CN102208842B - Motor - Google Patents
Motor Download PDFInfo
- Publication number
- CN102208842B CN102208842B CN201110021673.1A CN201110021673A CN102208842B CN 102208842 B CN102208842 B CN 102208842B CN 201110021673 A CN201110021673 A CN 201110021673A CN 102208842 B CN102208842 B CN 102208842B
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- China
- Prior art keywords
- baffle plate
- stator
- motor
- rotor
- mentioned
- 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.)
- Expired - Fee Related
Links
- 239000004519 grease Substances 0.000 claims abstract description 50
- 230000001050 lubricating effect Effects 0.000 claims description 44
- 238000004804 winding Methods 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 15
- 238000005452 bending Methods 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 5
- 230000007935 neutral effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 7
- 239000011810 insulating material Substances 0.000 description 4
- 210000002445 nipple Anatomy 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000011218 segmentation Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 241000309551 Arthraxon hispidus Species 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Abstract
The invention provides a motor structure which provides a simpler structure and method for arranging connecting lines in an external-rotor motor and makes the motor lightweight. The arrangement space for the connecting lines is ensured by extending a baffle plate towards the central direction, and arranging the connecting lines at the extended part to make the motor lighter. Grease leaked out from an oil seal can be prevent from entering into the interior of the motor. Moreover, the shape of the baffle plate is designed such that the baffle plate is effective in production management and can prevent damage of the connecting lines.
Description
Technical field
The present invention relates to motor.
Background technology
As the setting of existing connecting line and the neutral line, be generally the end face being attached to stator winding, and the method be wound around together with stator winding.In addition, in patent documentation 1 (Japanese Unexamined Patent Publication: 11-89152 publication), disclose following structure: multiple notch is set at the peripheral part in stator yoke portion, be fixedly connected with line portion and stator by notch by insulated wire.In addition, also disclose following method: multiple groove and multiple lead are set on the insulating cover of covering stator iron core in patent documentation 2 (WO2007/138923), by making the wiring path of connecting line be separated with distance in the axial direction, thus guarantee the insulation distance between stator winding and connecting line.
But, in the prior art described in above-mentioned patent documentation 1 and patent documentation 2, owing to arranging connecting line and be fixedly connected with the component of line on the end face of stator winding, therefore, the thickness of the axis of motor adds the thickness of the component being equivalent to connecting line and being fixedly connected with line.
In recent years, more and more significant to the requirement of the slimming of motor.Such as, in the motor on elevator hoist, when not arranging the elevator of Machine Room, owing to needing to arrange whole lift facilities in elevating road, therefore, hoist engine must be set in the gap of car and lifting channel wall, thus the motor slimming that requirement is assembled on hoist engine.
For not only guaranteeing the torque of motor but also realizing slimming, outer rotor type motor is adopted to be strong.Because outer rotor type motor can make the position of opening move to more lateral, therefore, it is possible to guarantee aperture area, thus the torque of expectation can be obtained.In addition, owing to making stator self thinning simultaneously, therefore, stator winding use the little concentratred winding of coil-end be also strong.
In prior art before, because be the structure of the component arranging connecting line and be fixedly connected with line on the end (motor rotation axis direction) of stator winding, therefore, even if use external rotor and concentratred winding to realize above-mentioned slimming, in the connecting line configuration following prior art, be also difficult to realize the slimming of motor.
Summary of the invention
Therefore, the object of the invention is at outer-rotor type and in concentratred winding formula motor, realize the slimming of motor.
Above-mentioned purpose realizes by adopting the motor of following structure: be outer-rotor type Permanent Magnet motor, there is the concentratred winding formula stator strengthened by baffle plate, this baffle plate extends on the internal diameter direction of this stator, and the prolongation of this baffle plate arranges connecting line and the center line of each phase coil connecting this stator.Namely, the invention is characterized in, possessing concentratred winding mode stator and be arranged in this stator outer circumferential side and there is the outer rotor type motor of the rotor of permanent magnet, a side of said stator is provided with the baffle plate extended on internal diameter direction, this baffle plate is provided with connecting line and the neutral line of the coil of each phase connecting said stator.
In the structure of the invention described above, preferred mode is as described below.
(1) outer-rotor type rotor is configured to the cylinder that half opens wide shape, fixation side frame is provided with and supports above-mentioned rotor and make the rotating shaft that above-mentioned rotor rotates, there is bearing that this rotating shaft and above-mentioned rotor are slided and the oil sealing for the lubricating grease leakage to fixation side that prevent this bearing, configuring above-mentioned baffle plate than direction, this oil sealing outer footpath, forming by the position near the bearing of these baffle plates, rotating shaft, fixation side frame, rotor the space roughly closed.
(2) said stator iron core is divided, and above-mentioned baffle plate is also as one man divided with stator core, the position that the above-mentioned baffle plate of bending is adjacent with other baffle plates in the circumferential.
(3) with regard to being positioned at the baffle plate of foot in above-mentioned divided multiple baffle plate, assemble in the mode that the central portion of baffle plate is roughly consistent with the foot of said stator.
(4) in fixation side frame, be provided with lubricating grease through hole, be above-mentionedly positioned at being positioned at bottom than above-mentioned lubricating grease through hole by the top of the end of the baffle plate of foot.
(5) above-mentioned motor unit is contained on Winch for elevator.
According to engine of the present invention, by arranging connecting line and the neutral line in the part of the prolongation baffle plate of stator, the height (thickness) with the outer surface height same degree of stator coil can be become.Thereby, it is possible to realize the slimming of motor body.
Accompanying drawing explanation
Fig. 1 is the sectional structure chart of the motor of one embodiment of the present of invention.
Fig. 2 is the details drawing near the connecting line of Fig. 1.
Fig. 3 is the baffle shapes of another embodiment of the present invention.
Fig. 4 is the cutaway view near the rotating shaft of one embodiment of the present of invention.
Fig. 5 is the direction view a of Fig. 1.
Fig. 6 is the outside drawing of one embodiment of the present of invention.
In figure:
1-stator core, 2-insulating material, 3-stator winding, 4-frame, the aperture surface of 4a-frame 4, 5-rotating shaft, 6-rotor core, 7-permanent magnet, 8-drum, 9-bearing, 10-baffle plate, 10a-baffle shapes scheme, the divisional plane of 10b-baffle plate 10, 11-connecting line, 12-grease nipple, 13-first lubricating grease outlet, 14-oil sealing, 15-second lubricating grease outlet, 16-lubricating grease dump tank, the height of the point of intersection of 17-4a and 10b, the height of the upper surface of 18-second lubricating grease outlet 15, the upper level of 19-second lubricating grease outlet 15, the height of the position of the bottom of 20-4a, 21-covers, 22-bolt, 23-wire rope block, a-direction view, the axial height of b-stator winding 3 or insulating material 2, the axial height of c-connecting line 11, F
1~ F
5the path of-lubricating grease
Embodiment
Fig. 1 ~ Fig. 6 is the figure of the execution mode representing motor of the present invention.
Fig. 1 represents the sectional structure chart of the motor of one embodiment of the present of invention.In FIG, the T joint head (position identical with stator core 1) be located in stator core 1 is covered by insulating material 2, stator winding 3 wraps around insulation 2 and form so-called concentratred winding formula coil.In addition, the aperture surface of stator core 1 is fixed in frame 4 by bolt 22, and in addition, rotating shaft 5 is waited by press-in and is fixed on the aperture surface of frame 4.
The motor of present embodiment is particularly suitable for elevator hoist, as described later, is outer-rotor type, and rotating shaft 5 is also positioned at internal side diameter than stator core 1 and is fixed in frame 4.
Stator core 1 can be the stacked steel plate do not split in the circumferential, but in the present embodiment, in order to improve materials'use rate, adopting and being divided into multiple stacked steel plate (segmentation is unshakable in one's determination) in the circumferential.
Rotor core 6 be configured in than stator core 1 external diameter also in the outer part, be circumferentially fixed with multiple permanent magnet 7 at the inner surface of rotor core 6.These permanent magnets 7 are S pole and N pole permanent magnet, and S pole permanent magnet and N pole permanent magnet alternately arrange on the inner surface of rotor core 6, the S pole permanent magnet of arrangement and N pole permanent magnet add up to electromotor series.
The outer surface of rotor core 6 is by the not shown inner peripheral surface being bolted to drum 8.This drum 8 is configured to the shape connecting cylinder and the less cylinder opened wide side, and the inner peripheral surface of the cylinder opened wide is provided with above-mentioned rotor core 6.By this structure, rotor core 6 is relative with the outer circumferential side of stator core 1 and configure.The outer peripheral face of small column is provided with the wire rope block 23 of suspension cord.The most inner circumferential of this drum 8 is rotatably supported on rotating shaft 5 by bearing 9.So, in this embodiment, motor is configured for a part for the hoist engine of elevator.
The face relative with drum 8 of stator core 1 is suppressed on axial length direction by baffle plate (working as plate) 10.Baffle plate 10 extends to the inner peripheral surface more inner circumferential side direction than stator core 1.The position towards bearing 9 of drum 8 extends frame 4 direction (left direction in Fig. 1) is upper, than the inner peripheral surface front end of baffle plate 10 closer to frame 4.
Connecting line 11 is configured on the position of baffle plate 10 prolongation.This connecting line 11 is configured in than stator winding 3 more by internal side diameter.
Bearing 9 grease nipple 12, first lubricating grease outlet 13 is located on rotating shaft 5, and becoming can the structure of supplemental lubrication fat.In addition, the second lubricating grease outlet 15 is located in rotating shaft 5 or frame 4.Further, oil sealing 14 is located between rotating shaft 5 and drum 8.Oil sealing 14 is arranged in the mode preventing lubricating grease and invade in the space roughly surrounded by frame 4 and baffle plate 10.Namely, in the present embodiment, be configured to: be formed with the runner connecting grease nipple 12, bearing 9, first lubricating grease outlet 13 or the second lubricating grease outlet, oil sealing 14 be set and invade (detailed construction is aftermentioned) to avoid the lubricating grease of lubricating bearings 9 to unshakable in one's determination and coil sides.
In addition, the motor of present embodiment possesses cover 21 to protect connecting line 11.This cover 21 is fixed in baffle plate 10 or stator core 1, thus covers the connecting line 11 be connected with the coil of stator.In addition, this cover 21 only can cover ratio bearing 9 connecting line 11 more on the lower that lubricating grease easily invades, and in addition, also can cover the complete cycle of connecting line 11.
In the present embodiment, because connecting line 11 is configured in the internal side diameter of coil 3, the thickness and the drum 8 that are connecting line 11 and cover 21 are close, and therefore, its close degree does not rely on the width of coil 3, thus can realize the slimming of motor and hoist engine.
In addition, owing to being provided with the space roughly closed by baffle plate 10, frame 4 and rotating shaft 5, therefore, even if at the lubricating grease closed by oil sealing 14 just in case when leaking, lubricating grease also rests in this space, on the coil that can not be splashed to motor and connecting line.
Baffle plate 10 can be a undivided plate in the circumferential, also can as one man split baffle plate 10 with the segmentation of stator core 1.In this case, even if when producing the difference on ulking thickness in adjacent stacked steel plate, also installation torque can be remained necessarily, thus have can the effect of reliably fixed iron core.
Fig. 2 represents the details drawing near the connecting line of Fig. 1.As shown in Figure 2, connecting line 11 is arranged in the following manner: take baffle plate as benchmark, and in stator winding 3 or the axial height b of insulating material 2 and the axial height c of connecting line 11, the relation of b >=c is set up.
If meet the relation of above-mentioned b and c, compared with existing connecting line set-up mode, the slimming of motor can be realized.Especially the slimming of motor can not be hindered because of the existence of connecting line 11.In addition, owing to making connecting line 11 independent and configure from coil 3, therefore dispel the heat and also become good.Further, by the component using thermal diffusivity high on baffle plate 10, can further improve thermal diffusivity.
Fig. 3 represents another execution mode of baffle plate 10.In figure 3, the baffle plate 10a with bending part is set.The part to frame 4 side bending is represented in figure.That is, baffle plate 10a is identical with stator core, is configured to divided structure in the circumferential, and both ends are to frame 4 side bending.
Due to by bending, when therefore producing poor on the ulking thickness of adjacent stator core 1, the folding surface due to baffle plate 10a is only apparent in and is differed from by this ulking thickness and the step part produced, therefore, it is possible to prevent the damage to connecting line 11.Arrange R particularly by folding surface, edge part is not apparent in the side at connecting line place, thus can improve reliability.Further, by bending, the rigidity of baffle plate self can be improved.
Fig. 4 represents the cutaway view near the rotating shaft of execution mode.F in Fig. 4
1~ F
5represent the intrusion path of lubricating grease when lubricating grease leaks from oil sealing 14.The lubricating grease injected by grease nipple 12 passes through F
1supplement to bearing 9, unnecessary lubricating grease passes through F
2discharged by the first lubricating grease outlet 13.
In addition, be configured to: oil sealing 14 is set between rotating shaft 5 and drum 8 and invades motor interior to prevent the lubricating grease leaked from bearing 9.In addition, as F
3~ F
4shown in, even if when lubricating grease passes through oil sealing 14, invade midway, path by the lubricating grease from oil sealing 14 to baffle plate 10 and lubricating grease dump tank 16 is set, can prevent the wall along drum 8 from invading, and, by arranging the second lubricating grease outlet 15 of Fig. 1 in frame 4, the lubricating grease leaked from oil sealing 14 can be discharged.
In addition, because drum 8 is rotors, therefore, when drive motor, as the F of Fig. 4
5shown in, even if when lubricating grease splashes due to centrifugal force, by extending baffle plate 10, there is screen effect, thus can prevent lubricating grease from invading to stator and rotor portion.In addition, the position of the second lubricating grease outlet 15 is not limited to the position shown in Fig. 1, as long as the position lower than lubricating grease dump tank 16.
Fig. 5 represents a direction view of Fig. 1.When baffle plate 10 be the situation of segmenting structure, lubricating grease leak from oil sealing, there is lubricating grease from the possibility invading motor interior between divided baffle plate 10, but by the inner surface position of the segmentation angle that suitably to arrange baffle plate 10 and split position, the second lubricating grease outlet 15, frame 4, can prevent from invading.In Figure 5, in divided multiple baffle plate 10, the height at the intersection point position of the aperture surface 4a of the divisional plane 10b and frame 4 that are positioned at the baffle plate 10 of bottom is set to 17, the upper level of the second lubricating grease outlet 15 is set to 18, the lower surface height of the second lubricating grease outlet 15 is set to 19, the height of the bottom position of the aperture surface 4a of frame 4 is set to 20.
As shown in Figure 5,18 to 17 low by making, and make 19 to 20 high, thus before lubricating grease reaches height more than 17 and invades motor interior, can discharge from the second lubricating grease outlet 15, can prevent lubricating grease from invading between divided baffle plate 10.
Fig. 6 represents the outside drawing of one embodiment of the present of invention.The baffle plate 10 of Fig. 6 is circumferentially being split into multiple shapes, different from the bending position of baffle plate 10a shown in figure 3, is the shape of bending internal side diameter.
By baffle plate 10 being set to the baffle shapes of Fig. 6, there is the effect that can improve rigidity.In addition, baffle plate 10 is not limited to the baffle shapes shown in Fig. 6, also can increase bending part.
The present invention with the structure being assembled in the motor on the Winch for elevator particularly can expecting slimming effect for execution mode represents, even but other products, to needing the motor of slimming to be suitable for similarly, and identical effect can be obtained.
The effect entered about preventing lubricating grease, even other products, to there being the motor of identical requirement to be suitable for similarly, can obtain identical effect certainly.
Claims (5)
1. a motor, be possess concentratred winding mode stator and be positioned at than this stator outer circumferential side side and there is the outer rotor type motor of the rotor of permanent magnet, it is characterized in that,
The face of the side of said stator iron core is provided with the baffle plate extended on internal diameter direction, this baffle plate is provided with connecting line and the neutral line of each phase coil connecting said stator; And
Baffle plate extends to the inner peripheral surface more inner circumferential side direction than stator core, and connecting line is configured in than stator more by internal side diameter;
Outer-rotor type rotor is configured to the cylinder that half opens wide shape, fixation side frame is provided with and supports above-mentioned rotor and make the rotating shaft that above-mentioned rotor rotates, there is bearing that this rotating shaft and above-mentioned rotor are slided and the oil sealing for the lubricating grease leakage to fixation side that prevent this bearing, above-mentioned baffle plate is being configured than direction, this oil sealing outer footpath, the position towards bearing of cylinder extends on fixation side frame direction, than the inner peripheral surface front end of baffle plate closer to fixation side frame;
The space roughly closed is formed by the position near the bearing of these baffle plates, rotating shaft, fixation side frame, rotor.
2. motor according to claim 1, is characterized in that,
Said stator iron core is divided, and above-mentioned baffle plate is also as one man divided with stator core,
The position that the above-mentioned baffle plate of bending is adjacent with other baffle plates in the circumferential.
3. motor according to claim 2, is characterized in that,
The baffle plate being positioned at foot in above-mentioned divided multiple baffle plate is assembled in the mode that the central portion of baffle plate is roughly consistent with the foot of said stator.
4. motor according to claim 3, is characterized in that,
Fixation side frame is provided with lubricating grease through hole, is above-mentionedly positioned at being positioned at bottom than above-mentioned lubricating grease through hole by the top of the end of the baffle plate of foot.
5. a motor, is characterized in that,
Motor unit described in any one of Claims 1 to 4 is contained on Winch for elevator.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-080115 | 2010-03-31 | ||
| JP2010080115A JP5564306B2 (en) | 2010-03-31 | 2010-03-31 | Electric motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102208842A CN102208842A (en) | 2011-10-05 |
| CN102208842B true CN102208842B (en) | 2015-01-28 |
Family
ID=44697542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110021673.1A Expired - Fee Related CN102208842B (en) | 2010-03-31 | 2011-01-14 | Motor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5564306B2 (en) |
| CN (1) | CN102208842B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5852513B2 (en) * | 2012-06-12 | 2016-02-03 | 株式会社日立産機システム | motor |
| JP5969409B2 (en) * | 2013-02-08 | 2016-08-17 | 株式会社日立製作所 | Rotating motor and elevator hoisting machine |
| JP5660402B2 (en) * | 2013-02-15 | 2015-01-28 | 株式会社安川電機 | Rotating electric machine |
| CN104410220A (en) * | 2014-12-09 | 2015-03-11 | 东莞市智赢传动科技有限公司 | Mounting method for linear motor stator magnets |
| JP6877242B2 (en) * | 2017-05-29 | 2021-05-26 | 三菱電機株式会社 | Stator of rotary electric machine and its manufacturing method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2847669Y (en) * | 2005-11-05 | 2006-12-13 | 深圳市仓兴达科技有限公司 | Permanent magnet DC brushless motor with sensor |
| CN101075771A (en) * | 2007-04-13 | 2007-11-21 | 华中科技大学 | Permanent-magnetic motor with transverse magnetic field |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58150352U (en) * | 1982-04-01 | 1983-10-08 | 株式会社三協精機製作所 | small electric motor |
| JPH04317534A (en) * | 1991-04-12 | 1992-11-09 | Mitsubishi Electric Corp | Brushless motor |
| JP2530011Y2 (en) * | 1991-05-30 | 1997-03-26 | 本田技研工業株式会社 | Outer rotor type generator |
| JPH09285056A (en) * | 1996-04-08 | 1997-10-31 | Toshiba Corp | Motor |
| JP2001086691A (en) * | 1999-09-14 | 2001-03-30 | Nippon Densan Corp | Spindle motor |
| JP2005073382A (en) * | 2003-08-25 | 2005-03-17 | Nissan Motor Co Ltd | Motor driving unit |
| WO2005109605A1 (en) * | 2004-05-06 | 2005-11-17 | Harmonic Drive Systems Inc. | Split core stator and concentrated winding motor |
| JP5150930B2 (en) * | 2007-11-07 | 2013-02-27 | 本田技研工業株式会社 | Outer rotor type multi-pole generator |
-
2010
- 2010-03-31 JP JP2010080115A patent/JP5564306B2/en not_active Expired - Fee Related
-
2011
- 2011-01-14 CN CN201110021673.1A patent/CN102208842B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2847669Y (en) * | 2005-11-05 | 2006-12-13 | 深圳市仓兴达科技有限公司 | Permanent magnet DC brushless motor with sensor |
| CN101075771A (en) * | 2007-04-13 | 2007-11-21 | 华中科技大学 | Permanent-magnetic motor with transverse magnetic field |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平9-285056A 1997.10.31 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5564306B2 (en) | 2014-07-30 |
| JP2011217425A (en) | 2011-10-27 |
| CN102208842A (en) | 2011-10-05 |
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