CN201999165U - Electric hub unit - Google Patents
Electric hub unit Download PDFInfo
- Publication number
- CN201999165U CN201999165U CN2011200374317U CN201120037431U CN201999165U CN 201999165 U CN201999165 U CN 201999165U CN 2011200374317 U CN2011200374317 U CN 2011200374317U CN 201120037431 U CN201120037431 U CN 201120037431U CN 201999165 U CN201999165 U CN 201999165U
- Authority
- CN
- China
- Prior art keywords
- mentioned
- wheel hub
- motor
- rotor
- reducing gear
- 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
- 239000000758 substrate Substances 0.000 claims description 27
- 230000004888 barrier function Effects 0.000 claims 2
- 239000000314 lubricant Substances 0.000 abstract description 5
- 238000005192 partition Methods 0.000 abstract 3
- 239000000843 powder Substances 0.000 abstract 3
- 241001661918 Bartonia Species 0.000 abstract 1
- 206010064024 Intestinal malrotation Diseases 0.000 description 6
- 238000013459 approach Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Retarders (AREA)
Abstract
The utility model provides an electric hub unit. In an electric hub unit body (1), a planetary gear mechanism (6) is separated from a rotor (14) and a stator (13) in a motor (3), a circular-plate-shaped partition board (36) which is perpendicular to an axis (L) is used as another part to be disposed in a motor shell (10), and the partition board (36) is fixed to a free end of a shaft (26) of a planetary gear (23) via a screw stem (37). Even if grinding powder, which is generated in the planetary gear mechanism (6), of gears (21, 22 and 23) and lubricant coated on the planetary gear mechanism (6) are scattered together, the grinding powder is difficult to be attached onto the rotor (14) and the stator (13) due to the partition board (36), and the motor (3) can be prevented from rotating poorly due to clamping of the grinding powder. Additionally, the planetary gear mechanism (6) is arranged in an opening (10a) of the motor shell (10), accordingly the length of the axis (L) relative to a hub (4), namely, the width of a vehicle, can be shortened, and the hub (4) is thinned.
Description
Technical field
The present invention relates to a kind of electric wheel hub unit that is used in the battery-driven car (for example, Electrical Bicycle, electric assisted bicycle, walking assisting wheel etc.).
Background technology
In the past, about the technology in this kind field, TOHKEMY 2002-362467 communique was arranged.The electric wheel hub unit of being put down in writing in this communique comprises: the motor case of taking in coil and magnet, is the wheel hub that the center is rotated in motor on every side with the axletree, be conveyed to the sun and planet gear of wheel hub after the output of motor is slowed down, and control is to the alive circuit substrate of coil.And sun and planet gear is accommodated in the motor case, and circuit substrate is fixed in the outer wall of motor case.
[prior art document]
[patent documentation]
[patent documentation 1] TOHKEMY 2002-362467 communique
[patent documentation 2] TOHKEMY 2000-53068 communique
Yet in the above-mentioned electric wheel hub unit in the past, if the abrasive power and the lubricant of the gear that is produced in the sun and planet gear disperse in the lump, abrasive power is attached to coil and magnet easily, with this, has the problem of the malrotation that causes motor easily.Again, the circuit substrate of the electric wheel hub unit that is disclosed in the TOHKEMY 2000-53068 communique has been contained in the shell of motor, therefore the abrasive power of gear can not be attached to circuit substrate, but in this kind formation, electronic component on the circuit substrate is subjected to the influence by the heat of coil generation easily, shorten the life-span of electronic component, perhaps make electronic component that the mistake start takes place, become the reason of the malrotation of motor.
Summary of the invention
The object of the present invention is to provide a kind of electric wheel hub unit that can avoid the malrotation of motor part.
Electric wheel hub of the present invention unit in the axis with axletree is the wheel hub that is rotated of center, is built-in with motor part, and its technical essential is:
In wheel hub, comprise:
Motor part, it has taken in rotor and stator in motor shell;
Reducing gear portion is conveyed to wheel hub after its rotational delay with rotor; And
Circuit substrate, its rotation to rotor is controlled, and
End on the axis direction of motor shell, be formed with the axis is the peristome of the ring-type at center, in peristome, dispose reducing gear portion, between the other end on the axis direction of motor shell and wheel hub, dispose circuit substrate, in motor shell, dispose the dividing plate that the rotor in reducing gear portion and the motor part and stator are separated.
In this electric wheel hub unit, by motor shell reducing gear portion is separated with circuit substrate, and by dividing plate with the rotor of reducing gear portion and motor part and divided stator from.Again, because of in the peristome of motor shell, disposing reducing gear portion, so can be about wheel hub, shortening axis direction is the length of vehicle-width direction, can make the wheel hub slimming.In order to reach this slimming, reducing gear portion is disposed in the motor shell, the result, the rotor and the stator of reducing gear portion and motor part are approaching, rotor and stator are subjected to the influence of the abrasive power of gear easily, even if but the abrasive power of the gear that is produced in the reducing gear portion and lubricant disperse in the lump, pass through dividing plate, abrasive power also is difficult to be attached to rotor and stator, can avoid the malrotation of motor part.And then, because of circuit substrate away from the reducing gear portion that is disposed in the motor shell, and be disposed at motor shell outside, so the abrasive power of gear extremely difficulty adhere to.And, because of circuit substrate separates by motor shell and coil,, can prevent the life-span minimizing of the electronic component on the circuit substrate or the mistake start of electronic component so be difficult to directly be conveyed to circuit substrate by the over-all heat transfer motor shell of coil generation.
Again, be preferably reducing gear portion and comprise sun and planet gear, the rotation of the planetary wheel of reducing gear portion is installed on a end on the axis direction of wheel hub freely towards the interior side of wheel hub, to the outstanding axial region of axis direction, planetary wheel is disposed between the end and dividing plate of wheel hub, and dividing plate is fixed in the free end of axial region by screw rod.
The axial region of the rotation by effectively utilizing and support planetary gears outstanding from wheel hub can utilize screw rod to make dividing plate fixing simply.And if dividing plate is fixed in wheel hub, then when being installed on motor part in the wheel hub, planetary wheel can not fall, thereby assembling operation is good.When the in-to-in in the electric wheel hub unit decomposes cleaning, can easily dividing plate be unloaded by the employing of screw rod, thereby easily lubricant is injected into sun and planet gear again.
According to the present invention, can avoid the malrotation of motor part.
Description of drawings
Fig. 1 is the section-drawing of an example of expression electric wheel hub of the present invention unit.
Fig. 2 is the decomposing section of electric wheel hub unit shown in Figure 1.
Fig. 3 is the birds-eye view of expression sun and planet gear and dividing plate.
Fig. 4 is the lateral plan of an example of expression electric assisted bicycle.
The main element nomenclature
1: the electric wheel hub unit
2: axletree
3: motor part
4: wheel hub
6: reducing gear portion (sun and planet gear)
7: circuit substrate
10: motor shell
10a: peristome
13: stator
14: rotor
23: planetary wheel
26: axial region
36: dividing plate
37: screw rod
The specific embodiment
Below, with reference to graphic one side preferable example to of the present invention electric wheel hub unit be elaborated on one side.
As Fig. 1, Fig. 2, and shown in Figure 4, electric wheel hub unit 1 is used for the wheel W of Electrical Bicycle, electric assisted bicycle, battery-operated motor cycle, electronlmobil etc.This electric wheel hub unit 1 comprises that following each one is as main constituent part: for the centre of gration of wheel W promptly be fixed in the axletree 2 of framework F, motor part 3 that axletree 2 is connected, with axletree 2 be the wheel hub 4 that is rotated of center, the output that makes motor part 3 is conveyed to the reducing gear portion 6 of wheel hub 4 after slowing down, circuit substrate 7 that motor part 3 is controlled and rotate the pair of right and left bearing portion 30,31 of supporting wheel hub 4 freely with respect to axletree 2.And, in wheel hub 4, take in motor part 3, reducing gear portion 6, reached circuit substrate 7.
It is open and the other end is fixed with the motor shell 10 of axletree 2 that motor part 3 has a end on the axis L direction of axletree 2, and around motor shell 10, therefore wheel hub 4 rotations make the periphery wall 10b of motor shell 10 leave wheel hub 4.In this motor shell 10, be included in the stator 13 that coiling coil 12 forms on the core 11, and with respect to stator 13 rotor rotated 14.Stator 13 seals by the mold M1 of resin, rotor 14 comprises: be positioned at the magnet cylindraceous 16 than stator 13 inboards, even and if Jie is loaded between magnet 16 and the axletree 2 and motor part 3 is pinned the slide control mechanism 17 that also can carry out the rotation of wheel hub 4 electrically.
End on the axis L of motor shell 10 direction, being formed with axis L is the peristome 10a of the ring-type at center.This peristome 10a strides and the flat end of motor shell 10 roughly all and forming, and disposes the sun and planet gear 6 as reducing gear portion in peristome 10a.
Sun and planet gear 6 comprises: sun gear 21, and it constitutes as the part of rotor 14 and in the rotation around axletree 2 of the position of peristome 10a; Inner gear 22, its position in peristome 10a is formed at the end of the periphery wall 10b of motor shell 10; And four planetary wheels 23, its axle bearing such as grade is in bringing into play the wheel hub 4 of function as carrier, and is disposed between sun gear 21 and the inner gear 22, and with sun gear 21 and inner gear 22 engagements (with reference to Fig. 3).And each planetary wheel 23 rotates the end that is installed on freely on the axis L of the wheel hub 4 direction interior side towards wheel hub 4 via bearing 27, to the outstanding axial region 26 of axis L direction.
In this kind sun and planet gear 6, sun gear 21 rotates in the lump with rotor 14, and planetary wheel 23 revolution rotate with this wheel hub 4 around sun gear 21, are conveyed to wheel hub 4 after the rotational delay of rotor 14.And, because of sun and planet gear 6 is flat partially,, help the slimming of wheel hub 4 so can dispose in the mode of blocking peristome 10a.
The wheel hub 4 of drum type comprises the 4A of hub body portion, and the cap 4B that the open end 4a osed top of the 4A of hub body portion is flat partially of cup-shaped shape.In making under the flange portion 4e that is formed at the 4A of hub body portion and the state that the flange portion 4b that is formed at cap 4B docks, 4A of hub body portion and cap 4B is integrated by screw rod 28.And, be situated between in the intersection of 4A of hub body portion and cap 4B the caulking gum 29 of ring-type is housed.
And then, on axis L direction, at the outstanding hole 4c of the axletree of the end that is formed at the 4A of hub body portion, the clutch shaft bearing portion 30 that comprises antifriction-bearing box with respect to the rotation of axletree 2 in order to supporting wheel hub 4 is installed, at the outstanding hole 4d of the axletree of the end that is formed at cap 4B, the second bearing portion 31 that comprises antifriction-bearing box with respect to the rotation of axletree 2 in order to supporting wheel hub 4 is installed.And, in an end of axletree 2, be screwed the first nut portion 32 that keeps clutch shaft bearing portion 30, the foreign steamer 30a of clutch shaft bearing portion 30 is connected to the 4A of hub body portion of wheel hub 4, the interior 30b of wheel of clutch shaft bearing portion 30 is connected to the first nut portion 32, prevents coming off of clutch shaft bearing portion 30 with this.Similarly, in the other end of axletree 2, the foreign steamer 31a that is screwed 33, the second bearing portions 31 of the second nut portion of the second bearing portion 31 of maintenance is connected to the cap 4B of wheel hub 4, the interior 31b of wheel of the second bearing portion 31 is connected to the second nut portion 33, prevents coming off of the second bearing portion 31 with this.
Dispose discoideus circuit substrate 7 in the space that the end wall 10c and the second bearing portion 31 by cap 4B, motor shell 10 delimited, the circuit substrate 7 that electronic component is housed seals by the mold M2 of resin.In the central opening 7a of this circuit substrate 7, be inserted with end wall 10c from motor shell 10 along axletree 2 and outstanding jut 10d, circuit substrate 7 approaches the end wall 10c of motor shell 10 and configuration abreast.And wire joint connects the interior 31b of wheel of the second bearing portion 31 and is expelled to the outside in the distribution 34 of circuit substrate 7, and the distribution that is formed at the interior 31b of wheel of the second bearing portion 31 is extracted out in the hole 35 and is filled with leakproofing material 39.
In this electric wheel hub unit 1, in the mode that the rotor 14 in sun and planet gear (reducing gear portion) 6 and the motor part 3 and stator 13 are separated, discoideus dividing plate 36 with respect to axis L arranged perpendicular is disposed in the motor shell 10 as another part, this dividing plate 36 is connected to the free end of the axial region 26 of support planetary gears 23, and fixes by being screwed in the screw rod 37 of the internal thread part 26a of axial region 26.In Fig. 3, the axial region 26 in 4 positions all is screwed screw rod 37 so that dividing plate 36 is fixing, as long as but can prevent coming off of bearing 27, then need not all axial regions 26 and the butt position of dividing plate 36 are fixed.The outer circumference end of dividing plate 36 approaches the periphery wall 10b of motor shell 10, and axletree 2 runs through the 36a of central opening portion of dividing plate 36, and makes sun gear 21 outstanding from the 36a of central opening portion.Again, screw rod 37 is for locking and be inserted into dividing plate 36 across packing ring 38.
By this dividing plate 36, rotor 14 and stator 13 in reducing gear portion 6 and the motor part 3 are separated, and reducing gear portion 6 is separated with circuit substrate 7 by motor shell 10.Again, because of in the peristome 10a of motor shell 10, disposing reducing gear portion 6, so can be about wheel hub 4, shortening axis L direction is the length of vehicle-width direction, can make wheel hub 4 slimmings.
In order to reach this slimming, reducing gear portion 6 is disposed in the motor shell 10, the result, reducing gear portion 6 is approaching with rotor 14 and stator 13 in the motor part 3, rotor 14 and stator 13 are subjected to the influence of the abrasive power of gear 21,22,23 easily, even if but the abrasive power of the gear 21,22,23 that is produced in the reducing gear portion 6 disperses in the lump with the lubricant of coating reducing gear portion 6, by dividing plate 36, abrasive power also is difficult to be attached to rotor 14 and stator 13, can avoid the malrotation because of the caused motor part 3 of snapping in of abrasive power.And then, because of circuit substrate 7 away from the reducing gear portion 6 that is disposed in the motor shell 10, and be disposed at motor shell 10 outside, so the abrasive power of gear 21,22,23 extremely difficulty adhere to.And, because of circuit substrate 7 separates by motor shell 10 and coil 12, so be difficult to be conveyed to circuit substrate 7 by over-all heat transfer motor shell 10 that coil 12 produced, the life-span that can prevent the electronic component on the circuit substrate 7 reduces or the mistake start of electronic component.
And the axial region 26 of the rotation by effectively utilizing support planetary gears 23 can utilize screw rod 37 to make dividing plate 36 fixing simply.And if dividing plate 36 is fixed in wheel hub 4, then when be installed on motor part 3 in the wheel hub 4, planetary wheel 23 can not fall, so the operation when motor part 3 being assembled in the hub body 4A of wheel hub 4 can become good.When the in-to-in in electric wheel hub unit 1 decomposes cleaning, can easily dividing plate 36 be unloaded by the employing of screw rod 37 again.
The present invention we can say and is not limited to above-mentioned example.For example, dividing plate 36 also can be fixed in the free end of axial region 26 by welding or ca(u)lk etc.
Claims (2)
1. electric wheel hub unit, it is built-in with motor part in the axis with axletree is the wheel hub that is rotated of center, it is characterized in that:
In above-mentioned wheel hub, possess:
Said motor portion, it has taken in rotor and stator in motor shell;
Reducing gear portion is conveyed to above-mentioned wheel hub after its rotational delay with above-mentioned rotor; And
Circuit substrate, its rotation to above-mentioned rotor is controlled, and
End on the axis direction of said motor housing, be formed with above-mentioned axis is the peristome of the ring-type at center, in above-mentioned peristome, dispose above-mentioned reducing gear portion, between the other end on the above-mentioned axis direction of said motor housing and above-mentioned wheel hub, dispose the foregoing circuit substrate, in the said motor housing, dispose the dividing plate that the above-mentioned rotor in above-mentioned reducing gear portion and the said motor portion and said stator are separated.
2. electric wheel hub according to claim 1 unit is characterized in that,
Above-mentioned reducing gear portion comprises sun and planet gear, and the planetary wheel rotation of above-mentioned reducing gear portion is installed on a end on the axis direction of above-mentioned wheel hub freely towards the interior side of above-mentioned wheel hub, to the outstanding axial region of axis direction,
Above-mentioned planet gear arrangement is between an above-mentioned end and aforementioned barriers of above-mentioned wheel hub, and aforementioned barriers is fixed in the free end of above-mentioned axial region by screw rod.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-018408 | 2010-01-29 | ||
| JP2010018408A JP4932012B2 (en) | 2010-01-29 | 2010-01-29 | Electric hub unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201999165U true CN201999165U (en) | 2011-10-05 |
Family
ID=44407578
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200374317U Expired - Fee Related CN201999165U (en) | 2010-01-29 | 2011-01-28 | Electric hub unit |
| CN201110037351.6A Expired - Fee Related CN102139738B (en) | 2010-01-29 | 2011-01-28 | Electric wheel hub unit |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110037351.6A Expired - Fee Related CN102139738B (en) | 2010-01-29 | 2011-01-28 | Electric wheel hub unit |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4932012B2 (en) |
| CN (2) | CN201999165U (en) |
| TW (1) | TW201127693A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102139738A (en) * | 2010-01-29 | 2011-08-03 | 日本电产科宝株式会社 | Electric wheel hub unit |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103414288A (en) * | 2013-09-09 | 2013-11-27 | 苏州爱特朗电气驱动技术有限公司 | Integrated controller module in motor of electric vehicle |
| WO2015100630A1 (en) * | 2013-12-31 | 2015-07-09 | 中国科学院深圳先进技术研究院 | Hub driving device having planetary motor and wheel power system using same |
| DE102014007550A1 (en) | 2014-05-22 | 2015-11-26 | Audi Ag | Electric machine |
| CN106364622B (en) * | 2016-10-18 | 2022-05-24 | 无锡富乐力科技有限公司 | Integrated electric power assisting device for bicycle |
| CN109510390B (en) * | 2017-09-15 | 2021-07-09 | 日本电产株式会社 | Drive device |
| TWI647143B (en) * | 2017-12-28 | 2019-01-11 | Heat radiation structure of power wheel axle of electric locomotive | |
| DE102019209254A1 (en) * | 2018-06-28 | 2020-01-02 | Bosch Limited | HUB MOTOR ARRANGEMENT FOR A VEHICLE AND BEARING UNIT |
| CN109572331A (en) * | 2018-11-09 | 2019-04-05 | 双钱集团（江苏）轮胎有限公司 | A kind of wear-resisting type engineering machinery tire |
| IT202000020377A1 (en) | 2020-08-24 | 2022-02-24 | Campagnolo Srl | MOTORIZED BICYCLE WHEEL HUB ASSEMBLY |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000211574A (en) * | 1999-01-25 | 2000-08-02 | Yamaha Motor Co Ltd | Electric power assited bicycle |
| JP2002235833A (en) * | 2001-02-09 | 2002-08-23 | Yamaha Motor Co Ltd | Synthetic resin double-gear |
| JP4524536B2 (en) * | 2001-07-18 | 2010-08-18 | 日本精工株式会社 | Electric wheel drive device |
| JP2004067039A (en) * | 2002-08-09 | 2004-03-04 | Sanyo Electric Co Ltd | Hub motor unit |
| CN2734539Y (en) * | 2004-05-18 | 2005-10-19 | 上海大学 | Driving device used for electric bicycle |
| CN201051699Y (en) * | 2007-06-20 | 2008-04-23 | 苏州盛亿电机有限公司 | Electric wheel hub |
| JP2009012542A (en) * | 2007-07-03 | 2009-01-22 | Panasonic Corp | Electric hub device and motor-driven vehicle |
| JP4932012B2 (en) * | 2010-01-29 | 2012-05-16 | 日本電産コパル株式会社 | Electric hub unit |
-
2010
- 2010-01-29 JP JP2010018408A patent/JP4932012B2/en not_active Expired - Fee Related
-
2011
- 2011-01-28 CN CN2011200374317U patent/CN201999165U/en not_active Expired - Fee Related
- 2011-01-28 TW TW100103430A patent/TW201127693A/en unknown
- 2011-01-28 CN CN201110037351.6A patent/CN102139738B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102139738A (en) * | 2010-01-29 | 2011-08-03 | 日本电产科宝株式会社 | Electric wheel hub unit |
| CN102139738B (en) * | 2010-01-29 | 2015-04-22 | 日本电产科宝株式会社 | Electric wheel hub unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102139738B (en) | 2015-04-22 |
| JP4932012B2 (en) | 2012-05-16 |
| CN102139738A (en) | 2011-08-03 |
| TW201127693A (en) | 2011-08-16 |
| JP2011156911A (en) | 2011-08-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20200128 |