CN104960609A - Electric balancing car and motor assembly thereof - Google Patents
Electric balancing car and motor assembly thereof Download PDFInfo
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- CN104960609A CN104960609A CN201510452713.6A CN201510452713A CN104960609A CN 104960609 A CN104960609 A CN 104960609A CN 201510452713 A CN201510452713 A CN 201510452713A CN 104960609 A CN104960609 A CN 104960609A
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- balance car
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Abstract
The invention discloses an electric balancing car. The electric balancing car comprises a stator and a motor rotatably arranged outside of the radial direction of a rotor by means of a bearing and further comprises a wheel of a rim which sleeves outside of the rotor and is fixedly arranged relative to the rotor. The stator is a hollow annular part. The minimum axial dimension of the hollow part of the annular part is larger than the axial dimension of an annular body. Electric connection is achieved between the annular part and a pedal mechanism and between a control system and a power supply. The middle of the wheel is of a hollow structure such that weight of the wheel is reduced and portability of the electric balancing car is improved.
Description
Technical field
The present invention relates to a kind of electrodynamic balance car, particularly relate to a kind of portable electric balance truck.
Background technology
Electrodynamic balance car is a kind of vehicle grown up in nearly twenty or thirty year, and it is little, lightweight that it has volume, the features such as flexible operation.Because electrodynamic balance car has little, the lightweight feature of volume, the common people of having it can be used as the walking-replacing tool between the station of public transport means to entrance.Or due to little, the lightweight feature of its volume, it is easily stolen that this kind of electrodynamic balance car, particularly single wheel electrodynamic balance car are placed on outdoor, therefore usually need to take to take home after a procedure to deposit.Therefore, in use more and more higher to the demand of the portability of electrodynamic balance car at present, therefore, further expendable weight and increase portability are the targets that this area is pursued jointly.
For improving portability, Chinese patent literature CN203528693U discloses a kind of hand-held design single wheel balance truck, and its wheel in the form of a ring, wheel inner ring has the internal tooth of intensive annular arrangement; Drive motor is arranged relative to this wheel eccentricities, and its mouth is connected with the transmission gear mated with wheel internal tooth; Described lithium cell and controller are placed in wheel inner annular space, and are connected and fixed the car body being formed in the lower wheel flexible rotating of drive motor driving by shell; Described riding is installed on shell both sides.By dexterously the drive motor that propulsive effort is originated being carried out eccentric setting, and carry out power transmission by the gears meshing mode of wheel ring-type internal tooth, the annulus of wheel is rotated separately, it is inner in fixed type, and leave the devices such as space mounting lithium cell and controller, eliminate outside support, not only alleviate overall weight, and reduce overall volume greatly.Equally, similar technical scheme is also disclosed at Chinese patent literature CN104527909A.All coincidentally have employed in the technical scheme of these prior aries and remove the mode that wheel spoke barrel solves the large problem of weight.Although propose the technological means reducing weight by cancelling wheel spoke barrel in this kind of prior art, but electrical motor wherein still independently, and be provided with necessary gear system for this reason, drive balance truck motion by being arranged on the internal gear be molded over inside wheel rim.
Occur a kind of using the technical scheme of a part for electrical motor as a part for wheel in prior art, a kind of electrodynamic balance car disclosed in Chinese patent literature CN204184521U, wheel hub motor wherein comprises anchor shaft, the stator support be fixedly connected with anchor shaft, be fixed on the stator core in support outer rim, be wrapped in the stator winding in each stator core respectively, be fixed on the rotor magnet inside the wheel hub corresponding with stator winding, and be fixed on the left and right electric motor end cap of wheel hub side.The left and right pedal connection of carrying occupant is that, in the frame that anchor shaft is fixedly connected with, the housing being provided with controller and rechargeable battery is also fixedly mounted in frame.Similar prior art is also disclosed in Chinese patent literature CN204077975U.In this kind of prior art, central fixed shaft serves very important effect, becomes requisite parts because which limit stator support, therefore also limit and reduces the employing of the such technological means of weight in this kind of vehicle by cancelling wheel spoke barrel.
Summary of the invention
The technical problem to be solved in the present invention cancels by application the difficult problem that wheel spoke barrel reduces the such technological means of weight on the balance truck adopting wheel hub motor, provides a kind of electrodynamic balance car being conducive to expendable weight.
For solving the problems of the technologies described above, electrodynamic balance car of the present invention, comprises motor, has stator and is installed in rotation on the rotor of described stator radial outside by bearing; Wheel, has and to be enclosed within outside described rotor radial and relative to the hard-wired spokeless wheel rim of described rotor; Wherein, described stator is the annular element of hollow, and the minimum axial direction yardstick of the hollow space of described annular element is greater than the axial dimension of described annular element; Described annular element is connected with pedal gear, control system and power supply.
Further, described rotor and described spokeless wheel rim are the single component be molded as one.
Further, the bearing inner ring of described bearing, fixed by least two fixed bodies that the stator inner loop wall that is fixedly installed on described stator axially stretches out and described stator, described fixed body is also fixed on the inner ring internal ring wall of described bearing inner ring.
Further, described motor both sides are provided with annular fixing member, and described connecting element is fixedly connected with described stator by described fixed body; Connecting element described in each is provided with one of parts such as described pedal gear, control system, housing and power supply, part or all of fabricated section are installed.
All right, described motor both sides are provided with annular fixing member, and described connecting element is fixedly connected with described stator by least two fixed bodies stretched out from described stator shaft orientation; Connecting element described in each is provided with one of parts such as described pedal gear, control system, housing and power supply, part or all of fabricated section are installed.
Above-mentioned electrodynamic balance car comprises the two annular connection covers laying respectively at described motor both sides further, and the outside race of connection cover described in each and corresponding described bearing and described spokeless wheel rim or described rotor are fixedly connected.
Preferably, the quantity of described fixed body is three, and is uniformly distributed on stator.
Further, described spokeless wheel rim is provided with the structure of installation one or two tires.
Further, described housing comprises the supporter be positioned at above described spokeless wheel rim, and the both sides of described supporter are extended with the hold-down arm be installed on described connecting element respectively.
Further, described housing forms the cylindrical body protruding into described stator footpath and inwardly survey.
Preferably, described power supply and described control system are positioned over the top of described supporter, described housing are provided with the handle helped for occupant.
In addition, also proposed a kind of electric machine assembly, comprise stator, be installed in rotation on the rotor of described stator radial outside by bearing; Described stator is the annular element of hollow.
Further, described stator is fixedly installed at least two fixed bodies, is fixedly connected on the bearing inner ring of the two bearings of described stator both sides by described fixed body respectively, the outer race of described bearing connects described rotor.
Further, described fixed body is fixedly connected in the inner radial wall of described stator.
Further, this electric machine assembly comprises the two annular connection covers being positioned at both sides further, and connection cover described in each is fixedly connected with corresponding described outer race and described rotor.
The present invention has following beneficial effect: because the stator radially inner side of the motor in above technical scheme surrounds a cavity, this cavity runs through wheel at least partly, so the middle part of wheel is hollow structure, thus the weight of wheel can be alleviated, increase the portability of electrodynamic balance car.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of first embodiment of the invention electrodynamic balance car.
Fig. 2 removes the schematic perspective view of a side body for the car of electrodynamic balance shown in Fig. 1.
Fig. 3 is the decomposed schematic diagram of the car of electrodynamic balance shown in Fig. 1 wheel.
Fig. 4 is the schematic perspective view of second embodiment of the invention electrodynamic balance car.
Fig. 5 is the decomposed schematic diagram of the car of electrodynamic balance shown in Fig. 4 wheel.
Detailed description of the invention
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 and Fig. 2, electrodynamic balance car of the present invention is comprised the motor of the rotor 52 having stator 51 and be installed in rotation on described stator 51 radial outside by bearing 14 and has and be enclosed within described rotor 52 radial outside and relative to the wheel 1 of the hard-wired spokeless wheel rim 11 of described rotor 52.Wherein, described stator 51 is the annular element of hollow, and described annular element is connected with the carrying left and right pedal gear 3 of occupant, control system and power supply 4.On the stator inner loop wall 511 of described stator 51, welding arranges three circumferential well-distributeds and the fixed body 6 axially stretched out, the external part of described fixed body 6 is welded on the inner ring internal ring wall of the inner ring 141 of described bearing 14, is fixedly connected with by the described inner ring 141 of described bearing 14 thus with described stator 51.Be respectively arranged with annular fixing member 12 in described motor both sides, described connecting element 12 is fixedly connected with described stator 51 by described fixed body 6; Connecting element 12 described in each is provided with install the pedal fabricated section 121 of pedal gear 3, the housing mount 122 of the housing 2 be covered on wheel 1 is installed and is installed on the fabricated section of the parts such as control system, power supply 4 in housing 2.Pedal fabricated section 121 is positioned at the bottom of described connecting element 12, and housing fixed part 122 is positioned at the top of described connecting element 12.Two annular connection covers 13 are set respectively in described motor both sides, outer rim and the described rotor 52 of described connection cover 13 are fixedly connected, and be fixedly connected with the outside race 142 of corresponding described bearing 14, and be placed on the radial outside of described connecting element 12, namely described connecting element 12 is positioned at the space of the annular of described connection cover 13.Described connection cover 13 pollutes motor in order to prevent mix dirt etc. of particle.Described spokeless wheel rim 11 is be fixedly connected with rotor 52, and rotor 52 can drive spokeless wheel rim 11 to rotate, for spokeless wheel rim 11 provides power.In the present embodiment, spokeless wheel rim 11 is two parts with the steel ring 521 of rotor 52, as shown in Figure 3, is fixed together in a conventional manner after described spokeless wheel rim 11 and rotor 52 are shaping respectively.And in the present embodiment, described spokeless wheel rim 11 is provided with two can the wheel hub of mounting tyre, and namely the wheel 1 of present embodiment is double wheel hub wheel.
Described motor comprises the stator 51 of cast and is arranged at the rotor 52 of stator 51 periphery.Stator 51 has the inwall 511 of cast, and the periphery of this inwall 511 is set to can the structure of coil around the home, and the inwall 511 of this cast surrounds a cavity 510.Rotor 52 comprises steel ring 521 and is arranged at the some magnet 522 on steel ring 521 inner ring.After energising, rotor 52 rotates around stator 51.
Please again shown in composition graphs 2, described housing 2 comprises the supporter 21 be positioned at above wheel 1, and the both sides of this supporter 21 are extended with the hold-down arm 22 be installed on fixed part 122 respectively.The top of supporter 21 forms receiving space 20, in order to place various circuit card and the electronic component of power supply 4 and control system in this receiving space 20.Please again shown in composition graphs 1, described housing 2 is provided with the cylindrical body 23 protruded in described cavity 510, and this cylindrical body 23 can prevent foreign matter from entering wheel and then damage motor.As can be seen from Figure 1, electrodynamic balance car of the present invention is that left and right is run through, and adds science and technology sense and the aesthetic property of car body.
In order to increase the sense of security of bicyclist, electrodynamic balance car can also be provided with handrail 7, and in the present embodiment, handrail 7 is set to one and is installed on expansion link on housing 2, when riding, can move suitable length to, during collection, can be contracted to most short status.
Because connecting element 12, seal cover cap 13 are cast, so the cavity 510 of motor stator 51 at least partially runs through wheel, namely wheel 1 is that hollow is arranged, and the middle part of wheel does not have structure member, thus the weight of wheel can be alleviated, increase the portability of electrodynamic balance car.
Refer to shown in Fig. 4 and Fig. 5, which show the second embodiment of electrodynamic balance car of the present invention.Be with the first embodiment difference, the spokeless wheel rim 11 of wheel 1 is single hub wheel.
For further simplified structure, in the above-described embodiments, selecting rim 11 with the steel ring 521 of rotor 52 also can be the single component be molded as one.The fabricated section of the parts such as pedal gear 3, control system, housing and power supply also can straight forming or be arranged on described stator or described bearing inner ring inner radial wall on or on sidewall.Number of components can be reduced so further and be convenient to processing and assembling.
In addition, the quantity of described fixed body 6 also can be, more than two or three, can select as required, and described fixed body 6 is not limited to that position being fixed on described stator, as long as the position being in fact suitable for fixing all is fine.
Pedal fabricated section 121, fixed part 122 can be one-body molded with connecting element 12, also can shaping respectively after be fixed on connecting element 12.Connecting element 12 is fixedly connected with fixed body 6 and is positioned at the outside of bearing 14.
Certainly, the fabricated section being installed on the parts such as the control system in housing 2, power supply 4 also can be arranged on described connecting element 12.
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 electrodynamic balance car, comprises motor, has stator and is installed in rotation on the rotor of described stator radial outside by bearing; Wheel, has and to be enclosed within outside described rotor radial and relative to the hard-wired spokeless wheel rim of described rotor; It is characterized in that: described stator is the annular element of hollow, wherein, the minimum axial direction yardstick of the hollow space of described annular element is greater than the axial dimension of described annular element; Described annular element with pedal gear, control system and power supply be connected.
2. electrodynamic balance car according to claim 1, is characterized in that: described rotor and described spokeless wheel rim are the single component be molded as one.
3. electrodynamic balance car according to claim 1 and 2, it is characterized in that: the bearing inner ring of described bearing, fixed by least two fixed bodies that the stator inner loop wall that is fixedly installed on described stator axially stretches out and described stator, described fixed body is also fixed on the inner ring internal ring wall of described bearing inner ring.
4. electrodynamic balance car according to claim 3, is characterized in that: described motor both sides are provided with annular fixing member, and described connecting element is fixedly connected with described stator by described fixed body; Connecting element described in each is provided with one of parts such as pedal gear, control system, housing and power supply, part or all of fabricated section are installed.
5. electrodynamic balance car according to claim 1 and 2, is characterized in that: described motor both sides are provided with annular fixing member, and described connecting element is fixedly connected with described stator by least two fixed bodies stretched out from described stator shaft orientation; Connecting element described in each is provided with one of parts such as pedal gear, control system, housing and power supply, part or all of fabricated section are installed.
6. the electrodynamic balance car as described in claim 1-5 any one, it is characterized in that, comprise the two annular connection covers laying respectively at described motor both sides further, the outside race of connection cover described in each and corresponding described bearing and described spokeless wheel rim or described rotor are fixedly connected.
7. the electrodynamic balance car as described in any one of claim 3-6, is characterized in that, the quantity of described fixed body is three, and is uniformly distributed on stator.
8. the electrodynamic balance car according to any one of claim 1 to 7, is characterized in that, described spokeless wheel rim is provided with the structure of installation one or two tires.
9. the electrodynamic balance car as described in claim 4-7 any one, is characterized in that, described housing comprises the supporter be positioned at above described spokeless wheel rim, and the both sides of described supporter are extended with the hold-down arm be installed on described connecting element respectively.
10. the electrodynamic balance car as described in claim 4-7 any one, is characterized in that, described housing forms the cylindrical body protruding into described stator footpath and inwardly survey.
11. electrodynamic balance cars as described in claim 9 or 10, it is characterized in that, described power supply and described control system are positioned over the top of described supporter, described housing are provided with the handle helped for occupant.
12. 1 kinds of electric machine assemblies, comprise stator, are installed in rotation on the rotor of described stator radial outside by bearing; It is characterized in that, described stator is the annular element of hollow.
13. electric machine assemblies as claimed in claim 12, it is characterized in that, described stator is fixedly installed at least two fixed bodies, is fixedly connected on the bearing inner ring of the two bearings of described stator both sides by described fixed body respectively, the outer race of described bearing connects described rotor.
14. electric machine assemblies as described in claim 12 or 13, it is characterized in that, described fixed body is fixedly connected in the inner radial wall of described stator.
15. electric machine assemblies as described in claim 12 or 13, it is characterized in that, this electric machine assembly comprises the two annular connection covers being positioned at both sides further, and connection cover described in each is fixedly connected with corresponding described outer race and described rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510452713.6A CN104960609B (en) | 2015-07-28 | 2015-07-28 | Electrodynamic balance car and its electric machine assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510452713.6A CN104960609B (en) | 2015-07-28 | 2015-07-28 | Electrodynamic balance car and its electric machine assembly |
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| Publication Number | Publication Date |
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| CN104960609A true CN104960609A (en) | 2015-10-07 |
| CN104960609B CN104960609B (en) | 2017-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510452713.6A Active CN104960609B (en) | 2015-07-28 | 2015-07-28 | Electrodynamic balance car and its electric machine assembly |
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| CN (1) | CN104960609B (en) |
Cited By (5)
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| CN105172961A (en) * | 2015-10-14 | 2015-12-23 | 浙江大学 | Single-wheel double-ring-surface bicycle capable of realizing high-sensitivity steering |
| CN105172962A (en) * | 2015-10-19 | 2015-12-23 | 成都夏金科技有限公司 | Self-balancing electric motorcycle |
| CN106005144A (en) * | 2016-05-31 | 2016-10-12 | 张军凯 | Electric vehicle pedal device and electric vehicle thereof |
| CN106143743A (en) * | 2016-08-27 | 2016-11-23 | 彭良 | A kind of omnirange driving wheel and multi-direction balance car |
| WO2019110558A1 (en) * | 2017-12-04 | 2019-06-13 | Conti Temic Microelectronic Gmbh | Orbital wheel |
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| WO2019110558A1 (en) * | 2017-12-04 | 2019-06-13 | Conti Temic Microelectronic Gmbh | Orbital wheel |
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| Publication number | Publication date |
|---|---|
| CN104960609B (en) | 2017-07-11 |
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