CN201869076U - Brushless hub motor for electric bicycle - Google Patents
Brushless hub motor for electric bicycle Download PDFInfo
- Publication number
- CN201869076U CN201869076U CN2010206387119U CN201020638711U CN201869076U CN 201869076 U CN201869076 U CN 201869076U CN 2010206387119 U CN2010206387119 U CN 2010206387119U CN 201020638711 U CN201020638711 U CN 201020638711U CN 201869076 U CN201869076 U CN 201869076U
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- CN
- China
- Prior art keywords
- electric bicycle
- planetary gear
- end cap
- hub motor
- hall
- 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
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Abstract
A brushless hub motor for an electric bicycle belongs to the technical field of motors and comprises a central spindle, an end cover, a hub, a stator support, a stator core, a stator winding, a magnet yoke assembly, a sun gear, a three-planetary gear mechanism, a clutch, and an annular gear which are connected with one another in a matching way, wherein a set of Hall sensors are in scarf joint in the stator core. The brushless hub motor is characterized in that bearing cover plates are arranged at two sides of a planetary bearing for installing a planetary gear in the three-planetary gear mechanism in a matching way and are fixedly connected with the planetary gear; a Hall speed measurement sensor is arranged on the stator support in a matching way; and a signal magnetic sheet is arranged at the inner side of the end over, corresponding to the Hall speed measurement sensor. The brushless hub motor of the patent can be installed at the position of a front fork or a rear fork of the electric bicycle, can drive the electric bicycle independently, is characterized by being reasonable and compact in structure, low in noise, long in service life, high in speed measurement precision and the like, is lower in production cost, is an ideal driving device for the electric bicycle and fills the blank of the built-in electric digital speed measurement of the electric bicycle hub motor.
Description
Technical field
The utility model belongs to the motor technology field, is specifically related to a kind of electric bicycle brushless hub electric motor.
Background technology
The brushless drum motor of taking turns of present electric bicycle institute adapted, it installs three planetary bearings is to adopt the hole to fix with jump ring, this fixed structure is owing to reasons such as mismachining tolerance and jump ring thickness, its end play is inevitable, in motor operation course, can produce axial endplay, increase friction, increase noise, thereby reduce electrical machinery life.The employed velometer of existing in addition electric bicycle is installed in motor housing, and it is to serve as according to calculating analog rate with the data that electric current changes, and the poor reliability that tests the speed, precision are low: nor attractive in appearance.
The utility model content
The utility model aims to provide the electric bicycle brushless hub electric motor technical scheme that a kind of three planet gears adopt no bearing clearance mounting structure and built-in electronic velocity measurement mechanisms, to overcome problems of the prior art.
Described electric bicycle brushless hub electric motor, comprise mandrel and be installed in end cap on the mandrel, wheel hub, end cap and the wheel hub formation motor housing that is connected, connect on the casing inner spindle stator support is set, stator core, stator winding, the yoke assembly, central gear, three planet gear mechanisms, clutch, the wheel hub inner surface connects the ring gear that setting cooperates with three planet gear mechanism engaged transmission, one group of Hall element of interlocking on the stator core, it is characterized in that being used to install planetary planetary bearing both sides in the described three planet gear mechanisms is equipped with bearing cover, bearing cover is fixedlyed connected with planetary gear, be equipped with the Hall tachogenerator on the described stator support, the inboard corresponding signalization magnetic sheet of end cap with the Hall tachogenerator.
Described electric bicycle brushless hub electric motor is characterized in that described yoke assembly is made of yoke ring, yoke inner end cap, permanent magnet, and permanent magnet adopts flat bonding magnetic steel to constitute at the yoke ring inner surface.
Described electric bicycle brushless hub electric motor is characterized in that riveted and fixed between described bearing cover and the planetary gear.
Above-mentioned electric bicycle can be installed in electric bicycle front fork or back vent position with brushless hub electric motor, the individual drive electric bicycle, rational in infrastructure, compact, have that noise is little, characteristics such as long service life and rate accuracy height, can reduce production costs simultaneously, be desirable electric bicycle front and rear device, the blank that domestic electric bicycle hub motor electronic digit tests the speed has been filled up in particularly built-in Hall electronic speed-determination.
Description of drawings
Fig. 1 is the utility model structural representation;
Among the figure: 1-mandrel, 2-end cap, 3-Hall element, 4-permanent magnet, 5-yoke assembly, 5a-yoke ring, 5b-yoke inner end cap, 6-wheel hub, 7-ring gear, 8-planetary bearing, 8a-bearing cover, 9-three planet gear mechanisms, 9a-planetary gear, 10-clutch, 11-central gear, 12-stator winding, 13-stator core, 14-stator support, 15-Hall tachogenerator, 16-signal magnetic sheet.
Embodiment
Now, describe embodiment of the present utility model in detail in conjunction with Figure of description:
As shown be the electric bicycle brushless hub electric motor, end cap 2, wheel hub 6 are installed on the mandrel 1, connect and compose motor housing by screw between end cap 2 and the wheel hub 6.Connect on the casing inner spindle 1 stator support 14, stator core 13, stator winding 12, yoke assembly 5, central gear 11, three planet gear mechanisms 9, clutch 10 are set.Wherein yoke assembly 5 is made of yoke ring 5a, yoke inner end cap 5b, permanent magnet 4, and yoke inner end cap 5b is installed on the mandrel 1, and yoke ring 5a is fixedly connected on yoke inner end cap 5b port, and permanent magnet 4 adopts flat bonding magnetic steel to constitute at yoke ring 5a inner surface; Permanent magnet 4 adopts flat bonding magnetic steel to constitute and substitutes traditional circular arc magnet steel, and its manufacturing cost can reduce about 20%, and flat magnet steel can adopt the moulding of slicing machine processing of cutting, and the circular arc magnet steel need use the moulding of wire cutting machine cutting processing; Ring gear 7 is fixedly connected on wheel hub 6 inner surfaces, cooperate with three planetary gear 9a difference engaged transmission of three planet gear mechanisms 9, three planetary gear 9a cooperate with central gear 11 engaged transmission respectively simultaneously, planetary bearing 8 both sides that are used to install planetary gear 9a are equipped with bearing cover 8a, bearing cover 8a is connected by riveted and fixed with planetary gear 9a, planetary bearing 8 is fixed by the bearing cover 8a of riveted and fixed on planetary gear 9a, its end play has not had, planetary bearing 8 just can not produce play in motor rotation, just no longer include friction between planetary bearing 8 and installation shaft, just can lower the running noises of motor, prolong motor useful life.One group of Hall element 3 of interlocking generally adopts 3 Hall elements on the stator core 13, arranges for 12 ° by adjacent two intervals substantially to be provided with, and is used to help electric motor starting to use.Be equipped with Hall tachogenerator 15 on the stator support 14, end cap 2 inboards are equipped with signal magnetic sheet 16 with Hall tachogenerator 15 opposite positions, motor rotates a circle, signal magnetic sheet 16 is given 15 1 signals of Hall tachogenerator, the quantity of the signal that Hall tachogenerator 15 is received in the unit interval just can be converted into rotating speed, road speed is accurately measured in the built-in Hall electronic speed-determination, has filled up the blank that domestic electric bicycle hub motor electronic digit tests the speed.
Claims (3)
1. electric bicycle brushless hub electric motor, comprise mandrel (1) and be installed in end cap (2) on the mandrel (1), wheel hub (6), end cap (2) and wheel hub (6) the formation motor housing that is connected, casing inner spindle (1) goes up to connect stator support (14) is set, stator core (13), stator winding (12), yoke assembly (5), central gear (11), three planet gear mechanisms (9), clutch (10), wheel hub (6) inner surface connects the ring gear (7) that setting cooperates with three planet gear mechanism (9) engaged transmission, stator core (13) is gone up interlocking one group of Hall element (3), planetary bearing (8) both sides that it is characterized in that being used to install in the described three planet gear mechanisms (9) planetary gear (9a) are equipped with bearing cover (8a), bearing cover (8a) is fixedlyed connected with planetary gear (9a), be equipped with Hall tachogenerator (15) on the described stator support (14), end cap (2) inboard and the corresponding signalization magnetic sheet of Hall tachogenerator (15) (16).
2. electric bicycle brushless hub electric motor as claimed in claim 1, it is characterized in that described yoke assembly (5) is made of yoke ring (5a), yoke inner end cap (5b), permanent magnet (4), permanent magnet (4) adopts flat bonding magnetic steel to constitute at yoke ring (5a) inner surface.
3. electric bicycle brushless hub electric motor as claimed in claim 1 is characterized in that riveted and fixed between described bearing cover (8a) and the planetary gear (9a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206387119U CN201869076U (en) | 2010-12-02 | 2010-12-02 | Brushless hub motor for electric bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206387119U CN201869076U (en) | 2010-12-02 | 2010-12-02 | Brushless hub motor for electric bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201869076U true CN201869076U (en) | 2011-06-15 |
Family
ID=44140219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206387119U Expired - Fee Related CN201869076U (en) | 2010-12-02 | 2010-12-02 | Brushless hub motor for electric bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201869076U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103051103A (en) * | 2013-01-19 | 2013-04-17 | 杭州海鸿车业有限公司 | Wheel hub motor with functions of sensing boost and cutting off power supply |
| CN104578599A (en) * | 2013-10-18 | 2015-04-29 | 无锡爱奇克发动机有限公司 | Device for precisely positioning working gear of motor |
-
2010
- 2010-12-02 CN CN2010206387119U patent/CN201869076U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103051103A (en) * | 2013-01-19 | 2013-04-17 | 杭州海鸿车业有限公司 | Wheel hub motor with functions of sensing boost and cutting off power supply |
| CN103051103B (en) * | 2013-01-19 | 2016-08-17 | 杭州海鸿车业有限公司 | There is power-assisted sensing and the wheel hub motor of power down function |
| CN104578599A (en) * | 2013-10-18 | 2015-04-29 | 无锡爱奇克发动机有限公司 | Device for precisely positioning working gear of motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20131202 |