, 31a of along the circumferential direction extending, but are not limited to this.Such as, the recess 32 of rotor bar 30 and the side view of protuberance 31 also can not possess the roughly line part along the circumferential direction extended.
In addition, in the above-described embodiment, the protuberance 22 of the groove 20 and radial direction length of recess 21 (recess 32 of rotor bar 30 and protuberance 31) is roughly the same each other and radial direction position is roughly the same each other, and, the protuberance 22 of groove 20 and recess 21 are configured to a part in the upper process of Central Line 20C (Central Line 30C), but are not limited to this.Such as, the protuberance 22 of groove 20 and the radial direction length of recess 21 (recess 32 of rotor bar 30 and protuberance 31) also can be different from each other and radial direction position also can be different from each other, further, the protuberance 22 of groove 20 and recess 21 also can be configured to a part and do not pass through Central Line 20C (Central Line 30C) is upper.
In addition, in the variation of above-mentioned (2), the radial direction length of the protuberance 22,24 (recess 32,34 of rotor bar 30) of groove 20 is roughly the same each other and radial direction position is different from each other, but is not limited to this.Such as, the radial direction length of the protuberance 22,24 (recess 32,34 of rotor bar 30) of groove 20 also can be different from each other, and radial direction position also can be roughly the same each other.Similarly, in the variation of above-mentioned (3), the radial direction length of the recess 23,21 (protuberance 33,31 of rotor bar 30) of groove 20 is roughly the same each other and radial direction position is different from each other, but is not limited to this.Such as, the radial direction length of the recess 23,21 (protuberance 33,31 of rotor bar 30) of groove 20 also can be different from each other, and radial direction position also can be roughly the same each other.
In addition, above, the situation being semi-open groove structure using the groove 20 of rotor core 6 is illustrated as an example, but is not limited to this.Such as, electric rotating machine also can be applied to the situation etc. that the groove 20 of rotor core 6 is the situation of so-called enclosed slot structure, the situation of so-called semienclosed slot or so-called opening groove structure.
In addition, above, be that the situation of inner-rotor type induction motor is illustrated as an example using electric rotating machine 1, but be not limited to this.Such as, also can be applied to electric rotating machine is the situation of rotor configuration in the outside of stator, so-called outer rotor type induction motor.Further, also can be applied to situation that electric rotating machine is motor beyond induction motor or be not motor but the situation of generator.
In addition, except having illustrated above, also can use appropriately combined for the technology of above-mentioned execution mode and each variation.
In addition, illustrate though do not illustrate one by one, above-mentioned execution mode and each variation can apply various change to implement in the scope not departing from its purport.
Claims (7)
1. an electric rotating machine, it has stators and rotators, and the feature of described electric rotating machine is,
Described rotor has:
Rotor core, it possesses groove; With
Rotor bar, it is configured at described groove,
Described groove and described rotor bar comprise 1 protuberance or 1 recess in the side of circumferencial direction both sides.
2. electric rotating machine according to claim 1, is characterized in that,
Described rotor core also possesses outer edge, and described outer edge along the circumferential direction extends, and described outer edge makes the part outside the radial direction of described groove expose and covers the position in addition of described groove.
3. electric rotating machine according to claim 2, is characterized in that,
The side of the side in the side of the described circumferencial direction both sides of described groove comprises described 1 protuberance, and the side of opposite side comprises described 1 recess,
The side of the described side in the side of the described circumferencial direction both sides of described rotor bar comprises described 1 recess, and the side of opposite side comprises described 1 protuberance.
4. electric rotating machine according to claim 3, is characterized in that,
The radial direction position of in described 1 protuberance of in the side of described side, described groove and the radial direction position of described 1 recess of described rotor bar and the side of described opposite side, described 1 recess of described groove and described 1 protuberance of described rotor bar, roughly the same each other.
5. electric rotating machine according to claim 2, is characterized in that,
The side of the circumferencial direction both sides of described groove comprises described 1 protuberance respectively, and the side of the circumferencial direction both sides of described rotor bar comprises described 1 recess respectively,
Or,
The side of the circumferencial direction both sides of described groove comprises described 1 recess respectively, and the side of the circumferencial direction both sides of described rotor bar comprises described 1 protuberance respectively.
6. electric rotating machine according to claim 5, is characterized in that,
Described groove, the radial direction position of the described protuberance of the side that is arranged at circumferencial direction both sides respectively or described recess is different from each other,
Described rotor bar, the radial direction position of the described recess of the side that is arranged at circumferencial direction both sides respectively or described protuberance is different from each other.
7., according to the electric rotating machine in claim 2 ~ 6 described in any one, it is characterized in that,
The side view of described protuberance or described recess possesses the roughly line part extended along described circumferencial direction.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013161254A JP2015033225A (en) | 2013-08-02 | 2013-08-02 | Rotating electrical machine |
| JP2013-161254 | 2013-08-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104348276A true CN104348276A (en) | 2015-02-11 |
Family
ID=52503305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410377004.1A Pending CN104348276A (en) | 2013-08-02 | 2014-08-01 | Rotating motor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2015033225A (en) |
| CN (1) | CN104348276A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59209049A (en) * | 1983-05-11 | 1984-11-27 | Mitsubishi Electric Corp | Die cast rotor |
| JPH07163106A (en) * | 1993-12-03 | 1995-06-23 | Hitachi Ltd | Rotor for induction motor |
| JPH08237919A (en) * | 1995-02-24 | 1996-09-13 | Fanuc Ltd | Cage rotor of induction motor |
| JP2524080Y2 (en) * | 1990-10-15 | 1997-01-29 | 株式会社明電舎 | Rotor iron plate of synchronous motor |
| JP2000341891A (en) * | 1999-05-27 | 2000-12-08 | Hitachi Ltd | Rotor of induction motor |
| JP2008278642A (en) * | 2007-04-27 | 2008-11-13 | Mitsubishi Electric Corp | Induction motor and its secondary conductor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6291540U (en) * | 1985-11-26 | 1987-06-11 | ||
| JP2005278372A (en) * | 2004-03-26 | 2005-10-06 | Jatco Ltd | Rotor for induction motor |
-
2013
- 2013-08-02 JP JP2013161254A patent/JP2015033225A/en active Pending
-
2014
- 2014-08-01 CN CN201410377004.1A patent/CN104348276A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59209049A (en) * | 1983-05-11 | 1984-11-27 | Mitsubishi Electric Corp | Die cast rotor |
| JP2524080Y2 (en) * | 1990-10-15 | 1997-01-29 | 株式会社明電舎 | Rotor iron plate of synchronous motor |
| JPH07163106A (en) * | 1993-12-03 | 1995-06-23 | Hitachi Ltd | Rotor for induction motor |
| JPH08237919A (en) * | 1995-02-24 | 1996-09-13 | Fanuc Ltd | Cage rotor of induction motor |
| JP2000341891A (en) * | 1999-05-27 | 2000-12-08 | Hitachi Ltd | Rotor of induction motor |
| JP2008278642A (en) * | 2007-04-27 | 2008-11-13 | Mitsubishi Electric Corp | Induction motor and its secondary conductor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015033225A (en) | 2015-02-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5394756B2 (en) | Permanent magnet type rotating electrical machine rotor | |
| JP5446406B2 (en) | Stator in electric machine | |
| EP2458714B1 (en) | Wedge for a stator of a generator with preformed coil windings | |
| JP5019451B2 (en) | Rotor | |
| WO2016047078A1 (en) | Permanent magnet type rotor and permanent magnet type synchronous rotary electric machine | |
| JP2008245336A (en) | Rotor, and permanent magnet type rotary electric machine | |
| US10153673B2 (en) | Production method for rotating electrical machine | |
| JP6469964B2 (en) | Permanent magnet rotating electric machine | |
| JP5248048B2 (en) | Rotating electric machine rotor and rotating electric machine | |
| JP5605721B2 (en) | Rotating electric machine | |
| CN203481946U (en) | Rotary motor and rotor | |
| JP2011030320A (en) | Dynamo-electric machine and method of manufacturing the same | |
| US8841812B2 (en) | Squirrel-cage induction motor | |
| JP2013220030A (en) | Permanent magnet type synchronous motor | |
| JP6076711B2 (en) | Squirrel-cage induction motor | |
| JP2008022646A (en) | Permanent-magnet motor, stator therefor, and stator manufacturing method | |
| JP6357859B2 (en) | Permanent magnet embedded rotary electric machine | |
| JP2010200573A (en) | Permanent magnet type synchronous motor | |
| WO2014155914A1 (en) | Dynamo-electric machine | |
| CN104348276A (en) | Rotating motor | |
| JP2016129447A (en) | Rotary electric machine | |
| JP6169496B2 (en) | Permanent magnet rotating electric machine | |
| KR101348636B1 (en) | Stator of transverse flux electric machine having multi-phase in circumferencial direction | |
| JP4926192B2 (en) | Electric motor stator | |
| JP5152957B2 (en) | Stator core and motor stator and motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150211 |