CN105071558A - Electric balancing vehicle, wheel and motor assembly - Google Patents
Electric balancing vehicle, wheel and motor assembly Download PDFInfo
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- CN105071558A CN105071558A CN201510502128.2A CN201510502128A CN105071558A CN 105071558 A CN105071558 A CN 105071558A CN 201510502128 A CN201510502128 A CN 201510502128A CN 105071558 A CN105071558 A CN 105071558A
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- machine assembly
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- inner ring
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Abstract
The invention discloses an electric balancing vehicle, a wheel and a motor assembly. The invention discloses a motor assembly, comprising a stator and a rotor arranged on the outside of the stator along the radial direction. The motor assembly is characterized in that the stator comprises an inner ring body and a winding body which is connected to the inner ring body for winding a coil; the axial size of the inner ring body is greater than the axial size of the winding body; the inner ring comprises a first split body and a second split body; the first split body is provided with a circular winding body installation surface for installing a winding body and a circular first bearing installation surface for installing the bearing; the diameter of the first bearing installation surface is greater than that of the winding body installation surface; the second split body is provided with a circular second bearing installation surface for installing the bearing; the winding body is fixedly installed on the winding body installation surface of the first split body; the second split body is fixedly connected to the first split body; the inner ring body forms a cavity, at least part of which axially goes through the motor assembly. As a result, the middle part of the motor assembly has no structure members, and thus the weight is reduced and the portability is enhanced.
Description
Technical field
The present invention relates to a kind of walking-replacing tool, particularly relate to a kind of electrodynamic balance car and wheel, electric machine assembly.
Background technology
Along with expanding economy, energy scarcity, vehicle emission pollution are day by day serious, city traffic congestion generally etc. many social concerns day by day manifest.In recent years, electric motor car, as the vehicles of a new generation, was more and more subject to the welcome of consumer, and in life, modal electric motor car is electric motor car with two wheels, arranged before and after its two wheel, similar bicycle.The general volume of this common electric motor car is comparatively large, and portability has much room for improvement.
Social development is maked rapid progress, and the step that people pursue good life does not become all the time, also more and more pursues novel and individual character to the R & D design of walking-replacing tool.A kind of portable and electrodynamic balance car flexibly of riding, because only have a wheel, so also someone is called electric unicycle, very popular since appearing on the market.This electrodynamic balance car is installed and is included gyrostatic control system, is controlled the operation of car body by the movement of bicyclist's center of gravity.Chinese patent is announced No. CN102717854A and is disclosed a kind of described electrodynamic balance car.Weight reduction and increase portability are the R&D direction of this kind of electrodynamic balance car all the time.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of electric machine assembly being conducive to weight reduction.
For solving the problems of the technologies described above, the invention provides following technical scheme: a kind of electric machine assembly, comprise stator and be arranged at the rotor of stator radial outside, described stator comprises inner ring body and is connected to the winding body in order to coil around the home on inner ring body, the axial dimension of described inner ring body is greater than the axial dimension of winding body, described inner ring body comprises the first split and the second split, first split is provided with installs the winding body installed surface of round shape of winding body and the clutch shaft bearing installed surface in order to bearings mounted round shape, and the diameter of clutch shaft bearing installed surface is greater than the diameter of winding body installed surface, second split is provided with the second bearing installed surface in order to bearings mounted round shape, winding body is fixedly installed on the winding body installed surface of the first split, second split is fixedly connected with the first split, and this inner ring body surrounds a cavity, and this cavity runs through electric machine assembly in the axial direction at least partly.
Further, the inwall of described winding body is provided with projection, this projection is provided with through hole, first split is provided with first lock hole relative with through hole, second split is provided with second lock hole relative with through hole, and winding body, the first split and the second split are fixedly connected with through the first lock hole, through hole, the second lock hole by locking piece.
Further, the inwall of described first split is convexly equipped with the first protuberance, and described first lock hole is opened on this first protuberance, and this first protuberance is provided with the depression of accommodating described projection; The inwall of described second split is convexly equipped with the second protuberance, and described second lock hole is opened on the second protuberance.
Further, described first split is provided with the first location division be positioned at inside clutch shaft bearing installed surface, and the second split is provided with the second location division be positioned at inside the second bearing installed surface, and described inner side refers near winding body side.
Further, electric machine assembly comprises the two bearings be installed on respectively on clutch shaft bearing installed surface and the second bearing installed surface.
Further, electric machine assembly comprises two back-up rings laid respectively at outside two bearings inner ring.
Further, electric machine assembly comprises and is connected to bearing outer ring and epitrochanterian two connection covers.
Further, described rotor comprises the steel ring arranging magnet and the wheel rim be connected on steel ring.
The present invention has following beneficial effect: the inwall of stator surrounds a cavity, and this cavity runs through electric machine assembly at least partly, so the middle part of electric machine assembly does not have structure member, thus can weight reduction, increase portability.
The present invention also provides a kind of electric machine assembly, comprise stator and rotor, described stator comprises inner ring body and is installed on the winding body on inner ring body, described inner ring body comprises winding body installation portion and lays respectively at clutch shaft bearing installation portion and second axle bearing mount portion of winding body installation portion both sides, and in the radial direction of electric machine assembly, the thickness of described winding body installation portion is less than the thickness of clutch shaft bearing installation portion, and this inner ring body surrounds a cavity, and this cavity runs through electric machine assembly in the axial direction at least partly.
Further, described inner ring body comprises the first split and the second split, and described winding body installation portion and clutch shaft bearing installation position are in the first split, and described second axle bearing mount portion is positioned in the second split.
Further, electric machine assembly comprises the two bearings be installed on respectively on clutch shaft bearing installation portion and the second axle bearing mount portion and two back-up rings laid respectively at outside two bearings inner ring.
Further, electric machine assembly comprises and is connected to bearing outer ring and epitrochanterian two connection covers.
Further, described rotor comprises the steel ring arranging magnet and the wheel rim be connected on steel ring.
The stator inner wall of this electric machine assembly surrounds a cavity, this at least partly this cavity run through this electric machine assembly, so the middle part of electric machine assembly does not have structure member, thus can weight reduction, increase portability.
The present invention also provides a kind of wheel and the electrodynamic balance car that use above-mentioned electric machine assembly.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of electrodynamic balance car wheel of the present invention.
The decomposed schematic diagram that Fig. 2 is wheel shown in Fig. 1.
The inner ring body that Fig. 3 is wheel shown in Fig. 1 and the decomposing schematic representation of part motor.
Fig. 4 is the cut-away illustration along the line of A-A shown in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing illustrated in greater detail embodiments of the present invention, embodiments of the invention are to explain explanation further to the present invention, but not limit protection scope of the present invention.
Refer to shown in Fig. 1, Fig. 2 and Fig. 3, the wheel of electrodynamic balance car of the present invention comprises electric machine assembly and is installed on the tire 1 on electric machine assembly.
Described electric machine assembly comprises stator 2, is arranged at the rotor 3 of stator 2 radial outside, pair of bearings 4, two connection cover 5 and two back-up rings 6.
Described stator 2 comprises winding body 21 in order to coil around the home and inner ring body 22.The axial dimension of inner ring body 22 is greater than the axial dimension of winding body 21, and therefore, bearing 4 can be installed in the both sides of inner ring body 22.The position of the installation winding body 21 of inner ring body 22 is called winding body installation portion, and bearings mounted position is called axle bearing mount portion.Inner ring body 22 comprises the first split 221 and the second split 222.The inwall of winding body 21 is provided with three projections 211, and each projection 211 is provided with through hole 212, and these through holes 212 are in order to fix inner ring body 22 and winding body 21 by locking pieces 7 such as stud, bolt or screws.The described quantity of protruding 211 can be selected as required, if winding body 21 size can select more quantity more greatly, if winding body 21 size is less can select less quantity.In the present embodiment, the quantity of protruding 211 is three.
The outer wall of the first split 221 is provided with the winding body installed surface 2211 of the round shape of installing described winding body 21 and the clutch shaft bearing installed surface 2212 in order to the round shape of installing bearing 4.Obviously, winding body installed surface 2211 is lateral surfaces diametrically of winding body installation portion, and clutch shaft bearing installed surface 2212 is lateral surfaces diametrically of clutch shaft bearing installation portion.The inwall of the first split 221 is provided with three the first protuberances 2213, each first protuberance 2213 is provided with one first lock hole 2214, described winding body installed surface 2211 is arranged with at each first protuberance 2213 place corresponding can the accommodating depression of protruding 211 2215, and the back side also can regarding the first protuberance 2213 as is provided with depression 2215.The quantity of the first protuberance 2213 is three is in order to equal with the quantity of three projections 211, and when the number change of protruding 211, the quantity of the first protuberance 2213 also makes equal number change.The inner side of clutch shaft bearing installed surface 2212 is provided with the first location division 2216 can keeping out bearing 4.Described inner side refers to the side near winding body installed surface 2211, namely near the side of winding body 21.
The second bearing installed surface 2221, second bearing installed surface 2221 that the outer wall of the second split 222 is provided with to install bearing 4 is lateral surfaces diametrically of the second axle bearing mount portion.The inner side of the second bearing installed surface 2221 is provided with the second location division 2222 can keeping out bearing 4.Described inner side refers to the side near winding body installed surface 2211, namely near the side of winding body 21.The inner ring of the second split 222 is provided with quantity second protuberance 2223 equal with the first protuberance 2213, and each second protuberance 2223 is provided with the second lock hole 2224.
Shown in Fig. 4, during assembling stator 2, winding body 21 is placed on winding body installed surface 2211 from the side of the first split 221, and makes protruding 211 to be placed in depression 2215 respectively, and through hole 212 is relative with the first lock hole 2214 simultaneously.Second split 222 is docked from the opposite side of winding body 21 with the first split 221, make each second protuberance 2223 relative with the first protuberance 2213, second lock hole 2224 is relative with through hole 212 and the first lock hole 2214 simultaneously, and the first split 221, second split 222 and winding body 21 are fixedly connected with through the first lock hole 2214, through hole 212 and the second lock hole 2224 by locking piece 7 successively.Bearing 4 is placed on clutch shaft bearing installed surface 2212 and the second bearing installed surface 2221 from the both sides of inner ring body 22 respectively, and the inner ring of two bearings 4 is resisted against on the first location division 2216 and the second location division 2222 respectively.Two back-up rings 6 are fixedly connected on the outside of the first split 221 and the second split 222 respectively, and two back-up rings 6 keep out the outside of two bearings 4 inner ring respectively.Two back-up rings 6 and the first location division 2222, location division 2216, second are respectively in the axially location two bearings 4 of electric machine assembly.The outer edge of the connection cover 5 of two annulars is fixedly connected with rotor 3 respectively, and inner edge portion is connected on the outer ring of bearing 4 respectively, and with the outer ring phase clamping of bearing 4 or be otherwise fixedly connected with.Therefore, can the rotating with rotor 3 outer ring of connection cover 5 and bearing 4.Obviously, connection cover 5 pairs of rotors 3 have positioning action in the axial direction.
Described rotor 3 comprises steel ring 31, be arranged at the magnet 32 on steel ring 31 and be arranged at the wheel rim 33 of steel ring 31 radial outside.Steel ring 31 and wheel rim 33 can shaping respectively after link together, also can steel ring 31 one-body molded with wheel rim 33.
Inner ring body 22 of the present invention is annular, so inner ring body 22 surrounds a cavity 20, this cavity 20 axially runs through electric machine assembly at electric machine assembly, namely electric machine assembly of the present invention is core motor assembly, in other words, be not provided with parts in the cavity of this electric machine assembly, be conducive to the weight alleviating electric machine assembly.And then the wheel to be assembled by this electric machine assembly can have lighter weight, finally, the electrodynamic balance car assembled by this wheel has preferably portability.
Further, the diameter of the bearing installed surface 2212,2221 of inner ring body 22 of the present invention is greater than the diameter of winding body installed surface 2211, and the diameter of a circle namely forming bearing installed surface is greater than the diameter of a circle forming winding body installed surface.From the cutting plane of Fig. 4, winding body installed surface 2211 is compared with the axle center of bearing installed surface 2212,2221 closer to wheel, and in other words, the middle part of inner ring body 22 is thin, and both sides are thick; That is diametrically, the thickness of winding body installation portion is less than the thickness of two bearings installation portion.So, under the prerequisite that winding body 21 size is certain, it is larger that the cavity 20 of inner ring body 22 can be arranged, and has further contribution to alleviating of weight.Further, inner ring body 22 is set to split type, is convenient to assembling.
Certainly, the above is the preferred embodiment of the present invention, should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (15)
1. an electric machine assembly, comprise stator and be arranged at the rotor of stator radial outside, it is characterized in that, described stator comprises inner ring body and is connected to the winding body in order to coil around the home on inner ring body, the axial dimension of described inner ring body is greater than the axial dimension of winding body, described inner ring body comprises the first split and the second split, first split is provided with installs the winding body installed surface of round shape of winding body and the clutch shaft bearing installed surface in order to bearings mounted round shape, and the diameter of clutch shaft bearing installed surface is greater than the diameter of winding body installed surface; Second split is provided with the second bearing installed surface in order to bearings mounted round shape; Winding body is fixedly installed on the winding body installed surface of the first split; Second split is fixedly connected with the first split, and this inner ring body surrounds a cavity, and this cavity runs through electric machine assembly in the axial direction at least partly.
2. electric machine assembly as claimed in claim 1, it is characterized in that, the inwall of described winding body is provided with projection, this projection is provided with through hole, first split is provided with first lock hole relative with through hole, second split is provided with second lock hole relative with through hole, and winding body, the first split and the second split are fixedly connected with through the first lock hole, through hole, the second lock hole by locking piece.
3. electric machine assembly as claimed in claim 2, it is characterized in that, the inwall of described first split is convexly equipped with the first protuberance, and described first lock hole is opened on this first protuberance, and this first protuberance is provided with the depression of accommodating described projection; The inwall of described second split is convexly equipped with the second protuberance, and described second lock hole is opened on the second protuberance.
4. electric machine assembly as claimed in claim 1, it is characterized in that, described first split is provided with the first location division be positioned at inside clutch shaft bearing installed surface, and the second split is provided with the second location division be positioned at inside the second bearing installed surface, and described inner side refers near winding body side.
5. electric machine assembly as claimed in claim 4, it is characterized in that, electric machine assembly comprises the two bearings be installed on respectively on clutch shaft bearing installed surface and the second bearing installed surface.
6. electric machine assembly as claimed in claim 5, it is characterized in that, electric machine assembly comprises two back-up rings laid respectively at outside two bearings inner ring.
7. electric machine assembly as claimed in claim 6, is characterized in that, electric machine assembly comprises and is connected to bearing outer ring and epitrochanterian two connection covers.
8. the electric machine assembly as described in any one of claim 1 to 7, is characterized in that, described rotor comprises the steel ring arranging magnet and the wheel rim be connected on steel ring.
9. an electric machine assembly, comprise stator and rotor, it is characterized in that, described stator comprises inner ring body and is installed on the winding body on inner ring body, described inner ring body comprises winding body installation portion and lays respectively at clutch shaft bearing installation portion and second axle bearing mount portion of winding body installation portion both sides, and in the radial direction of electric machine assembly, the thickness of described winding body installation portion is less than the thickness of clutch shaft bearing installation portion, this inner ring body surrounds a cavity, and this cavity runs through electric machine assembly in the axial direction at least partly.
10. electric machine assembly as claimed in claim 9, it is characterized in that, described inner ring body comprises the first split and the second split, and described winding body installation portion and clutch shaft bearing installation position are in the first split, and described second axle bearing mount portion is positioned in the second split.
11. electric machine assemblies as claimed in claim 10, is characterized in that, it is characterized in that, electric machine assembly comprises the two bearings be installed on respectively on clutch shaft bearing installation portion and the second axle bearing mount portion and two back-up rings laid respectively at outside two bearings inner ring.
12. electric machine assemblies as claimed in claim 11, is characterized in that, electric machine assembly comprises and is connected to bearing outer ring and epitrochanterian two connection covers.
13. electric machine assemblies as described in any one of claim 9 to 12, it is characterized in that, described rotor comprises the steel ring arranging magnet and the wheel rim be connected on steel ring.
14. 1 kinds of wheels, is characterized in that, comprise electric machine assembly according to any one of claim 1 to 13.
15. 1 kinds of electrodynamic balance cars, is characterized in that, comprise wheel as claimed in claim 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510502128.2A CN105071558B (en) | 2015-08-15 | 2015-08-15 | Electrodynamic balance car and its wheel and electric machine assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510502128.2A CN105071558B (en) | 2015-08-15 | 2015-08-15 | Electrodynamic balance car and its wheel and electric machine assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105071558A true CN105071558A (en) | 2015-11-18 |
| CN105071558B CN105071558B (en) | 2018-03-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510502128.2A Active CN105071558B (en) | 2015-08-15 | 2015-08-15 | Electrodynamic balance car and its wheel and electric machine assembly |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003300420A (en) * | 2002-04-10 | 2003-10-21 | Hiroshi Shimizu | In-wheel motor of electric automobile |
| JP2006057732A (en) * | 2004-08-20 | 2006-03-02 | Honda Motor Co Ltd | Wheel driving device for vehicle |
| KR20100083521A (en) * | 2009-01-14 | 2010-07-22 | 현대위아 주식회사 | Wheel structure for mounting in wheel motor |
| US20130313930A1 (en) * | 2011-01-28 | 2013-11-28 | Swissmove | Electromechanical converter system for electric vehicles |
| CN204465295U (en) * | 2015-02-10 | 2015-07-08 | 王锦帅 | External rotor permanent magnet synchronous machine |
| CN204527465U (en) * | 2015-04-13 | 2015-08-05 | 熊傲宇 | A kind of Self-balancing electronic wheelbarrow without wheel hub |
| CN105172962A (en) * | 2015-10-19 | 2015-12-23 | 成都夏金科技有限公司 | Self-balancing electric motorcycle |
| CN204906019U (en) * | 2015-08-15 | 2015-12-23 | 常州爱尔威智能科技有限公司 | Electrodynamic balance car and wheel and motor element thereof |
-
2015
- 2015-08-15 CN CN201510502128.2A patent/CN105071558B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003300420A (en) * | 2002-04-10 | 2003-10-21 | Hiroshi Shimizu | In-wheel motor of electric automobile |
| JP2006057732A (en) * | 2004-08-20 | 2006-03-02 | Honda Motor Co Ltd | Wheel driving device for vehicle |
| KR20100083521A (en) * | 2009-01-14 | 2010-07-22 | 현대위아 주식회사 | Wheel structure for mounting in wheel motor |
| US20130313930A1 (en) * | 2011-01-28 | 2013-11-28 | Swissmove | Electromechanical converter system for electric vehicles |
| CN204465295U (en) * | 2015-02-10 | 2015-07-08 | 王锦帅 | External rotor permanent magnet synchronous machine |
| CN204527465U (en) * | 2015-04-13 | 2015-08-05 | 熊傲宇 | A kind of Self-balancing electronic wheelbarrow without wheel hub |
| CN204906019U (en) * | 2015-08-15 | 2015-12-23 | 常州爱尔威智能科技有限公司 | Electrodynamic balance car and wheel and motor element thereof |
| CN105172962A (en) * | 2015-10-19 | 2015-12-23 | 成都夏金科技有限公司 | Self-balancing electric motorcycle |
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| Publication number | Publication date |
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| CN105071558B (en) | 2018-03-09 |
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